mgui/customdraw.h

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#ifndef  INC_MGUI_CUSTOMDRAW_H
#define  INC_MGUI_CUSTOMDRAW_H

#ifndef  INC_MI32_RECT_H
#include <mi32/rect.h>
#endif


#ifndef GENERATING_DOXYGEN_OUTPUT
namespace MGD {
   class CONTEXT;
   }
#endif


namespace MGUI {

class CUSTOMDRAW {
   public:

      //  Values chosen to match Windows common controls.
      enum DRAWSTAGE {
         DRAWSTAGE_PrePaint =                0x00000001,
         DRAWSTAGE_PostPaint =               0x00000002,
         DRAWSTAGE_PreErase =                0x00000003,
         DRAWSTAGE_PostErase =               0x00000004,
         DRAWSTAGE_CtrlPrePaint =            DRAWSTAGE_PrePaint,
         DRAWSTAGE_CtrlPostPaint =           DRAWSTAGE_PostPaint,
         DRAWSTAGE_CtrlPreErase =            DRAWSTAGE_PreErase,
         DRAWSTAGE_CtrlPostErase =           DRAWSTAGE_PostErase,
         DRAWSTAGE_Item =                    0x00010000,
         DRAWSTAGE_ItemPrePaint =            DRAWSTAGE_Item | DRAWSTAGE_PrePaint,
         DRAWSTAGE_ItemPostPaint =           DRAWSTAGE_Item | DRAWSTAGE_PostPaint,
         DRAWSTAGE_ItemPreErase =            DRAWSTAGE_Item | DRAWSTAGE_PreErase,
         DRAWSTAGE_ItemPostErase =           DRAWSTAGE_Item | DRAWSTAGE_PostErase,
         DRAWSTAGE_SubItem =                 0x00020000,
         DRAWSTAGE_SubItemPrePaint =         DRAWSTAGE_SubItem | DRAWSTAGE_ItemPrePaint,
         DRAWSTAGE_SubItemPostPaint =        DRAWSTAGE_SubItem | DRAWSTAGE_ItemPostPaint,
         };

      //  Values chosen to match Windows common controls.
      enum ITEMSTATE {
         ITEMSTATE_Normal =            0x0000,
         ITEMSTATE_Selected =          0x0001,
         ITEMSTATE_Grayed =            0x0002,
         ITEMSTATE_Disabled =          0x0004,
         ITEMSTATE_Checked =           0x0008,
         ITEMSTATE_Focus =             0x0010,
         ITEMSTATE_Default =           0x0020,
         ITEMSTATE_Hot =               0x0040,
         ITEMSTATE_Marked =            0x0080,
         ITEMSTATE_Indeterminant =     0x0100,
         };

      enum RETVALUE {
         RETVALUE_DoDefault =          0x00, 
         RETVALUE_SkipDefault =        0x04, 
         RETVALUE_NotifyPostPaint =    0x10, 
         RETVALUE_NotifyItemDraw =     0x20, 
         RETVALUE_NotifySubItemDraw =  0x20, 
         RETVALUE_NotifyPostErase =    0x40, 
         };

      MGD::CONTEXT* GetDrawingContext (
         ) const { return (m_pDC); }

      DRAWSTAGE GetDrawStage (
         ) const { return (m_drawstage); }

      ID GetID (
         ) const { return (m_id); }

      ITEMSTATE GetItemState (
         ) const { return (m_itemstate); }

      const LRECT2D& GetRect (
         ) const { return (m_rect); }

      void SetDrawStage (
         DRAWSTAGE drawstage
         ) { m_drawstage = drawstage; }

   protected:

      CUSTOMDRAW (
         );

      CUSTOMDRAW (
         DRAWSTAGE drawstage,
         ITEMSTATE itemstate,
         INT32 ItemNumber,
         ID id,
         const LRECT2D& rect
         );

      ~CUSTOMDRAW ()
         { }

      INT32 GetItemNumber (
         ) const { return (m_ItemNumber); }

      void SetBase (
         ITEMSTATE itemstate,
         INT32 ItemNumber,
         ID id,
         const LRECT2D& rect
         );

      void SetDrawingContext (
         MGD::CONTEXT *pDC
         ) { m_pDC = pDC; }

      void SetRect (
         INT32 xinit,
         INT32 yinit,
         INT32 xlast,
         INT32 ylast
         ) { m_rect.Set(xinit,yinit,xlast,ylast); }

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      DRAWSTAGE m_drawstage;
      ITEMSTATE m_itemstate;
      INT32 m_ItemNumber;
      ID m_id;
      LRECT2D m_rect;
      MGD::CONTEXT *m_pDC;
      #endif // GENERATING_DOXYGEN_OUTPUT

   };

#ifndef GENERATING_DOXYGEN_OUTPUT
DEFINE_ENUM_OP_BITWISE(CUSTOMDRAW::ITEMSTATE)
DEFINE_ENUM_OP_BITWISE(CUSTOMDRAW::RETVALUE)
#endif

}  // End namespace MGUI

#endif   // INC_MGUI_CUSTOMDRAW_H

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