You can now set any paint tool to mirror painting relatively
horizontal/vertical axis or a central point (any combination of these 3
symmetries).
This has been implemented as a new multi-stroke core, where every stroke
is actually handled as a multi-stroke (default of size 1).
This is also the first usage of custom guides for symmetry guiding.
Current version has to be activated in the playground.
- don't include <gdk-pixbuf/gdk-pixbuf.h> in headers in app/
- instead, include it in many .c files instead of <glib-object.h>,
finally acknowledging the fact that app/ depends on gdk-pixbuf almost
globally
- fix up includes as if libgimpbase depended in GIO, which it soon will
such as masks and outlines. The cache is currently very stupid and
only cacheds the last transformed object. Add caches to GimpBrush for
its mask, its pixmap and its boundary, and remove the same caches and
a ton of members from GimpBrushCore. This involves adding lots of
const qualifiers because GimpBrush returns const pointers now for
trasnformed stuff.
Jehan