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--- caching:ex1 [2007/02/26 18:24] – bdefrain
+++ caching:ex1 [2021/02/05 13:51] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-====== Caching: Constant Override ======
+[[caching:intro|Intro]]
+[[caching:ex1|Ex1]]
+[[caching:ex2|Ex2]]
+[[caching:ex3|Ex3]]
+[[caching:ex4|Ex4]]====== Caching: Constant Override ======
 **Task:** Pass ''tests.BoundsConstant''.
-The ''getBounds()'' method of a ''Group'' could be understood to be a conservative approximation of the bounding box of a group. If that is true, then it would be a legal (and much faster) implementation of ''getBounds()'' to simply always return a rectangle consisting of the entire canvas. The entire canvas is returned by the static member ''FigureElement.MAX_BOUNDS''. Write an aspect to implement this change.
+A first, very crude approximation of the bounding box, would be to return the entire drawing canvas. This is certainly very fast to calculate (it is a constant value), although it might mean excessive redrawing.
+Implement an aspect to return the entire canves when the ''getBounds()'' method of a ''Group'' is invoked. The entire canvas can be retrieved through the static field ''MAX_BOUNDS'' of ''FigureElement''.
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