src/GraphicsView/GraphicsView_Scene.h

   1 // Copyright (C) 2013-2023  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #ifndef GRAPHICSVIEW_SCENE_H
  21 #define GRAPHICSVIEW_SCENE_H
  22
  23 #include "GraphicsView.h"
  24
  25 #include <QGraphicsScene>
  26
  27 class QGraphicsRectItem;
  28
  29 /*
  30   Class       : GraphicsView_Scene
  31   Description : Scene of the graphics view
  32 */
  33 class GRAPHICSVIEW_API GraphicsView_Scene : public QGraphicsScene
  34 {
  35   Q_OBJECT
  36
  37 public:
  38   GraphicsView_Scene( QObject* theParent = 0 );
  39   ~GraphicsView_Scene();
  40
  41 public:
  42   void                       processRectChanged();
  43
  44 protected slots:
  45   void                       onSceneRectChanged( const QRectF& theRect ); // for debug
  46
  47 protected:
  48   virtual void               keyPressEvent( QKeyEvent* );
  49   virtual void               keyReleaseEvent( QKeyEvent* );
  50   virtual void               mousePressEvent( QGraphicsSceneMouseEvent* );
  51   virtual void               mouseMoveEvent( QGraphicsSceneMouseEvent* );
  52   virtual void               mouseReleaseEvent( QGraphicsSceneMouseEvent* );
  53   virtual void               mouseDoubleClickEvent( QGraphicsSceneMouseEvent* );
  54   virtual void               wheelEvent( QGraphicsSceneWheelEvent* );
  55   virtual void               contextMenuEvent( QGraphicsSceneContextMenuEvent* );
  56
  57   virtual void               dragEnterEvent( QGraphicsSceneDragDropEvent* );
  58   virtual void               dragLeaveEvent( QGraphicsSceneDragDropEvent* );
  59   virtual void               dragMoveEvent( QGraphicsSceneDragDropEvent* );
  60   virtual void               dropEvent( QGraphicsSceneDragDropEvent* );
  61
  62 signals:
  63   void                       gsKeyEvent( QKeyEvent* );
  64   void                       gsMouseEvent( QGraphicsSceneMouseEvent* );
  65   void                       gsWheelEvent( QGraphicsSceneWheelEvent* );
  66   void                       gsContextMenuEvent( QGraphicsSceneContextMenuEvent* );
  67
  68   void                       gsBoundingRectChanged();
  69
  70 private:
  71   QGraphicsRectItem*         mySceneRectItem; // for debug
  72 };
  73
  74 #endif