1 #define __SP_FEMERGE_CPP__
3 /** \file
4 * SVG <feMerge> 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 "xml/repr.h"
24 #include "sp-femerge.h"
25 #include "sp-femergenode.h"
26 #include "display/nr-filter-merge.h"
28 /* FeMerge base class */
30 static void sp_feMerge_class_init(SPFeMergeClass *klass);
31 static void sp_feMerge_init(SPFeMerge *feMerge);
33 static void sp_feMerge_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
34 static void sp_feMerge_release(SPObject *object);
35 static void sp_feMerge_set(SPObject *object, unsigned int key, gchar const *value);
36 static void sp_feMerge_update(SPObject *object, SPCtx *ctx, guint flags);
37 static Inkscape::XML::Node *sp_feMerge_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
38 static void sp_feMerge_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
40 static SPFilterPrimitiveClass *feMerge_parent_class;
42 GType
43 sp_feMerge_get_type()
44 {
45 static GType feMerge_type = 0;
47 if (!feMerge_type) {
48 GTypeInfo feMerge_info = {
49 sizeof(SPFeMergeClass),
50 NULL, NULL,
51 (GClassInitFunc) sp_feMerge_class_init,
52 NULL, NULL,
53 sizeof(SPFeMerge),
54 16,
55 (GInstanceInitFunc) sp_feMerge_init,
56 NULL, /* value_table */
57 };
58 feMerge_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeMerge", &feMerge_info, (GTypeFlags)0);
59 }
60 return feMerge_type;
61 }
63 static void
64 sp_feMerge_class_init(SPFeMergeClass *klass)
65 {
66 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
67 SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
69 feMerge_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
71 sp_object_class->build = sp_feMerge_build;
72 sp_object_class->release = sp_feMerge_release;
73 sp_object_class->write = sp_feMerge_write;
74 sp_object_class->set = sp_feMerge_set;
75 sp_object_class->update = sp_feMerge_update;
77 sp_primitive_class->build_renderer = sp_feMerge_build_renderer;
78 }
80 static void
81 sp_feMerge_init(SPFeMerge *feMerge)
82 {
83 }
85 /**
86 * Reads the Inkscape::XML::Node, and initializes SPFeMerge variables. For this to get called,
87 * our name must be associated with a repr via "sp_object_type_register". Best done through
88 * sp-object-repr.cpp's repr_name_entries array.
89 */
90 static void
91 sp_feMerge_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
92 {
93 if (((SPObjectClass *) feMerge_parent_class)->build) {
94 ((SPObjectClass *) feMerge_parent_class)->build(object, document, repr);
95 }
97 /*LOAD ATTRIBUTES FROM REPR HERE*/
98 }
100 /**
101 * Drops any allocated memory.
102 */
103 static void
104 sp_feMerge_release(SPObject *object)
105 {
106 if (((SPObjectClass *) feMerge_parent_class)->release)
107 ((SPObjectClass *) feMerge_parent_class)->release(object);
108 }
110 /**
111 * Sets a specific value in the SPFeMerge.
112 */
113 static void
114 sp_feMerge_set(SPObject *object, unsigned int key, gchar const *value)
115 {
116 SPFeMerge *feMerge = SP_FEMERGE(object);
117 (void)feMerge;
119 switch(key) {
120 /*DEAL WITH SETTING ATTRIBUTES HERE*/
121 default:
122 if (((SPObjectClass *) feMerge_parent_class)->set)
123 ((SPObjectClass *) feMerge_parent_class)->set(object, key, value);
124 break;
125 }
127 }
129 /**
130 * Receives update notifications.
131 */
132 static void
133 sp_feMerge_update(SPObject *object, SPCtx *ctx, guint flags)
134 {
135 if (flags & SP_OBJECT_MODIFIED_FLAG) {
136 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
137 }
139 if (((SPObjectClass *) feMerge_parent_class)->update) {
140 ((SPObjectClass *) feMerge_parent_class)->update(object, ctx, flags);
141 }
142 }
144 /**
145 * Writes its settings to an incoming repr object, if any.
146 */
147 static Inkscape::XML::Node *
148 sp_feMerge_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
149 {
150 // Inkscape-only object, not copied during an "plain SVG" dump:
151 if (flags & SP_OBJECT_WRITE_EXT) {
152 if (repr) {
153 // is this sane?
154 //repr->mergeFrom(SP_OBJECT_REPR(object), "id");
155 } else {
156 repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
157 }
158 }
160 if (((SPObjectClass *) feMerge_parent_class)->write) {
161 ((SPObjectClass *) feMerge_parent_class)->write(object, repr, flags);
162 }
164 return repr;
165 }
167 static void sp_feMerge_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
168 g_assert(primitive != NULL);
169 g_assert(filter != NULL);
171 SPFeMerge *sp_merge = SP_FEMERGE(primitive);
173 int primitive_n = filter->add_primitive(NR::NR_FILTER_MERGE);
174 NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
175 NR::FilterMerge *nr_merge = dynamic_cast<NR::FilterMerge*>(nr_primitive);
176 g_assert(nr_merge != NULL);
178 sp_filter_primitive_renderer_common(primitive, nr_primitive);
180 SPObject *input = primitive->children;
181 int in_nr = 0;
182 while (input) {
183 if (SP_IS_FEMERGENODE(input)) {
184 SPFeMergeNode *node = SP_FEMERGENODE(input);
185 nr_merge->set_input(in_nr, node->input);
186 in_nr++;
187 }
188 input = input->next;
189 }
190 }
193 /*
194 Local Variables:
195 mode:c++
196 c-file-style:"stroustrup"
197 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
198 indent-tabs-mode:nil
199 fill-column:99
200 End:
201 */
202 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :