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/*
* SVG <text> and <tspan> implementation
*
* Author:
* Lauris Kaplinski <lauris@kaplinski.com>
* Jon A. Cruz <jon@joncruz.org>
* Abhishek Sharma
*
* Copyright (C) 1999-2002 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
/*
* fixme:
*
* These subcomponents should not be items, or alternately
* we have to invent set of flags to mark, whether standard
* attributes are applicable to given item (I even like this
* idea somewhat - Lauris)
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "sp-string.h"
#include "xml/repr.h"
/*#####################################################
# SPSTRING
#####################################################*/
static void sp_string_class_init(SPStringClass *classname);
static void sp_string_init(SPString *string);
static void sp_string_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_string_release(SPObject *object);
static void sp_string_read_content(SPObject *object);
static void sp_string_update(SPObject *object, SPCtx *ctx, unsigned flags);
static SPObjectClass *string_parent_class;
GType
sp_string_get_type()
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPStringClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_string_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPString),
16, /* n_preallocs */
(GInstanceInitFunc) sp_string_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPString", &info, (GTypeFlags)0);
}
return type;
}
static void
sp_string_class_init(SPStringClass *classname)
{
SPObjectClass *sp_object_class;
sp_object_class = (SPObjectClass *) classname;
string_parent_class = (SPObjectClass*)g_type_class_ref(SP_TYPE_OBJECT);
sp_object_class->build = sp_string_build;
sp_object_class->release = sp_string_release;
sp_object_class->read_content = sp_string_read_content;
sp_object_class->update = sp_string_update;
}
static void
sp_string_init(SPString *string)
{
new (&string->string) Glib::ustring();
}
static void
sp_string_build(SPObject *object, SPDocument *doc, Inkscape::XML::Node *repr)
{
sp_string_read_content(object);
if (((SPObjectClass *) string_parent_class)->build)
((SPObjectClass *) string_parent_class)->build(object, doc, repr);
}
static void
sp_string_release(SPObject *object)
{
SPString *string = SP_STRING(object);
string->string.~ustring();
if (((SPObjectClass *) string_parent_class)->release)
((SPObjectClass *) string_parent_class)->release(object);
}
static void
sp_string_read_content(SPObject *object)
{
SPString *string = SP_STRING(object);
string->string.clear();
//XML Tree being used directly here while it shouldn't be.
gchar const *xml_string = string->getRepr()->content();
// see algorithms described in svg 1.1 section 10.15
if (object->xml_space.value == SP_XML_SPACE_PRESERVE) {
for ( ; *xml_string ; xml_string = g_utf8_next_char(xml_string) ) {
gunichar c = g_utf8_get_char(xml_string);
if ((c == 0xa) || (c == 0xd) || (c == '\t')) {
c = ' ';
}
string->string += c;
}
}
else {
bool whitespace = false;
for ( ; *xml_string ; xml_string = g_utf8_next_char(xml_string) ) {
gunichar c = g_utf8_get_char(xml_string);
if ((c == 0xa) || (c == 0xd)) {
continue;
}
if ((c == ' ') || (c == '\t')) {
whitespace = true;
} else {
if (whitespace && (!string->string.empty() || (object->getPrev() != NULL))) {
string->string += ' ';
}
string->string += c;
whitespace = false;
}
}
if (whitespace && object->getRepr()->next() != NULL) { // can't use SPObject::getNext() when the SPObject tree is still being built
string->string += ' ';
}
}
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
}
static void
sp_string_update(SPObject *object, SPCtx *ctx, unsigned flags)
{
if (((SPObjectClass *) string_parent_class)->update)
((SPObjectClass *) string_parent_class)->update(object, ctx, flags);
if (flags & (SP_OBJECT_STYLE_MODIFIED_FLAG | SP_OBJECT_MODIFIED_FLAG)) {
/* Parent style or we ourselves changed, so recalculate */
flags &= ~SP_OBJECT_USER_MODIFIED_FLAG_B; // won't be "just a transformation" anymore, we're going to recompute "x" and "y" attributes
}
}
/*
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:fileencoding=utf-8:textwidth=99 :
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