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Code Issues Projects Releases Wiki Activity

Fix for configuring widget-specific state

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Jonathan Harris 2017-05-03 11:08:40 +01:00
parent df67fba10c
commit d5e8ee3710
1 changed files with 26 additions and 27 deletions
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53
ttkHyperlinkLabel.py
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@ -38,7 +38,7 @@ if platform == 'win32':
# In addition to standard ttk.Label arguments, takes the following arguments:
# url: The URL as a string that the user will be sent to on clicking on non-empty label text. If url is a function it will be called on click with the current label text and should return the URL as a string.
# underline: If True/False the text is always/never underlined. If None (the default) the text is underlined only on hover.
# popup_copy: Whether right-click on non-empty label text pops up a context menu with a 'Copy' option. Defaults to no context menu. If popup_copy is a function it will be called with the current label text and should a boolean.
# popup_copy: Whether right-click on non-empty label text pops up a context menu with a 'Copy' option. Defaults to no context menu. If popup_copy is a function it will be called with the current label text and should return a boolean.
#
class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
@ -47,7 +47,7 @@ class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
self.popup_copy = kw.pop('popup_copy', False)
self.underline = kw.pop('underline', None) # override ttk.Label's underline
self.foreground = kw.get('foreground') or 'blue'
self.disabledforeground = kw.pop('disabledforeground', ttk.Style().lookup('TLabel', 'foreground', ('disabled',)))
self.disabledforeground = kw.pop('disabledforeground', ttk.Style().lookup('TLabel', 'foreground', ('disabled',))) # ttk.Label doesn't support disabledforeground option
if platform == 'darwin':
# Use tk.Label 'cos can't set ttk.Label background - http://www.tkdocs.com/tutorial/styles.html#whydifficult
@ -59,42 +59,41 @@ class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
self.bind('<Button-1>', self._click)
if self.popup_copy:
self.menu = tk.Menu(None, tearoff=tk.FALSE)
self.menu.add_command(label=_('Copy'), command = self.copy) # As in Copy and Paste
self.bind(platform == 'darwin' and '<Button-2>' or '<Button-3>', self._contextmenu)
self.menu = tk.Menu(None, tearoff=tk.FALSE)
self.menu.add_command(label=_('Copy'), command = self.copy) # As in Copy and Paste
self.bind(platform == 'darwin' and '<Button-2>' or '<Button-3>', self._contextmenu)
if self.underline is not False:
self.font_n = kw.get('font', ttk.Style().lookup('TLabel', 'font'))
self.font_u = tkFont.Font(font = self.font_n)
self.font_u.configure(underline = True)
if self.underline is True:
self.configure(font = self.font_u)
else:
self.bind('<Enter>', self._enter)
self.bind('<Leave>', self._leave)
self.bind('<Enter>', self._enter)
self.bind('<Leave>', self._leave)
self.configure(state = kw.get('state'), text = kw.get('text')) # set up initial appearance
# set up initial appearance
self.configure(state = kw.get('state', tk.NORMAL),
text = kw.get('text'),
font = kw.get('font', ttk.Style().lookup('TLabel', 'font')))
# Change cursor and appearance depending on state and text
def configure(self, cnf=None, **kw):
# This class' state
for thing in ['url', 'popup_copy', 'underline', 'foreground', 'disabledforeground']:
for thing in ['url', 'popup_copy', 'underline']:
if thing in kw:
setattr(self, thing, kw.pop(thing))
for thing in ['foreground', 'disabledforeground']:
if thing in kw:
setattr(self, thing, kw[thing])
# Emulate disabledforeground option for ttk.Label
if kw.get('state') == tk.DISABLED:
if 'foreground' not in kw:
kw['foreground'] = self.disabledforeground
if self.underline is not False and 'font' not in kw:
kw['font'] = self.font_n
if 'cursor' not in kw:
kw['cursor'] = 'arrow' # System default
elif 'state' in kw:
if 'foreground' not in kw:
kw['foreground'] = self.foreground
if self.underline is True and 'font' not in kw:
kw['font'] = self.font_u
if 'font' in kw:
self.font_n = kw['font']
self.font_u = tkFont.Font(font = self.font_n)
self.font_u.configure(underline = True)
kw['font'] = self.underline is True and self.font_u or self.font_n
# Hover cursor only if widget is enabled and text is non-empty
if ('text' in kw or 'state' in kw) and 'cursor' not in kw:
@ -109,12 +108,12 @@ class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
self.configure(None, **{key: value})
def _enter(self, event):
if str(self['state']) != tk.DISABLED:
self.configure(font = self.font_u)
if self.url and self.underline is not False and str(self['state']) != tk.DISABLED:
super(HyperlinkLabel, self).configure(font = self.font_u)
def _leave(self, event):
if self.underline is None:
self.configure(font = self.font_n)
if not self.underline:
super(HyperlinkLabel, self).configure(font = self.font_n)
def _click(self, event):
if self.url and self['text'] and str(self['state']) != tk.DISABLED: