/* This file is part of the KDE project
   Copyright (C) 2002, The Karbon Developers

   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 __VSELECTOBJECTS_H__
#define __VSELECTOBJECTS_H__


#include "KoRect.h"

#include "vcomposite.h"
#include "vgroup.h"
#include "vtext.h"
#include "vimage.h"
#include "vvisitor.h"

/**
 * This visitor visits a selection and selects objects that are contained
 * in a paramater selection rectangle. For composites it makes a more accurate test, if the
 * selection rectangle intersects with any part of the composite, it is selected.
 * Also this visitor can be used to deselect objects.
 */
class VSelectObjects : public VVisitor
{
public:
	VSelectObjects( VObjectList& selection, bool select = true )
		: m_selection( selection ), m_select( select ), m_rectMode( true ), m_insideGroups( false ) {}

	VSelectObjects( VObjectList& selection, const KoRect& rect, bool select = true )
		: m_selection( selection ), m_select( select ), m_rect( rect ), m_rectMode( true ), m_insideGroups( false ) { }

	VSelectObjects( VObjectList& selection, const KoPoint& point, bool select = true, bool insideGroups = false )
		: m_selection( selection ), m_select( select ), m_point( point ), m_rectMode( false ), m_insideGroups( insideGroups )  {}

	virtual void visitVGroup( VGroup& group );
	virtual void visitVPath( VPath& composite );
	virtual void visitVText( VText& text );
	virtual void visitVImage( VImage& img )
		{ visitVObject( img ); }
	virtual void visitVLayer( VLayer& layer );

private:
	void visitVObject( VObject& object );

	VObjectList& m_selection;

	bool m_select;

	KoRect m_rect;
	KoPoint m_point;
	bool m_rectMode;
	bool m_insideGroups;
};

#endif