requirements_counter = IntVar()
requirements_counter.set(1)
Button(mainframe, text="Add", command=add_requirement).grid(column=2, row=9, sticky=(N,W))
#text area
#txt_frm = Frame(mainframe, width=200, height=100) #larger
txt_frm = Frame(mainframe, width=500, height=100) #smaller
txt_frm.pack(fill="both", expand=True)
#for a smaller frame
txt_frm.pack_propagate(0)
txt_frm.grid(column=0, columnspan= 2, row=9, sticky=(W,E))
# ensure a consistent GUI size
txt_frm.grid_propagate(False)
# implement stretchability
txt_frm.grid_rowconfigure(0, weight=1)
txt_frm.grid_columnconfigure(0, weight=1)
# create a Text widget
t = Text(txt_frm, borderwidth=3, relief="sunken")
t.config(font=("consolas", 12), undo=True, wrap='word')
t.grid(row=0, column=0, sticky="nsew", padx=2, pady=2)
# create a Scrollbar and associate it with txt
scrollb = Scrollbar(txt_frm, command=t.yview)
scrollb.grid(row=0, column=1, sticky='nsew')
t['yscrollcommand'] = scrollb.set
t.pack()
def __init__(self,
master,
xml=None,
heading_text=None,
heading_anchor=None,
padding=None,
cursor=None,
takefocus=None,
style=None,
width=1000,
height=1000):
Frame.__init__(self,
master,
class_="XML_Viewer",
width=width,
height=height)
Frame.grid_propagate(self, False)
self._vsb = Scrollbar(self, orient=VERTICAL)
self._hsb = Scrollbar(self, orient=HORIZONTAL)
kwargs = {}
kwargs["yscrollcommand"] = lambda f, l: autoscroll(self._vsb, f, l)
kwargs["xscrollcommand"] = lambda f, l: autoscroll(self._hsb, f, l)
if style is not None:
kwargs["style"] = style
if padding is not None:
kwargs["padding"] = padding
if cursor is not None:
kwargs["cursor"] = cursor
if takefocus is not None:
kwargs["takefocus"] = takefocus
self._treeview = Treeview(self, **kwargs)
if heading_text is not None:
if heading_anchor is not None:
self._treeview.heading("#0",
text=heading_text,
anchor=heading_anchor)
else:
self._treeview.heading("#0", text=heading_text)
self._treeview.bind("<<TreeviewOpen>>", self._on_open)
self._treeview.bind("<<TreeviewClose>>", self._on_close)
# Without this line, horizontal scrolling doesn't work properly.
self._treeview.column("#0", stretch=True, minwidth=100)
self._vsb['command'] = self._treeview.yview
self._hsb['command'] = self._treeview.xview
self._treeview.grid(column=0, row=0, sticky=N + S + W + E)
self._vsb.grid(column=1, row=0, sticky=N + S)
self._hsb.grid(column=0, row=1, sticky=E + W)
self.grid_columnconfigure(0, weight=1)
self.grid_rowconfigure(0, weight=1)
self._element_tree = None
self._item_ID_to_element = {}
if xml is not None:
self.parse_xml(xml)
