def __init__(self, *trees):
        from math import sqrt, ceil

        self._trees = trees

        self._top = Tk()
        self._top.title('NLTK')
        self._top.bind('<Control-x>', self.destroy)
        self._top.bind('<Control-q>', self.destroy)

        cf = self._cframe = CanvasFrame(self._top)
        self._top.bind('<Control-p>', self._cframe.print_to_file)

        # Size is variable.
        self._size = IntVar(self._top)
        self._size.set(12)
        bold = ('helvetica', -self._size.get(), 'bold')
        helv = ('helvetica', -self._size.get())

        # Lay the trees out in a square.
        self._width = int(ceil(sqrt(len(trees))))
        self._widgets = []
        for i in range(len(trees)):
            widget = TreeWidget(cf.canvas(), trees[i], node_font=bold,
                                leaf_color='#008040', node_color='#004080',
                                roof_color='#004040', roof_fill='white',
                                line_color='#004040', draggable=1,
                                leaf_font=helv)
            widget.bind_click_trees(widget.toggle_collapsed)
            self._widgets.append(widget)
            cf.add_widget(widget, 0, 0)

        self._layout()
        self._cframe.pack(expand=1, fill='both')
        self._init_menubar()
Beispiel #2
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    def _init_fonts(self, root):
        # See: <http://www.astro.washington.edu/owen/ROTKFolklore.html>
        self._sysfont = Font(font=Button()["font"])
        root.option_add("*Font", self._sysfont)

        # TWhat's our font size (default=same as sysfont)
        self._size = IntVar(root)
        self._size.set(self._sysfont.cget('size'))

        self._boldfont = Font(family='helvetica', weight='bold', size=self._size.get())
        self._font = Font(family='helvetica', size=self._size.get())
Beispiel #3
0
    def __init__(self, grammar, sent, trace=0):
        self._sent = sent
        self._parser = SteppingShiftReduceParser(grammar, trace)

        # Set up the main window.
        self._top = Tk()
        self._top.title('Shift Reduce Parser Application')

        # Animations.  animating_lock is a lock to prevent the demo
        # from performing new operations while it's animating.
        self._animating_lock = 0
        self._animate = IntVar(self._top)
        self._animate.set(10)  # = medium

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Initialize fonts.
        self._init_fonts(self._top)

        # Set up key bindings.
        self._init_bindings()

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_feedback(self._top)
        self._init_grammar(self._top)
        self._init_canvas(self._top)

        # A popup menu for reducing.
        self._reduce_menu = Menu(self._canvas, tearoff=0)

        # Reset the demo, and set the feedback frame to empty.
        self.reset()
        self._lastoper1['text'] = ''
Beispiel #4
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    def __init__(self, grammar, sent, trace=0):
        self._sent = sent
        self._parser = SteppingRecursiveDescentParser(grammar, trace)

        # Set up the main window.
        self._top = Tk()
        self._top.title('Recursive Descent Parser Application')

        # Set up key bindings.
        self._init_bindings()

        # Initialize the fonts.
        self._init_fonts(self._top)

        # Animations.  animating_lock is a lock to prevent the demo
        # from performing new operations while it's animating.
        self._animation_frames = IntVar(self._top)
        self._animation_frames.set(5)
        self._animating_lock = 0
        self._autostep = 0

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_feedback(self._top)
        self._init_grammar(self._top)
        self._init_canvas(self._top)

        # Initialize the parser.
        self._parser.initialize(self._sent)

        # Resize callback
        self._canvas.bind('<Configure>', self._configure)
    def __init__(self, grammar, sent, trace=0):
        self._sent = sent
        self._parser = SteppingRecursiveDescentParser(grammar, trace)

        # Set up the main window.
        self._top = Tk()
        self._top.title('Recursive Descent Parser Application')

        # Set up key bindings.
        self._init_bindings()

        # Initialize the fonts.
        self._init_fonts(self._top)

        # Animations.  animating_lock is a lock to prevent the demo
        # from performing new operations while it's animating.
        self._animation_frames = IntVar(self._top)
        self._animation_frames.set(5)
        self._animating_lock = 0
        self._autostep = 0

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_feedback(self._top)
        self._init_grammar(self._top)
        self._init_canvas(self._top)

        # Initialize the parser.
        self._parser.initialize(self._sent)

        # Resize callback
        self._canvas.bind('<Configure>', self._configure)
Beispiel #6
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    def __init__(self, examples):
        # Set up the main window.
        self._top = Tk()
        self._top.title('DRT Glue Demo')

        # Set up key bindings.
        self._init_bindings()

        # Initialize the fonts.self._error = None
        self._init_fonts(self._top)

        self._examples = examples
        self._readingCache = [None for example in examples]

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Set the data to None
        self._curExample = -1
        self._readings = []
        self._drs = None
        self._drsWidget = None
        self._error = None

        self._init_glue()

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_exampleListbox(self._top)
        self._init_readingListbox(self._top)
        self._init_canvas(self._top)

        # Resize callback
        self._canvas.bind('<Configure>', self._configure)
Beispiel #7
0
Datei: qlv.py Projekt: ufwt/qdt
    def __init__(self):
        GUITk.__init__(self)

        self.title(_("QEmu Log Viewer"))

        self.columnconfigure(0, weight = 1)

        self.rowconfigure(0, weight = 1)
        panes = AutoPanedWindow(self, orient = VERTICAL, sashrelief = RAISED)
        panes.grid(row = 0, column = 0, sticky = "NESW")

        fr_instructions = GUIFrame(panes)
        panes.add(fr_instructions)

        fr_instructions.rowconfigure(0, weight = 1)
        fr_instructions.columnconfigure(0, weight = 1)
        fr_instructions.columnconfigure(1, weight = 0)

        tv = InstructionsTreeview(fr_instructions)
        self.tv_instructions = tv
        tv.grid(row = 0, column = 0, sticky = "NESW")
        tv.bind("<<TreeviewSelect>>", self._on_instruction_selected, "+")

        vscroll = Scrollbar(fr_instructions)
        vscroll.grid(row = 0, column = 1, sticky = "NS")

        tv.config(yscrollcommand = vscroll.set)
        vscroll.config(command = tv.yview)

        # Showing trace message (CPU registers, etc.).
        self.panes_trace_text = panes_trace_text = AutoPanedWindow(panes,
            orient = HORIZONTAL,
            sashrelief = RAISED
        )
        panes.add(panes_trace_text)

        self.rowconfigure(1, weight = 0)
        self.sb = sb = Statusbar(self)
        sb.grid(row = 1, column = 0, sticky = "EWS")
        self.var_inst_n = var = IntVar(self)

        sb.right(_("Instructions"))
        sb.right(var)

        self.qlog_trace_texts = []
Beispiel #8
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class TreeView(object):
    def __init__(self, *trees):
        from math import sqrt, ceil

        self._trees = trees

        self._top = Tk()
        self._top.title('NLTK')
        self._top.bind('<Control-x>', self.destroy)
        self._top.bind('<Control-q>', self.destroy)

        cf = self._cframe = CanvasFrame(self._top)
        self._top.bind('<Control-p>', self._cframe.print_to_file)

        # Size is variable.
        self._size = IntVar(self._top)
        self._size.set(12)
        bold = ('helvetica', -self._size.get(), 'bold')
        helv = ('helvetica', -self._size.get())

        # Lay the trees out in a square.
        self._width = int(ceil(sqrt(len(trees))))
        self._widgets = []
        for i in range(len(trees)):
            widget = TreeWidget(cf.canvas(), trees[i], node_font=bold,
                                leaf_color='#008040', node_color='#004080',
                                roof_color='#004040', roof_fill='white',
                                line_color='#004040', draggable=1,
                                leaf_font=helv)
            widget.bind_click_trees(widget.toggle_collapsed)
            self._widgets.append(widget)
            cf.add_widget(widget, 0, 0)

        self._layout()
        self._cframe.pack(expand=1, fill='both')
        self._init_menubar()

    def _layout(self):
        i = x = y = ymax = 0
        width = self._width
        for i in range(len(self._widgets)):
            widget = self._widgets[i]
            (oldx, oldy) = widget.bbox()[:2]
            if i % width == 0:
                y = ymax
                x = 0
            widget.move(x-oldx, y-oldy)
            x = widget.bbox()[2] + 10
            ymax = max(ymax, widget.bbox()[3] + 10)

    def _init_menubar(self):
        menubar = Menu(self._top)

        filemenu = Menu(menubar, tearoff=0)
        filemenu.add_command(label='Print to Postscript', underline=0,
                             command=self._cframe.print_to_file,
                             accelerator='Ctrl-p')
        filemenu.add_command(label='Exit', underline=1,
                             command=self.destroy, accelerator='Ctrl-x')
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        zoommenu = Menu(menubar, tearoff=0)
        zoommenu.add_radiobutton(label='Tiny', variable=self._size,
                                 underline=0, value=10, command=self.resize)
        zoommenu.add_radiobutton(label='Small', variable=self._size,
                                 underline=0, value=12, command=self.resize)
        zoommenu.add_radiobutton(label='Medium', variable=self._size,
                                 underline=0, value=14, command=self.resize)
        zoommenu.add_radiobutton(label='Large', variable=self._size,
                                 underline=0, value=28, command=self.resize)
        zoommenu.add_radiobutton(label='Huge', variable=self._size,
                                 underline=0, value=50, command=self.resize)
        menubar.add_cascade(label='Zoom', underline=0, menu=zoommenu)

        self._top.config(menu=menubar)

    def resize(self, *e):
        bold = ('helvetica', -self._size.get(), 'bold')
        helv = ('helvetica', -self._size.get())
        xspace = self._size.get()
        yspace = self._size.get()
        for widget in self._widgets:
            widget['node_font'] = bold
            widget['leaf_font'] = helv
            widget['xspace'] = xspace
            widget['yspace'] = yspace
            if self._size.get() < 20: widget['line_width'] = 1
            elif self._size.get() < 30: widget['line_width'] = 2
            else: widget['line_width'] = 3
        self._layout()

    def destroy(self, *e):
        if self._top is None: return
        self._top.destroy()
        self._top = None

    def mainloop(self, *args, **kwargs):
        """
        Enter the Tkinter mainloop.  This function must be called if
        this demo is created from a non-interactive program (e.g.
        from a secript); otherwise, the demo will close as soon as
        the script completes.
        """
        if in_idle(): return
        self._top.mainloop(*args, **kwargs)
Beispiel #9
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    def init_gui(self):
        """init helper"""

        window = PanedWindow(self.root, orient="vertical")
        window.pack(side=TOP, fill=BOTH, expand=True)

        top_pane = Frame(window)
        window.add(top_pane)
        mid_pane = Frame(window)
        window.add(mid_pane)
        bottom_pane = Frame(window)
        window.add(bottom_pane)

        #setting up frames
        top_frame = Frame(top_pane)
        mid_frame = Frame(top_pane)
        history_frame = Frame(top_pane)
        radio_frame = Frame(mid_pane)
        rating_frame = Frame(mid_pane)
        res_frame = Frame(mid_pane)
        check_frame = Frame(bottom_pane)
        msg_frame = Frame(bottom_pane)
        btn_frame = Frame(bottom_pane)
        top_frame.pack(side=TOP, fill=X)
        mid_frame.pack(side=TOP, fill=X)
        history_frame.pack(side=TOP, fill=BOTH, expand=True)
        radio_frame.pack(side=TOP, fill=X)
        rating_frame.pack(side=TOP, fill=X)
        res_frame.pack(side=TOP, fill=BOTH, expand=True)
        check_frame.pack(side=TOP, fill=X)
        msg_frame.pack(side=TOP, fill=BOTH, expand=True)
        btn_frame.pack(side=TOP, fill=X)

        # Binding F5 application-wide to run lint
        self.root.bind('<F5>', self.run_lint)

        #Message ListBox
        rightscrollbar = Scrollbar(msg_frame)
        rightscrollbar.pack(side=RIGHT, fill=Y)
        bottomscrollbar = Scrollbar(msg_frame, orient=HORIZONTAL)
        bottomscrollbar.pack(side=BOTTOM, fill=X)
        self.lb_messages = Listbox(msg_frame,
                                   yscrollcommand=rightscrollbar.set,
                                   xscrollcommand=bottomscrollbar.set,
                                   bg="white")
        self.lb_messages.bind("<Double-Button-1>", self.show_sourcefile)
        self.lb_messages.pack(expand=True, fill=BOTH)
        rightscrollbar.config(command=self.lb_messages.yview)
        bottomscrollbar.config(command=self.lb_messages.xview)

        #History ListBoxes
        rightscrollbar2 = Scrollbar(history_frame)
        rightscrollbar2.pack(side=RIGHT, fill=Y)
        bottomscrollbar2 = Scrollbar(history_frame, orient=HORIZONTAL)
        bottomscrollbar2.pack(side=BOTTOM, fill=X)
        self.showhistory = Listbox(history_frame,
                                   yscrollcommand=rightscrollbar2.set,
                                   xscrollcommand=bottomscrollbar2.set,
                                   bg="white")
        self.showhistory.pack(expand=True, fill=BOTH)
        rightscrollbar2.config(command=self.showhistory.yview)
        bottomscrollbar2.config(command=self.showhistory.xview)
        self.showhistory.bind('<Double-Button-1>', self.select_recent_file)
        self.set_history_window()

        #status bar
        self.status = Label(self.root, text="", bd=1, relief=SUNKEN, anchor=W)
        self.status.pack(side=BOTTOM, fill=X)

        #labelbl_ratingls
        lbl_rating_label = Label(rating_frame, text='Rating:')
        lbl_rating_label.pack(side=LEFT)
        lbl_rating = Label(rating_frame, textvariable=self.rating)
        lbl_rating.pack(side=LEFT)
        Label(mid_frame, text='Recently Used:').pack(side=LEFT)
        Label(top_frame, text='Module or package').pack(side=LEFT)

        #file textbox
        self.txt_module = Entry(top_frame, background='white')
        self.txt_module.bind('<Return>', self.run_lint)
        self.txt_module.pack(side=LEFT, expand=True, fill=X)

        #results box
        rightscrollbar = Scrollbar(res_frame)
        rightscrollbar.pack(side=RIGHT, fill=Y)
        bottomscrollbar = Scrollbar(res_frame, orient=HORIZONTAL)
        bottomscrollbar.pack(side=BOTTOM, fill=X)
        self.results = Listbox(res_frame,
                               yscrollcommand=rightscrollbar.set,
                               xscrollcommand=bottomscrollbar.set,
                               bg="white",
                               font="Courier")
        self.results.pack(expand=True, fill=BOTH, side=BOTTOM)
        rightscrollbar.config(command=self.results.yview)
        bottomscrollbar.config(command=self.results.xview)

        #buttons
        Button(top_frame, text='Open', command=self.file_open).pack(side=LEFT)
        Button(top_frame,
               text='Open Package',
               command=(lambda: self.file_open(package=True))).pack(side=LEFT)

        self.btnRun = Button(top_frame, text='Run', command=self.run_lint)
        self.btnRun.pack(side=LEFT)
        Button(btn_frame, text='Quit', command=self.quit).pack(side=BOTTOM)

        #radio buttons
        self.information_box = IntVar()
        self.convention_box = IntVar()
        self.refactor_box = IntVar()
        self.warning_box = IntVar()
        self.error_box = IntVar()
        self.fatal_box = IntVar()
        i = Checkbutton(check_frame,
                        text="Information",
                        fg=COLORS['(I)'],
                        variable=self.information_box,
                        command=self.refresh_msg_window)
        c = Checkbutton(check_frame,
                        text="Convention",
                        fg=COLORS['(C)'],
                        variable=self.convention_box,
                        command=self.refresh_msg_window)
        r = Checkbutton(check_frame,
                        text="Refactor",
                        fg=COLORS['(R)'],
                        variable=self.refactor_box,
                        command=self.refresh_msg_window)
        w = Checkbutton(check_frame,
                        text="Warning",
                        fg=COLORS['(W)'],
                        variable=self.warning_box,
                        command=self.refresh_msg_window)
        e = Checkbutton(check_frame,
                        text="Error",
                        fg=COLORS['(E)'],
                        variable=self.error_box,
                        command=self.refresh_msg_window)
        f = Checkbutton(check_frame,
                        text="Fatal",
                        fg=COLORS['(F)'],
                        variable=self.fatal_box,
                        command=self.refresh_msg_window)
        i.select()
        c.select()
        r.select()
        w.select()
        e.select()
        f.select()
        i.pack(side=LEFT)
        c.pack(side=LEFT)
        r.pack(side=LEFT)
        w.pack(side=LEFT)
        e.pack(side=LEFT)
        f.pack(side=LEFT)

        #check boxes
        self.box = StringVar()
        # XXX should be generated
        report = Radiobutton(radio_frame,
                             text="Report",
                             variable=self.box,
                             value="Report",
                             command=self.refresh_results_window)
        raw_met = Radiobutton(radio_frame,
                              text="Raw metrics",
                              variable=self.box,
                              value="Raw metrics",
                              command=self.refresh_results_window)
        dup = Radiobutton(radio_frame,
                          text="Duplication",
                          variable=self.box,
                          value="Duplication",
                          command=self.refresh_results_window)
        ext = Radiobutton(radio_frame,
                          text="External dependencies",
                          variable=self.box,
                          value="External dependencies",
                          command=self.refresh_results_window)
        stat = Radiobutton(radio_frame,
                           text="Statistics by type",
                           variable=self.box,
                           value="Statistics by type",
                           command=self.refresh_results_window)
        msg_cat = Radiobutton(radio_frame,
                              text="Messages by category",
                              variable=self.box,
                              value="Messages by category",
                              command=self.refresh_results_window)
        msg = Radiobutton(radio_frame,
                          text="Messages",
                          variable=self.box,
                          value="Messages",
                          command=self.refresh_results_window)
        source_file = Radiobutton(radio_frame,
                                  text="Source File",
                                  variable=self.box,
                                  value="Source File",
                                  command=self.refresh_results_window)
        report.select()
        report.grid(column=0, row=0, sticky=W)
        raw_met.grid(column=1, row=0, sticky=W)
        dup.grid(column=2, row=0, sticky=W)
        msg.grid(column=3, row=0, sticky=W)
        stat.grid(column=0, row=1, sticky=W)
        msg_cat.grid(column=1, row=1, sticky=W)
        ext.grid(column=2, row=1, sticky=W)
        source_file.grid(column=3, row=1, sticky=W)

        #dictionary for check boxes and associated error term
        self.msg_type_dict = {
            'I': lambda: self.information_box.get() == 1,
            'C': lambda: self.convention_box.get() == 1,
            'R': lambda: self.refactor_box.get() == 1,
            'E': lambda: self.error_box.get() == 1,
            'W': lambda: self.warning_box.get() == 1,
            'F': lambda: self.fatal_box.get() == 1
        }
        self.txt_module.focus_set()
Beispiel #10
0
class LintGui(object):
    """Build and control a window to interact with pylint"""
    def __init__(self, root=None):
        """init"""
        self.root = root or Tk()
        self.root.title('Pylint')
        #reporter
        self.reporter = None
        #message queue for output from reporter
        self.msg_queue = six.moves.queue.Queue()
        self.msgs = []
        self.visible_msgs = []
        self.filenames = []
        self.rating = StringVar()
        self.tabs = {}
        self.report_stream = BasicStream(self)
        #gui objects
        self.lb_messages = None
        self.showhistory = None
        self.results = None
        self.btnRun = None
        self.information_box = None
        self.convention_box = None
        self.refactor_box = None
        self.warning_box = None
        self.error_box = None
        self.fatal_box = None
        self.txtModule = None
        self.status = None
        self.msg_type_dict = None
        self.init_gui()

    def init_gui(self):
        """init helper"""

        window = PanedWindow(self.root, orient="vertical")
        window.pack(side=TOP, fill=BOTH, expand=True)

        top_pane = Frame(window)
        window.add(top_pane)
        mid_pane = Frame(window)
        window.add(mid_pane)
        bottom_pane = Frame(window)
        window.add(bottom_pane)

        #setting up frames
        top_frame = Frame(top_pane)
        mid_frame = Frame(top_pane)
        history_frame = Frame(top_pane)
        radio_frame = Frame(mid_pane)
        rating_frame = Frame(mid_pane)
        res_frame = Frame(mid_pane)
        check_frame = Frame(bottom_pane)
        msg_frame = Frame(bottom_pane)
        btn_frame = Frame(bottom_pane)
        top_frame.pack(side=TOP, fill=X)
        mid_frame.pack(side=TOP, fill=X)
        history_frame.pack(side=TOP, fill=BOTH, expand=True)
        radio_frame.pack(side=TOP, fill=X)
        rating_frame.pack(side=TOP, fill=X)
        res_frame.pack(side=TOP, fill=BOTH, expand=True)
        check_frame.pack(side=TOP, fill=X)
        msg_frame.pack(side=TOP, fill=BOTH, expand=True)
        btn_frame.pack(side=TOP, fill=X)

        # Binding F5 application-wide to run lint
        self.root.bind('<F5>', self.run_lint)

        #Message ListBox
        rightscrollbar = Scrollbar(msg_frame)
        rightscrollbar.pack(side=RIGHT, fill=Y)
        bottomscrollbar = Scrollbar(msg_frame, orient=HORIZONTAL)
        bottomscrollbar.pack(side=BOTTOM, fill=X)
        self.lb_messages = Listbox(msg_frame,
                                   yscrollcommand=rightscrollbar.set,
                                   xscrollcommand=bottomscrollbar.set,
                                   bg="white")
        self.lb_messages.bind("<Double-Button-1>", self.show_sourcefile)
        self.lb_messages.pack(expand=True, fill=BOTH)
        rightscrollbar.config(command=self.lb_messages.yview)
        bottomscrollbar.config(command=self.lb_messages.xview)

        #History ListBoxes
        rightscrollbar2 = Scrollbar(history_frame)
        rightscrollbar2.pack(side=RIGHT, fill=Y)
        bottomscrollbar2 = Scrollbar(history_frame, orient=HORIZONTAL)
        bottomscrollbar2.pack(side=BOTTOM, fill=X)
        self.showhistory = Listbox(history_frame,
                                   yscrollcommand=rightscrollbar2.set,
                                   xscrollcommand=bottomscrollbar2.set,
                                   bg="white")
        self.showhistory.pack(expand=True, fill=BOTH)
        rightscrollbar2.config(command=self.showhistory.yview)
        bottomscrollbar2.config(command=self.showhistory.xview)
        self.showhistory.bind('<Double-Button-1>', self.select_recent_file)
        self.set_history_window()

        #status bar
        self.status = Label(self.root, text="", bd=1, relief=SUNKEN, anchor=W)
        self.status.pack(side=BOTTOM, fill=X)

        #labelbl_ratingls
        lbl_rating_label = Label(rating_frame, text='Rating:')
        lbl_rating_label.pack(side=LEFT)
        lbl_rating = Label(rating_frame, textvariable=self.rating)
        lbl_rating.pack(side=LEFT)
        Label(mid_frame, text='Recently Used:').pack(side=LEFT)
        Label(top_frame, text='Module or package').pack(side=LEFT)

        #file textbox
        self.txt_module = Entry(top_frame, background='white')
        self.txt_module.bind('<Return>', self.run_lint)
        self.txt_module.pack(side=LEFT, expand=True, fill=X)

        #results box
        rightscrollbar = Scrollbar(res_frame)
        rightscrollbar.pack(side=RIGHT, fill=Y)
        bottomscrollbar = Scrollbar(res_frame, orient=HORIZONTAL)
        bottomscrollbar.pack(side=BOTTOM, fill=X)
        self.results = Listbox(res_frame,
                               yscrollcommand=rightscrollbar.set,
                               xscrollcommand=bottomscrollbar.set,
                               bg="white",
                               font="Courier")
        self.results.pack(expand=True, fill=BOTH, side=BOTTOM)
        rightscrollbar.config(command=self.results.yview)
        bottomscrollbar.config(command=self.results.xview)

        #buttons
        Button(top_frame, text='Open', command=self.file_open).pack(side=LEFT)
        Button(top_frame,
               text='Open Package',
               command=(lambda: self.file_open(package=True))).pack(side=LEFT)

        self.btnRun = Button(top_frame, text='Run', command=self.run_lint)
        self.btnRun.pack(side=LEFT)
        Button(btn_frame, text='Quit', command=self.quit).pack(side=BOTTOM)

        #radio buttons
        self.information_box = IntVar()
        self.convention_box = IntVar()
        self.refactor_box = IntVar()
        self.warning_box = IntVar()
        self.error_box = IntVar()
        self.fatal_box = IntVar()
        i = Checkbutton(check_frame,
                        text="Information",
                        fg=COLORS['(I)'],
                        variable=self.information_box,
                        command=self.refresh_msg_window)
        c = Checkbutton(check_frame,
                        text="Convention",
                        fg=COLORS['(C)'],
                        variable=self.convention_box,
                        command=self.refresh_msg_window)
        r = Checkbutton(check_frame,
                        text="Refactor",
                        fg=COLORS['(R)'],
                        variable=self.refactor_box,
                        command=self.refresh_msg_window)
        w = Checkbutton(check_frame,
                        text="Warning",
                        fg=COLORS['(W)'],
                        variable=self.warning_box,
                        command=self.refresh_msg_window)
        e = Checkbutton(check_frame,
                        text="Error",
                        fg=COLORS['(E)'],
                        variable=self.error_box,
                        command=self.refresh_msg_window)
        f = Checkbutton(check_frame,
                        text="Fatal",
                        fg=COLORS['(F)'],
                        variable=self.fatal_box,
                        command=self.refresh_msg_window)
        i.select()
        c.select()
        r.select()
        w.select()
        e.select()
        f.select()
        i.pack(side=LEFT)
        c.pack(side=LEFT)
        r.pack(side=LEFT)
        w.pack(side=LEFT)
        e.pack(side=LEFT)
        f.pack(side=LEFT)

        #check boxes
        self.box = StringVar()
        # XXX should be generated
        report = Radiobutton(radio_frame,
                             text="Report",
                             variable=self.box,
                             value="Report",
                             command=self.refresh_results_window)
        raw_met = Radiobutton(radio_frame,
                              text="Raw metrics",
                              variable=self.box,
                              value="Raw metrics",
                              command=self.refresh_results_window)
        dup = Radiobutton(radio_frame,
                          text="Duplication",
                          variable=self.box,
                          value="Duplication",
                          command=self.refresh_results_window)
        ext = Radiobutton(radio_frame,
                          text="External dependencies",
                          variable=self.box,
                          value="External dependencies",
                          command=self.refresh_results_window)
        stat = Radiobutton(radio_frame,
                           text="Statistics by type",
                           variable=self.box,
                           value="Statistics by type",
                           command=self.refresh_results_window)
        msg_cat = Radiobutton(radio_frame,
                              text="Messages by category",
                              variable=self.box,
                              value="Messages by category",
                              command=self.refresh_results_window)
        msg = Radiobutton(radio_frame,
                          text="Messages",
                          variable=self.box,
                          value="Messages",
                          command=self.refresh_results_window)
        source_file = Radiobutton(radio_frame,
                                  text="Source File",
                                  variable=self.box,
                                  value="Source File",
                                  command=self.refresh_results_window)
        report.select()
        report.grid(column=0, row=0, sticky=W)
        raw_met.grid(column=1, row=0, sticky=W)
        dup.grid(column=2, row=0, sticky=W)
        msg.grid(column=3, row=0, sticky=W)
        stat.grid(column=0, row=1, sticky=W)
        msg_cat.grid(column=1, row=1, sticky=W)
        ext.grid(column=2, row=1, sticky=W)
        source_file.grid(column=3, row=1, sticky=W)

        #dictionary for check boxes and associated error term
        self.msg_type_dict = {
            'I': lambda: self.information_box.get() == 1,
            'C': lambda: self.convention_box.get() == 1,
            'R': lambda: self.refactor_box.get() == 1,
            'E': lambda: self.error_box.get() == 1,
            'W': lambda: self.warning_box.get() == 1,
            'F': lambda: self.fatal_box.get() == 1
        }
        self.txt_module.focus_set()

    def select_recent_file(self, event):  # pylint: disable=unused-argument
        """adds the selected file in the history listbox to the Module box"""
        if not self.showhistory.size():
            return

        selected = self.showhistory.curselection()
        item = self.showhistory.get(selected)
        #update module
        self.txt_module.delete(0, END)
        self.txt_module.insert(0, item)

    def refresh_msg_window(self):
        """refresh the message window with current output"""
        #clear the window
        self.lb_messages.delete(0, END)
        self.visible_msgs = []
        for msg in self.msgs:
            if self.msg_type_dict.get(msg.C)():
                self.visible_msgs.append(msg)
                msg_str = convert_to_string(msg)
                self.lb_messages.insert(END, msg_str)
                fg_color = COLORS.get(msg_str[:3], 'black')
                self.lb_messages.itemconfigure(END, fg=fg_color)

    def refresh_results_window(self):
        """refresh the results window with current output"""
        #clear the window
        self.results.delete(0, END)
        try:
            for res in self.tabs[self.box.get()]:
                self.results.insert(END, res)
        except KeyError:
            pass

    def process_incoming(self):
        """process the incoming messages from running pylint"""
        while self.msg_queue.qsize():
            try:
                msg = self.msg_queue.get(0)
                if msg == "DONE":
                    self.report_stream.output_contents()
                    return False

                #adding message to list of msgs
                self.msgs.append(msg)

                #displaying msg if message type is selected in check box
                if self.msg_type_dict.get(msg.C)():
                    self.visible_msgs.append(msg)
                    msg_str = convert_to_string(msg)
                    self.lb_messages.insert(END, msg_str)
                    fg_color = COLORS.get(msg_str[:3], 'black')
                    self.lb_messages.itemconfigure(END, fg=fg_color)

            except six.moves.queue.Empty:
                pass
        return True

    def periodic_call(self):
        """determine when to unlock the run button"""
        if self.process_incoming():
            self.root.after(100, self.periodic_call)
        else:
            #enabling button so it can be run again
            self.btnRun.config(state=NORMAL)

    def mainloop(self):
        """launch the mainloop of the application"""
        self.root.mainloop()

    def quit(self, _=None):
        """quit the application"""
        self.root.quit()

    def halt(self):  # pylint: disable=no-self-use
        """program halt placeholder"""
        return

    def file_open(self, package=False, _=None):
        """launch a file browser"""
        if not package:
            filename = askopenfilename(parent=self.root,
                                       filetypes=[('pythonfiles', '*.py'),
                                                  ('allfiles', '*')],
                                       title='Select Module')
        else:
            filename = askdirectory(title="Select A Folder", mustexist=1)

        if filename == ():
            return

        self.txt_module.delete(0, END)
        self.txt_module.insert(0, filename)

    def update_filenames(self):
        """update the list of recent filenames"""
        filename = self.txt_module.get()
        if not filename:
            filename = os.getcwd()
        if filename + '\n' in self.filenames:
            index = self.filenames.index(filename + '\n')
            self.filenames.pop(index)

        #ensure only 10 most recent are stored
        if len(self.filenames) == 10:
            self.filenames.pop()
        self.filenames.insert(0, filename + '\n')

    def set_history_window(self):
        """update the history window with info from the history file"""
        #clear the window
        self.showhistory.delete(0, END)
        # keep the last 10 most recent files
        try:
            view_history = open(HOME + HISTORY, 'r')
            for hist in view_history.readlines():
                if hist not in self.filenames:
                    self.filenames.append(hist)
                self.showhistory.insert(END, hist.split('\n')[0])
            view_history.close()
        except IOError:
            # do nothing since history file will be created later
            return

    def run_lint(self, _=None):
        """launches pylint"""
        self.update_filenames()
        self.root.configure(cursor='watch')
        self.reporter = GUIReporter(self, output=self.report_stream)
        module = self.txt_module.get()
        if not module:
            module = os.getcwd()

        #cleaning up msgs and windows
        self.msgs = []
        self.visible_msgs = []
        self.lb_messages.delete(0, END)
        self.tabs = {}
        self.results.delete(0, END)
        self.btnRun.config(state=DISABLED)

        #setting up a worker thread to run pylint
        worker = Thread(target=lint_thread,
                        args=(
                            module,
                            self.reporter,
                            self,
                        ))
        self.periodic_call()
        worker.start()

        # Overwrite the .pylint-gui-history file with all the new recently added files
        # in order from filenames but only save last 10 files
        write_history = open(HOME + HISTORY, 'w')
        write_history.writelines(self.filenames)
        write_history.close()
        self.set_history_window()

        self.root.configure(cursor='')

    def show_sourcefile(self, event=None):  # pylint: disable=unused-argument
        selected = self.lb_messages.curselection()
        if not selected:
            return

        msg = self.visible_msgs[int(selected[0])]
        scroll = msg.line - 3
        if scroll < 0:
            scroll = 0

        self.tabs["Source File"] = open(msg.path, "r").readlines()
        self.box.set("Source File")
        self.refresh_results_window()
        self.results.yview(scroll)
        self.results.select_set(msg.line - 1)
Beispiel #11
0
    def __init__(self, root, *args, **kw):
        GUIDialog.__init__(self, master=root, *args, **kw)
        self.qom_type_var = root.qom_type_var

        self.title(_("Device Tree"))
        self.grid()

        self.columnconfigure(0, weight=1, minsize=300)
        self.columnconfigure(2, weight=1, minsize=100)
        self.rowconfigure(0, weight=1)

        geom = "+" + str(int(root.winfo_rootx())) \
             + "+" + str(int(root.winfo_rooty()))
        self.geometry(geom)

        self.focus()

        self.device_tree = dt = VarTreeview(self, selectmode="browse")
        dt["columns"] = "Macros"

        dt.heading("#0", text=_("Devices"))
        dt.heading("Macros", text=_("Macros"))

        dt.bind("<ButtonPress-1>", self.on_b1_press_dt)

        dt.grid(row=0, column=0, sticky="NEWS")

        add_scrollbars_native(self, dt)

        column_fr = Frame(self, borderwidth=0)
        column_fr.grid(row=0, column=2, rowspan=2, sticky="SEWN")
        column_fr.columnconfigure(0, weight=1)
        column_fr.rowconfigure(0, weight=1)
        column_fr.rowconfigure(1, weight=1, minsize=100)

        fr_at = VarLabelFrame(column_fr, text=_("Architecture filter"))
        fr_at.grid(row=0, column=0, sticky="SEWN")

        self.fr_qt = VarLabelFrame(column_fr, text=_("Select QOM type"))
        self.fr_qt.grid(row=1, column=0, sticky="SEWN")

        self.add_button = VarButton(column_fr,
                                    text=_("Select"),
                                    command=self.on_select_qom_type)
        self.add_button.grid(row=2, column=0, sticky="EW")
        self.add_button.config(state="disabled")

        qtype_dt = self.qtype_dt = qvd_get(
            root.mach.project.build_path,
            version=root.mach.project.target_version).qvc.device_tree

        arch_buttons = Frame(fr_at, borderwidth=0)
        arch_buttons.pack(fill="x")

        arch_buttons.columnconfigure(0, weight=1, minsize=60)
        arch_buttons.columnconfigure(1, weight=1, minsize=60)
        arch_buttons.columnconfigure(2, weight=1, minsize=60)

        bt_all_arches = VarButton(arch_buttons,
                                  text=_("All"),
                                  command=self.select_arches)
        bt_all_arches.grid(row=0, column=0, sticky="EW")

        bt_none_arches = VarButton(arch_buttons,
                                   text=_("None"),
                                   command=self.deselect_arches)
        bt_none_arches.grid(row=0, column=1, sticky="EW")

        bt_invert_arches = VarButton(arch_buttons,
                                     text=_("Invert"),
                                     command=self.invert_arches)
        bt_invert_arches.grid(row=0, column=2, sticky="EW")

        if not qtype_dt.arches:
            bt_all_arches.config(state="disabled")
            bt_none_arches.config(state="disabled")
            bt_invert_arches.config(state="disabled")

        arch_selector_outer = Frame(fr_at, borderwidth=0)
        arch_selector_outer.pack(fill="both", anchor="w")
        arch_selector, scrolltag = add_scrollbars_with_tags(
            arch_selector_outer, GUIFrame)

        ac = self.arches_checkbox = []
        for a in sorted(list(qtype_dt.arches)):
            v = IntVar()
            c = Checkbutton(arch_selector,
                text = a,
                variable = v,
                command = lambda arch = a, var = v: \
                    self.on_toggle_arch(arch, var)
            )

            c.pack(expand=1, anchor="w")
            c.bindtags((scrolltag, ) + c.bindtags())
            c.select()
            ac.append(c)

        # key: item
        # value: ItemDesc
        self.detached_items = {}
        self.all_items = {}

        self.disabled_arches = set()

        self.qom_create_tree("", qtype_dt.children)
Beispiel #12
0
class DrtGlueDemo(object):
    def __init__(self, examples):
        # Set up the main window.
        self._top = Tk()
        self._top.title('DRT Glue Demo')

        # Set up key bindings.
        self._init_bindings()

        # Initialize the fonts.self._error = None
        self._init_fonts(self._top)

        self._examples = examples
        self._readingCache = [None for example in examples]

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Set the data to None
        self._curExample = -1
        self._readings = []
        self._drs = None
        self._drsWidget = None
        self._error = None

        self._init_glue()

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_exampleListbox(self._top)
        self._init_readingListbox(self._top)
        self._init_canvas(self._top)

        # Resize callback
        self._canvas.bind('<Configure>', self._configure)

    #########################################
    ##  Initialization Helpers
    #########################################

    def _init_glue(self):
        tagger = RegexpTagger([
            ('^(David|Mary|John)$', 'NNP'),
            ('^(walks|sees|eats|chases|believes|gives|sleeps|chases|persuades|tries|seems|leaves)$',
             'VB'), ('^(go|order|vanish|find|approach)$', 'VB'),
            ('^(a)$', 'ex_quant'), ('^(every)$', 'univ_quant'),
            ('^(sandwich|man|dog|pizza|unicorn|cat|senator)$', 'NN'),
            ('^(big|gray|former)$', 'JJ'), ('^(him|himself)$', 'PRP')
        ])

        depparser = MaltParser(tagger=tagger)
        self._glue = DrtGlue(depparser=depparser, remove_duplicates=False)

    def _init_fonts(self, root):
        # See: <http://www.astro.washington.edu/owen/ROTKFolklore.html>
        self._sysfont = Font(font=Button()["font"])
        root.option_add("*Font", self._sysfont)

        # TWhat's our font size (default=same as sysfont)
        self._size = IntVar(root)
        self._size.set(self._sysfont.cget('size'))

        self._boldfont = Font(family='helvetica',
                              weight='bold',
                              size=self._size.get())
        self._font = Font(family='helvetica', size=self._size.get())
        if self._size.get() < 0: big = self._size.get() - 2
        else: big = self._size.get() + 2
        self._bigfont = Font(family='helvetica', weight='bold', size=big)

    def _init_exampleListbox(self, parent):
        self._exampleFrame = listframe = Frame(parent)
        self._exampleFrame.pack(fill='both', side='left', padx=2)
        self._exampleList_label = Label(self._exampleFrame,
                                        font=self._boldfont,
                                        text='Examples')
        self._exampleList_label.pack()
        self._exampleList = Listbox(self._exampleFrame,
                                    selectmode='single',
                                    relief='groove',
                                    background='white',
                                    foreground='#909090',
                                    font=self._font,
                                    selectforeground='#004040',
                                    selectbackground='#c0f0c0')

        self._exampleList.pack(side='right', fill='both', expand=1)

        for example in self._examples:
            self._exampleList.insert('end', ('  %s' % example))
        self._exampleList.config(height=min(len(self._examples), 25), width=40)

        # Add a scrollbar if there are more than 25 examples.
        if len(self._examples) > 25:
            listscroll = Scrollbar(self._exampleFrame, orient='vertical')
            self._exampleList.config(yscrollcommand=listscroll.set)
            listscroll.config(command=self._exampleList.yview)
            listscroll.pack(side='left', fill='y')

        # If they select a example, apply it.
        self._exampleList.bind('<<ListboxSelect>>', self._exampleList_select)

    def _init_readingListbox(self, parent):
        self._readingFrame = listframe = Frame(parent)
        self._readingFrame.pack(fill='both', side='left', padx=2)
        self._readingList_label = Label(self._readingFrame,
                                        font=self._boldfont,
                                        text='Readings')
        self._readingList_label.pack()
        self._readingList = Listbox(self._readingFrame,
                                    selectmode='single',
                                    relief='groove',
                                    background='white',
                                    foreground='#909090',
                                    font=self._font,
                                    selectforeground='#004040',
                                    selectbackground='#c0f0c0')

        self._readingList.pack(side='right', fill='both', expand=1)

        # Add a scrollbar if there are more than 25 examples.
        listscroll = Scrollbar(self._readingFrame, orient='vertical')
        self._readingList.config(yscrollcommand=listscroll.set)
        listscroll.config(command=self._readingList.yview)
        listscroll.pack(side='right', fill='y')

        self._populate_readingListbox()

    def _populate_readingListbox(self):
        # Populate the listbox with integers
        self._readingList.delete(0, 'end')
        for i in range(len(self._readings)):
            self._readingList.insert('end', ('  %s' % (i + 1)))
        self._readingList.config(height=min(len(self._readings), 25), width=5)

        # If they select a example, apply it.
        self._readingList.bind('<<ListboxSelect>>', self._readingList_select)

    def _init_bindings(self):
        # Key bindings are a good thing.
        self._top.bind('<Control-q>', self.destroy)
        self._top.bind('<Control-x>', self.destroy)
        self._top.bind('<Escape>', self.destroy)
        self._top.bind('n', self.next)
        self._top.bind('<space>', self.next)
        self._top.bind('p', self.prev)
        self._top.bind('<BackSpace>', self.prev)

    def _init_buttons(self, parent):
        # Set up the frames.
        self._buttonframe = buttonframe = Frame(parent)
        buttonframe.pack(fill='none', side='bottom', padx=3, pady=2)
        Button(
            buttonframe,
            text='Prev',
            background='#90c0d0',
            foreground='black',
            command=self.prev,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Next',
            background='#90c0d0',
            foreground='black',
            command=self.next,
        ).pack(side='left')

    def _configure(self, event):
        self._autostep = 0
        (x1, y1, x2, y2) = self._cframe.scrollregion()
        y2 = event.height - 6
        self._canvas['scrollregion'] = '%d %d %d %d' % (x1, y1, x2, y2)
        self._redraw()

    def _init_canvas(self, parent):
        self._cframe = CanvasFrame(
            parent,
            background='white',
            #width=525, height=250,
            closeenough=10,
            border=2,
            relief='sunken')
        self._cframe.pack(expand=1, fill='both', side='top', pady=2)
        canvas = self._canvas = self._cframe.canvas()

        # Initially, there's no tree or text
        self._tree = None
        self._textwidgets = []
        self._textline = None

    def _init_menubar(self, parent):
        menubar = Menu(parent)

        filemenu = Menu(menubar, tearoff=0)
        filemenu.add_command(label='Exit',
                             underline=1,
                             command=self.destroy,
                             accelerator='q')
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        actionmenu = Menu(menubar, tearoff=0)
        actionmenu.add_command(label='Next',
                               underline=0,
                               command=self.next,
                               accelerator='n, Space')
        actionmenu.add_command(label='Previous',
                               underline=0,
                               command=self.prev,
                               accelerator='p, Backspace')
        menubar.add_cascade(label='Action', underline=0, menu=actionmenu)

        optionmenu = Menu(menubar, tearoff=0)
        optionmenu.add_checkbutton(label='Remove Duplicates',
                                   underline=0,
                                   variable=self._glue.remove_duplicates,
                                   command=self._toggle_remove_duplicates,
                                   accelerator='r')
        menubar.add_cascade(label='Options', underline=0, menu=optionmenu)

        viewmenu = Menu(menubar, tearoff=0)
        viewmenu.add_radiobutton(label='Tiny',
                                 variable=self._size,
                                 underline=0,
                                 value=10,
                                 command=self.resize)
        viewmenu.add_radiobutton(label='Small',
                                 variable=self._size,
                                 underline=0,
                                 value=12,
                                 command=self.resize)
        viewmenu.add_radiobutton(label='Medium',
                                 variable=self._size,
                                 underline=0,
                                 value=14,
                                 command=self.resize)
        viewmenu.add_radiobutton(label='Large',
                                 variable=self._size,
                                 underline=0,
                                 value=18,
                                 command=self.resize)
        viewmenu.add_radiobutton(label='Huge',
                                 variable=self._size,
                                 underline=0,
                                 value=24,
                                 command=self.resize)
        menubar.add_cascade(label='View', underline=0, menu=viewmenu)

        helpmenu = Menu(menubar, tearoff=0)
        helpmenu.add_command(label='About', underline=0, command=self.about)
        menubar.add_cascade(label='Help', underline=0, menu=helpmenu)

        parent.config(menu=menubar)

    #########################################
    ##  Main draw procedure
    #########################################

    def _redraw(self):
        canvas = self._canvas

        # Delete the old DRS, widgets, etc.
        if self._drsWidget is not None:
            self._drsWidget.clear()

        if self._drs:
            self._drsWidget = DrsWidget(self._canvas, self._drs)
            self._drsWidget.draw()

        if self._error:
            self._drsWidget = DrsWidget(self._canvas, self._error)
            self._drsWidget.draw()

    #########################################
    ##  Button Callbacks
    #########################################

    def destroy(self, *e):
        self._autostep = 0
        if self._top is None: return
        self._top.destroy()
        self._top = None

    def prev(self, *e):
        selection = self._readingList.curselection()
        readingListSize = self._readingList.size()

        # there are readings
        if readingListSize > 0:
            # if one reading is currently selected
            if len(selection) == 1:
                index = int(selection[0])

                # if it's on (or before) the first item
                if index <= 0:
                    self._select_previous_example()
                else:
                    self._readingList_store_selection(index - 1)

            else:
                #select its first reading
                self._readingList_store_selection(readingListSize - 1)

        else:
            self._select_previous_example()

    def _select_previous_example(self):
        #if the current example is not the first example
        if self._curExample > 0:
            self._exampleList_store_selection(self._curExample - 1)
        else:
            #go to the last example
            self._exampleList_store_selection(len(self._examples) - 1)

    def next(self, *e):
        selection = self._readingList.curselection()
        readingListSize = self._readingList.size()

        # if there are readings
        if readingListSize > 0:
            # if one reading is currently selected
            if len(selection) == 1:
                index = int(selection[0])

                # if it's on (or past) the last item
                if index >= (readingListSize - 1):
                    self._select_next_example()
                else:
                    self._readingList_store_selection(index + 1)

            else:
                #select its first reading
                self._readingList_store_selection(0)

        else:
            self._select_next_example()

    def _select_next_example(self):
        #if the current example is not the last example
        if self._curExample < len(self._examples) - 1:
            self._exampleList_store_selection(self._curExample + 1)
        else:
            #go to the first example
            self._exampleList_store_selection(0)

    def about(self, *e):
        ABOUT = (
            "NLTK Discourse Representation Theory (DRT) Glue Semantics Demo\n"
            + "Written by Daniel H. Garrette")
        TITLE = 'About: NLTK DRT Glue Demo'
        try:
            from six.moves.tkinter_messagebox import Message
            Message(message=ABOUT, title=TITLE).show()
        except:
            ShowText(self._top, TITLE, ABOUT)

    def postscript(self, *e):
        self._autostep = 0
        self._cframe.print_to_file()

    def mainloop(self, *args, **kwargs):
        """
        Enter the Tkinter mainloop.  This function must be called if
        this demo is created from a non-interactive program (e.g.
        from a secript); otherwise, the demo will close as soon as
        the script completes.
        """
        if in_idle(): return
        self._top.mainloop(*args, **kwargs)

    def resize(self, size=None):
        if size is not None: self._size.set(size)
        size = self._size.get()
        self._font.configure(size=-(abs(size)))
        self._boldfont.configure(size=-(abs(size)))
        self._sysfont.configure(size=-(abs(size)))
        self._bigfont.configure(size=-(abs(size + 2)))
        self._redraw()

    def _toggle_remove_duplicates(self):
        self._glue.remove_duplicates = not self._glue.remove_duplicates

        self._exampleList.selection_clear(0, 'end')
        self._readings = []
        self._populate_readingListbox()
        self._readingCache = [None for ex in self._examples]
        self._curExample = -1
        self._error = None

        self._drs = None
        self._redraw()

    def _exampleList_select(self, event):
        selection = self._exampleList.curselection()
        if len(selection) != 1: return
        self._exampleList_store_selection(int(selection[0]))

    def _exampleList_store_selection(self, index):
        self._curExample = index
        example = self._examples[index]

        self._exampleList.selection_clear(0, 'end')
        if example:
            cache = self._readingCache[index]
            if cache:
                if isinstance(cache, list):
                    self._readings = cache
                    self._error = None
                else:
                    self._readings = []
                    self._error = cache
            else:
                try:
                    self._readings = self._glue.parse_to_meaning(example)
                    self._error = None
                    self._readingCache[index] = self._readings
                except Exception as e:
                    self._readings = []
                    self._error = DrtVariableExpression(
                        Variable('Error: ' + str(e)))
                    self._readingCache[index] = self._error

                    #add a star to the end of the example
                    self._exampleList.delete(index)
                    self._exampleList.insert(index, ('  %s *' % example))
                    self._exampleList.config(height=min(
                        len(self._examples), 25),
                                             width=40)

            self._populate_readingListbox()

            self._exampleList.selection_set(index)

            self._drs = None
            self._redraw()

    def _readingList_select(self, event):
        selection = self._readingList.curselection()
        if len(selection) != 1: return
        self._readingList_store_selection(int(selection[0]))

    def _readingList_store_selection(self, index):
        reading = self._readings[index]

        self._readingList.selection_clear(0, 'end')
        if reading:
            self._readingList.selection_set(index)

            self._drs = reading.simplify().normalize().resolve_anaphora()

            self._redraw()
Beispiel #13
0
class CanvasDnD(Canvas):
    unbind = unbind

    def __init__(self,
                 master,
                 id_priority_sort_function=lambda ids: ids,
                 mesh_step=20,
                 **kw):
        # override some defaults
        for arg, val in [("width", 100), ("height", 100), ("relief", RIDGE),
                         ("background", "white"), ("borderwidth", 1)]:
            kw.setdefault(arg, val)

        Canvas.__init__(self, master, **kw)

        self.align = False
        self.mesh_step = IntVar(value=mesh_step)
        self._state = None
        self.off = None
        self.bind("<ButtonPress-1>", self.down, "+")
        self.bind("<ButtonRelease-1>", self.up, "+")
        self.bind("<ButtonPress-3>", self.b3down, "+")
        self.bind("<ButtonRelease-3>", self.b3up, "+")
        self.bind("<Motion>", self.motion, "+")

        self.id_priority_sort_function = id_priority_sort_function

    # backward compatibility properties
    @property
    def dragging(self):
        return self._state is dragging

    def down(self, event):
        x, y = event.widget.canvasx(event.x), event.widget.canvasy(event.y)

        touched = self.find_overlapping(x - 1, y - 1, x + 1, y + 1)
        touched = [t for t in touched if ("DnD" in self.gettags(t))]

        if not touched:
            return

        touched = self.id_priority_sort_function(touched)
        self.dnd_dragged = touched[0]

        offset = event.widget.coords(self.dnd_dragged)
        self.off = (x - offset[0], y - offset[1])

        #print str((x,y)) + " - " + str(self.off)

        self._state = dragging
        self.event_generate('<<DnDDown>>')

    def motion(self, event):
        x, y = event.x, event.y

        if self._state is begin_drag_all:
            # if user moved mouse far enough then begin dragging of all
            ox, oy = self.off
            # Use Manchester metric to speed up the check
            dx, dy = abs(x - ox), abs(y - oy)
            if dx + dy > DRAG_GAP:
                self._state = dragging_all
                self.scan_mark(ox, oy)
                self.master.config(cursor="fleur")
                # Dragging of all items is just actually started
                self.event_generate("<<DnDAll>>")

        if self._state is dragging_all:
            self.scan_dragto(x, y, gain=1)
            self.scan_mark(x, y)
            self.event_generate("<<DnDAllMoved>>")
            return
        elif self._state is not dragging:
            return

        self.master.config(cursor="fleur")

        xy = self.canvasx(event.x), self.canvasy(event.y)
        points = self.coords(self.dnd_dragged)

        offset = self.off

        if self.align:
            new_pos = (
                xy[0] - offset[0],
                xy[1] - offset[1],
            )

            m = self.mesh_step.get()
            aligned_pos = (int(new_pos[0] / m) * m, int(new_pos[1] / m) * m)

            align_gain = (aligned_pos[0] - new_pos[0],
                          aligned_pos[1] - new_pos[1])
        else:
            align_gain = (0, 0)

        dxy = (xy[0] - (points[0] + offset[0]) + align_gain[0],
               xy[1] - (points[1] + offset[1]) + align_gain[1])

        #print str(points) + " - " + str(self.off)

        tags = self.gettags(self.dnd_dragged)

        if "fixed_x" not in tags:
            for idx in xrange(0, len(points), 2):
                points[idx] = dxy[0] + points[idx]

        if "fixed_y" not in tags:
            for idx in xrange(1, len(points), 2):
                points[idx] = dxy[1] + points[idx]

        #print points

        self.coords(*([self.dnd_dragged] + points))

        self.event_generate('<<DnDMoved>>')

    def up(self, event):
        if self._state is dragging:
            self.master.config(cursor="")
            self._state = None
            self.off = None
            self.event_generate('<<DnDUp>>')
            """ Right after event. Listeners should be able to get which id
            is not dragged now. """
            del self.dnd_dragged

    def b3down(self, event):
        if self._state is not None:
            return  # User already using mouse for something

        # prepare for dragging of all
        self.off = event.x, event.y
        self._state = begin_drag_all

        # Dragging all items sequence begun
        self.event_generate("<<DnDAllDown>>")

    def b3up(self, _):
        if self._state in (dragging_all, begin_drag_all):
            # reset dragging of all
            self.master.config(cursor="")
            # Dragging all items sequence finished
            self.event_generate("<<DnDAllUp>>")
            # Reset _state after the event. So, user may distinguish was a
            # dragging took place.
            self._state = None
    def __init__(self, *args, **kwargs):
        TkToolWindow.__init__(self, *args, **kwargs)
        Observable.__init__(self)

        self.__serialmap = None

        # Temporarily
        self.inst = Inst()
        # End Temporarily

        #window = self.tk_object
        tooltab = Frame(self._tool_tabs)
        self._tool_tabs.add(tooltab, text='SPI')
        #tooltab.pack(expand='yes', fill='x')

        # Group OPEN
        open_group = Group(tooltab)
        open_group.name = 'Open Device'
        open_group.pack(side='left', fill='y', expand='yes')

        self.__dev_combo = dev_combo = Combobox(open_group,
                                                value=[],
                                                takefocus=1,
                                                stat='readonly',
                                                width=12)
        dev_combo.bind('<<ComboboxSelected>>', self._on_dev_change)
        self.__current_serialno = None
        dev_combo.pack(side='top')

        self.__is_opened = IntVar(0)
        self.__open_check = open_check = Checkbutton(
            open_group,
            text='Open',
            variable=self.__is_opened,
            command=self._on_open_click)
        open_check.pack(expand='yes', fill='y', side='top')
        # End Group Open

        # Group Parameters
        param_group = Group(tooltab)
        param_group.name = 'Parameters'
        param_group.pack(side='left')
        Button(param_group, text='Configure',
               command=self._on_param_change).pack(side='bottom')

        param_frame = Frame(param_group)
        param_frame.pack()

        self.__CPOL = CPOL = IntVar(0)
        self.__CPHA = CPHA = IntVar(0)
        Checkbutton(param_frame, text='CPOL', variable=CPOL).grid(row=0,
                                                                  column=0)
        Checkbutton(param_frame, text='CPHA', variable=CPHA).grid(row=1,
                                                                  column=0)

        self.__baud_combo = baud_combo = Combobox(param_frame,
                                                  value=[],
                                                  takefocus=1,
                                                  stat='readonly',
                                                  width=8)
        baud_combo.grid(row=0, column=1, columnspan=2)

        self.__read_timeout_str = r_timeout = StringVar()
        self.__write_timeout_str = w_timeout = StringVar()
        Entry(param_frame, textvariable=r_timeout, width=5).grid(row=1,
                                                                 column=1)
        Entry(param_frame, textvariable=w_timeout, width=5).grid(row=1,
                                                                 column=2)
        # End Group Parameters

        # Write Group
        write_group = Group(tooltab)
        write_group.name = 'Write'
        write_group.pack(side='left', fill='y', expand='yes')

        self.__writebuf = writebuf = StringVar()
        Entry(write_group, textvariable=writebuf).pack()
        Button(write_group, text='Write', command=self._on_write_click).pack()
        # End Write Group

        self._make_window_manager_tab()

        # To Do: a driver group for loading specified spi bus driver
        converter = USBSPIConverter()
        converter.add_observer(self)
        self.add_observer(converter)
class USBSPIWindow(TkToolWindow, Observable):
    '''A control panel for USB to SPI converter.'''
    def __init__(self, *args, **kwargs):
        TkToolWindow.__init__(self, *args, **kwargs)
        Observable.__init__(self)

        self.__serialmap = None

        # Temporarily
        self.inst = Inst()
        # End Temporarily

        #window = self.tk_object
        tooltab = Frame(self._tool_tabs)
        self._tool_tabs.add(tooltab, text='SPI')
        #tooltab.pack(expand='yes', fill='x')

        # Group OPEN
        open_group = Group(tooltab)
        open_group.name = 'Open Device'
        open_group.pack(side='left', fill='y', expand='yes')

        self.__dev_combo = dev_combo = Combobox(open_group,
                                                value=[],
                                                takefocus=1,
                                                stat='readonly',
                                                width=12)
        dev_combo.bind('<<ComboboxSelected>>', self._on_dev_change)
        self.__current_serialno = None
        dev_combo.pack(side='top')

        self.__is_opened = IntVar(0)
        self.__open_check = open_check = Checkbutton(
            open_group,
            text='Open',
            variable=self.__is_opened,
            command=self._on_open_click)
        open_check.pack(expand='yes', fill='y', side='top')
        # End Group Open

        # Group Parameters
        param_group = Group(tooltab)
        param_group.name = 'Parameters'
        param_group.pack(side='left')
        Button(param_group, text='Configure',
               command=self._on_param_change).pack(side='bottom')

        param_frame = Frame(param_group)
        param_frame.pack()

        self.__CPOL = CPOL = IntVar(0)
        self.__CPHA = CPHA = IntVar(0)
        Checkbutton(param_frame, text='CPOL', variable=CPOL).grid(row=0,
                                                                  column=0)
        Checkbutton(param_frame, text='CPHA', variable=CPHA).grid(row=1,
                                                                  column=0)

        self.__baud_combo = baud_combo = Combobox(param_frame,
                                                  value=[],
                                                  takefocus=1,
                                                  stat='readonly',
                                                  width=8)
        baud_combo.grid(row=0, column=1, columnspan=2)

        self.__read_timeout_str = r_timeout = StringVar()
        self.__write_timeout_str = w_timeout = StringVar()
        Entry(param_frame, textvariable=r_timeout, width=5).grid(row=1,
                                                                 column=1)
        Entry(param_frame, textvariable=w_timeout, width=5).grid(row=1,
                                                                 column=2)
        # End Group Parameters

        # Write Group
        write_group = Group(tooltab)
        write_group.name = 'Write'
        write_group.pack(side='left', fill='y', expand='yes')

        self.__writebuf = writebuf = StringVar()
        Entry(write_group, textvariable=writebuf).pack()
        Button(write_group, text='Write', command=self._on_write_click).pack()
        # End Write Group

        self._make_window_manager_tab()

        # To Do: a driver group for loading specified spi bus driver
        converter = USBSPIConverter()
        converter.add_observer(self)
        self.add_observer(converter)

    def _on_dev_change(self,
                       event):  # User selects another device via dev_combo.
        '''Called when user selects another device via dev_combo.'''
        dev_combo = self.__dev_combo
        self.__current_serialno = serialno = dev_combo.get()
        print(serialno)
        self.__is_opened.set(self.__serialmap[serialno].is_opened)
        print(self.__serialmap[serialno].is_opened)
        self.__baud_combo['values'] = self.__serialmap[serialno].baudrate_range

    def _on_open_click(self):
        open_or_close = self.__is_opened.get()
        serialno = self.__dev_combo.get()

        with code_printer():
            if open_or_close:
                self.open_device(serialno)
            else:
                self.close_device(serialno)

    @WaveSynScriptAPI
    def open_device(self, serial_number):
        self.notify_observers(
            CommandSlot(command='open', args=(serial_number, True)))

    @WaveSynScriptAPI
    def close_device(self, serial_number):
        self.notify_observers(
            CommandSlot(command='open', args=(serial_number, False)))

    def _on_param_change(self):
        serialno = self.__dev_combo.get()
        baudrate = int(self.__baud_combo.get())
        CPOL = self.__CPOL.get()
        CPHA = self.__CPHA.get()
        read_timeout = int(self.__read_timeout_str.get())
        write_timeout = int(self.__write_timeout_str.get())

        kwargs = {}
        kwargs['serial_number'] = serialno
        kwargs['is_master'] = True
        kwargs['baudrate'] = baudrate
        kwargs['CPHA'] = CPHA
        kwargs['CPOL'] = CPOL
        kwargs['read_timeout'] = read_timeout
        kwargs['write_timeout'] = write_timeout

        with code_printer():
            self.configure_device(**kwargs)

    @WaveSynScriptAPI
    def configure_device(self, serial_number, is_master, baudrate, CPHA, CPOL,
                         read_timeout, write_timeout):
        self.notify_observers(
            CommandSlot(command='config',
                        args=(serial_number, is_master, baudrate, CPHA, CPOL,
                              read_timeout, write_timeout)))

    def _on_write_click(self):
        serialno = self.__dev_combo.get()
        data = self.__writebuf.get()
        if len(data) % 2 != 0:
            data += '0'

        data_list = [
            int(data[(k * 2):(k * 2 + 2)], base=16)
            for k in range(len(data) // 2)
        ]
        with code_printer():
            self.write_bytes(serial_number=serialno, data=data_list)

    @WaveSynScriptAPI
    def write_bytes(self, serial_number, data):
        length = len(data)
        buf = (wintypes.BYTE * length)()
        for index, d in enumerate(data):
            if d > 255:
                raise ValueError('Value of bytes should less than 256.')
            buf[index] = d
        self.notify_observers(
            CommandSlot(command='write', args=(serial_number, buf)))

    def update(
            self,
            serialmap):  # Notice: tk_object also has a method named "update".
        '''Called when the underlying USBSPI class catches an USB change event.'''
        # print(serialmap)
        dev_combo = self.__dev_combo
        current_text = dev_combo.get()
        try:
            current_dev = serialmap[current_text]
            current_index = current_dev.handle
        except KeyError:
            current_index = -1
        dev_combo['values'] = list(iterkeys(serialmap))

        if current_index == -1:  # which means the current selected device has been plugged out.
            dev_combo.set('')
        else:
            dev_combo.current(current_index)
            dev_info = serialmap[current_text]
            self.__CPOL.set(dev_info.CPOL)
            self.__CPHA.set(dev_info.CPHA)
            self.__baud_combo.current(
                current_dev.baudrate_range.index(dev_info.baudrate))
            self.__read_timeout_str.set(str(dev_info.read_timeout))
            self.__write_timeout_str.set(str(dev_info.write_timeout))

        self.__serialmap = serialmap

    @staticmethod
    def to_bytes(integer):
        if integer < 0:
            raise ValueError('Integer should be non-negative.')
        byte_list = []
        while True:
            byte = integer & 0xFF
            byte_list.insert(0, byte)
            integer >>= 8
            if integer == 0:
                break
        return byte_list
Beispiel #16
0
 def get(self):
     h = IntVar.get(self)
     return ref_objects[h]
Beispiel #17
0
    def __init__(self, project=None):
        GUITk.__init__(self, wait_msec=1)

        for signame in ["qvc_dirtied", "qvd_failed", "qvc_available"]:
            s = CoSignal()
            s.attach(self.signal_dispatcher)
            setattr(self, "sig_" + signame, s)

        self.title_suffix = _("Qemu device creator GUI")
        self.title_suffix.trace_variable("w", self.__on_title_suffix_write__)

        self.title_not_saved_asterisk = StringVar()
        self.title_not_saved_asterisk.trace_variable(
            "w", self.__on_title_suffix_write__)
        self.saved_operation = None

        self.var_title = StringVar()
        self.title(self.var_title)

        # Hot keys, accelerators
        self.hk = hotkeys = HotKey(self)
        hotkeys.add_bindings([
            HotKeyBinding(
                self.invert_history_window,
                key_code=43,
                description=_("If editing history window is hidden then \
show it else hide it."),
                symbol="H"),
            HotKeyBinding(self.on_load,
                          key_code=32,
                          description=_("Load project from file."),
                          symbol="O"),
            HotKeyBinding(self.on_new_project,
                          key_code=57,
                          description=_("Create new project."),
                          symbol="N"),
            HotKeyBinding(self.on_add_description,
                          key_code=40,
                          description=_("Add description to the project"),
                          symbol="D"),
            HotKeyBinding(self.on_set_qemu_build_path,
                          key_code=56,
                          description=_("Set Qemu build path for the project"),
                          symbol="B"),
            HotKeyBinding(
                self.on_sel_tgt_qemu_version,
                key_code=28,
                description=_("Select target Qemu version for the project"),
                symbol="T"),
            HotKeyBinding(self.on_generate,
                          key_code=42,
                          description=_("Launch code generation"),
                          symbol="G"),
            HotKeyBinding(self.on_delete,
                          key_code=24,
                          description=_("Shutdown the application."),
                          symbol="Q"),
            HotKeyBinding(self.undo,
                          key_code=52,
                          description=_("Revert previous editing."),
                          symbol="Z"),
            HotKeyBinding(self.redo,
                          key_code=29,
                          description=_("Make reverted editing again."),
                          symbol="Y"),
            HotKeyBinding(self.on_save,
                          key_code=39,
                          description=_("Save project."),
                          symbol="S"),
            HotKeyBinding(self.on_reload,
                          key_code=27,
                          description=_("Reload current project from file."),
                          symbol="R")
        ])

        # see `set_user_settings`
        self._user_settings = None

        # Menu bar
        menubar = VarMenu(self)

        self.filemenu = filemenu = VarMenu(menubar, tearoff=False)
        filemenu.add_command(label=_("Add description"),
                             command=self.on_add_description,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_add_description))
        filemenu.add_command(label=_("Set Qemu build path"),
                             command=self.on_set_qemu_build_path,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_set_qemu_build_path))
        filemenu.add_command(label=_("Select target Qemu version"),
                             command=self.on_sel_tgt_qemu_version,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_sel_tgt_qemu_version))
        filemenu.add_command(label=_("Generate"),
                             command=self.on_generate,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_generate))
        filemenu.add_separator()
        filemenu.add_command(label=_("New project"),
                             command=self.on_new_project,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_new_project)),
        filemenu.add_command(label=_("Save"),
                             command=self.on_save,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_save)),
        filemenu.add_command(label=_("Save project as..."),
                             command=self.on_save_as)
        filemenu.add_command(label=_("Load"),
                             command=self.on_load,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_load)),
        self.reload_idx = filemenu.count
        filemenu.add_command(label=_("Reload"),
                             command=self.on_reload,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_reload)),
        self.recentmenu = recentmenu = VarMenu(filemenu, tearoff=False)
        filemenu.add_cascade(
            label=_("Recent projects"),
            menu=recentmenu,
            state=DISABLED  # a user settings instance is required
        )

        filemenu.add_separator()
        filemenu.add_command(label=_("Quit"),
                             command=self.quit,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_delete))
        menubar.add_cascade(label=_("File"), menu=filemenu)

        self.editmenu = editmenu = VarMenu(menubar, tearoff=False)
        editmenu.add_command(label=_("Undo"),
                             command=self.undo,
                             accelerator=hotkeys.get_keycode_string(self.undo))
        self.undo_idx = editmenu.count - 1

        editmenu.add_command(label=_("Redo"),
                             command=self.redo,
                             accelerator=hotkeys.get_keycode_string(self.redo))
        self.redo_idx = editmenu.count - 1

        editmenu.add_separator()

        editmenu.add_command(label=_("Rebuild Cache"),
                             command=self.rebuild_cache,
                             accelerator=hotkeys.get_keycode_string(
                                 self.rebuild_cache))

        editmenu.add_separator()

        v = self.var_history_window = BooleanVar()
        v.set(False)

        self.__on_var_history_window = v.trace_variable(
            "w", self.__on_var_history_window__)

        editmenu.add_checkbutton(label=_("Editing history window"),
                                 variable=v,
                                 accelerator=hotkeys.get_keycode_string(
                                     self.invert_history_window))

        menubar.add_cascade(label=_("Edit"), menu=editmenu)

        self.optionsmenu = optionsmenu = VarMenu(menubar, tearoff=False)

        v = self.var_schedule_generation = BooleanVar()
        v.set(False)

        self.__on_var_schedule_generation = v.trace_variable(
            "w", self.__on_var_schedule_generation__)

        optionsmenu.add_checkbutton(
            label=_("Schedule generation after cache loading"), variable=v)

        v = self.var_gen_chunk_graphs = BooleanVar()
        v.set(False)

        self.__on_var_gen_chunk_graphs = v.trace_variable(
            "w", self.__on_var_gen_chunk_graphs__)

        optionsmenu.add_checkbutton(label=_("Generate chunk graphs"),
                                    variable=v)

        menubar.add_cascade(label=_("Options"), menu=optionsmenu)

        self.config(menu=menubar)

        # Widget layout
        self.grid()
        self.grid_columnconfigure(0, weight=1)
        self.grid_rowconfigure(0, weight=1)

        # Status bar
        self.grid_rowconfigure(1, weight=0)
        self.sb = sb = Statusbar(self)
        sb.grid(row=1, column=0, sticky="NEWS")

        # Target Qemu version in the status bar
        self._target_qemu = Variable(None)

        # This complicated scheme is required because the status must also
        # be updated on language change.
        @as_variable(self._target_qemu, _("No target"), _("Target Qemu: %s"))
        def var_target_qemu(target, no_target, target_qemu):
            if target is None:
                return no_target
            else:
                return target_qemu % target

        sb.left(var_target_qemu)

        # QEMU build path displaying
        self.var_qemu_build_path = StringVar()
        sb.left(self.var_qemu_build_path)

        # Task counters in status bar
        self.var_tasks = vt = IntVar()
        self.var_callers = vc = IntVar()
        self.var_active_tasks = vat = IntVar()
        self.var_finished_tasks = vft = IntVar()
        sb.right(_("Background tasks: "))
        sb.right(FormatVar(value="%u") % vt, fg="red")
        sb.right(FormatVar(value="%u") % vc, fg="orange")
        sb.right(FormatVar(value="%u") % vat)
        sb.right(FormatVar(value="%u") % vft, fg="grey")

        self.task_manager.watch_activated(self.__on_task_state_changed)
        self.task_manager.watch_finished(self.__on_task_state_changed)
        self.task_manager.watch_failed(self.__on_task_state_changed)
        self.task_manager.watch_removed(self.__on_task_state_changed)
        self.signal_dispatcher.watch_failed(self.__on_listener_failed)

        self.protocol("WM_DELETE_WINDOW", self.on_delete)

        self.set_project(GUIProject() if project is None else project)

        self.__update_title__()
        self.__check_saved_asterisk__()

        self.qsig_watch("qvc_available", self.__on_qvc_available)
Beispiel #18
0
            for col in kw["columns"]:
                self.column(col, stretch = False)

    tv = TestTV(root)
    tv.grid(row = 0, column = 0, sticky = "NEWS")

    from six.moves.tkinter import (
        BooleanVar,
        IntVar,
        DoubleVar
    )

    sv = StringVar(value = "xxx...")
    bv = BooleanVar(value = True)
    iv = IntVar(value = 0)
    dv = DoubleVar(value = 1.0)

    tv.insert("", 0, values = [sv, bv, iv, dv])
    tv.insert("", 1, values = [bv, iv, dv, sv])
    tv.insert("", 2, values = [iv, dv, sv, bv])
    tv.insert("", 3, values = [dv, sv, bv, iv])

    def update():
        s = sv.get()
        s = s[-1] + s[:-1]
        sv.set(s)
        bv.set(not bv.get())
        iv.set(iv.get() + 1)
        dv.set(dv.get() + 0.1)
Beispiel #19
0
class CanvasDnD(GUIFrame):
    def __init__(self, master,
            id_priority_sort_function = lambda ids : ids,
            mesh_step = 20
        ):

        GUIFrame.__init__ (self, master)
        self.canvas = Canvas (self, 
            width = 100, # default width
            height = 100, # default height
            relief = RIDGE,
            background = "white",
            borderwidth = 1
        )

        self.canvas.pack(expand = 1, fill = BOTH)

        self.align = False
        self.mesh_step = IntVar(value = mesh_step)
        self.dragging = False
        self.off = None
        self.canvas.bind("<ButtonPress-1>", self.down, "+")
        self.canvas.bind("<ButtonRelease-1>", self.up, "+")
        self.canvas.bind("<Motion>", self.motion, "+")

        self.id_priority_sort_function = id_priority_sort_function

    def down(self, event):
        x, y = event.widget.canvasx(event.x), event.widget.canvasy(event.y)

        touched = self.canvas.find_overlapping(x - 1, y - 1, x + 1, y + 1)
        touched = [ t for t in touched if ("DnD" in self.canvas.gettags(t)) ]

        if not touched:
            return

        touched = self.id_priority_sort_function(touched)
        self.dnd_dragged = touched[0]

        offset = event.widget.coords(self.dnd_dragged)
        self.off = (x - offset[0], y - offset[1])

        #print str((x,y)) + " - " + str(self.off)

        self.dragging = True
        self.event_generate('<<DnDDown>>')

    def motion(self, event):
        if not self.dragging:
            return

        self.master.config(cursor = "fleur")
        c = self.canvas

        xy = c.canvasx(event.x), c.canvasy(event.y)
        points = c.coords(self.dnd_dragged)

        offset = self.off

        if self.align:
            new_pos = (
                xy[0] - offset[0],
                xy[1] - offset[1],
            )

            m = self.mesh_step.get()
            aligned_pos = (
                int(new_pos[0] / m) * m,
                int(new_pos[1] / m) * m
            )

            align_gain = (
                aligned_pos[0] - new_pos[0],
                aligned_pos[1] - new_pos[1]
            )
        else:
            align_gain = (0, 0)

        dxy = (
            xy[0] - (points[0] + offset[0]) + align_gain[0],
            xy[1] - (points[1] + offset[1]) + align_gain[1]
        )

        #print str(points) + " - " + str(self.off)

        tags = c.gettags(self.dnd_dragged)

        if "fixed_x" not in tags:
            for idx in xrange(0, len(points), 2):
                points[idx] = dxy[0] + points[idx]

        if "fixed_y" not in tags:
            for idx in xrange(1, len(points), 2):
                points[idx] = dxy[1] + points[idx]

        #print points

        c.coords(*([self.dnd_dragged] + points))

        self.event_generate('<<DnDMoved>>')

    def up(self, event):
        if self.dragging:
            self.master.config(cursor = "")
            self.dragging = False
            self.off = None
            self.event_generate('<<DnDUp>>')
            """ Right after event. Listeners should be able to get which id
            is not dragged now. """
            del self.dnd_dragged
Beispiel #20
0
    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        self._cntx_bf_len = IntVar(self.top)
        self._cntx_af_len = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label="Exit",
                             underline=1,
                             command=self.destroy,
                             accelerator="Ctrl-q")
        menubar.add_cascade(label="File", underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(
            label="20",
            variable=self._result_size,
            underline=0,
            value=20,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="50",
            variable=self._result_size,
            underline=0,
            value=50,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="100",
            variable=self._result_size,
            underline=0,
            value=100,
            command=self.set_result_size,
        )
        rescntmenu.invoke(1)
        editmenu.add_cascade(label="Result Count",
                             underline=0,
                             menu=rescntmenu)

        cntxmenu = Menu(editmenu, tearoff=0)
        cntxbfmenu = Menu(cntxmenu, tearoff=0)
        cntxbfmenu.add_radiobutton(
            label="60 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=60,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.add_radiobutton(
            label="80 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=80,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.add_radiobutton(
            label="100 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=100,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.invoke(1)
        cntxmenu.add_cascade(label="Before", underline=0, menu=cntxbfmenu)

        cntxafmenu = Menu(cntxmenu, tearoff=0)
        cntxafmenu.add_radiobutton(
            label="70 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=70,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.add_radiobutton(
            label="90 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=90,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.add_radiobutton(
            label="110 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=110,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.invoke(1)
        cntxmenu.add_cascade(label="After", underline=0, menu=cntxafmenu)

        editmenu.add_cascade(label="Context", underline=0, menu=cntxmenu)

        menubar.add_cascade(label="Edit", underline=0, menu=editmenu)

        self.top.config(menu=menubar)
class RecursiveDescentApp(object):
    """
    A graphical tool for exploring the recursive descent parser.  The tool
    displays the parser's tree and the remaining text, and allows the
    user to control the parser's operation.  In particular, the user
    can expand subtrees on the frontier, match tokens on the frontier
    against the text, and backtrack.  A "step" button simply steps
    through the parsing process, performing the operations that
    ``RecursiveDescentParser`` would use.
    """

    def __init__(self, grammar, sent, trace=0):
        self._sent = sent
        self._parser = SteppingRecursiveDescentParser(grammar, trace)

        # Set up the main window.
        self._top = Tk()
        self._top.title('Recursive Descent Parser Application')

        # Set up key bindings.
        self._init_bindings()

        # Initialize the fonts.
        self._init_fonts(self._top)

        # Animations.  animating_lock is a lock to prevent the demo
        # from performing new operations while it's animating.
        self._animation_frames = IntVar(self._top)
        self._animation_frames.set(5)
        self._animating_lock = 0
        self._autostep = 0

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_feedback(self._top)
        self._init_grammar(self._top)
        self._init_canvas(self._top)

        # Initialize the parser.
        self._parser.initialize(self._sent)

        # Resize callback
        self._canvas.bind('<Configure>', self._configure)

    #########################################
    ##  Initialization Helpers
    #########################################

    def _init_fonts(self, root):
        # See: <http://www.astro.washington.edu/owen/ROTKFolklore.html>
        self._sysfont = Font(font=Button()["font"])
        root.option_add("*Font", self._sysfont)

        # TWhat's our font size (default=same as sysfont)
        self._size = IntVar(root)
        self._size.set(self._sysfont.cget('size'))

        self._boldfont = Font(family='helvetica', weight='bold', size=self._size.get())
        self._font = Font(family='helvetica', size=self._size.get())
        if self._size.get() < 0:
            big = self._size.get() - 2
        else:
            big = self._size.get() + 2
        self._bigfont = Font(family='helvetica', weight='bold', size=big)

    def _init_grammar(self, parent):
        # Grammar view.
        self._prodframe = listframe = Frame(parent)
        self._prodframe.pack(fill='both', side='left', padx=2)
        self._prodlist_label = Label(
            self._prodframe, font=self._boldfont, text='Available Expansions'
        )
        self._prodlist_label.pack()
        self._prodlist = Listbox(
            self._prodframe,
            selectmode='single',
            relief='groove',
            background='white',
            foreground='#909090',
            font=self._font,
            selectforeground='#004040',
            selectbackground='#c0f0c0',
        )

        self._prodlist.pack(side='right', fill='both', expand=1)

        self._productions = list(self._parser.grammar().productions())
        for production in self._productions:
            self._prodlist.insert('end', ('  %s' % production))
        self._prodlist.config(height=min(len(self._productions), 25))

        # Add a scrollbar if there are more than 25 productions.
        if len(self._productions) > 25:
            listscroll = Scrollbar(self._prodframe, orient='vertical')
            self._prodlist.config(yscrollcommand=listscroll.set)
            listscroll.config(command=self._prodlist.yview)
            listscroll.pack(side='left', fill='y')

        # If they select a production, apply it.
        self._prodlist.bind('<<ListboxSelect>>', self._prodlist_select)

    def _init_bindings(self):
        # Key bindings are a good thing.
        self._top.bind('<Control-q>', self.destroy)
        self._top.bind('<Control-x>', self.destroy)
        self._top.bind('<Escape>', self.destroy)
        self._top.bind('e', self.expand)
        # self._top.bind('<Alt-e>', self.expand)
        # self._top.bind('<Control-e>', self.expand)
        self._top.bind('m', self.match)
        self._top.bind('<Alt-m>', self.match)
        self._top.bind('<Control-m>', self.match)
        self._top.bind('b', self.backtrack)
        self._top.bind('<Alt-b>', self.backtrack)
        self._top.bind('<Control-b>', self.backtrack)
        self._top.bind('<Control-z>', self.backtrack)
        self._top.bind('<BackSpace>', self.backtrack)
        self._top.bind('a', self.autostep)
        # self._top.bind('<Control-a>', self.autostep)
        self._top.bind('<Control-space>', self.autostep)
        self._top.bind('<Control-c>', self.cancel_autostep)
        self._top.bind('<space>', self.step)
        self._top.bind('<Delete>', self.reset)
        self._top.bind('<Control-p>', self.postscript)
        # self._top.bind('<h>', self.help)
        # self._top.bind('<Alt-h>', self.help)
        self._top.bind('<Control-h>', self.help)
        self._top.bind('<F1>', self.help)
        # self._top.bind('<g>', self.toggle_grammar)
        # self._top.bind('<Alt-g>', self.toggle_grammar)
        # self._top.bind('<Control-g>', self.toggle_grammar)
        self._top.bind('<Control-g>', self.edit_grammar)
        self._top.bind('<Control-t>', self.edit_sentence)

    def _init_buttons(self, parent):
        # Set up the frames.
        self._buttonframe = buttonframe = Frame(parent)
        buttonframe.pack(fill='none', side='bottom', padx=3, pady=2)
        Button(
            buttonframe,
            text='Step',
            background='#90c0d0',
            foreground='black',
            command=self.step,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Autostep',
            background='#90c0d0',
            foreground='black',
            command=self.autostep,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Expand',
            underline=0,
            background='#90f090',
            foreground='black',
            command=self.expand,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Match',
            underline=0,
            background='#90f090',
            foreground='black',
            command=self.match,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Backtrack',
            underline=0,
            background='#f0a0a0',
            foreground='black',
            command=self.backtrack,
        ).pack(side='left')
        # Replace autostep...

    #         self._autostep_button = Button(buttonframe, text='Autostep',
    #                                        underline=0, command=self.autostep)
    #         self._autostep_button.pack(side='left')

    def _configure(self, event):
        self._autostep = 0
        (x1, y1, x2, y2) = self._cframe.scrollregion()
        y2 = event.height - 6
        self._canvas['scrollregion'] = '%d %d %d %d' % (x1, y1, x2, y2)
        self._redraw()

    def _init_feedback(self, parent):
        self._feedbackframe = feedbackframe = Frame(parent)
        feedbackframe.pack(fill='x', side='bottom', padx=3, pady=3)
        self._lastoper_label = Label(
            feedbackframe, text='Last Operation:', font=self._font
        )
        self._lastoper_label.pack(side='left')
        lastoperframe = Frame(feedbackframe, relief='sunken', border=1)
        lastoperframe.pack(fill='x', side='right', expand=1, padx=5)
        self._lastoper1 = Label(
            lastoperframe, foreground='#007070', background='#f0f0f0', font=self._font
        )
        self._lastoper2 = Label(
            lastoperframe,
            anchor='w',
            width=30,
            foreground='#004040',
            background='#f0f0f0',
            font=self._font,
        )
        self._lastoper1.pack(side='left')
        self._lastoper2.pack(side='left', fill='x', expand=1)

    def _init_canvas(self, parent):
        self._cframe = CanvasFrame(
            parent,
            background='white',
            # width=525, height=250,
            closeenough=10,
            border=2,
            relief='sunken',
        )
        self._cframe.pack(expand=1, fill='both', side='top', pady=2)
        canvas = self._canvas = self._cframe.canvas()

        # Initially, there's no tree or text
        self._tree = None
        self._textwidgets = []
        self._textline = None

    def _init_menubar(self, parent):
        menubar = Menu(parent)

        filemenu = Menu(menubar, tearoff=0)
        filemenu.add_command(
            label='Reset Parser', underline=0, command=self.reset, accelerator='Del'
        )
        filemenu.add_command(
            label='Print to Postscript',
            underline=0,
            command=self.postscript,
            accelerator='Ctrl-p',
        )
        filemenu.add_command(
            label='Exit', underline=1, command=self.destroy, accelerator='Ctrl-x'
        )
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        editmenu.add_command(
            label='Edit Grammar',
            underline=5,
            command=self.edit_grammar,
            accelerator='Ctrl-g',
        )
        editmenu.add_command(
            label='Edit Text',
            underline=5,
            command=self.edit_sentence,
            accelerator='Ctrl-t',
        )
        menubar.add_cascade(label='Edit', underline=0, menu=editmenu)

        rulemenu = Menu(menubar, tearoff=0)
        rulemenu.add_command(
            label='Step', underline=1, command=self.step, accelerator='Space'
        )
        rulemenu.add_separator()
        rulemenu.add_command(
            label='Match', underline=0, command=self.match, accelerator='Ctrl-m'
        )
        rulemenu.add_command(
            label='Expand', underline=0, command=self.expand, accelerator='Ctrl-e'
        )
        rulemenu.add_separator()
        rulemenu.add_command(
            label='Backtrack', underline=0, command=self.backtrack, accelerator='Ctrl-b'
        )
        menubar.add_cascade(label='Apply', underline=0, menu=rulemenu)

        viewmenu = Menu(menubar, tearoff=0)
        viewmenu.add_checkbutton(
            label="Show Grammar",
            underline=0,
            variable=self._show_grammar,
            command=self._toggle_grammar,
        )
        viewmenu.add_separator()
        viewmenu.add_radiobutton(
            label='Tiny',
            variable=self._size,
            underline=0,
            value=10,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Small',
            variable=self._size,
            underline=0,
            value=12,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Medium',
            variable=self._size,
            underline=0,
            value=14,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Large',
            variable=self._size,
            underline=0,
            value=18,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Huge',
            variable=self._size,
            underline=0,
            value=24,
            command=self.resize,
        )
        menubar.add_cascade(label='View', underline=0, menu=viewmenu)

        animatemenu = Menu(menubar, tearoff=0)
        animatemenu.add_radiobutton(
            label="No Animation", underline=0, variable=self._animation_frames, value=0
        )
        animatemenu.add_radiobutton(
            label="Slow Animation",
            underline=0,
            variable=self._animation_frames,
            value=10,
            accelerator='-',
        )
        animatemenu.add_radiobutton(
            label="Normal Animation",
            underline=0,
            variable=self._animation_frames,
            value=5,
            accelerator='=',
        )
        animatemenu.add_radiobutton(
            label="Fast Animation",
            underline=0,
            variable=self._animation_frames,
            value=2,
            accelerator='+',
        )
        menubar.add_cascade(label="Animate", underline=1, menu=animatemenu)

        helpmenu = Menu(menubar, tearoff=0)
        helpmenu.add_command(label='About', underline=0, command=self.about)
        helpmenu.add_command(
            label='Instructions', underline=0, command=self.help, accelerator='F1'
        )
        menubar.add_cascade(label='Help', underline=0, menu=helpmenu)

        parent.config(menu=menubar)

    #########################################
    ##  Helper
    #########################################

    def _get(self, widget, treeloc):
        for i in treeloc:
            widget = widget.subtrees()[i]
        if isinstance(widget, TreeSegmentWidget):
            widget = widget.label()
        return widget

    #########################################
    ##  Main draw procedure
    #########################################

    def _redraw(self):
        canvas = self._canvas

        # Delete the old tree, widgets, etc.
        if self._tree is not None:
            self._cframe.destroy_widget(self._tree)
        for twidget in self._textwidgets:
            self._cframe.destroy_widget(twidget)
        if self._textline is not None:
            self._canvas.delete(self._textline)

        # Draw the tree.
        helv = ('helvetica', -self._size.get())
        bold = ('helvetica', -self._size.get(), 'bold')
        attribs = {
            'tree_color': '#000000',
            'tree_width': 2,
            'node_font': bold,
            'leaf_font': helv,
        }
        tree = self._parser.tree()
        self._tree = tree_to_treesegment(canvas, tree, **attribs)
        self._cframe.add_widget(self._tree, 30, 5)

        # Draw the text.
        helv = ('helvetica', -self._size.get())
        bottom = y = self._cframe.scrollregion()[3]
        self._textwidgets = [
            TextWidget(canvas, word, font=self._font) for word in self._sent
        ]
        for twidget in self._textwidgets:
            self._cframe.add_widget(twidget, 0, 0)
            twidget.move(0, bottom - twidget.bbox()[3] - 5)
            y = min(y, twidget.bbox()[1])

        # Draw a line over the text, to separate it from the tree.
        self._textline = canvas.create_line(-5000, y - 5, 5000, y - 5, dash='.')

        # Highlight appropriate nodes.
        self._highlight_nodes()
        self._highlight_prodlist()

        # Make sure the text lines up.
        self._position_text()

    def _redraw_quick(self):
        # This should be more-or-less sufficient after an animation.
        self._highlight_nodes()
        self._highlight_prodlist()
        self._position_text()

    def _highlight_nodes(self):
        # Highlight the list of nodes to be checked.
        bold = ('helvetica', -self._size.get(), 'bold')
        for treeloc in self._parser.frontier()[:1]:
            self._get(self._tree, treeloc)['color'] = '#20a050'
            self._get(self._tree, treeloc)['font'] = bold
        for treeloc in self._parser.frontier()[1:]:
            self._get(self._tree, treeloc)['color'] = '#008080'

    def _highlight_prodlist(self):
        # Highlight the productions that can be expanded.
        # Boy, too bad tkinter doesn't implement Listbox.itemconfig;
        # that would be pretty useful here.
        self._prodlist.delete(0, 'end')
        expandable = self._parser.expandable_productions()
        untried = self._parser.untried_expandable_productions()
        productions = self._productions
        for index in range(len(productions)):
            if productions[index] in expandable:
                if productions[index] in untried:
                    self._prodlist.insert(index, ' %s' % productions[index])
                else:
                    self._prodlist.insert(index, ' %s (TRIED)' % productions[index])
                self._prodlist.selection_set(index)
            else:
                self._prodlist.insert(index, ' %s' % productions[index])

    def _position_text(self):
        # Line up the text widgets that are matched against the tree
        numwords = len(self._sent)
        num_matched = numwords - len(self._parser.remaining_text())
        leaves = self._tree_leaves()[:num_matched]
        xmax = self._tree.bbox()[0]
        for i in range(0, len(leaves)):
            widget = self._textwidgets[i]
            leaf = leaves[i]
            widget['color'] = '#006040'
            leaf['color'] = '#006040'
            widget.move(leaf.bbox()[0] - widget.bbox()[0], 0)
            xmax = widget.bbox()[2] + 10

        # Line up the text widgets that are not matched against the tree.
        for i in range(len(leaves), numwords):
            widget = self._textwidgets[i]
            widget['color'] = '#a0a0a0'
            widget.move(xmax - widget.bbox()[0], 0)
            xmax = widget.bbox()[2] + 10

        # If we have a complete parse, make everything green :)
        if self._parser.currently_complete():
            for twidget in self._textwidgets:
                twidget['color'] = '#00a000'

        # Move the matched leaves down to the text.
        for i in range(0, len(leaves)):
            widget = self._textwidgets[i]
            leaf = leaves[i]
            dy = widget.bbox()[1] - leaf.bbox()[3] - 10.0
            dy = max(dy, leaf.parent().label().bbox()[3] - leaf.bbox()[3] + 10)
            leaf.move(0, dy)

    def _tree_leaves(self, tree=None):
        if tree is None:
            tree = self._tree
        if isinstance(tree, TreeSegmentWidget):
            leaves = []
            for child in tree.subtrees():
                leaves += self._tree_leaves(child)
            return leaves
        else:
            return [tree]

    #########################################
    ##  Button Callbacks
    #########################################

    def destroy(self, *e):
        self._autostep = 0
        if self._top is None:
            return
        self._top.destroy()
        self._top = None

    def reset(self, *e):
        self._autostep = 0
        self._parser.initialize(self._sent)
        self._lastoper1['text'] = 'Reset Application'
        self._lastoper2['text'] = ''
        self._redraw()

    def autostep(self, *e):
        if self._animation_frames.get() == 0:
            self._animation_frames.set(2)
        if self._autostep:
            self._autostep = 0
        else:
            self._autostep = 1
            self._step()

    def cancel_autostep(self, *e):
        # self._autostep_button['text'] = 'Autostep'
        self._autostep = 0

    # Make sure to stop auto-stepping if we get any user input.
    def step(self, *e):
        self._autostep = 0
        self._step()

    def match(self, *e):
        self._autostep = 0
        self._match()

    def expand(self, *e):
        self._autostep = 0
        self._expand()

    def backtrack(self, *e):
        self._autostep = 0
        self._backtrack()

    def _step(self):
        if self._animating_lock:
            return

        # Try expanding, matching, and backtracking (in that order)
        if self._expand():
            pass
        elif self._parser.untried_match() and self._match():
            pass
        elif self._backtrack():
            pass
        else:
            self._lastoper1['text'] = 'Finished'
            self._lastoper2['text'] = ''
            self._autostep = 0

        # Check if we just completed a parse.
        if self._parser.currently_complete():
            self._autostep = 0
            self._lastoper2['text'] += '    [COMPLETE PARSE]'

    def _expand(self, *e):
        if self._animating_lock:
            return
        old_frontier = self._parser.frontier()
        rv = self._parser.expand()
        if rv is not None:
            self._lastoper1['text'] = 'Expand:'
            self._lastoper2['text'] = rv
            self._prodlist.selection_clear(0, 'end')
            index = self._productions.index(rv)
            self._prodlist.selection_set(index)
            self._animate_expand(old_frontier[0])
            return True
        else:
            self._lastoper1['text'] = 'Expand:'
            self._lastoper2['text'] = '(all expansions tried)'
            return False

    def _match(self, *e):
        if self._animating_lock:
            return
        old_frontier = self._parser.frontier()
        rv = self._parser.match()
        if rv is not None:
            self._lastoper1['text'] = 'Match:'
            self._lastoper2['text'] = rv
            self._animate_match(old_frontier[0])
            return True
        else:
            self._lastoper1['text'] = 'Match:'
            self._lastoper2['text'] = '(failed)'
            return False

    def _backtrack(self, *e):
        if self._animating_lock:
            return
        if self._parser.backtrack():
            elt = self._parser.tree()
            for i in self._parser.frontier()[0]:
                elt = elt[i]
            self._lastoper1['text'] = 'Backtrack'
            self._lastoper2['text'] = ''
            if isinstance(elt, Tree):
                self._animate_backtrack(self._parser.frontier()[0])
            else:
                self._animate_match_backtrack(self._parser.frontier()[0])
            return True
        else:
            self._autostep = 0
            self._lastoper1['text'] = 'Finished'
            self._lastoper2['text'] = ''
            return False

    def about(self, *e):
        ABOUT = (
            "NLTK Recursive Descent Parser Application\n" + "Written by Edward Loper"
        )
        TITLE = 'About: Recursive Descent Parser Application'
        try:
            from six.moves.tkinter_messagebox import Message

            Message(message=ABOUT, title=TITLE).show()
        except:
            ShowText(self._top, TITLE, ABOUT)

    def help(self, *e):
        self._autostep = 0
        # The default font's not very legible; try using 'fixed' instead.
        try:
            ShowText(
                self._top,
                'Help: Recursive Descent Parser Application',
                (__doc__ or '').strip(),
                width=75,
                font='fixed',
            )
        except:
            ShowText(
                self._top,
                'Help: Recursive Descent Parser Application',
                (__doc__ or '').strip(),
                width=75,
            )

    def postscript(self, *e):
        self._autostep = 0
        self._cframe.print_to_file()

    def mainloop(self, *args, **kwargs):
        """
        Enter the Tkinter mainloop.  This function must be called if
        this demo is created from a non-interactive program (e.g.
        from a secript); otherwise, the demo will close as soon as
        the script completes.
        """
        if in_idle():
            return
        self._top.mainloop(*args, **kwargs)

    def resize(self, size=None):
        if size is not None:
            self._size.set(size)
        size = self._size.get()
        self._font.configure(size=-(abs(size)))
        self._boldfont.configure(size=-(abs(size)))
        self._sysfont.configure(size=-(abs(size)))
        self._bigfont.configure(size=-(abs(size + 2)))
        self._redraw()

    #########################################
    ##  Expand Production Selection
    #########################################

    def _toggle_grammar(self, *e):
        if self._show_grammar.get():
            self._prodframe.pack(
                fill='both', side='left', padx=2, after=self._feedbackframe
            )
            self._lastoper1['text'] = 'Show Grammar'
        else:
            self._prodframe.pack_forget()
            self._lastoper1['text'] = 'Hide Grammar'
        self._lastoper2['text'] = ''

    #     def toggle_grammar(self, *e):
    #         self._show_grammar = not self._show_grammar
    #         if self._show_grammar:
    #             self._prodframe.pack(fill='both', expand='y', side='left',
    #                                  after=self._feedbackframe)
    #             self._lastoper1['text'] = 'Show Grammar'
    #         else:
    #             self._prodframe.pack_forget()
    #             self._lastoper1['text'] = 'Hide Grammar'
    #         self._lastoper2['text'] = ''

    def _prodlist_select(self, event):
        selection = self._prodlist.curselection()
        if len(selection) != 1:
            return
        index = int(selection[0])
        old_frontier = self._parser.frontier()
        production = self._parser.expand(self._productions[index])

        if production:
            self._lastoper1['text'] = 'Expand:'
            self._lastoper2['text'] = production
            self._prodlist.selection_clear(0, 'end')
            self._prodlist.selection_set(index)
            self._animate_expand(old_frontier[0])
        else:
            # Reset the production selections.
            self._prodlist.selection_clear(0, 'end')
            for prod in self._parser.expandable_productions():
                index = self._productions.index(prod)
                self._prodlist.selection_set(index)

    #########################################
    ##  Animation
    #########################################

    def _animate_expand(self, treeloc):
        oldwidget = self._get(self._tree, treeloc)
        oldtree = oldwidget.parent()
        top = not isinstance(oldtree.parent(), TreeSegmentWidget)

        tree = self._parser.tree()
        for i in treeloc:
            tree = tree[i]

        widget = tree_to_treesegment(
            self._canvas,
            tree,
            node_font=self._boldfont,
            leaf_color='white',
            tree_width=2,
            tree_color='white',
            node_color='white',
            leaf_font=self._font,
        )
        widget.label()['color'] = '#20a050'

        (oldx, oldy) = oldtree.label().bbox()[:2]
        (newx, newy) = widget.label().bbox()[:2]
        widget.move(oldx - newx, oldy - newy)

        if top:
            self._cframe.add_widget(widget, 0, 5)
            widget.move(30 - widget.label().bbox()[0], 0)
            self._tree = widget
        else:
            oldtree.parent().replace_child(oldtree, widget)

        # Move the children over so they don't overlap.
        # Line the children up in a strange way.
        if widget.subtrees():
            dx = (
                oldx
                + widget.label().width() / 2
                - widget.subtrees()[0].bbox()[0] / 2
                - widget.subtrees()[0].bbox()[2] / 2
            )
            for subtree in widget.subtrees():
                subtree.move(dx, 0)

        self._makeroom(widget)

        if top:
            self._cframe.destroy_widget(oldtree)
        else:
            oldtree.destroy()

        colors = [
            'gray%d' % (10 * int(10 * x / self._animation_frames.get()))
            for x in range(self._animation_frames.get(), 0, -1)
        ]

        # Move the text string down, if necessary.
        dy = widget.bbox()[3] + 30 - self._canvas.coords(self._textline)[1]
        if dy > 0:
            for twidget in self._textwidgets:
                twidget.move(0, dy)
            self._canvas.move(self._textline, 0, dy)

        self._animate_expand_frame(widget, colors)

    def _makeroom(self, treeseg):
        """
        Make sure that no sibling tree bbox's overlap.
        """
        parent = treeseg.parent()
        if not isinstance(parent, TreeSegmentWidget):
            return

        index = parent.subtrees().index(treeseg)

        # Handle siblings to the right
        rsiblings = parent.subtrees()[index + 1 :]
        if rsiblings:
            dx = treeseg.bbox()[2] - rsiblings[0].bbox()[0] + 10
            for sibling in rsiblings:
                sibling.move(dx, 0)

        # Handle siblings to the left
        if index > 0:
            lsibling = parent.subtrees()[index - 1]
            dx = max(0, lsibling.bbox()[2] - treeseg.bbox()[0] + 10)
            treeseg.move(dx, 0)

        # Keep working up the tree.
        self._makeroom(parent)

    def _animate_expand_frame(self, widget, colors):
        if len(colors) > 0:
            self._animating_lock = 1
            widget['color'] = colors[0]
            for subtree in widget.subtrees():
                if isinstance(subtree, TreeSegmentWidget):
                    subtree.label()['color'] = colors[0]
                else:
                    subtree['color'] = colors[0]
            self._top.after(50, self._animate_expand_frame, widget, colors[1:])
        else:
            widget['color'] = 'black'
            for subtree in widget.subtrees():
                if isinstance(subtree, TreeSegmentWidget):
                    subtree.label()['color'] = 'black'
                else:
                    subtree['color'] = 'black'
            self._redraw_quick()
            widget.label()['color'] = 'black'
            self._animating_lock = 0
            if self._autostep:
                self._step()

    def _animate_backtrack(self, treeloc):
        # Flash red first, if we're animating.
        if self._animation_frames.get() == 0:
            colors = []
        else:
            colors = ['#a00000', '#000000', '#a00000']
        colors += [
            'gray%d' % (10 * int(10 * x / (self._animation_frames.get())))
            for x in range(1, self._animation_frames.get() + 1)
        ]

        widgets = [self._get(self._tree, treeloc).parent()]
        for subtree in widgets[0].subtrees():
            if isinstance(subtree, TreeSegmentWidget):
                widgets.append(subtree.label())
            else:
                widgets.append(subtree)

        self._animate_backtrack_frame(widgets, colors)

    def _animate_backtrack_frame(self, widgets, colors):
        if len(colors) > 0:
            self._animating_lock = 1
            for widget in widgets:
                widget['color'] = colors[0]
            self._top.after(50, self._animate_backtrack_frame, widgets, colors[1:])
        else:
            for widget in widgets[0].subtrees():
                widgets[0].remove_child(widget)
                widget.destroy()
            self._redraw_quick()
            self._animating_lock = 0
            if self._autostep:
                self._step()

    def _animate_match_backtrack(self, treeloc):
        widget = self._get(self._tree, treeloc)
        node = widget.parent().label()
        dy = (node.bbox()[3] - widget.bbox()[1] + 14) / max(
            1, self._animation_frames.get()
        )
        self._animate_match_backtrack_frame(self._animation_frames.get(), widget, dy)

    def _animate_match(self, treeloc):
        widget = self._get(self._tree, treeloc)

        dy = (self._textwidgets[0].bbox()[1] - widget.bbox()[3] - 10.0) / max(
            1, self._animation_frames.get()
        )
        self._animate_match_frame(self._animation_frames.get(), widget, dy)

    def _animate_match_frame(self, frame, widget, dy):
        if frame > 0:
            self._animating_lock = 1
            widget.move(0, dy)
            self._top.after(10, self._animate_match_frame, frame - 1, widget, dy)
        else:
            widget['color'] = '#006040'
            self._redraw_quick()
            self._animating_lock = 0
            if self._autostep:
                self._step()

    def _animate_match_backtrack_frame(self, frame, widget, dy):
        if frame > 0:
            self._animating_lock = 1
            widget.move(0, dy)
            self._top.after(
                10, self._animate_match_backtrack_frame, frame - 1, widget, dy
            )
        else:
            widget.parent().remove_child(widget)
            widget.destroy()
            self._animating_lock = 0
            if self._autostep:
                self._step()

    def edit_grammar(self, *e):
        CFGEditor(self._top, self._parser.grammar(), self.set_grammar)

    def set_grammar(self, grammar):
        self._parser.set_grammar(grammar)
        self._productions = list(grammar.productions())
        self._prodlist.delete(0, 'end')
        for production in self._productions:
            self._prodlist.insert('end', (' %s' % production))

    def edit_sentence(self, *e):
        sentence = " ".join(self._sent)
        title = 'Edit Text'
        instr = 'Enter a new sentence to parse.'
        EntryDialog(self._top, sentence, instr, self.set_sentence, title)

    def set_sentence(self, sentence):
        self._sent = sentence.split()  # [XX] use tagged?
        self.reset()
Beispiel #22
0
class CollocationsView:
    _BACKGROUND_COLOUR = "#FFF"  # white

    def __init__(self):
        self.queue = q.Queue()
        self.model = CollocationsModel(self.queue)
        self.top = Tk()
        self._init_top(self.top)
        self._init_menubar()
        self._init_widgets(self.top)
        self.load_corpus(self.model.DEFAULT_CORPUS)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def _init_top(self, top):
        top.geometry("550x650+50+50")
        top.title("NLTK Collocations List")
        top.bind("<Control-q>", self.destroy)
        top.protocol("WM_DELETE_WINDOW", self.destroy)
        top.minsize(550, 650)

    def _init_widgets(self, parent):
        self.main_frame = Frame(
            parent,
            dict(background=self._BACKGROUND_COLOUR, padx=1, pady=1, border=1))
        self._init_corpus_select(self.main_frame)
        self._init_results_box(self.main_frame)
        self._init_paging(self.main_frame)
        self._init_status(self.main_frame)
        self.main_frame.pack(fill="both", expand=True)

    def _init_corpus_select(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.var = StringVar(innerframe)
        self.var.set(self.model.DEFAULT_CORPUS)
        Label(
            innerframe,
            justify=LEFT,
            text=" Corpus: ",
            background=self._BACKGROUND_COLOUR,
            padx=2,
            pady=1,
            border=0,
        ).pack(side="left")

        other_corpora = list(self.model.CORPORA.keys()).remove(
            self.model.DEFAULT_CORPUS)
        om = OptionMenu(innerframe,
                        self.var,
                        self.model.DEFAULT_CORPUS,
                        command=self.corpus_selected,
                        *self.model.non_default_corpora())
        om["borderwidth"] = 0
        om["highlightthickness"] = 1
        om.pack(side="left")
        innerframe.pack(side="top", fill="x", anchor="n")

    def _init_status(self, parent):
        self.status = Label(
            parent,
            justify=LEFT,
            relief=SUNKEN,
            background=self._BACKGROUND_COLOUR,
            border=0,
            padx=1,
            pady=0,
        )
        self.status.pack(side="top", anchor="sw")

    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label="Exit",
                             underline=1,
                             command=self.destroy,
                             accelerator="Ctrl-q")
        menubar.add_cascade(label="File", underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(
            label="20",
            variable=self._result_size,
            underline=0,
            value=20,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="50",
            variable=self._result_size,
            underline=0,
            value=50,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="100",
            variable=self._result_size,
            underline=0,
            value=100,
            command=self.set_result_size,
        )
        rescntmenu.invoke(1)
        editmenu.add_cascade(label="Result Count",
                             underline=0,
                             menu=rescntmenu)

        menubar.add_cascade(label="Edit", underline=0, menu=editmenu)
        self.top.config(menu=menubar)

    def set_result_size(self, **kwargs):
        self.model.result_count = self._result_size.get()

    def _init_results_box(self, parent):
        innerframe = Frame(parent)
        i1 = Frame(innerframe)
        i2 = Frame(innerframe)
        vscrollbar = Scrollbar(i1, borderwidth=1)
        hscrollbar = Scrollbar(i2, borderwidth=1, orient="horiz")
        self.results_box = Text(
            i1,
            font=Font(family="courier", size="16"),
            state="disabled",
            borderwidth=1,
            yscrollcommand=vscrollbar.set,
            xscrollcommand=hscrollbar.set,
            wrap="none",
            width="40",
            height="20",
            exportselection=1,
        )
        self.results_box.pack(side="left", fill="both", expand=True)
        vscrollbar.pack(side="left", fill="y", anchor="e")
        vscrollbar.config(command=self.results_box.yview)
        hscrollbar.pack(side="left", fill="x", expand=True, anchor="w")
        hscrollbar.config(command=self.results_box.xview)
        # there is no other way of avoiding the overlap of scrollbars while using pack layout manager!!!
        Label(i2, text="   ",
              background=self._BACKGROUND_COLOUR).pack(side="left", anchor="e")
        i1.pack(side="top", fill="both", expand=True, anchor="n")
        i2.pack(side="bottom", fill="x", anchor="s")
        innerframe.pack(side="top", fill="both", expand=True)

    def _init_paging(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.prev = prev = Button(
            innerframe,
            text="Previous",
            command=self.previous,
            width="10",
            borderwidth=1,
            highlightthickness=1,
            state="disabled",
        )
        prev.pack(side="left", anchor="center")
        self.next = next = Button(
            innerframe,
            text="Next",
            command=self.__next__,
            width="10",
            borderwidth=1,
            highlightthickness=1,
            state="disabled",
        )
        next.pack(side="right", anchor="center")
        innerframe.pack(side="top", fill="y")
        self.reset_current_page()

    def reset_current_page(self):
        self.current_page = -1

    def _poll(self):
        try:
            event = self.queue.get(block=False)
        except q.Empty:
            pass
        else:
            if event == CORPUS_LOADED_EVENT:
                self.handle_corpus_loaded(event)
            elif event == ERROR_LOADING_CORPUS_EVENT:
                self.handle_error_loading_corpus(event)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def handle_error_loading_corpus(self, event):
        self.status["text"] = "Error in loading " + self.var.get()
        self.unfreeze_editable()
        self.clear_results_box()
        self.freeze_editable()
        self.reset_current_page()

    def handle_corpus_loaded(self, event):
        self.status["text"] = self.var.get() + " is loaded"
        self.unfreeze_editable()
        self.clear_results_box()
        self.reset_current_page()
        # self.next()
        collocations = self.model.next(self.current_page + 1)
        self.write_results(collocations)
        self.current_page += 1

    def corpus_selected(self, *args):
        new_selection = self.var.get()
        self.load_corpus(new_selection)

    def previous(self):
        self.freeze_editable()
        collocations = self.model.prev(self.current_page - 1)
        self.current_page = self.current_page - 1
        self.clear_results_box()
        self.write_results(collocations)
        self.unfreeze_editable()

    def __next__(self):
        self.freeze_editable()
        collocations = self.model.next(self.current_page + 1)
        self.clear_results_box()
        self.write_results(collocations)
        self.current_page += 1
        self.unfreeze_editable()

    def load_corpus(self, selection):
        if self.model.selected_corpus != selection:
            self.status["text"] = "Loading " + selection + "..."
            self.freeze_editable()
            self.model.load_corpus(selection)

    def freeze_editable(self):
        self.prev["state"] = "disabled"
        self.next["state"] = "disabled"

    def clear_results_box(self):
        self.results_box["state"] = "normal"
        self.results_box.delete("1.0", END)
        self.results_box["state"] = "disabled"

    def fire_event(self, event):
        # Firing an event so that rendering of widgets happen in the mainloop thread
        self.top.event_generate(event, when="tail")

    def destroy(self, *e):
        if self.top is None:
            return
        self.top.after_cancel(self.after)
        self.top.destroy()
        self.top = None

    def mainloop(self, *args, **kwargs):
        if in_idle():
            return
        self.top.mainloop(*args, **kwargs)

    def unfreeze_editable(self):
        self.set_paging_button_states()

    def set_paging_button_states(self):
        if self.current_page == -1 or self.current_page == 0:
            self.prev["state"] = "disabled"
        else:
            self.prev["state"] = "normal"
        if self.model.is_last_page(self.current_page):
            self.next["state"] = "disabled"
        else:
            self.next["state"] = "normal"

    def write_results(self, results):
        self.results_box["state"] = "normal"
        row = 1
        for each in results:
            self.results_box.insert(
                str(row) + ".0", each[0] + " " + each[1] + "\n")
            row += 1
        self.results_box["state"] = "disabled"
Beispiel #23
0
class CFGDemo(object):
    def __init__(self, grammar, text):
        self._grammar = grammar
        self._text = text

        # Set up the main window.
        self._top = Tk()
        self._top.title('Context Free Grammar Demo')

        # Base font size
        self._size = IntVar(self._top)
        self._size.set(12) # = medium

        # Set up the key bindings
        self._init_bindings(self._top)

        # Create the basic frames
        frame1 = Frame(self._top)
        frame1.pack(side='left', fill='y', expand=0)
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_grammar(frame1)
        self._init_treelet(frame1)
        self._init_workspace(self._top)

    #//////////////////////////////////////////////////
    # Initialization
    #//////////////////////////////////////////////////

    def _init_bindings(self, top):
        top.bind('<Control-q>', self.destroy)

    def _init_menubar(self, parent): pass

    def _init_buttons(self, parent): pass

    def _init_grammar(self, parent):
        self._prodlist = ProductionList(parent, self._grammar, width=20)
        self._prodlist.pack(side='top', fill='both', expand=1)
        self._prodlist.focus()
        self._prodlist.add_callback('select', self._selectprod_cb)
        self._prodlist.add_callback('move', self._selectprod_cb)

    def _init_treelet(self, parent):
        self._treelet_canvas = Canvas(parent, background='white')
        self._treelet_canvas.pack(side='bottom', fill='x')
        self._treelet = None

    def _init_workspace(self, parent):
        self._workspace = CanvasFrame(parent, background='white')
        self._workspace.pack(side='right', fill='both', expand=1)
        self._tree = None
        self.reset_workspace()

    #//////////////////////////////////////////////////
    # Workspace
    #//////////////////////////////////////////////////

    def reset_workspace(self):
        c = self._workspace.canvas()
        fontsize = int(self._size.get())
        node_font = ('helvetica', -(fontsize+4), 'bold')
        leaf_font = ('helvetica', -(fontsize+2))

        # Remove the old tree
        if self._tree is not None:
            self._workspace.remove_widget(self._tree)

        # The root of the tree.
        start = self._grammar.start().symbol()
        rootnode = TextWidget(c, start, font=node_font, draggable=1)

        # The leaves of the tree.
        leaves = []
        for word in self._text:
            leaves.append(TextWidget(c, word, font=leaf_font, draggable=1))

        # Put it all together into one tree
        self._tree = TreeSegmentWidget(c, rootnode, leaves,
                                       color='white')

        # Add it to the workspace.
        self._workspace.add_widget(self._tree)

        # Move the leaves to the bottom of the workspace.
        for leaf in leaves: leaf.move(0,100)

        #self._nodes = {start:1}
        #self._leaves = dict([(l,1) for l in leaves])

    def workspace_markprod(self, production):
        pass

    def _markproduction(self, prod, tree=None):
        if tree is None: tree = self._tree
        for i in range(len(tree.subtrees())-len(prod.rhs())):
            if tree['color', i] == 'white':
                self._markproduction

            for j, node in enumerate(prod.rhs()):
                widget = tree.subtrees()[i+j]
                if (isinstance(node, Nonterminal) and
                    isinstance(widget, TreeSegmentWidget) and
                    node.symbol == widget.label().text()):
                    pass # matching nonterminal
                elif (isinstance(node, string_types) and
                      isinstance(widget, TextWidget) and
                      node == widget.text()):
                    pass # matching nonterminal
                else: break
            else:
                # Everything matched!
                print('MATCH AT', i)

    #//////////////////////////////////////////////////
    # Grammar
    #//////////////////////////////////////////////////

    def _selectprod_cb(self, production):
        canvas = self._treelet_canvas

        self._prodlist.highlight(production)
        if self._treelet is not None: self._treelet.destroy()

        # Convert the production to a tree.
        rhs = production.rhs()
        for (i, elt) in enumerate(rhs):
            if isinstance(elt, Nonterminal): elt = Tree(elt)
        tree = Tree(production.lhs().symbol(), *rhs)

        # Draw the tree in the treelet area.
        fontsize = int(self._size.get())
        node_font = ('helvetica', -(fontsize+4), 'bold')
        leaf_font = ('helvetica', -(fontsize+2))
        self._treelet = tree_to_treesegment(canvas, tree,
                                            node_font=node_font,
                                            leaf_font=leaf_font)
        self._treelet['draggable'] = 1

        # Center the treelet.
        (x1, y1, x2, y2) = self._treelet.bbox()
        w, h = int(canvas['width']), int(canvas['height'])
        self._treelet.move((w-x1-x2)/2, (h-y1-y2)/2)

        # Mark the places where we can add it to the workspace.
        self._markproduction(production)

    def destroy(self, *args):
        self._top.destroy()

    def mainloop(self, *args, **kwargs):
        self._top.mainloop(*args, **kwargs)
Beispiel #24
0
    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        self._cntx_bf_len = IntVar(self.top)
        self._cntx_af_len = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label='Exit',
                             underline=1,
                             command=self.destroy,
                             accelerator='Ctrl-q')
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(label='20',
                                   variable=self._result_size,
                                   underline=0,
                                   value=20,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='50',
                                   variable=self._result_size,
                                   underline=0,
                                   value=50,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='100',
                                   variable=self._result_size,
                                   underline=0,
                                   value=100,
                                   command=self.set_result_size)
        rescntmenu.invoke(1)
        editmenu.add_cascade(label='Result Count',
                             underline=0,
                             menu=rescntmenu)

        cntxmenu = Menu(editmenu, tearoff=0)
        cntxbfmenu = Menu(cntxmenu, tearoff=0)
        cntxbfmenu.add_radiobutton(label='60 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=60,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.add_radiobutton(label='80 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=80,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.add_radiobutton(label='100 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=100,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.invoke(1)
        cntxmenu.add_cascade(label='Before', underline=0, menu=cntxbfmenu)

        cntxafmenu = Menu(cntxmenu, tearoff=0)
        cntxafmenu.add_radiobutton(label='70 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=70,
                                   command=self.set_cntx_af_len)
        cntxafmenu.add_radiobutton(label='90 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=90,
                                   command=self.set_cntx_af_len)
        cntxafmenu.add_radiobutton(label='110 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=110,
                                   command=self.set_cntx_af_len)
        cntxafmenu.invoke(1)
        cntxmenu.add_cascade(label='After', underline=0, menu=cntxafmenu)

        editmenu.add_cascade(label='Context', underline=0, menu=cntxmenu)

        menubar.add_cascade(label='Edit', underline=0, menu=editmenu)

        self.top.config(menu=menubar)
Beispiel #25
0
class CollocationsView:
    _BACKGROUND_COLOUR = '#FFF'  # white

    def __init__(self):
        self.queue = q.Queue()
        self.model = CollocationsModel(self.queue)
        self.top = Tk()
        self._init_top(self.top)
        self._init_menubar()
        self._init_widgets(self.top)
        self.load_corpus(self.model.DEFAULT_CORPUS)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def _init_top(self, top):
        top.geometry('550x650+50+50')
        top.title('NLTK Collocations List')
        top.bind('<Control-q>', self.destroy)
        top.protocol('WM_DELETE_WINDOW', self.destroy)
        top.minsize(550, 650)

    def _init_widgets(self, parent):
        self.main_frame = Frame(
            parent,
            dict(background=self._BACKGROUND_COLOUR, padx=1, pady=1, border=1))
        self._init_corpus_select(self.main_frame)
        self._init_results_box(self.main_frame)
        self._init_paging(self.main_frame)
        self._init_status(self.main_frame)
        self.main_frame.pack(fill='both', expand=True)

    def _init_corpus_select(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.var = StringVar(innerframe)
        self.var.set(self.model.DEFAULT_CORPUS)
        Label(innerframe,
              justify=LEFT,
              text=' Corpus: ',
              background=self._BACKGROUND_COLOUR,
              padx=2,
              pady=1,
              border=0).pack(side='left')

        other_corpora = list(self.model.CORPORA.keys()).remove(
            self.model.DEFAULT_CORPUS)
        om = OptionMenu(innerframe,
                        self.var,
                        self.model.DEFAULT_CORPUS,
                        command=self.corpus_selected,
                        *self.model.non_default_corpora())
        om['borderwidth'] = 0
        om['highlightthickness'] = 1
        om.pack(side='left')
        innerframe.pack(side='top', fill='x', anchor='n')

    def _init_status(self, parent):
        self.status = Label(parent,
                            justify=LEFT,
                            relief=SUNKEN,
                            background=self._BACKGROUND_COLOUR,
                            border=0,
                            padx=1,
                            pady=0)
        self.status.pack(side='top', anchor='sw')

    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label='Exit',
                             underline=1,
                             command=self.destroy,
                             accelerator='Ctrl-q')
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(label='20',
                                   variable=self._result_size,
                                   underline=0,
                                   value=20,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='50',
                                   variable=self._result_size,
                                   underline=0,
                                   value=50,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='100',
                                   variable=self._result_size,
                                   underline=0,
                                   value=100,
                                   command=self.set_result_size)
        rescntmenu.invoke(1)
        editmenu.add_cascade(label='Result Count',
                             underline=0,
                             menu=rescntmenu)

        menubar.add_cascade(label='Edit', underline=0, menu=editmenu)
        self.top.config(menu=menubar)

    def set_result_size(self, **kwargs):
        self.model.result_count = self._result_size.get()

    def _init_results_box(self, parent):
        innerframe = Frame(parent)
        i1 = Frame(innerframe)
        i2 = Frame(innerframe)
        vscrollbar = Scrollbar(i1, borderwidth=1)
        hscrollbar = Scrollbar(i2, borderwidth=1, orient='horiz')
        self.results_box = Text(i1,
                                font=Font(family='courier', size='16'),
                                state='disabled',
                                borderwidth=1,
                                yscrollcommand=vscrollbar.set,
                                xscrollcommand=hscrollbar.set,
                                wrap='none',
                                width='40',
                                height='20',
                                exportselection=1)
        self.results_box.pack(side='left', fill='both', expand=True)
        vscrollbar.pack(side='left', fill='y', anchor='e')
        vscrollbar.config(command=self.results_box.yview)
        hscrollbar.pack(side='left', fill='x', expand=True, anchor='w')
        hscrollbar.config(command=self.results_box.xview)
        # there is no other way of avoiding the overlap of scrollbars while using pack layout manager!!!
        Label(i2, text='   ',
              background=self._BACKGROUND_COLOUR).pack(side='left', anchor='e')
        i1.pack(side='top', fill='both', expand=True, anchor='n')
        i2.pack(side='bottom', fill='x', anchor='s')
        innerframe.pack(side='top', fill='both', expand=True)

    def _init_paging(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.prev = prev = Button(innerframe,
                                  text='Previous',
                                  command=self.previous,
                                  width='10',
                                  borderwidth=1,
                                  highlightthickness=1,
                                  state='disabled')
        prev.pack(side='left', anchor='center')
        self.next = next = Button(innerframe,
                                  text='Next',
                                  command=self.__next__,
                                  width='10',
                                  borderwidth=1,
                                  highlightthickness=1,
                                  state='disabled')
        next.pack(side='right', anchor='center')
        innerframe.pack(side='top', fill='y')
        self.reset_current_page()

    def reset_current_page(self):
        self.current_page = -1

    def _poll(self):
        try:
            event = self.queue.get(block=False)
        except q.Empty:
            pass
        else:
            if event == CORPUS_LOADED_EVENT:
                self.handle_corpus_loaded(event)
            elif event == ERROR_LOADING_CORPUS_EVENT:
                self.handle_error_loading_corpus(event)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def handle_error_loading_corpus(self, event):
        self.status['text'] = 'Error in loading ' + self.var.get()
        self.unfreeze_editable()
        self.clear_results_box()
        self.freeze_editable()
        self.reset_current_page()

    def handle_corpus_loaded(self, event):
        self.status['text'] = self.var.get() + ' is loaded'
        self.unfreeze_editable()
        self.clear_results_box()
        self.reset_current_page()
        # self.next()
        collocations = self.model.next(self.current_page + 1)
        self.write_results(collocations)
        self.current_page += 1

    def corpus_selected(self, *args):
        new_selection = self.var.get()
        self.load_corpus(new_selection)

    def previous(self):
        self.freeze_editable()
        collocations = self.model.prev(self.current_page - 1)
        self.current_page = self.current_page - 1
        self.clear_results_box()
        self.write_results(collocations)
        self.unfreeze_editable()

    def __next__(self):
        self.freeze_editable()
        collocations = self.model.next(self.current_page + 1)
        self.clear_results_box()
        self.write_results(collocations)
        self.current_page += 1
        self.unfreeze_editable()

    def load_corpus(self, selection):
        if self.model.selected_corpus != selection:
            self.status['text'] = 'Loading ' + selection + '...'
            self.freeze_editable()
            self.model.load_corpus(selection)

    def freeze_editable(self):
        self.prev['state'] = 'disabled'
        self.next['state'] = 'disabled'

    def clear_results_box(self):
        self.results_box['state'] = 'normal'
        self.results_box.delete("1.0", END)
        self.results_box['state'] = 'disabled'

    def fire_event(self, event):
        # Firing an event so that rendering of widgets happen in the mainloop thread
        self.top.event_generate(event, when='tail')

    def destroy(self, *e):
        if self.top is None:
            return
        self.top.after_cancel(self.after)
        self.top.destroy()
        self.top = None

    def mainloop(self, *args, **kwargs):
        if in_idle():
            return
        self.top.mainloop(*args, **kwargs)

    def unfreeze_editable(self):
        self.set_paging_button_states()

    def set_paging_button_states(self):
        if self.current_page == -1 or self.current_page == 0:
            self.prev['state'] = 'disabled'
        else:
            self.prev['state'] = 'normal'
        if self.model.is_last_page(self.current_page):
            self.next['state'] = 'disabled'
        else:
            self.next['state'] = 'normal'

    def write_results(self, results):
        self.results_box['state'] = 'normal'
        row = 1
        for each in results:
            self.results_box.insert(
                str(row) + '.0', each[0] + " " + each[1] + "\n")
            row += 1
        self.results_box['state'] = 'disabled'
Beispiel #26
0
class ConcordanceSearchView(object):
    _BACKGROUND_COLOUR = "#FFF"  # white

    # Colour of highlighted results
    _HIGHLIGHT_WORD_COLOUR = "#F00"  # red
    _HIGHLIGHT_WORD_TAG = "HL_WRD_TAG"

    _HIGHLIGHT_LABEL_COLOUR = "#C0C0C0"  # dark grey
    _HIGHLIGHT_LABEL_TAG = "HL_LBL_TAG"

    # Percentage of text left of the scrollbar position
    _FRACTION_LEFT_TEXT = 0.30

    def __init__(self):
        self.queue = q.Queue()
        self.model = ConcordanceSearchModel(self.queue)
        self.top = Tk()
        self._init_top(self.top)
        self._init_menubar()
        self._init_widgets(self.top)
        self.load_corpus(self.model.DEFAULT_CORPUS)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def _init_top(self, top):
        top.geometry("950x680+50+50")
        top.title("NLTK Concordance Search")
        top.bind("<Control-q>", self.destroy)
        top.protocol("WM_DELETE_WINDOW", self.destroy)
        top.minsize(950, 680)

    def _init_widgets(self, parent):
        self.main_frame = Frame(
            parent,
            dict(background=self._BACKGROUND_COLOUR, padx=1, pady=1, border=1))
        self._init_corpus_select(self.main_frame)
        self._init_query_box(self.main_frame)
        self._init_results_box(self.main_frame)
        self._init_paging(self.main_frame)
        self._init_status(self.main_frame)
        self.main_frame.pack(fill="both", expand=True)

    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        self._cntx_bf_len = IntVar(self.top)
        self._cntx_af_len = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label="Exit",
                             underline=1,
                             command=self.destroy,
                             accelerator="Ctrl-q")
        menubar.add_cascade(label="File", underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(
            label="20",
            variable=self._result_size,
            underline=0,
            value=20,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="50",
            variable=self._result_size,
            underline=0,
            value=50,
            command=self.set_result_size,
        )
        rescntmenu.add_radiobutton(
            label="100",
            variable=self._result_size,
            underline=0,
            value=100,
            command=self.set_result_size,
        )
        rescntmenu.invoke(1)
        editmenu.add_cascade(label="Result Count",
                             underline=0,
                             menu=rescntmenu)

        cntxmenu = Menu(editmenu, tearoff=0)
        cntxbfmenu = Menu(cntxmenu, tearoff=0)
        cntxbfmenu.add_radiobutton(
            label="60 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=60,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.add_radiobutton(
            label="80 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=80,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.add_radiobutton(
            label="100 characters",
            variable=self._cntx_bf_len,
            underline=0,
            value=100,
            command=self.set_cntx_bf_len,
        )
        cntxbfmenu.invoke(1)
        cntxmenu.add_cascade(label="Before", underline=0, menu=cntxbfmenu)

        cntxafmenu = Menu(cntxmenu, tearoff=0)
        cntxafmenu.add_radiobutton(
            label="70 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=70,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.add_radiobutton(
            label="90 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=90,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.add_radiobutton(
            label="110 characters",
            variable=self._cntx_af_len,
            underline=0,
            value=110,
            command=self.set_cntx_af_len,
        )
        cntxafmenu.invoke(1)
        cntxmenu.add_cascade(label="After", underline=0, menu=cntxafmenu)

        editmenu.add_cascade(label="Context", underline=0, menu=cntxmenu)

        menubar.add_cascade(label="Edit", underline=0, menu=editmenu)

        self.top.config(menu=menubar)

    def set_result_size(self, **kwargs):
        self.model.result_count = self._result_size.get()

    def set_cntx_af_len(self, **kwargs):
        self._char_after = self._cntx_af_len.get()

    def set_cntx_bf_len(self, **kwargs):
        self._char_before = self._cntx_bf_len.get()

    def _init_corpus_select(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.var = StringVar(innerframe)
        self.var.set(self.model.DEFAULT_CORPUS)
        Label(
            innerframe,
            justify=LEFT,
            text=" Corpus: ",
            background=self._BACKGROUND_COLOUR,
            padx=2,
            pady=1,
            border=0,
        ).pack(side="left")

        other_corpora = list(self.model.CORPORA.keys()).remove(
            self.model.DEFAULT_CORPUS)
        om = OptionMenu(innerframe,
                        self.var,
                        self.model.DEFAULT_CORPUS,
                        command=self.corpus_selected,
                        *self.model.non_default_corpora())
        om["borderwidth"] = 0
        om["highlightthickness"] = 1
        om.pack(side="left")
        innerframe.pack(side="top", fill="x", anchor="n")

    def _init_status(self, parent):
        self.status = Label(
            parent,
            justify=LEFT,
            relief=SUNKEN,
            background=self._BACKGROUND_COLOUR,
            border=0,
            padx=1,
            pady=0,
        )
        self.status.pack(side="top", anchor="sw")

    def _init_query_box(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        another = Frame(innerframe, background=self._BACKGROUND_COLOUR)
        self.query_box = Entry(another, width=60)
        self.query_box.pack(side="left", fill="x", pady=25, anchor="center")
        self.search_button = Button(
            another,
            text="Search",
            command=self.search,
            borderwidth=1,
            highlightthickness=1,
        )
        self.search_button.pack(side="left",
                                fill="x",
                                pady=25,
                                anchor="center")
        self.query_box.bind("<KeyPress-Return>",
                            self.search_enter_keypress_handler)
        another.pack()
        innerframe.pack(side="top", fill="x", anchor="n")

    def search_enter_keypress_handler(self, *event):
        self.search()

    def _init_results_box(self, parent):
        innerframe = Frame(parent)
        i1 = Frame(innerframe)
        i2 = Frame(innerframe)
        vscrollbar = Scrollbar(i1, borderwidth=1)
        hscrollbar = Scrollbar(i2, borderwidth=1, orient="horiz")
        self.results_box = Text(
            i1,
            font=Font(family="courier", size="16"),
            state="disabled",
            borderwidth=1,
            yscrollcommand=vscrollbar.set,
            xscrollcommand=hscrollbar.set,
            wrap="none",
            width="40",
            height="20",
            exportselection=1,
        )
        self.results_box.pack(side="left", fill="both", expand=True)
        self.results_box.tag_config(self._HIGHLIGHT_WORD_TAG,
                                    foreground=self._HIGHLIGHT_WORD_COLOUR)
        self.results_box.tag_config(self._HIGHLIGHT_LABEL_TAG,
                                    foreground=self._HIGHLIGHT_LABEL_COLOUR)
        vscrollbar.pack(side="left", fill="y", anchor="e")
        vscrollbar.config(command=self.results_box.yview)
        hscrollbar.pack(side="left", fill="x", expand=True, anchor="w")
        hscrollbar.config(command=self.results_box.xview)
        # there is no other way of avoiding the overlap of scrollbars while using pack layout manager!!!
        Label(i2, text="   ",
              background=self._BACKGROUND_COLOUR).pack(side="left", anchor="e")
        i1.pack(side="top", fill="both", expand=True, anchor="n")
        i2.pack(side="bottom", fill="x", anchor="s")
        innerframe.pack(side="top", fill="both", expand=True)

    def _init_paging(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.prev = prev = Button(
            innerframe,
            text="Previous",
            command=self.previous,
            width="10",
            borderwidth=1,
            highlightthickness=1,
            state="disabled",
        )
        prev.pack(side="left", anchor="center")
        self.next = next = Button(
            innerframe,
            text="Next",
            command=self.__next__,
            width="10",
            borderwidth=1,
            highlightthickness=1,
            state="disabled",
        )
        next.pack(side="right", anchor="center")
        innerframe.pack(side="top", fill="y")
        self.current_page = 0

    def previous(self):
        self.clear_results_box()
        self.freeze_editable()
        self.model.prev(self.current_page - 1)

    def __next__(self):
        self.clear_results_box()
        self.freeze_editable()
        self.model.next(self.current_page + 1)

    def about(self, *e):
        ABOUT = "NLTK Concordance Search Demo\n"
        TITLE = "About: NLTK Concordance Search Demo"
        try:
            from six.moves.tkinter_messagebox import Message

            Message(message=ABOUT, title=TITLE, parent=self.main_frame).show()
        except:
            ShowText(self.top, TITLE, ABOUT)

    def _bind_event_handlers(self):
        self.top.bind(CORPUS_LOADED_EVENT, self.handle_corpus_loaded)
        self.top.bind(SEARCH_TERMINATED_EVENT, self.handle_search_terminated)
        self.top.bind(SEARCH_ERROR_EVENT, self.handle_search_error)
        self.top.bind(ERROR_LOADING_CORPUS_EVENT,
                      self.handle_error_loading_corpus)

    def _poll(self):
        try:
            event = self.queue.get(block=False)
        except q.Empty:
            pass
        else:
            if event == CORPUS_LOADED_EVENT:
                self.handle_corpus_loaded(event)
            elif event == SEARCH_TERMINATED_EVENT:
                self.handle_search_terminated(event)
            elif event == SEARCH_ERROR_EVENT:
                self.handle_search_error(event)
            elif event == ERROR_LOADING_CORPUS_EVENT:
                self.handle_error_loading_corpus(event)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def handle_error_loading_corpus(self, event):
        self.status["text"] = "Error in loading " + self.var.get()
        self.unfreeze_editable()
        self.clear_all()
        self.freeze_editable()

    def handle_corpus_loaded(self, event):
        self.status["text"] = self.var.get() + " is loaded"
        self.unfreeze_editable()
        self.clear_all()
        self.query_box.focus_set()

    def handle_search_terminated(self, event):
        # todo: refactor the model such that it is less state sensitive
        results = self.model.get_results()
        self.write_results(results)
        self.status["text"] = ""
        if len(results) == 0:
            self.status["text"] = "No results found for " + self.model.query
        else:
            self.current_page = self.model.last_requested_page
        self.unfreeze_editable()
        self.results_box.xview_moveto(self._FRACTION_LEFT_TEXT)

    def handle_search_error(self, event):
        self.status["text"] = "Error in query " + self.model.query
        self.unfreeze_editable()

    def corpus_selected(self, *args):
        new_selection = self.var.get()
        self.load_corpus(new_selection)

    def load_corpus(self, selection):
        if self.model.selected_corpus != selection:
            self.status["text"] = "Loading " + selection + "..."
            self.freeze_editable()
            self.model.load_corpus(selection)

    def search(self):
        self.current_page = 0
        self.clear_results_box()
        self.model.reset_results()
        query = self.query_box.get()
        if len(query.strip()) == 0:
            return
        self.status["text"] = "Searching for " + query
        self.freeze_editable()
        self.model.search(query, self.current_page + 1)

    def write_results(self, results):
        self.results_box["state"] = "normal"
        row = 1
        for each in results:
            sent, pos1, pos2 = each[0].strip(), each[1], each[2]
            if len(sent) != 0:
                if pos1 < self._char_before:
                    sent, pos1, pos2 = self.pad(sent, pos1, pos2)
                sentence = sent[pos1 - self._char_before:pos1 +
                                self._char_after]
                if not row == len(results):
                    sentence += "\n"
                self.results_box.insert(str(row) + ".0", sentence)
                word_markers, label_markers = self.words_and_labels(
                    sent, pos1, pos2)
                for marker in word_markers:
                    self.results_box.tag_add(
                        self._HIGHLIGHT_WORD_TAG,
                        str(row) + "." + str(marker[0]),
                        str(row) + "." + str(marker[1]),
                    )
                for marker in label_markers:
                    self.results_box.tag_add(
                        self._HIGHLIGHT_LABEL_TAG,
                        str(row) + "." + str(marker[0]),
                        str(row) + "." + str(marker[1]),
                    )
                row += 1
        self.results_box["state"] = "disabled"

    def words_and_labels(self, sentence, pos1, pos2):
        search_exp = sentence[pos1:pos2]
        words, labels = [], []
        labeled_words = search_exp.split(" ")
        index = 0
        for each in labeled_words:
            if each == "":
                index += 1
            else:
                word, label = each.split("/")
                words.append((self._char_before + index,
                              self._char_before + index + len(word)))
                index += len(word) + 1
                labels.append((self._char_before + index,
                               self._char_before + index + len(label)))
                index += len(label)
            index += 1
        return words, labels

    def pad(self, sent, hstart, hend):
        if hstart >= self._char_before:
            return sent, hstart, hend
        d = self._char_before - hstart
        sent = "".join([" "] * d) + sent
        return sent, hstart + d, hend + d

    def destroy(self, *e):
        if self.top is None:
            return
        self.top.after_cancel(self.after)
        self.top.destroy()
        self.top = None

    def clear_all(self):
        self.query_box.delete(0, END)
        self.model.reset_query()
        self.clear_results_box()

    def clear_results_box(self):
        self.results_box["state"] = "normal"
        self.results_box.delete("1.0", END)
        self.results_box["state"] = "disabled"

    def freeze_editable(self):
        self.query_box["state"] = "disabled"
        self.search_button["state"] = "disabled"
        self.prev["state"] = "disabled"
        self.next["state"] = "disabled"

    def unfreeze_editable(self):
        self.query_box["state"] = "normal"
        self.search_button["state"] = "normal"
        self.set_paging_button_states()

    def set_paging_button_states(self):
        if self.current_page == 0 or self.current_page == 1:
            self.prev["state"] = "disabled"
        else:
            self.prev["state"] = "normal"
        if self.model.has_more_pages(self.current_page):
            self.next["state"] = "normal"
        else:
            self.next["state"] = "disabled"

    def fire_event(self, event):
        # Firing an event so that rendering of widgets happen in the mainloop thread
        self.top.event_generate(event, when="tail")

    def mainloop(self, *args, **kwargs):
        if in_idle():
            return
        self.top.mainloop(*args, **kwargs)
class ShiftReduceApp(object):
    """
    A graphical tool for exploring the shift-reduce parser.  The tool
    displays the parser's stack and the remaining text, and allows the
    user to control the parser's operation.  In particular, the user
    can shift tokens onto the stack, and can perform reductions on the
    top elements of the stack.  A "step" button simply steps through
    the parsing process, performing the operations that
    ``nltk.parse.ShiftReduceParser`` would use.
    """

    def __init__(self, grammar, sent, trace=0):
        self._sent = sent
        self._parser = SteppingShiftReduceParser(grammar, trace)

        # Set up the main window.
        self._top = Tk()
        self._top.title('Shift Reduce Parser Application')

        # Animations.  animating_lock is a lock to prevent the demo
        # from performing new operations while it's animating.
        self._animating_lock = 0
        self._animate = IntVar(self._top)
        self._animate.set(10)  # = medium

        # The user can hide the grammar.
        self._show_grammar = IntVar(self._top)
        self._show_grammar.set(1)

        # Initialize fonts.
        self._init_fonts(self._top)

        # Set up key bindings.
        self._init_bindings()

        # Create the basic frames.
        self._init_menubar(self._top)
        self._init_buttons(self._top)
        self._init_feedback(self._top)
        self._init_grammar(self._top)
        self._init_canvas(self._top)

        # A popup menu for reducing.
        self._reduce_menu = Menu(self._canvas, tearoff=0)

        # Reset the demo, and set the feedback frame to empty.
        self.reset()
        self._lastoper1['text'] = ''

    #########################################
    ##  Initialization Helpers
    #########################################

    def _init_fonts(self, root):
        # See: <http://www.astro.washington.edu/owen/ROTKFolklore.html>
        self._sysfont = Font(font=Button()["font"])
        root.option_add("*Font", self._sysfont)

        # TWhat's our font size (default=same as sysfont)
        self._size = IntVar(root)
        self._size.set(self._sysfont.cget('size'))

        self._boldfont = Font(family='helvetica', weight='bold', size=self._size.get())
        self._font = Font(family='helvetica', size=self._size.get())

    def _init_grammar(self, parent):
        # Grammar view.
        self._prodframe = listframe = Frame(parent)
        self._prodframe.pack(fill='both', side='left', padx=2)
        self._prodlist_label = Label(
            self._prodframe, font=self._boldfont, text='Available Reductions'
        )
        self._prodlist_label.pack()
        self._prodlist = Listbox(
            self._prodframe,
            selectmode='single',
            relief='groove',
            background='white',
            foreground='#909090',
            font=self._font,
            selectforeground='#004040',
            selectbackground='#c0f0c0',
        )

        self._prodlist.pack(side='right', fill='both', expand=1)

        self._productions = list(self._parser.grammar().productions())
        for production in self._productions:
            self._prodlist.insert('end', (' %s' % production))
        self._prodlist.config(height=min(len(self._productions), 25))

        # Add a scrollbar if there are more than 25 productions.
        if 1:  # len(self._productions) > 25:
            listscroll = Scrollbar(self._prodframe, orient='vertical')
            self._prodlist.config(yscrollcommand=listscroll.set)
            listscroll.config(command=self._prodlist.yview)
            listscroll.pack(side='left', fill='y')

        # If they select a production, apply it.
        self._prodlist.bind('<<ListboxSelect>>', self._prodlist_select)

        # When they hover over a production, highlight it.
        self._hover = -1
        self._prodlist.bind('<Motion>', self._highlight_hover)
        self._prodlist.bind('<Leave>', self._clear_hover)

    def _init_bindings(self):
        # Quit
        self._top.bind('<Control-q>', self.destroy)
        self._top.bind('<Control-x>', self.destroy)
        self._top.bind('<Alt-q>', self.destroy)
        self._top.bind('<Alt-x>', self.destroy)

        # Ops (step, shift, reduce, undo)
        self._top.bind('<space>', self.step)
        self._top.bind('<s>', self.shift)
        self._top.bind('<Alt-s>', self.shift)
        self._top.bind('<Control-s>', self.shift)
        self._top.bind('<r>', self.reduce)
        self._top.bind('<Alt-r>', self.reduce)
        self._top.bind('<Control-r>', self.reduce)
        self._top.bind('<Delete>', self.reset)
        self._top.bind('<u>', self.undo)
        self._top.bind('<Alt-u>', self.undo)
        self._top.bind('<Control-u>', self.undo)
        self._top.bind('<Control-z>', self.undo)
        self._top.bind('<BackSpace>', self.undo)

        # Misc
        self._top.bind('<Control-p>', self.postscript)
        self._top.bind('<Control-h>', self.help)
        self._top.bind('<F1>', self.help)
        self._top.bind('<Control-g>', self.edit_grammar)
        self._top.bind('<Control-t>', self.edit_sentence)

        # Animation speed control
        self._top.bind('-', lambda e, a=self._animate: a.set(20))
        self._top.bind('=', lambda e, a=self._animate: a.set(10))
        self._top.bind('+', lambda e, a=self._animate: a.set(4))

    def _init_buttons(self, parent):
        # Set up the frames.
        self._buttonframe = buttonframe = Frame(parent)
        buttonframe.pack(fill='none', side='bottom')
        Button(
            buttonframe,
            text='Step',
            background='#90c0d0',
            foreground='black',
            command=self.step,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Shift',
            underline=0,
            background='#90f090',
            foreground='black',
            command=self.shift,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Reduce',
            underline=0,
            background='#90f090',
            foreground='black',
            command=self.reduce,
        ).pack(side='left')
        Button(
            buttonframe,
            text='Undo',
            underline=0,
            background='#f0a0a0',
            foreground='black',
            command=self.undo,
        ).pack(side='left')

    def _init_menubar(self, parent):
        menubar = Menu(parent)

        filemenu = Menu(menubar, tearoff=0)
        filemenu.add_command(
            label='Reset Parser', underline=0, command=self.reset, accelerator='Del'
        )
        filemenu.add_command(
            label='Print to Postscript',
            underline=0,
            command=self.postscript,
            accelerator='Ctrl-p',
        )
        filemenu.add_command(
            label='Exit', underline=1, command=self.destroy, accelerator='Ctrl-x'
        )
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        editmenu.add_command(
            label='Edit Grammar',
            underline=5,
            command=self.edit_grammar,
            accelerator='Ctrl-g',
        )
        editmenu.add_command(
            label='Edit Text',
            underline=5,
            command=self.edit_sentence,
            accelerator='Ctrl-t',
        )
        menubar.add_cascade(label='Edit', underline=0, menu=editmenu)

        rulemenu = Menu(menubar, tearoff=0)
        rulemenu.add_command(
            label='Step', underline=1, command=self.step, accelerator='Space'
        )
        rulemenu.add_separator()
        rulemenu.add_command(
            label='Shift', underline=0, command=self.shift, accelerator='Ctrl-s'
        )
        rulemenu.add_command(
            label='Reduce', underline=0, command=self.reduce, accelerator='Ctrl-r'
        )
        rulemenu.add_separator()
        rulemenu.add_command(
            label='Undo', underline=0, command=self.undo, accelerator='Ctrl-u'
        )
        menubar.add_cascade(label='Apply', underline=0, menu=rulemenu)

        viewmenu = Menu(menubar, tearoff=0)
        viewmenu.add_checkbutton(
            label="Show Grammar",
            underline=0,
            variable=self._show_grammar,
            command=self._toggle_grammar,
        )
        viewmenu.add_separator()
        viewmenu.add_radiobutton(
            label='Tiny',
            variable=self._size,
            underline=0,
            value=10,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Small',
            variable=self._size,
            underline=0,
            value=12,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Medium',
            variable=self._size,
            underline=0,
            value=14,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Large',
            variable=self._size,
            underline=0,
            value=18,
            command=self.resize,
        )
        viewmenu.add_radiobutton(
            label='Huge',
            variable=self._size,
            underline=0,
            value=24,
            command=self.resize,
        )
        menubar.add_cascade(label='View', underline=0, menu=viewmenu)

        animatemenu = Menu(menubar, tearoff=0)
        animatemenu.add_radiobutton(
            label="No Animation", underline=0, variable=self._animate, value=0
        )
        animatemenu.add_radiobutton(
            label="Slow Animation",
            underline=0,
            variable=self._animate,
            value=20,
            accelerator='-',
        )
        animatemenu.add_radiobutton(
            label="Normal Animation",
            underline=0,
            variable=self._animate,
            value=10,
            accelerator='=',
        )
        animatemenu.add_radiobutton(
            label="Fast Animation",
            underline=0,
            variable=self._animate,
            value=4,
            accelerator='+',
        )
        menubar.add_cascade(label="Animate", underline=1, menu=animatemenu)

        helpmenu = Menu(menubar, tearoff=0)
        helpmenu.add_command(label='About', underline=0, command=self.about)
        helpmenu.add_command(
            label='Instructions', underline=0, command=self.help, accelerator='F1'
        )
        menubar.add_cascade(label='Help', underline=0, menu=helpmenu)

        parent.config(menu=menubar)

    def _init_feedback(self, parent):
        self._feedbackframe = feedbackframe = Frame(parent)
        feedbackframe.pack(fill='x', side='bottom', padx=3, pady=3)
        self._lastoper_label = Label(
            feedbackframe, text='Last Operation:', font=self._font
        )
        self._lastoper_label.pack(side='left')
        lastoperframe = Frame(feedbackframe, relief='sunken', border=1)
        lastoperframe.pack(fill='x', side='right', expand=1, padx=5)
        self._lastoper1 = Label(
            lastoperframe, foreground='#007070', background='#f0f0f0', font=self._font
        )
        self._lastoper2 = Label(
            lastoperframe,
            anchor='w',
            width=30,
            foreground='#004040',
            background='#f0f0f0',
            font=self._font,
        )
        self._lastoper1.pack(side='left')
        self._lastoper2.pack(side='left', fill='x', expand=1)

    def _init_canvas(self, parent):
        self._cframe = CanvasFrame(
            parent,
            background='white',
            width=525,
            closeenough=10,
            border=2,
            relief='sunken',
        )
        self._cframe.pack(expand=1, fill='both', side='top', pady=2)
        canvas = self._canvas = self._cframe.canvas()

        self._stackwidgets = []
        self._rtextwidgets = []
        self._titlebar = canvas.create_rectangle(
            0, 0, 0, 0, fill='#c0f0f0', outline='black'
        )
        self._exprline = canvas.create_line(0, 0, 0, 0, dash='.')
        self._stacktop = canvas.create_line(0, 0, 0, 0, fill='#408080')
        size = self._size.get() + 4
        self._stacklabel = TextWidget(
            canvas, 'Stack', color='#004040', font=self._boldfont
        )
        self._rtextlabel = TextWidget(
            canvas, 'Remaining Text', color='#004040', font=self._boldfont
        )
        self._cframe.add_widget(self._stacklabel)
        self._cframe.add_widget(self._rtextlabel)

    #########################################
    ##  Main draw procedure
    #########################################

    def _redraw(self):
        scrollregion = self._canvas['scrollregion'].split()
        (cx1, cy1, cx2, cy2) = [int(c) for c in scrollregion]

        # Delete the old stack & rtext widgets.
        for stackwidget in self._stackwidgets:
            self._cframe.destroy_widget(stackwidget)
        self._stackwidgets = []
        for rtextwidget in self._rtextwidgets:
            self._cframe.destroy_widget(rtextwidget)
        self._rtextwidgets = []

        # Position the titlebar & exprline
        (x1, y1, x2, y2) = self._stacklabel.bbox()
        y = y2 - y1 + 10
        self._canvas.coords(self._titlebar, -5000, 0, 5000, y - 4)
        self._canvas.coords(self._exprline, 0, y * 2 - 10, 5000, y * 2 - 10)

        # Position the titlebar labels..
        (x1, y1, x2, y2) = self._stacklabel.bbox()
        self._stacklabel.move(5 - x1, 3 - y1)
        (x1, y1, x2, y2) = self._rtextlabel.bbox()
        self._rtextlabel.move(cx2 - x2 - 5, 3 - y1)

        # Draw the stack.
        stackx = 5
        for tok in self._parser.stack():
            if isinstance(tok, Tree):
                attribs = {
                    'tree_color': '#4080a0',
                    'tree_width': 2,
                    'node_font': self._boldfont,
                    'node_color': '#006060',
                    'leaf_color': '#006060',
                    'leaf_font': self._font,
                }
                widget = tree_to_treesegment(self._canvas, tok, **attribs)
                widget.label()['color'] = '#000000'
            else:
                widget = TextWidget(self._canvas, tok, color='#000000', font=self._font)
            widget.bind_click(self._popup_reduce)
            self._stackwidgets.append(widget)
            self._cframe.add_widget(widget, stackx, y)
            stackx = widget.bbox()[2] + 10

        # Draw the remaining text.
        rtextwidth = 0
        for tok in self._parser.remaining_text():
            widget = TextWidget(self._canvas, tok, color='#000000', font=self._font)
            self._rtextwidgets.append(widget)
            self._cframe.add_widget(widget, rtextwidth, y)
            rtextwidth = widget.bbox()[2] + 4

        # Allow enough room to shift the next token (for animations)
        if len(self._rtextwidgets) > 0:
            stackx += self._rtextwidgets[0].width()

        # Move the remaining text to the correct location (keep it
        # right-justified, when possible); and move the remaining text
        # label, if necessary.
        stackx = max(stackx, self._stacklabel.width() + 25)
        rlabelwidth = self._rtextlabel.width() + 10
        if stackx >= cx2 - max(rtextwidth, rlabelwidth):
            cx2 = stackx + max(rtextwidth, rlabelwidth)
        for rtextwidget in self._rtextwidgets:
            rtextwidget.move(4 + cx2 - rtextwidth, 0)
        self._rtextlabel.move(cx2 - self._rtextlabel.bbox()[2] - 5, 0)

        midx = (stackx + cx2 - max(rtextwidth, rlabelwidth)) / 2
        self._canvas.coords(self._stacktop, midx, 0, midx, 5000)
        (x1, y1, x2, y2) = self._stacklabel.bbox()

        # Set up binding to allow them to shift a token by dragging it.
        if len(self._rtextwidgets) > 0:

            def drag_shift(widget, midx=midx, self=self):
                if widget.bbox()[0] < midx:
                    self.shift()
                else:
                    self._redraw()

            self._rtextwidgets[0].bind_drag(drag_shift)
            self._rtextwidgets[0].bind_click(self.shift)

        # Draw the stack top.
        self._highlight_productions()

    def _draw_stack_top(self, widget):
        # hack..
        midx = widget.bbox()[2] + 50
        self._canvas.coords(self._stacktop, midx, 0, midx, 5000)

    def _highlight_productions(self):
        # Highlight the productions that can be reduced.
        self._prodlist.selection_clear(0, 'end')
        for prod in self._parser.reducible_productions():
            index = self._productions.index(prod)
            self._prodlist.selection_set(index)

    #########################################
    ##  Button Callbacks
    #########################################

    def destroy(self, *e):
        if self._top is None:
            return
        self._top.destroy()
        self._top = None

    def reset(self, *e):
        self._parser.initialize(self._sent)
        self._lastoper1['text'] = 'Reset App'
        self._lastoper2['text'] = ''
        self._redraw()

    def step(self, *e):
        if self.reduce():
            return True
        elif self.shift():
            return True
        else:
            if list(self._parser.parses()):
                self._lastoper1['text'] = 'Finished:'
                self._lastoper2['text'] = 'Success'
            else:
                self._lastoper1['text'] = 'Finished:'
                self._lastoper2['text'] = 'Failure'

    def shift(self, *e):
        if self._animating_lock:
            return
        if self._parser.shift():
            tok = self._parser.stack()[-1]
            self._lastoper1['text'] = 'Shift:'
            self._lastoper2['text'] = '%r' % tok
            if self._animate.get():
                self._animate_shift()
            else:
                self._redraw()
            return True
        return False

    def reduce(self, *e):
        if self._animating_lock:
            return
        production = self._parser.reduce()
        if production:
            self._lastoper1['text'] = 'Reduce:'
            self._lastoper2['text'] = '%s' % production
            if self._animate.get():
                self._animate_reduce()
            else:
                self._redraw()
        return production

    def undo(self, *e):
        if self._animating_lock:
            return
        if self._parser.undo():
            self._redraw()

    def postscript(self, *e):
        self._cframe.print_to_file()

    def mainloop(self, *args, **kwargs):
        """
        Enter the Tkinter mainloop.  This function must be called if
        this demo is created from a non-interactive program (e.g.
        from a secript); otherwise, the demo will close as soon as
        the script completes.
        """
        if in_idle():
            return
        self._top.mainloop(*args, **kwargs)

    #########################################
    ##  Menubar callbacks
    #########################################

    def resize(self, size=None):
        if size is not None:
            self._size.set(size)
        size = self._size.get()
        self._font.configure(size=-(abs(size)))
        self._boldfont.configure(size=-(abs(size)))
        self._sysfont.configure(size=-(abs(size)))

        # self._stacklabel['font'] = ('helvetica', -size-4, 'bold')
        # self._rtextlabel['font'] = ('helvetica', -size-4, 'bold')
        # self._lastoper_label['font'] = ('helvetica', -size)
        # self._lastoper1['font'] = ('helvetica', -size)
        # self._lastoper2['font'] = ('helvetica', -size)
        # self._prodlist['font'] = ('helvetica', -size)
        # self._prodlist_label['font'] = ('helvetica', -size-2, 'bold')
        self._redraw()

    def help(self, *e):
        # The default font's not very legible; try using 'fixed' instead.
        try:
            ShowText(
                self._top,
                'Help: Shift-Reduce Parser Application',
                (__doc__ or '').strip(),
                width=75,
                font='fixed',
            )
        except:
            ShowText(
                self._top,
                'Help: Shift-Reduce Parser Application',
                (__doc__ or '').strip(),
                width=75,
            )

    def about(self, *e):
        ABOUT = "NLTK Shift-Reduce Parser Application\n" + "Written by Edward Loper"
        TITLE = 'About: Shift-Reduce Parser Application'
        try:
            from six.moves.tkinter_messagebox import Message

            Message(message=ABOUT, title=TITLE).show()
        except:
            ShowText(self._top, TITLE, ABOUT)

    def edit_grammar(self, *e):
        CFGEditor(self._top, self._parser.grammar(), self.set_grammar)

    def set_grammar(self, grammar):
        self._parser.set_grammar(grammar)
        self._productions = list(grammar.productions())
        self._prodlist.delete(0, 'end')
        for production in self._productions:
            self._prodlist.insert('end', (' %s' % production))

    def edit_sentence(self, *e):
        sentence = " ".join(self._sent)
        title = 'Edit Text'
        instr = 'Enter a new sentence to parse.'
        EntryDialog(self._top, sentence, instr, self.set_sentence, title)

    def set_sentence(self, sent):
        self._sent = sent.split()  # [XX] use tagged?
        self.reset()

    #########################################
    ##  Reduce Production Selection
    #########################################

    def _toggle_grammar(self, *e):
        if self._show_grammar.get():
            self._prodframe.pack(
                fill='both', side='left', padx=2, after=self._feedbackframe
            )
            self._lastoper1['text'] = 'Show Grammar'
        else:
            self._prodframe.pack_forget()
            self._lastoper1['text'] = 'Hide Grammar'
        self._lastoper2['text'] = ''

    def _prodlist_select(self, event):
        selection = self._prodlist.curselection()
        if len(selection) != 1:
            return
        index = int(selection[0])
        production = self._parser.reduce(self._productions[index])
        if production:
            self._lastoper1['text'] = 'Reduce:'
            self._lastoper2['text'] = '%s' % production
            if self._animate.get():
                self._animate_reduce()
            else:
                self._redraw()
        else:
            # Reset the production selections.
            self._prodlist.selection_clear(0, 'end')
            for prod in self._parser.reducible_productions():
                index = self._productions.index(prod)
                self._prodlist.selection_set(index)

    def _popup_reduce(self, widget):
        # Remove old commands.
        productions = self._parser.reducible_productions()
        if len(productions) == 0:
            return

        self._reduce_menu.delete(0, 'end')
        for production in productions:
            self._reduce_menu.add_command(label=str(production), command=self.reduce)
        self._reduce_menu.post(
            self._canvas.winfo_pointerx(), self._canvas.winfo_pointery()
        )

    #########################################
    ##  Animations
    #########################################

    def _animate_shift(self):
        # What widget are we shifting?
        widget = self._rtextwidgets[0]

        # Where are we shifting from & to?
        right = widget.bbox()[0]
        if len(self._stackwidgets) == 0:
            left = 5
        else:
            left = self._stackwidgets[-1].bbox()[2] + 10

        # Start animating.
        dt = self._animate.get()
        dx = (left - right) * 1.0 / dt
        self._animate_shift_frame(dt, widget, dx)

    def _animate_shift_frame(self, frame, widget, dx):
        if frame > 0:
            self._animating_lock = 1
            widget.move(dx, 0)
            self._top.after(10, self._animate_shift_frame, frame - 1, widget, dx)
        else:
            # but: stacktop??

            # Shift the widget to the stack.
            del self._rtextwidgets[0]
            self._stackwidgets.append(widget)
            self._animating_lock = 0

            # Display the available productions.
            self._draw_stack_top(widget)
            self._highlight_productions()

    def _animate_reduce(self):
        # What widgets are we shifting?
        numwidgets = len(self._parser.stack()[-1])  # number of children
        widgets = self._stackwidgets[-numwidgets:]

        # How far are we moving?
        if isinstance(widgets[0], TreeSegmentWidget):
            ydist = 15 + widgets[0].label().height()
        else:
            ydist = 15 + widgets[0].height()

        # Start animating.
        dt = self._animate.get()
        dy = ydist * 2.0 / dt
        self._animate_reduce_frame(dt / 2, widgets, dy)

    def _animate_reduce_frame(self, frame, widgets, dy):
        if frame > 0:
            self._animating_lock = 1
            for widget in widgets:
                widget.move(0, dy)
            self._top.after(10, self._animate_reduce_frame, frame - 1, widgets, dy)
        else:
            del self._stackwidgets[-len(widgets) :]
            for widget in widgets:
                self._cframe.remove_widget(widget)
            tok = self._parser.stack()[-1]
            if not isinstance(tok, Tree):
                raise ValueError()
            label = TextWidget(
                self._canvas, str(tok.label()), color='#006060', font=self._boldfont
            )
            widget = TreeSegmentWidget(self._canvas, label, widgets, width=2)
            (x1, y1, x2, y2) = self._stacklabel.bbox()
            y = y2 - y1 + 10
            if not self._stackwidgets:
                x = 5
            else:
                x = self._stackwidgets[-1].bbox()[2] + 10
            self._cframe.add_widget(widget, x, y)
            self._stackwidgets.append(widget)

            # Display the available productions.
            self._draw_stack_top(widget)
            self._highlight_productions()

            #             # Delete the old widgets..
            #             del self._stackwidgets[-len(widgets):]
            #             for widget in widgets:
            #                 self._cframe.destroy_widget(widget)
            #
            #             # Make a new one.
            #             tok = self._parser.stack()[-1]
            #             if isinstance(tok, Tree):
            #                 attribs = {'tree_color': '#4080a0', 'tree_width': 2,
            #                            'node_font': bold, 'node_color': '#006060',
            #                            'leaf_color': '#006060', 'leaf_font':self._font}
            #                 widget = tree_to_treesegment(self._canvas, tok.type(),
            #                                              **attribs)
            #                 widget.node()['color'] = '#000000'
            #             else:
            #                 widget = TextWidget(self._canvas, tok.type(),
            #                                     color='#000000', font=self._font)
            #             widget.bind_click(self._popup_reduce)
            #             (x1, y1, x2, y2) = self._stacklabel.bbox()
            #             y = y2-y1+10
            #             if not self._stackwidgets: x = 5
            #             else: x = self._stackwidgets[-1].bbox()[2] + 10
            #             self._cframe.add_widget(widget, x, y)
            #             self._stackwidgets.append(widget)

            # self._redraw()
            self._animating_lock = 0

    #########################################
    ##  Hovering.
    #########################################

    def _highlight_hover(self, event):
        # What production are we hovering over?
        index = self._prodlist.nearest(event.y)
        if self._hover == index:
            return

        # Clear any previous hover highlighting.
        self._clear_hover()

        # If the production corresponds to an available reduction,
        # highlight the stack.
        selection = [int(s) for s in self._prodlist.curselection()]
        if index in selection:
            rhslen = len(self._productions[index].rhs())
            for stackwidget in self._stackwidgets[-rhslen:]:
                if isinstance(stackwidget, TreeSegmentWidget):
                    stackwidget.label()['color'] = '#00a000'
                else:
                    stackwidget['color'] = '#00a000'

        # Remember what production we're hovering over.
        self._hover = index

    def _clear_hover(self, *event):
        # Clear any previous hover highlighting.
        if self._hover == -1:
            return
        self._hover = -1
        for stackwidget in self._stackwidgets:
            if isinstance(stackwidget, TreeSegmentWidget):
                stackwidget.label()['color'] = 'black'
            else:
                stackwidget['color'] = 'black'
Beispiel #28
0
class ShipPanel(Frame):
    '''
    Panel that keeps track of your ships as they get placed onto the board.
    '''

    ########### geometry ##########
    WIDTH = 150
    ###############################

    ########### states ############
    UNPLACED = 0
    PLACED = 1
    SUNK = 2  # <-- should be unused
    ###############################

    ########### colors ############
    UNPLACED_COLOR = "black"
    PLACED_COLOR = "forest green"
    SUNK_COLOR = "red"  #<-- should be unused

    ###############################

    def __init__(self, master):
        '''Create a new ship panel.
        <master> is the parent TKinter element.'''

        Frame.__init__(self, master)
        self._create_ui()
        #self.reset()

    def _create_ui(self):
        '''Create the UI for this panel.'''

        self._ship_var = IntVar()
        self.ship_buttons = {}

        for i, ship in enumerate(Ship.SHORT_NAMES):
            b = Radiobutton(self,
                            text=Ship.NAMES[ship].title(),
                            value=i,
                            variable=self._ship_var,
                            indicatoron=False)
            b.pack(anchor=W, pady=10)
            b.grid(sticky=N + S + E + W)

            # and a sort-of experimental feature...
            b.ship_state = self.UNPLACED

            # save it
            self.ship_buttons[ship] = b

    def reset(self):
        '''Return this panel to its starting state.'''

        self.unselect_ship()
        for ship in Ship.SIZES.keys():
            self.set_state(ship, self.UNPLACED)

    @staticmethod
    def get_state_color(state):
        '''Return the color based on the state.'''

        return {
            ShipPanel.UNPLACED: ShipPanel.UNPLACED_COLOR,
            ShipPanel.PLACED: ShipPanel.PLACED_COLOR,
            ShipPanel.SUNK: ShipPanel.SUNK_COLOR
        }[state]

    def redraw(self, model):
        '''Redraw the entire panel based on the model.
        <model> is the ship grid.'''

        for ship_name in model.get_ship_placement().keys():
            self.set_placed(ship_name)

    def click(self, ship):
        '''Click given button.'''

        self.ship_buttons[ship].invoke()

    def set_state(self, ship, state):
        '''Change the state of the given ship.'''

        self.ship_buttons[ship].ship_state = state
        self.ship_buttons[ship].config(foreground=self.get_state_color(state))

    def set_placed(self, ship):
        '''Set the ship as placed.'''

        self.set_state(ship, self.PLACED)

    def set_sunk(self, ship):
        '''Set the ship as sunk.'''

        self.set_state(ship, self.SUNK)

    def unselect_ship(self):
        '''Unselect all ships.'''

        self._ship_var.set(len(Ship.SHIPS) + 1)

    def get_current_ship(self):
        '''Return the ship currently selected.'''

        if self._ship_var.get() > len(Ship.SHIPS):
            return None
        else:
            return Ship.SHORT_NAMES[self._ship_var.get()]
Beispiel #29
0
class ConcordanceSearchView(object):
    _BACKGROUND_COLOUR = '#FFF'  #white

    #Colour of highlighted results
    _HIGHLIGHT_WORD_COLOUR = '#F00'  #red
    _HIGHLIGHT_WORD_TAG = 'HL_WRD_TAG'

    _HIGHLIGHT_LABEL_COLOUR = '#C0C0C0'  # dark grey
    _HIGHLIGHT_LABEL_TAG = 'HL_LBL_TAG'

    #Percentage of text left of the scrollbar position
    _FRACTION_LEFT_TEXT = 0.30

    def __init__(self):
        self.queue = q.Queue()
        self.model = ConcordanceSearchModel(self.queue)
        self.top = Tk()
        self._init_top(self.top)
        self._init_menubar()
        self._init_widgets(self.top)
        self.load_corpus(self.model.DEFAULT_CORPUS)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def _init_top(self, top):
        top.geometry('950x680+50+50')
        top.title('NLTK Concordance Search')
        top.bind('<Control-q>', self.destroy)
        top.protocol('WM_DELETE_WINDOW', self.destroy)
        top.minsize(950, 680)

    def _init_widgets(self, parent):
        self.main_frame = Frame(
            parent,
            dict(background=self._BACKGROUND_COLOUR, padx=1, pady=1, border=1))
        self._init_corpus_select(self.main_frame)
        self._init_query_box(self.main_frame)
        self._init_results_box(self.main_frame)
        self._init_paging(self.main_frame)
        self._init_status(self.main_frame)
        self.main_frame.pack(fill='both', expand=True)

    def _init_menubar(self):
        self._result_size = IntVar(self.top)
        self._cntx_bf_len = IntVar(self.top)
        self._cntx_af_len = IntVar(self.top)
        menubar = Menu(self.top)

        filemenu = Menu(menubar, tearoff=0, borderwidth=0)
        filemenu.add_command(label='Exit',
                             underline=1,
                             command=self.destroy,
                             accelerator='Ctrl-q')
        menubar.add_cascade(label='File', underline=0, menu=filemenu)

        editmenu = Menu(menubar, tearoff=0)
        rescntmenu = Menu(editmenu, tearoff=0)
        rescntmenu.add_radiobutton(label='20',
                                   variable=self._result_size,
                                   underline=0,
                                   value=20,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='50',
                                   variable=self._result_size,
                                   underline=0,
                                   value=50,
                                   command=self.set_result_size)
        rescntmenu.add_radiobutton(label='100',
                                   variable=self._result_size,
                                   underline=0,
                                   value=100,
                                   command=self.set_result_size)
        rescntmenu.invoke(1)
        editmenu.add_cascade(label='Result Count',
                             underline=0,
                             menu=rescntmenu)

        cntxmenu = Menu(editmenu, tearoff=0)
        cntxbfmenu = Menu(cntxmenu, tearoff=0)
        cntxbfmenu.add_radiobutton(label='60 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=60,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.add_radiobutton(label='80 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=80,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.add_radiobutton(label='100 characters',
                                   variable=self._cntx_bf_len,
                                   underline=0,
                                   value=100,
                                   command=self.set_cntx_bf_len)
        cntxbfmenu.invoke(1)
        cntxmenu.add_cascade(label='Before', underline=0, menu=cntxbfmenu)

        cntxafmenu = Menu(cntxmenu, tearoff=0)
        cntxafmenu.add_radiobutton(label='70 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=70,
                                   command=self.set_cntx_af_len)
        cntxafmenu.add_radiobutton(label='90 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=90,
                                   command=self.set_cntx_af_len)
        cntxafmenu.add_radiobutton(label='110 characters',
                                   variable=self._cntx_af_len,
                                   underline=0,
                                   value=110,
                                   command=self.set_cntx_af_len)
        cntxafmenu.invoke(1)
        cntxmenu.add_cascade(label='After', underline=0, menu=cntxafmenu)

        editmenu.add_cascade(label='Context', underline=0, menu=cntxmenu)

        menubar.add_cascade(label='Edit', underline=0, menu=editmenu)

        self.top.config(menu=menubar)

    def set_result_size(self, **kwargs):
        self.model.result_count = self._result_size.get()

    def set_cntx_af_len(self, **kwargs):
        self._char_after = self._cntx_af_len.get()

    def set_cntx_bf_len(self, **kwargs):
        self._char_before = self._cntx_bf_len.get()

    def _init_corpus_select(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.var = StringVar(innerframe)
        self.var.set(self.model.DEFAULT_CORPUS)
        Label(innerframe,
              justify=LEFT,
              text=' Corpus: ',
              background=self._BACKGROUND_COLOUR,
              padx=2,
              pady=1,
              border=0).pack(side='left')

        other_corpora = list(self.model.CORPORA.keys()).remove(
            self.model.DEFAULT_CORPUS)
        om = OptionMenu(innerframe,
                        self.var,
                        self.model.DEFAULT_CORPUS,
                        command=self.corpus_selected,
                        *self.model.non_default_corpora())
        om['borderwidth'] = 0
        om['highlightthickness'] = 1
        om.pack(side='left')
        innerframe.pack(side='top', fill='x', anchor='n')

    def _init_status(self, parent):
        self.status = Label(parent,
                            justify=LEFT,
                            relief=SUNKEN,
                            background=self._BACKGROUND_COLOUR,
                            border=0,
                            padx=1,
                            pady=0)
        self.status.pack(side='top', anchor='sw')

    def _init_query_box(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        another = Frame(innerframe, background=self._BACKGROUND_COLOUR)
        self.query_box = Entry(another, width=60)
        self.query_box.pack(side='left', fill='x', pady=25, anchor='center')
        self.search_button = Button(another,
                                    text='Search',
                                    command=self.search,
                                    borderwidth=1,
                                    highlightthickness=1)
        self.search_button.pack(side='left',
                                fill='x',
                                pady=25,
                                anchor='center')
        self.query_box.bind('<KeyPress-Return>',
                            self.search_enter_keypress_handler)
        another.pack()
        innerframe.pack(side='top', fill='x', anchor='n')

    def search_enter_keypress_handler(self, *event):
        self.search()

    def _init_results_box(self, parent):
        innerframe = Frame(parent)
        i1 = Frame(innerframe)
        i2 = Frame(innerframe)
        vscrollbar = Scrollbar(i1, borderwidth=1)
        hscrollbar = Scrollbar(i2, borderwidth=1, orient='horiz')
        self.results_box = Text(i1,
                                font=Font(family='courier', size='16'),
                                state='disabled',
                                borderwidth=1,
                                yscrollcommand=vscrollbar.set,
                                xscrollcommand=hscrollbar.set,
                                wrap='none',
                                width='40',
                                height='20',
                                exportselection=1)
        self.results_box.pack(side='left', fill='both', expand=True)
        self.results_box.tag_config(self._HIGHLIGHT_WORD_TAG,
                                    foreground=self._HIGHLIGHT_WORD_COLOUR)
        self.results_box.tag_config(self._HIGHLIGHT_LABEL_TAG,
                                    foreground=self._HIGHLIGHT_LABEL_COLOUR)
        vscrollbar.pack(side='left', fill='y', anchor='e')
        vscrollbar.config(command=self.results_box.yview)
        hscrollbar.pack(side='left', fill='x', expand=True, anchor='w')
        hscrollbar.config(command=self.results_box.xview)
        #there is no other way of avoiding the overlap of scrollbars while using pack layout manager!!!
        Label(i2, text='   ',
              background=self._BACKGROUND_COLOUR).pack(side='left', anchor='e')
        i1.pack(side='top', fill='both', expand=True, anchor='n')
        i2.pack(side='bottom', fill='x', anchor='s')
        innerframe.pack(side='top', fill='both', expand=True)

    def _init_paging(self, parent):
        innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
        self.prev = prev = Button(innerframe,
                                  text='Previous',
                                  command=self.previous,
                                  width='10',
                                  borderwidth=1,
                                  highlightthickness=1,
                                  state='disabled')
        prev.pack(side='left', anchor='center')
        self.next = next = Button(innerframe,
                                  text='Next',
                                  command=self.__next__,
                                  width='10',
                                  borderwidth=1,
                                  highlightthickness=1,
                                  state='disabled')
        next.pack(side='right', anchor='center')
        innerframe.pack(side='top', fill='y')
        self.current_page = 0

    def previous(self):
        self.clear_results_box()
        self.freeze_editable()
        self.model.prev(self.current_page - 1)

    def __next__(self):
        self.clear_results_box()
        self.freeze_editable()
        self.model.next(self.current_page + 1)

    def about(self, *e):
        ABOUT = ("NLTK Concordance Search Demo\n")
        TITLE = 'About: NLTK Concordance Search Demo'
        try:
            from six.moves.tkinter_messagebox import Message
            Message(message=ABOUT, title=TITLE, parent=self.main_frame).show()
        except:
            ShowText(self.top, TITLE, ABOUT)

    def _bind_event_handlers(self):
        self.top.bind(CORPUS_LOADED_EVENT, self.handle_corpus_loaded)
        self.top.bind(SEARCH_TERMINATED_EVENT, self.handle_search_terminated)
        self.top.bind(SEARCH_ERROR_EVENT, self.handle_search_error)
        self.top.bind(ERROR_LOADING_CORPUS_EVENT,
                      self.handle_error_loading_corpus)

    def _poll(self):
        try:
            event = self.queue.get(block=False)
        except q.Empty:
            pass
        else:
            if event == CORPUS_LOADED_EVENT:
                self.handle_corpus_loaded(event)
            elif event == SEARCH_TERMINATED_EVENT:
                self.handle_search_terminated(event)
            elif event == SEARCH_ERROR_EVENT:
                self.handle_search_error(event)
            elif event == ERROR_LOADING_CORPUS_EVENT:
                self.handle_error_loading_corpus(event)
        self.after = self.top.after(POLL_INTERVAL, self._poll)

    def handle_error_loading_corpus(self, event):
        self.status['text'] = 'Error in loading ' + self.var.get()
        self.unfreeze_editable()
        self.clear_all()
        self.freeze_editable()

    def handle_corpus_loaded(self, event):
        self.status['text'] = self.var.get() + ' is loaded'
        self.unfreeze_editable()
        self.clear_all()
        self.query_box.focus_set()

    def handle_search_terminated(self, event):
        #todo: refactor the model such that it is less state sensitive
        results = self.model.get_results()
        self.write_results(results)
        self.status['text'] = ''
        if len(results) == 0:
            self.status['text'] = 'No results found for ' + self.model.query
        else:
            self.current_page = self.model.last_requested_page
        self.unfreeze_editable()
        self.results_box.xview_moveto(self._FRACTION_LEFT_TEXT)

    def handle_search_error(self, event):
        self.status['text'] = 'Error in query ' + self.model.query
        self.unfreeze_editable()

    def corpus_selected(self, *args):
        new_selection = self.var.get()
        self.load_corpus(new_selection)

    def load_corpus(self, selection):
        if self.model.selected_corpus != selection:
            self.status['text'] = 'Loading ' + selection + '...'
            self.freeze_editable()
            self.model.load_corpus(selection)

    def search(self):
        self.current_page = 0
        self.clear_results_box()
        self.model.reset_results()
        query = self.query_box.get()
        if (len(query.strip()) == 0): return
        self.status['text'] = 'Searching for ' + query
        self.freeze_editable()
        self.model.search(
            query,
            self.current_page + 1,
        )

    def write_results(self, results):
        self.results_box['state'] = 'normal'
        row = 1
        for each in results:
            sent, pos1, pos2 = each[0].strip(), each[1], each[2]
            if len(sent) != 0:
                if (pos1 < self._char_before):
                    sent, pos1, pos2 = self.pad(sent, pos1, pos2)
                sentence = sent[pos1 - self._char_before:pos1 +
                                self._char_after]
                if not row == len(results):
                    sentence += '\n'
                self.results_box.insert(str(row) + '.0', sentence)
                word_markers, label_markers = self.words_and_labels(
                    sent, pos1, pos2)
                for marker in word_markers:
                    self.results_box.tag_add(self._HIGHLIGHT_WORD_TAG,
                                             str(row) + '.' + str(marker[0]),
                                             str(row) + '.' + str(marker[1]))
                for marker in label_markers:
                    self.results_box.tag_add(self._HIGHLIGHT_LABEL_TAG,
                                             str(row) + '.' + str(marker[0]),
                                             str(row) + '.' + str(marker[1]))
                row += 1
        self.results_box['state'] = 'disabled'

    def words_and_labels(self, sentence, pos1, pos2):
        search_exp = sentence[pos1:pos2]
        words, labels = [], []
        labeled_words = search_exp.split(' ')
        index = 0
        for each in labeled_words:
            if each == '':
                index += 1
            else:
                word, label = each.split('/')
                words.append((self._char_before + index,
                              self._char_before + index + len(word)))
                index += len(word) + 1
                labels.append((self._char_before + index,
                               self._char_before + index + len(label)))
                index += len(label)
            index += 1
        return words, labels

    def pad(self, sent, hstart, hend):
        if hstart >= self._char_before:
            return sent, hstart, hend
        d = self._char_before - hstart
        sent = ''.join([' '] * d) + sent
        return sent, hstart + d, hend + d

    def destroy(self, *e):
        if self.top is None: return
        self.top.after_cancel(self.after)
        self.top.destroy()
        self.top = None

    def clear_all(self):
        self.query_box.delete(0, END)
        self.model.reset_query()
        self.clear_results_box()

    def clear_results_box(self):
        self.results_box['state'] = 'normal'
        self.results_box.delete("1.0", END)
        self.results_box['state'] = 'disabled'

    def freeze_editable(self):
        self.query_box['state'] = 'disabled'
        self.search_button['state'] = 'disabled'
        self.prev['state'] = 'disabled'
        self.next['state'] = 'disabled'

    def unfreeze_editable(self):
        self.query_box['state'] = 'normal'
        self.search_button['state'] = 'normal'
        self.set_paging_button_states()

    def set_paging_button_states(self):
        if self.current_page == 0 or self.current_page == 1:
            self.prev['state'] = 'disabled'
        else:
            self.prev['state'] = 'normal'
        if self.model.has_more_pages(self.current_page):
            self.next['state'] = 'normal'
        else:
            self.next['state'] = 'disabled'

    def fire_event(self, event):
        #Firing an event so that rendering of widgets happen in the mainloop thread
        self.top.event_generate(event, when='tail')

    def mainloop(self, *args, **kwargs):
        if in_idle(): return
        self.top.mainloop(*args, **kwargs)
Beispiel #30
0
    def __init__(self, project=None):
        GUITk.__init__(self, wait_msec=1)

        for signame in ["qvc_dirtied", "qvd_failed", "qvc_available"]:
            s = CoSignal()
            s.attach(self.signal_dispatcher)
            setattr(self, "sig_" + signame, s)

        self.title_suffix = _("Qemu device creator GUI")
        self.title_suffix.trace_variable("w", self.__on_title_suffix_write__)

        self.title_not_saved_asterisk = StringVar()
        self.title_not_saved_asterisk.trace_variable(
            "w", self.__on_title_suffix_write__)
        self.saved_operation = None

        self.var_title = StringVar()
        self.title(self.var_title)

        # Hot keys, accelerators
        self.hk = hotkeys = HotKey(self)
        hotkeys.add_bindings([
            HotKeyBinding(
                self.invert_history_window,
                key_code=43,  # H
                description=_("If editing history window is hidden then \
show it else hide it.")),
            HotKeyBinding(
                self.on_load,
                key_code=32,  # O
                description=_("Load project from file.")),
            HotKeyBinding(
                self.on_new_project,
                key_code=57,  # N
                description=_("Create new project.")),
            HotKeyBinding(
                self.on_add_description,
                key_code=40,  # D
                description=_("Add description to the project")),
            HotKeyBinding(
                self.on_set_qemu_build_path,
                key_code=56,  # B
                description=_("Set Qemu build path for the project")),
            HotKeyBinding(
                self.on_generate,
                key_code=42,  # G
                description=_("Launch code generation")),
            HotKeyBinding(
                self.on_delete,
                key_code=24,  # Q
                description=_("Shutdown the application.")),
            HotKeyBinding(
                self.undo,
                key_code=52,  # Z
                description=_("Revert previous editing.")),
            HotKeyBinding(
                self.redo,
                key_code=29,  # Y
                description=_("Make reverted editing again.")),
            HotKeyBinding(
                self.on_save,
                key_code=39,  # S
                description=_("Save project.")),
            HotKeyBinding(
                self.rebuild_cache,
                key_code=27,  # R
                description=_("Rebuild Cache."))
        ])

        hotkeys.add_key_symbols({
            27: "R",
            43: "H",
            32: "O",
            57: "N",
            40: "D",
            56: "B",
            42: "G",
            24: "Q",
            52: "Z",
            29: "Y",
            39: "S"
        })

        # Menu bar
        menubar = VarMenu(self)

        filemenu = VarMenu(menubar, tearoff=False)
        filemenu.add_command(label=_("Add description"),
                             command=self.on_add_description,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_add_description))
        filemenu.add_command(label=_("Set Qemu build path"),
                             command=self.on_set_qemu_build_path,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_set_qemu_build_path))
        filemenu.add_command(label=_("Generate"),
                             command=self.on_generate,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_generate))
        filemenu.add_separator()
        filemenu.add_command(label=_("New project"),
                             command=self.on_new_project,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_new_project)),
        filemenu.add_command(label=_("Save"),
                             command=self.on_save,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_save)),
        filemenu.add_command(label=_("Save project as..."),
                             command=self.on_save_as)
        filemenu.add_command(label=_("Load"),
                             command=self.on_load,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_load)),
        filemenu.add_separator()
        filemenu.add_command(label=_("Quit"),
                             command=self.quit,
                             accelerator=hotkeys.get_keycode_string(
                                 self.on_delete))
        menubar.add_cascade(label=_("File"), menu=filemenu)

        self.editmenu = editmenu = VarMenu(menubar, tearoff=False)
        editmenu.add_command(label=_("Undo"),
                             command=self.undo,
                             accelerator=hotkeys.get_keycode_string(self.undo))
        self.undo_idx = editmenu.count - 1

        editmenu.add_command(label=_("Redo"),
                             command=self.redo,
                             accelerator=hotkeys.get_keycode_string(self.redo))
        self.redo_idx = editmenu.count - 1

        editmenu.add_separator()

        editmenu.add_command(label=_("Rebuild Cache"),
                             command=self.rebuild_cache,
                             accelerator=hotkeys.get_keycode_string(
                                 self.rebuild_cache))

        editmenu.add_separator()

        v = self.var_history_window = BooleanVar()
        v.set(False)

        self.__on_var_history_window = v.trace_variable(
            "w", self.__on_var_history_window__)

        editmenu.add_checkbutton(label=_("Editing history window"),
                                 variable=v,
                                 accelerator=hotkeys.get_keycode_string(
                                     self.invert_history_window))

        menubar.add_cascade(label=_("Edit"), menu=editmenu)

        self.config(menu=menubar)

        # Widget layout
        self.grid()
        self.grid_columnconfigure(0, weight=1)
        self.grid_rowconfigure(0, weight=1)

        # Status bar
        self.grid_rowconfigure(1, weight=0)
        self.sb = sb = Statusbar(self)
        sb.grid(row=1, column=0, sticky="NEWS")

        # QEMU build path displaying
        self.var_qemu_build_path = StringVar()
        sb.left(self.var_qemu_build_path)

        # Task counters in status bar
        self.var_tasks = vt = IntVar()
        self.var_callers = vc = IntVar()
        self.var_active_tasks = vat = IntVar()
        self.var_finished_tasks = vft = IntVar()
        sb.right(_("Background tasks: "))
        sb.right(FormatVar(value="%u") % vt, fg="red")
        sb.right(FormatVar(value="%u") % vc, fg="orange")
        sb.right(FormatVar(value="%u") % vat)
        sb.right(FormatVar(value="%u") % vft, fg="grey")

        self.task_manager.watch_activated(self.__on_task_state_changed)
        self.task_manager.watch_finished(self.__on_task_state_changed)
        self.task_manager.watch_failed(self.__on_task_state_changed)
        self.task_manager.watch_removed(self.__on_task_state_changed)

        self.protocol("WM_DELETE_WINDOW", self.on_delete)

        self.set_project(GUIProject() if project is None else project)

        self.__update_title__()
        self.__check_saved_asterisk__()