QtxRubberBand.h

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// Copyright (C) 2007-2026  CEA, EDF, OPEN CASCADE
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
// File:      QtxRubberBand.h
// Author:    Alexander A. BORODIN
//
#ifndef QTXRUBBERBAND_H
#define QTXRUBBERBAND_H
 
#include "Qtx.h"
 
#include <QWidget>
 
class QTX_EXPORT QtxAbstractRubberBand : public QWidget
{
  Q_OBJECT
 
protected:
  QtxAbstractRubberBand( QWidget* );
 
public:
  virtual ~QtxAbstractRubberBand();
 
  virtual void    clearGeometry();
 
  bool            isClosed();
 
protected:
  virtual void    paintEvent( QPaintEvent* );
  virtual void    showEvent( QShowEvent* );
  virtual void    moveEvent( QMoveEvent* );
  virtual void    resizeEvent( QResizeEvent* );
 
  virtual bool    eventFilter( QObject*, QEvent* );
 
  virtual void    updateMask();
 
protected:
  QPolygon        myPoints;
 
  bool            myIsClosed;
};
 
class QTX_EXPORT QtxRectRubberBand: public QtxAbstractRubberBand
{
  Q_OBJECT
 
public:
  QtxRectRubberBand( QWidget* );
  virtual ~QtxRectRubberBand();
 
  void            initGeometry( const QRect& );
  void            setStartPoint( const QPoint& );
  void            setEndPoint( const QPoint& );
        
  virtual void    clearGeometry();
};
 
class QTX_EXPORT QtxPolyRubberBand: public QtxAbstractRubberBand
{
  Q_OBJECT
 
public:
  QtxPolyRubberBand( QWidget* );
  virtual ~QtxPolyRubberBand();
 
  void            initGeometry( const QPolygon& );
  void            initGeometry( const QPoint& );
 
  void            addNode( const QPoint& );
  void            replaceLastNode( const QPoint& );
  void            removeLastNode();
 
  void            setClosed( bool );
};
 
 
#define CIRCLE_NB_POINTS 30
#define MIN_RADIUS 5
 
class QTX_EXPORT QtxCircleRubberBand : public QtxAbstractRubberBand
{
  Q_OBJECT
 
public:
  QtxCircleRubberBand(QWidget*);
  virtual ~QtxCircleRubberBand();
 
  void            initGeometry(const QPoint&);
 
  void            setRadius(const QPoint&);
 
  bool            isCenterDefined() const;
 
  virtual void    clearGeometry();
 
  void getPoligon(QPolygon* thePoints) const;
 
  int radius() const;
 
protected:
  virtual void    updateMask();
  bool            myHasCenter;
};
 
#endif //QTXRUBBERBAND_H