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common/graphic-helpers: add a few cairo pattern helpers

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John Lindgren 2025-05-29 12:31:41 -04:00
parent ee6f9a6baa
commit 3ca7adace0
2 changed files with 61 additions and 0 deletions
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13
include/common/graphic-helpers.h
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@ -12,6 +12,19 @@ struct wlr_fbox;
*/
void set_cairo_color(cairo_t *cairo, const float *color);
/* Creates a solid color cairo pattern from premultipled RGBA */
cairo_pattern_t *color_to_pattern(const float *color);
bool is_pattern_opaque(cairo_pattern_t *pattern);
/* Like zfree() but for a cairo_pattern_t */
#define zfree_pattern(ptr) do { \
if (ptr) { \
cairo_pattern_destroy(ptr); \
(ptr) = NULL; \
} \
} while (0)
/* Draws a border with a specified line width */
void draw_cairo_border(cairo_t *cairo, struct wlr_fbox fbox, double line_width);