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Diffstat (limited to 'Demo/tkinter/ttk/widget_state.py')
-rw-r--r-- | Demo/tkinter/ttk/widget_state.py | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/Demo/tkinter/ttk/widget_state.py b/Demo/tkinter/ttk/widget_state.py deleted file mode 100644 index b68f13b..0000000 --- a/Demo/tkinter/ttk/widget_state.py +++ /dev/null @@ -1,83 +0,0 @@ -"""Sample demo showing widget states and some font styling.""" -from tkinter import ttk - -states = ['active', 'disabled', 'focus', 'pressed', 'selected', - 'background', 'readonly', 'alternate', 'invalid'] - -for state in states[:]: - states.append("!" + state) - -def reset_state(widget): - nostate = states[len(states) // 2:] - widget.state(nostate) - -class App(ttk.Frame): - def __init__(self, title=None): - ttk.Frame.__init__(self, borderwidth=6) - self.master.title(title) - - self.style = ttk.Style() - - # get default font size and family - btn_font = self.style.lookup("TButton", "font") - fsize = str(self.tk.eval("font configure %s -size" % btn_font)) - self.font_family = self.tk.eval("font configure %s -family" % btn_font) - if ' ' in self.font_family: - self.font_family = '{%s}' % self.font_family - self.fsize_prefix = fsize[0] if fsize[0] == '-' else '' - self.base_fsize = int(fsize[1 if fsize[0] == '-' else 0:]) - - # a list to hold all the widgets that will have their states changed - self.update_widgets = [] - - self._setup_widgets() - - def _set_font(self, extra=0): - self.style.configure("TButton", font="%s %s%d" % (self.font_family, - self.fsize_prefix, self.base_fsize + extra)) - - def _new_state(self, widget, newtext): - widget = self.nametowidget(widget) - - if not newtext: - goodstates = ["disabled"] - font_extra = 0 - else: - # set widget state according to what has been entered in the entry - newstates = set(newtext.split()) # eliminate duplicates - - # keep only the valid states - goodstates = [state for state in newstates if state in states] - # define a new font size based on amount of states - font_extra = 2 * len(goodstates) - - # set new widget state - for widget in self.update_widgets: - reset_state(widget) # remove any previous state from the widget - widget.state(goodstates) - - # update Ttk Button font size - self._set_font(font_extra) - return 1 - - def _setup_widgets(self): - btn = ttk.Button(self, text='Enter states and watch') - - entry = ttk.Entry(self, cursor='xterm', validate="key") - entry['validatecommand'] = (self.register(self._new_state), '%W', '%P') - entry.focus() - - self.update_widgets.append(btn) - entry.validate() - - entry.pack(fill='x', padx=6) - btn.pack(side='left', pady=6, padx=6, anchor='n') - self.pack(fill='both', expand=1) - - -def main(): - app = App("Widget State Tester") - app.mainloop() - -if __name__ == "__main__": - main() |