1 #define __SP_FECOLORMATRIX_CPP__
3 /** \file
4 * SVG <feColorMatrix> 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-fecolormatrix.h"
23 #include "xml/repr.h"
24 #include "helper-fns.h"
26 #include "display/nr-filter-colormatrix.h"
28 /* FeColorMatrix base class */
30 static void sp_feColorMatrix_class_init(SPFeColorMatrixClass *klass);
31 static void sp_feColorMatrix_init(SPFeColorMatrix *feColorMatrix);
33 static void sp_feColorMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
34 static void sp_feColorMatrix_release(SPObject *object);
35 static void sp_feColorMatrix_set(SPObject *object, unsigned int key, gchar const *value);
36 static void sp_feColorMatrix_update(SPObject *object, SPCtx *ctx, guint flags);
37 static Inkscape::XML::Node *sp_feColorMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
38 static void sp_feColorMatrix_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
40 static SPFilterPrimitiveClass *feColorMatrix_parent_class;
42 GType
43 sp_feColorMatrix_get_type()
44 {
45 static GType feColorMatrix_type = 0;
47 if (!feColorMatrix_type) {
48 GTypeInfo feColorMatrix_info = {
49 sizeof(SPFeColorMatrixClass),
50 NULL, NULL,
51 (GClassInitFunc) sp_feColorMatrix_class_init,
52 NULL, NULL,
53 sizeof(SPFeColorMatrix),
54 16,
55 (GInstanceInitFunc) sp_feColorMatrix_init,
56 NULL, /* value_table */
57 };
58 feColorMatrix_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeColorMatrix", &feColorMatrix_info, (GTypeFlags)0);
59 }
60 return feColorMatrix_type;
61 }
63 static void
64 sp_feColorMatrix_class_init(SPFeColorMatrixClass *klass)
65 {
66 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
67 SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
69 feColorMatrix_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
71 sp_object_class->build = sp_feColorMatrix_build;
72 sp_object_class->release = sp_feColorMatrix_release;
73 sp_object_class->write = sp_feColorMatrix_write;
74 sp_object_class->set = sp_feColorMatrix_set;
75 sp_object_class->update = sp_feColorMatrix_update;
76 sp_primitive_class->build_renderer = sp_feColorMatrix_build_renderer;
77 }
79 static void
80 sp_feColorMatrix_init(SPFeColorMatrix *feColorMatrix)
81 {
82 }
84 /**
85 * Reads the Inkscape::XML::Node, and initializes SPFeColorMatrix 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_feColorMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
91 {
92 if (((SPObjectClass *) feColorMatrix_parent_class)->build) {
93 ((SPObjectClass *) feColorMatrix_parent_class)->build(object, document, repr);
94 }
96 /*LOAD ATTRIBUTES FROM REPR HERE*/
97 sp_object_read_attr(object, "type");
98 sp_object_read_attr(object, "values");
99 }
101 /**
102 * Drops any allocated memory.
103 */
104 static void
105 sp_feColorMatrix_release(SPObject *object)
106 {
107 if (((SPObjectClass *) feColorMatrix_parent_class)->release)
108 ((SPObjectClass *) feColorMatrix_parent_class)->release(object);
109 }
111 static NR::FilterColorMatrixType sp_feColorMatrix_read_type(gchar const *value){
112 if (!value) return NR::COLORMATRIX_MATRIX; //matrix is default
113 switch(value[0]){
114 case 'm':
115 if (strcmp(value, "matrix") == 0) return NR::COLORMATRIX_MATRIX;
116 break;
117 case 's':
118 if (strcmp(value, "saturate") == 0) return NR::COLORMATRIX_SATURATE;
119 break;
120 case 'h':
121 if (strcmp(value, "hueRotate") == 0) return NR::COLORMATRIX_HUEROTATE;
122 break;
123 case 'l':
124 if (strcmp(value, "luminanceToAlpha") == 0) return NR::COLORMATRIX_LUMINANCETOALPHA;
125 break;
126 }
127 return NR::COLORMATRIX_MATRIX; //matrix is default
128 }
130 /**
131 * Sets a specific value in the SPFeColorMatrix.
132 */
133 static void
134 sp_feColorMatrix_set(SPObject *object, unsigned int key, gchar const *str)
135 {
136 SPFeColorMatrix *feColorMatrix = SP_FECOLORMATRIX(object);
137 (void)feColorMatrix;
139 NR::FilterColorMatrixType read_type;
140 gdouble read_num;
141 /*DEAL WITH SETTING ATTRIBUTES HERE*/
142 switch(key) {
143 case SP_ATTR_TYPE:
144 read_type = sp_feColorMatrix_read_type(str);
145 if (feColorMatrix->type != read_type){
146 feColorMatrix->type = read_type;
147 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
148 }
149 break;
150 case SP_ATTR_VALUES:
151 if (str){
152 feColorMatrix->values = helperfns_read_vector(str, 20);
153 feColorMatrix->value = helperfns_read_number(str);
154 object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
155 }
156 break;
157 default:
158 if (((SPObjectClass *) feColorMatrix_parent_class)->set)
159 ((SPObjectClass *) feColorMatrix_parent_class)->set(object, key, str);
160 break;
161 }
162 }
164 /**
165 * Receives update notifications.
166 */
167 static void
168 sp_feColorMatrix_update(SPObject *object, SPCtx *ctx, guint flags)
169 {
170 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
171 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
173 /* do something to trigger redisplay, updates? */
175 }
177 if (((SPObjectClass *) feColorMatrix_parent_class)->update) {
178 ((SPObjectClass *) feColorMatrix_parent_class)->update(object, ctx, flags);
179 }
180 }
182 /**
183 * Writes its settings to an incoming repr object, if any.
184 */
185 static Inkscape::XML::Node *
186 sp_feColorMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
187 {
188 // Inkscape-only object, not copied during an "plain SVG" dump:
189 if (flags & SP_OBJECT_WRITE_EXT) {
190 if (repr) {
191 // is this sane?
192 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
193 } else {
194 repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
195 }
196 }
198 if (((SPObjectClass *) feColorMatrix_parent_class)->write) {
199 ((SPObjectClass *) feColorMatrix_parent_class)->write(object, repr, flags);
200 }
202 return repr;
203 }
205 static void sp_feColorMatrix_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
206 g_assert(primitive != NULL);
207 g_assert(filter != NULL);
209 SPFeColorMatrix *sp_colormatrix = SP_FECOLORMATRIX(primitive);
211 int primitive_n = filter->add_primitive(NR::NR_FILTER_COLORMATRIX);
212 NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
213 NR::FilterColorMatrix *nr_colormatrix = dynamic_cast<NR::FilterColorMatrix*>(nr_primitive);
214 g_assert(nr_colormatrix != NULL);
216 sp_filter_primitive_renderer_common(primitive, nr_primitive);
217 nr_colormatrix->set_type(sp_colormatrix->type);
218 nr_colormatrix->set_value(sp_colormatrix->value);
219 nr_colormatrix->set_values(sp_colormatrix->values);
220 }
222 /*
223 Local Variables:
224 mode:c++
225 c-file-style:"stroustrup"
226 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
227 indent-tabs-mode:nil
228 fill-column:99
229 End:
230 */
231 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :