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 _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_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_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_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_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()
class SelectionDialog(_TkDialog):
def __init__(self, message, values):
_TkDialog.__init__(self, message, values)
def _create_selector(self, parent, values):
self._listbox = Listbox(parent)
for item in values:
self._listbox.insert(END, item)
return self._listbox
def _validate_value(self):
return bool(self._listbox.curselection())
def _get_value(self):
return self._listbox.get(self._listbox.curselection())
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)
class SelectionDialog(_TkDialog):
def __init__(self, message, values):
_TkDialog.__init__(self, message, values)
def _create_selector(self, parent, values):
self._listbox = Listbox(parent)
for item in values:
self._listbox.insert(END, item)
return self._listbox
def _validate_value(self):
return bool(self._listbox.curselection())
def _get_value(self):
return self._listbox.get(self._listbox.curselection())
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_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 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()
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 not hist 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)
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()
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)
def _create_selector(self, parent, values):
self._listbox = Listbox(parent)
for item in values:
self._listbox.insert(END, item)
return self._listbox
def __init__(self, parent, root):
self.parent = parent
self.root = root
self.selectedStatus = False
# Widget Initialization
self._listbox = Listbox(
parent,
font="{Segoe UI} 10",
height=0,
selectmode="extended",
state="normal",
cursor="hand2",
exportselection=False,
)
self._listbox_scrollbar = AutoScrollbar(self._listbox)
self._lbl_help = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="Hold [Ctrl] to select multiple items",
)
self._label_header = Label(
parent,
font="{Segoe UI} 16 bold",
text="Playback items available for removal",
)
self._label_actions = Label(
parent,
font="{Segoe UI} 14 bold",
text="Actions",
)
self._label_info = Label(
parent,
font="{Segoe UI} 14 bold",
text="Info",
)
self._btnRefresh = Button(
parent,
font="{Segoe UI} 12 bold",
text="Refresh",
)
self._btnRemoveSelected = Button(
parent,
font="{Segoe UI} 12 bold",
wraplength=175,
text="Remove Selected",
)
self._btnSelectDeselectAll = Button(
parent,
font="{Segoe UI} 12 bold",
wraplength=175,
text="Select / Deselect All",
)
self._btnStopCurrentlyPlaying = Button(
parent,
font="{Segoe UI} 12 bold",
# wraplength=80,
text="Stop Currently Playing",
)
self._btnLogin = Button(
parent,
font="{Segoe UI} 12 bold",
text="Login/Auth",
)
self._lbl_ID = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="ID:",
)
self._lbl_PausedAt = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="Paused At:",
)
self._lbl_Progress = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="Progress:",
)
self.lbl_showName = StringVar(value="Show:")
self._lbl_Show = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_showName,
)
self.lbl_season = StringVar(value="Season:")
self._lbl_Season = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_season,
)
self.lbl_episode = StringVar(value="Episode:")
self._lbl_Episode = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_episode,
)
self.lbl_episodeTitle = StringVar(value="Title:")
self._lbl_Title = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_episodeTitle,
)
self.txt_ID = StringVar()
self._txtID = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_ID,
width=0,
)
self.txt_paused_at = StringVar()
self._txtPausedAt = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_paused_at,
width=0,
)
self.txt_progress = StringVar()
self._txtProgress = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_progress,
width=0,
)
self.txt_showName = StringVar()
self._txtShowName = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_showName,
width=0,
)
self.txt_season = StringVar()
self._txtSeason = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_season,
width=0,
)
self.txt_episode = StringVar()
self._txtEpisode = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_episode,
width=0,
)
self.txt_title = StringVar()
self._txtTitle = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_title,
width=0,
)
self.lbl_loggedin = StringVar(value="")
self._lbl_loggedin = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_loggedin,
)
self._lbl_version = Label(
parent,
font="{Segoe UI Light} 10 bold",
text="v%s" % app.__version__,
foreground="blue",
cursor="hand2",
)
# widget commands
self._listbox.bind('<<ListboxSelect>>', self._listbox_onselect)
self._listbox.config(yscrollcommand=self._listbox_scrollbar.set)
self._listbox_scrollbar.config(orient='vertical',
command=self._listbox.yview)
self._btnRefresh.configure(command=self._btn_refresh_command)
self._btnRemoveSelected.configure(
command=self._btn_remove_selected_command)
self._btnSelectDeselectAll.configure(
command=self._btn_toggle_selection_command)
self._btnStopCurrentlyPlaying.configure(
command=self._btn_stop_currently_playing)
self._btnLogin.configure(command=self._btn_login_command)
self._lbl_version.bind('<Button-1>', self._open_repo)
# Geometry Management
self._listbox.grid(in_=parent,
column=4,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=5,
rowspan=10,
sticky="nsew")
self._listbox.columnconfigure(0, weight=1)
self._listbox.rowconfigure(0, weight=1)
self._listbox_scrollbar.grid(column=4, rowspan=10, sticky="ns")
self._lbl_help.grid(in_=parent,
column=4,
row=11,
ipadx=0,
ipady=0,
padx=5,
pady=5,
sticky="nsew")
self._label_header.grid(in_=parent,
column=4,
row=1,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._label_actions.grid(in_=parent,
column=1,
row=9,
columnspan=3,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._label_info.grid(in_=parent,
column=1,
row=1,
columnspan=3,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._btnRefresh.grid(in_=parent,
column=1,
row=10,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="")
self._btnRemoveSelected.grid(in_=parent,
column=2,
row=10,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="")
self._btnSelectDeselectAll.grid(in_=parent,
column=3,
row=10,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="")
self._btnStopCurrentlyPlaying.grid(in_=parent,
column=2,
row=11,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=0,
rowspan=1,
sticky="ne")
self._btnLogin.grid(in_=parent,
column=2,
row=11,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="")
# Hide the login button at first
self._btnLogin.grid_remove()
self._lbl_ID.grid(in_=parent,
column=1,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_PausedAt.grid(in_=parent,
column=1,
row=3,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Progress.grid(in_=parent,
column=1,
row=4,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Show.grid(in_=parent,
column=1,
row=5,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Season.grid(in_=parent,
column=1,
row=6,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Episode.grid(in_=parent,
column=1,
row=7,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Title.grid(in_=parent,
column=1,
row=8,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._txtID.grid(in_=parent,
column=2,
row=2,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtPausedAt.grid(in_=parent,
column=2,
row=3,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtProgress.grid(in_=parent,
column=2,
row=4,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtShowName.grid(in_=parent,
column=2,
row=5,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtSeason.grid(in_=parent,
column=2,
row=6,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtEpisode.grid(in_=parent,
column=2,
row=7,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtTitle.grid(in_=parent,
column=2,
row=8,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_loggedin.grid(in_=parent,
column=1,
row=11,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=5,
rowspan=1,
sticky="sw")
self._lbl_version.grid(in_=parent,
column=1,
row=1,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nw")
# Resize Behavior
parent.resizable(False, False)
parent.grid_rowconfigure(1, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(2, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(3, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(4, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(5, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(6, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(7, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(8, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(9, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(10, weight=0, minsize=60, pad=0)
parent.grid_rowconfigure(11, weight=0, minsize=30, pad=5)
parent.grid_columnconfigure(1, weight=0, minsize=70, pad=5)
parent.grid_columnconfigure(2, weight=0, minsize=175, pad=0)
parent.grid_columnconfigure(3, weight=0, minsize=175, pad=0)
parent.grid_columnconfigure(4, weight=0, minsize=400, pad=0)
def __init__(self, master, columns, column_weights=None, cnf={}, **kw):
"""
Construct a new multi-column listbox widget.
:param master: The widget that should contain the new
multi-column listbox.
:param columns: Specifies what columns should be included in
the new multi-column listbox. If ``columns`` is an integer,
the it is the number of columns to include. If it is
a list, then its length indicates the number of columns
to include; and each element of the list will be used as
a label for the corresponding column.
:param cnf, kw: Configuration parameters for this widget.
Use ``label_*`` to configure all labels; and ``listbox_*``
to configure all listboxes. E.g.:
>>> mlb = MultiListbox(master, 5, label_foreground='red')
"""
# If columns was specified as an int, convert it to a list.
if isinstance(columns, int):
columns = list(range(columns))
include_labels = False
else:
include_labels = True
if len(columns) == 0:
raise ValueError("Expected at least one column")
# Instance variables
self._column_names = tuple(columns)
self._listboxes = []
self._labels = []
# Pick a default value for column_weights, if none was specified.
if column_weights is None:
column_weights = [1] * len(columns)
elif len(column_weights) != len(columns):
raise ValueError('Expected one column_weight for each column')
self._column_weights = column_weights
# Configure our widgets.
Frame.__init__(self, master, **self.FRAME_CONFIG)
self.grid_rowconfigure(1, weight=1)
for i, label in enumerate(self._column_names):
self.grid_columnconfigure(i, weight=column_weights[i])
# Create a label for the column
if include_labels:
l = Label(self, text=label, **self.LABEL_CONFIG)
self._labels.append(l)
l.grid(column=i, row=0, sticky='news', padx=0, pady=0)
l.column_index = i
# Create a listbox for the column
lb = Listbox(self, **self.LISTBOX_CONFIG)
self._listboxes.append(lb)
lb.grid(column=i, row=1, sticky='news', padx=0, pady=0)
lb.column_index = i
# Clicking or dragging selects:
lb.bind('<Button-1>', self._select)
lb.bind('<B1-Motion>', self._select)
# Scroll whell scrolls:
lb.bind('<Button-4>', lambda e: self._scroll(-1))
lb.bind('<Button-5>', lambda e: self._scroll(+1))
lb.bind('<MouseWheel>', lambda e: self._scroll(e.delta))
# Button 2 can be used to scan:
lb.bind('<Button-2>', lambda e: self.scan_mark(e.x, e.y))
lb.bind('<B2-Motion>', lambda e: self.scan_dragto(e.x, e.y))
# Dragging outside the window has no effect (diable
# the default listbox behavior, which scrolls):
lb.bind('<B1-Leave>', lambda e: 'break')
# Columns can be resized by dragging them:
l.bind('<Button-1>', self._resize_column)
# Columns can be resized by dragging them. (This binding is
# used if they click on the grid between columns:)
self.bind('<Button-1>', self._resize_column)
# Set up key bindings for the widget:
self.bind('<Up>', lambda e: self.select(delta=-1))
self.bind('<Down>', lambda e: self.select(delta=1))
self.bind('<Prior>', lambda e: self.select(delta=-self._pagesize()))
self.bind('<Next>', lambda e: self.select(delta=self._pagesize()))
# Configuration customizations
self.configure(cnf, **kw)
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'
def _create_selector(self, parent, values):
self._listbox = Listbox(parent)
for item in values:
self._listbox.insert(END, item)
return self._listbox
def __init__(self, master, columns, column_weights=None, cnf={}, **kw):
"""
Construct a new multi-column listbox widget.
:param master: The widget that should contain the new
multi-column listbox.
:param columns: Specifies what columns should be included in
the new multi-column listbox. If ``columns`` is an integer,
the it is the number of columns to include. If it is
a list, then its length indicates the number of columns
to include; and each element of the list will be used as
a label for the corresponding column.
:param cnf, kw: Configuration parameters for this widget.
Use ``label_*`` to configure all labels; and ``listbox_*``
to configure all listboxes. E.g.:
>>> mlb = MultiListbox(master, 5, label_foreground='red')
"""
# If columns was specified as an int, convert it to a list.
if isinstance(columns, int):
columns = list(range(columns))
include_labels = False
else:
include_labels = True
if len(columns) == 0:
raise ValueError("Expected at least one column")
# Instance variables
self._column_names = tuple(columns)
self._listboxes = []
self._labels = []
# Pick a default value for column_weights, if none was specified.
if column_weights is None:
column_weights = [1] * len(columns)
elif len(column_weights) != len(columns):
raise ValueError('Expected one column_weight for each column')
self._column_weights = column_weights
# Configure our widgets.
Frame.__init__(self, master, **self.FRAME_CONFIG)
self.grid_rowconfigure(1, weight=1)
for i, label in enumerate(self._column_names):
self.grid_columnconfigure(i, weight=column_weights[i])
# Create a label for the column
if include_labels:
l = Label(self, text=label, **self.LABEL_CONFIG)
self._labels.append(l)
l.grid(column=i, row=0, sticky='news', padx=0, pady=0)
l.column_index = i
# Create a listbox for the column
lb = Listbox(self, **self.LISTBOX_CONFIG)
self._listboxes.append(lb)
lb.grid(column=i, row=1, sticky='news', padx=0, pady=0)
lb.column_index = i
# Clicking or dragging selects:
lb.bind('<Button-1>', self._select)
lb.bind('<B1-Motion>', self._select)
# Scroll whell scrolls:
lb.bind('<Button-4>', lambda e: self._scroll(-1))
lb.bind('<Button-5>', lambda e: self._scroll(+1))
lb.bind('<MouseWheel>', lambda e: self._scroll(e.delta))
# Button 2 can be used to scan:
lb.bind('<Button-2>', lambda e: self.scan_mark(e.x, e.y))
lb.bind('<B2-Motion>', lambda e: self.scan_dragto(e.x, e.y))
# Dragging outside the window has no effect (diable
# the default listbox behavior, which scrolls):
lb.bind('<B1-Leave>', lambda e: 'break')
# Columns can be resized by dragging them:
l.bind('<Button-1>', self._resize_column)
# Columns can be resized by dragging them. (This binding is
# used if they click on the grid between columns:)
self.bind('<Button-1>', self._resize_column)
# Set up key bindings for the widget:
self.bind('<Up>', lambda e: self.select(delta=-1))
self.bind('<Down>', lambda e: self.select(delta=1))
self.bind('<Prior>', lambda e: self.select(delta=-self._pagesize()))
self.bind('<Next>', lambda e: self.select(delta=self._pagesize()))
# Configuration customizations
self.configure(cnf, **kw)
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()
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()
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()
def initialize(self):
"""
Initialize the tKinter app (GUI)
by creating frames and graphical components,
setting the window size etc.
"""
# self.bind("<Escape>", lambda x: self.destroy())
self.bind("<Escape>", on_close)
listFrame0 = Frame(self)
listFrame0.pack(side=TOP, fill=BOTH, expand=True)
listFrame = Frame(listFrame0)
listFrame.pack(side=LEFT, fill=BOTH, expand=True)
scrollbary = Scrollbar(listFrame, orient=VERTICAL)
scrollbary.pack(side=RIGHT, fill=Y)
scrollbarx = Scrollbar(listFrame, orient=HORIZONTAL)
scrollbarx.pack(side=BOTTOM, fill=X)
# bd --> border
self.listbox = Listbox(listFrame, bd=1, selectmode=SINGLE, yscrollcommand=scrollbary.set, xscrollcommand=scrollbarx.set)
self.listbox.bind('<<ListboxSelect>>', self.on_select_click)
scrollbary.config(command=self.listbox.yview)
scrollbarx.config(command=self.listbox.xview)
self.listbox.config(width=self.listbox.winfo_reqwidth() // 3) # width=self.listbox.winfo_reqwidth()
self.listbox.pack(side=LEFT, fill=BOTH, expand=True)
listFrame1 = Frame(listFrame0)
listFrame1.pack(side=LEFT, fill=BOTH, expand=True)
scrollbary1 = Scrollbar(listFrame1, orient=VERTICAL)
scrollbary1.pack(side=RIGHT, fill=Y)
scrollbarx1 = Scrollbar(listFrame1, orient=HORIZONTAL)
scrollbarx1.pack(side=BOTTOM, fill=X)
# bd --> border
self.listbox1 = Listbox(listFrame1, bd=0, selectmode=SINGLE, yscrollcommand=scrollbary1.set, xscrollcommand=scrollbarx1.set)
self.listbox1.bind('<<ListboxSelect>>', self.on_update_select_click)
scrollbary1.config(command=self.listbox1.yview)
scrollbarx1.config(command=self.listbox1.xview)
self.listbox1.config(width=self.listbox1.winfo_reqwidth() // 2) # width=self.listbox.winfo_reqwidth()
self.listbox1.pack(side=LEFT, fill=BOTH, expand=True)
text_frame = Frame(self)
text_frame.pack(fill=X) # ,expand=True)
self.created_str = tk.StringVar()
created = tk.Entry(text_frame, textvariable=self.created_str)
self.created_months = ttk.Combobox(text_frame)
self.created_months['values'] = ('01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12')
self.created_months.set(datetime.date.today().strftime('%m'))
self.created_months.state(['readonly'])
# self.created_months.bind('<<ComboboxSelected>>', self.On_table_select)
self.value_str = tk.StringVar()
value = tk.Entry(text_frame, textvariable=self.value_str)
self.category_str = tk.StringVar()
category = tk.Entry(text_frame, textvariable=self.category_str) # , state='readonly')
self.description_str = tk.StringVar()
description = tk.Entry(text_frame, textvariable=self.description_str)
fill_from_csv_button = Button(text_frame, text="fill from csv")
fill_from_csv_button.bind('<Button-1>', self.on_fill_from_csv_click)
self.db_tables = ttk.Combobox(text_frame)
self.db_tables.state(['readonly'])
self.db_tables.bind('<<ComboboxSelected>>', self.on_table_select)
created.pack(side=LEFT)
self.created_months.pack(side=LEFT)
value.pack(side=LEFT)
category.pack(side=LEFT)
description.pack(side=LEFT)
# check.pack(side=LEFT)
fill_from_csv_button.pack(side=LEFT)
self.db_tables.pack(side=LEFT)
button_frame = Frame(self)
button_frame.pack(fill=X) # ,expand=True)
save_button = Button(button_frame, text="save entry")
save_button.bind('<Button-1>', self.on_save_entry_click)
database_button = Button(button_frame, text="select database")
database_button.bind('<Button-1>', self.on_database_click)
self.database_path_str = tk.StringVar()
self.database_path = tk.Label(button_frame, textvariable=self.database_path_str, bg="white", anchor=tk.W)
save_button.pack(side=LEFT)
database_button.pack(side=RIGHT)
self.database_path.pack(side=RIGHT) # , expand=True, fill=BOTH fill=BOTH,
debugFrame = Frame(self)
debugFrame.pack(side=BOTTOM, fill=X) # ,expand=True)
self.last_entry = tk.StringVar()
self.path_label = tk.Label(debugFrame, textvariable=self.last_entry, bg="white", anchor=tk.W)
self.path_label.pack(side=LEFT, fill=BOTH, expand=True)
# print self.geometry()
self.update()
# self.geometry(self.geometry())
# self.update()
# print self.geometry()
# fix the size of the window by setting the window size to its own size
w = self.winfo_screenwidth()
# print w
# print 'reqwidth',self.winfo_reqwidth()
# h = self.winfo_screenheight()
self.geometry('{0}x{1}+{2}+{3}'.format(self.winfo_reqwidth(), self.winfo_reqheight() * 3, w - self.winfo_reqwidth() - 20, 0)) # self.geometry()
self.update()
self.minsize(self.winfo_reqwidth(), self.winfo_reqheight())
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()
def __init__(self, parent, app):
parent.title('Trakt.tv Playback Progress Remover')
self.parent = parent
self.root = app
self.selectedStatus = False
# Widget Initialization
self._listbox = Listbox(
parent,
font="{Segoe UI} 10",
height=0,
selectmode="extended",
state="normal",
cursor="hand2",
)
self._listbox_scrollbar = AutoScrollbar(self._listbox)
self._label_header = Label(
parent,
font="{Segoe UI} 16 bold",
text="Playback items available for removal",
)
self._label_actions = Label(
parent,
font="{Segoe UI} 14 bold",
text="Actions",
)
self._label_info = Label(
parent,
font="{Segoe UI} 14 bold",
text="Info",
)
self._btnRefresh = Button(
parent,
font="{Segoe UI} 12 bold",
text="Refresh",
)
self._btnRemoveSelected = Button(
parent,
font="{Segoe UI} 12 bold",
wraplength=120,
text="Remove Selected",
)
self._btnSelectDeselectAll = Button(
parent,
font="{Segoe UI} 12 bold",
wraplength=120,
text="Select / Deselect All",
)
self._btnLogin = Button(
parent,
font="{Segoe UI} 12 bold",
text="Login/Auth",
)
self._lbl_ID = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="ID:",
)
self._lbl_Progress = Label(
parent,
font="{Segoe UI Light} 12 bold",
text="Progress:",
)
self.lbl_showName = StringVar(value="Show:")
self._lbl_Show = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_showName,
)
self.lbl_season = StringVar(value="Season:")
self._lbl_Season = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_season,
)
self.lbl_episode = StringVar(value="Episode:")
self._lbl_Episode = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_episode,
)
self.lbl_episodeTitle = StringVar(value="Title:")
self._lbl_Title = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_episodeTitle,
)
self.txt_ID = StringVar()
self._txtID = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_ID,
width=0,
)
self.txt_progress = StringVar()
self._txtProgress = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_progress,
width=0,
)
self.txt_showName = StringVar()
self._txtShowName = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_showName,
width=0,
)
self.txt_season = StringVar()
self._txtSeason = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_season,
width=0,
)
self.txt_episode = StringVar()
self._txtEpisode = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_episode,
width=0,
)
self.txt_title = StringVar()
self._txtTitle = Entry(
parent,
font="{Segoe UI Light} 12",
readonlybackground="#ffffff",
relief="flat",
state="readonly",
textvariable=self.txt_title,
width=0,
)
self.lbl_loggedin = StringVar(value="Not logged in.")
self._lbl_loggedin = Label(
parent,
font="{Segoe UI Light} 12 bold",
textvariable=self.lbl_loggedin,
)
# widget commands
self._listbox.bind('<<ListboxSelect>>', self._listbox_onselect)
self._listbox.config(yscrollcommand=self._listbox_scrollbar.set)
self._listbox_scrollbar.config(orient='vertical',
command=self._listbox.yview)
self._btnRefresh.configure(command=self._btn_refresh_command)
self._btnRemoveSelected.configure(
command=self._btn_remove_selected_command)
self._btnSelectDeselectAll.configure(
command=self._btn_toggle_selection_command)
self._btnLogin.configure(command=self._btn_login_command)
# Geometry Management
self._listbox.grid(in_=parent,
column=3,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=5,
rowspan=7,
sticky="nsew")
self._listbox.columnconfigure(0, weight=1)
self._listbox.rowconfigure(0, weight=1)
self._listbox_scrollbar.grid(column=2, rowspan=7, sticky="ns")
self._label_header.grid(in_=parent,
column=3,
row=1,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._label_actions.grid(in_=parent,
column=4,
row=1,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._label_info.grid(in_=parent,
column=1,
row=1,
columnspan=2,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=1,
sticky="nsew")
self._btnRefresh.grid(in_=parent,
column=4,
row=6,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=2,
sticky="")
self._btnRemoveSelected.grid(in_=parent,
column=4,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=2,
sticky="")
self._btnSelectDeselectAll.grid(in_=parent,
column=4,
row=4,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=0,
rowspan=2,
sticky="")
self._btnLogin.grid(in_=parent,
column=4,
row=7,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=5,
rowspan=2,
sticky="es")
self._lbl_ID.grid(in_=parent,
column=1,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Progress.grid(in_=parent,
column=1,
row=3,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Show.grid(in_=parent,
column=1,
row=4,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Season.grid(in_=parent,
column=1,
row=5,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Episode.grid(in_=parent,
column=1,
row=6,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_Title.grid(in_=parent,
column=1,
row=7,
columnspan=1,
ipadx=0,
ipady=0,
padx=0,
pady=7,
rowspan=1,
sticky="nsew")
self._txtID.grid(in_=parent,
column=2,
row=2,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtProgress.grid(in_=parent,
column=2,
row=3,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtShowName.grid(in_=parent,
column=2,
row=4,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtSeason.grid(in_=parent,
column=2,
row=5,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtEpisode.grid(in_=parent,
column=2,
row=6,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._txtTitle.grid(in_=parent,
column=2,
row=7,
columnspan=1,
ipadx=0,
ipady=0,
padx=5,
pady=7,
rowspan=1,
sticky="nsew")
self._lbl_loggedin.grid(in_=parent,
column=1,
row=8,
columnspan=2,
ipadx=0,
ipady=0,
padx=5,
pady=5,
rowspan=1,
sticky="sw")
# Resize Behavior
parent.resizable(False, False)
parent.grid_rowconfigure(1, weight=0, minsize=30, pad=20)
parent.grid_rowconfigure(2, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(3, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(4, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(5, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(6, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(7, weight=0, minsize=30, pad=0)
parent.grid_rowconfigure(8, weight=0, minsize=200, pad=0)
parent.grid_columnconfigure(1, weight=0, minsize=70, pad=5)
parent.grid_columnconfigure(2, weight=0, minsize=450, pad=0)
parent.grid_columnconfigure(3, weight=0, minsize=450, pad=0)
parent.grid_columnconfigure(4, weight=0, minsize=120, pad=0)
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'
class SimpleAppTk(tk.Tk):
"""
This is the tKinter app.
"""
def __init__(self, parent, database_name=''):
# class derives from Tkinter --> call its constructor
tk.Tk.__init__(self, parent)
# keep track of the parent
self.parent = parent
# GUI components
self.initialize()
self.controller = control.MoneyController(database_name=database_name)
self.initialize_db(database_name=self.controller.database_name)
# # self.initialize_db(self.database_name)
# self.populate_tables_combobox()
# self.initialize_table()
self.controller.logger.info('app started successfully')
def initialize(self):
"""
Initialize the tKinter app (GUI)
by creating frames and graphical components,
setting the window size etc.
"""
# self.bind("<Escape>", lambda x: self.destroy())
self.bind("<Escape>", on_close)
listFrame0 = Frame(self)
listFrame0.pack(side=TOP, fill=BOTH, expand=True)
listFrame = Frame(listFrame0)
listFrame.pack(side=LEFT, fill=BOTH, expand=True)
scrollbary = Scrollbar(listFrame, orient=VERTICAL)
scrollbary.pack(side=RIGHT, fill=Y)
scrollbarx = Scrollbar(listFrame, orient=HORIZONTAL)
scrollbarx.pack(side=BOTTOM, fill=X)
# bd --> border
self.listbox = Listbox(listFrame, bd=1, selectmode=SINGLE, yscrollcommand=scrollbary.set, xscrollcommand=scrollbarx.set)
self.listbox.bind('<<ListboxSelect>>', self.on_select_click)
scrollbary.config(command=self.listbox.yview)
scrollbarx.config(command=self.listbox.xview)
self.listbox.config(width=self.listbox.winfo_reqwidth() // 3) # width=self.listbox.winfo_reqwidth()
self.listbox.pack(side=LEFT, fill=BOTH, expand=True)
listFrame1 = Frame(listFrame0)
listFrame1.pack(side=LEFT, fill=BOTH, expand=True)
scrollbary1 = Scrollbar(listFrame1, orient=VERTICAL)
scrollbary1.pack(side=RIGHT, fill=Y)
scrollbarx1 = Scrollbar(listFrame1, orient=HORIZONTAL)
scrollbarx1.pack(side=BOTTOM, fill=X)
# bd --> border
self.listbox1 = Listbox(listFrame1, bd=0, selectmode=SINGLE, yscrollcommand=scrollbary1.set, xscrollcommand=scrollbarx1.set)
self.listbox1.bind('<<ListboxSelect>>', self.on_update_select_click)
scrollbary1.config(command=self.listbox1.yview)
scrollbarx1.config(command=self.listbox1.xview)
self.listbox1.config(width=self.listbox1.winfo_reqwidth() // 2) # width=self.listbox.winfo_reqwidth()
self.listbox1.pack(side=LEFT, fill=BOTH, expand=True)
text_frame = Frame(self)
text_frame.pack(fill=X) # ,expand=True)
self.created_str = tk.StringVar()
created = tk.Entry(text_frame, textvariable=self.created_str)
self.created_months = ttk.Combobox(text_frame)
self.created_months['values'] = ('01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12')
self.created_months.set(datetime.date.today().strftime('%m'))
self.created_months.state(['readonly'])
# self.created_months.bind('<<ComboboxSelected>>', self.On_table_select)
self.value_str = tk.StringVar()
value = tk.Entry(text_frame, textvariable=self.value_str)
self.category_str = tk.StringVar()
category = tk.Entry(text_frame, textvariable=self.category_str) # , state='readonly')
self.description_str = tk.StringVar()
description = tk.Entry(text_frame, textvariable=self.description_str)
fill_from_csv_button = Button(text_frame, text="fill from csv")
fill_from_csv_button.bind('<Button-1>', self.on_fill_from_csv_click)
self.db_tables = ttk.Combobox(text_frame)
self.db_tables.state(['readonly'])
self.db_tables.bind('<<ComboboxSelected>>', self.on_table_select)
created.pack(side=LEFT)
self.created_months.pack(side=LEFT)
value.pack(side=LEFT)
category.pack(side=LEFT)
description.pack(side=LEFT)
# check.pack(side=LEFT)
fill_from_csv_button.pack(side=LEFT)
self.db_tables.pack(side=LEFT)
button_frame = Frame(self)
button_frame.pack(fill=X) # ,expand=True)
save_button = Button(button_frame, text="save entry")
save_button.bind('<Button-1>', self.on_save_entry_click)
database_button = Button(button_frame, text="select database")
database_button.bind('<Button-1>', self.on_database_click)
self.database_path_str = tk.StringVar()
self.database_path = tk.Label(button_frame, textvariable=self.database_path_str, bg="white", anchor=tk.W)
save_button.pack(side=LEFT)
database_button.pack(side=RIGHT)
self.database_path.pack(side=RIGHT) # , expand=True, fill=BOTH fill=BOTH,
debugFrame = Frame(self)
debugFrame.pack(side=BOTTOM, fill=X) # ,expand=True)
self.last_entry = tk.StringVar()
self.path_label = tk.Label(debugFrame, textvariable=self.last_entry, bg="white", anchor=tk.W)
self.path_label.pack(side=LEFT, fill=BOTH, expand=True)
# print self.geometry()
self.update()
# self.geometry(self.geometry())
# self.update()
# print self.geometry()
# fix the size of the window by setting the window size to its own size
w = self.winfo_screenwidth()
# print w
# print 'reqwidth',self.winfo_reqwidth()
# h = self.winfo_screenheight()
self.geometry('{0}x{1}+{2}+{3}'.format(self.winfo_reqwidth(), self.winfo_reqheight() * 3, w - self.winfo_reqwidth() - 20, 0)) # self.geometry()
self.update()
self.minsize(self.winfo_reqwidth(), self.winfo_reqheight())
def clear_categories(self):
self.listbox.delete(0, END)
def add_to_categories(self, value):
self.listbox.insert(END, value)
def clear_entries(self):
self.listbox1.delete(0, END)
def add_to_entries(self, value):
self.listbox1.insert(END, value)
def on_database_click(self, event):
database_name = filedialog.askopenfilename(filetypes=(("money files", "*.db"), ("All files", "*.*")))
if database_name:
self.initialize_db(database_name=database_name)
# self.controller.initialize_db(database_name=fname)
# self.populate_tables_combobox()
# self.initialize_table()
@gui_show_entries
def on_fill_from_csv_click(self, event):
fname = filedialog.askopenfilename(filetypes=(("txt(csv)", "*.txt"), ("csv", "*.csv"), ("All files", "*.*")))
self.controller.fill_from_csv(fname)
# self.show_entries()
def on_table_select(self, event):
# print '---------------------------------', self.db_tables.current()
self.controller.logger.debug(self.db_tables.current())
self.initialize_table()
def on_select_click(self, event):
# ANCHOR has new value when mouse button is pressed
# ACTIVE has new value when mouse button is released
self.controller.logger.debug(tk.ANCHOR)
self.controller.logger.debug(self.listbox.get(tk.ANCHOR)[0])
self.category_str.set(self.listbox.get(tk.ANCHOR)[0]) # is tuple --> [0]
def on_update_select_click(self, event):
# ANCHOR has new value when mouse button is pressed
# ACTIVE has new value when mouse button is released
line = self.listbox1.get(tk.ANCHOR)
# print line
created = ''
value = ''
category = ''
description = ''
if len(line) > 0:
self.controller.database.id = int(line[0])
# print 'selected id', self.controller.database.id
if len(line) > 1:
created = line[1]
if len(line) > 2:
value = line[2]
if len(line) > 3:
category = line[3]
if len(line) > 4:
description = line[4]
self.created_str.set(created)
self.value_str.set(value)
self.category_str.set(category)
self.description_str.set(description)
def on_save_entry_click(self, event):
if self.created_str.get():
ddate = self.created_str.get()
else:
ddate = self.created_months.cget('values')[self.created_months.current()]
value = self.value_str.get()
category = self.category_str.get()
description = self.description_str.get()
args = self.controller.validate_input(ddate=ddate, value=value, category=category, description=' '.join(description))
self.insert_into_db(args)
def populate_tables_combobox(self):
self.db_tables['values'] = self.controller.get_all_tables()
# print 'all the tables in the combobox:', self.db_tables.cget('values')
# init with firs table in list
self.db_tables.set(self.db_tables.cget('values')[0])
# print 'all the tables in the combobox:', self.db_tables.cget('values')
# print 'done populating table comboboxes'
def initialize_db(self, database_name=''):
self.controller.initialize_db(database_name=database_name)
self.populate_tables_combobox()
self.initialize_table()
@gui_populate_categories
@gui_show_entries
def initialize_table(self):
tablename = self.db_tables.cget('values')[self.db_tables.current()]
self.controller.initialize_table(table=tablename)
self.database_path_str.set(os.path.basename(self.controller.database_name) + ' ' + self.controller.database.table)
# print "databse path: ", self.database_path_str.get()
# self.populate_categories()
# self.show_entries()
def populate_categories(self):
# print '===populate_categories(self)==='
self.clear_categories()
# get all categories from the database
rows = self.controller.get_all_categories()
if rows:
for row in rows:
self.add_to_categories(row)
def show_entries(self):
# print '===SHOW ENTRIES==='
self.clear_entries()
# get last items from the database
rows = self.controller.get_latest_entries()
if rows:
for row in rows:
self.add_to_entries(row)
@gui_show_entries
def insert_into_db(self, args):
if not args:
self.controller.logger.error('no valid arguments given')
raise ValueError('no valid arguments given')
self.last_entry.set(args)
self.controller.insert_into_db(args=args)
