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annotate src/paint.h @ 123:9e2316dc6ecb

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Program completion events
author Thinker K.F. Li <thinker@branda.to>
date Tue, 16 Sep 2008 14:19:26 +0800
parents e444a8c01735
children b90abd31a281
rev   line source
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0f3baa488a62 Support solid color paint for fill.
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1 #ifndef __PAINT_H_
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2 #define __PAINT_H_
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3
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4 #include <cairo.h>
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5 #include "mb_types.h"
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6 #include "redraw_man.h"
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7 #include "tools.h"
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8
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9 typedef float co_comp_t;
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10
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11 extern paint_t *paint_color_new(redraw_man_t *rdman,
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83d24300a992 opacity (alpha) channel
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12 co_comp_t r, co_comp_t g,
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13 co_comp_t b, co_comp_t a);
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14 extern void paint_color_set(paint_t *paint,
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15 co_comp_t r, co_comp_t g,
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16 co_comp_t b, co_comp_t a);
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17 extern void paint_color_get(paint_t *paint,
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18 co_comp_t *r, co_comp_t *g,
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19 co_comp_t *b, co_comp_t *a);
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20 #define paint_init(_paint, _prepare, _free) \
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21 do { \
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22 (_paint)->prepare = _prepare; \
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23 (_paint)->free = _free; \
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24 STAILQ_INIT((_paint)->members); \
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25 } while(0) \
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27
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28 typedef struct _grad_stop {
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29 co_aix offset;
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30 co_comp_t r, g, b, a;
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31 } grad_stop_t;
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32
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33 extern paint_t *paint_linear_new(redraw_man_t *rdman,
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34 co_aix x1, co_aix y1, co_aix x2, co_aix y2);
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35 extern grad_stop_t *paint_linear_stops(paint_t *paint,
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36 int n_stops,
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37 grad_stop_t *stops);
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38 extern paint_t *paint_radial_new(redraw_man_t *rdman,
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39 co_aix cx, co_aix cy, co_aix r);
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40 extern grad_stop_t *paint_radial_stops(paint_t *paint,
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41 int n_stops,
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42 grad_stop_t *stops);
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43
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44 #define grad_stop_init(stop, _offset, _r, _g, _b, _a) \
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45 do { \
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46 (stop)->offset = _offset; \
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47 (stop)->r = _r; \
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48 (stop)->g = _g; \
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49 (stop)->b = _b; \
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50 (stop)->a = _a; \
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51 } while(0)
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53
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54 #endif /* __PAINT_H_ */