src/sp-missing-glyph.cpp

   1 #ifdef HAVE_CONFIG_H
   2 # include <config.h>
   3 #endif
   4
   5 #ifdef ENABLE_SVG_FONTS
   6 #define __SP_MISSING_GLYPH_C__
   7
   8 /*
   9  * SVG <missing-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  */
  18
  19 #include "xml/repr.h"
  20 #include "attributes.h"
  21 #include "sp-missing-glyph.h"
  22 #include "document.h"
  23 #include "helper-fns.h"
  24
  25 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc);
  26 static void sp_missing_glyph_init(SPMissingGlyph *glyph);
  27
  28 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
  29 static void sp_missing_glyph_release(SPObject *object);
  30 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value);
  31 static Inkscape::XML::Node *sp_missing_glyph_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
  32
  33 static SPObjectClass *parent_class;
  34
  35 GType sp_missing_glyph_get_type(void)
  36 {
  37     static GType type = 0;
  38
  39     if (!type) {
  40         GTypeInfo info = {
  41             sizeof(SPMissingGlyphClass),
  42             NULL,       /* base_init */
  43             NULL,       /* base_finalize */
  44             (GClassInitFunc) sp_missing_glyph_class_init,
  45             NULL,       /* class_finalize */
  46             NULL,       /* class_data */
  47             sizeof(SPMissingGlyph),
  48             16, /* n_preallocs */
  49             (GInstanceInitFunc) sp_missing_glyph_init,
  50             NULL,       /* value_table */
  51         };
  52         type = g_type_register_static(SP_TYPE_OBJECT, "SPMissingGlyph", &info, (GTypeFlags) 0);
  53     }
  54
  55     return type;
  56 }
  57
  58 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc)
  59 {
  60     SPObjectClass *sp_object_class = (SPObjectClass *) gc;
  61
  62     parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
  63
  64     sp_object_class->build = sp_missing_glyph_build;
  65     sp_object_class->release = sp_missing_glyph_release;
  66     sp_object_class->set = sp_missing_glyph_set;
  67     sp_object_class->write = sp_missing_glyph_write;
  68 }
  69
  70 static void sp_missing_glyph_init(SPMissingGlyph *glyph)
  71 {
  72 //TODO: correct these values:
  73     glyph->d = NULL;
  74     glyph->horiz_adv_x = 0;
  75     glyph->vert_origin_x = 0;
  76     glyph->vert_origin_y = 0;
  77     glyph->vert_adv_y = 0;
  78 }
  79
  80 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
  81 {
  82     if (((SPObjectClass *) (parent_class))->build) {
  83         ((SPObjectClass *) (parent_class))->build(object, document, repr);
  84     }
  85
  86     sp_object_read_attr(object, "d");
  87     sp_object_read_attr(object, "horiz-adv-x");
  88     sp_object_read_attr(object, "vert-origin-x");
  89     sp_object_read_attr(object, "vert-origin-y");
  90     sp_object_read_attr(object, "vert-adv-y");
  91 }
  92
  93 static void sp_missing_glyph_release(SPObject *object)
  94 {
  95     //SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
  96
  97     if (((SPObjectClass *) parent_class)->release) {
  98         ((SPObjectClass *) parent_class)->release(object);
  99     }
 100 }
 101
 102 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value)
 103 {
 104     SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 105     double number;
 106
 107     switch (key) {
 108         case SP_ATTR_D:
 109             if (glyph->d) g_free(glyph->d);
 110             glyph->d = g_strdup(value);
 111             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 112             break;
 113         case SP_ATTR_HORIZ_ADV_X:
 114             number = helperfns_read_number(value);
 115             if (number != glyph->horiz_adv_x){
 116                 glyph->horiz_adv_x = number;
 117                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 118             }
 119             break;
 120         case SP_ATTR_VERT_ORIGIN_X:
 121             number = helperfns_read_number(value);
 122             if (number != glyph->vert_origin_x){
 123                 glyph->vert_origin_x = number;
 124                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 125             }
 126             break;
 127         case SP_ATTR_VERT_ORIGIN_Y:
 128             number = helperfns_read_number(value);
 129             if (number != glyph->vert_origin_y){
 130                 glyph->vert_origin_y = number;
 131                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 132             }
 133             break;
 134         case SP_ATTR_VERT_ADV_Y:
 135             number = helperfns_read_number(value);
 136             if (number != glyph->vert_adv_y){
 137                 glyph->vert_adv_y = number;
 138                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 139             }
 140             break;
 141         default:
 142             if (((SPObjectClass *) (parent_class))->set) {
 143                 ((SPObjectClass *) (parent_class))->set(object, key, value);
 144             }
 145             break;
 146     }
 147 }
 148
 149 #define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
 150
 151 static Inkscape::XML::Node *sp_missing_glyph_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
 152 {
 153 //    SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 154
 155     if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
 156         repr = xml_doc->createElement("svg:glyph");
 157     }
 158
 159 /* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
 160     repr->setAttribute("d", glyph->d);
 161     sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
 162     sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
 163     sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
 164     sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
 165 */
 166     if (repr != SP_OBJECT_REPR(object)) {
 167         COPY_ATTR(repr, object->repr, "d");
 168         COPY_ATTR(repr, object->repr, "horiz-adv-x");
 169         COPY_ATTR(repr, object->repr, "vert-origin-x");
 170         COPY_ATTR(repr, object->repr, "vert-origin-y");
 171         COPY_ATTR(repr, object->repr, "vert-adv-y");
 172     }
 173
 174     if (((SPObjectClass *) (parent_class))->write) {
 175         ((SPObjectClass *) (parent_class))->write(object, xml_doc, repr, flags);
 176     }
 177
 178     return repr;
 179 }
 180 #endif //#ifdef ENABLE_SVG_FONTS
 181 /*
 182   Local Variables:
 183   mode:c++
 184   c-file-style:"stroustrup"
 185   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 186   indent-tabs-mode:nil
 187   fill-column:99
 188   End:
 189 */
 190 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :