include/wx/msw/pen.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        pen.h
   3 // Purpose:     wxPen class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_PEN_H_
  13 #define _WX_PEN_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "pen.h"
  17 #endif
  18
  19 #include "wx/gdiobj.h"
  20 #include "wx/bitmap.h"
  21 #include "wx/colour.h"
  22
  23 typedef WXDWORD wxMSWDash;
  24
  25 class WXDLLEXPORT wxPen;
  26
  27 class WXDLLEXPORT wxPenRefData: public wxGDIRefData
  28 {
  29     friend class WXDLLEXPORT wxPen;
  30 public:
  31     wxPenRefData();
  32     wxPenRefData(const wxPenRefData& data);
  33     ~wxPenRefData();
  34
  35 protected:
  36   int           m_width;
  37   int           m_style;
  38   int           m_join ;
  39   int           m_cap ;
  40   wxBitmap      m_stipple ;
  41   int           m_nbDash ;
  42   wxDash *      m_dash ;
  43   wxColour      m_colour;
  44   WXHPEN        m_hPen;
  45
  46 private:
  47 // Cannot use
  48 //  DECLARE_NO_COPY_CLASS(wxPenRefData)
  49 // because copy constructor is explicitly declared above;
  50 // but no copy assignment operator is defined, so declare
  51 // it private to prevent the compiler from defining it:
  52     wxPenRefData& operator=(const wxPenRefData&);
  53 };
  54
  55 #define M_PENDATA ((wxPenRefData *)m_refData)
  56 #define wxPENDATA(x) ((wxPenRefData *)(x).m_refData)
  57
  58 // Pen
  59 class WXDLLEXPORT wxPen: public wxGDIObject
  60 {
  61   DECLARE_DYNAMIC_CLASS(wxPen)
  62 public:
  63   wxPen();
  64   wxPen(const wxColour& col, int width = 1, int style = wxSOLID);
  65   wxPen(const wxBitmap& stipple, int width);
  66   inline wxPen(const wxPen& pen) { Ref(pen); }
  67   ~wxPen();
  68
  69   inline wxPen& operator = (const wxPen& pen) { if (*this == pen) return (*this); Ref(pen); return *this; }
  70   inline bool operator == (const wxPen& pen) const
  71   {
  72       // It is impossible to know if the user dashes have changed,
  73       // so we must assume that they have
  74       if ( m_refData && pen.m_refData )
  75       {
  76           if ( M_PENDATA->m_nbDash != 0 || wxPENDATA(pen)->m_nbDash != 0 )
  77               return false;
  78       }
  79       return m_refData == pen.m_refData;
  80   }
  81   inline bool operator != (const wxPen& pen) const
  82   {
  83       // It is impossible to know if the user dashes have changed,
  84       // so we must assume that they have
  85       if ( m_refData && pen.m_refData )
  86       {
  87           if ( M_PENDATA->m_nbDash != 0 || wxPENDATA(pen)->m_nbDash != 0 )
  88               return true;
  89       }
  90       return m_refData != pen.m_refData;
  91   }
  92
  93   virtual bool Ok() const { return (m_refData != NULL) ; }
  94
  95   // Override in order to recreate the pen
  96   void SetColour(const wxColour& col) ;
  97   void SetColour(unsigned char r, unsigned char g, unsigned char b);
  98
  99   void SetWidth(int width)  ;
 100   void SetStyle(int style)  ;
 101   void SetStipple(const wxBitmap& stipple)  ;
 102   void SetDashes(int nb_dashes, const wxDash *dash)  ;
 103   void SetJoin(int join)  ;
 104   void SetCap(int cap)  ;
 105
 106   inline wxColour& GetColour() const { return (M_PENDATA ? M_PENDATA->m_colour : wxNullColour); };
 107   inline int GetWidth() const { return (M_PENDATA ? M_PENDATA->m_width : 0); };
 108   inline int GetStyle() const { return (M_PENDATA ? M_PENDATA->m_style : 0); };
 109   inline int GetJoin() const { return (M_PENDATA ? M_PENDATA->m_join : 0); };
 110   inline int GetCap() const { return (M_PENDATA ? M_PENDATA->m_cap : 0); };
 111   inline int GetDashes(wxDash **ptr) const
 112   {
 113     *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 114     return (M_PENDATA ? M_PENDATA->m_nbDash : 0);
 115   }
 116
 117   inline wxBitmap *GetStipple() const { return (M_PENDATA ? (& M_PENDATA->m_stipple) : (wxBitmap*) NULL); };
 118
 119   // Internal
 120   bool RealizeResource();
 121   bool FreeResource(bool force = FALSE);
 122   WXHANDLE GetResourceHandle() const;
 123   bool IsFree() const;
 124   void Unshare();
 125 };
 126
 127 int wx2msPenStyle(int wx_style);
 128
 129 #endif
 130     // _WX_PEN_H_