Tkinter reference: a GUI for Python |  |
Tkinter reference: a GUI for Python | |
Here is a code fragment showing the creation of a
canvas with horizontal and vertical scrollbars. In
this fragment, self is assumed
to be a Frame widget.
self.canv = Canvas ( self, width=600, height=400,
scrollregion=(0, 0, 1200, 800) )
self.canv.grid ( row=0, column=0 )
self.scrollY = Scrollbar ( self, orient=VERTICAL,
command=self.canv.yview )
self.scrollY.grid ( row=0, column=1, sticky=N+S )
self.scrollX = Scrollbar ( self, orient=HORIZONTAL,
command=self.canv.xview )
self.scrollX.grid ( row=1, column=0, sticky=E+W )
self.canv["xscrollcommand"] = self.scrollX.set
self.canv["yscrollcommand"] = self.scrollY.setNotes:
The connection goes both ways. The canvas's
xscrollcommand option has to
be connected to the horizontal scrollbar's
.set method, and the
scrollbar's command option has
to be connected to the canvas's
.xview method. The vertical
scrollbar and canvas must have the same mutual
connection.
The sticky options on the
.grid()
method calls for the scrollbars force them to stretch
just enough to fit the corresponding dimension of the
canvas.