Borland still hates ?

[wxWidgets.git] / src / msw / dc.cpp

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index 11570c8c40e1afef4fa11d973ec704fce2eeb853..d1ef3afda27e39003400ca520954010e31a4420e 100644 (file)
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -25,6 +25,7 @@
 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

+    #include "wx/msw/wrapcdlg.h"

     #include "wx/image.h"
     #include "wx/window.h"
     #include "wx/dc.h"
     #include "wx/image.h"
     #include "wx/window.h"
     #include "wx/dc.h"


@@ -36,10 +37,10 @@
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/dcprint.h"
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/dcprint.h"

+    #include "wx/module.h"

 #endif
 
 #include "wx/sysopt.h"
 #endif
 
 #include "wx/sysopt.h"

-#include "wx/module.h"

 #include "wx/dynlib.h"
 
 #ifdef wxHAVE_RAW_BITMAP
 #include "wx/dynlib.h"
 
 #ifdef wxHAVE_RAW_BITMAP


@@ -48,13 +49,16 @@
 
 #include <string.h>
 
 
 #include <string.h>
 

-#include "wx/msw/wrapcdlg.h"

 #ifndef __WIN32__
     #include <print.h>
 #endif
 
 #ifndef AC_SRC_ALPHA
 #ifndef __WIN32__
     #include <print.h>
 #endif
 
 #ifndef AC_SRC_ALPHA

-#define AC_SRC_ALPHA 1
+    #define AC_SRC_ALPHA 1
+#endif
+
+#ifndef LAYOUT_RTL
+    #define LAYOUT_RTL 1

 #endif
 
 /* Quaternary raster codes */
 #endif
 
 /* Quaternary raster codes */


@@ -126,16 +130,21 @@ static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 // return true if we could draw the bitmap in one way or the other, false
 // otherwise
 static bool AlphaBlt(HDC hdcDst,
 // return true if we could draw the bitmap in one way or the other, false
 // otherwise
 static bool AlphaBlt(HDC hdcDst,

-                     int x, int y, int w, int h,
-                     int srcX, int srcY, HDC hdcSrc,
-                     const wxBitmap& bmpSrc);
+                     int x, int y, int dstWidth, int dstHeight,
+                     int srcX, int srcY, 
+                     int srcWidth, int srcHeight,
+                     HDC hdcSrc,
+                     const wxBitmap& bmp);

 
 #ifdef wxHAVE_RAW_BITMAP
 
 // our (limited) AlphaBlend() replacement for Windows versions not providing it
 static void
 
 #ifdef wxHAVE_RAW_BITMAP
 
 // our (limited) AlphaBlend() replacement for Windows versions not providing it
 static void

-wxAlphaBlend(HDC hdcDst, int x, int y, int w, int h,
-             int srcX, int srcY, const wxBitmap& bmp);
+wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
+             int dstWidth, int dstHeight,
+             int srcX, int srcY, 
+             int srcWidth, int srcHeight,
+             const wxBitmap& bmpSrc);

 
 #endif // wxHAVE_RAW_BITMAP
 
 
 #endif // wxHAVE_RAW_BITMAP
 


@@ -196,36 +205,48 @@ private:
     DECLARE_NO_COPY_CLASS(StretchBltModeChanger)
 };
 
     DECLARE_NO_COPY_CLASS(StretchBltModeChanger)
 };
 

-// support for dynamic loading of msimg32.dll which we use for some functions
-class wxMSImg32DLL
+#if wxUSE_DYNLIB_CLASS
+
+// helper class to cache dynamically loaded libraries and not attempt reloading
+// them if it fails
+class wxOnceOnlyDLLLoader

 {
 public:
 {
 public:

-    // return the symbol with the given name if the DLL not loaded or symbol
-    // not present
-    static void *GetSymbol(const wxChar *name)
+    // ctor argument must be a literal string as we don't make a copy of it!
+    wxOnceOnlyDLLLoader(const wxChar *dllName)
+        : m_dllName(dllName)

     {
     {

+    }
+
+
+    // return the symbol with the given name or NULL if the DLL not loaded
+    // or symbol not present
+    void *GetSymbol(const wxChar *name)
+    {
+        // we're prepared to handle errors here

         wxLogNull noLog;
 
         wxLogNull noLog;
 

-        if ( !ms_triedToLoad )
+        if ( m_dllName )

         {
         {

-            ms_triedToLoad = true;
-            ms_dll.Load(_T("msimg32"));
+            m_dll.Load(m_dllName);
+
+            // reset the name whether we succeeded or failed so that we don't
+            // try again the next time
+            m_dllName = NULL;

         }
 
         }
 

-        return ms_dll.IsLoaded() ? ms_dll.GetSymbol(name) : NULL;
+        return m_dll.IsLoaded() ? m_dll.GetSymbol(name) : NULL;

     }
 
 private:
     }
 
 private:

-    static wxDynamicLibrary ms_dll;
-    static bool ms_triedToLoad;
+    wxDynamicLibrary m_dll;
+    const wxChar *m_dllName;

 };
 
 };
 

-wxDynamicLibrary wxMSImg32DLL::ms_dll;
-bool wxMSImg32DLL::ms_triedToLoad = false;
+static wxOnceOnlyDLLLoader wxGDI32DLL(_T("gdi32"));
+static wxOnceOnlyDLLLoader wxMSIMG32DLL(_T("msimg32"));

 
 

-// helper macro for getting the symbols from msimg32.dll: it supposes that a
-// type "name_t" is defined and casts the returned symbol to it automatically
-#define wxMSIMG32_SYMBOL(name) (name ## _t)wxMSImg32DLL::GetSymbol(_T(#name))
+#endif // wxUSE_DYNLIB_CLASS

 
 // ===========================================================================
 // implementation
 
 // ===========================================================================
 // implementation


@@ -554,9 +575,9 @@ void wxDC::Clear()
         if (!m_selectedBitmap.Ok())
             return;
 
         if (!m_selectedBitmap.Ok())
             return;
 

-        rect.left = 0; rect.top = 0;
-        rect.right = m_selectedBitmap.GetWidth();
-        rect.bottom = m_selectedBitmap.GetHeight();
+        rect.left = -m_deviceOriginX; rect.top = -m_deviceOriginY;
+        rect.right = m_selectedBitmap.GetWidth()-m_deviceOriginX;
+        rect.bottom = m_selectedBitmap.GetHeight()-m_deviceOriginY;

     }
 
 #ifndef __WXWINCE__
     }
 
 #ifndef __WXWINCE__


@@ -568,17 +589,7 @@ void wxDC::Clear()
     ::FillRect(GetHdc(), &rect, brush);
     ::DeleteObject(brush);
 
     ::FillRect(GetHdc(), &rect, brush);
     ::DeleteObject(brush);
 

-#ifndef __WXWINCE__
-    int width = DeviceToLogicalXRel(VIEWPORT_EXTENT)*m_signX,
-        height = DeviceToLogicalYRel(VIEWPORT_EXTENT)*m_signY;
-
-    ::SetMapMode(GetHdc(), MM_ANISOTROPIC);
-
-    ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
-    ::SetWindowExtEx(GetHdc(), width, height, NULL);
-    ::SetViewportOrgEx(GetHdc(), (int)m_deviceOriginX, (int)m_deviceOriginY, NULL);
-    ::SetWindowOrgEx(GetHdc(), (int)m_logicalOriginX, (int)m_logicalOriginY, NULL);
-#endif
+    RealizeScaleAndOrigin();

 }
 
 bool wxDC::DoFloodFill(wxCoord WXUNUSED_IN_WINCE(x),
 }
 
 bool wxDC::DoFloodFill(wxCoord WXUNUSED_IN_WINCE(x),


@@ -918,7 +929,7 @@ void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
         // transparent pen) one pixel smaller in both directions and we want them
         // to have the same size regardless of which pen is used - adjust
 
         // transparent pen) one pixel smaller in both directions and we want them
         // to have the same size regardless of which pen is used - adjust
 

-        // I wonder if this shouldn´t be done after the LOG2DEV() conversions. RR.
+        // I wonder if this shouldnt be done after the LOG2DEV() conversions. RR.

         if ( m_pen.GetStyle() == wxTRANSPARENT )
         {
             // Apparently not needed for WinCE (see e.g. Life! demo)
         if ( m_pen.GetStyle() == wxTRANSPARENT )
         {
             // Apparently not needed for WinCE (see e.g. Life! demo)


@@ -1171,7 +1182,7 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
         MemoryHDC hdcMem;
         SelectInHDC select(hdcMem, GetHbitmapOf(bmp));
 
         MemoryHDC hdcMem;
         SelectInHDC select(hdcMem, GetHbitmapOf(bmp));
 

-        if ( AlphaBlt(GetHdc(), x, y, width, height, 0, 0, hdcMem, bmp) )
+        if ( AlphaBlt(GetHdc(), x, y, width, height, 0, 0, width, height, hdcMem, bmp) )

             return;
     }
 
             return;
     }
 


@@ -1233,7 +1244,8 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
             // Rather than reproduce wxDC::Blit, let's do it at the wxWin API
             // level
             wxMemoryDC memDC;
             // Rather than reproduce wxDC::Blit, let's do it at the wxWin API
             // level
             wxMemoryDC memDC;

-            memDC.SelectObject(bmp);
+
+            memDC.SelectObjectAsSource(bmp);

 
             Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 
 
             Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 


@@ -1713,7 +1725,7 @@ wxCoord wxDC::GetCharWidth() const
 
 void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
                            wxCoord *descent, wxCoord *externalLeading,
 
 void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
                            wxCoord *descent, wxCoord *externalLeading,

-                           wxFont *font) const
+                           const wxFont *font) const

 {
 #ifdef __WXMICROWIN__
     if (!GetHDC())
 {
 #ifdef __WXMICROWIN__
     if (!GetHDC())


@@ -1740,7 +1752,7 @@ void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
 
     SIZE sizeRect;
     const size_t len = string.length();
 
     SIZE sizeRect;
     const size_t len = string.length();

-    if ( !::GetTextExtentPoint32(GetHdc(), string, len, &sizeRect) )
+    if ( !::GetTextExtentPoint32(GetHdc(), string.wx_str(), len, &sizeRect) )

     {
         wxLogLastError(_T("GetTextExtentPoint32()"));
     }
     {
         wxLogLastError(_T("GetTextExtentPoint32()"));
     }


@@ -1807,8 +1819,8 @@ bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) con
     {
         // Win9x and WinNT+ have different limits
         int version = wxGetOsVersion();
     {
         // Win9x and WinNT+ have different limits
         int version = wxGetOsVersion();

-        maxLenText = version == wxWINDOWS_NT ? 65535 : 8192;
-        maxWidth =   version == wxWINDOWS_NT ? INT_MAX : 32767;
+        maxLenText = version == wxOS_WINDOWS_NT ? 65535 : 8192;
+        maxWidth =   version == wxOS_WINDOWS_NT ? INT_MAX : 32767;

     }
 
     widths.Empty();
     }
 
     widths.Empty();


@@ -1833,8 +1845,25 @@ bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) con
     return true;
 }
 
     return true;
 }
 

+void wxDC::RealizeScaleAndOrigin()
+{
+    // VZ: it seems very wasteful to always use MM_ANISOTROPIC when in 99% of
+    //     cases we could do with MM_TEXT and in the remaining 0.9% with
+    //     MM_ISOTROPIC (TODO!)
+#ifndef __WXWINCE__
+    ::SetMapMode(GetHdc(), MM_ANISOTROPIC);
+
+    int width = DeviceToLogicalXRel(VIEWPORT_EXTENT)*m_signX,
+        height = DeviceToLogicalYRel(VIEWPORT_EXTENT)*m_signY;

 
 

+    ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
+    ::SetWindowExtEx(GetHdc(), width, height, NULL);

 
 

+    ::SetViewportOrgEx(GetHdc(), m_deviceOriginX, m_deviceOriginY, NULL);
+    ::SetWindowOrgEx(GetHdc(), m_logicalOriginX, m_logicalOriginY, NULL);
+#endif
+    
+}

 
 void wxDC::SetMapMode(int mode)
 {
 
 void wxDC::SetMapMode(int mode)
 {


@@ -1889,22 +1918,10 @@ void wxDC::SetMapMode(int mode)
                 wxFAIL_MSG( _T("unknown mapping mode in SetMapMode") );
         }
     }
                 wxFAIL_MSG( _T("unknown mapping mode in SetMapMode") );
         }
     }

-
-    // VZ: it seems very wasteful to always use MM_ANISOTROPIC when in 99% of
-    //     cases we could do with MM_TEXT and in the remaining 0.9% with
-    //     MM_ISOTROPIC (TODO!)
-#ifndef __WXWINCE__
-    ::SetMapMode(GetHdc(), MM_ANISOTROPIC);
-
-    int width = DeviceToLogicalXRel(VIEWPORT_EXTENT)*m_signX,
-        height = DeviceToLogicalYRel(VIEWPORT_EXTENT)*m_signY;
-
-    ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
-    ::SetWindowExtEx(GetHdc(), width, height, NULL);
-
-    ::SetViewportOrgEx(GetHdc(), m_deviceOriginX, m_deviceOriginY, NULL);
-    ::SetWindowOrgEx(GetHdc(), m_logicalOriginX, m_logicalOriginY, NULL);
-#endif
+    
+    ComputeScaleAndOrigin();
+    
+    RealizeScaleAndOrigin();

 }
 
 void wxDC::SetUserScale(double x, double y)
 }
 
 void wxDC::SetUserScale(double x, double y)


@@ -1914,44 +1931,25 @@ void wxDC::SetUserScale(double x, double y)
     if ( x == m_userScaleX && y == m_userScaleY )
         return;
 
     if ( x == m_userScaleX && y == m_userScaleY )
         return;
 

-    m_userScaleX = x;
-    m_userScaleY = y;
-
-    this->SetMapMode(m_mappingMode);
+    wxDCBase::SetUserScale(x,y);
+    
+    RealizeScaleAndOrigin();

 }
 
 }
 

-void wxDC::SetAxisOrientation(bool WXUNUSED_IN_WINCE(xLeftRight),
-                              bool WXUNUSED_IN_WINCE(yBottomUp))
+void wxDC::SetAxisOrientation(bool xLeftRight,
+                              bool yBottomUp)

 {
     WXMICROWIN_CHECK_HDC
 
 {
     WXMICROWIN_CHECK_HDC
 

-#ifndef __WXWINCE__

     int signX = xLeftRight ? 1 : -1,
         signY = yBottomUp ? -1 : 1;
     int signX = xLeftRight ? 1 : -1,
         signY = yBottomUp ? -1 : 1;

-
-    if ( signX != m_signX || signY != m_signY )
-    {
-        m_signX = signX;
-        m_signY = signY;
-
-        SetMapMode(m_mappingMode);
-    }
-#endif
-}
-
-void wxDC::SetSystemScale(double x, double y)
-{
-    WXMICROWIN_CHECK_HDC
-
-    if ( x == m_scaleX && y == m_scaleY )
+        
+    if (signX == m_signX && signY == m_signY)

         return;
         return;

+    
+    wxDCBase::SetAxisOrientation( xLeftRight, yBottomUp );

 
 

-    m_scaleX = x;
-    m_scaleY = y;
-
-#ifndef __WXWINCE__
-    SetMapMode(m_mappingMode);
-#endif
+    RealizeScaleAndOrigin();

 }
 
 void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y)
 }
 
 void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y)


@@ -1961,8 +1959,7 @@ void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y)
     if ( x == m_logicalOriginX && y == m_logicalOriginY )
         return;
 
     if ( x == m_logicalOriginX && y == m_logicalOriginY )
         return;
 

-    m_logicalOriginX = x;
-    m_logicalOriginY = y;
+    wxDCBase::SetLogicalOrigin( x, y );

 
 #ifndef __WXWINCE__
     ::SetWindowOrgEx(GetHdc(), (int)m_logicalOriginX, (int)m_logicalOriginY, NULL);
 
 #ifndef __WXWINCE__
     ::SetWindowOrgEx(GetHdc(), (int)m_logicalOriginX, (int)m_logicalOriginY, NULL);


@@ -1975,70 +1972,33 @@ void wxDC::SetDeviceOrigin(wxCoord x, wxCoord y)
 
     if ( x == m_deviceOriginX && y == m_deviceOriginY )
         return;
 
     if ( x == m_deviceOriginX && y == m_deviceOriginY )
         return;

-
-    m_deviceOriginX = x;
-    m_deviceOriginY = y;
+        
+    wxDCBase::SetDeviceOrigin( x, y );

 
     ::SetViewportOrgEx(GetHdc(), (int)m_deviceOriginX, (int)m_deviceOriginY, NULL);
 }
 
 // ---------------------------------------------------------------------------
 
     ::SetViewportOrgEx(GetHdc(), (int)m_deviceOriginX, (int)m_deviceOriginY, NULL);
 }
 
 // ---------------------------------------------------------------------------

-// coordinates transformations
+// bit blit

 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 

-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
-{
-    return DeviceToLogicalXRel(x - m_deviceOriginX)*m_signX + m_logicalOriginX;
-}
-
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
-{
-    // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord)(x / (m_logicalScaleX*m_userScaleX*m_scaleX));
-}
-
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
-{
-    return DeviceToLogicalYRel(y - m_deviceOriginY)*m_signY + m_logicalOriginY;
-}
-
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
-{
-    // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord)( y / (m_logicalScaleY*m_userScaleY*m_scaleY));
-}
-
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
-{
-    return LogicalToDeviceXRel(x - m_logicalOriginX)*m_signX + m_deviceOriginX;
-}
-
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
-{
-    // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_scaleX);
-}
-
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
+bool wxDC::DoBlit(wxCoord dstX, wxCoord dstY,
+                  wxCoord dstWidth, wxCoord dstHeight,
+                  wxDC *source,
+                  wxCoord srcX, wxCoord srcY,
+                  int rop, bool useMask,
+                  wxCoord srcMaskX, wxCoord srcMaskY)

 {
 {

-    return LogicalToDeviceYRel(y - m_logicalOriginY)*m_signY + m_deviceOriginY;
+    return DoStretchBlit(dstX, dstY, dstWidth, dstHeight, source, srcX, srcY, dstWidth, dstHeight, rop, useMask, srcMaskX, srcMaskY);

 }
 
 }
 

-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
-{
-    // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY);
-}
-
-// ---------------------------------------------------------------------------
-// bit blit
-// ---------------------------------------------------------------------------
-
-bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
-                  wxCoord width, wxCoord height,
-                  wxDC *source, wxCoord xsrc, wxCoord ysrc,
-                  int rop, bool useMask,
-                  wxCoord xsrcMask, wxCoord ysrcMask)
+bool wxDC::DoStretchBlit(wxCoord xdest, wxCoord ydest,
+                         wxCoord dstWidth, wxCoord dstHeight,
+                         wxDC *source,
+                         wxCoord xsrc, wxCoord ysrc,
+                         wxCoord srcWidth, wxCoord srcHeight,
+                         int rop, bool useMask,
+                         wxCoord xsrcMask, wxCoord ysrcMask)

 {
     wxCHECK_MSG( source, false, _T("wxDC::Blit(): NULL wxDC pointer") );
 
 {
     wxCHECK_MSG( source, false, _T("wxDC::Blit(): NULL wxDC pointer") );
 


@@ -2050,8 +2010,8 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
     if ( bmpSrc.Ok() && (bmpSrc.HasAlpha() ||
             (m_selectedBitmap.Ok() && m_selectedBitmap.HasAlpha())) )
     {
     if ( bmpSrc.Ok() && (bmpSrc.HasAlpha() ||
             (m_selectedBitmap.Ok() && m_selectedBitmap.HasAlpha())) )
     {

-        if ( AlphaBlt(GetHdc(), xdest, ydest, width, height,
-                      xsrc, ysrc, GetHdcOf(*source), bmpSrc) )
+        if ( AlphaBlt(GetHdc(), xdest, ydest, dstWidth, dstHeight,
+                      xsrc, ysrc, srcWidth, srcHeight, GetHdcOf(*source), bmpSrc) )

             return true;
     }
 
             return true;
     }
 


@@ -2125,16 +2085,19 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
         if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0)
 #endif
         {
         if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0)
 #endif
         {

-           success = ::MaskBlt
-                       (
+            if ( dstWidth == srcWidth && dstHeight == srcHeight )
+            {
+                success = ::MaskBlt
+                            (

                             GetHdc(),
                             GetHdc(),

-                            xdest, ydest, width, height,
+                            xdest, ydest, dstWidth, dstHeight,

                             GetHdcOf(*source),
                             xsrc, ysrc,
                             (HBITMAP)mask->GetMaskBitmap(),
                             xsrcMask, ysrcMask,
                             MAKEROP4(dwRop, DSTCOPY)
                             GetHdcOf(*source),
                             xsrc, ysrc,
                             (HBITMAP)mask->GetMaskBitmap(),
                             xsrcMask, ysrcMask,
                             MAKEROP4(dwRop, DSTCOPY)

-                        ) != 0;
+                            ) != 0;
+            }

         }
 
         if ( !success )
         }
 
         if ( !success )


@@ -2154,55 +2117,59 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
             dc_buffer = (HDC) dcCacheEntry2->m_dc;
 
             wxDCCacheEntry* bitmapCacheEntry = FindBitmapInCache(GetHDC(),
             dc_buffer = (HDC) dcCacheEntry2->m_dc;
 
             wxDCCacheEntry* bitmapCacheEntry = FindBitmapInCache(GetHDC(),

-                width, height);
+                dstWidth, dstHeight);

 
             buffer_bmap = (HBITMAP) bitmapCacheEntry->m_bitmap;
 #else // !wxUSE_DC_CACHEING
             // create a temp buffer bitmap and DCs to access it and the mask
             dc_mask = ::CreateCompatibleDC(GetHdcOf(*source));
             dc_buffer = ::CreateCompatibleDC(GetHdc());
 
             buffer_bmap = (HBITMAP) bitmapCacheEntry->m_bitmap;
 #else // !wxUSE_DC_CACHEING
             // create a temp buffer bitmap and DCs to access it and the mask
             dc_mask = ::CreateCompatibleDC(GetHdcOf(*source));
             dc_buffer = ::CreateCompatibleDC(GetHdc());

-            buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), width, height);
+            buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), dstWidth, dstHeight);

 #endif // wxUSE_DC_CACHEING/!wxUSE_DC_CACHEING
             HGDIOBJ hOldMaskBitmap = ::SelectObject(dc_mask, (HBITMAP) mask->GetMaskBitmap());
             HGDIOBJ hOldBufferBitmap = ::SelectObject(dc_buffer, buffer_bmap);
 
             // copy dest to buffer
 #endif // wxUSE_DC_CACHEING/!wxUSE_DC_CACHEING
             HGDIOBJ hOldMaskBitmap = ::SelectObject(dc_mask, (HBITMAP) mask->GetMaskBitmap());
             HGDIOBJ hOldBufferBitmap = ::SelectObject(dc_buffer, buffer_bmap);
 
             // copy dest to buffer

-            if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height,
+            if ( !::BitBlt(dc_buffer, 0, 0, (int)dstWidth, (int)dstHeight,

                            GetHdc(), xdest, ydest, SRCCOPY) )
             {
                 wxLogLastError(wxT("BitBlt"));
             }
 
                            GetHdc(), xdest, ydest, SRCCOPY) )
             {
                 wxLogLastError(wxT("BitBlt"));
             }
 

+#ifndef __WXWINCE__
+            StretchBltModeChanger changeMode(dc_buffer, COLORONCOLOR);
+#endif
+

             // copy src to buffer using selected raster op
             // copy src to buffer using selected raster op

-            if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height,
-                           GetHdcOf(*source), xsrc, ysrc, dwRop) )
+            if ( !::StretchBlt(dc_buffer, 0, 0, (int)dstWidth, (int)dstHeight,
+                           GetHdcOf(*source), xsrc, ysrc, srcWidth, srcHeight, dwRop) )

             {
             {

-                wxLogLastError(wxT("BitBlt"));
+                wxLogLastError(wxT("StretchBlt"));

             }
 
             // set masked area in buffer to BLACK (pixel value 0)
             COLORREF prevBkCol = ::SetBkColor(GetHdc(), RGB(255, 255, 255));
             COLORREF prevCol = ::SetTextColor(GetHdc(), RGB(0, 0, 0));
             }
 
             // set masked area in buffer to BLACK (pixel value 0)
             COLORREF prevBkCol = ::SetBkColor(GetHdc(), RGB(255, 255, 255));
             COLORREF prevCol = ::SetTextColor(GetHdc(), RGB(0, 0, 0));

-            if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height,
-                           dc_mask, xsrcMask, ysrcMask, SRCAND) )
+            if ( !::StretchBlt(dc_buffer, 0, 0, (int)dstWidth, (int)dstHeight,
+                           dc_mask, xsrcMask, ysrcMask, srcWidth, srcHeight, SRCAND) )

             {
             {

-                wxLogLastError(wxT("BitBlt"));
+                wxLogLastError(wxT("StretchBlt"));

             }
 
             // set unmasked area in dest to BLACK
             ::SetBkColor(GetHdc(), RGB(0, 0, 0));
             ::SetTextColor(GetHdc(), RGB(255, 255, 255));
             }
 
             // set unmasked area in dest to BLACK
             ::SetBkColor(GetHdc(), RGB(0, 0, 0));
             ::SetTextColor(GetHdc(), RGB(255, 255, 255));

-            if ( !::BitBlt(GetHdc(), xdest, ydest, (int)width, (int)height,
-                           dc_mask, xsrcMask, ysrcMask, SRCAND) )
+            if ( !::StretchBlt(GetHdc(), xdest, ydest, (int)dstWidth, (int)dstHeight,
+                           dc_mask, xsrcMask, ysrcMask, srcWidth, srcHeight, SRCAND) )

             {
             {

-                wxLogLastError(wxT("BitBlt"));
+                wxLogLastError(wxT("StretchBlt"));

             }
             ::SetBkColor(GetHdc(), prevBkCol);   // restore colours to original values
             ::SetTextColor(GetHdc(), prevCol);
 
             // OR buffer to dest
             success = ::BitBlt(GetHdc(), xdest, ydest,
             }
             ::SetBkColor(GetHdc(), prevBkCol);   // restore colours to original values
             ::SetTextColor(GetHdc(), prevCol);
 
             // OR buffer to dest
             success = ::BitBlt(GetHdc(), xdest, ydest,

-                               (int)width, (int)height,
+                               (int)dstWidth, (int)dstHeight,

                                dc_buffer, 0, 0, SRCPAINT) != 0;
             if ( !success )
             {
                                dc_buffer, 0, 0, SRCPAINT) != 0;
             if ( !success )
             {


@@ -2247,18 +2214,18 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
                 if ( hDIB > 0 )
                 {
                     // reflect ysrc
                 if ( hDIB > 0 )
                 {
                     // reflect ysrc

-                    ysrc = hDIB - (ysrc + height);
+                    ysrc = hDIB - (ysrc + dstHeight);

                 }
 
                 if ( ::StretchDIBits(GetHdc(),
                                      xdest, ydest,
                 }
 
                 if ( ::StretchDIBits(GetHdc(),
                                      xdest, ydest,

-                                     width, height,
+                                     dstWidth, dstHeight,

                                      xsrc, ysrc,
                                      xsrc, ysrc,

-                                     width, height,
+                                     srcWidth, srcHeight,

                                      ds.dsBm.bmBits,
                                      (LPBITMAPINFO)&ds.dsBmih,
                                      DIB_RGB_COLORS,
                                      ds.dsBm.bmBits,
                                      (LPBITMAPINFO)&ds.dsBmih,
                                      DIB_RGB_COLORS,

-                                     SRCCOPY
+                                     dwRop

                                      ) == (int)GDI_ERROR )
                 {
                     // On Win9x this API fails most (all?) of the time, so
                                      ) == (int)GDI_ERROR )
                 {
                     // On Win9x this API fails most (all?) of the time, so


@@ -2285,9 +2252,9 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
             if ( !::StretchBlt
                     (
                         GetHdc(),
             if ( !::StretchBlt
                     (
                         GetHdc(),

-                        xdest, ydest, width, height,
+                        xdest, ydest, dstWidth, dstHeight,

                         GetHdcOf(*source),
                         GetHdcOf(*source),

-                        xsrc, ysrc, width, height,
+                        xsrc, ysrc, srcWidth, srcHeight,

                         dwRop
                     ) )
             {
                         dwRop
                     ) )
             {


@@ -2305,7 +2272,7 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
                     (
                         GetHdc(),
                         xdest, ydest,
                     (
                         GetHdc(),
                         xdest, ydest,

-                        (int)width, (int)height,
+                        (int)dstWidth, (int)dstHeight,

                         GetHdcOf(*source),
                         xsrc, ysrc,
                         dwRop
                         GetHdcOf(*source),
                         xsrc, ysrc,
                         dwRop


@@ -2381,8 +2348,7 @@ void wxDC::SetLogicalScale(double x, double y)
 {
     WXMICROWIN_CHECK_HDC
 
 {
     WXMICROWIN_CHECK_HDC
 

-    m_logicalScaleX = x;
-    m_logicalScaleY = y;
+    wxDCBase::SetLogicalScale(x,y);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -2527,8 +2493,10 @@ IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
 // ----------------------------------------------------------------------------
 
 static bool AlphaBlt(HDC hdcDst,
 // ----------------------------------------------------------------------------
 
 static bool AlphaBlt(HDC hdcDst,

-                     int x, int y, int width, int height,
-                     int srcX, int srcY, HDC hdcSrc,
+                     int x, int y, int dstWidth, int dstHeight,
+                     int srcX, int srcY, 
+                     int srcWidth, int srcHeight,
+                     HDC hdcSrc,

                      const wxBitmap& bmp)
 {
     wxASSERT_MSG( bmp.Ok() && bmp.HasAlpha(), _T("AlphaBlt(): invalid bitmap") );
                      const wxBitmap& bmp)
 {
     wxASSERT_MSG( bmp.Ok() && bmp.HasAlpha(), _T("AlphaBlt(): invalid bitmap") );


@@ -2541,7 +2509,8 @@ static bool AlphaBlt(HDC hdcDst,
                                         HDC,int,int,int,int,
                                         BLENDFUNCTION);
 
                                         HDC,int,int,int,int,
                                         BLENDFUNCTION);
 

-    static AlphaBlend_t pfnAlphaBlend = wxMSIMG32_SYMBOL(AlphaBlend);
+    static AlphaBlend_t
+        pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(_T("AlphaBlend"));

     if ( pfnAlphaBlend )
     {
         BLENDFUNCTION bf;
     if ( pfnAlphaBlend )
     {
         BLENDFUNCTION bf;


@@ -2550,8 +2519,8 @@ static bool AlphaBlt(HDC hdcDst,
         bf.SourceConstantAlpha = 0xff;
         bf.AlphaFormat = AC_SRC_ALPHA;
 
         bf.SourceConstantAlpha = 0xff;
         bf.AlphaFormat = AC_SRC_ALPHA;
 

-        if ( pfnAlphaBlend(hdcDst, x, y, width, height,
-                           hdcSrc, srcX, srcY, width, height,
+        if ( pfnAlphaBlend(hdcDst, x, y, dstWidth, dstHeight,
+                           hdcSrc, srcX, srcY, srcWidth, srcHeight,

                            bf) )
         {
             // skip wxAlphaBlend() call below
                            bf) )
         {
             // skip wxAlphaBlend() call below


@@ -2567,7 +2536,7 @@ static bool AlphaBlt(HDC hdcDst,
     // AlphaBlend() unavailable of failed: use our own (probably much slower)
     // implementation
 #ifdef wxHAVE_RAW_BITMAP
     // AlphaBlend() unavailable of failed: use our own (probably much slower)
     // implementation
 #ifdef wxHAVE_RAW_BITMAP

-    wxAlphaBlend(hdcDst, x, y, width, height, srcX, srcY, bmp);
+    wxAlphaBlend(hdcDst, x, y, dstWidth, dstHeight, srcX, srcY, srcWidth, srcHeight, bmp);

 
     return true;
 #else // !wxHAVE_RAW_BITMAP
 
     return true;
 #else // !wxHAVE_RAW_BITMAP


@@ -2584,15 +2553,17 @@ static bool AlphaBlt(HDC hdcDst,
 
 static void
 wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
 
 static void
 wxAlphaBlend(HDC hdcDst, int xDst, int yDst,

-             int w, int h,
-             int srcX, int srcY, const wxBitmap& bmpSrc)
+             int dstWidth, int dstHeight,
+             int srcX, int srcY, 
+             int srcWidth, int srcHeight,
+             const wxBitmap& bmpSrc)

 {
     // get the destination DC pixels
 {
     // get the destination DC pixels

-    wxBitmap bmpDst(w, h, 32 /* force creating RGBA DIB */);
+    wxBitmap bmpDst(dstWidth, dstHeight, 32 /* force creating RGBA DIB */);

     MemoryHDC hdcMem;
     SelectInHDC select(hdcMem, GetHbitmapOf(bmpDst));
 
     MemoryHDC hdcMem;
     SelectInHDC select(hdcMem, GetHbitmapOf(bmpDst));
 

-    if ( !::BitBlt(hdcMem, 0, 0, w, h, hdcDst, xDst, yDst, SRCCOPY) )
+    if ( !::BitBlt(hdcMem, 0, 0, dstWidth, dstHeight, hdcDst, xDst, yDst, SRCCOPY) )

     {
         wxLogLastError(_T("BitBlt"));
     }
     {
         wxLogLastError(_T("BitBlt"));
     }


@@ -2607,15 +2578,17 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
     wxAlphaPixelData::Iterator pDst(dataDst),
                                pSrc(dataSrc);
 
     wxAlphaPixelData::Iterator pDst(dataDst),
                                pSrc(dataSrc);
 

-    pSrc.Offset(dataSrc, srcX, srcY);

 
 

-    for ( int y = 0; y < h; y++ )
+    for ( int y = 0; y < dstHeight; y++ )

     {
     {

-        wxAlphaPixelData::Iterator pDstRowStart = pDst,
-                                   pSrcRowStart = pSrc;
+        wxAlphaPixelData::Iterator pDstRowStart = pDst;

 
 

-        for ( int x = 0; x < w; x++ )
+        for ( int x = 0; x < dstWidth; x++ )

         {
         {

+            // source is point sampled, Alpha StretchBlit is ugly on Win95
+            // (but does not impact performance)
+            pSrc.MoveTo(dataSrc, srcX + (srcWidth*x/dstWidth), srcY + (srcHeight*y/dstHeight));
+

             // note that source bitmap uses premultiplied alpha (as required by
             // the real AlphaBlend)
             const unsigned beta = 255 - pSrc.Alpha();
             // note that source bitmap uses premultiplied alpha (as required by
             // the real AlphaBlend)
             const unsigned beta = 255 - pSrc.Alpha();


@@ -2625,17 +2598,14 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
             pDst.Green() = pSrc.Green() + (beta * pDst.Green() + 127) / 255;
 
             ++pDst;
             pDst.Green() = pSrc.Green() + (beta * pDst.Green() + 127) / 255;
 
             ++pDst;

-            ++pSrc;

         }
 
         pDst = pDstRowStart;
         }
 
         pDst = pDstRowStart;

-        pSrc = pSrcRowStart;

         pDst.OffsetY(dataDst, 1);
         pDst.OffsetY(dataDst, 1);

-        pSrc.OffsetY(dataSrc, 1);

     }
 
     // and finally blit them back to the destination DC
     }
 
     // and finally blit them back to the destination DC

-    if ( !::BitBlt(hdcDst, xDst, yDst, w, h, hdcMem, 0, 0, SRCCOPY) )
+    if ( !::BitBlt(hdcDst, xDst, yDst, dstWidth, dstHeight, hdcMem, 0, 0, SRCCOPY) )

     {
         wxLogLastError(_T("BitBlt"));
     }
     {
         wxLogLastError(_T("BitBlt"));
     }


@@ -2654,7 +2624,8 @@ void wxDC::DoGradientFillLinear (const wxRect& rect,
 #if defined(GRADIENT_FILL_RECT_H) && wxUSE_DYNLIB_CLASS
     typedef BOOL
         (WINAPI *GradientFill_t)(HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG);
 #if defined(GRADIENT_FILL_RECT_H) && wxUSE_DYNLIB_CLASS
     typedef BOOL
         (WINAPI *GradientFill_t)(HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG);

-    static GradientFill_t pfnGradientFill = wxMSIMG32_SYMBOL(GradientFill);
+    static GradientFill_t pfnGradientFill =
+        (GradientFill_t)wxMSIMG32DLL.GetSymbol(_T("GradientFill"));

 
     if ( pfnGradientFill )
     {
 
     if ( pfnGradientFill )
     {


@@ -2671,8 +2642,8 @@ void wxDC::DoGradientFillLinear (const wxRect& rect,
 
         vertices[0].x = rect.GetLeft();
         vertices[0].y = rect.GetTop();
 
         vertices[0].x = rect.GetLeft();
         vertices[0].y = rect.GetTop();

-        vertices[1].x = rect.GetRight();
-        vertices[1].y = rect.GetBottom();
+        vertices[1].x = rect.GetRight()+1;
+        vertices[1].y = rect.GetBottom()+1;

 
         vertices[firstVertex].Red = (COLOR16)(initialColour.Red() << 8);
         vertices[firstVertex].Green = (COLOR16)(initialColour.Green() << 8);
 
         vertices[firstVertex].Red = (COLOR16)(initialColour.Red() << 8);
         vertices[firstVertex].Green = (COLOR16)(initialColour.Green() << 8);


@@ -2705,3 +2676,62 @@ void wxDC::DoGradientFillLinear (const wxRect& rect,
 
     wxDCBase::DoGradientFillLinear(rect, initialColour, destColour, nDirection);
 }
 
     wxDCBase::DoGradientFillLinear(rect, initialColour, destColour, nDirection);
 }

+
+#if wxUSE_DYNLIB_CLASS
+
+static DWORD wxGetDCLayout(HDC hdc)
+{
+    typedef DWORD (WINAPI *GetLayout_t)(HDC);
+    static GetLayout_t
+        pfnGetLayout = (GetLayout_t)wxGDI32DLL.GetSymbol(_T("GetLayout"));
+
+    return pfnGetLayout ? pfnGetLayout(hdc) : (DWORD)-1;
+}
+
+wxLayoutDirection wxDC::GetLayoutDirection() const
+{
+    DWORD layout = wxGetDCLayout(GetHdc());
+
+    if ( layout == (DWORD)-1 )
+        return wxLayout_Default;
+
+    return layout & LAYOUT_RTL ? wxLayout_RightToLeft : wxLayout_LeftToRight;
+}
+
+void wxDC::SetLayoutDirection(wxLayoutDirection dir)
+{
+    typedef DWORD (WINAPI *SetLayout_t)(HDC, DWORD);
+    static SetLayout_t
+        pfnSetLayout = (SetLayout_t)wxGDI32DLL.GetSymbol(_T("SetLayout"));
+    if ( !pfnSetLayout )
+        return;
+
+    if ( dir == wxLayout_Default )
+    {
+        dir = wxTheApp->GetLayoutDirection();
+        if ( dir == wxLayout_Default )
+            return;
+    }
+
+    DWORD layout = wxGetDCLayout(GetHdc());
+    if ( dir == wxLayout_RightToLeft )
+        layout |= LAYOUT_RTL;
+    else
+        layout &= ~LAYOUT_RTL;
+
+    pfnSetLayout(GetHdc(), layout);
+}
+
+#else // !wxUSE_DYNLIB_CLASS
+
+// we can't provide RTL support without dynamic loading, so stub it out
+wxLayoutDirection wxDC::GetLayoutDirection() const
+{
+    return wxLayout_Default;
+}
+
+void wxDC::SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
+{
+}
+
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS