src/GLViewer/GLViewer_ViewPort.h

   1 // File:      GLViewer_ViewPort.h
   2 // Created:   November, 2004
   3 // Author:    OCC team
   4 // Copyright (C) CEA 2004
   5
   6 /***************************************************************************
   7 **  Class:   GLViewer_ViewPort
   8 **  Descr:   Visualisation canvas of QAD-based application
   9 **  Module:  QAD
  10 **  Created: UI team, 05.09.00
  11 ****************************************************************************/
  12 #ifndef GLVIEWER_VIEWPORT_H
  13 #define GLVIEWER_VIEWPORT_H
  14
  15 #include "GLViewer.h"
  16
  17 #include <qlist.h>
  18 #include <qcolor.h>
  19 #include <qaction.h>
  20 #include <qwidget.h>
  21
  22 #include <Aspect_Window.hxx>
  23
  24 class QRect;
  25 class QCursor;
  26 class QPainter;
  27 class GLViewer_ViewSketcher;
  28 class GLViewer_ViewTransformer;
  29
  30 #ifdef WNT
  31 #pragma warning( disable:4251 )
  32 #endif
  33
  34 enum BlockStatus
  35 {
  36     BS_NoBlock          = 0x0000,
  37     BS_Highlighting     = 0x0001,
  38     BS_Selection        = 0x0002,
  39     BS_Dragging         = 0x0004
  40 };
  41
  42 class GLVIEWER_API GLViewer_ViewPort: public QWidget
  43 {
  44     Q_OBJECT
  45     friend class GLViewer_ViewSketcher;
  46     friend class GLViewer_ViewTransformer;
  47
  48 public:
  49     GLViewer_ViewPort( QWidget* parent );
  50     ~GLViewer_ViewPort();
  51
  52 public:
  53     void                             setSketchingEnabled( bool );
  54     bool                             isSketchingEnabled() const;
  55     void                             setTransformEnabled( bool );
  56     bool                             isTransformEnabled() const;
  57
  58     virtual QColor                   backgroundColor() const;
  59     virtual void                     setBackgroundColor( const QColor& );
  60
  61     void                             redrawPainters();
  62
  63     virtual void                     onUpdate();
  64
  65     virtual BlockStatus              currentBlock(){ return BS_NoBlock; }
  66
  67 protected:
  68     enum ViewType { Type2D, Type3D };
  69     void                             selectVisualId( ViewType );
  70
  71     virtual QPaintDevice*            getPaintDevice() { return this; }
  72     virtual void                     contextMenuEvent( QContextMenuEvent * e );
  73
  74 // STATICS
  75     static void                      createCursors();
  76     static void                      destroyCursors();
  77     static QCursor*                  getHandCursor() { return handCursor; }
  78     static void                      setHandCursor( const QCursor& newCursor );
  79     static QCursor*                  getPanCursor() { return panCursor; }
  80     static void                      setPanCursor( const QCursor& newCursor );
  81     static QCursor*                  getPanglCursor() { return panglCursor; }
  82     static void                      setPanglCursor( const QCursor& newCursor );
  83     static QCursor*                  getZoomCursor() { return zoomCursor; }
  84     static void                      setZoomCursor( const QCursor& newCursor );
  85
  86 public://ouv
  87     static QCursor*                  getDefaultCursor() { return defCursor; }
  88     static void                      setDefaultCursor( const QCursor& newCursor );
  89     static QCursor*                  getRotCursor() { return rotCursor; }
  90     static void                      setRotCursor( const QCursor& newCursor );
  91     static QCursor*                  getSketchCursor() { return sketchCursor; }
  92     static void                      setSketchCursor( const QCursor& newCursor );
  93
  94 protected:
  95 // EVENTS
  96     virtual void                     paintEvent( QPaintEvent *);
  97     virtual void                     mouseMoveEvent( QMouseEvent *);
  98     virtual void                     mouseReleaseEvent( QMouseEvent *);
  99     virtual void                     mousePressEvent( QMouseEvent *);
 100     virtual void                     mouseDoubleClickEvent( QMouseEvent *);
 101     virtual void                     keyPressEvent( QKeyEvent *);
 102     virtual void                     keyReleaseEvent( QKeyEvent *);
 103     virtual void                     wheelEvent( QWheelEvent *);
 104
 105 // TO BE REDEFINED
 106     virtual void                     reset() = 0;
 107     virtual void                     pan( int, int ) = 0;
 108     virtual void                     setCenter( int, int ) = 0;
 109     virtual void                     zoom( int, int, int, int ) = 0;
 110     virtual void                     fitRect( const QRect& ) = 0;
 111     virtual void                     fitSelect() = 0;
 112     virtual void                     fitAll( bool keepScale = false, bool withZ = true ) = 0;
 113
 114 protected slots:
 115     virtual void                     onChangeBgColor();
 116
 117 signals:
 118     void                             vpKeyEvent( QKeyEvent* );
 119     void                             vpMouseEvent( QMouseEvent* );
 120     void                             vpWheelEvent( QWheelEvent* );
 121     void                             vpDrawExternal( QPainter* );
 122
 123     void                             contextMenuRequested( QContextMenuEvent* );
 124
 125 private:
 126     void                             initialize();
 127     void                             cleanup();
 128
 129 protected:
 130     //Handle(Aspect_Window)            myWindow;
 131     bool                             myEnableSketching;
 132     bool                             myEnableTransform;
 133     bool                             myPaintersRedrawing;   /* set to draw externally */
 134     //QList<QAction>                   myPopupActions;
 135
 136 private:
 137     static int                       nCounter;              /* objects counter */
 138     static QCursor*                  defCursor;
 139     static QCursor*                  panglCursor;
 140     static QCursor*                  handCursor;
 141     static QCursor*                  panCursor;
 142     static QCursor*                  zoomCursor;
 143     static QCursor*                  rotCursor;
 144     static QCursor*                  sketchCursor;
 145 };
 146
 147 #ifdef WNT
 148 #pragma warning ( default:4251 )
 149 #endif
 150
 151 #endif