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from Tkinter import *
import Pmw
class ChipWidget(Pmw.MegaWidget):
_WIDTH = 80
_HEIGHT = 100
def __init__(self, parent=None, **kw):
optionsdefs = (('chipcolor', 'blue', self.__set_color),
('width', self._WIDTH, self.__set_dims),
('height', self._HEIGHT, self.__set_dims),
('text', 'Color', self.__set_label),
)
self.defineoptions(kw, optionsdefs)
# initialize base class -- after defining options
Pmw.MegaWidget.__init__(self, parent)
interiorarg = (self.interior(),)
# create the label
self.__label = self.createcomponent(
# component name, aliases, group
'label', (), None,
# widget class, widget args
Label, interiorarg)
self.__label.grid(row=0, column=0)
# create the color chip
self.__chip = self.createcomponent(
'chip', (), None,
Frame, interiorarg,
relief=RAISED, borderwidth=2)
self.__chip.grid(row=1, column=0)
# create the color name
self.__name = self.createcomponent(
'name', (), None,
Label, interiorarg,)
self.__name.grid(row=2, column=0)
# Check keywords and initialize options
self.initialiseoptions(ChipWidget)
# called whenever `chipcolor' option is set
def __set_color(self):
color = self['chipcolor']
self.__chip['background'] = color
self.__name['text'] = color
def __set_dims(self):
width = self['width']
height = self['height']
self.__chip.configure(width=width, height=height)
def __set_label(self):
self.__label['text'] = self['text']
Pmw.forwardmethods(ChipWidget, Frame, '__chip')
if __name__ == '__main__':
root = Pmw.initialise(fontScheme='pmw1')
root.title('ChipWidget demonstration')
exitbtn = Button(root, text='Exit', command=root.destroy)
exitbtn.pack(side=BOTTOM)
widget = ChipWidget(root, chipcolor='red', width=200,
text='Selected Color')
widget.pack()
root.mainloop()
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