document-subset.h revision 8dd159d21f0c89ac2a828814284967fc631ab571
/*
* Inkscape::DocumentSubset - view of a document including only a subset
* of nodes
*
* Copyright 2006 MenTaLguY <mental@rydia.net>
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifndef SEEN_INKSCAPE_DOCUMENT_SUBSET_H
#define SEEN_INKSCAPE_DOCUMENT_SUBSET_H
#include <sigc++/connection.h>
#include <sigc++/functors/slot.h>
#include "gc-managed.h"
#include "gc-anchored.h"
class SPObject;
class SPDocument;
namespace Inkscape {
class DocumentSubset : public GC::Managed<>,
public GC::Anchored
{
public:
bool includes(SPObject *obj) const;
SPObject *parentOf(SPObject *obj) const;
unsigned childCount(SPObject *obj) const;
unsigned indexOf(SPObject *obj) const;
SPObject *nthChildOf(SPObject *obj, unsigned n) const;
sigc::connection connectChanged(sigc::slot<void> slot) const;
sigc::connection connectAdded(sigc::slot<void, SPObject *> slot) const;
sigc::connection connectRemoved(sigc::slot<void, SPObject *> slot) const;
protected:
DocumentSubset();
void _addOne(SPObject *obj);
void _removeOne(SPObject *obj) { _remove(obj, false); }
void _removeSubtree(SPObject *obj) { _remove(obj, true); }
void _clear();
private:
DocumentSubset(DocumentSubset const &); // no copy
void operator=(DocumentSubset const &); // no assign
void _remove(SPObject *obj, bool subtree);
class Relations;
Relations *_relations;
};
}
#endif
/*
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:
*/
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