1 #define __NR_ARENA_C__
3 /*
4 * RGBA display list system for inkscape
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 2001-2002 Lauris Kaplinski
10 * Copyright (C) 2001 Ximian, Inc.
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #include "nr-arena-item.h"
16 #include "nr-arena.h"
17 #include <libnr/nr-blit.h>
19 static void nr_arena_class_init (NRArenaClass *klass);
20 static void nr_arena_init (NRArena *arena);
21 static void nr_arena_finalize (NRObject *object);
23 static NRActiveObjectClass *parent_class;
25 NRType
26 nr_arena_get_type (void)
27 {
28 static NRType type = 0;
29 if (!type) {
30 type = nr_object_register_type (NR_TYPE_ACTIVE_OBJECT,
31 "NRArena",
32 sizeof (NRArenaClass),
33 sizeof (NRArena),
34 (void (*) (NRObjectClass *)) nr_arena_class_init,
35 (void (*) (NRObject *)) nr_arena_init);
36 }
37 return type;
38 }
40 static void
41 nr_arena_class_init (NRArenaClass *klass)
42 {
43 NRObjectClass *object_class = (NRObjectClass *) klass;
45 parent_class = (NRActiveObjectClass *) (((NRObjectClass *) klass)->parent);
47 object_class->finalize = nr_arena_finalize;
48 object_class->cpp_ctor = NRObject::invoke_ctor<NRArena>;
49 }
51 static void
52 nr_arena_init (NRArena *arena)
53 {
54 arena->delta = 0; // to be set by desktop from prefs
55 arena->rendermode = Inkscape::RENDERMODE_NORMAL; // default is normal render
56 arena->outlinecolor = 0xff; // black; to be set by desktop from bg color
57 arena->canvasarena = NULL;
58 }
60 static void
61 nr_arena_finalize (NRObject *object)
62 {
63 ((NRObjectClass *) (parent_class))->finalize (object);
64 }
66 void
67 nr_arena_request_update (NRArena *arena, NRArenaItem *item)
68 {
69 NRActiveObject *aobject = (NRActiveObject *) arena;
71 nr_return_if_fail (arena != NULL);
72 nr_return_if_fail (NR_IS_ARENA (arena));
73 nr_return_if_fail (item != NULL);
74 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
76 if (aobject->callbacks) {
77 for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
78 NRObjectListener *listener = aobject->callbacks->listeners + i;
79 NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
80 if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_update) {
81 avector->request_update (arena, item, listener->data);
82 }
83 }
84 }
85 }
87 void
88 nr_arena_request_render_rect (NRArena *arena, NRRectL *area)
89 {
90 NRActiveObject *aobject = (NRActiveObject *) arena;
92 nr_return_if_fail (arena != NULL);
93 nr_return_if_fail (NR_IS_ARENA (arena));
94 nr_return_if_fail (area != NULL);
96 if (aobject->callbacks && area && !nr_rect_l_test_empty (area)) {
97 for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
98 NRObjectListener *listener = aobject->callbacks->listeners + i;
99 NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
100 if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_render) {
101 avector->request_render (arena, area, listener->data);
102 }
103 }
104 }
105 }
107 void
108 nr_arena_render_paintserver_fill (NRPixBlock *pb, NRRectL *area, SPPainter *painter, float opacity, NRPixBlock *mask)
109 {
110 NRPixBlock cb, cb_opa;
111 nr_pixblock_setup_fast (&cb, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
112 nr_pixblock_setup_fast (&cb_opa, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
114 // if memory allocation failed, abort
115 if ((cb.size != NR_PIXBLOCK_SIZE_TINY && cb.data.px == NULL) || (cb_opa.size != NR_PIXBLOCK_SIZE_TINY && cb_opa.data.px == NULL)) {
116 return;
117 }
119 cb.visible_area = pb->visible_area;
120 cb_opa.visible_area = pb->visible_area;
122 /* Need separate gradient buffer (lauris)*/
123 // do the filling
124 painter->fill (painter, &cb);
125 cb.empty = FALSE;
127 // do the fill-opacity and mask composite
128 if (opacity < 1.0) {
129 nr_blit_pixblock_pixblock_alpha (&cb_opa, &cb, (int) floor (255 * opacity));
130 cb_opa.empty = FALSE;
131 nr_blit_pixblock_pixblock_mask (pb, &cb_opa, mask);
132 } else {
133 nr_blit_pixblock_pixblock_mask (pb, &cb, mask);
134 }
136 pb->empty = FALSE;
138 nr_pixblock_release (&cb);
139 nr_pixblock_release (&cb_opa);
140 }
143 /*
144 Local Variables:
145 mode:c++
146 c-file-style:"stroustrup"
147 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
148 indent-tabs-mode:nil
149 fill-column:99
150 End:
151 */
152 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :