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Last updated at 4:19 am UTC on 11 March 2017

Class comment:

This class is a special kind of Pen that instead of actually drawing lines records the destination points for those lines. These points can later be accessed through my accessing method #points.

This can be useful when determining the boundaries of a drawing session.


 | pen |
 pen := PenPointRecorder new.
 pen up; goto: 100@100; down; goto: 120@120.
 Transcript cr;
 	show: 'Bounding box for drawing: ';
 	show: (Rectangle encompassing: pen points)

Implementation note: Shouldn't we override #drawFrom:to:withFirstPoint: instead, and what about #drawLoopX:Y:? Aren't we missing those calls?