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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:
fredkiefer 2009-10-19 14:17:45 +00:00
parent 23904f379f
commit b40cb71904
8 changed files with 361 additions and 9 deletions
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69
Source/art/ARTGState.m
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@ -650,3 +650,72 @@ draw_info_t ART_DI;
}
@end
@implementation ARTGState (PatternColor)
typedef struct _SavedClip {
int clip_x0,clip_y0,clip_x1,clip_y1;
BOOL all_clipped;
int clip_sx,clip_sy;
unsigned int *clip_span;
unsigned int *clip_index;
int clip_num_span;
} SavedClip;
- (void *) saveClip
{
SavedClip *savedClip = malloc(sizeof(SavedClip));
int i;
savedClip->clip_x0 = clip_x0;
savedClip->clip_y0 = clip_y0;
savedClip->clip_x1 = clip_x1;
savedClip->clip_y1 = clip_y1;
savedClip->all_clipped = all_clipped;
savedClip->clip_sx = clip_sx;
savedClip->clip_sy = clip_sy;
if (clip_num_span == 0)
{
savedClip->clip_span = NULL;
savedClip->clip_index = NULL;
}
else
{
savedClip->clip_span = malloc(sizeof(int) * clip_num_span);
savedClip->clip_index = malloc(sizeof(int) * clip_num_span);
for (i = 0; i < clip_num_span; i++)
{
savedClip->clip_span[i] = clip_span[i];
}
for (i = 0; i < clip_num_span; i++)
{
savedClip->clip_index[i] = clip_index[i];
}
}
savedClip->clip_num_span = clip_num_span;
return savedClip;
}
- (void) restoreClip: (void *)saved
{
SavedClip *savedClip = (SavedClip *)saved;
clip_x0 = savedClip->clip_x0;
clip_y0 = savedClip->clip_y0;
clip_x1 = savedClip->clip_x1;
clip_y1 = savedClip->clip_y1;
all_clipped = savedClip->all_clipped;
clip_sx = savedClip->clip_sx;
clip_sy = savedClip->clip_sy;
if (clip_span)
{
free(clip_span);
free(clip_index);
}
clip_span = savedClip->clip_span;
clip_index = savedClip->clip_index;
clip_num_span = savedClip->clip_num_span;
free(savedClip);
}
@end