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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_SVG_FONTS
/*
* SVG <font> element implementation
*
* Author:
* Felipe C. da S. Sanches <felipe.sanches@gmail.com>
*
* 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-font.h"
#include "sp-glyph.h"
#include "sp-missing-glyph.h"
#include "document.h"
#include "helper-fns.h"
#include "display/nr-svgfonts.h"
static void sp_font_class_init(SPFontClass *fc);
static void sp_font_init(SPFont *font);
static void sp_font_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_font_release(SPObject *object);
static void sp_font_set(SPObject *object, unsigned int key, const gchar *value);
static Inkscape::XML::Node *sp_font_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static void sp_font_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
static void sp_font_remove_child(SPObject *object, Inkscape::XML::Node *child);
static void sp_font_update(SPObject *object, SPCtx *ctx, guint flags);
// static gchar *sp_font_description(SPItem *item);
static SPObjectClass *parent_class;
GType sp_font_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPFontClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_font_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPFont),
16, /* n_preallocs */
(GInstanceInitFunc) sp_font_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPFont", &info, (GTypeFlags) 0);
}
return type;
}
static void sp_font_class_init(SPFontClass *fc)
{
SPObjectClass *sp_object_class = (SPObjectClass *) fc;
parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
sp_object_class->build = sp_font_build;
sp_object_class->release = sp_font_release;
sp_object_class->set = sp_font_set;
sp_object_class->write = sp_font_write;
sp_object_class->child_added = sp_font_child_added;
sp_object_class->remove_child = sp_font_remove_child;
sp_object_class->update = sp_font_update;
}
static void sp_font_init(SPFont *font)
{
font->horiz_origin_x = 0;
font->horiz_origin_y = 0;
font->horiz_adv_x = 0;
//I think we should have extra stuff here and in the set method in order to set default value as specified at http://www.w3.org/TR/SVG/fonts.html
font->vert_origin_x = 0;
font->vert_origin_y = 0;
font->vert_adv_y = 0;
}
static void sp_font_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
if (((SPObjectClass *) (parent_class))->build) {
((SPObjectClass *) (parent_class))->build(object, document, repr);
}
sp_object_read_attr(object, "horiz-origin-x");
sp_object_read_attr(object, "horiz-origin-y");
sp_object_read_attr(object, "horiz-adv-x");
sp_object_read_attr(object, "vert-origin-x");
sp_object_read_attr(object, "vert-origin-y");
sp_object_read_attr(object, "vert-adv-y");
sp_document_add_resource(document, "font", object);
}
static void sp_font_children_modified(SPFont */*sp_font*/)
{
}
/**
* Callback for child_added event.
*/
static void
sp_font_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
{
SPFont *f = SP_FONT(object);
if (((SPObjectClass *) parent_class)->child_added)
(* ((SPObjectClass *) parent_class)->child_added)(object, child, ref);
sp_font_children_modified(f);
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
/**
* Callback for remove_child event.
*/
static void
sp_font_remove_child(SPObject *object, Inkscape::XML::Node *child)
{
SPFont *f = SP_FONT(object);
if (((SPObjectClass *) parent_class)->remove_child)
(* ((SPObjectClass *) parent_class)->remove_child)(object, child);
sp_font_children_modified(f);
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
static void sp_font_release(SPObject *object)
{
//SPFont *font = SP_FONT(object);
sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "font", object);
if (((SPObjectClass *) parent_class)->release) {
((SPObjectClass *) parent_class)->release(object);
}
}
static void sp_font_set(SPObject *object, unsigned int key, const gchar *value)
{
SPFont *font = SP_FONT(object);
double number;
switch (key) {
case SP_ATTR_HORIZ_ORIGIN_X:
number = helperfns_read_number(value);
if (number != font->horiz_origin_x){
font->horiz_origin_x = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_HORIZ_ORIGIN_Y:
number = helperfns_read_number(value);
if (number != font->horiz_origin_y){
font->horiz_origin_y = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_HORIZ_ADV_X:
number = helperfns_read_number(value);
if (number != font->horiz_adv_x){
font->horiz_adv_x = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_VERT_ORIGIN_X:
number = helperfns_read_number(value);
if (number != font->vert_origin_x){
font->vert_origin_x = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_VERT_ORIGIN_Y:
number = helperfns_read_number(value);
if (number != font->vert_origin_y){
font->vert_origin_y = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_VERT_ADV_Y:
number = helperfns_read_number(value);
if (number != font->vert_adv_y){
font->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_font_update(SPObject *object, SPCtx *ctx, guint flags)
{
if (flags & (SP_OBJECT_MODIFIED_FLAG)) {
sp_object_read_attr(object, "horiz-origin-x");
sp_object_read_attr(object, "horiz-origin-y");
sp_object_read_attr(object, "horiz-adv-x");
sp_object_read_attr(object, "vert-origin-x");
sp_object_read_attr(object, "vert-origin-y");
sp_object_read_attr(object, "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_font_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
SPFont *font = SP_FONT(object);
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
repr = xml_doc->createElement("svg:font");
}
sp_repr_set_svg_double(repr, "horiz-origin-x", font->horiz_origin_x);
sp_repr_set_svg_double(repr, "horiz-origin-y", font->horiz_origin_y);
sp_repr_set_svg_double(repr, "horiz-adv-x", font->horiz_adv_x);
sp_repr_set_svg_double(repr, "vert-origin-x", font->vert_origin_x);
sp_repr_set_svg_double(repr, "vert-origin-y", font->vert_origin_y);
sp_repr_set_svg_double(repr, "vert-adv-y", font->vert_adv_y);
if (repr != SP_OBJECT_REPR(object)) {
COPY_ATTR(repr, object->repr, "horiz-origin-x");
COPY_ATTR(repr, object->repr, "horiz-origin-y");
COPY_ATTR(repr, object->repr, "horiz-adv-x");
COPY_ATTR(repr, object->repr, "vert-origin-x");
COPY_ATTR(repr, object->repr, "vert-origin-y");
COPY_ATTR(repr, object->repr, "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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