http://bugs.squeak.org/view.php?id=6511 2009/9/25 Andrew P. Black <black@cs.pdx.edu>:
I've been playing with a Morphic implementation of "Joe the box" for an intro programming course. Â It shouldn't be hard, right?
The problem is rotation. Â It's easy to rotate a polygon morph, but I can't get a TextMorph (for the name) to rotate and stay centered. Â My next attempt (attached), was to use a transformation morph. Â This almost works, except that when rotating from a non-manhattan orientation, smurfs get left on the display.
The code is attached.
I try doing this in a workspace:
joe := NamedBoxMorph2 new. joe name: 'Fred'. joe openInWorld. joe color: Color lightBlue. joe turn: -45. joe turn: 45.
Do the
    joe turn: +/- 45
a few times. Â Bits of the rectangle are left on the display. Â Is this a bug in morphic, or a bug in my code (more likely)? Â Is tehre an easy fix/
The critical method from the filein is this one, I think:
BoxMorph2 >> initialize     "initialize this BoxMorph so that it looks like a Box in BoxWorld"     | rectangle b |     super initialize.     smoothing := 3.     b := Rectangle origin: 85 @ 200 extent: 80 @ 80.     rectangle := RectangleMorph new.     rectangle bounds: b.     rectangle color: Color transparent.     rectangle borderWidth: 1.     self addMorphCentered: rectangle.     self bounds: b.
I tired making the bounds of the boxMorph a pixel or two bigger (in the last line): this didn't help.
Any ideas?
    Andrew
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