2003-07-14 Michael Natterer <mitch@gimp.org>
* app/paint/gimperaseroptions.[ch]: removed "gboolean hard"
member/property...
* app/paint/gimppaintoptions.[ch]: ...and added it here. Added
gimp_paint_options_get_brush_mode() utility function.
* app/paint/gimpairbrush.c
* app/paint/gimpclone.c
* app/paint/gimpconvolve.c
* app/paint/gimpdodgeburn.c
* app/paint/gimperaser.c
* app/paint/gimppaintbrush.c
* app/paint/gimppaintcore.h
* app/paint/gimppencil.c
* app/paint/gimpsmudge.c: use the new utility funtion where
appropriate. Removed trailing whitespace.
* app/tools/gimpdrawtool.[ch] (gimp_paint_tool_draw_boundary):
changed offset parameters from gint to gdouble so we can show the
brush preview at sub-pixel positions.
* app/tools/gimppainttool.c: use sub-pixel coordinates for the
brush preview if paint_options->hard is FALSE (doesn't work for
the pencil yet).
The new brush preview unveiled that the positioning of even-sized
brushes if off by 0.5 for soft brush application mode and off by
1.0 for hard application mode:
* app/paint/gimppaintcore.[ch] (gimp_paint_core_subsample_mask):
offset painting by 0.5 pixels on the brushes' even sized axes by
shuffling the subsample matrices around.
Added "subsampling" for HARD brush application mode since a pixel
of an even sized brush can snap to up to four different image
pixels depending on the sub-pixel coordinates of the stroke.
78262ef745