9456b5966928a5c9fe752b281e7ce7c9b41bdb73
1 #define __SP_FEIMAGE_CPP__
3 /** \file
4 * SVG <feImage> implementation.
5 *
6 */
7 /*
8 * Authors:
9 * Felipe CorrĂȘa da Silva Sanches <felipe.sanches@gmail.com>
10 * hugo Rodrigues <haa.rodrigues@gmail.com>
11 *
12 * Copyright (C) 2007 Felipe 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-feimage.h"
25 #include "xml/repr.h"
26 #include <string.h>
28 #include "display/nr-filter.h"
29 #include "display/nr-filter-image.h"
31 /* FeImage base class */
33 static void sp_feImage_class_init(SPFeImageClass *klass);
34 static void sp_feImage_init(SPFeImage *feImage);
36 static void sp_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
37 static void sp_feImage_release(SPObject *object);
38 static void sp_feImage_set(SPObject *object, unsigned int key, gchar const *value);
39 static void sp_feImage_update(SPObject *object, SPCtx *ctx, guint flags);
40 static Inkscape::XML::Node *sp_feImage_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
41 static void sp_feImage_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
43 static SPFilterPrimitiveClass *feImage_parent_class;
45 GType
46 sp_feImage_get_type()
47 {
48 static GType feImage_type = 0;
50 if (!feImage_type) {
51 GTypeInfo feImage_info = {
52 sizeof(SPFeImageClass),
53 NULL, NULL,
54 (GClassInitFunc) sp_feImage_class_init,
55 NULL, NULL,
56 sizeof(SPFeImage),
57 16,
58 (GInstanceInitFunc) sp_feImage_init,
59 NULL, /* value_table */
60 };
61 feImage_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeImage", &feImage_info, (GTypeFlags)0);
62 }
63 return feImage_type;
64 }
66 static void
67 sp_feImage_class_init(SPFeImageClass *klass)
68 {
69 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
70 SPFilterPrimitiveClass * sp_primitive_class = (SPFilterPrimitiveClass *)klass;
72 feImage_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
74 sp_object_class->build = sp_feImage_build;
75 sp_object_class->release = sp_feImage_release;
76 sp_object_class->write = sp_feImage_write;
77 sp_object_class->set = sp_feImage_set;
78 sp_object_class->update = sp_feImage_update;
80 sp_primitive_class->build_renderer = sp_feImage_build_renderer;
81 }
83 static void
84 sp_feImage_init(SPFeImage */*feImage*/)
85 {
86 }
88 /**
89 * Reads the Inkscape::XML::Node, and initializes SPFeImage variables. For this to get called,
90 * our name must be associated with a repr via "sp_object_type_register". Best done through
91 * sp-object-repr.cpp's repr_name_entries array.
92 */
93 static void
94 sp_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
95 {
96 if (((SPObjectClass *) feImage_parent_class)->build) {
97 ((SPObjectClass *) feImage_parent_class)->build(object, document, repr);
98 }
100 /*LOAD ATTRIBUTES FROM REPR HERE*/
102 sp_object_read_attr(object, "x");
103 sp_object_read_attr(object, "y");
104 sp_object_read_attr(object, "width");
105 sp_object_read_attr(object, "height");
106 sp_object_read_attr(object, "xlink:href");
108 }
110 /**
111 * Drops any allocated memory.
112 */
113 static void
114 sp_feImage_release(SPObject *object)
115 {
117 if (((SPObjectClass *) feImage_parent_class)->release)
118 ((SPObjectClass *) feImage_parent_class)->release(object);
119 }
121 /**
122 * Sets a specific value in the SPFeImage.
123 */
124 static void
125 sp_feImage_set(SPObject *object, unsigned int key, gchar const *value)
126 {
127 SPFeImage *feImage = SP_FEIMAGE(object);
128 (void)feImage;
130 switch(key) {
131 /*DEAL WITH SETTING ATTRIBUTES HERE*/
132 case SP_ATTR_XLINK_HREF:
133 if (feImage->href) g_free(feImage->href);
134 feImage->href = (value) ? g_strdup (value) : NULL;
135 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
136 break;
137 case SP_ATTR_X:
138 feImage->x.readOrUnset(value);
139 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
140 break;
141 case SP_ATTR_Y:
142 feImage->y.readOrUnset(value);
143 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
144 break;
145 case SP_ATTR_WIDTH:
146 feImage->width.readOrUnset(value);
147 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
148 break;
149 case SP_ATTR_HEIGHT:
150 feImage->height.readOrUnset(value);
151 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
152 break;
153 default:
154 if (((SPObjectClass *) feImage_parent_class)->set)
155 ((SPObjectClass *) feImage_parent_class)->set(object, key, value);
156 break;
157 }
159 }
161 /**
162 * Receives update notifications.
163 */
164 static void
165 sp_feImage_update(SPObject *object, SPCtx *ctx, guint flags)
166 {
168 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
169 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
171 /* do something to trigger redisplay, updates? */
172 }
174 if (((SPObjectClass *) feImage_parent_class)->update) {
175 ((SPObjectClass *) feImage_parent_class)->update(object, ctx, flags);
176 }
177 }
179 /**
180 * Writes its settings to an incoming repr object, if any.
181 */
182 static Inkscape::XML::Node *
183 sp_feImage_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
184 {
185 // Inkscape-only object, not copied during an "plain SVG" dump:
186 if (flags & SP_OBJECT_WRITE_EXT) {
187 if (repr) {
188 // is this sane?
189 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
190 } else {
191 repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
192 }
193 }
195 if (((SPObjectClass *) feImage_parent_class)->write) {
196 ((SPObjectClass *) feImage_parent_class)->write(object, repr, flags);
197 }
199 return repr;
200 }
202 static void sp_feImage_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
203 g_assert(primitive != NULL);
204 g_assert(filter != NULL);
206 SPFeImage *sp_image = SP_FEIMAGE(primitive);
208 int primitive_n = filter->add_primitive(NR::NR_FILTER_IMAGE);
209 NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
210 NR::FilterImage *nr_image = dynamic_cast<NR::FilterImage*>(nr_primitive);
211 g_assert(nr_image != NULL);
213 sp_filter_primitive_renderer_common(primitive, nr_primitive);
214 nr_image->set_region(sp_image->x, sp_image->y, sp_image->width, sp_image->height);
215 nr_image->set_href(sp_image->href);
216 }
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 :