MadButterfly: src/paint.c annotate

annotate src/paint.c @ 268:43900cae1d49

Support resizing for image. - Programmers can change size of image that showed on the output device.

author	Thinker K.F. Li <thinker@branda.to>
date	Sat, 24 Jan 2009 18:19:02 +0800
parents	b42ee279669e
children	04d22dc38bc0

rev	line source
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 #include <stdio.h>
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 #include <stdlib.h>
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	3 #include <cairo.h>
186 530bb7728546 Move header files to $(top_srcdir)/include/ and prefixed with 'mb_'. Thinker K.F. Li <thinker@branda.to> parents: 185 diff changeset	4 #include "mb_paint.h"
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	6 #define ASSERT(x)
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	7
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	8 /*! \brief Solid color paint.
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	9 */
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	10 typedef struct _paint_color {
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11 paint_t paint;
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	12 co_comp_t r, g, b, a;
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13 } paint_color_t;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	14
147 995ee8fd5f1a Use local static variable to hold position array to reduce using malloc(). Thinker K.F. Li <thinker@branda.to> parents: 146 diff changeset	15 int _paint_color_size = sizeof(paint_color_t);
146 e96a584487af Use elmpool to manage paint_color_t objects. Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	16
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	17
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	18 static void paint_color_prepare(paint_t paint, cairo_t cr) {
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	19 paint_color_t color = (paint_color_t )paint;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	20
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	21 cairo_set_source_rgba(cr, color->r, color->g, color->b, color->a);
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	22 }
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	23
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	24 static void paint_color_free(redraw_man_t rdman, paint_t paint) {
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	25 shnode_list_free(rdman, paint->members);
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	26 paint_destroy(paint);
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	27 elmpool_elm_free(rdman->paint_color_pool, paint);
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28 }
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	29
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	30 paint_t rdman_paint_color_new(redraw_man_t rdman,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	31 co_comp_t r, co_comp_t g,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	32 co_comp_t b, co_comp_t a) {
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33 paint_color_t *color;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	34
146 e96a584487af Use elmpool to manage paint_color_t objects. Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	35 color = (paint_color_t *)elmpool_elm_alloc(rdman->paint_color_pool);
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	36 if(color == NULL)
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	37 return NULL;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	38 color->r = r;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	39 color->g = g;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	40 color->b = b;
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	41 color->a = a;
19 cf6d65398619 More animation demo Thinker K.F. Li <thinker@branda.to> parents: 18 diff changeset	42 paint_init(&color->paint, paint_color_prepare, paint_color_free);
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	43 return (paint_t *)color;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44 }
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	45
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	46 void paint_color_set(paint_t *paint,
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	47 co_comp_t r, co_comp_t g,
83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	48 co_comp_t b, co_comp_t a) {
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49 paint_color_t color = (paint_color_t )paint;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51 color->r = r;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 color->g = g;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53 color->b = b;
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	54 color->a = a;
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 }
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	56
52 59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	57 void paint_color_get(paint_t *paint,
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	58 co_comp_t r, co_comp_t g,
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	59 co_comp_t b, co_comp_t a) {
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	60 paint_color_t color = (paint_color_t )paint;
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	61
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	62 *r = color->r;
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	63 *g = color->g;
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	64 *b = color->b;
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	65 *a = color->a;
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	66 }
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	67
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	68 /*! \brief Linear gradient.
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	69 */
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	70 typedef struct _paint_linear {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	71 paint_t paint;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	72 co_aix x1, y1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	73 co_aix x2, y2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	74 int n_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	75 grad_stop_t *stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	76 int flags;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	77 cairo_pattern_t *ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	78 } paint_linear_t;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	79
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	80 #define LIF_DIRTY 0x1
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	81
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	82 static void paint_linear_prepare(paint_t paint, cairo_t cr) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	83 paint_linear_t linear = (paint_linear_t )paint;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	84 cairo_pattern_t *ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	85 grad_stop_t *stop;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	86 int i;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	87
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	88 ptn = linear->ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	89 if(linear->flags & LIF_DIRTY) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	90 if(ptn)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	91 cairo_pattern_destroy(ptn);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	92 linear->flags &= ~LIF_DIRTY;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	93 ptn = cairo_pattern_create_linear(linear->x1, linear->y1,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	94 linear->x2, linear->y2);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	95 for(i = 0; i < linear->n_stops; i++) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	96 stop = &linear->stops[i];
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	97 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	98 stop->r, stop->g, stop->b,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	99 stop->a);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	100 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	101 linear->ptn = ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	102 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	103
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	104 cairo_set_source(cr, ptn);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	105 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	106
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	107 static void paint_linear_free(redraw_man_t rdman, paint_t paint) {
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	108 paint_linear_t linear = (paint_linear_t )paint;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	109
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	110 if(linear->ptn)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	111 cairo_pattern_destroy(linear->ptn);
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	112 paint_destroy(paint);
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	113 free(paint);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	114 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	115
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	116 paint_t rdman_paint_linear_new(redraw_man_t rdman,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	117 co_aix x1, co_aix y1,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	118 co_aix x2, co_aix y2) {
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	119 paint_linear_t *linear;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	120
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	121 linear = (paint_linear_t *)malloc(sizeof(paint_linear_t));
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	122 if(linear == NULL)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	123 return NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	124
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	125 paint_init(&linear->paint, paint_linear_prepare, paint_linear_free);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	126
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	127 linear->x1 = x1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	128 linear->y1 = y1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	129 linear->x2 = x2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	130 linear->y2 = y2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	131 linear->n_stops = 0;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	132 linear->stops = NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	133 linear->flags = LIF_DIRTY;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	134 linear->ptn = NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	135
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	136 return (paint_t *)linear;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	137 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	138
58 1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	139 /*! \brief Setup color stop for a linear radient paint.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	140 *
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	141 * stops should be managed by users of the function. It should be
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	142 * available before the paint being freed or changed to another
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	143 * array of stops.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	144 */
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	145 grad_stop_t paint_linear_stops(paint_t paint,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	146 int n_stops,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	147 grad_stop_t *stops) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	148 paint_linear_t linear = (paint_linear_t )paint;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	149 grad_stop_t *old_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	150
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	151 old_stops = linear->stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	152 linear->n_stops = n_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	153 linear->stops = stops;
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	154 linear->flags \|= LIF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	155
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	156 return old_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	157 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	158
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	159 /*! \brief Radial gradient.
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	160 *
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	161 * NOTE: The only supported gradient unit is userSpaceOnUse.
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	162 */
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	163 typedef struct _paint_radial {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	164 paint_t paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	165 co_aix cx, cy;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	166 co_aix r;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	167 int n_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	168 grad_stop_t *stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	169 int flags;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	170 cairo_pattern_t *ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	171 } paint_radial_t;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	172
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	173 #define RDF_DIRTY 0x1
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	174
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	175 static void paint_radial_prepare(paint_t paint, cairo_t cr) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	176 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	177 cairo_pattern_t *ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	178 grad_stop_t *stop;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	179 int i;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	180
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	181 if(radial->flags & RDF_DIRTY) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	182 ptn = cairo_pattern_create_radial(radial->cx, radial->cy, 0,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	183 radial->cx, radial->cy,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	184 radial->r);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	185 ASSERT(ptn != NULL);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	186 stop = radial->stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	187 for(i = 0; i < radial->n_stops; i++, stop++) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	188 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	189 stop->r, stop->g,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	190 stop->b, stop->a);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	191 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	192 cairo_pattern_destroy(radial->ptn);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	193 radial->ptn = ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	194 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	195 cairo_set_source(cr, radial->ptn);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	196 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	197
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	198 static void paint_radial_free(redraw_man_t rdman, paint_t paint) {
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	199 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	200
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	201 if(radial->ptn)
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	202 cairo_pattern_destroy(radial->ptn);
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	203 paint_destroy(paint);
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	204 free(paint);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	205 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	206
159 b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	207 paint_t rdman_paint_radial_new(redraw_man_t rdman,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	208 co_aix cx, co_aix cy, co_aix r) {
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	209 paint_radial_t *radial;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	210
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	211 radial = O_ALLOC(paint_radial_t);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	212 if(radial == NULL)
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	213 return NULL;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	214
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	215 paint_init(&radial->paint, paint_radial_prepare, paint_radial_free);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	216 radial->cx = cx;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	217 radial->cy = cy;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	218 radial->r = r;
56 e444a8c01735 Change interface of paint_radial_new() Thinker K.F. Li <thinker@branda.to> parents: 55 diff changeset	219 radial->n_stops = 0;
e444a8c01735 Change interface of paint_radial_new() Thinker K.F. Li <thinker@branda.to> parents: 55 diff changeset	220 radial->stops = NULL;
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	221 radial->flags = RDF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	222 radial->ptn = NULL;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	223
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	224 return (paint_t *)radial;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	225 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	226
58 1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	227 /*! \brief Setup color stop for a radial radient paint.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	228 *
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	229 * stops should be managed by users of the function. It should be
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	230 * available before the paint being freed or changed to another
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	231 * array of stops.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	232 */
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	233 grad_stop_t paint_radial_stops(paint_t paint,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	234 int n_stops,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	235 grad_stop_t *stops) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	236 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	237 grad_stop_t *old_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	238
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	239 old_stops = radial->stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	240 radial->n_stops = n_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	241 radial->stops = stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	242 radial->flags \|= RDF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	243
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	244 return old_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	245 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	246
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	247
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	248 /*! \brief Using an image as a paint.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	249 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	250 * This type of paints fill/stroke shapes with an image.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	251 */
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	252 typedef struct _paint_image {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	253 paint_t paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	254 mb_img_data_t *img;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	255 cairo_surface_t *surf;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	256 cairo_pattern_t *ptn;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	257 } paint_image_t;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	258
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	259 static
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	260 void paint_image_prepare(paint_t paint, cairo_t cr) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	261 paint_image_t paint_img = (paint_image_t )paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	262 mb_img_data_t *img_data;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	263
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	264 img_data = paint_img->img;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	265 cairo_set_source(cr, paint_img->ptn);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	266 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	267
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	268 static
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	269 void paint_image_free(redraw_man_t rdman, paint_t paint) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	270 paint_image_t paint_img = (paint_image_t )paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	271 mb_img_data_t *img_data;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	272
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	273 cairo_surface_destroy(paint_img->surf);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	274 img_data = paint_img->img;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	275 MB_IMG_DATA_FREE(img_data);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	276 paint_destroy(&paint_img->paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	277 free(paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	278 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	279
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	280 /*! \brief Create an image painter.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	281 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	282 * Create a painter that fill/stroke shapes with an image.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	283 */
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	284 paint_t rdman_paint_image_new(redraw_man_t rdman,
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	285 mb_img_data_t *img) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	286 paint_image_t *paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	287 int fmt;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	288
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	289 switch(img->fmt) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	290 case MB_IFMT_ARGB32:
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	291 fmt = CAIRO_FORMAT_ARGB32;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	292 break;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	293 case MB_IFMT_RGB24:
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	294 fmt = CAIRO_FORMAT_RGB24;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	295 break;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	296 case MB_IFMT_A8:
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	297 fmt = CAIRO_FORMAT_A8;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	298 break;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	299 case MB_IFMT_A1:
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	300 fmt = CAIRO_FORMAT_A1;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	301 break;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	302 default:
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	303 return NULL;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	304 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	305
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	306 paint = O_ALLOC(paint_image_t);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	307 if(paint == NULL)
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	308 return NULL;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	309
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	310 paint_init(&paint->paint, paint_image_prepare, paint_image_free);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	311 paint->img = img;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	312 paint->surf = cairo_image_surface_create_for_data(img->content,
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	313 fmt,
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 265 diff changeset	314 img->w,
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 265 diff changeset	315 img->h,
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	316 img->stride);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	317 if(paint->surf == NULL) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	318 paint_destroy(&paint->paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	319 free(paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	320 return NULL;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	321 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	322
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	323 paint->ptn = cairo_pattern_create_for_surface(paint->surf);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	324 if(paint->ptn == NULL) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	325 paint_destroy(&paint->paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	326 cairo_surface_destroy(paint->surf);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	327 free(paint);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	328 return NULL;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	329 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	330
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	331 return (paint_t *)paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	332 }
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	333
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	334 /*! \brief Setting transformation from user space to image space.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	335 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	336 * This transformation matrix maps points drawed in user space to
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	337 * corresponding points in image space. It is used to resample
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	338 * the image to generate pixels of result image.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	339 */
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	340 void paint_image_set_matrix(paint_t *paint, co_aix matrix[6]) {
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	341 paint_image_t img_paint = (paint_image_t )paint;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	342 cairo_matrix_t cmatrix;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	343
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	344 cmatrix.xx = matrix[0];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	345 cmatrix.xy = matrix[1];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	346 cmatrix.x0 = matrix[2];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	347 cmatrix.yx = matrix[3];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	348 cmatrix.yy = matrix[4];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	349 cmatrix.y0 = matrix[5];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	350 cairo_pattern_set_matrix(img_paint->ptn, &cmatrix);
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 186 diff changeset	351 }

Mercurial > MadButterfly

annotate src/paint.c @ 268:43900cae1d49