MouseSelection.h

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/***************************************************************************
 *   Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net>     *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   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., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#ifndef MOUSESELECTION_H
#define MOUSESELECTION_H

#include <vector>
#include <Inventor/SbLinear.h>
#include <Inventor/SbVec2f.h>

// forwards
class QMouseEvent;
class QWheelEvent;
class QKeyEvent;
class QPaintEvent;
class QResizeEvent;
class SoEvent;
class SbViewportRegion;
class SoMouseButtonEvent;
class SoLocation2Event;
class SoKeyboardEvent;

namespace Gui {
class View3DInventorViewer;

class GuiExport AbstractMouseSelection
{
public:
    enum { Continue=0, Restart=1, Finish=2, Cancel=3 };

    AbstractMouseSelection();
    virtual ~AbstractMouseSelection(void){}
    virtual void initialize() = 0;
    virtual void terminate () = 0;
    void grabMouseModel(Gui::View3DInventorViewer*);
    void releaseMouseModel(void);
    const std::vector<SbVec2s>& getPositions() const { return _clPoly; }
    SbBool isInner() const { return m_bInner; }

    void redraw();

    int handleEvent(const SoEvent * const ev, const SbViewportRegion& vp);

protected:
    virtual int mouseButtonEvent( const SoMouseButtonEvent * const e, const QPoint& pos ){ return 0; };
    virtual int locationEvent   ( const SoLocation2Event   * const e, const QPoint& pos ){ return 0; };
    virtual int keyboardEvent   ( const SoKeyboardEvent    * const e )                   { return 0; };

    virtual void draw (){};

protected:
    Gui::View3DInventorViewer*_pcView3D;
    QCursor m_cPrevCursor;
    int  m_iXold, m_iYold;
    int  m_iXnew, m_iYnew;
    SbBool m_bInner;
    SbBool mustRedraw;

private:
    std::vector<SbVec2s> _clPoly;
};

// -----------------------------------------------------------------------------------

class GuiExport BaseMouseSelection : public AbstractMouseSelection
{
public:
    BaseMouseSelection();
    virtual ~BaseMouseSelection(){}
};

// -----------------------------------------------------------------------------------

class GuiExport PolyPickerSelection : public BaseMouseSelection
{
public:
    PolyPickerSelection();
    virtual ~PolyPickerSelection();

    virtual void initialize();
    virtual void terminate();

protected:
    virtual int mouseButtonEvent( const SoMouseButtonEvent * const e, const QPoint& pos );
    virtual int locationEvent   ( const SoLocation2Event   * const e, const QPoint& pos );
    virtual int keyboardEvent   ( const SoKeyboardEvent    * const e );

    virtual void draw ();
    virtual int popupMenu();

protected:
    std::vector<QPoint> _cNodeVector;
    int  m_iRadius, m_iNodes;
    bool m_bWorking;
};

// -----------------------------------------------------------------------------------

class GuiExport PolyClipSelection : public PolyPickerSelection
{
public:
    PolyClipSelection();
    virtual ~PolyClipSelection();

protected:
    virtual int popupMenu();
};

// -----------------------------------------------------------------------------------

class GuiExport RectangleSelection : public BaseMouseSelection 
{
public:
    RectangleSelection();
    virtual ~RectangleSelection();

    virtual void initialize();
    virtual void terminate();

protected:
    virtual int mouseButtonEvent( const SoMouseButtonEvent * const e, const QPoint& pos );
    virtual int locationEvent   ( const SoLocation2Event   * const e, const QPoint& pos );
    virtual int keyboardEvent   ( const SoKeyboardEvent    * const e );

    virtual void draw ();

private:
    bool m_bWorking;
};

// -----------------------------------------------------------------------------------

class GuiExport BoxZoomSelection : public RectangleSelection 
{
public:
    BoxZoomSelection();
    ~BoxZoomSelection();
    void terminate();
};

} // namespace Gui

#endif // MOUSESELECTION_H