MadButterfly: src/paint.c annotate

annotate src/paint.c @ 234:889cdc5f23c5

When a scene is selected to0 edit, we copy all of its elements out of the scene so that inkscape can edit it directly. All elements add or delete by the inkspcae will be put back when we switch the scene. The svg2code.py must recognize this structure.

author	wycc
date	Wed, 24 Dec 2008 23:43:39 +0800
parents	530bb7728546
children	29acbd8a0dd0

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);
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 154 diff changeset	26 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	27 }
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28
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	29 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	30 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	31 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	32 paint_color_t *color;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33
146 e96a584487af Use elmpool to manage paint_color_t objects. Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	34 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	35 if(color == NULL)
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	36 return NULL;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	37 color->r = r;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	38 color->g = g;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	39 color->b = b;
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	40 color->a = a;
19 cf6d65398619 More animation demo Thinker K.F. Li <thinker@branda.to> parents: 18 diff changeset	41 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	42 return (paint_t *)color;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	43 }
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 void paint_color_set(paint_t *paint,
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	46 co_comp_t r, co_comp_t g,
83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	47 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	48 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	49
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50 color->r = r;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51 color->g = g;
0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 color->b = b;
21 83d24300a992 opacity (alpha) channel Thinker K.F. Li <thinker@branda.to> parents: 19 diff changeset	53 color->a = a;
18 0f3baa488a62 Support solid color paint for fill. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 }
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	55
52 59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	56 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	57 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	58 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	59 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	60
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	61 *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	62 *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	63 *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	64 *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	65 }
59a295651480 Add action mb_chgcolor_t to change color of paints. Thinker K.F. Li <thinker@branda.to> parents: 23 diff changeset	66
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	67 /*! \brief Linear gradient.
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	68 */
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	69 typedef struct _paint_linear {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	70 paint_t paint;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	71 co_aix x1, y1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	72 co_aix x2, y2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	73 int n_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	74 grad_stop_t *stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	75 int flags;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	76 cairo_pattern_t *ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	77 } paint_linear_t;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	78
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	79 #define LIF_DIRTY 0x1
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	80
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	81 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	82 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	83 cairo_pattern_t *ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	84 grad_stop_t *stop;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	85 int i;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	86
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	87 ptn = linear->ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	88 if(linear->flags & LIF_DIRTY) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	89 if(ptn)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	90 cairo_pattern_destroy(ptn);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	91 linear->flags &= ~LIF_DIRTY;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	92 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	93 linear->x2, linear->y2);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	94 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	95 stop = &linear->stops[i];
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	96 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	97 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	98 stop->a);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	99 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	100 linear->ptn = ptn;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	101 }
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 cairo_set_source(cr, ptn);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	104 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	105
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	106 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	107 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	108
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	109 if(linear->ptn)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	110 cairo_pattern_destroy(linear->ptn);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	111 free(paint);
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	112 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	113
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	114 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	115 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	116 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	117 paint_linear_t *linear;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	118
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	119 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	120 if(linear == NULL)
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	121 return NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	122
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	123 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	124
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	125 linear->x1 = x1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	126 linear->y1 = y1;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	127 linear->x2 = x2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	128 linear->y2 = y2;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	129 linear->n_stops = 0;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	130 linear->stops = NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	131 linear->flags = LIF_DIRTY;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	132 linear->ptn = NULL;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	133
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	134 return (paint_t *)linear;
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
58 1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	137 /*! \brief Setup color stop for a linear radient paint.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	138 *
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	139 * stops should be managed by users of the function. It should be
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	140 * available before the paint being freed or changed to another
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	141 * array of stops.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	142 */
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	143 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	144 int n_stops,
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	145 grad_stop_t *stops) {
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	146 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	147 grad_stop_t *old_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	148
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	149 old_stops = linear->stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	150 linear->n_stops = n_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	151 linear->stops = stops;
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	152 linear->flags \|= LIF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	153
23 56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	154 return old_stops;
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	155 }
56f592f56ff7 Fix bug and add linear gradient paint. Thinker K.F. Li <thinker@branda.to> parents: 21 diff changeset	156
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	157 /*! \brief Radial gradient.
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	158 *
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	159 * NOTE: The only supported gradient unit is userSpaceOnUse.
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 typedef struct _paint_radial {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	162 paint_t paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	163 co_aix cx, cy;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	164 co_aix r;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	165 int n_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	166 grad_stop_t *stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	167 int flags;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	168 cairo_pattern_t *ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	169 } paint_radial_t;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	170
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	171 #define RDF_DIRTY 0x1
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 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	174 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	175 cairo_pattern_t *ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	176 grad_stop_t *stop;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	177 int i;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	178
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	179 if(radial->flags & RDF_DIRTY) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	180 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	181 radial->cx, radial->cy,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	182 radial->r);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	183 ASSERT(ptn != NULL);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	184 stop = radial->stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	185 for(i = 0; i < radial->n_stops; i++, stop++) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	186 cairo_pattern_add_color_stop_rgba(ptn, stop->offset,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	187 stop->r, stop->g,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	188 stop->b, stop->a);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	189 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	190 cairo_pattern_destroy(radial->ptn);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	191 radial->ptn = ptn;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	192 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	193 cairo_set_source(cr, radial->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
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	196 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	197 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	198
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	199 if(radial->ptn)
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	200 cairo_pattern_destroy(radial->ptn);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	201 free(paint);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	202 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	203
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	204 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	205 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	206 paint_radial_t *radial;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	207
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	208 radial = O_ALLOC(paint_radial_t);
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	209 if(radial == NULL)
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	210 return NULL;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	211
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	212 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	213 radial->cx = cx;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	214 radial->cy = cy;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	215 radial->r = r;
56 e444a8c01735 Change interface of paint_radial_new() Thinker K.F. Li <thinker@branda.to> parents: 55 diff changeset	216 radial->n_stops = 0;
e444a8c01735 Change interface of paint_radial_new() Thinker K.F. Li <thinker@branda.to> parents: 55 diff changeset	217 radial->stops = NULL;
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	218 radial->flags = RDF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	219 radial->ptn = NULL;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	220
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	221 return (paint_t *)radial;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	222 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	223
58 1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	224 /*! \brief Setup color stop for a radial radient paint.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	225 *
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	226 * stops should be managed by users of the function. It should be
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	227 * available before the paint being freed or changed to another
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	228 * array of stops.
1ca417f741f1 - Thinker K.F. Li <thinker@branda.to> parents: 56 diff changeset	229 */
55 01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	230 grad_stop_t paint_radial_stops(paint_t paint,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	231 int n_stops,
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	232 grad_stop_t *stops) {
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	233 paint_radial_t radial = (paint_radial_t )paint;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	234 grad_stop_t *old_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	235
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	236 old_stops = radial->stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	237 radial->n_stops = n_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	238 radial->stops = stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	239 radial->flags \|= RDF_DIRTY;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	240
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	241 return old_stops;
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	242 }
01ed2bc37eed Radial gradient paint Thinker K.F. Li <thinker@branda.to> parents: 52 diff changeset	243

Mercurial > MadButterfly

annotate src/paint.c @ 234:889cdc5f23c5