vselection.h

/* This file is part of the KDE project
   Copyright (C) 2001, The Karbon Developers
   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 __VSELECTION_H__
#define __VSELECTION_H__
 
 
#include <tqptrlist.h>
 
#include <KoRect.h>
 
#include "vobject.h"
#include "vvisitor.h"
#include <koffice_export.h>
class KoPoint;
class TQObject;
class VPainter;
class VVisitor;
class VSegment;
 
typedef TQPtrList<VObject> VObjectList;
typedef TQPtrListIterator<VObject> VObjectListIterator;
 

enum VHandleNode
{
    node_none = 0,
    node_lt = 1,
    node_mt = 2,
    node_rt = 3,
    node_lm = 4,
    node_mm = 5,
    node_rm = 6,
    node_lb = 7,
    node_mb = 8,
    node_rb = 9
};
 

class KARBONBASE_EXPORT VSelection : public VObject, public VVisitor
{
public:
    VSelection( VObject* parent = 0L );

    VSelection( const VSelection& selection );

    virtual ~VSelection();

    void draw( VPainter* painter, double zoomFactor ) const;
 
    virtual const KoRect& boundingBox() const;
 
    virtual VSelection* clone() const;
 
    virtual void accept( VVisitor& visitor );

    void append();

    void append( VObject* object );

    void append( const VObjectList &objects );

    bool append( const KoRect& rect, bool selectObjects = true, bool exclusive = true );

    void take( VObject& object );

    bool take( const KoRect& rect, bool selectObjects = true, bool exclusive = true );

    void clear();

    const VObjectList& objects() const { return m_objects; }

    TQPtrList<VSegment> getSegments( const KoRect& rect );

    void selectNodes( bool select = true );

    VHandleNode handleNode( const KoPoint &point ) const;

    void showHandle( bool handle = true ) { m_showhandle = handle; }

    virtual void setSelectObjects( bool selectObjects = true ) { m_selectObjects = selectObjects; }
 
    static void setHandleSize( uint size )
        { m_handleNodeSize = size; }
 
    static uint handleSize()
        { return m_handleNodeSize; }
private:
    bool m_showhandle;

    bool m_selectObjects;

    VObjectList m_objects;

    KoRect *m_handleRect;

    static uint m_handleNodeSize;
};
 
#endif