mgui/toolcircle.h

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#ifndef  INC_MGUI_TOOLCIRCLE_H
#define  INC_MGUI_TOOLCIRCLE_H

#ifndef  INC_MGUI_TOOLBASE_H
#include <mgui/toolbase.h>
#endif

namespace MGUI {

//=====================================================================================================================

class TOOL_CIRCLE : public TOOL_BASE {
   public:

      explicit TOOL_CIRCLE (
         TOOLCANVAS *canvas
         );

      virtual ~TOOL_CIRCLE ();

      double GetAngle (
         ) const { return (m_angle); }

      const DPOINT2D& GetCenter (
         ) const { return (m_center); }

      double GetRadius (
         ) const { return (m_radius); }

      void SetAngle (
         double angle                        
         );

      void SetAngleVisible (
         bool anglevisible = true
         );

      void SetCenter (
         const DPOINT2D& center
         );

      void SetMarker (
         MARKER marker,                      
         UINT16 size = 0                     
         );

      void SetRadius (
         double radius
         );

      void SetRadiusRange (
         double minradius,                   
         double maxradius                    
         );

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      enum ZONE {
         ZONE_NoFunction = 0,
         ZONE_Outside,
         ZONE_Inside,
         ZONE_Perimeter,
         ZONE_SetCenter,
         ZONE_Rotate,
         };
      MARKER m_marker;
      UINT16 m_markersize;
      double m_minradius;                 
      double m_maxradius;                 
      bool m_anglevisible;             

      DPOINT2D m_center;                  
      double m_radius;
      double m_angle;
      ZONE m_CursorZone;                  
      DPOINT2D m_prevpt;                  

      class MANUAL_CIRCLE;
      friend class MANUAL_CIRCLE;

      void AdjustTool (const DPOINT2D&, bool firsttime=false);
      void ComputeCursorZone (const DPOINT2D&);
      void StartTool (const DPOINT2D&);
      void UpdateCursor (const DPOINT2D&) const;

      virtual MANUAL_BASE* v_CreateManualBase ();
      virtual void v_DoDraw ();
      virtual void v_DoMove (double dx, double dy, ADJUSTFLAGS flags);
      virtual int v_GenerateRegion (REGION2D& region) const;
      virtual bool v_OnPointerButtonDown (MGUI::POINT point, POINTERBUTTON button, KEYSTATE keystate);
      virtual void v_OnPointerMove (MGUI::POINT point, POINTERBUTTON button, KEYSTATE keystate);
      #endif // GENERATING_DOXYGEN_OUTPUT
   };

//=====================================================================================================================

}  // End namespace MGUI

#endif   // INC_MGUI_TOOLCIRCLE_H

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