From dc492e6738a97d3ff55fb98295660e0edf8a51fa Mon Sep 17 00:00:00 2001 From: Barry Warsaw Date: Tue, 29 Sep 1998 15:44:20 +0000 Subject: [PATCH] Un PMW-ified --- Tools/pynche/ChipViewer.py | 145 ++++++++++++++++++++----------------- 1 file changed, 79 insertions(+), 66 deletions(-) diff --git a/Tools/pynche/ChipViewer.py b/Tools/pynche/ChipViewer.py index a2a90347c44..b4dfa857c5c 100644 --- a/Tools/pynche/ChipViewer.py +++ b/Tools/pynche/ChipViewer.py @@ -1,79 +1,92 @@ -"""Color chip megawidget. -This widget is used for displaying a color. It consists of three components: - - label -- a Tkinter.Label, this is the chip's label which is displayed - about the color chip - chip -- A Tkinter.Frame, the frame displaying the color - name -- a Tkinter.Label, the name of the color - -In addition, the megawidget understands the following options: - - color -- the color displayed in the chip and name widgets - -When run as a script, this program displays a sample chip. -""" - - +from types import StringType from Tkinter import * -import Pmw +import ColorDB -class ChipWidget(Pmw.MegaWidget): + +class ChipWidget: _WIDTH = 150 _HEIGHT = 80 - def __init__(self, parent=None, **kw): - options = (('chip_borderwidth', 2, None), - ('chip_width', self._WIDTH, None), - ('chip_height', self._HEIGHT, None), - ('label_text', 'Color', None), - ('color', 'blue', self.__set_color), - ) - self.defineoptions(kw, options) + def __init__(self, + parent = None, + width = _WIDTH, + height = _HEIGHT, + text = 'Color', + initialcolor = 'blue', + presscmd = None, + releasecmd = None): + # create the text label + self.__label = Label(parent, text=text) + self.__label.grid(row=0, column=0) + # create the color chip, implemented as a frame + self.__chip = Frame(parent, relief=RAISED, borderwidth=2, + width=width, + height=height, + background=initialcolor) + self.__chip.grid(row=1, column=0) + # create the color name, ctor argument must be a string + self.__name = Label(parent, text=initialcolor) + self.__name.grid(row=2, column=0) + # + # set bindings + if presscmd: + self.__chip.bind('', presscmd) + if releasecmd: + self.__chip.bind('', releasecmd) - # initialize base class -- after defining options - Pmw.MegaWidget.__init__(self, parent) - interiorarg = (self.interior(),) + def set_color(self, color): + self.__chip.config(background=color) + self.__name.config(text=color) - # 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) + def get_color(self): + return self.__chip['background'] - # create the color chip - self.__chip = self.createcomponent( - 'chip', (), None, - Frame, interiorarg, - relief=RAISED, borderwidth=2) - self.__chip.grid(row=1, column=0) + def press(self): + self.__chip.configure(relief=SUNKEN) - # 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 `color' option is set - def __set_color(self): - color = self['color'] - self.__chip['background'] = color - self.__name['text'] = color + def release(self): + self.__chip.configure(relief=RAISED) -if __name__ == '__main__': - root = Pmw.initialise(fontScheme='pmw1') - root.title('ChipWidget demonstration') +class ChipViewer: + def __init__(self, switchboard, parent=None): + self.__sb = switchboard + self.__frame = Frame(parent) + self.__frame.pack() + # create the chip that will display the currently selected color + # exactly + self.__sframe = Frame(self.__frame) + self.__sframe.grid(row=0, column=0) + self.__selected = ChipWidget(self.__sframe, text='Selected') + # create the chip that will display the nearest real X11 color + # database color name + self.__nframe = Frame(self.__frame) + self.__nframe.grid(row=0, column=1) + self.__nearest = ChipWidget(self.__nframe, text='Nearest', + presscmd = self.__buttonpress, + releasecmd = self.__buttonrelease) - exitbtn = Button(root, text='Exit', command=root.destroy) - exitbtn.pack(side=BOTTOM) - widget = ChipWidget(root, color='red', - chip_width=200, - label_text='Selected Color') - widget.pack() - root.mainloop() + def update_yourself(self, red, green, blue): + # TBD: should exactname default to X11 color name if their is an exact + # match for the rgb triplet? Part of me says it's nice to see both + # names for the color, the other part says that it's better to + # feedback the exact match. + rgbtuple = (red, green, blue) + try: + allcolors = self.__sb.colordb().find_byrgb(rgbtuple) + exactname = allcolors[0] + except ColorDB.BadColor: + exactname = ColorDB.triplet_to_rrggbb(rgbtuple) + nearest = self.__sb.colordb().nearest(red, green, blue) + self.__selected.set_color(exactname) + self.__nearest.set_color(nearest) + + def __buttonpress(self, event=None): + self.__nearest.press() + + def __buttonrelease(self, event=None): + self.__nearest.release() + colorname = self.__nearest.get_color() + red, green, blue = self.__sb.colordb().find_byname(colorname) + self.__sb.update_views(red, green, blue)