src/GLViewer/GLViewer_ViewPort.h

   1 // Copyright (C) 2007-2016  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, or (at your option) any later version.
  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
  23 //  Author : OPEN CASCADE
  24 // File:      GLViewer_ViewPort.h
  25 // Created:   November, 2004
  26 //
  27 #ifndef GLVIEWER_VIEWPORT_H
  28 #define GLVIEWER_VIEWPORT_H
  29
  30 #include "GLViewer.h"
  31
  32 //#include <QList>
  33 #include <QColor>
  34 //#include <QAction>
  35 #include <QWidget>
  36
  37 //#include <Aspect_Window.hxx>
  38
  39 class QRect;
  40 class QCursor;
  41 class QPainter;
  42 class GLViewer_ViewSketcher;
  43 class GLViewer_ViewTransformer;
  44
  45 #ifdef WIN32
  46 #pragma warning( disable:4251 )
  47 #endif
  48
  49 enum BlockStatus
  50 {
  51     BS_NoBlock          = 0x0000,
  52     BS_Highlighting     = 0x0001,
  53     BS_Selection        = 0x0002,
  54     BS_Dragging         = 0x0004
  55 };
  56
  57 /*!
  58   \class GLViewer_ViewPort
  59   Visualisation canvas of GLViewer
  60 */
  61 class GLVIEWER_API GLViewer_ViewPort: public QWidget
  62 {
  63     Q_OBJECT
  64     friend class GLViewer_ViewSketcher;
  65     friend class GLViewer_ViewTransformer;
  66
  67 public:
  68     GLViewer_ViewPort( QWidget* parent );
  69     ~GLViewer_ViewPort();
  70
  71 public:
  72     //! Activates/deactivates sketching
  73     void                             setSketchingEnabled( bool );
  74     //! Checks active status of sketcher
  75     bool                             isSketchingEnabled() const;
  76     //! Activates/deactivates transformer
  77     void                             setTransformEnabled( bool );
  78     //! Checks active status of transformer
  79     bool                             isTransformEnabled() const;
  80
  81     //! Returns background color
  82     virtual QColor                   backgroundColor() const;
  83     //! Sets background color
  84     virtual void                     setBackgroundColor( const QColor& );
  85
  86     //! Redraw external pa inters
  87     void                             redrawPainters();
  88
  89     //! Updates view
  90     virtual void                     onUpdate();
  91
  92     //! Returns blocking status for current started operations
  93     virtual BlockStatus              currentBlock(){ return BS_NoBlock; }
  94
  95 protected:
  96     enum ViewType { Type2D, Type3D };
  97     void                             selectVisualId( ViewType );
  98
  99     virtual QPaintDevice*            getPaintDevice() { return this; }
 100     virtual void                     contextMenuEvent( QContextMenuEvent * e );
 101
 102 //! STATICS
 103     static void                      createCursors();
 104     static void                      destroyCursors();
 105     static QCursor*                  getHandCursor() { return handCursor; }
 106     static void                      setHandCursor( const QCursor& newCursor );
 107     static QCursor*                  getPanCursor() { return panCursor; }
 108     static void                      setPanCursor( const QCursor& newCursor );
 109     static QCursor*                  getPanglCursor() { return panglCursor; }
 110     static void                      setPanglCursor( const QCursor& newCursor );
 111     static QCursor*                  getZoomCursor() { return zoomCursor; }
 112     static void                      setZoomCursor( const QCursor& newCursor );
 113
 114 public://ouv
 115     static QCursor*                  getDefaultCursor() { return defCursor; }
 116     static void                      setDefaultCursor( const QCursor& newCursor );
 117     static QCursor*                  getRotCursor() { return rotCursor; }
 118     static void                      setRotCursor( const QCursor& newCursor );
 119     static QCursor*                  getSketchCursor() { return sketchCursor; }
 120     static void                      setSketchCursor( const QCursor& newCursor );
 121
 122 protected:
 123 //! EVENTS
 124     virtual void                     paintEvent( QPaintEvent *);
 125     virtual void                     mouseMoveEvent( QMouseEvent *);
 126     virtual void                     mouseReleaseEvent( QMouseEvent *);
 127     virtual void                     mousePressEvent( QMouseEvent *);
 128     virtual void                     mouseDoubleClickEvent( QMouseEvent *);
 129     virtual void                     keyPressEvent( QKeyEvent *);
 130     virtual void                     keyReleaseEvent( QKeyEvent *);
 131     virtual void                     wheelEvent( QWheelEvent *);
 132
 133 //! TO BE REDEFINED
 134     virtual void                     reset() = 0;
 135     virtual void                     pan( int, int ) = 0;
 136     virtual void                     setCenter( int, int ) = 0;
 137     virtual void                     zoom( int, int, int, int ) = 0;
 138     virtual void                     fitRect( const QRect& ) = 0;
 139     virtual void                     fitSelect() = 0;
 140     virtual void                     fitAll( bool keepScale = false, bool withZ = true ) = 0;
 141
 142 protected slots:
 143     virtual void                     onChangeBgColor();
 144
 145 signals:
 146     void                             vpKeyEvent( QKeyEvent* );
 147     void                             vpMouseEvent( QMouseEvent* );
 148     void                             vpWheelEvent( QWheelEvent* );
 149     void                             vpDrawExternal( QPainter* );
 150
 151     void                             contextMenuRequested( QContextMenuEvent* );
 152
 153 private:
 154     void                             initialize();
 155     void                             cleanup();
 156
 157 protected:
 158     //Handle(Aspect_Window)            myWindow;
 159     bool                             myEnableSketching;
 160     bool                             myEnableTransform;
 161     bool                             myPaintersRedrawing;   /* set to draw externally */
 162     //QList<QAction>                   myPopupActions;
 163
 164 private:
 165     static int                       nCounter;              /* objects counter */
 166     static QCursor*                  defCursor;
 167     static QCursor*                  panglCursor;
 168     static QCursor*                  handCursor;
 169     static QCursor*                  panCursor;
 170     static QCursor*                  zoomCursor;
 171     static QCursor*                  rotCursor;
 172     static QCursor*                  sketchCursor;
 173 };
 174
 175 #ifdef WIN32
 176 #pragma warning ( default:4251 )
 177 #endif
 178
 179 #endif