MadButterfly: src/graph_engine

annotate src/graph_engine_cairo.c @ 1099:5ba2cab1d505

Add name editor to edit the inkscape:label withgout using the object property editor. This is more Flash-like operation.

author	wycc
date	Sun, 05 Dec 2010 08:16:54 +0800
parents	d09f603438d8
children	e1a76d10953e

rev	line source
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	1 // -- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; --
586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	2 // vim: sw=4:ts=8:sts=4
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	3 #include <fontconfig/fontconfig.h>
480 e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	4 #include <cairo-ft.h>
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5 #include "mb_graph_engine_cairo.h"
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	6 #include "mb_shapes.h"
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	7
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	8 #ifndef ASSERT
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	9 #define ASSERT(x)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	10 #endif
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	12 /*! \brief Find out a font pattern.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	14 * This function use fontconfig to decide a font file in pattern. It can
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	15 * replaced by other mechanism if you think it is not what you want.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	16 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	17 * \param slant make font prune if it it non-zero.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	18 * \param weight make font normal if it is 100.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	19 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	20 static
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	21 FcPattern query_font_pattern(const char family, int slant, int weight) {
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	22 FcPattern ptn, fn_ptn;
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	23 FcValue val;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	24 FcConfig *cfg;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	25 FcBool r;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	26 FcResult result;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	27 static int slant_map[] = { /* from MB_FONT_SLANT_* to FC_SLANT_* */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28 FC_SLANT_ROMAN,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	29 FC_SLANT_ROMAN,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	30 FC_SLANT_ITALIC,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	31 FC_SLANT_OBLIQUE};
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	32
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33 cfg = FcConfigGetCurrent();
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	34 ptn = FcPatternCreate();
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	35 if(ptn == NULL)
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	36 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	37
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	38 val.type = FcTypeString;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	39 val.u.s = family;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	40 FcPatternAdd(ptn, "family", val, FcTrue);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	41
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	42 val.type = FcTypeInteger;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	43 val.u.i = slant_map[slant];
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44 FcPatternAdd(ptn, "slant", val, FcTrue);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	45
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	46 val.type = FcTypeInteger;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	47 val.u.i = weight;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48 FcPatternAdd(ptn, "weight", val, FcTrue);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	50 FcDefaultSubstitute(ptn);
74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	51
74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	52 r = FcConfigSubstituteWithPat(cfg, ptn, ptn, FcMatchPattern);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53 if(!r)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 goto err;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	55
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	56 r = FcConfigSubstituteWithPat(cfg, ptn, ptn, FcMatchFont);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	57 if(!r)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	59
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	60 fn_ptn = FcFontMatch(cfg, ptn, &result);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	61
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62 /* It is supposed to return FcResultMatch. But, it is no, now.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	63 * I don't know why. Someone should figure out the issue.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	64 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	65 #if 0
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	66 if(result != FcResultMatch) {
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	67 printf("%d %d\n", result, FcResultMatch);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	68 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	69 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	70 #endif
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	71 if(fn_ptn == NULL)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	72 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	73
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	74 FcPatternDestroy(ptn);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	75
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	76 return fn_ptn;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	77
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	78 err:
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	79 if(ptn)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	80 FcPatternDestroy(ptn);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	81 return NULL;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	82
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	83 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	84
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	85 /*! \brief Find out a font face for a pattern specified.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	86 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	87 * The pattern, here, is a vector of family, slant, and weight.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	88 * This function base on fontconfig and cairo FreeType font supporting.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	89 * You can replace this function with other font mechanisms.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	90 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	91 mbe_font_face_t *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	92 mbe_query_font_face(const char *family, int slant, int weight) {
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	93 mbe_font_face_t *cface;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	94 FcPattern *ptn;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	95
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	96 ptn = query_font_pattern(family, slant, weight);
469 4dc0be6c044a Add copy and clear graphic engine functions. Thinker K.F. Li <thinker@branda.to> parents: 465 diff changeset	97 cface = cairo_ft_font_face_create_for_pattern(ptn);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	98 FcPatternDestroy(ptn);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	99
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	100 return cface;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	101 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	102
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	103 void
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	104 mbe_free_font_face(mbe_font_face_t *face) {
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	105 ASSERT(face == NULL);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	106
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	107 mbe_font_face_destroy(face);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	108 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	109
480 e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	110 mbe_pattern_t *
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	111 mbe_pattern_create_radial(co_aix cx0, co_aix cy0, co_aix radius0,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	112 co_aix cx1, co_aix cy1, co_aix radius1,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	113 grad_stop_t *stops, int stop_cnt) {
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	114 cairo_pattern_t *ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	115 grad_stop_t *stop;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	116 int i;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	117
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	118 ptn = cairo_pattern_create_radial(cx0, cy0, radius0,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	119 cx1, cy1, radius1);
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	120 if(ptn == NULL)
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	121 return NULL;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	122
480 e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	123 stop = stops;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	124 for(i = 0; i < stop_cnt; i++) {
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	125 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	126 stop->r, stop->g, stop->b, stop->a);
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	127 stop++;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	128 }
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	129
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	130 return ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	131 }
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	132
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	133 mbe_pattern_t *
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	134 mbe_pattern_create_linear(co_aix x0, co_aix y0, co_aix x1, co_aix y1,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	135 grad_stop_t *stops, int stop_cnt) {
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	136 cairo_pattern_t *ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	137 grad_stop_t *stop;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	138 int i;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	139
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	140 ptn = cairo_pattern_create_linear(x0, y0, x1, y1);
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	141 if(ptn == NULL)
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	142 return NULL;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	143
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	144 stop = stops;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	145 for(i = 0; i < stop_cnt; i++) {
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	146 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	147 stop->r, stop->g, stop->b, stop->a);
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	148 stop++;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	149 }
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	150
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	151 return ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	152 }
1073 d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	153
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	154 mbe_pattern_t *
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	155 mbe_pattern_create_image(mb_img_data_t *img) {
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	156 cairo_surface_t *surf;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	157 cairo_pattern_t *ptn;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	158 cairo_format_t fmt;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	159
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	160 switch(img->fmt) {
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	161 case MB_IFMT_ARGB32:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	162 fmt = CAIRO_FORMAT_ARGB32;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	163 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	164
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	165 case MB_IFMT_RGB24:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	166 fmt = CAIRO_FORMAT_RGB24;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	167 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	168
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	169 case MB_IFMT_A8:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	170 fmt = CAIRO_FORMAT_A8;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	171 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	172
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	173 case MB_IFMT_A1:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	174 fmt = CAIRO_FORMAT_A1;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	175 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	176
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	177 case MB_IFMT_RGB16_565:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	178 fmt = CAIRO_FORMAT_RGB16_565;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	179 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	180
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	181 default:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	182 return NULL;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	183 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	184
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	185 surf = cairo_image_surface_create_for_data(img->content, fmt,
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	186 img->w, img->h, img->stride);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	187 ptn = cairo_pattern_create_for_surface(surf);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	188 cairo_surface_destroy(surf);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	189
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	190 return ptn;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	191 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	192
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	193 void
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	194 mbe_scissoring(mbe_t canvas, int n_areas, area_t *areas) {
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	195 area_t *area;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	196 int i;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	197
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	198 cairo_new_path(canvas);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	199
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	200 for(i = 0; i < n_areas; i++) {
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	201 area = areas[i];
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	202 cairo_rectangle(canvas, area->x, area->y, area->w, area->h);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	203 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	204
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	205 cairo_clip(canvas);
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	206 }

Mercurial > MadButterfly

annotate src/graph_engine_cairo.c @ 1099:5ba2cab1d505