--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Tools/pynche/ChipViewer.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,130 @@
+"""Chip viewer and widget.
+
+In the lower left corner of the main Pynche window, you will see two
+ChipWidgets, one for the selected color and one for the nearest color. The
+selected color is the actual RGB value expressed as an X11 #COLOR name. The
+nearest color is the named color from the X11 database that is closest to the
+selected color in 3D space. There may be other colors equally close, but the
+nearest one is the first one found.
+
+Clicking on the nearest color chip selects that named color.
+
+The ChipViewer class includes the entire lower left quandrant; i.e. both the
+selected and nearest ChipWidgets.
+"""
+
+from Tkinter import *
+import ColorDB
+
+
+class ChipWidget:
+ _WIDTH = 150
+ _HEIGHT = 80
+
+ def __init__(self,
+ master = None,
+ width = _WIDTH,
+ height = _HEIGHT,
+ text = 'Color',
+ initialcolor = 'blue',
+ presscmd = None,
+ releasecmd = None):
+ # create the text label
+ self.__label = Label(master, text=text)
+ self.__label.grid(row=0, column=0)
+ # create the color chip, implemented as a frame
+ self.__chip = Frame(master, relief=RAISED, borderwidth=2,
+ width=width,
+ height=height,
+ background=initialcolor)
+ self.__chip.grid(row=1, column=0)
+ # create the color name
+ self.__namevar = StringVar()
+ self.__namevar.set(initialcolor)
+ self.__name = Entry(master, textvariable=self.__namevar,
+ relief=FLAT, justify=CENTER, state=DISABLED,
+ font=self.__label['font'])
+ self.__name.grid(row=2, column=0)
+ # create the message area
+ self.__msgvar = StringVar()
+ self.__name = Entry(master, textvariable=self.__msgvar,
+ relief=FLAT, justify=CENTER, state=DISABLED,
+ font=self.__label['font'])
+ self.__name.grid(row=3, 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)
+
+ def get_color(self):
+ return self.__chip['background']
+
+ def set_name(self, colorname):
+ self.__namevar.set(colorname)
+
+ def set_message(self, message):
+ self.__msgvar.set(message)
+
+ def press(self):
+ self.__chip.configure(relief=SUNKEN)
+
+ def release(self):
+ self.__chip.configure(relief=RAISED)
+
+
+
+class ChipViewer:
+ def __init__(self, switchboard, master=None):
+ self.__sb = switchboard
+ self.__frame = Frame(master, relief=RAISED, borderwidth=1)
+ self.__frame.grid(row=3, column=0, ipadx=5, sticky='NSEW')
+ # 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):
+ # Selected always shows the #rrggbb name of the color, nearest always
+ # shows the name of the nearest color in the database. BAW: should
+ # an exact match be indicated in some way?
+ #
+ # Always use the #rrggbb style to actually set the color, since we may
+ # not be using X color names (e.g. "web-safe" names)
+ colordb = self.__sb.colordb()
+ rgbtuple = (red, green, blue)
+ rrggbb = ColorDB.triplet_to_rrggbb(rgbtuple)
+ # find the nearest
+ nearest = colordb.nearest(red, green, blue)
+ nearest_tuple = colordb.find_byname(nearest)
+ nearest_rrggbb = ColorDB.triplet_to_rrggbb(nearest_tuple)
+ self.__selected.set_color(rrggbb)
+ self.__nearest.set_color(nearest_rrggbb)
+ # set the name and messages areas
+ self.__selected.set_name(rrggbb)
+ if rrggbb == nearest_rrggbb:
+ self.__selected.set_message(nearest)
+ else:
+ self.__selected.set_message('')
+ self.__nearest.set_name(nearest_rrggbb)
+ self.__nearest.set_message(nearest)
+
+ def __buttonpress(self, event=None):
+ self.__nearest.press()
+
+ def __buttonrelease(self, event=None):
+ self.__nearest.release()
+ rrggbb = self.__nearest.get_color()
+ red, green, blue = ColorDB.rrggbb_to_triplet(rrggbb)
+ self.__sb.update_views(red, green, blue)