mgui/toolsegment.h

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#ifndef  INC_MGUI_TOOLSEGMENT_H
#define  INC_MGUI_TOOLSEGMENT_H

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

namespace MGUI {


class TOOL_SEGMENT : public TOOL_LIMITED {
   public:

      explicit TOOL_SEGMENT (
         TOOLCANVAS *canvas
         );

      virtual ~TOOL_SEGMENT ();

      const DPOINT2D& GetEnd (
         ) const { return (m_endpoint); }

      const DPOINT2D& GetStart (
         ) const { return (m_startpoint); }

      void SetEnd (
         const DPOINT2D& ptEnd
         );

      void SetMarkers (
         MARKER startmarker,                 
         MARKER endmarker,                   
         UINT16 startmarkersize = 0,         
         UINT16 endmarkersize = 0            
         );

      void SetPoints (
         const DPOINT2D& ptStart,
         const DPOINT2D& ptEnd
         );

      void SetStart (
         const DPOINT2D& ptStart
         );

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      // Enumeration constants
      enum ZONE {
         ZONE_NoFunction = 0,
         ZONE_Outside,
         ZONE_Inside,
         ZONE_Start,
         ZONE_End
         };
      class MANUAL_SEGMENT;
      // Tool settings
      MARKER m_startmarker;
      MARKER m_endmarker;
      UINT16 m_startmarkersize;
      UINT16 m_endmarkersize;
      // Tool position values
      DPOINT2D m_endpoint;
      DPOINT2D m_startpoint;
      // Values used during interaction
      ZONE m_CursorZone;                  // Current cursor zone
      DPOINT2D m_prevpt;                  // Previous point during button-down
      UINT8 m_AdjustMode;                 // Adjustment mode, 2=rotate, 1=everything else

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

      // TOOL_BASE overrides.
      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_TOOLSEGMENT_H

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