1 #define __SP_FECOLORMATRIX_CPP__
3 /** \file
4 * SVG <feColorMatrix> implementation.
5 *
6 */
7 /*
8 * Authors:
9 * Felipe Sanches <felipe.sanches@gmail.com>
10 * hugo Rodrigues <haa.rodrigues@gmail.com>
11 *
12 * Copyright (C) 2007 Felipe C. da S. Sanches
13 * Copyright (C) 2006 Hugo Rodrigues
14 *
15 * Released under GNU GPL, read the file 'COPYING' for more information
16 */
18 #ifdef HAVE_CONFIG_H
19 # include "config.h"
20 #endif
22 #include "attributes.h"
23 #include "svg/svg.h"
24 #include "sp-fecolormatrix.h"
25 #include "xml/repr.h"
26 #include "helper-fns.h"
28 #include "display/nr-filter-colormatrix.h"
30 /* FeColorMatrix base class */
32 static void sp_feColorMatrix_class_init(SPFeColorMatrixClass *klass);
33 static void sp_feColorMatrix_init(SPFeColorMatrix *feColorMatrix);
35 static void sp_feColorMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
36 static void sp_feColorMatrix_release(SPObject *object);
37 static void sp_feColorMatrix_set(SPObject *object, unsigned int key, gchar const *value);
38 static void sp_feColorMatrix_update(SPObject *object, SPCtx *ctx, guint flags);
39 static Inkscape::XML::Node *sp_feColorMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
40 static void sp_feColorMatrix_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
42 static SPFilterPrimitiveClass *feColorMatrix_parent_class;
44 GType
45 sp_feColorMatrix_get_type()
46 {
47 static GType feColorMatrix_type = 0;
49 if (!feColorMatrix_type) {
50 GTypeInfo feColorMatrix_info = {
51 sizeof(SPFeColorMatrixClass),
52 NULL, NULL,
53 (GClassInitFunc) sp_feColorMatrix_class_init,
54 NULL, NULL,
55 sizeof(SPFeColorMatrix),
56 16,
57 (GInstanceInitFunc) sp_feColorMatrix_init,
58 NULL, /* value_table */
59 };
60 feColorMatrix_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeColorMatrix", &feColorMatrix_info, (GTypeFlags)0);
61 }
62 return feColorMatrix_type;
63 }
65 static void
66 sp_feColorMatrix_class_init(SPFeColorMatrixClass *klass)
67 {
68 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
69 SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
71 feColorMatrix_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
73 sp_object_class->build = sp_feColorMatrix_build;
74 sp_object_class->release = sp_feColorMatrix_release;
75 sp_object_class->write = sp_feColorMatrix_write;
76 sp_object_class->set = sp_feColorMatrix_set;
77 sp_object_class->update = sp_feColorMatrix_update;
78 sp_primitive_class->build_renderer = sp_feColorMatrix_build_renderer;
79 }
81 static void
82 sp_feColorMatrix_init(SPFeColorMatrix */*feColorMatrix*/)
83 {
84 }
86 /**
87 * Reads the Inkscape::XML::Node, and initializes SPFeColorMatrix 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_feColorMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
93 {
94 if (((SPObjectClass *) feColorMatrix_parent_class)->build) {
95 ((SPObjectClass *) feColorMatrix_parent_class)->build(object, document, repr);
96 }
98 /*LOAD ATTRIBUTES FROM REPR HERE*/
99 sp_object_read_attr(object, "type");
100 sp_object_read_attr(object, "values");
101 }
103 /**
104 * Drops any allocated memory.
105 */
106 static void
107 sp_feColorMatrix_release(SPObject *object)
108 {
109 if (((SPObjectClass *) feColorMatrix_parent_class)->release)
110 ((SPObjectClass *) feColorMatrix_parent_class)->release(object);
111 }
113 static NR::FilterColorMatrixType sp_feColorMatrix_read_type(gchar const *value){
114 if (!value) return NR::COLORMATRIX_MATRIX; //matrix is default
115 switch(value[0]){
116 case 'm':
117 if (strcmp(value, "matrix") == 0) return NR::COLORMATRIX_MATRIX;
118 break;
119 case 's':
120 if (strcmp(value, "saturate") == 0) return NR::COLORMATRIX_SATURATE;
121 break;
122 case 'h':
123 if (strcmp(value, "hueRotate") == 0) return NR::COLORMATRIX_HUEROTATE;
124 break;
125 case 'l':
126 if (strcmp(value, "luminanceToAlpha") == 0) return NR::COLORMATRIX_LUMINANCETOALPHA;
127 break;
128 }
129 return NR::COLORMATRIX_MATRIX; //matrix is default
130 }
132 /**
133 * Sets a specific value in the SPFeColorMatrix.
134 */
135 static void
136 sp_feColorMatrix_set(SPObject *object, unsigned int key, gchar const *str)
137 {
138 SPFeColorMatrix *feColorMatrix = SP_FECOLORMATRIX(object);
139 (void)feColorMatrix;
141 NR::FilterColorMatrixType read_type;
142 /*DEAL WITH SETTING ATTRIBUTES HERE*/
143 switch(key) {
144 case SP_ATTR_TYPE:
145 read_type = sp_feColorMatrix_read_type(str);
146 if (feColorMatrix->type != read_type){
147 feColorMatrix->type = read_type;
148 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
149 }
150 break;
151 case SP_ATTR_VALUES:
152 if (str){
153 feColorMatrix->values = helperfns_read_vector(str, 20);
154 feColorMatrix->value = helperfns_read_number(str);
155 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
156 }
157 break;
158 default:
159 if (((SPObjectClass *) feColorMatrix_parent_class)->set)
160 ((SPObjectClass *) feColorMatrix_parent_class)->set(object, key, str);
161 break;
162 }
163 }
165 /**
166 * Receives update notifications.
167 */
168 static void
169 sp_feColorMatrix_update(SPObject *object, SPCtx *ctx, guint flags)
170 {
171 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
172 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
174 /* do something to trigger redisplay, updates? */
176 }
178 if (((SPObjectClass *) feColorMatrix_parent_class)->update) {
179 ((SPObjectClass *) feColorMatrix_parent_class)->update(object, ctx, flags);
180 }
181 }
183 /**
184 * Writes its settings to an incoming repr object, if any.
185 */
186 static Inkscape::XML::Node *
187 sp_feColorMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
188 {
189 // Inkscape-only object, not copied during an "plain SVG" dump:
190 if (flags & SP_OBJECT_WRITE_EXT) {
191 if (repr) {
192 // is this sane?
193 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
194 } else {
195 repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
196 }
197 }
199 if (((SPObjectClass *) feColorMatrix_parent_class)->write) {
200 ((SPObjectClass *) feColorMatrix_parent_class)->write(object, repr, flags);
201 }
203 return repr;
204 }
206 static void sp_feColorMatrix_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
207 g_assert(primitive != NULL);
208 g_assert(filter != NULL);
210 SPFeColorMatrix *sp_colormatrix = SP_FECOLORMATRIX(primitive);
212 int primitive_n = filter->add_primitive(NR::NR_FILTER_COLORMATRIX);
213 NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
214 NR::FilterColorMatrix *nr_colormatrix = dynamic_cast<NR::FilterColorMatrix*>(nr_primitive);
215 g_assert(nr_colormatrix != NULL);
217 sp_filter_primitive_renderer_common(primitive, nr_primitive);
218 nr_colormatrix->set_type(sp_colormatrix->type);
219 nr_colormatrix->set_value(sp_colormatrix->value);
220 nr_colormatrix->set_values(sp_colormatrix->values);
221 }
223 /*
224 Local Variables:
225 mode:c++
226 c-file-style:"stroustrup"
227 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
228 indent-tabs-mode:nil
229 fill-column:99
230 End:
231 */
232 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :