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1
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2 class Stage(Canvas):
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3
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4 """a fancy widget that shows light locations (and optionally their
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5 aim locations on an image of the stage. you can select or
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6 multiselect lights and drag them up or down to change their
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7 brightness.
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8
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9 ctrl-a is select all,
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10 ctrl-shift-a or clicking on no light deselects all,
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11 re-clicking a light with shift key down toggles whether it's in the selection.
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12 ctrl-drag-rectangle deselects the lights in the rectangle,
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13 shift-drag-rectangle selects the lights in the rectangle,
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14 drag-rectangle selects only the lights in the rectangle.
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15
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16 a light can be selected on its location point, it's aim point
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17 (which may or may not be present), or its name.
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18
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19 lights should be able to be interactively 'locked', which blocks
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20 them from being selected.
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21
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22 """
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23 def __init__(self,parent,**kw):
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24 Canvas.__init__(self,parent,**kw)
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25 if 'stageimage' in kw:
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26
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