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comparison src/graph_engine_cairo.c @ 480:e813ac222f48 Android_Skia

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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
comparison
equal deleted inserted replaced
479:9a867333018b 480:e813ac222f48
1 #include <fontconfig/fontconfig.h> 1 #include <fontconfig/fontconfig.h>
2 #include <cairo-ft.h>
2 #include "mb_graph_engine_cairo.h" 3 #include "mb_graph_engine_cairo.h"
3 #include "mb_shapes.h" 4 #include "mb_shapes.h"
4 5
5 #ifndef ASSERT 6 #ifndef ASSERT
6 #define ASSERT(x) 7 #define ASSERT(x)
106 ASSERT(face == NULL); 107 ASSERT(face == NULL);
107 108
108 mbe_font_face_destroy(face); 109 mbe_font_face_destroy(face);
109 } 110 }
110 111
112 mbe_pattern_t *
113 mbe_pattern_create_radial(co_aix cx0, co_aix cy0, co_aix radius0,
114 co_aix cx1, co_aix cy1, co_aix radius1,
115 grad_stop_t *stops, int stop_cnt) {
116 cairo_pattern_t *ptn;
117 grad_stop_t *stop;
118 int i;
119
120 ptn = cairo_pattern_create_radial(cx0, cy0, radius0,
121 cx1, cy1, radius1);
122 if(ptn == NULL)
123 return NULL;
124
125 stop = stops;
126 for(i = 0; i < stop_cnt; i++) {
127 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
128 stop->r, stop->g, stop->b, stop->a);
129 stop++;
130 }
131
132 return ptn;
133 }
134
135 mbe_pattern_t *
136 mbe_pattern_create_linear(co_aix x0, co_aix y0, co_aix x1, co_aix y1,
137 grad_stop_t *stops, int stop_cnt) {
138 cairo_pattern_t *ptn;
139 grad_stop_t *stop;
140 int i;
141
142 ptn = cairo_pattern_create_linear(x0, y0, x1, y1);
143 if(ptn == NULL)
144 return NULL;
145
146 stop = stops;
147 for(i = 0; i < stop_cnt; i++) {
148 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
149 stop->r, stop->g, stop->b, stop->a);
150 stop++;
151 }
152
153 return ptn;
154 }