src/sp-missing-glyph.cpp

   1 #define __SP_ANCHOR_C__
   2
   3 /*
   4  * SVG <missing-glyph> element implementation
   5  *
   6  * Author:
   7  *   Felipe C. da S. Sanches <felipe.sanches@gmail.com>
   8  *
   9  * Copyright (C) 2008, Felipe C. da S. Sanches
  10  *
  11  * Released under GNU GPL, read the file 'COPYING' for more information
  12  */
  13
  14 #include "xml/repr.h"
  15 #include "attributes.h"
  16 #include "sp-missing-glyph.h"
  17 #include "document.h"
  18 #include "helper-fns.h"
  19
  20 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc);
  21 static void sp_missing_glyph_init(SPMissingGlyph *glyph);
  22
  23 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
  24 static void sp_missing_glyph_release(SPObject *object);
  25 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value);
  26 static Inkscape::XML::Node *sp_missing_glyph_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
  27
  28 static SPObjectClass *parent_class;
  29
  30 GType sp_missing_glyph_get_type(void)
  31 {
  32     static GType type = 0;
  33
  34     if (!type) {
  35         GTypeInfo info = {
  36             sizeof(SPMissingGlyphClass),
  37             NULL,       /* base_init */
  38             NULL,       /* base_finalize */
  39             (GClassInitFunc) sp_missing_glyph_class_init,
  40             NULL,       /* class_finalize */
  41             NULL,       /* class_data */
  42             sizeof(SPMissingGlyph),
  43             16, /* n_preallocs */
  44             (GInstanceInitFunc) sp_missing_glyph_init,
  45             NULL,       /* value_table */
  46         };
  47         type = g_type_register_static(SP_TYPE_OBJECT, "SPMissingGlyph", &info, (GTypeFlags) 0);
  48     }
  49
  50     return type;
  51 }
  52
  53 static void sp_missing_glyph_class_init(SPMissingGlyphClass *gc)
  54 {
  55     SPObjectClass *sp_object_class = (SPObjectClass *) gc;
  56
  57     parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
  58
  59     sp_object_class->build = sp_missing_glyph_build;
  60     sp_object_class->release = sp_missing_glyph_release;
  61     sp_object_class->set = sp_missing_glyph_set;
  62     sp_object_class->write = sp_missing_glyph_write;
  63 }
  64
  65 static void sp_missing_glyph_init(SPMissingGlyph *glyph)
  66 {
  67 //TODO: correct these values:
  68     glyph->d = NULL;
  69     glyph->horiz_adv_x = 0;
  70     glyph->vert_origin_x = 0;
  71     glyph->vert_origin_y = 0;
  72     glyph->vert_adv_y = 0;
  73 }
  74
  75 static void sp_missing_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
  76 {
  77     if (((SPObjectClass *) (parent_class))->build) {
  78         ((SPObjectClass *) (parent_class))->build(object, document, repr);
  79     }
  80
  81     sp_object_read_attr(object, "d");
  82     sp_object_read_attr(object, "horiz-adv-x");
  83     sp_object_read_attr(object, "vert-origin-x");
  84     sp_object_read_attr(object, "vert-origin-y");
  85     sp_object_read_attr(object, "vert-adv-y");
  86 }
  87
  88 static void sp_missing_glyph_release(SPObject *object)
  89 {
  90     //SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
  91
  92     if (((SPObjectClass *) parent_class)->release) {
  93         ((SPObjectClass *) parent_class)->release(object);
  94     }
  95 }
  96
  97 static void sp_missing_glyph_set(SPObject *object, unsigned int key, const gchar *value)
  98 {
  99     SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 100     double number;
 101
 102     switch (key) {
 103         case SP_ATTR_D:
 104             if (glyph->d) g_free(glyph->d);
 105             glyph->d = g_strdup(value);
 106             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 107 g_warning("<missing-glyph>: SP_ATTR_D: %s", value);
 108             break;
 109         case SP_ATTR_HORIZ_ADV_X:
 110             number = helperfns_read_number(value);
 111             if (number != glyph->horiz_adv_x){
 112                 glyph->horiz_adv_x = number;
 113 g_warning("<missing-glyph>: SP_ATTR_HORIZ_ADV_X: %f", number);
 114                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 115             }
 116             break;
 117         case SP_ATTR_VERT_ORIGIN_X:
 118             number = helperfns_read_number(value);
 119             if (number != glyph->vert_origin_x){
 120                 glyph->vert_origin_x = number;
 121 g_warning("<missing-glyph>: SP_ATTR_VERT_ORIGIN_X: %f", number);
 122                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 123             }
 124             break;
 125         case SP_ATTR_VERT_ORIGIN_Y:
 126             number = helperfns_read_number(value);
 127             if (number != glyph->vert_origin_y){
 128                 glyph->vert_origin_y = number;
 129 g_warning("<missing-glyph>: SP_ATTR_VERT_ORIGIN_Y: %f", number);
 130                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 131             }
 132             break;
 133         case SP_ATTR_VERT_ADV_Y:
 134             number = helperfns_read_number(value);
 135             if (number != glyph->vert_adv_y){
 136                 glyph->vert_adv_y = number;
 137 g_warning("<missing-glyph>: SP_ATTR_VERT_ADV_Y: %f", 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::Node *repr, guint flags)
 152 {
 153 //    SPMissingGlyph *glyph = SP_MISSING_GLYPH(object);
 154
 155     if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
 156         Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_OBJECT_DOCUMENT(object));
 157         repr = xml_doc->createElement("svg:glyph");
 158     }
 159
 160 /* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
 161     repr->setAttribute("d", glyph->d);
 162     sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
 163     sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
 164     sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
 165     sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
 166 */
 167     if (repr != SP_OBJECT_REPR(object)) {
 168         COPY_ATTR(repr, object->repr, "d");
 169         COPY_ATTR(repr, object->repr, "horiz-adv-x");
 170         COPY_ATTR(repr, object->repr, "vert-origin-x");
 171         COPY_ATTR(repr, object->repr, "vert-origin-y");
 172         COPY_ATTR(repr, object->repr, "vert-adv-y");
 173     }
 174
 175     if (((SPObjectClass *) (parent_class))->write) {
 176         ((SPObjectClass *) (parent_class))->write(object, repr, flags);
 177     }
 178
 179     return repr;
 180 }
 181
 182 /*
 183   Local Variables:
 184   mode:c++
 185   c-file-style:"stroustrup"
 186   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 187   indent-tabs-mode:nil
 188   fill-column:99
 189   End:
 190 */
 191 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :