Code

small cleanup in src/trace (warnings and trailing spaces)
[inkscape.git] / src / sp-glyph.cpp
1 #ifdef HAVE_CONFIG_H
2 # include <config.h>
3 #endif
5 #ifdef ENABLE_SVG_FONTS
6 #define __SP_GLYPH_C__
8 /*
9  * SVG <glyph> element implementation
10  *
11  * Author:
12  *   Felipe C. da S. Sanches <felipe.sanches@gmail.com>
13  *
14  * Copyright (C) 2008, Felipe C. da S. Sanches
15  *
16  * Released under GNU GPL, read the file 'COPYING' for more information
17  */
19 #include "xml/repr.h"
20 #include "attributes.h"
21 #include "sp-glyph.h"
22 #include "document.h"
23 #include "helper-fns.h"
25 static void sp_glyph_class_init(SPGlyphClass *gc);
26 static void sp_glyph_init(SPGlyph *glyph);
28 static void sp_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
29 static void sp_glyph_release(SPObject *object);
30 static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value);
31 static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
32 static void sp_glyph_update(SPObject *object, SPCtx *ctx, guint flags);
34 static SPObjectClass *parent_class;
36 GType sp_glyph_get_type(void)
37 {
38     static GType type = 0;
40     if (!type) {
41         GTypeInfo info = {
42             sizeof(SPGlyphClass),
43             NULL,       /* base_init */
44             NULL,       /* base_finalize */
45             (GClassInitFunc) sp_glyph_class_init,
46             NULL,       /* class_finalize */
47             NULL,       /* class_data */
48             sizeof(SPGlyph),
49             16, /* n_preallocs */
50             (GInstanceInitFunc) sp_glyph_init,
51             NULL,       /* value_table */
52         };
53         type = g_type_register_static(SP_TYPE_OBJECT, "SPGlyph", &info, (GTypeFlags) 0);
54     }
56     return type;
57 }
59 static void sp_glyph_class_init(SPGlyphClass *gc)
60 {
61     SPObjectClass *sp_object_class = (SPObjectClass *) gc;
63     parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
65     sp_object_class->build = sp_glyph_build;
66     sp_object_class->release = sp_glyph_release;
67     sp_object_class->set = sp_glyph_set;
68     sp_object_class->write = sp_glyph_write;
69     sp_object_class->update = sp_glyph_update;
70 }
72 static void sp_glyph_init(SPGlyph *glyph)
73 {
74 //TODO: correct these values:
76     new (&glyph->unicode) Glib::ustring();
77     new (&glyph->glyph_name) Glib::ustring();
78     glyph->d = NULL;
79     glyph->orientation = GLYPH_ORIENTATION_BOTH;
80     glyph->arabic_form = GLYPH_ARABIC_FORM_INITIAL;
81     glyph->lang = NULL;
82     glyph->horiz_adv_x = 0;
83     glyph->vert_origin_x = 0;
84     glyph->vert_origin_y = 0;
85     glyph->vert_adv_y = 0;
86 }
88 static void sp_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
89 {
90     if (((SPObjectClass *) (parent_class))->build) {
91         ((SPObjectClass *) (parent_class))->build(object, document, repr);
92     }
94     sp_object_read_attr(object, "unicode");
95     sp_object_read_attr(object, "glyph-name");
96     sp_object_read_attr(object, "d");
97     sp_object_read_attr(object, "orientation");
98     sp_object_read_attr(object, "arabic-form");
99     sp_object_read_attr(object, "lang");
100     sp_object_read_attr(object, "horiz-adv-x");
101     sp_object_read_attr(object, "vert-origin-x");
102     sp_object_read_attr(object, "vert-origin-y");
103     sp_object_read_attr(object, "vert-adv-y");
106 static void sp_glyph_release(SPObject *object)
108     //SPGlyph *glyph = SP_GLYPH(object);
110     if (((SPObjectClass *) parent_class)->release) {
111         ((SPObjectClass *) parent_class)->release(object);
112     }
115 static glyphArabicForm sp_glyph_read_arabic_form(gchar const *value){
116     if (!value) return GLYPH_ARABIC_FORM_INITIAL; //TODO: verify which is the default default (for me, the spec is not clear)
117     switch(value[0]){
118         case 'i':
119             if (strncmp(value, "initial", 7) == 0) return GLYPH_ARABIC_FORM_INITIAL;
120             if (strncmp(value, "isolated", 8) == 0) return GLYPH_ARABIC_FORM_ISOLATED;
121             break;
122         case 'm':
123             if (strncmp(value, "medial", 6) == 0) return GLYPH_ARABIC_FORM_MEDIAL;
124             break;
125         case 't':
126             if (strncmp(value, "terminal", 8) == 0) return GLYPH_ARABIC_FORM_TERMINAL;
127             break;
128     }
129     return GLYPH_ARABIC_FORM_INITIAL; //TODO: VERIFY DEFAULT!
132 static glyphOrientation sp_glyph_read_orientation(gchar const *value){
133     if (!value) return GLYPH_ORIENTATION_BOTH;
134     switch(value[0]){
135         case 'h':
136             return GLYPH_ORIENTATION_HORIZONTAL;
137             break;
138         case 'v':
139             return GLYPH_ORIENTATION_VERTICAL;
140             break;
141     }
142 //ERROR? TODO: VERIFY PROPER ERROR HANDLING
143     return GLYPH_ORIENTATION_BOTH;
146 static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value)
148     SPGlyph *glyph = SP_GLYPH(object);
149     double number;
150     glyphOrientation orient;
151     glyphArabicForm form;
153     switch (key) {
154         case SP_ATTR_UNICODE:
155             glyph->unicode.clear();
156             if (value) glyph->unicode.append(value);
157             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
158             break;
159         case SP_ATTR_GLYPH_NAME:
160             glyph->glyph_name.clear();
161             if (value) glyph->glyph_name.append(value);
162             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
163             break;
164         case SP_ATTR_D:
165             if (glyph->d) g_free(glyph->d);
166             glyph->d = g_strdup(value);
167             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
168             break;
169         case SP_ATTR_ORIENTATION:
170             orient = sp_glyph_read_orientation(value);
171             if (glyph->orientation != orient){
172                 glyph->orientation = orient;
173                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
174             }
175             break;
176         case SP_ATTR_ARABIC_FORM:
177             form = sp_glyph_read_arabic_form(value);
178             if (glyph->arabic_form != form){
179                 glyph->arabic_form = form;
180                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
181             }
182             break;
183         case SP_ATTR_LANG:
184             if (glyph->lang) g_free(glyph->lang);
185             glyph->lang = g_strdup(value);
186             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
187             break;
188         case SP_ATTR_HORIZ_ADV_X:
189             number = helperfns_read_number(value);
190             if (number != glyph->horiz_adv_x){
191                 glyph->horiz_adv_x = number;
192                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
193             }
194             break;
195         case SP_ATTR_VERT_ORIGIN_X:
196             number = helperfns_read_number(value);
197             if (number != glyph->vert_origin_x){
198                 glyph->vert_origin_x = number;
199                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
200             }
201             break;
202         case SP_ATTR_VERT_ORIGIN_Y:
203             number = helperfns_read_number(value);
204             if (number != glyph->vert_origin_y){
205                 glyph->vert_origin_y = number;
206                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
207             }
208             break;
209         case SP_ATTR_VERT_ADV_Y:
210             number = helperfns_read_number(value);
211             if (number != glyph->vert_adv_y){
212                 glyph->vert_adv_y = number;
213                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
214             }
215             break;
216         default:
217             if (((SPObjectClass *) (parent_class))->set) {
218                 ((SPObjectClass *) (parent_class))->set(object, key, value);
219             }
220             break;
221     }
224 /**
225  *  * Receives update notifications.
226  *   */
227 static void
228 sp_glyph_update(SPObject *object, SPCtx *ctx, guint flags)
230     SPGlyph *glyph = SP_GLYPH(object);
231     (void)glyph;
233     if (flags & SP_OBJECT_MODIFIED_FLAG) {
234         /* do something to trigger redisplay, updates? */
235             sp_object_read_attr(object, "unicode");
236             sp_object_read_attr(object, "glyph-name");
237             sp_object_read_attr(object, "d");
238             sp_object_read_attr(object, "orientation");
239             sp_object_read_attr(object, "arabic-form");
240             sp_object_read_attr(object, "lang");
241             sp_object_read_attr(object, "horiz-adv-x");
242             sp_object_read_attr(object, "vert-origin-x");
243             sp_object_read_attr(object, "vert-origin-y");
244             sp_object_read_attr(object, "vert-adv-y");
245     }
247     if (((SPObjectClass *) parent_class)->update) {
248         ((SPObjectClass *) parent_class)->update(object, ctx, flags);
249     }
252 #define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
254 static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
256 //    SPGlyph *glyph = SP_GLYPH(object);
258     if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
259         repr = xml_doc->createElement("svg:glyph");
260     }
262 /* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
263     repr->setAttribute("unicode", glyph->unicode);
264     repr->setAttribute("glyph-name", glyph->glyph_name);
265     repr->setAttribute("d", glyph->d);
266     sp_repr_set_svg_double(repr, "orientation", (double) glyph->orientation);
267     sp_repr_set_svg_double(repr, "arabic-form", (double) glyph->arabic_form);
268     repr->setAttribute("lang", glyph->lang);
269     sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
270     sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
271     sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
272     sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
273 */
274     if (repr != SP_OBJECT_REPR(object)) {
275         COPY_ATTR(repr, object->repr, "unicode");
276         COPY_ATTR(repr, object->repr, "glyph-name");
277         COPY_ATTR(repr, object->repr, "d");
278         COPY_ATTR(repr, object->repr, "orientation");
279         COPY_ATTR(repr, object->repr, "arabic-form");
280         COPY_ATTR(repr, object->repr, "lang");
281         COPY_ATTR(repr, object->repr, "horiz-adv-x");
282         COPY_ATTR(repr, object->repr, "vert-origin-x");
283         COPY_ATTR(repr, object->repr, "vert-origin-y");
284         COPY_ATTR(repr, object->repr, "vert-adv-y");
285     }
287     if (((SPObjectClass *) (parent_class))->write) {
288         ((SPObjectClass *) (parent_class))->write(object, xml_doc, repr, flags);
289     }
291     return repr;
293 #endif //#ifdef ENABLE_SVG_FONTS
294 /*
295   Local Variables:
296   mode:c++
297   c-file-style:"stroustrup"
298   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
299   indent-tabs-mode:nil
300   fill-column:99
301   End:
302 */
303 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :