← Back to branch summary

~centralelyon2010/inkscape/imagelinks2

« back to all changes in this revision

Viewing changes to src/filters/componenttransfer.cpp

  • Committer: Ted Gould
  • Date: 2008-11-21 05:24:08 UTC
  • Revision ID: ted@canonical.com-20081121052408-tilucis2pjrrpzxx
Merge from fe-moved

Show diffs side-by-side

added added

removed removed

Lines of Context:
src/filters/componenttransfer.cpp
 
1
#define __SP_FECOMPONENTTRANSFER_CPP__
 
2
 
 
3
/** \file
 
4
 * SVG <feComponentTransfer> 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
 */
 
15
 
 
16
#ifdef HAVE_CONFIG_H
 
17
# include "config.h"
 
18
#endif
 
19
 
 
20
#include <string.h>
 
21
 
 
22
#include "document.h"
 
23
#include "attributes.h"
 
24
#include "svg/svg.h"
 
25
#include "componenttransfer.h"
 
26
#include "componenttransfer-funcnode.h"
 
27
#include "xml/repr.h"
 
28
//#include "display/nr-filter-component-transfer.h"
 
29
 
 
30
/* FeComponentTransfer base class */
 
31
 
 
32
static void sp_feComponentTransfer_class_init(SPFeComponentTransferClass *klass);
 
33
static void sp_feComponentTransfer_init(SPFeComponentTransfer *feComponentTransfer);
 
34
 
 
35
static void sp_feComponentTransfer_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
 
36
static void sp_feComponentTransfer_release(SPObject *object);
 
37
static void sp_feComponentTransfer_set(SPObject *object, unsigned int key, gchar const *value);
 
38
static void sp_feComponentTransfer_update(SPObject *object, SPCtx *ctx, guint flags);
 
39
static void sp_feComponentTransfer_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
 
40
static void sp_feComponentTransfer_remove_child(SPObject *object, Inkscape::XML::Node *child);
 
41
static void sp_feComponentTransfer_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
 
42
static Inkscape::XML::Node *sp_feComponentTransfer_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
 
43
static SPFilterPrimitiveClass *feComponentTransfer_parent_class;
 
44
 
 
45
GType
 
46
sp_feComponentTransfer_get_type()
 
47
{
 
48
    static GType feComponentTransfer_type = 0;
 
49
 
 
50
    if (!feComponentTransfer_type) {
 
51
        GTypeInfo feComponentTransfer_info = {
 
52
            sizeof(SPFeComponentTransferClass),
 
53
            NULL, NULL,
 
54
            (GClassInitFunc) sp_feComponentTransfer_class_init,
 
55
            NULL, NULL,
 
56
            sizeof(SPFeComponentTransfer),
 
57
            16,
 
58
            (GInstanceInitFunc) sp_feComponentTransfer_init,
 
59
            NULL,    /* value_table */
 
60
        };
 
61
        feComponentTransfer_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeComponentTransfer", &feComponentTransfer_info, (GTypeFlags)0);
 
62
    }
 
63
    return feComponentTransfer_type;
 
64
}
 
65
 
 
66
static void
 
67
sp_feComponentTransfer_class_init(SPFeComponentTransferClass *klass)
 
68
{
 
69
    SPObjectClass *sp_object_class = (SPObjectClass *)klass;
 
70
    SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
 
71
    feComponentTransfer_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
 
72
 
 
73
    sp_object_class->build = sp_feComponentTransfer_build;
 
74
    sp_object_class->release = sp_feComponentTransfer_release;
 
75
    sp_object_class->write = sp_feComponentTransfer_write;
 
76
    sp_object_class->set = sp_feComponentTransfer_set;
 
77
    sp_object_class->update = sp_feComponentTransfer_update;
 
78
    sp_object_class->child_added = sp_feComponentTransfer_child_added;
 
79
    sp_object_class->remove_child = sp_feComponentTransfer_remove_child;
 
80
 
 
81
    sp_primitive_class->build_renderer = sp_feComponentTransfer_build_renderer;
 
82
}
 
83
 
 
84
static void
 
85
sp_feComponentTransfer_init(SPFeComponentTransfer */*feComponentTransfer*/)
 
86
{}
 
87
 
 
88
/**
 
89
 * Reads the Inkscape::XML::Node, and initializes SPFeComponentTransfer 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_feComponentTransfer_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
 
95
{
 
96
    if (((SPObjectClass *) feComponentTransfer_parent_class)->build) {
 
97
        ((SPObjectClass *) feComponentTransfer_parent_class)->build(object, document, repr);
 
98
    }
 
99
 
 
100
    /*LOAD ATTRIBUTES FROM REPR HERE*/
 
101
 
 
102
    //do we need this?
 
103
    sp_document_add_resource(document, "feComponentTransfer", object);
 
104
}
 
105
 
 
106
static void sp_feComponentTransfer_children_modified(SPFeComponentTransfer *sp_componenttransfer)
 
107
{
 
108
    if (sp_componenttransfer->renderer) {
 
109
        SPObject* node = sp_componenttransfer->children;
 
110
        for(;node;node=node->next){
 
111
            int i=4;
 
112
            if (SP_IS_FEFUNCR(node)) i=0;
 
113
            if (SP_IS_FEFUNCG(node)) i=1;
 
114
            if (SP_IS_FEFUNCB(node)) i=2;
 
115
            if (SP_IS_FEFUNCA(node)) i=3;
 
116
            if (i==4) break;
 
117
            sp_componenttransfer->renderer->type[i] = ((SPFeFuncNode *) node)->type;
 
118
            sp_componenttransfer->renderer->tableValues[i] = ((SPFeFuncNode *) node)->tableValues;
 
119
            sp_componenttransfer->renderer->slope[i] = ((SPFeFuncNode *) node)->slope;
 
120
            sp_componenttransfer->renderer->intercept[i] = ((SPFeFuncNode *) node)->intercept;
 
121
            sp_componenttransfer->renderer->amplitude[i] = ((SPFeFuncNode *) node)->amplitude;
 
122
            sp_componenttransfer->renderer->exponent[i] = ((SPFeFuncNode *) node)->exponent;
 
123
            sp_componenttransfer->renderer->offset[i] = ((SPFeFuncNode *) node)->offset;
 
124
        }
 
125
    }
 
126
}
 
127
 
 
128
/**
 
129
 * Callback for child_added event.
 
130
 */
 
131
static void
 
132
sp_feComponentTransfer_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
 
133
{
 
134
    g_warning("child_added");
 
135
    SPFeComponentTransfer *f = SP_FECOMPONENTTRANSFER(object);
 
136
 
 
137
    if (((SPObjectClass *) feComponentTransfer_parent_class)->child_added)
 
138
        (* ((SPObjectClass *) feComponentTransfer_parent_class)->child_added)(object, child, ref);
 
139
 
 
140
    sp_feComponentTransfer_children_modified(f);
 
141
    object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
 
142
}
 
143
 
 
144
 
 
145
/**
 
146
 * Callback for remove_child event.
 
147
 */
 
148
static void
 
149
sp_feComponentTransfer_remove_child(SPObject *object, Inkscape::XML::Node *child)
 
150
{
 
151
    SPFeComponentTransfer *f = SP_FECOMPONENTTRANSFER(object);
 
152
 
 
153
    if (((SPObjectClass *) feComponentTransfer_parent_class)->remove_child)
 
154
        (* ((SPObjectClass *) feComponentTransfer_parent_class)->remove_child)(object, child);
 
155
 
 
156
    sp_feComponentTransfer_children_modified(f);
 
157
    object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
 
158
}
 
159
 
 
160
/**
 
161
 * Drops any allocated memory.
 
162
 */
 
163
static void
 
164
sp_feComponentTransfer_release(SPObject *object)
 
165
{
 
166
    if (((SPObjectClass *) feComponentTransfer_parent_class)->release)
 
167
        ((SPObjectClass *) feComponentTransfer_parent_class)->release(object);
 
168
}
 
169
 
 
170
/**
 
171
 * Sets a specific value in the SPFeComponentTransfer.
 
172
 */
 
173
static void
 
174
sp_feComponentTransfer_set(SPObject *object, unsigned int key, gchar const *value)
 
175
{
 
176
    SPFeComponentTransfer *feComponentTransfer = SP_FECOMPONENTTRANSFER(object);
 
177
    (void)feComponentTransfer;
 
178
 
 
179
    switch(key) {
 
180
        /*DEAL WITH SETTING ATTRIBUTES HERE*/
 
181
        default:
 
182
            if (((SPObjectClass *) feComponentTransfer_parent_class)->set)
 
183
                ((SPObjectClass *) feComponentTransfer_parent_class)->set(object, key, value);
 
184
            break;
 
185
    }
 
186
 
 
187
}
 
188
 
 
189
/**
 
190
 * Receives update notifications.
 
191
 */
 
192
static void
 
193
sp_feComponentTransfer_update(SPObject *object, SPCtx *ctx, guint flags)
 
194
{
 
195
    if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
 
196
                 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
 
197
 
 
198
        /* do something to trigger redisplay, updates? */
 
199
 
 
200
    }
 
201
 
 
202
    if (((SPObjectClass *) feComponentTransfer_parent_class)->update) {
 
203
        ((SPObjectClass *) feComponentTransfer_parent_class)->update(object, ctx, flags);
 
204
    }
 
205
}
 
206
 
 
207
/**
 
208
 * Writes its settings to an incoming repr object, if any.
 
209
 */
 
210
static Inkscape::XML::Node *
 
211
sp_feComponentTransfer_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
 
212
{
 
213
    // Inkscape-only object, not copied during an "plain SVG" dump:
 
214
    if (flags & SP_OBJECT_WRITE_EXT) {
 
215
        if (repr) {
 
216
            // is this sane?
 
217
            //repr->mergeFrom(SP_OBJECT_REPR(object), "id");
 
218
        } else {
 
219
            repr = SP_OBJECT_REPR(object)->duplicate(doc);
 
220
        }
 
221
    }
 
222
 
 
223
    if (((SPObjectClass *) feComponentTransfer_parent_class)->write) {
 
224
        ((SPObjectClass *) feComponentTransfer_parent_class)->write(object, doc, repr, flags);
 
225
    }
 
226
 
 
227
    return repr;
 
228
}
 
229
 
 
230
static void sp_feComponentTransfer_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
 
231
    g_assert(primitive != NULL);
 
232
    g_assert(filter != NULL);
 
233
 
 
234
    SPFeComponentTransfer *sp_componenttransfer = SP_FECOMPONENTTRANSFER(primitive);
 
235
 
 
236
    int primitive_n = filter->add_primitive(NR::NR_FILTER_COMPONENTTRANSFER);
 
237
    NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
 
238
    NR::FilterComponentTransfer *nr_componenttransfer = dynamic_cast<NR::FilterComponentTransfer*>(nr_primitive);
 
239
    g_assert(nr_componenttransfer != NULL);
 
240
 
 
241
    sp_componenttransfer->renderer = nr_componenttransfer;
 
242
    sp_filter_primitive_renderer_common(primitive, nr_primitive);
 
243
 
 
244
 
 
245
    sp_feComponentTransfer_children_modified(sp_componenttransfer);    //do we need it?!
 
246
}
 
247
 
 
248
/*
 
249
  Local Variables:
 
250
  mode:c++
 
251
  c-file-style:"stroustrup"
 
252
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 
253
  indent-tabs-mode:nil
 
254
  fill-column:99
 
255
  End:
 
256
*/
 
257
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :