#!/usr/bin/env python
#
# $Id: OptionFontButton.py,v 1.4 2001/11/03 11:05:22 doughellmann Exp $
#
# Copyright 2001 Doug Hellmann.
#
#
# All Rights Reserved
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose and without fee is hereby
# granted, provided that the above copyright notice appear in all
# copies and that both that copyright notice and this permission
# notice appear in supporting documentation, and that the name of Doug
# Hellmann not be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior
# permission.
#
# DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
# NO EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
"""Button which controls a font chooser dialog.
This button type is intended to be used in preferencess dialog to
bring up an interface for editing a font specification. The
'PrefsDialog' and 'TagAttributeChooserDialog' use this.
"""
__rcs_info__ = {
#
# Creation Information
#
'module_name' : '$RCSfile: OptionFontButton.py,v $',
'rcs_id' : '$Id: OptionFontButton.py,v 1.4 2001/11/03 11:05:22 doughellmann Exp $',
'creator' : 'Doug Hellmann <doug@hellfly.net>',
'project' : 'PmwContribD',
'created' : 'Sat, 05-May-2001 11:34:05 EDT',
#
# Current Information
#
'author' : '$Author: doughellmann $',
'version' : '$Revision: 1.4 $',
'date' : '$Date: 2001/11/03 11:05:22 $',
}
#
# Import system modules
#
import Pmw
from Tkinter import *
import string
#
# Import Local modules
#
from TagAttributeChooserDialog import TagAttributeChooserDialog
#
# Module
#
class OptionFontButton(Pmw.LabeledWidget):
"""Button which controls a font chooser dialog.
This button type is intended to be used in preferencess dialog to
bring up an interface for editing a font specification. The
'PrefsDialog' and 'TagAttributeChooserDialog' use this.
Options
'command' -- Callback to be executed when value changes.
'variable' -- Tkinter StringVar instance to be kept up to date
based on the value of the font specification.
"""
def __init__(self, parent=None, **kw):
optiondefs = (
('command', None, Pmw.INITOPT),
('variable', None, Pmw.INITOPT),
('title', 'Click to set', Pmw.INITOPT),
)
self.defineoptions(kw, optiondefs)
Pmw.LabeledWidget.__init__(self, parent)
interior = self.interior()
b = self.createcomponent(
'button', (), None,
Button, (interior,),
text=self['title'],
command=self.command,
relief=FLAT,
)
b.pack(side=LEFT, fill=X)
self.dlg = TagAttributeChooserDialog(self.interior())
self.dlg.withdraw()
if self['variable']:
self['variable'].trace('w', self.variable_trace)
self.initialiseoptions(OptionFontButton)
self.variable_trace()
return
def variable_trace(self, *args):
"Follow the changes to the variable."
#print 'tracing ', args
var = self['variable']
current_val = var.get()
#print 'current val="%s"' % str(current_val)
if not current_val:
return
spec = eval(current_val)
try:
fontspec, tagspec = spec
except ValueError:
fontspec = spec
tagspec = {}
#print '\tfontspec=', fontspec
#print '\ttagspec=', tagspec
self.configure(button_font=fontspec)
apply(self.component('button').configure, (), tagspec)
dlg_params = {}
dlg_params.update(tagspec)
try:
dlg_params['family'] = fontspec[0]
dlg_params['size'] = fontspec[1]
except IndexError:
# tried for too many items
pass
for item in fontspec[2:]:
dlg_params[string.lower(item)] = 1
#print '\tdlg_params=', dlg_params
if dlg_params.has_key('font'):
del dlg_params['font']
apply(self.dlg.configure, (), dlg_params)
return
def command(self, *args):
"Callback for when button is pressed."
#print 'button pressed'
#print '\t', self['variable'].get()
result = self.dlg.activate()
if not result:
return
#fontspec, tagspec = result
self['variable'].set(str(result))
return
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