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 "strneq.h"
22 #include "attributes.h"
23 #include "svg/svg.h"
24 #include "flood.h"
25 #include "xml/repr.h"
26 #include "helper-fns.h"
28 /* FeFlood base class */
30 static void sp_feFlood_class_init(SPFeFloodClass *klass);
31 static void sp_feFlood_init(SPFeFlood *feFlood);
33 static void sp_feFlood_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
34 static void sp_feFlood_release(SPObject *object);
35 static void sp_feFlood_set(SPObject *object, unsigned int key, gchar const *value);
36 static void sp_feFlood_update(SPObject *object, SPCtx *ctx, guint flags);
37 static Inkscape::XML::Node *sp_feFlood_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
38 static void sp_feFlood_build_renderer(SPFilterPrimitive *primitive, Inkscape::Filters::Filter *filter);
40 static SPFilterPrimitiveClass *feFlood_parent_class;
42 GType
43 sp_feFlood_get_type()
44 {
45 static GType feFlood_type = 0;
47 if (!feFlood_type) {
48 GTypeInfo feFlood_info = {
49 sizeof(SPFeFloodClass),
50 NULL, NULL,
51 (GClassInitFunc) sp_feFlood_class_init,
52 NULL, NULL,
53 sizeof(SPFeFlood),
54 16,
55 (GInstanceInitFunc) sp_feFlood_init,
56 NULL, /* value_table */
57 };
58 feFlood_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeFlood", &feFlood_info, (GTypeFlags)0);
59 }
60 return feFlood_type;
61 }
63 static void
64 sp_feFlood_class_init(SPFeFloodClass *klass)
65 {
66 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
67 SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
69 feFlood_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
71 sp_object_class->build = sp_feFlood_build;
72 sp_object_class->release = sp_feFlood_release;
73 sp_object_class->write = sp_feFlood_write;
74 sp_object_class->set = sp_feFlood_set;
75 sp_object_class->update = sp_feFlood_update;
76 sp_primitive_class->build_renderer = sp_feFlood_build_renderer;
77 }
79 static void
80 sp_feFlood_init(SPFeFlood *feFlood)
81 {
82 feFlood->opacity = 1;
83 feFlood->icc = NULL;
84 }
86 /**
87 * Reads the Inkscape::XML::Node, and initializes SPFeFlood variables. For this to get called,
88 * our name must be associated with a repr via "sp_object_type_register". Best done through
89 * sp-object-repr.cpp's repr_name_entries array.
90 */
91 static void
92 sp_feFlood_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
93 {
94 if (((SPObjectClass *) feFlood_parent_class)->build) {
95 ((SPObjectClass *) feFlood_parent_class)->build(object, document, repr);
96 }
98 /*LOAD ATTRIBUTES FROM REPR HERE*/
99 object->readAttr( "flood-opacity");
100 object->readAttr( "flood-color");
101 }
103 /**
104 * Drops any allocated memory.
105 */
106 static void
107 sp_feFlood_release(SPObject *object)
108 {
109 if (((SPObjectClass *) feFlood_parent_class)->release)
110 ((SPObjectClass *) feFlood_parent_class)->release(object);
111 }
113 /**
114 * Sets a specific value in the SPFeFlood.
115 */
116 static void
117 sp_feFlood_set(SPObject *object, unsigned int key, gchar const *value)
118 {
119 SPFeFlood *feFlood = SP_FEFLOOD(object);
120 (void)feFlood;
121 gchar const *cend_ptr = NULL;
122 gchar *end_ptr = NULL;
123 guint32 read_color;
124 double read_num;
125 bool dirty = false;
127 switch(key) {
128 /*DEAL WITH SETTING ATTRIBUTES HERE*/
129 case SP_PROP_FLOOD_COLOR:
130 cend_ptr = NULL;
131 read_color = sp_svg_read_color(value, &cend_ptr, 0xffffffff);
133 if (cend_ptr && read_color != feFlood->color){
134 feFlood->color = read_color;
135 dirty=true;
136 }
138 if (cend_ptr){
139 while (g_ascii_isspace(*cend_ptr)) {
140 ++cend_ptr;
141 }
142 if (strneq(cend_ptr, "icc-color(", 10)) {
143 if (!feFlood->icc) feFlood->icc = new SVGICCColor();
144 if ( ! sp_svg_read_icc_color( cend_ptr, feFlood->icc ) ) {
145 delete feFlood->icc;
146 feFlood->icc = NULL;
147 }
148 dirty = true;
149 }
150 }
151 if (dirty)
152 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
153 break;
154 case SP_PROP_FLOOD_OPACITY:
155 if (value) {
156 read_num = g_ascii_strtod(value, &end_ptr);
157 if (*end_ptr) {
158 g_warning("Unable to convert \"%s\" to number", value);
159 read_num = 1;
160 }
161 }
162 else {
163 read_num = 1;
164 }
165 if (read_num != feFlood->opacity){
166 feFlood->opacity = read_num;
167 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
168 }
169 break;
170 default:
171 if (((SPObjectClass *) feFlood_parent_class)->set)
172 ((SPObjectClass *) feFlood_parent_class)->set(object, key, value);
173 break;
174 }
176 }
178 /**
179 * Receives update notifications.
180 */
181 static void
182 sp_feFlood_update(SPObject *object, SPCtx *ctx, guint flags)
183 {
184 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
185 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
187 /* do something to trigger redisplay, updates? */
189 }
191 if (((SPObjectClass *) feFlood_parent_class)->update) {
192 ((SPObjectClass *) feFlood_parent_class)->update(object, ctx, flags);
193 }
194 }
196 /**
197 * Writes its settings to an incoming repr object, if any.
198 */
199 static Inkscape::XML::Node *
200 sp_feFlood_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
201 {
202 /* TODO: Don't just clone, but create a new repr node and write all
203 * relevant values into it */
204 if (!repr) {
205 repr = SP_OBJECT_REPR(object)->duplicate(doc);
206 }
208 if (((SPObjectClass *) feFlood_parent_class)->write) {
209 ((SPObjectClass *) feFlood_parent_class)->write(object, doc, repr, flags);
210 }
212 return repr;
213 }
215 static void sp_feFlood_build_renderer(SPFilterPrimitive *primitive, Inkscape::Filters::Filter *filter) {
216 g_assert(primitive != NULL);
217 g_assert(filter != NULL);
219 SPFeFlood *sp_flood = SP_FEFLOOD(primitive);
220 (void)sp_flood;
222 int primitive_n = filter->add_primitive(Inkscape::Filters::NR_FILTER_FLOOD);
223 Inkscape::Filters::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
224 Inkscape::Filters::FilterFlood *nr_flood = dynamic_cast<Inkscape::Filters::FilterFlood*>(nr_primitive);
225 g_assert(nr_flood != NULL);
227 sp_filter_primitive_renderer_common(primitive, nr_primitive);
229 nr_flood->set_opacity(sp_flood->opacity);
230 nr_flood->set_color(sp_flood->color);
231 nr_flood->set_icc(sp_flood->icc);
232 }
235 /*
236 Local Variables:
237 mode:c++
238 c-file-style:"stroustrup"
239 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
240 indent-tabs-mode:nil
241 fill-column:99
242 End:
243 */
244 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :