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.  It shouldn't be hard, right?

The problem is rotation.  It's easy to rotate a polygon morph, but I can't get a TextMorph (for the name) to rotate and stay centered.  My next attempt (attached), was to use a transformation morph.  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.  Bits of the rectangle are left on the display.  Is this a bug in morphic, or a bug in my code (more likely)?  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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