MirrorDC is a simple wrapper class which is always associated with a real
DC object and either forwards all of its operations to it
without changes (no mirroring takes place) or exchanges x and y
coordinates which makes it possible to reuse the same code to draw a figure and
its mirror — i.e. reflection related to the diagonal line $x == y$.
MirrorDC has been added in Widgets version 2.5.0.
Creates a (maybe) mirrored DC associated with the real dc. Everything
drawn on MirrorDC will appear (and maybe mirrored) on dc.
mirror specifies if we do mirror (if it is ) or not (if it is
).
[This page automatically generated from the Textile source at 2023-06-13 21:31:31 +0000]