~centralelyon2010/inkscape/imagelinks2

/*

 * 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 <stddef.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:

*/

// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :