14488b7fb52466938cab10610eef1cbfbb013cd8
1 #define __SP_FEFLOOD_CPP__
3 /** \file
4 * SVG <feFlood> implementation.
5 *
6 */
7 /*
8 * Authors:
9 * hugo Rodrigues <haa.rodrigues@gmail.com>
10 *
11 * Copyright (C) 2006 Hugo Rodrigues
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #ifdef HAVE_CONFIG_H
17 # include "config.h"
18 #endif
20 #include "attributes.h"
21 #include "svg/svg.h"
22 #include "sp-feflood.h"
23 #include "xml/repr.h"
24 #include "helper-fns.h"
25 #include "svg/svg-color.h"
27 /* FeFlood base class */
29 static void sp_feFlood_class_init(SPFeFloodClass *klass);
30 static void sp_feFlood_init(SPFeFlood *feFlood);
32 static void sp_feFlood_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
33 static void sp_feFlood_release(SPObject *object);
34 static void sp_feFlood_set(SPObject *object, unsigned int key, gchar const *value);
35 static void sp_feFlood_update(SPObject *object, SPCtx *ctx, guint flags);
36 static Inkscape::XML::Node *sp_feFlood_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
37 static void sp_feFlood_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
39 static SPFilterPrimitiveClass *feFlood_parent_class;
41 GType
42 sp_feFlood_get_type()
43 {
44 static GType feFlood_type = 0;
46 if (!feFlood_type) {
47 GTypeInfo feFlood_info = {
48 sizeof(SPFeFloodClass),
49 NULL, NULL,
50 (GClassInitFunc) sp_feFlood_class_init,
51 NULL, NULL,
52 sizeof(SPFeFlood),
53 16,
54 (GInstanceInitFunc) sp_feFlood_init,
55 NULL, /* value_table */
56 };
57 feFlood_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeFlood", &feFlood_info, (GTypeFlags)0);
58 }
59 return feFlood_type;
60 }
62 static void
63 sp_feFlood_class_init(SPFeFloodClass *klass)
64 {
65 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
66 SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
68 feFlood_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
70 sp_object_class->build = sp_feFlood_build;
71 sp_object_class->release = sp_feFlood_release;
72 sp_object_class->write = sp_feFlood_write;
73 sp_object_class->set = sp_feFlood_set;
74 sp_object_class->update = sp_feFlood_update;
75 sp_primitive_class->build_renderer = sp_feFlood_build_renderer;
76 }
78 static void
79 sp_feFlood_init(SPFeFlood *feFlood)
80 {
81 feFlood->opacity = 1;
82 }
84 /**
85 * Reads the Inkscape::XML::Node, and initializes SPFeFlood variables. For this to get called,
86 * our name must be associated with a repr via "sp_object_type_register". Best done through
87 * sp-object-repr.cpp's repr_name_entries array.
88 */
89 static void
90 sp_feFlood_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
91 {
92 if (((SPObjectClass *) feFlood_parent_class)->build) {
93 ((SPObjectClass *) feFlood_parent_class)->build(object, document, repr);
94 }
96 /*LOAD ATTRIBUTES FROM REPR HERE*/
97 sp_object_read_attr(object, "flood-opacity");
98 sp_object_read_attr(object, "flood-color");
99 }
101 /**
102 * Drops any allocated memory.
103 */
104 static void
105 sp_feFlood_release(SPObject *object)
106 {
107 if (((SPObjectClass *) feFlood_parent_class)->release)
108 ((SPObjectClass *) feFlood_parent_class)->release(object);
109 }
111 /**
112 * Sets a specific value in the SPFeFlood.
113 */
114 static void
115 sp_feFlood_set(SPObject *object, unsigned int key, gchar const *value)
116 {
117 SPFeFlood *feFlood = SP_FEFLOOD(object);
118 (void)feFlood;
119 gchar const *cend_ptr = NULL;
120 gchar *end_ptr = NULL;
121 guint32 read_color;
122 double read_num;
124 switch(key) {
125 /*DEAL WITH SETTING ATTRIBUTES HERE*/
126 case SP_PROP_FLOOD_COLOR:
127 cend_ptr = NULL;
128 read_color = sp_svg_read_color(value, &cend_ptr, 0xffffffff);
129 if (cend_ptr && read_color != feFlood->color){
130 feFlood->color = read_color;
131 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
132 }
133 break;
134 case SP_PROP_FLOOD_OPACITY:
135 if (value) {
136 read_num = g_ascii_strtod(value, &end_ptr);
137 if (*end_ptr) {
138 g_warning("Unable to convert \"%s\" to number", value);
139 read_num = 1;
140 }
141 }
142 else {
143 read_num = 1;
144 }
145 if (read_num != feFlood->opacity){
146 feFlood->opacity = read_num;
147 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
148 }
149 break;
150 default:
151 if (((SPObjectClass *) feFlood_parent_class)->set)
152 ((SPObjectClass *) feFlood_parent_class)->set(object, key, value);
153 break;
154 }
156 }
158 /**
159 * Receives update notifications.
160 */
161 static void
162 sp_feFlood_update(SPObject *object, SPCtx *ctx, guint flags)
163 {
164 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
165 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
167 /* do something to trigger redisplay, updates? */
169 }
171 if (((SPObjectClass *) feFlood_parent_class)->update) {
172 ((SPObjectClass *) feFlood_parent_class)->update(object, ctx, flags);
173 }
174 }
176 /**
177 * Writes its settings to an incoming repr object, if any.
178 */
179 static Inkscape::XML::Node *
180 sp_feFlood_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
181 {
182 // Inkscape-only object, not copied during an "plain SVG" dump:
183 if (flags & SP_OBJECT_WRITE_EXT) {
184 if (repr) {
185 // is this sane?
186 //repr->mergeFrom(SP_OBJECT_REPR(object), "id");
187 } else {
188 repr = SP_OBJECT_REPR(object)->duplicate(doc);
189 }
190 }
192 if (((SPObjectClass *) feFlood_parent_class)->write) {
193 ((SPObjectClass *) feFlood_parent_class)->write(object, doc, repr, flags);
194 }
196 return repr;
197 }
199 static void sp_feFlood_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
200 g_assert(primitive != NULL);
201 g_assert(filter != NULL);
203 SPFeFlood *sp_flood = SP_FEFLOOD(primitive);
204 (void)sp_flood;
206 int primitive_n = filter->add_primitive(NR::NR_FILTER_FLOOD);
207 NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
208 NR::FilterFlood *nr_flood = dynamic_cast<NR::FilterFlood*>(nr_primitive);
209 g_assert(nr_flood != NULL);
211 sp_filter_primitive_renderer_common(primitive, nr_primitive);
213 nr_flood->set_opacity(sp_flood->opacity);
214 nr_flood->set_color(sp_flood->color);
215 }
218 /*
219 Local Variables:
220 mode:c++
221 c-file-style:"stroustrup"
222 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
223 indent-tabs-mode:nil
224 fill-column:99
225 End:
226 */
227 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :