X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a9928e9d1ab76fd26557e2cf8e6715402639e999..985acf8734d61067c66b4812a9dd9da90d725851:/src/msw/pen.cpp

diff --git a/src/msw/pen.cpp b/src/msw/pen.cpp
index 3196fc92c7..a43d02b14d 100644
--- a/src/msw/pen.cpp
+++ b/src/msw/pen.cpp
@@ -1,52 +1,170 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        msw/pen.cpp
+// Name:        src/msw/pen.cpp
 // Purpose:     wxPen
 // Author:      Julian Smart
-// Modified by:
+// Modified by: Vadim Zeitlin: refactored wxPen code to wxPenRefData
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "pen.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/setup.h"
-#include "wx/list.h"
-#include "wx/utils.h"
-#include "wx/app.h"
 #include "wx/pen.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/bitmap.h"
+    #include "wx/utils.h"
 #endif
 
 #include "wx/msw/private.h"
 
-static int wx2msPenStyle(int wx_style);
+#define M_PENDATA ((wxPenRefData*)m_refData)
 
-IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
+// Win32 has ExtCreatePen() but WinCE doesn't
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    #define wxHAVE_EXT_CREATE_PEN
+#endif
+
+// ----------------------------------------------------------------------------
+// wxPenRefData: contains information about an HPEN and its handle
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxPenRefData : public wxGDIRefData
+{
+public:
+    // ctors and dtor
+    // --------------
+
+    wxPenRefData();
+    wxPenRefData(const wxPenRefData& data);
+    wxPenRefData(const wxColour& col, int width, int style);
+    wxPenRefData(const wxBitmap& stipple, int width);
+    virtual ~wxPenRefData();
+
+    bool operator==(const wxPenRefData& data) const
+    {
+        // we intentionally don't compare m_hPen fields here
+        return m_style == data.m_style &&
+               m_width == data.m_width &&
+               m_join == data.m_join &&
+               m_cap == data.m_cap &&
+               m_colour == data.m_colour &&
+               (m_style != wxSTIPPLE || m_stipple.IsSameAs(data.m_stipple)) &&
+               (m_style != wxUSER_DASH ||
+                (m_nbDash == data.m_nbDash &&
+                    memcmp(m_dash, data.m_dash, m_nbDash*sizeof(wxDash)) == 0));
+    }
+
+
+    // accessors and setters
+    // ---------------------
+
+    wxColour& GetColour() const { return wx_const_cast(wxColour&, m_colour); }
+    int GetWidth() const { return m_width; }
+    int GetStyle() const { return m_style; }
+    int GetJoin() const { return m_join; }
+    int GetCap() const { return m_cap; }
+    wxDash* GetDash() const { return m_dash; }
+    int GetDashCount() const { return m_nbDash; }
+    wxBitmap* GetStipple() const { return wx_const_cast(wxBitmap *, &m_stipple); }
+
+    void SetColour(const wxColour& col) { Free(); m_colour = col; }
+    void SetWidth(int width) { Free(); m_width = width; }
+    void SetStyle(int style) { Free(); m_style = style; }
+    void SetStipple(const wxBitmap& stipple)
+    {
+        Free();
+
+        m_style = wxSTIPPLE;
+        m_stipple = stipple;
+    }
+
+    void SetDashes(int nb_dashes, const wxDash *dash)
+    {
+        Free();
+
+        m_nbDash = nb_dashes;
+        m_dash = wx_const_cast(wxDash *, dash);
+    }
+
+    void SetJoin(int join) { Free(); m_join = join; }
+    void SetCap(int cap) { Free(); m_cap = cap; }
+
+
+    // HPEN management
+    // ---------------
+
+    // create the HPEN if we don't have it yet
+    bool Alloc();
+
+    // get the HPEN creating it on demand
+    WXHPEN GetHPEN() const;
+
+    // return true if we have a valid HPEN
+    bool HasHPEN() const { return m_hPen != 0; }
+
+    // return true if we had a valid handle before, false otherwise
+    bool Free();
+
+private:
+    // initialize the fields which have reasonable default values
+    //
+    // doesn't initialize m_width and m_style which must be initialize in ctor
+    void Init()
+    {
+        m_join = wxJOIN_ROUND;
+        m_cap = wxCAP_ROUND;
+        m_nbDash = 0;
+        m_dash = NULL;
+        m_hPen = 0;
+    }
+
+    int           m_width;
+    int           m_style;
+    int           m_join;
+    int           m_cap;
+    wxBitmap      m_stipple;
+    int           m_nbDash;
+    wxDash *      m_dash;
+    wxColour      m_colour;
+    HPEN          m_hPen;
+
+    DECLARE_NO_ASSIGN_CLASS(wxPenRefData)
+};
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxPenRefData ctors/dtor
+// ----------------------------------------------------------------------------
 
 wxPenRefData::wxPenRefData()
 {
-  m_style = wxSOLID;
-  m_width = 1;
-  m_join = wxJOIN_ROUND ;
-  m_cap = wxCAP_ROUND ;
-  m_nbDash = 0 ;
-  m_dash = (wxDash*)NULL;
-  m_hPen = 0;
+    Init();
+
+    m_style = wxSOLID;
+    m_width = 1;
 }
 
 wxPenRefData::wxPenRefData(const wxPenRefData& data)
+             :wxGDIRefData()
 {
     m_style = data.m_style;
     m_width = data.m_width;
@@ -58,382 +176,411 @@ wxPenRefData::wxPenRefData(const wxPenRefData& data)
     m_hPen = 0;
 }
 
-wxPenRefData::~wxPenRefData()
+wxPenRefData::wxPenRefData(const wxColour& col, int width, int style)
 {
-        if ( m_hPen )
-                ::DeleteObject((HPEN) m_hPen);
-}
+    Init();
 
-// Pens
+    m_style = style;
+    m_width = width;
+
+    m_colour = col;
+}
 
-wxPen::wxPen()
+wxPenRefData::wxPenRefData(const wxBitmap& stipple, int width)
 {
+    Init();
+
+    m_style = wxSTIPPLE;
+    m_width = width;
+
+    m_stipple = stipple;
 }
 
-wxPen::~wxPen()
+wxPenRefData::~wxPenRefData()
 {
+    if ( m_hPen )
+        ::DeleteObject(m_hPen);
 }
 
-// Should implement Create
-wxPen::wxPen(const wxColour& col, int Width, int Style)
+// ----------------------------------------------------------------------------
+// wxPenRefData HPEN management
+// ----------------------------------------------------------------------------
+
+static int ConvertPenStyle(int style)
 {
-  m_refData = new wxPenRefData;
+    switch ( style )
+    {
+        case wxSHORT_DASH:
+        case wxLONG_DASH:
+            return PS_DASH;
+
+        case wxTRANSPARENT:
+            return PS_NULL;
+
+        default:
+            wxFAIL_MSG( _T("unknown pen style") );
+            // fall through
+
+#ifdef wxHAVE_EXT_CREATE_PEN
+        case wxDOT:
+            return PS_DOT;
+
+        case wxDOT_DASH:
+            return PS_DASHDOT;
+
+        case wxUSER_DASH:
+            return PS_USERSTYLE;
+
+        case wxSTIPPLE:
+        case wxBDIAGONAL_HATCH:
+        case wxCROSSDIAG_HATCH:
+        case wxFDIAGONAL_HATCH:
+        case wxCROSS_HATCH:
+        case wxHORIZONTAL_HATCH:
+        case wxVERTICAL_HATCH:
+        case wxSOLID:
+#endif // wxHAVE_EXT_CREATE_PEN
+
+            return PS_SOLID;
+    }
+}
 
-  M_PENDATA->m_colour = col;
-//  M_PENDATA->m_stipple = NULL;
-  M_PENDATA->m_width = Width;
-  M_PENDATA->m_style = Style;
-  M_PENDATA->m_join = wxJOIN_ROUND ;
-  M_PENDATA->m_cap = wxCAP_ROUND ;
-  M_PENDATA->m_nbDash = 0 ;
-  M_PENDATA->m_dash = (wxDash*)NULL;
-  M_PENDATA->m_hPen = 0 ;
+#ifdef wxHAVE_EXT_CREATE_PEN
+
+static int ConvertJoinStyle(int join)
+{
+    switch( join )
+    {
+        case wxJOIN_BEVEL:
+            return PS_JOIN_BEVEL;
 
-#ifndef __WIN32__
-  // In Windows, only a pen of width = 1 can be dotted or dashed!
-  if ((Style == wxDOT) || (Style == wxLONG_DASH) ||
-      (Style == wxSHORT_DASH) || (Style == wxDOT_DASH) ||
-      (Style == wxUSER_DASH))
-    M_PENDATA->m_width = 1;
-#else
-/***
-  DWORD vers = GetVersion() ;
-  WORD  high = HIWORD(vers) ; // high bit=0 for NT, 1 for Win32s
-  // Win32s doesn't support wide dashed pens
+        case wxJOIN_MITER:
+            return PS_JOIN_MITER;
 
-  if ((high&0x8000)!=0)
-***/
-  if (wxGetOsVersion()==wxWIN32S)
-  {
-    // In Windows, only a pen of width = 1 can be dotted or dashed!
-    if ((Style == wxDOT) || (Style == wxLONG_DASH) ||
-        (Style == wxSHORT_DASH) || (Style == wxDOT_DASH) ||
-        (Style == wxUSER_DASH))
-      M_PENDATA->m_width = 1;
-  }
-#endif
-  RealizeResource();
+        default:
+            wxFAIL_MSG( _T("unknown pen join style") );
+            // fall through
 
+        case wxJOIN_ROUND:
+            return PS_JOIN_ROUND;
+    }
 }
 
-wxPen::wxPen(const wxBitmap& stipple, int Width)
+static int ConvertCapStyle(int cap)
 {
-    m_refData = new wxPenRefData;
+    switch ( cap )
+    {
+        case wxCAP_PROJECTING:
+            return PS_ENDCAP_SQUARE;
 
-//  M_PENDATA->m_colour = col;
-    M_PENDATA->m_stipple = stipple;
-    M_PENDATA->m_width = Width;
-    M_PENDATA->m_style = wxSTIPPLE;
-    M_PENDATA->m_join = wxJOIN_ROUND ;
-    M_PENDATA->m_cap = wxCAP_ROUND ;
-    M_PENDATA->m_nbDash = 0 ;
-    M_PENDATA->m_dash = (wxDash*)NULL;
-    M_PENDATA->m_hPen = 0 ;
+        case wxCAP_BUTT:
+            return PS_ENDCAP_FLAT;
 
-    RealizeResource();
+        default:
+            wxFAIL_MSG( _T("unknown pen cap style") );
+            // fall through
 
+        case wxCAP_ROUND:
+            return PS_ENDCAP_ROUND;
+    }
 }
 
-bool wxPen::RealizeResource()
+#endif // wxHAVE_EXT_CREATE_PEN
+
+bool wxPenRefData::Alloc()
 {
-   if (M_PENDATA && (M_PENDATA->m_hPen == 0))
+   if ( m_hPen )
+       return false;
+
+   if ( m_style == wxTRANSPARENT )
+   {
+       m_hPen = (HPEN)::GetStockObject(NULL_PEN);
+       return true;
+   }
+
+   const COLORREF col = m_colour.GetPixel();
+
+#ifdef wxHAVE_EXT_CREATE_PEN
+   // Only NT can display dashed or dotted lines with width > 1
+   static const int os = wxGetOsVersion();
+   if ( os != wxOS_WINDOWS_NT &&
+           (m_style == wxDOT ||
+            m_style == wxLONG_DASH ||
+            m_style == wxSHORT_DASH ||
+            m_style == wxDOT_DASH ||
+            m_style == wxUSER_DASH) &&
+            m_width > 1 )
+   {
+       m_width = 1;
+   }
+
+   // check if it's a standard kind of pen which can be created with just
+   // CreatePen()
+   if ( m_join == wxJOIN_ROUND &&
+            m_cap == wxCAP_ROUND &&
+                m_style != wxUSER_DASH &&
+                    m_style != wxSTIPPLE &&
+                        (m_width <= 1 || m_style == wxSOLID) )
+#endif // !wxHAVE_EXT_CREATE_PEN
    {
-       if (M_PENDATA->m_style==wxTRANSPARENT)
+       m_hPen = ::CreatePen(ConvertPenStyle(m_style), m_width, col);
+   }
+#ifdef wxHAVE_EXT_CREATE_PEN
+   else // need to use ExtCreatePen()
+   {
+       DWORD styleMSW = PS_GEOMETRIC |
+                        ConvertPenStyle(m_style) |
+                        ConvertJoinStyle(m_join) |
+                        ConvertCapStyle(m_cap);
+
+       LOGBRUSH lb;
+       switch( m_style )
        {
-           M_PENDATA->m_hPen = (WXHPEN) ::GetStockObject(NULL_PEN);
-           return TRUE;
+           case wxSTIPPLE:
+               lb.lbStyle = BS_PATTERN;
+               lb.lbHatch = (LONG)m_stipple.GetHBITMAP();
+               break;
+
+           case wxBDIAGONAL_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_BDIAGONAL;
+               break;
+
+           case wxCROSSDIAG_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_DIAGCROSS;
+               break;
+
+           case wxFDIAGONAL_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_FDIAGONAL;
+               break;
+
+           case wxCROSS_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_CROSS;
+               break;
+
+           case wxHORIZONTAL_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_HORIZONTAL;
+               break;
+
+           case wxVERTICAL_HATCH:
+               lb.lbStyle = BS_HATCHED;
+               lb.lbHatch = HS_VERTICAL;
+               break;
+
+           default:
+               lb.lbStyle = BS_SOLID;
+#ifdef __WXDEBUG__
+               // this should be unnecessary (it's unused) but suppresses the
+               // Purify messages about uninitialized memory read
+               lb.lbHatch = 0;
+#endif
+               break;
        }
 
-       COLORREF ms_colour = M_PENDATA->m_colour.GetPixel();
-
-       // Join style, Cap style, Pen Stippling only on Win32.
-       // Currently no time to find equivalent on Win3.1, sorry
-       // [if such equiv exist!!]
-#if defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-       if (M_PENDATA->m_join==wxJOIN_ROUND        &&
-           M_PENDATA->m_cap==wxCAP_ROUND          &&
-           M_PENDATA->m_style!=wxUSER_DASH        &&
-           M_PENDATA->m_style!=wxSTIPPLE          &&
-           M_PENDATA->m_width <= 1)
+       lb.lbColor = col;
+
+       DWORD *dash;
+       if ( m_style == wxUSER_DASH && m_nbDash && m_dash )
        {
-           M_PENDATA->m_hPen =
-             (WXHPEN) CreatePen( wx2msPenStyle(M_PENDATA->m_style),
-                                 M_PENDATA->m_width,
-                                 ms_colour );
+           dash = new DWORD[m_nbDash];
+           int rw = m_width > 1 ? m_width : 1;
+           for ( int i = 0; i < m_nbDash; i++ )
+               dash[i] = m_dash[i] * rw;
        }
        else
        {
-           DWORD ms_style = PS_GEOMETRIC | wx2msPenStyle(M_PENDATA->m_style);
-
-           switch(M_PENDATA->m_join)
-           {
-               case wxJOIN_BEVEL: ms_style |= PS_JOIN_BEVEL; break;
-               case wxJOIN_MITER: ms_style |= PS_JOIN_MITER; break;
-               default:
-               case wxJOIN_ROUND: ms_style |= PS_JOIN_ROUND; break;
-           }
-
-           switch(M_PENDATA->m_cap)
-           {
-               case wxCAP_PROJECTING: ms_style |= PS_ENDCAP_SQUARE;  break;
-               case wxCAP_BUTT:       ms_style |= PS_ENDCAP_FLAT;    break;
-               default:
-               case wxCAP_ROUND:      ms_style |= PS_ENDCAP_ROUND;   break;
-           }
-
-           LOGBRUSH logb;
-
-           switch(M_PENDATA->m_style)
-           {
-               case wxSTIPPLE:
-                   logb.lbStyle = BS_PATTERN ;
-                   if (M_PENDATA->m_stipple.Ok())
-                       logb.lbHatch = (LONG)M_PENDATA->m_stipple.GetHBITMAP();
-                   else
-                       logb.lbHatch = (LONG)0;
-                   break;
-               case wxBDIAGONAL_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_BDIAGONAL;
-                   break;
-               case wxCROSSDIAG_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_DIAGCROSS;
-                   break;
-               case wxFDIAGONAL_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_FDIAGONAL;
-                   break;
-               case wxCROSS_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_CROSS;
-                   break;
-               case wxHORIZONTAL_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_HORIZONTAL;
-                   break;
-               case wxVERTICAL_HATCH:
-                   logb.lbStyle = BS_HATCHED;
-                   logb.lbHatch = HS_VERTICAL;
-                   break;
-               default:
-                   logb.lbStyle = BS_SOLID;
-#ifdef __WXDEBUG__
-                   // this should be unnecessary (it's unused) but suppresses the Purigy
-                   // messages about uninitialized memory read
-                   logb.lbHatch = 0;
-#endif
-                   break;
-           }
-
-           logb.lbColor = ms_colour;
-
-           wxMSWDash *real_dash;
-           if (M_PENDATA->m_style==wxUSER_DASH && M_PENDATA->m_nbDash && M_PENDATA->m_dash)
-           {
-               real_dash = new wxMSWDash[M_PENDATA->m_nbDash];
-               int rw = M_PENDATA->m_width > 1 ? M_PENDATA->m_width : 1;
-               for ( int i = 0; i < M_PENDATA->m_nbDash; i++ )
-                   real_dash[i] = M_PENDATA->m_dash[i] * rw;
-           }
-           else
-           {
-               real_dash = (wxMSWDash*)NULL;
-           }
-
-           // Win32s doesn't have ExtCreatePen function...
-           if (wxGetOsVersion()==wxWINDOWS_NT || wxGetOsVersion()==wxWIN95)
-           {
-               M_PENDATA->m_hPen =
-                 (WXHPEN) ExtCreatePen( ms_style,
-                                        M_PENDATA->m_width,
-                                        &logb,
-                                        M_PENDATA->m_style == wxUSER_DASH
-                                          ? M_PENDATA->m_nbDash
-                                          : 0,
-                                        (LPDWORD)real_dash );
-           }
-           else
-           {
-               M_PENDATA->m_hPen =
-                  (WXHPEN) CreatePen( wx2msPenStyle(M_PENDATA->m_style),
-                                      M_PENDATA->m_width,
-                                      ms_colour );
-           }
-
-           if (real_dash)
-               delete [] real_dash;
+           dash = NULL;
        }
-#else
-       M_PENDATA->m_hPen =
-         (WXHPEN) CreatePen( wx2msPenStyle(M_PENDATA->m_style),
-                             M_PENDATA->m_width,
-                             ms_colour );
-#endif
-#ifdef WXDEBUG_CREATE
-       if (M_PENDATA->m_hPen==0)
-           wxError("Cannot create pen","Internal error") ;
-#endif
-       return TRUE;
-    }
-    return FALSE;
+
+       m_hPen = ::ExtCreatePen(styleMSW, m_width, &lb, m_nbDash, (LPDWORD)dash);
+
+       delete [] dash;
+   }
+#endif // wxHAVE_EXT_CREATE_PEN
+
+   return m_hPen != 0;
+}
+
+bool wxPenRefData::Free()
+{
+    if ( !m_hPen )
+        return false;
+
+    ::DeleteObject(m_hPen);
+    m_hPen = 0;
+
+    return true;
+}
+
+WXHPEN wxPenRefData::GetHPEN() const
+{
+    if ( !m_hPen )
+        wx_const_cast(wxPenRefData *, this)->Alloc();
+
+    return (WXHPEN)m_hPen;
+}
+
+// ----------------------------------------------------------------------------
+// wxPen
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
+
+wxPen::wxPen(const wxColour& col, int width, int style)
+{
+    m_refData = new wxPenRefData(col, width, style);
+}
+
+wxPen::wxPen(const wxBitmap& stipple, int width)
+{
+    m_refData = new wxPenRefData(stipple, width);
+}
+
+bool wxPen::operator==(const wxPen& pen) const
+{
+    const wxPenRefData *
+        penData = wx_static_cast(const wxPenRefData *, pen.m_refData);
+
+    // an invalid pen is only equal to another invalid pen
+    return m_refData ? penData && *M_PENDATA == *penData : !penData;
+}
+
+bool wxPen::RealizeResource()
+{
+    return M_PENDATA && M_PENDATA->Alloc();
 }
 
 WXHANDLE wxPen::GetResourceHandle() const
 {
-        if ( !M_PENDATA )
-                return 0;
-        else
-                return (WXHANDLE)M_PENDATA->m_hPen;
+    return M_PENDATA ? M_PENDATA->GetHPEN() : 0;
 }
 
 bool wxPen::FreeResource(bool WXUNUSED(force))
 {
-  if (M_PENDATA && (M_PENDATA->m_hPen != 0))
-  {
-    DeleteObject((HPEN) M_PENDATA->m_hPen);
-    M_PENDATA->m_hPen = 0;
-    return TRUE;
-  }
-  else return FALSE;
+    return M_PENDATA && M_PENDATA->Free();
 }
 
 bool wxPen::IsFree() const
 {
-  return (M_PENDATA && M_PENDATA->m_hPen == 0);
+    return M_PENDATA && !M_PENDATA->HasHPEN();
 }
 
-void wxPen::Unshare()
+wxObjectRefData* wxPen::CreateRefData() const
 {
-        // Don't change shared data
-        if (!m_refData)
-    {
-                m_refData = new wxPenRefData();
-        }
-    else
-    {
-                wxPenRefData* ref = new wxPenRefData(*(wxPenRefData*)m_refData);
-                UnRef();
-                m_refData = ref;
-        }
+    return new wxPenRefData;
 }
 
-void wxPen::SetColour(const wxColour& col)
+wxObjectRefData* wxPen::CloneRefData(const wxObjectRefData* data) const
 {
-    Unshare();
+    return new wxPenRefData(*wx_static_cast(const wxPenRefData*, data));
+}
 
-    M_PENDATA->m_colour = col;
+void wxPen::SetColour(const wxColour& col)
+{
+    AllocExclusive();
 
-    RealizeResource();
+    M_PENDATA->SetColour(col);
 }
 
 void wxPen::SetColour(unsigned char r, unsigned char g, unsigned char b)
 {
-    Unshare();
+    SetColour(wxColour(r, g, b));
+}
 
-    M_PENDATA->m_colour.Set(r, g, b);
+void wxPen::SetWidth(int width)
+{
+    AllocExclusive();
 
-    RealizeResource();
+    M_PENDATA->SetWidth(width);
 }
 
-void wxPen::SetWidth(int Width)
+void wxPen::SetStyle(int style)
 {
-    Unshare();
-
-    M_PENDATA->m_width = Width;
+    AllocExclusive();
 
-    RealizeResource();
+    M_PENDATA->SetStyle(style);
 }
 
-void wxPen::SetStyle(int Style)
+void wxPen::SetStipple(const wxBitmap& stipple)
 {
-    Unshare();
-
-    M_PENDATA->m_style = Style;
+    AllocExclusive();
 
-    RealizeResource();
+    M_PENDATA->SetStipple(stipple);
 }
 
-void wxPen::SetStipple(const wxBitmap& Stipple)
+void wxPen::SetDashes(int nb_dashes, const wxDash *dash)
 {
-    Unshare();
+    AllocExclusive();
 
-    M_PENDATA->m_stipple = Stipple;
-    M_PENDATA->m_style = wxSTIPPLE;
+    M_PENDATA->SetDashes(nb_dashes, dash);
+}
 
-    RealizeResource();
+void wxPen::SetJoin(int join)
+{
+    AllocExclusive();
+
+    M_PENDATA->SetJoin(join);
 }
 
-void wxPen::SetDashes(int nb_dashes, const wxDash *Dash)
+void wxPen::SetCap(int cap)
 {
-    Unshare();
+    AllocExclusive();
 
-    M_PENDATA->m_nbDash = nb_dashes;
-    M_PENDATA->m_dash = (wxDash *)Dash;
+    M_PENDATA->SetCap(cap);
+}
 
-    RealizeResource();
+wxColour& wxPen::GetColour() const
+{
+    return m_refData ? M_PENDATA->GetColour() : wxNullColour;
 }
 
-void wxPen::SetJoin(int Join)
+int wxPen::GetWidth() const
 {
-    Unshare();
+    return m_refData ? M_PENDATA->GetWidth() : 0;
+}
 
-    M_PENDATA->m_join = Join;
+int wxPen::GetStyle() const
+{
+    return m_refData ? M_PENDATA->GetStyle() : 0;
+}
 
-    RealizeResource();
+int wxPen::GetJoin() const
+{
+    return m_refData ? M_PENDATA->GetJoin() : 0;
 }
 
-void wxPen::SetCap(int Cap)
+int wxPen::GetCap() const
 {
-    Unshare();
+    return m_refData ? M_PENDATA->GetCap() : 0;
+}
 
-    M_PENDATA->m_cap = Cap;
+int wxPen::GetDashes(wxDash** ptr) const
+{
+    if ( !m_refData )
+    {
+        *ptr = NULL;
+        return 0;
+    }
 
-    RealizeResource();
+    *ptr = M_PENDATA->GetDash();
+    return M_PENDATA->GetDashCount();
 }
 
-int wx2msPenStyle(int wx_style)
+wxDash* wxPen::GetDash() const
 {
-    int cstyle = PS_SOLID;
-    switch (wx_style)
-    {
-#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-       case wxDOT:
-           cstyle = PS_DOT;
-           break;
-
-       case wxDOT_DASH:
-           cstyle = PS_DASHDOT;
-           break;
-
-       case wxSHORT_DASH:
-       case wxLONG_DASH:
-           cstyle = PS_DASH;
-           break;
-
-       case wxTRANSPARENT:
-           cstyle = PS_NULL;
-           break;
-#endif
+    return m_refData ? M_PENDATA->GetDash() : NULL;
+}
 
-       case wxUSER_DASH:
-#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-#ifdef __WIN32__
-           // Win32s doesn't have PS_USERSTYLE
-           if (wxGetOsVersion()==wxWINDOWS_NT || wxGetOsVersion()==wxWIN95)
-               cstyle = PS_USERSTYLE;
-           else
-               cstyle = PS_DOT; // We must make a choice... This is mine!
-#else
-           cstyle = PS_DASH;
-#endif
-#endif
-           break;
-       case wxSOLID:
-       default:
-           cstyle = PS_SOLID;
-           break;
-   }
-   return cstyle;
+int wxPen::GetDashCount() const
+{
+    return m_refData ? M_PENDATA->GetDashCount() : 0;
 }
 
+wxBitmap* wxPen::GetStipple() const
+{
+    return m_refData ? M_PENDATA->GetStipple() : NULL;
+}