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/* This file is part of the KDE project
Copyright (C) 2008 Thorsten Zachmann <zachmann@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KOSHAPETRAVERSAL_H
#define KOSHAPETRAVERSAL_H
class KoShape;
class KoShapeContainer;
class QString;
/**
* @brief Class to traverse shapes
*/
class KoShapeTraversal
{
public:
/**
* @brief Get the next shape in the tree
*
* @param current The current shape
*
* @return The shape after the given one or 0 if there is no next shape
*/
static KoShape * nextShape( const KoShape * current );
/**
* @brief Get the next shape in the tree of the given type
*
* @param current The current shape
* @param shapeId The shape id of the shape to find
*
* @return The shape with the shape id given after the current one or 0 if there is no
* such shape after the current one
*/
static KoShape * nextShape( const KoShape * current, const QString & shapeId );
/**
* @brief Get the previous shape in the tree
*
* @param current The current shape
*
* @return The shape before the given one
*/
static KoShape * previousShape( const KoShape * current );
/**
* @brief Get the previous shape in the tree of the given type
*
* @param current The current shape
* @param shapeId The shape id of the shape to find
*
* @return The shape with the shape id given before the current one or 0 if there is no
* such shape before the current one
*/
static KoShape * previousShape( const KoShape * current, const QString & shapeId );
/**
* @brief Get the last shape in subtree
*
* @param current The current shape
*
* @return The last shape in the current sub tree
*/
static KoShape * last( KoShape * current );
private:
static KoShape * nextShapeStep( const KoShape * current, const KoShapeContainer * parent );
static KoShape * previousShapeStep( const KoShape * current, const KoShapeContainer * parent );
};
#endif /* KOSHAPETRAVERSAL_H */
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