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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define __SP_ANCHOR_C__
/*
* SVG <hkern> and <vkern> elements implementation
* W3C SVG 1.1 spec, page 476, section 20.7
*
* 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-kerning.h"
#include "document.h"
#include <string>
#include <cstring>
static void sp_glyph_kerning_class_init(SPGlyphKerningClass *gc);
static void sp_glyph_kerning_init(SPGlyphKerning *glyph);
static SPObjectClass *parent_class;
GType sp_glyph_kerning_h_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPGlyphKerningClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_glyph_kerning_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPHkern),
16, /* n_preallocs */
(GInstanceInitFunc) sp_glyph_kerning_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPHkern", &info, (GTypeFlags) 0);
}
return type;
}
GType sp_glyph_kerning_v_get_type(void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPGlyphKerningClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_glyph_kerning_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPVkern),
16, /* n_preallocs */
(GInstanceInitFunc) sp_glyph_kerning_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPVkern", &info, (GTypeFlags) 0);
}
return type;
}
static void sp_glyph_kerning_class_init(SPGlyphKerningClass *gc)
{
parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
}
CGlyphKerning::CGlyphKerning(SPGlyphKerning* kerning) : CObject(kerning) {
this->spglyphkerning = kerning;
}
CGlyphKerning::~CGlyphKerning() {
}
static void sp_glyph_kerning_init(SPGlyphKerning *glyph)
{
glyph->cglyphkerning = new CGlyphKerning(glyph);
delete glyph->cobject;
glyph->cobject = glyph->cglyphkerning;
//TODO: correct these values:
glyph->u1 = NULL;
glyph->g1 = NULL;
glyph->u2 = NULL;
glyph->g2 = NULL;
glyph->k = 0;
}
void CGlyphKerning::build(SPDocument *document, Inkscape::XML::Node *repr) {
SPGlyphKerning* object = this->spglyphkerning;
CObject::build(document, repr);
object->readAttr( "u1" );
object->readAttr( "g1" );
object->readAttr( "u2" );
object->readAttr( "g2" );
object->readAttr( "k" );
}
void CGlyphKerning::release() {
CObject::release();
}
GlyphNames::GlyphNames(const gchar* value){
if (value) this->names = strdup(value);
}
GlyphNames::~GlyphNames(){
if (this->names) g_free(this->names);
}
bool GlyphNames::contains(const char* name){
if (!(this->names) || !name) return false;
std::istringstream is(this->names);
std::string str;
std::string s(name);
while (is >> str){
if (str == s) return true;
}
return false;
}
void CGlyphKerning::set(unsigned int key, const gchar *value) {
SPGlyphKerning* object = this->spglyphkerning;
SPGlyphKerning * glyphkern = (SPGlyphKerning*) object; //even if it is a VKern this will work. I did it this way just to avoind warnings.
switch (key) {
case SP_ATTR_U1:
{
if (glyphkern->u1) {
delete glyphkern->u1;
}
glyphkern->u1 = new UnicodeRange(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_U2:
{
if (glyphkern->u2) {
delete glyphkern->u2;
}
glyphkern->u2 = new UnicodeRange(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_G1:
{
if (glyphkern->g1) {
delete glyphkern->g1;
}
glyphkern->g1 = new GlyphNames(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_G2:
{
if (glyphkern->g2) {
delete glyphkern->g2;
}
glyphkern->g2 = new GlyphNames(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_K:
{
double number = value ? g_ascii_strtod(value, 0) : 0;
if (number != glyphkern->k){
glyphkern->k = number;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
}
default:
{
CObject::set(key, value);
break;
}
}
}
/**
* * Receives update notifications.
* */
void CGlyphKerning::update(SPCtx *ctx, guint flags) {
SPGlyphKerning* object = this->spglyphkerning;
SPGlyphKerning *glyph = (SPGlyphKerning *)object;
(void)glyph;
if (flags & SP_OBJECT_MODIFIED_FLAG) {
/* do something to trigger redisplay, updates? */
object->readAttr( "u1" );
object->readAttr( "u2" );
object->readAttr( "g2" );
object->readAttr( "k" );
}
CObject::update(ctx, flags);
}
#define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
Inkscape::XML::Node* CGlyphKerning::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
SPGlyphKerning* object = this->spglyphkerning;
// SPGlyphKerning *glyph = SP_GLYPH_KERNING(object);
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
repr = xml_doc->createElement("svg:glyphkerning");//fix this!
}
/* 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(), "u1");
COPY_ATTR(repr, object->getRepr(), "g1");
COPY_ATTR(repr, object->getRepr(), "u2");
COPY_ATTR(repr, object->getRepr(), "g2");
COPY_ATTR(repr, object->getRepr(), "k");
}
CObject::write(xml_doc, repr, flags);
return repr;
}
/*
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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