1 #define __SP_GAUSSIANBLUR_CPP__
3 /** \file
4 * SVG <gaussianBlur> 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-gaussian-blur.h"
23 #include "xml/repr.h"
25 //#define SP_MACROS_SILENT
26 //#include "macros.h"
28 #define DEBUG_GAUSSIANBLUR
29 #ifdef DEBUG_GAUSSIANBLUR
30 # define debug(f, a...) { g_print("%s(%d) %s:", \
31 __FILE__,__LINE__,__FUNCTION__); \
32 g_print(f, ## a); \
33 g_print("\n"); \
34 }
35 #else
36 # define debug(f, a...) /**/
37 #endif
39 /* GaussianBlur base class */
41 static void sp_gaussianBlur_class_init(SPGaussianBlurClass *klass);
42 static void sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur);
44 static void sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
45 static void sp_gaussianBlur_release(SPObject *object);
46 static void sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value);
47 static void sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags);
48 static Inkscape::XML::Node *sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
50 static SPObjectClass *gaussianBlur_parent_class;
52 GType
53 sp_gaussianBlur_get_type()
54 {
55 static GType gaussianBlur_type = 0;
57 if (!gaussianBlur_type) {
58 GTypeInfo gaussianBlur_info = {
59 sizeof(SPGaussianBlurClass),
60 NULL, NULL,
61 (GClassInitFunc) sp_gaussianBlur_class_init,
62 NULL, NULL,
63 sizeof(SPGaussianBlur),
64 16,
65 (GInstanceInitFunc) sp_gaussianBlur_init,
66 NULL, /* value_table */
67 };
68 gaussianBlur_type = g_type_register_static(SP_TYPE_OBJECT, "SPGaussianBlur", &gaussianBlur_info, (GTypeFlags)0);
69 }
70 return gaussianBlur_type;
71 }
73 static void
74 sp_gaussianBlur_class_init(SPGaussianBlurClass *klass)
75 {
76 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
78 gaussianBlur_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
80 sp_object_class->build = sp_gaussianBlur_build;
81 sp_object_class->release = sp_gaussianBlur_release;
82 sp_object_class->write = sp_gaussianBlur_write;
83 sp_object_class->set = sp_gaussianBlur_set;
84 sp_object_class->update = sp_gaussianBlur_update;
85 }
87 static void
88 sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur)
89 {
90 debug("0x%p",gaussianBlur);
92 // gaussianBlur->stdDeviation = 1;
93 }
95 /**
96 * Reads the Inkscape::XML::Node, and initializes SPGaussianBlur variables. For this to get called,
97 * our name must be associated with a repr via "sp_object_type_register". Best done through
98 * sp-object-repr.cpp's repr_name_entries array.
99 */
100 static void
101 sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
102 {
103 debug("0x%p",object);
104 if (((SPObjectClass *) gaussianBlur_parent_class)->build) {
105 ((SPObjectClass *) gaussianBlur_parent_class)->build(object, document, repr);
106 }
108 sp_object_read_attr(object, "stdDeviation");
110 }
112 /**
113 * Drops any allocated memory.
114 */
115 static void
116 sp_gaussianBlur_release(SPObject *object)
117 {
118 debug("0x%p",object);
120 if (((SPObjectClass *) gaussianBlur_parent_class)->release)
121 ((SPObjectClass *) gaussianBlur_parent_class)->release(object);
122 }
124 /**
125 * Sets a specific value in the SPGaussianBlur.
126 */
127 static void
128 sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value)
129 {
130 debug("0x%p %s(%u): '%s'",object,
131 sp_attribute_name(key),key,value);
132 SPGaussianBlur *gaussianBlur = SP_GAUSSIANBLUR(object);
134 switch(key) {
135 case SP_ATTR_STDDEVIATION:
136 gaussianBlur->stdDeviation.set(value);
137 break;
138 default:
139 if (((SPObjectClass *) gaussianBlur_parent_class)->set)
140 ((SPObjectClass *) gaussianBlur_parent_class)->set(object, key, value);
141 break;
142 }
144 }
146 /**
147 * Receives update notifications.
148 */
149 static void
150 sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags)
151 {
152 debug("0x%p",object);
154 if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
155 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
157 /* do something to trigger redisplay, updates? */
159 }
161 if (((SPObjectClass *) gaussianBlur_parent_class)->update) {
162 ((SPObjectClass *) gaussianBlur_parent_class)->update(object, ctx, flags);
163 }
164 }
166 /**
167 * Writes its settings to an incoming repr object, if any.
168 */
169 static Inkscape::XML::Node *
170 sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
171 {
172 debug("0x%p",object);
174 // Inkscape-only object, not copied during an "plain SVG" dump:
175 if (flags & SP_OBJECT_WRITE_EXT) {
176 if (repr) {
177 // is this sane?
178 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
179 } else {
180 repr = SP_OBJECT_REPR(object)->duplicate();
181 }
182 }
184 if (((SPObjectClass *) gaussianBlur_parent_class)->write) {
185 ((SPObjectClass *) gaussianBlur_parent_class)->write(object, repr, flags);
186 }
188 return repr;
189 }
192 /*
193 Local Variables:
194 mode:c++
195 c-file-style:"stroustrup"
196 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
197 indent-tabs-mode:nil
198 fill-column:99
199 End:
200 */
201 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :