yet another refactoring

[cpPlugins.git] / lib / cpExtensions / Interaction / BaseStyle.h

diff --git a/lib/cpExtensions/Interaction/BaseStyle.h b/lib/cpExtensions/Interaction/BaseStyle.h
new file mode 100644 (file)
index 0000000..cee7078
--- /dev/null
+++ b/lib/cpExtensions/Interaction/BaseStyle.h
@@ -0,0 +1,193 @@
+#ifndef __cpExtensions__Interaction__BaseStyle__h__
+#define __cpExtensions__Interaction__BaseStyle__h__
+
+#include <cpExtensions/Config.h>
+#include <vtkInteractorStyle.h>
+#include <map>
+
+// -------------------------------------------------------------------------
+#define cpExtensions_BaseStyle_Commands( C )                            \
+  protected:                                                            \
+  std::map< T##C##Command, void* > m_##C##Commands;                     \
+  public:                                                               \
+  inline void Add##C##Command( T##C##Command c, void* d )               \
+  {                                                                     \
+    if( c != NULL )                                                     \
+    {                                                                   \
+      this->m_##C##Commands[ c ] = d;                                   \
+      this->Modified( );                                                \
+    }                                                                   \
+  }                                                                     \
+  inline void Remove##C##Command( T##C##Command c )                     \
+  {                                                                     \
+    std::map< T##C##Command, void* >::iterator i =                      \
+      this->m_##C##Commands.find( c );                                  \
+    if( i != this->m_##C##Commands.end( ) )                             \
+    {                                                                   \
+      this->m_##C##Commands.erase( i );                                 \
+      this->Modified( );                                                \
+    }                                                                   \
+  }
+
+// -------------------------------------------------------------------------
+namespace cpExtensions
+{
+  namespace Interaction
+  {
+    /**
+     */
+    class cpExtensions_EXPORT BaseStyle
+      : public vtkInteractorStyle
+    {
+    public:
+      typedef BaseStyle Self;
+      vtkTypeMacro( BaseStyle, vtkInteractorStyle );
+
+      enum ButtonID
+      {
+        ButtonID_None = 0,
+        ButtonID_Left,
+        ButtonID_Middle,
+        ButtonID_Right
+      };
+
+      // Callbacks types
+      typedef void ( *TMouseCommand )(
+        void*, const ButtonID&, int*, double*, bool, bool, bool
+        );
+      typedef TMouseCommand TMouseClickCommand;
+      typedef TMouseCommand TMouseDoubleClickCommand;
+
+      // Associate callbacks for each event
+      cpExtensions_BaseStyle_Commands( MouseClick );
+      cpExtensions_BaseStyle_Commands( MouseDoubleClick );
+
+    public:
+      static void SetSetDoubleClickDelay( long delay );
+      void DelegateTDxEvent( unsigned long event, void* calldata );
+
+      // Possible mouse motion events
+      virtual void OnMouseMove( ) cpExtensions_OVERRIDE;
+      virtual void OnMouseWheelForward( )  cpExtensions_OVERRIDE { }
+      virtual void OnMouseWheelBackward( ) cpExtensions_OVERRIDE { }
+
+      // Possible mouse click-related events
+      inline ButtonID GetButtonID( ) const { return( this->m_ActiveButton ); }
+
+      virtual void OnLeftButtonDown( ) cpExtensions_OVERRIDE;
+      virtual void OnLeftButtonUp( ) cpExtensions_OVERRIDE;
+      virtual void OnMiddleButtonDown( ) cpExtensions_OVERRIDE;
+      virtual void OnMiddleButtonUp( ) cpExtensions_OVERRIDE;
+      virtual void OnRightButtonDown( ) cpExtensions_OVERRIDE;
+      virtual void OnRightButtonUp( ) cpExtensions_OVERRIDE;
+
+      virtual void OnLeftClick( );
+      virtual void OnLeftDoubleClick( );
+      virtual void OnMiddleClick( );
+      virtual void OnMiddleDoubleClick( );
+      virtual void OnRightClick( );
+      virtual void OnRightDoubleClick( );
+
+      // Keyboard-related events
+      virtual void OnChar( ) cpExtensions_OVERRIDE       { }
+      virtual void OnKeyDown( ) cpExtensions_OVERRIDE    { }
+      virtual void OnKeyUp( ) cpExtensions_OVERRIDE      { }
+      virtual void OnKeyPress( ) cpExtensions_OVERRIDE   { }
+      virtual void OnKeyRelease( ) cpExtensions_OVERRIDE { }
+
+      // Other events
+      virtual void OnExpose( ) cpExtensions_OVERRIDE    { }
+      virtual void OnConfigure( ) cpExtensions_OVERRIDE { }
+      virtual void OnEnter( ) cpExtensions_OVERRIDE     { }
+      virtual void OnLeave( ) cpExtensions_OVERRIDE     { }
+
+      virtual void Dolly( ) cpExtensions_OVERRIDE;
+      virtual void Pan( ) cpExtensions_OVERRIDE;
+
+    protected:
+      BaseStyle( );
+      virtual ~BaseStyle( );
+
+      virtual void _Dolly( double factor );
+
+      // Extension interface
+      virtual bool _PickPosition( int idx[ 2 ], double pos[ 3 ] ) = 0;
+
+      // Main event callback
+      static void _ProcessEvents(
+        vtkObject* object,
+        unsigned long event,
+        void* clientdata,
+        void* calldata
+        );
+
+    private:
+      // Purposely not implemented
+      BaseStyle( const Self& );
+      Self& operator=( const Self& );
+
+    protected:
+      double m_MotionFactor;
+
+      /**
+       * Button events
+       */
+      struct _TMouseButtonEvent
+      {
+        static long MaxDoubleClick;
+        long m_LastButtonUp;
+        long m_LastButtonHeld;
+        long m_LastButtonDown;
+
+        inline _TMouseButtonEvent( )
+          { this->Reset( ); }
+        inline void Reset( )
+          {
+            this->m_LastButtonUp = 0;
+            this->m_LastButtonHeld = 0;
+            this->m_LastButtonDown = -1;
+          }
+        inline void Release( )
+          {
+            /* TODO
+               long c = cpExtensions_CHRONO;
+               this->m_LastButtonUp = c;
+               this->m_LastButtonHeld = c - this->m_LastButtonDown;
+               this->m_LastButtonDown = -1;
+            */
+          }
+        inline unsigned char Clicks( )
+          {
+            /* TODO
+               unsigned char n = 0;
+               long c = cpExtensions_CHRONO;
+               if(
+               this->m_LastButtonHeld < MaxDoubleClick &&
+               ( c - this->m_LastButtonUp ) < MaxDoubleClick
+               )
+               {
+               this->Reset( );
+               n = 2;
+               }
+               else
+               n = 1;
+               if( this->m_LastButtonDown < 0 )
+               this->m_LastButtonDown = c;
+               return( n );
+            */
+            return( 1 );
+          }
+      };
+      _TMouseButtonEvent m_LeftButtonEvent;
+      _TMouseButtonEvent m_MiddleButtonEvent;
+      _TMouseButtonEvent m_RightButtonEvent;
+      ButtonID           m_ActiveButton;
+    };
+
+  } // ecapseman
+
+} // ecapseman
+
+#endif // __cpExtensions__Interaction__BaseStyle__h__
+
+// eof - $RCSfile$