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[inkscape.git] / src / sp-feconvolvematrix.cpp
1 #define __SP_FECONVOLVEMATRIX_CPP__
3 /** \file
4  * SVG <feConvolveMatrix> 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-feconvolvematrix.h"
23 #include "xml/repr.h"
26 /* FeConvolveMatrix base class */
28 static void sp_feConvolveMatrix_class_init(SPFeConvolveMatrixClass *klass);
29 static void sp_feConvolveMatrix_init(SPFeConvolveMatrix *feConvolveMatrix);
31 static void sp_feConvolveMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
32 static void sp_feConvolveMatrix_release(SPObject *object);
33 static void sp_feConvolveMatrix_set(SPObject *object, unsigned int key, gchar const *value);
34 static void sp_feConvolveMatrix_update(SPObject *object, SPCtx *ctx, guint flags);
35 static Inkscape::XML::Node *sp_feConvolveMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
37 static SPFilterPrimitiveClass *feConvolveMatrix_parent_class;
39 GType
40 sp_feConvolveMatrix_get_type()
41 {
42     static GType feConvolveMatrix_type = 0;
44     if (!feConvolveMatrix_type) {
45         GTypeInfo feConvolveMatrix_info = {
46             sizeof(SPFeConvolveMatrixClass),
47             NULL, NULL,
48             (GClassInitFunc) sp_feConvolveMatrix_class_init,
49             NULL, NULL,
50             sizeof(SPFeConvolveMatrix),
51             16,
52             (GInstanceInitFunc) sp_feConvolveMatrix_init,
53             NULL,    /* value_table */
54         };
55         feConvolveMatrix_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeConvolveMatrix", &feConvolveMatrix_info, (GTypeFlags)0);
56     }
57     return feConvolveMatrix_type;
58 }
60 static void
61 sp_feConvolveMatrix_class_init(SPFeConvolveMatrixClass *klass)
62 {
63     SPObjectClass *sp_object_class = (SPObjectClass *)klass;
65     feConvolveMatrix_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
67     sp_object_class->build = sp_feConvolveMatrix_build;
68     sp_object_class->release = sp_feConvolveMatrix_release;
69     sp_object_class->write = sp_feConvolveMatrix_write;
70     sp_object_class->set = sp_feConvolveMatrix_set;
71     sp_object_class->update = sp_feConvolveMatrix_update;
72 }
74 static void
75 sp_feConvolveMatrix_init(SPFeConvolveMatrix *feConvolveMatrix)
76 {
77 }
79 /**
80  * Reads the Inkscape::XML::Node, and initializes SPFeConvolveMatrix variables.  For this to get called,
81  * our name must be associated with a repr via "sp_object_type_register".  Best done through
82  * sp-object-repr.cpp's repr_name_entries array.
83  */
84 static void
85 sp_feConvolveMatrix_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
86 {
87     if (((SPObjectClass *) feConvolveMatrix_parent_class)->build) {
88         ((SPObjectClass *) feConvolveMatrix_parent_class)->build(object, document, repr);
89     }
91     /*LOAD ATTRIBUTES FROM REPR HERE*/
92 }
94 /**
95  * Drops any allocated memory.
96  */
97 static void
98 sp_feConvolveMatrix_release(SPObject *object)
99 {
100     if (((SPObjectClass *) feConvolveMatrix_parent_class)->release)
101         ((SPObjectClass *) feConvolveMatrix_parent_class)->release(object);
104 /**
105  * Sets a specific value in the SPFeConvolveMatrix.
106  */
107 static void
108 sp_feConvolveMatrix_set(SPObject *object, unsigned int key, gchar const *value)
110     SPFeConvolveMatrix *feConvolveMatrix = SP_FECONVOLVEMATRIX(object);
111     (void)feConvolveMatrix;
113     switch(key) {
114         /*DEAL WITH SETTING ATTRIBUTES HERE*/
115         default:
116             if (((SPObjectClass *) feConvolveMatrix_parent_class)->set)
117                 ((SPObjectClass *) feConvolveMatrix_parent_class)->set(object, key, value);
118             break;
119     }
123 /**
124  * Receives update notifications.
125  */
126 static void
127 sp_feConvolveMatrix_update(SPObject *object, SPCtx *ctx, guint flags)
129     if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
130                  SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
132         /* do something to trigger redisplay, updates? */
134     }
136     if (((SPObjectClass *) feConvolveMatrix_parent_class)->update) {
137         ((SPObjectClass *) feConvolveMatrix_parent_class)->update(object, ctx, flags);
138     }
141 /**
142  * Writes its settings to an incoming repr object, if any.
143  */
144 static Inkscape::XML::Node *
145 sp_feConvolveMatrix_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
147     // Inkscape-only object, not copied during an "plain SVG" dump:
148     if (flags & SP_OBJECT_WRITE_EXT) {
149         if (repr) {
150             // is this sane?
151             repr->mergeFrom(SP_OBJECT_REPR(object), "id");
152         } else {
153             repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
154         }
155     }
157     if (((SPObjectClass *) feConvolveMatrix_parent_class)->write) {
158         ((SPObjectClass *) feConvolveMatrix_parent_class)->write(object, repr, flags);
159     }
161     return repr;
165 /*
166   Local Variables:
167   mode:c++
168   c-file-style:"stroustrup"
169   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
170   indent-tabs-mode:nil
171   fill-column:99
172   End:
173 */
174 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :