I ahve a canvas whoich people can draw objects on to.. lines circle and
polygons and stuff.
How do I (easily?) let the user be able to 'select' certian objects with
the mouse. For example, if a user wanted to select a line thats is in the
canvas to he could rotate that line, how would he do it? I have
button_press/release/motion mouse handlers.. but I can't figure out a way
to accomplish this.
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