Mercurial > MadButterfly
diff src/graph_engine_cairo.c @ 480:e813ac222f48 Android_Skia
Merge add colors into constructor of gradient pattern.
Since we also define color stops for gradient pattern and rear change
it, mbe_pattern_add_color_stop_rgba() is merged into
mb_pattern_create_radial() and mb_pattern_create_linear(). It also
makes porting to graphic engines easier.
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Sun, 15 Nov 2009 16:21:09 +0800 |
| parents | 4dc0be6c044a |
| children | b42d69ab8857 586e50f82c1f |
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--- a/src/graph_engine_cairo.c Sun Nov 15 16:21:09 2009 +0800 +++ b/src/graph_engine_cairo.c Sun Nov 15 16:21:09 2009 +0800 @@ -1,4 +1,5 @@ #include <fontconfig/fontconfig.h> +#include <cairo-ft.h> #include "mb_graph_engine_cairo.h" #include "mb_shapes.h" @@ -108,3 +109,46 @@ mbe_font_face_destroy(face); } +mbe_pattern_t * +mbe_pattern_create_radial(co_aix cx0, co_aix cy0, co_aix radius0, + co_aix cx1, co_aix cy1, co_aix radius1, + grad_stop_t *stops, int stop_cnt) { + cairo_pattern_t *ptn; + grad_stop_t *stop; + int i; + + ptn = cairo_pattern_create_radial(cx0, cy0, radius0, + cx1, cy1, radius1); + if(ptn == NULL) + return NULL; + + stop = stops; + for(i = 0; i < stop_cnt; i++) { + cairo_pattern_add_color_stop_rgba(ptn, stop->offset, + stop->r, stop->g, stop->b, stop->a); + stop++; + } + + return ptn; +} + +mbe_pattern_t * +mbe_pattern_create_linear(co_aix x0, co_aix y0, co_aix x1, co_aix y1, + grad_stop_t *stops, int stop_cnt) { + cairo_pattern_t *ptn; + grad_stop_t *stop; + int i; + + ptn = cairo_pattern_create_linear(x0, y0, x1, y1); + if(ptn == NULL) + return NULL; + + stop = stops; + for(i = 0; i < stop_cnt; i++) { + cairo_pattern_add_color_stop_rgba(ptn, stop->offset, + stop->r, stop->g, stop->b, stop->a); + stop++; + } + + return ptn; +}