Initial revision

Tools/pynche/ChipViewer.py

@@ -0,0 +1,71 @@
+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()