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Implement pattern colours for all backends.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@28850 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Fred Kiefer 2009-10-19 14:17:45 +00:00
parent d7dc549a3e
commit 3c8eab0c49
8 changed files with 361 additions and 9 deletions
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75
Source/cairo/CairoGState.m
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@ -747,7 +747,7 @@ static float floatToUserSpace(NSAffineTransform *ctm, float f)
{
float offs;
if ((remainderf(cairo_get_line_width(_ct), 2.0) == 0.0)
if ((remainderf((float)cairo_get_line_width(_ct), 2.0) == 0.0)
|| fillOrClip == YES)
offs = 0.0;
else
@ -810,6 +810,12 @@ static float floatToUserSpace(NSAffineTransform *ctm, float f)
{
if (_ct)
{
if (pattern != nil)
{
[self eofillPath: path withPattern: pattern];
return;
}
[self _setPath:YES];
cairo_set_fill_rule(_ct, CAIRO_FILL_RULE_EVEN_ODD);
cairo_fill(_ct);
@ -822,6 +828,12 @@ static float floatToUserSpace(NSAffineTransform *ctm, float f)
{
if (_ct)
{
if (pattern != nil)
{
[self fillPath: path withPattern: pattern];
return;
}
[self _setPath:YES];
cairo_fill(_ct);
}
@ -1340,3 +1352,64 @@ _set_op(cairo_t *ct, NSCompositingOperation op)
}
@end
@implementation CairoGState (PatternColor)
- (void *) saveClip
{
#if CAIRO_VERSION > CAIRO_VERSION_ENCODE(1, 4, 0)
cairo_status_t status;
cairo_rectangle_list_t *clip_rects = cairo_copy_clip_rectangle_list(_ct);
status = cairo_status(_ct);
if (status == CAIRO_STATUS_SUCCESS)
{
return clip_rects;
}
#endif
return NULL;
}
- (void) restoreClip: (void *)savedClip
{
#if CAIRO_VERSION > CAIRO_VERSION_ENCODE(1, 4, 0)
if (savedClip)
{
int i;
cairo_rectangle_list_t *clip_rects = (cairo_rectangle_list_t *)savedClip;
cairo_reset_clip(_ct);
if (cairo_version() >= CAIRO_VERSION_ENCODE(1, 6, 0))
{
for (i = 0; i < clip_rects->num_rectangles; i++)
{
cairo_rectangle_t rect = clip_rects->rectangles[i];
cairo_rectangle(_ct, rect.x, rect.y,
rect.width, rect.height);
cairo_clip(_ct);
}
}
else
{
for (i = 0; i < clip_rects->num_rectangles; i++)
{
cairo_rectangle_t rect = clip_rects->rectangles[i];
NSSize size = [_surface size];
cairo_rectangle(_ct, rect.x,
/* This strange computation is due
to the device offset missing for
clip rects in cairo < 1.6.0. */
rect.y + 2*(offset.y - size.height),
rect.width, rect.height);
cairo_clip(_ct);
}
}
cairo_rectangle_list_destroy(clip_rects);
}
#endif
}
@end