1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_SVG_FONTS
#define __SP_ANCHOR_C__
/*
* SVG <hkern> and <vkern> elements implementation
* W3C SVG 1.1 spec, page 476, section 20.7
*
* Author:
* Felipe C. da S. Sanches <juca@members.fsf.org>
* Abhishek Sharma
*
* Copyright (C) 2008, Felipe C. da S. Sanches
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "xml/repr.h"
#include "attributes.h"
#include "sp-glyph-kerning.h"
#include "document.h"
#include <string>
static void sp_glyph_kerning_class_init(SPGlyphKerningClass *gc);
static void sp_glyph_kerning_init(SPGlyphKerning *glyph);
static void sp_glyph_kerning_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_glyph_kerning_release(SPObject *object);
static void sp_glyph_kerning_set(SPObject *object, unsigned int key, const gchar *value);
static Inkscape::XML::Node *sp_glyph_kerning_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static void sp_glyph_kerning_update(SPObject *object, SPCtx *ctx, guint flags);
static SPObjectClass *parent_class;
GType sp_glyph_kerning_h_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPGlyphKerningClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_glyph_kerning_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPHkern),
16, /* n_preallocs */
(GInstanceInitFunc) sp_glyph_kerning_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPHkern", &info, (GTypeFlags) 0);
}
return type;
}
GType sp_glyph_kerning_v_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPGlyphKerningClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_glyph_kerning_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPVkern),
16, /* n_preallocs */
(GInstanceInitFunc) sp_glyph_kerning_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPVkern", &info, (GTypeFlags) 0);
}
return type;
}
static void sp_glyph_kerning_class_init(SPGlyphKerningClass *gc)
{
SPObjectClass *sp_object_class = (SPObjectClass *) gc;
parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
sp_object_class->build = sp_glyph_kerning_build;
sp_object_class->release = sp_glyph_kerning_release;
sp_object_class->set = sp_glyph_kerning_set;
sp_object_class->write = sp_glyph_kerning_write;
sp_object_class->update = sp_glyph_kerning_update;
}
static void sp_glyph_kerning_init(SPGlyphKerning *glyph)
{
//TODO: correct these values:
glyph->u1 = NULL;
glyph->g1 = NULL;
glyph->u2 = NULL;
glyph->g2 = NULL;
glyph->k = 0;
}
static void sp_glyph_kerning_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
if (((SPObjectClass *) (parent_class))->build) {
((SPObjectClass *) (parent_class))->build(object, document, repr);
}
object->readAttr( "u1" );
object->readAttr( "g1" );
object->readAttr( "u2" );
object->readAttr( "g2" );
object->readAttr( "k" );
}
static void sp_glyph_kerning_release(SPObject *object)
{
//SPGlyphKerning *glyph = SP_GLYPH_KERNING(object);
if (((SPObjectClass *) parent_class)->release) {
((SPObjectClass *) parent_class)->release(object);
}
}
GlyphNames::GlyphNames(const gchar* value){
if (value) this->names = strdup(value);
}
GlyphNames::~GlyphNames(){
if (this->names) g_free(this->names);
}
bool GlyphNames::contains(const char* name){
if (!(this->names) || !name) return false;
std::istringstream is(this->names);
std::string str;
std::string s(name);
while (is >> str){
if (str == s) return true;
}
return false;
}
static void sp_glyph_kerning_set(SPObject *object, unsigned int key, const gchar *value)
{
SPGlyphKerning * glyphkern = (SPGlyphKerning*) object; //even if it is a VKern this will work. I did it this way just to avoind warnings.
switch (key) {
case SP_ATTR_U1:
{
if (glyphkern->u1) {
delete glyphkern->u1;
}
glyphkern->u1 = new UnicodeRange(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_U2:
{
if (glyphkern->u2) {
delete glyphkern->u2;
}
glyphkern->u2 = new UnicodeRange(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_G1:
{
if (glyphkern->g1) {
delete glyphkern->g1;
}
glyphkern->g1 = new GlyphNames(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_G2:
{
if (glyphkern->g2) {
delete glyphkern->g2;
}
glyphkern->g2 = new GlyphNames(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_K:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyphkern->k){
glyphkern->k = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
default:
{
if (((SPObjectClass *) (parent_class))->set) {
((SPObjectClass *) (parent_class))->set(object, key, value);
}
break;
}
}
}
/**
* * Receives update notifications.
* */
static void
sp_glyph_kerning_update(SPObject *object, SPCtx *ctx, guint flags)
{
SPGlyphKerning *glyph = (SPGlyphKerning *)object;
(void)glyph;
if (flags & SP_OBJECT_MODIFIED_FLAG) {
/* do something to trigger redisplay, updates? */
object->readAttr( "u1" );
object->readAttr( "u2" );
object->readAttr( "g2" );
object->readAttr( "k" );
}
if (((SPObjectClass *) parent_class)->update) {
((SPObjectClass *) parent_class)->update(object, ctx, flags);
}
}
#define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
static Inkscape::XML::Node *sp_glyph_kerning_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
// SPGlyphKerning *glyph = SP_GLYPH_KERNING(object);
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
repr = xml_doc->createElement("svg:glyphkerning");//fix this!
}
/* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
repr->setAttribute("unicode", glyph->unicode);
repr->setAttribute("glyph-name", glyph->glyph_name);
repr->setAttribute("d", glyph->d);
sp_repr_set_svg_double(repr, "orientation", (double) glyph->orientation);
sp_repr_set_svg_double(repr, "arabic-form", (double) glyph->arabic_form);
repr->setAttribute("lang", glyph->lang);
sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
*/
if (repr != object->getRepr()) {
// All the COPY_ATTR functions below use
// XML Tree directly, while they shouldn't.
COPY_ATTR(repr, object->getRepr(), "u1");
COPY_ATTR(repr, object->getRepr(), "g1");
COPY_ATTR(repr, object->getRepr(), "u2");
COPY_ATTR(repr, object->getRepr(), "g2");
COPY_ATTR(repr, object->getRepr(), "k");
}
if (((SPObjectClass *) (parent_class))->write) {
((SPObjectClass *) (parent_class))->write(object, xml_doc, repr, flags);
}
return repr;
}
#endif //#ifdef ENABLE_SVG_FONTS
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
|