import Tkinter
import string
def initialise(root, size=None, fontScheme = None):
global _fontSize
if size is not None:
_fontSize = size
if fontScheme == 'pmw1':
defaultFont = logicalfont('Helvetica')
menuFont = logicalfont('Helvetica', weight='bold', slant='italic')
scaleFont = logicalfont('Helvetica', slant='italic')
root.option_add('*Font', defaultFont, 'userDefault')
root.option_add('*Menu*Font', menuFont, 'userDefault')
root.option_add('*Menubutton*Font', menuFont, 'userDefault')
root.option_add('*Scale.*Font', scaleFont, 'userDefault')
balloonFont = logicalfont('Helvetica', -6, pixel = '12')
if not fontexists(root, balloonFont):
balloonFont = logicalfont('Helvetica', -2)
root.option_add('*Balloon.*Font', balloonFont, 'userDefault')
def fontexists(widget, fontName):
test = Tkinter.Label(widget)
exists = 1
try:
test.configure(font = fontName)
except Tkinter.TclError:
exists = 0
test.destroy()
return exists
maxfontwidthcache = {}
def maxfontwidth(widget, fontName):
if not maxfontwidthcache.has_key(fontName):
test = Tkinter.Text(widget)
test.tag_configure('FONTTAG', font=fontName)
test.insert('end', 'W', ('FONTTAG'))
maxfontwidthcache[fontName] = test.dlineinfo('1.0')[2]
test.destroy()
return maxfontwidthcache[fontName]
def logicalfont(name='Helvetica', sizeIncr = 0, **kw):
if not fontInfo.has_key(name):
raise ValueError, 'font %s does not exist' % name
rtn = []
for field in _fontFields:
if kw.has_key(field):
logicalValue = kw[field]
elif fontInfo[name].has_key(field):
logicalValue = fontInfo[name][field]
else:
logicalValue = '*'
if propertyAliases[name].has_key((field, logicalValue)):
realValue = propertyAliases[name][(field, logicalValue)]
elif propertyAliases[name].has_key((field, None)):
realValue = propertyAliases[name][(field, None)]
elif propertyAliases[None].has_key((field, logicalValue)):
realValue = propertyAliases[None][(field, logicalValue)]
elif propertyAliases[None].has_key((field, None)):
realValue = propertyAliases[None][(field, None)]
else:
realValue = logicalValue
if field == 'size':
if realValue == '*':
realValue = _fontSize
realValue = str((realValue + sizeIncr) * 10)
rtn.append(realValue)
return string.join(rtn, '-')
def logicalfontnames():
return fontInfo.keys()
_fontSize = 14
_fontFields = (
'registry', 'foundry', 'family', 'weight', 'slant', 'width', 'style',
'pixel', 'size', 'xres', 'yres', 'spacing', 'avgwidth', 'charset', 'encoding')
# <propertyAliases> defines other names for which property values may
# be known by. This is required because italics in adobe-helvetica
# are specified by 'o', while other fonts use 'i'.
propertyAliases = {}
propertyAliases[None] = {
('slant', 'italic') : 'i',
('slant', 'normal') : 'r',
('weight', 'light') : 'normal',
('width', 'wide') : 'normal',
('width', 'condensed') : 'normal',
}
# describes a 'logical' font, giving the default values of
# some of its properties.
fontInfo = {}
fontInfo['Helvetica'] = {
'foundry' : 'adobe',
'family' : 'helvetica',
'registry' : '',
'charset' : 'iso8859',
'encoding' : '1',
'spacing' : 'p',
'slant' : 'normal',
'width' : 'normal',
'weight' : 'normal',
}
propertyAliases['Helvetica'] = {
('slant', 'italic') : 'o',
('weight', 'normal') : 'medium',
('weight', 'light') : 'medium',
}
fontInfo['Times'] = {
'foundry' : 'adobe',
'family' : 'times',
'registry' : '',
'charset' : 'iso8859',
'encoding' : '1',
'spacing' : 'p',
'slant' : 'normal',
'width' : 'normal',
'weight' : 'normal',
}
propertyAliases['Times'] = {
('weight', 'normal') : 'medium',
('weight', 'light') : 'medium',
}
fontInfo['Fixed'] = {
'foundry' : 'misc',
'family' : 'fixed',
'registry' : '',
'charset' : 'iso8859',
'encoding' : '1',
'spacing' : 'c',
'slant' : 'normal',
'width' : 'normal',
'weight' : 'normal',
}
propertyAliases['Fixed'] = {
('weight', 'normal') : 'medium',
('weight', 'light') : 'medium',
('style', None) : '',
('width', 'condensed') : 'semicondensed',
}
fontInfo['Courier'] = {
'foundry' : 'adobe',
'family' : 'courier',
'registry' : '',
'charset' : 'iso8859',
'encoding' : '1',
'spacing' : 'm',
'slant' : 'normal',
'width' : 'normal',
'weight' : 'normal',
}
propertyAliases['Courier'] = {
('weight', 'normal') : 'medium',
('weight', 'light') : 'medium',
('style', None) : '',
}
fontInfo['Typewriter'] = {
'foundry' : 'b&h',
'family' : 'lucidatypewriter',
'registry' : '',
'charset' : 'iso8859',
'encoding' : '1',
'spacing' : 'm',
'slant' : 'normal',
'width' : 'normal',
'weight' : 'normal',
}
propertyAliases['Typewriter'] = {
('weight', 'normal') : 'medium',
('weight', 'light') : 'medium',
}