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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_SVG_FONTS
#define __SP_GLYPH_C__
/*
* SVG <glyph> element implementation
*
* 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.h"
#include "document.h"
static void sp_glyph_class_init(SPGlyphClass *gc);
static void sp_glyph_init(SPGlyph *glyph);
static void sp_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_glyph_release(SPObject *object);
static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value);
static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static void sp_glyph_update(SPObject *object, SPCtx *ctx, guint flags);
static SPObjectClass *parent_class;
GType sp_glyph_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPGlyphClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_glyph_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPGlyph),
16, /* n_preallocs */
(GInstanceInitFunc) sp_glyph_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPGlyph", &info, (GTypeFlags) 0);
}
return type;
}
static void sp_glyph_class_init(SPGlyphClass *gc)
{
SPObjectClass *sp_object_class = (SPObjectClass *) gc;
parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
sp_object_class->build = sp_glyph_build;
sp_object_class->release = sp_glyph_release;
sp_object_class->set = sp_glyph_set;
sp_object_class->write = sp_glyph_write;
sp_object_class->update = sp_glyph_update;
}
static void sp_glyph_init(SPGlyph *glyph)
{
//TODO: correct these values:
new (&glyph->unicode) Glib::ustring();
new (&glyph->glyph_name) Glib::ustring();
glyph->d = NULL;
glyph->orientation = GLYPH_ORIENTATION_BOTH;
glyph->arabic_form = GLYPH_ARABIC_FORM_INITIAL;
glyph->lang = NULL;
glyph->horiz_adv_x = 0;
glyph->vert_origin_x = 0;
glyph->vert_origin_y = 0;
glyph->vert_adv_y = 0;
}
static void sp_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
if (((SPObjectClass *) (parent_class))->build) {
((SPObjectClass *) (parent_class))->build(object, document, repr);
}
object->readAttr( "unicode" );
object->readAttr( "glyph-name" );
object->readAttr( "d" );
object->readAttr( "orientation" );
object->readAttr( "arabic-form" );
object->readAttr( "lang" );
object->readAttr( "horiz-adv-x" );
object->readAttr( "vert-origin-x" );
object->readAttr( "vert-origin-y" );
object->readAttr( "vert-adv-y" );
}
static void sp_glyph_release(SPObject *object)
{
//SPGlyph *glyph = SP_GLYPH(object);
if (((SPObjectClass *) parent_class)->release) {
((SPObjectClass *) parent_class)->release(object);
}
}
static glyphArabicForm sp_glyph_read_arabic_form(gchar const *value){
if (!value) return GLYPH_ARABIC_FORM_INITIAL; //TODO: verify which is the default default (for me, the spec is not clear)
switch(value[0]){
case 'i':
if (strncmp(value, "initial", 7) == 0) return GLYPH_ARABIC_FORM_INITIAL;
if (strncmp(value, "isolated", 8) == 0) return GLYPH_ARABIC_FORM_ISOLATED;
break;
case 'm':
if (strncmp(value, "medial", 6) == 0) return GLYPH_ARABIC_FORM_MEDIAL;
break;
case 't':
if (strncmp(value, "terminal", 8) == 0) return GLYPH_ARABIC_FORM_TERMINAL;
break;
}
return GLYPH_ARABIC_FORM_INITIAL; //TODO: VERIFY DEFAULT!
}
static glyphOrientation sp_glyph_read_orientation(gchar const *value){
if (!value) return GLYPH_ORIENTATION_BOTH;
switch(value[0]){
case 'h':
return GLYPH_ORIENTATION_HORIZONTAL;
break;
case 'v':
return GLYPH_ORIENTATION_VERTICAL;
break;
}
//ERROR? TODO: VERIFY PROPER ERROR HANDLING
return GLYPH_ORIENTATION_BOTH;
}
static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value)
{
SPGlyph *glyph = SP_GLYPH(object);
switch (key) {
case SP_ATTR_UNICODE:
{
glyph->unicode.clear();
if (value) glyph->unicode.append(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_GLYPH_NAME:
{
glyph->glyph_name.clear();
if (value) glyph->glyph_name.append(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_D:
{
if (glyph->d) g_free(glyph->d);
glyph->d = g_strdup(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_ORIENTATION:
{
glyphOrientation orient = sp_glyph_read_orientation(value);
if (glyph->orientation != orient){
glyph->orientation = orient;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
case SP_ATTR_ARABIC_FORM:
{
glyphArabicForm form = sp_glyph_read_arabic_form(value);
if (glyph->arabic_form != form){
glyph->arabic_form = form;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
case SP_ATTR_LANG:
{
if (glyph->lang) g_free(glyph->lang);
glyph->lang = g_strdup(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_HORIZ_ADV_X:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyph->horiz_adv_x){
glyph->horiz_adv_x = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
case SP_ATTR_VERT_ORIGIN_X:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyph->vert_origin_x){
glyph->vert_origin_x = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
case SP_ATTR_VERT_ORIGIN_Y:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyph->vert_origin_y){
glyph->vert_origin_y = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
case SP_ATTR_VERT_ADV_Y:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyph->vert_adv_y){
glyph->vert_adv_y = 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_update(SPObject *object, SPCtx *ctx, guint flags)
{
SPGlyph *glyph = SP_GLYPH(object);
(void)glyph;
if (flags & SP_OBJECT_MODIFIED_FLAG) {
/* do something to trigger redisplay, updates? */
object->readAttr( "unicode" );
object->readAttr( "glyph-name" );
object->readAttr( "d" );
object->readAttr( "orientation" );
object->readAttr( "arabic-form" );
object->readAttr( "lang" );
object->readAttr( "horiz-adv-x" );
object->readAttr( "vert-origin-x" );
object->readAttr( "vert-origin-y" );
object->readAttr( "vert-adv-y" );
}
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_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
// SPGlyph *glyph = SP_GLYPH(object);
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
repr = xml_doc->createElement("svg:glyph");
}
/* 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(), "unicode");
COPY_ATTR(repr, object->getRepr(), "glyph-name");
COPY_ATTR(repr, object->getRepr(), "d");
COPY_ATTR(repr, object->getRepr(), "orientation");
COPY_ATTR(repr, object->getRepr(), "arabic-form");
COPY_ATTR(repr, object->getRepr(), "lang");
COPY_ATTR(repr, object->getRepr(), "horiz-adv-x");
COPY_ATTR(repr, object->getRepr(), "vert-origin-x");
COPY_ATTR(repr, object->getRepr(), "vert-origin-y");
COPY_ATTR(repr, object->getRepr(), "vert-adv-y");
}
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 :
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