Updated to new post-PMW framework. Moved generators to here and added
the StripViewer class.
This commit is contained in:
Barry Warsaw
parent
93d27547d0
commit
0dc9c92b10
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@ -21,6 +21,33 @@ BTNUP = 5
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BTNDRAG = 6
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def constant(numchips):
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step = 255.0 / (numchips - 1)
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start = 0.0
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seq = []
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while numchips > 0:
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seq.append(int(start))
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start = start + step
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numchips = numchips - 1
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return seq
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# red variations, green+blue = cyan constant
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def constant_cyan_generator(numchips, red, green, blue):
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seq = constant(numchips)
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return map(None, seq, [green] * numchips, [blue] * numchips)
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# green variations, red+blue = magenta constant
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def constant_magenta_generator(numchips, red, green, blue):
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seq = constant(numchips)
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return map(None, [red] * numchips, seq, [blue] * numchips)
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# blue variations, red+green = yellow constant
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def constant_yellow_generator(numchips, red, green, blue):
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seq = constant(numchips)
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return map(None, [red] * numchips, [green] * numchips, seq)
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class LeftArrow:
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_ARROWWIDTH = 30
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@ -94,16 +121,16 @@ class StripWidget:
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def __init__(self, switchboard,
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parent = None,
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color = (128, 128, 128),
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chipwidth = self._CHIPWIDTH,
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chipheight = self._CHIPHEIGHT,
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numchips = self._NUMCHIPS,
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chipwidth = _CHIPWIDTH,
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chipheight = _CHIPHEIGHT,
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numchips = _NUMCHIPS,
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generator = None,
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axis = None,
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label = ''):
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# instance variables
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self.__generator = generator
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self.__axis = axis
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self.__numchips = numchips
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assert self.__axis in (0, 1, 2)
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self.__update_while_dragging = 0
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# the last chip selected
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@ -148,7 +175,7 @@ class StripWidget:
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# create the strip label
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self.__label = canvas.create_text(
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3, y + chipheight + 8,
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text=self['label'],
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text=label,
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anchor=W)
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# create the arrow and text item
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@ -158,39 +185,29 @@ class StripWidget:
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chipx = self.__arrow_x(len(chips) - 1)
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self.__rightarrow = RightArrow(canvas, chipx)
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# Invoked when one of the chips is clicked. This should just tell the
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# switchboard to set the color on all the output components
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def __set_color(self):
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rgbtuple = self['color']
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self.set_color(self, rgbtuple)
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def __arrow_x(self, chipnum):
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coords = self.__canvas.coords(chipnum+1)
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assert coords
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x0, y0, x1, y1 = coords
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return (x1 + x0) / 2.0
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# Invoked when one of the chips is clicked. This should just tell the
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# switchboard to set the color on all the output components
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def __select_chip(self, event=None):
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if self.__delegate:
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x = event.x
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y = event.y
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canvas = self.__canvas
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chip = canvas.find_overlapping(x, y, x, y)
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if chip and (1 <= chip[0] <= self.__numchips):
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color = self.__chips[chip[0]-1]
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rgbtuple = ColorDB.rrggbb_to_triplet(color)
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etype = int(event.type)
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if (etype == BTNUP or self.__update_while_dragging):
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# update everyone
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self.__delegate.set_color(self, rgbtuple)
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else:
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# just track the arrows
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self.__trackarrow(chip[0], rgbtuple)
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def __set_delegate(self):
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self.__delegate = self['delegate']
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x = event.x
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y = event.y
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canvas = self.__canvas
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chip = canvas.find_overlapping(x, y, x, y)
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if chip and (1 <= chip[0] <= self.__numchips):
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color = self.__chips[chip[0]-1]
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red, green, blue = ColorDB.rrggbb_to_triplet(color)
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etype = int(event.type)
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if (etype == BTNUP or self.__update_while_dragging):
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# update everyone
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self.__sb.update_views(red, green, blue)
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else:
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# just track the arrows
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self.__trackarrow(chip[0], (red, green, blue))
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def __trackarrow(self, chip, rgbtuple):
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# invert the last chip
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@ -221,10 +238,6 @@ class StripWidget:
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self.__canvas.itemconfigure(chip, outline=outline)
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#
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# public interface
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#
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def update_yourself(self, red, green, blue):
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assert self.__generator
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i = 1
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@ -233,7 +246,7 @@ class StripWidget:
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tclcmd = []
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tk = self.__canvas.tk
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# get the red, green, and blue components for all chips
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for t in self.__generator(self.__numchips, rgbtuple):
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for t in self.__generator(self.__numchips, red, green, blue):
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rrggbb = ColorDB.triplet_to_rrggbb(t)
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chips.append(rrggbb)
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tred, tgreen, tblue = t
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@ -248,3 +261,28 @@ class StripWidget:
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def set_update_while_dragging(self, flag):
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self.__update_while_dragging = flag
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class StripViewer:
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def __init__(self, switchboard, parent=None):
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self.__sb = switchboard
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self.__reds = StripWidget(switchboard, parent,
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generator=constant_cyan_generator,
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axis=0,
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label='Red Variations')
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self.__greens = StripWidget(switchboard, parent,
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generator=constant_magenta_generator,
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axis=1,
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label='Green Variations')
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self.__blues = StripWidget(switchboard, parent,
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generator=constant_yellow_generator,
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axis=2,
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label='Blue Variations')
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def update_yourself(self, red, green, blue):
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self.__reds.update_yourself(red, green, blue)
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self.__greens.update_yourself(red, green, blue)
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self.__blues.update_yourself(red, green, blue)
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