src/sp-missing-glyph.cpp

   1 #include "config.h"
   2 #ifdef ENABLE_SVG_FONTS
   3 #define __SP_MISSING_GLYPH_C__
   4
   5 /*
   6  * SVG <missing-glyph> element implementation
   7  *
   8  * Author:
   9  *   Felipe C. da S. Sanches <felipe.sanches@gmail.com>
  10  *
  11  * Copyright (C) 2008, Felipe C. da S. Sanches
  12  *
  13  * Released under GNU GPL, read the file 'COPYING' for more information
  14  */
  15
  16 #include "xml/repr.h"
  17 #include "attributes.h"
  18 #include "sp-missing-glyph.h"
  19 #include "document.h"
  20 #include "helper-fns.h"
  21
  22 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc);
  23 static void sp_missing_glyph_init(SPMissingGlyph *glyph);
  24
  25 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
  26 static void sp_missing_glyph_release(SPObject *object);
  27 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value);
  28 static Inkscape::XML::Node *sp_missing_glyph_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
  29
  30 static SPObjectClass *parent_class;
  31
  32 GType sp_missing_glyph_get_type(void)
  33 {
  34     static GType type = 0;
  35
  36     if (!type) {
  37         GTypeInfo info = {
  38             sizeof(SPMissingGlyphClass),
  39             NULL,       /* base_init */
  40             NULL,       /* base_finalize */
  41             (GClassInitFunc) sp_missing_glyph_class_init,
  42             NULL,       /* class_finalize */
  43             NULL,       /* class_data */
  44             sizeof(SPMissingGlyph),
  45             16, /* n_preallocs */
  46             (GInstanceInitFunc) sp_missing_glyph_init,
  47             NULL,       /* value_table */
  48         };
  49         type = g_type_register_static(SP_TYPE_OBJECT, "SPMissingGlyph", &info, (GTypeFlags) 0);
  50     }
  51
  52     return type;
  53 }
  54
  55 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc)
  56 {
  57     SPObjectClass *sp_object_class = (SPObjectClass *) gc;
  58
  59     parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
  60
  61     sp_object_class->build = sp_missing_glyph_build;
  62     sp_object_class->release = sp_missing_glyph_release;
  63     sp_object_class->set = sp_missing_glyph_set;
  64     sp_object_class->write = sp_missing_glyph_write;
  65 }
  66
  67 static void sp_missing_glyph_init(SPMissingGlyph *glyph)
  68 {
  69 //TODO: correct these values:
  70     glyph->d = NULL;
  71     glyph->horiz_adv_x = 0;
  72     glyph->vert_origin_x = 0;
  73     glyph->vert_origin_y = 0;
  74     glyph->vert_adv_y = 0;
  75 }
  76
  77 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
  78 {
  79     if (((SPObjectClass *) (parent_class))->build) {
  80         ((SPObjectClass *) (parent_class))->build(object, document, repr);
  81     }
  82
  83     sp_object_read_attr(object, "d");
  84     sp_object_read_attr(object, "horiz-adv-x");
  85     sp_object_read_attr(object, "vert-origin-x");
  86     sp_object_read_attr(object, "vert-origin-y");
  87     sp_object_read_attr(object, "vert-adv-y");
  88 }
  89
  90 static void sp_missing_glyph_release(SPObject *object)
  91 {
  92     //SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
  93
  94     if (((SPObjectClass *) parent_class)->release) {
  95         ((SPObjectClass *) parent_class)->release(object);
  96     }
  97 }
  98
  99 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value)
 100 {
 101     SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 102     double number;
 103
 104     switch (key) {
 105         case SP_ATTR_D:
 106             if (glyph->d) g_free(glyph->d);
 107             glyph->d = g_strdup(value);
 108             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 109 g_warning("<missing-glyph>: SP_ATTR_D: %s", value);
 110             break;
 111         case SP_ATTR_HORIZ_ADV_X:
 112             number = helperfns_read_number(value);
 113             if (number != glyph->horiz_adv_x){
 114                 glyph->horiz_adv_x = number;
 115 g_warning("<missing-glyph>: SP_ATTR_HORIZ_ADV_X: %f", number);
 116                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 117             }
 118             break;
 119         case SP_ATTR_VERT_ORIGIN_X:
 120             number = helperfns_read_number(value);
 121             if (number != glyph->vert_origin_x){
 122                 glyph->vert_origin_x = number;
 123 g_warning("<missing-glyph>: SP_ATTR_VERT_ORIGIN_X: %f", 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 g_warning("<missing-glyph>: SP_ATTR_VERT_ORIGIN_Y: %f", number);
 132                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 133             }
 134             break;
 135         case SP_ATTR_VERT_ADV_Y:
 136             number = helperfns_read_number(value);
 137             if (number != glyph->vert_adv_y){
 138                 glyph->vert_adv_y = number;
 139 g_warning("<missing-glyph>: SP_ATTR_VERT_ADV_Y: %f", number);
 140                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 141             }
 142             break;
 143         default:
 144             if (((SPObjectClass *) (parent_class))->set) {
 145                 ((SPObjectClass *) (parent_class))->set(object, key, value);
 146             }
 147             break;
 148     }
 149 }
 150
 151 #define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
 152
 153 static Inkscape::XML::Node *sp_missing_glyph_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
 154 {
 155 //    SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 156
 157     if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
 158         repr = xml_doc->createElement("svg:glyph");
 159     }
 160
 161 /* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
 162     repr->setAttribute("d", glyph->d);
 163     sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
 164     sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
 165     sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
 166     sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
 167 */
 168     if (repr != SP_OBJECT_REPR(object)) {
 169         COPY_ATTR(repr, object->repr, "d");
 170         COPY_ATTR(repr, object->repr, "horiz-adv-x");
 171         COPY_ATTR(repr, object->repr, "vert-origin-x");
 172         COPY_ATTR(repr, object->repr, "vert-origin-y");
 173         COPY_ATTR(repr, object->repr, "vert-adv-y");
 174     }
 175
 176     if (((SPObjectClass *) (parent_class))->write) {
 177         ((SPObjectClass *) (parent_class))->write(object, xml_doc, repr, flags);
 178     }
 179
 180     return repr;
 181 }
 182 #endif //#ifdef ENABLE_SVG_FONTS
 183 /*
 184   Local Variables:
 185   mode:c++
 186   c-file-style:"stroustrup"
 187   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 188   indent-tabs-mode:nil
 189   fill-column:99
 190   End:
 191 */
 192 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :