MadButterfly: src/graph_engine

annotate src/graph_engine_cairo.c @ 1395:a768d74e5f49

Fix the svg:use. For a svg:use, it is a group which include the content it reference. It means that we can not tween it to its origin object directly. Instead, we need to ungroup it and then use the result matrix to generate the tweened transformation matrix. Therefore, we need to concate its matrix to the referenced object. Ad center object when the bbox-x is not available.

author	wycc
date	Sat, 02 Apr 2011 05:36:36 +0800
parents	851a062368bd
children

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
1110 851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	3 #include <X11/Xlib.h>
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	4 #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	5 #include <cairo-ft.h>
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	6 #include "mb_graph_engine_cairo.h"
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	7 #include "mb_shapes.h"
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	8
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	9 #ifndef ASSERT
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	10 #define ASSERT(x)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11 #endif
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	12
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13 /*! \brief Find out a font pattern.
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	14 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	15 * 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	16 * 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	17 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	18 * \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	19 * \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	20 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	21 static
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	22 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	23 FcPattern ptn, fn_ptn;
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	24 FcValue val;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	25 FcConfig *cfg;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	26 FcBool r;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	27 FcResult result;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28 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	29 FC_SLANT_ROMAN,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	30 FC_SLANT_ROMAN,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	31 FC_SLANT_ITALIC,
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	32 FC_SLANT_OBLIQUE};
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	34 cfg = FcConfigGetCurrent();
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	35 ptn = FcPatternCreate();
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	36 if(ptn == NULL)
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	37 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	38
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	39 val.type = FcTypeString;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	40 val.u.s = family;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	41 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	42
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	43 val.type = FcTypeInteger;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44 val.u.i = slant_map[slant];
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	45 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	46
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	47 val.type = FcTypeInteger;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48 val.u.i = weight;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49 FcPatternAdd(ptn, "weight", val, FcTrue);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	51 FcDefaultSubstitute(ptn);
74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	52
74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	53 r = FcConfigSubstituteWithPat(cfg, ptn, ptn, FcMatchPattern);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 if(!r)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 goto err;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	56
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	57 r = FcConfigSubstituteWithPat(cfg, ptn, ptn, FcMatchFont);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 if(!r)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	59 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	60
901 74e3ba4d3fa1 Fix issue of unworking text style. Thinker K.F. Li <thinker@codemud.net> parents: 822 diff changeset	61 fn_ptn = FcFontMatch(cfg, ptn, &result);
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	63 /* 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	64 * 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	65 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	66 #if 0
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	67 if(result != FcResultMatch) {
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	68 printf("%d %d\n", result, FcResultMatch);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	69 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	70 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	71 #endif
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	72 if(fn_ptn == NULL)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	73 goto err;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	74
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	75 FcPatternDestroy(ptn);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	76
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	77 return fn_ptn;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	78
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	79 err:
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	80 if(ptn)
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	81 FcPatternDestroy(ptn);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	82 return NULL;
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
1110 851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	86 extern mbe_surface_t *
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	87 mbe_win_surface_create(void display, void drawable,
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	88 int fmt, int width, int height) {
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	89 XWindowAttributes attrs;
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	90 mbe_surface_t *surf;
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	91 int r;
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	92
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	93 r = XGetWindowAttributes((Display *)display, (Drawable)drawable, &attrs);
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	94 if(r == 0)
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	95 return NULL;
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	96
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	97 surf = cairo_xlib_surface_create((Display *)display, (Drawable)drawable,
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	98 attrs.visual, width, height);
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	99
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	100 return surf;
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	101 }
851a062368bd Change signature of mbe_win_surface_create() by using format argument Thinker K.F. Li <thinker@codemud.net> parents: 1101 diff changeset	102
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	103 /*! \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	104 *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	105 * 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	106 * 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	107 * 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	108 */
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	109 mbe_font_face_t *
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	110 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	111 mbe_font_face_t *cface;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	112 FcPattern *ptn;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	113
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	114 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	115 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	116 FcPatternDestroy(ptn);
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	117
465 d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	118 return cface;
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	119 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	120
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	121 void
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	122 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	123 ASSERT(face == NULL);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	124
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	125 mbe_font_face_destroy(face);
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	126 }
d8181696b689 Move functions into graphic engine layers. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	127
480 e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	128 mbe_pattern_t *
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	129 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	130 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	131 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	132 cairo_pattern_t *ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	133 grad_stop_t *stop;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	134 int i;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	135
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	136 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	137 cx1, cy1, radius1);
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	138 if(ptn == NULL)
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	139 return NULL;
822 586e50f82c1f Unify coding style tag for emacs and vim. Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> parents: 480 diff changeset	140
480 e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	141 stop = stops;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	142 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	143 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	144 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	145 stop++;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	146 }
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	147
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	148 return ptn;
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 mbe_pattern_t *
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	152 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	153 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	154 cairo_pattern_t *ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	155 grad_stop_t *stop;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	156 int i;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	157
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	158 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	159 if(ptn == NULL)
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	160 return NULL;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	161
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	162 stop = stops;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	163 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	164 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	165 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	166 stop++;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	167 }
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	168
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	169 return ptn;
e813ac222f48 Merge add colors into constructor of gradient pattern. Thinker K.F. Li <thinker@branda.to> parents: 469 diff changeset	170 }
1073 d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	171
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	172 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	173 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	174 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	175 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	176 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	177
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	178 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	179 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	180 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	181 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	182
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	183 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	184 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	185 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	186
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	187 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	188 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	189 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	190
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	191 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	192 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	193 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	194
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	195 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	196 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	197 break;
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	198
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	199 default:
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	200 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	201 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	202
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	203 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	204 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	205 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	206 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	207
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	208 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	209 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	210
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	211 void
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	212 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	213 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	214 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	215
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	216 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	217
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	218 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	219 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	220 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	221 }
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	222
d09f603438d8 Merge the work of improvement for graphic engine of openvg branch Thinker K.F. Li <thinker@codemud.net> parents: 1067 diff changeset	223 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	224 }
1101 e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	225
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	226 void
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	227 mbe_copy_source(mbe_t src, mbe_t dst) {
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	228 cairo_operator_t saved_op;
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	229 cairo_surface_t *surf;
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	230 cairo_pattern_t *ptn;
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	231
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	232 surf = cairo_get_target(src);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	233 ptn = cairo_pattern_create_for_surface(surf);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	234 cairo_set_source(dst, ptn);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	235 cairo_pattern_destroy(ptn);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	236 saved_op = cairo_get_operator(dst);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	237 cairo_set_operator(dst, CAIRO_OPERATOR_SOURCE);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	238 cairo_paint(dst);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	239 cairo_set_operator(dst, saved_op);
e1a76d10953e Fix black window output for Cairo graphic engine. Thinker K.F. Li <thinker@codemud.net> parents: 1073 diff changeset	240 }

Mercurial > MadButterfly

annotate src/graph_engine_cairo.c @ 1395:a768d74e5f49