src/GLViewer/GLViewer_ViewPort.h

   1 //  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 //  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 //  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 //  This library is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU Lesser General Public
   8 //  License as published by the Free Software Foundation; either
   9 //  version 2.1 of the License.
  10 //
  11 //  This library is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 //  Lesser General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU Lesser General Public
  17 //  License along with this library; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 //  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22 //  Author : OPEN CASCADE
  23 // File:      GLViewer_ViewPort.h
  24 // Created:   November, 2004
  25 //
  26 #ifndef GLVIEWER_VIEWPORT_H
  27 #define GLVIEWER_VIEWPORT_H
  28
  29 #include "GLViewer.h"
  30
  31 //#include <QList>
  32 #include <QColor>
  33 //#include <QAction>
  34 #include <QWidget>
  35
  36 //#include <Aspect_Window.hxx>
  37
  38 class QRect;
  39 class QCursor;
  40 class QPainter;
  41 class GLViewer_ViewSketcher;
  42 class GLViewer_ViewTransformer;
  43
  44 #ifdef WIN32
  45 #pragma warning( disable:4251 )
  46 #endif
  47
  48 enum BlockStatus
  49 {
  50     BS_NoBlock          = 0x0000,
  51     BS_Highlighting     = 0x0001,
  52     BS_Selection        = 0x0002,
  53     BS_Dragging         = 0x0004
  54 };
  55
  56 /*!
  57   \class GLViewer_ViewPort
  58   Visualisation canvas of GLViewer
  59 */
  60 class GLVIEWER_API GLViewer_ViewPort: public QWidget
  61 {
  62     Q_OBJECT
  63     friend class GLViewer_ViewSketcher;
  64     friend class GLViewer_ViewTransformer;
  65
  66 public:
  67     GLViewer_ViewPort( QWidget* parent );
  68     ~GLViewer_ViewPort();
  69
  70 public:
  71     //! Activates/deactivates sketching
  72     void                             setSketchingEnabled( bool );
  73     //! Checks active status of sketcher
  74     bool                             isSketchingEnabled() const;
  75     //! Activates/deactivates transformer
  76     void                             setTransformEnabled( bool );
  77     //! Checks active status of transformer
  78     bool                             isTransformEnabled() const;
  79
  80     //! Returns background color
  81     virtual QColor                   backgroundColor() const;
  82     //! Sets background color
  83     virtual void                     setBackgroundColor( const QColor& );
  84
  85     //! Redraw external pa inters
  86     void                             redrawPainters();
  87
  88     //! Updates view
  89     virtual void                     onUpdate();
  90
  91     //! Returns blocking status for current started operations
  92     virtual BlockStatus              currentBlock(){ return BS_NoBlock; }
  93
  94 protected:
  95     enum ViewType { Type2D, Type3D };
  96     void                             selectVisualId( ViewType );
  97
  98     virtual QPaintDevice*            getPaintDevice() { return this; }
  99     virtual void                     contextMenuEvent( QContextMenuEvent * e );
 100
 101 //! STATICS
 102     static void                      createCursors();
 103     static void                      destroyCursors();
 104     static QCursor*                  getHandCursor() { return handCursor; }
 105     static void                      setHandCursor( const QCursor& newCursor );
 106     static QCursor*                  getPanCursor() { return panCursor; }
 107     static void                      setPanCursor( const QCursor& newCursor );
 108     static QCursor*                  getPanglCursor() { return panglCursor; }
 109     static void                      setPanglCursor( const QCursor& newCursor );
 110     static QCursor*                  getZoomCursor() { return zoomCursor; }
 111     static void                      setZoomCursor( const QCursor& newCursor );
 112
 113 public://ouv
 114     static QCursor*                  getDefaultCursor() { return defCursor; }
 115     static void                      setDefaultCursor( const QCursor& newCursor );
 116     static QCursor*                  getRotCursor() { return rotCursor; }
 117     static void                      setRotCursor( const QCursor& newCursor );
 118     static QCursor*                  getSketchCursor() { return sketchCursor; }
 119     static void                      setSketchCursor( const QCursor& newCursor );
 120
 121 protected:
 122 //! EVENTS
 123     virtual void                     paintEvent( QPaintEvent *);
 124     virtual void                     mouseMoveEvent( QMouseEvent *);
 125     virtual void                     mouseReleaseEvent( QMouseEvent *);
 126     virtual void                     mousePressEvent( QMouseEvent *);
 127     virtual void                     mouseDoubleClickEvent( QMouseEvent *);
 128     virtual void                     keyPressEvent( QKeyEvent *);
 129     virtual void                     keyReleaseEvent( QKeyEvent *);
 130     virtual void                     wheelEvent( QWheelEvent *);
 131
 132 //! TO BE REDEFINED
 133     virtual void                     reset() = 0;
 134     virtual void                     pan( int, int ) = 0;
 135     virtual void                     setCenter( int, int ) = 0;
 136     virtual void                     zoom( int, int, int, int ) = 0;
 137     virtual void                     fitRect( const QRect& ) = 0;
 138     virtual void                     fitSelect() = 0;
 139     virtual void                     fitAll( bool keepScale = false, bool withZ = true ) = 0;
 140
 141 protected slots:
 142     virtual void                     onChangeBgColor();
 143
 144 signals:
 145     void                             vpKeyEvent( QKeyEvent* );
 146     void                             vpMouseEvent( QMouseEvent* );
 147     void                             vpWheelEvent( QWheelEvent* );
 148     void                             vpDrawExternal( QPainter* );
 149
 150     void                             contextMenuRequested( QContextMenuEvent* );
 151
 152 private:
 153     void                             initialize();
 154     void                             cleanup();
 155
 156 protected:
 157     //Handle(Aspect_Window)            myWindow;
 158     bool                             myEnableSketching;
 159     bool                             myEnableTransform;
 160     bool                             myPaintersRedrawing;   /* set to draw externally */
 161     //QList<QAction>                   myPopupActions;
 162
 163 private:
 164     static int                       nCounter;              /* objects counter */
 165     static QCursor*                  defCursor;
 166     static QCursor*                  panglCursor;
 167     static QCursor*                  handCursor;
 168     static QCursor*                  panCursor;
 169     static QCursor*                  zoomCursor;
 170     static QCursor*                  rotCursor;
 171     static QCursor*                  sketchCursor;
 172 };
 173
 174 #ifdef WIN32
 175 #pragma warning ( default:4251 )
 176 #endif
 177
 178 #endif