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/*
* SVG <defs> implementation
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* Jon A. Cruz <jon@joncruz.org>
* Abhishek Sharma
*
* Copyright (C) 2000-2002 authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
/*
* fixme: We should really check childrens validity - currently everything
* flips in
*/
#include "sp-defs.h"
#include "xml/repr.h"
#include "document.h"
SPObjectClass * SPDefsClass::static_parent_class = 0;
GType SPDefs::sp_defs_get_type(void)
{
static GType defs_type = 0;
if (!defs_type) {
GTypeInfo defs_info = {
sizeof(SPDefsClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) SPDefsClass::sp_defs_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPDefs),
16, /* n_preallocs */
(GInstanceInitFunc) init,
NULL, /* value_table */
};
defs_type = g_type_register_static(SP_TYPE_OBJECT, "SPDefs", &defs_info, (GTypeFlags) 0);
}
return defs_type;
}
void SPDefsClass::sp_defs_class_init(SPDefsClass *dc)
{
static_parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
SPObjectClass *sp_object_class = (SPObjectClass *) dc;
sp_object_class->release = SPDefs::release;
sp_object_class->update = SPDefs::update;
sp_object_class->modified = SPDefs::modified;
sp_object_class->write = SPDefs::write;
}
void SPDefs::init(SPDefs */*defs*/)
{
}
void SPDefs::release(SPObject *object)
{
if (((SPObjectClass *) (SPDefsClass::static_parent_class))->release) {
((SPObjectClass *) (SPDefsClass::static_parent_class))->release(object);
}
}
void SPDefs::update(SPObject *object, SPCtx *ctx, guint flags)
{
if (flags & SP_OBJECT_MODIFIED_FLAG) {
flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
}
flags &= SP_OBJECT_MODIFIED_CASCADE;
GSList *l = g_slist_reverse(object->childList(true));
while (l) {
SPObject *child = SP_OBJECT(l->data);
l = g_slist_remove(l, child);
if (flags || (child->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
child->updateDisplay(ctx, flags);
}
g_object_unref (G_OBJECT (child));
}
}
void SPDefs::modified(SPObject *object, guint flags)
{
if (flags & SP_OBJECT_MODIFIED_FLAG) {
flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
}
flags &= SP_OBJECT_MODIFIED_CASCADE;
GSList *l = NULL;
for ( SPObject *child = object->firstChild() ; child; child = child->getNext() ) {
g_object_ref(G_OBJECT(child));
l = g_slist_prepend(l, child);
}
l = g_slist_reverse(l);
while (l) {
SPObject *child = SP_OBJECT(l->data);
l = g_slist_remove(l, child);
if (flags || (child->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
child->emitModified(flags);
}
g_object_unref( G_OBJECT(child) );
}
}
Inkscape::XML::Node * SPDefs::write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
if (flags & SP_OBJECT_WRITE_BUILD) {
if (!repr) {
repr = xml_doc->createElement("svg:defs");
}
GSList *l = NULL;
for ( SPObject *child = object->firstChild() ; child; child = child->getNext() ) {
Inkscape::XML::Node *crepr = child->updateRepr(xml_doc, NULL, flags);
if (crepr) {
l = g_slist_prepend(l, crepr);
}
}
while (l) {
repr->addChild((Inkscape::XML::Node *) l->data, NULL);
Inkscape::GC::release((Inkscape::XML::Node *) l->data);
l = g_slist_remove(l, l->data);
}
} else {
for ( SPObject *child = object->firstChild() ; child; child = child->getNext() ) {
child->updateRepr(flags);
}
}
if (((SPObjectClass *) (SPDefsClass::static_parent_class))->write) {
(* ((SPObjectClass *) (SPDefsClass::static_parent_class))->write)(object, 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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