| from types import StringType |
| from Tkinter import * |
| import ColorDB |
| |
| |
| class ChipWidget: |
| _WIDTH = 150 |
| _HEIGHT = 80 |
| |
| 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('<ButtonPress-1>', presscmd) |
| if releasecmd: |
| self.__chip.bind('<ButtonRelease-1>', releasecmd) |
| |
| def set_color(self, color): |
| self.__chip.config(background=color) |
| self.__name.config(text=color) |
| |
| def get_color(self): |
| return self.__chip['background'] |
| |
| def press(self): |
| self.__chip.configure(relief=SUNKEN) |
| |
| def release(self): |
| self.__chip.configure(relief=RAISED) |
| |
| |
| |
| 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) |
| |
| 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) |