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pattern: improve single stop gradients handling

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None-extended single stop gradients are now explicitly made clear.
This commit is contained in:
Andrea Canciani 2010-06-09 16:59:29 +02:00
parent 7a024bc206
commit e2660a0eac
1 changed files with 8 additions and 1 deletions
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9
src/cairo-pattern.c
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@ -1767,6 +1767,11 @@ _gradient_is_clear (const cairo_gradient_pattern_t *gradient,
assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR ||
gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL);
if (gradient->n_stops == 0 ||
(gradient->base.extend == CAIRO_EXTEND_NONE &&
gradient->stops[0].offset == gradient->stops[gradient->n_stops - 1].offset))
return TRUE;
/* Check if the extents intersect the drawn part of the pattern. */
if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) {
if (gradient->base.extend == CAIRO_EXTEND_NONE) {
@ -1928,7 +1933,9 @@ _gradient_is_opaque (const cairo_gradient_pattern_t *gradient,
assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR ||
gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL);
if (gradient->n_stops == 0)
if (gradient->n_stops == 0 ||
(gradient->base.extend == CAIRO_EXTEND_NONE &&
gradient->stops[0].offset == gradient->stops[gradient->n_stops - 1].offset))
return FALSE;
if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) {