Hi Jane,
On Tue, 24 Jul 2012 13:45:38 +0000 (UTC)
Jane <jgris...@gmail.com> wrote:
> Mark Summerfield <list <at> qtrac.plus.com> writes:
>
> >
> > Hi,
> >
> > I want to create a toggle button, i.e., a button that when clicked goes
> > down (if it is up) and goes up (if it is down).
> >
> > One easy way to achieve this is to set the button's style to
> > "Toolbutton" (see self.toggle2). But unfortunately, that gets rid of
> > the button's relief so it looks out of place amongst other non-toggling
> > buttons.
> >
> > I solved if for Linux using a custom style (see self.toggle3). But this
> > doesn't work on Windows and I can't figure out how to solve it.
> >
> > Can anyone suggest a solution?
[snip]
> Hi ...
>
> Found that setting the ttk.Checkbutton style to 'TButton' forces it to
> appear as themed button; then, on selection, changing it to 'Toolbutton'
> gives it a 'sunken' appearance. Works ok under Windows 7.
>
> cb1 = ttk.Checkbutton(f, style='Demo.TButton',
> image=(self.noletters, 'selected',
> self.letters), command=lambda: self._cb_value_changed(cb1))
>
> def _cb_value_changed(self, cb):
> # if a checkbutton is selected, use the 'Toolbutton'
> # style to make it appear 'sunken'
> if 'selected' in cb.state():
> cb['style'] = 'Demo.Toolbutton'
> else:
> cb['style'] = 'Demo.TButton'
I tried your idea on Windows 7 & Linux (& a slightly simplified version
which did the same). Yes, it correctly changes the appearance between
raised and sunken: but in the sunken state the width of the button
shrinks to fit the text -- and there's no width property for styled
buttons:-(
Here's the code:
############################################################
import tkinter.ttk
class Window(tkinter.ttk.Frame):
def __init__(self, master=None):
super().__init__(master)
self.toggle1 = tkinter.ttk.Button(self, text="Off (1)",
command=lambda *args: self.toggle(self.toggle1, 1))
self.toggle1.pack(padx=5, pady=5)
self.toggle2 = tkinter.ttk.Button(self, text="Off (2)",
style="Toolbutton",
command=lambda *args: self.toggle(self.toggle2, 2))
self.toggle2.pack(padx=5, pady=5)
self.toggle3 = tkinter.ttk.Button(self, text="Off (3)",
command=lambda *args: self.toggle(self.toggle3, 3))
self.toggle3.pack(padx=5, pady=5)
style = tkinter.ttk.Style()
style.configure("Toggle.TButton")
style.map("Toggle.TButton", relief=[("pressed", "sunken"),
("selected", "sunken"), ("!selected", "raised")])
self.toggle3.config(style="Toggle.TButton")
self.toggle4 = tkinter.ttk.Checkbutton(self,
style="Toggle.TButton", text="Off (4)",
command=lambda *args: self.toggle_style(self.toggle4, 4))
self.toggle4.pack(padx=5, pady=5)
tkinter.ttk.Button(self, text="Quit",
command=self.master.destroy).pack(padx=5, pady=5)
self.pack()
def toggle_style(self, button, number):
if button.instate(("selected",)):
button.config(text="Off ({})".format(number))
button.config(style="Toolbutton")
else:
button.config(text="On ({})".format(number))
button.config(style="Toggle.TButton")
def toggle(self, button, number):
if button.instate(("!selected",)):
button.state(("selected",))
button.config(text="On ({})".format(number))
else:
button.state(("!selected",))
button.config(text="Off ({})".format(number))
window = Window()
window.master.title("Toggle")
window.master.mainloop()
############################################################
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
C++, Python, Qt, PyQt - training and consultancy
"Programming in Go" - ISBN 0321774639
http://www.qtrac.eu/gobook.html
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