X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4f64fde78548c2111a4f48595b485dac6d0e6557..97e49559fb0e1dfc43d66e8784ec47182f5507e9:/src/msw/dc.cpp

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index 8c7adc9768..e0e1ec6523 100644
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -44,14 +44,14 @@
 #include "wx/dynlib.h"
 
 #ifdef wxHAS_RAW_BITMAP
-#include "wx/rawbmp.h"
+    #include "wx/rawbmp.h"
 #endif
 
 #include <string.h>
 
-#ifndef __WIN32__
-    #include <print.h>
-#endif
+#include "wx/msw/private/dc.h"
+
+using namespace wxMSWImpl;
 
 #ifndef AC_SRC_ALPHA
     #define AC_SRC_ALPHA 1
@@ -82,7 +82,7 @@ IMPLEMENT_ABSTRACT_CLASS(wxMSWDCImpl, wxDCImpl)
 // constants
 // ---------------------------------------------------------------------------
 
-static const int VIEWPORT_EXTENT = 1000;
+static const int VIEWPORT_EXTENT = 1024;
 
 // ROPs which don't have standard names (see "Ternary Raster Operations" in the
 // MSDN docs for how this and other numbers in wxDC::Blit() are obtained)
@@ -149,119 +149,6 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
 // private classes
 // ----------------------------------------------------------------------------
 
-// various classes to change some DC property temporarily
-
-// text background and foreground colours
-class wxTextColoursChanger
-{
-public:
-    wxTextColoursChanger(HDC hdc, const wxMSWDCImpl& dc)
-        : m_hdc(hdc)
-    {
-        Change(dc.GetTextForeground(), dc.GetTextBackground());
-    }
-
-    wxTextColoursChanger(HDC hdc, const wxColour& colFg, const wxColour& colBg)
-        : m_hdc(hdc)
-    {
-        Change(colFg, colBg);
-    }
-
-    ~wxTextColoursChanger()
-    {
-        if ( m_oldColFg != CLR_INVALID )
-            ::SetTextColor(m_hdc, m_oldColFg);
-        if ( m_oldColBg != CLR_INVALID )
-            ::SetBkColor(m_hdc, m_oldColBg);
-    }
-
-protected:
-    // this ctor doesn't change mode immediately, call Change() later to do it
-    // only if needed
-    wxTextColoursChanger(HDC hdc)
-        : m_hdc(hdc)
-    {
-        m_oldColFg =
-        m_oldColBg = CLR_INVALID;
-    }
-
-    void Change(const wxColour& colFg, const wxColour& colBg)
-    {
-        if ( colFg.IsOk() )
-        {
-            m_oldColFg = ::SetTextColor(m_hdc, colFg.GetPixel());
-            if ( m_oldColFg == CLR_INVALID )
-            {
-                wxLogLastError(_T("SetTextColor"));
-            }
-        }
-        else
-        {
-            m_oldColFg = CLR_INVALID;
-        }
-
-        if ( colBg.IsOk() )
-        {
-            m_oldColBg = ::SetBkColor(m_hdc, colBg.GetPixel());
-            if ( m_oldColBg == CLR_INVALID )
-            {
-                wxLogLastError(_T("SetBkColor"));
-            }
-        }
-        else
-        {
-            m_oldColBg = CLR_INVALID;
-        }
-    }
-
-private:
-    const HDC m_hdc;
-    COLORREF m_oldColFg,
-             m_oldColBg;
-
-    wxDECLARE_NO_COPY_CLASS(wxTextColoursChanger);
-};
-
-// background mode
-class wxBkModeChanger
-{
-public:
-    // set background mode to opaque if mode != wxBRUSHSTYLE_TRANSPARENT
-    wxBkModeChanger(HDC hdc, int mode)
-        : m_hdc(hdc)
-    {
-        Change(mode);
-    }
-
-    ~wxBkModeChanger()
-    {
-        if ( m_oldMode )
-            ::SetBkMode(m_hdc, m_oldMode);
-    }
-
-protected:
-    // this ctor doesn't change mode immediately, call Change() later to do it
-    // only if needed
-    wxBkModeChanger(HDC hdc) : m_hdc(hdc) { m_oldMode = 0; }
-
-    void Change(int mode)
-    {
-        m_oldMode = ::SetBkMode(m_hdc, mode == wxBRUSHSTYLE_TRANSPARENT
-                                        ? TRANSPARENT
-                                        : OPAQUE);
-        if ( !m_oldMode )
-        {
-            wxLogLastError(_T("SetBkMode"));
-        }
-    }
-
-private:
-    const HDC m_hdc;
-    int m_oldMode;
-
-    wxDECLARE_NO_COPY_CLASS(wxBkModeChanger);
-};
-
 // instead of duplicating the same code which sets and then restores text
 // colours in each wxDC method working with wxSTIPPLE_MASK_OPAQUE brushes,
 // encapsulate this in a small helper class
@@ -296,13 +183,17 @@ public:
     {
         m_modeOld = ::SetStretchBltMode(m_hdc, COLORONCOLOR);
         if ( !m_modeOld )
-            wxLogLastError(_T("SetStretchBltMode"));
+        {
+            wxLogLastError(wxT("SetStretchBltMode"));
+        }
     }
 
     ~StretchBltModeChanger()
     {
         if ( !::SetStretchBltMode(m_hdc, m_modeOld) )
-            wxLogLastError(_T("SetStretchBltMode"));
+        {
+            wxLogLastError(wxT("SetStretchBltMode"));
+        }
     }
 
 private:
@@ -364,7 +255,7 @@ private:
     const wxChar *m_dllName;
 };
 
-static wxOnceOnlyDLLLoader wxMSIMG32DLL(_T("msimg32"));
+static wxOnceOnlyDLLLoader wxMSIMG32DLL(wxT("msimg32"));
 
 // we must ensure that DLLs are unloaded before the static objects cleanup time
 // because we may hit the notorious DllMain() dead lock in this case if wx is
@@ -382,6 +273,98 @@ private:
 
 IMPLEMENT_DYNAMIC_CLASS(wxGDIDLLsCleanupModule, wxModule)
 
+namespace
+{
+
+#if wxUSE_DC_TRANSFORM_MATRIX
+
+// Class used to dynamically load world transform related API functions.
+class GdiWorldTransformFuncs
+{
+public:
+    static bool IsOk()
+    {
+        if ( !ms_worldTransformSymbolsLoaded )
+            LoadWorldTransformSymbols();
+
+        return ms_pfnSetGraphicsMode &&
+                ms_pfnSetWorldTransform &&
+                 ms_pfnGetWorldTransform &&
+                  ms_pfnModifyWorldTransform;
+    }
+
+    typedef int (WINAPI *SetGraphicsMode_t)(HDC, int);
+    static SetGraphicsMode_t SetGraphicsMode()
+    {
+        if ( !ms_worldTransformSymbolsLoaded )
+            LoadWorldTransformSymbols();
+
+        return ms_pfnSetGraphicsMode;
+    }
+
+    typedef BOOL (WINAPI *SetWorldTransform_t)(HDC, const XFORM *);
+    static SetWorldTransform_t SetWorldTransform()
+    {
+        if ( !ms_worldTransformSymbolsLoaded )
+            LoadWorldTransformSymbols();
+
+        return ms_pfnSetWorldTransform;
+    }
+
+    typedef BOOL (WINAPI *GetWorldTransform_t)(HDC, LPXFORM);
+    static GetWorldTransform_t GetWorldTransform()
+    {
+        if ( !ms_worldTransformSymbolsLoaded )
+            LoadWorldTransformSymbols();
+
+        return ms_pfnGetWorldTransform;
+    }
+
+    typedef BOOL (WINAPI *ModifyWorldTransform_t)(HDC, const XFORM *, DWORD);
+    static ModifyWorldTransform_t ModifyWorldTransform()
+    {
+        if ( !ms_worldTransformSymbolsLoaded )
+            LoadWorldTransformSymbols();
+
+        return ms_pfnModifyWorldTransform;
+    }
+
+private:
+    static void LoadWorldTransformSymbols()
+    {
+        wxDynamicLibrary dll(wxT("gdi32.dll"));
+
+        wxDL_INIT_FUNC(ms_pfn, SetGraphicsMode, dll);
+        wxDL_INIT_FUNC(ms_pfn, SetWorldTransform, dll);
+        wxDL_INIT_FUNC(ms_pfn, GetWorldTransform, dll);
+        wxDL_INIT_FUNC(ms_pfn, ModifyWorldTransform, dll);
+
+        ms_worldTransformSymbolsLoaded = true;
+    }
+
+    static SetGraphicsMode_t ms_pfnSetGraphicsMode;
+    static SetWorldTransform_t ms_pfnSetWorldTransform;
+    static GetWorldTransform_t ms_pfnGetWorldTransform;
+    static ModifyWorldTransform_t ms_pfnModifyWorldTransform;
+
+    static bool ms_worldTransformSymbolsLoaded;
+};
+
+GdiWorldTransformFuncs::SetGraphicsMode_t
+    GdiWorldTransformFuncs::ms_pfnSetGraphicsMode = NULL;
+GdiWorldTransformFuncs::SetWorldTransform_t
+    GdiWorldTransformFuncs::ms_pfnSetWorldTransform = NULL;
+GdiWorldTransformFuncs::GetWorldTransform_t
+    GdiWorldTransformFuncs::ms_pfnGetWorldTransform = NULL;
+GdiWorldTransformFuncs::ModifyWorldTransform_t
+    GdiWorldTransformFuncs::ms_pfnModifyWorldTransform = NULL;
+
+bool GdiWorldTransformFuncs::ms_worldTransformSymbolsLoaded = false;
+
+#endif // wxUSE_DC_TRANSFORM_MATRIX
+
+} // anonymous namespace
+
 #endif // wxUSE_DYNLIB_CLASS
 
 // ===========================================================================
@@ -577,7 +560,7 @@ void wxMSWDCImpl::SetClippingHrgn(WXHRGN hrgn)
 #else // !WinCE
     if ( ::ExtSelectClipRgn(GetHdc(), (HRGN)hrgn, RGN_AND) == ERROR )
     {
-        wxLogLastError(_T("ExtSelectClipRgn"));
+        wxLogLastError(wxT("ExtSelectClipRgn"));
 
         return;
     }
@@ -600,7 +583,7 @@ void wxMSWDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h
                                 LogicalToDeviceY(y + h));
     if ( !hrgn )
     {
-        wxLogLastError(_T("CreateRectRgn"));
+        wxLogLastError(wxT("CreateRectRgn"));
     }
     else
     {
@@ -750,7 +733,7 @@ bool wxMSWDCImpl::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
 {
     WXMICROWIN_CHECK_HDC_RET(false)
 
-    wxCHECK_MSG( col, false, _T("NULL colour parameter in wxMSWDCImpl::GetPixel") );
+    wxCHECK_MSG( col, false, wxT("NULL colour parameter in wxMSWDCImpl::GetPixel") );
 
     // get the color of the pixel
     COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y));
@@ -832,7 +815,7 @@ void wxMSWDCImpl::DoDrawArc(wxCoord x1, wxCoord y1,
     wxCoord xxx2 = (wxCoord) (xxc+ray);
     wxCoord yyy2 = (wxCoord) (yyc+ray);
 
-    if ( m_brush.IsOk() && m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT )
+    if ( m_brush.IsNonTransparent() )
     {
         // Have to add 1 to bottom-right corner of rectangle
         // to make semi-circles look right (crooked line otherwise).
@@ -1040,7 +1023,7 @@ void wxMSWDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord h
     // (i.e. drawn with a transparent pen) one pixel smaller in both directions
     // and we want them to have the same size regardless of which pen is used
 #ifndef __WXWINCE__
-    if ( m_pen.IsOk() && m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
+    if ( m_pen.IsTransparent() )
     {
         x2dev++;
         y2dev++;
@@ -1074,7 +1057,7 @@ void wxMSWDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wx
     // Windows draws the filled rectangles without outline (i.e. drawn with a
     // transparent pen) one pixel smaller in both directions and we want them
     // to have the same size regardless of which pen is used - adjust
-    if ( m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
+    if ( m_pen.IsTransparent() )
     {
         x2++;
         y2++;
@@ -1157,11 +1140,11 @@ void wxMSWDCImpl::DoDrawSpline(const wxPointList *points)
     lppt[ bezier_pos ] = lppt[ bezier_pos-1 ];
     bezier_pos++;
 
-#if !wxUSE_STL
+#if !wxUSE_STD_CONTAINERS
     while ((node = node->GetNext()) != NULL)
 #else
     while ((node = node->GetNext()))
-#endif // !wxUSE_STL
+#endif // !wxUSE_STD_CONTAINERS
     {
         p = (wxPoint *)node->GetData();
         x1 = x2;
@@ -1283,7 +1266,7 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool
 {
     WXMICROWIN_CHECK_HDC
 
-    wxCHECK_RET( bmp.IsOk(), _T("invalid bitmap in wxMSWDCImpl::DrawBitmap") );
+    wxCHECK_RET( bmp.IsOk(), wxT("invalid bitmap in wxMSWDCImpl::DrawBitmap") );
 
     int width = bmp.GetWidth(),
         height = bmp.GetHeight();
@@ -1323,13 +1306,20 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool
 #ifdef __WIN32__
         // use MaskBlt() with ROP which doesn't do anything to dst in the mask
         // points
+        bool ok = false;
+
+#if wxUSE_SYSTEM_OPTIONS
         // On some systems, MaskBlt succeeds yet is much much slower
         // than the wxWidgets fall-back implementation. So we need
         // to be able to switch this on and off at runtime.
-        bool ok = false;
-#if wxUSE_SYSTEM_OPTIONS
-        if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0)
-#endif
+        //
+        // NB: don't query the value of the option every time but do it only
+        //     once as otherwise it can have real (and bad) performance
+        //     implications (see #11172)
+        static bool
+            s_maskBltAllowed = wxSystemOptions::GetOptionInt("no-maskblt") == 0;
+        if ( s_maskBltAllowed )
+#endif // wxUSE_SYSTEM_OPTIONS
         {
             HDC cdc = GetHdc();
             HDC hdcMem = ::CreateCompatibleDC(GetHdc());
@@ -1405,6 +1395,18 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool
 
 void wxMSWDCImpl::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
 {
+    // For compatibility with other ports (notably wxGTK) and because it's
+    // genuinely useful, we allow passing multiline strings to DrawText().
+    // However there is no native MSW function to draw them directly so we
+    // instead reuse the generic DrawLabel() method to render them. Of course,
+    // DrawLabel() itself will call back to us but with single line strings
+    // only so there won't be any infinite recursion here.
+    if ( text.find('\n') != wxString::npos )
+    {
+        GetOwner()->DrawLabel(text, wxRect(x, y, 0, 0));
+        return;
+    }
+
     WXMICROWIN_CHECK_HDC
 
     DrawAnyText(text, x, y);
@@ -1578,7 +1580,7 @@ void wxMSWDCImpl::SetFont(const wxFont& font)
         HGDIOBJ hfont = ::SelectObject(GetHdc(), GetHfontOf(font));
         if ( hfont == HGDI_ERROR )
         {
-            wxLogLastError(_T("SelectObject(font)"));
+            wxLogLastError(wxT("SelectObject(font)"));
         }
         else // selected ok
         {
@@ -1594,7 +1596,7 @@ void wxMSWDCImpl::SetFont(const wxFont& font)
         {
             if ( ::SelectObject(GetHdc(), (HPEN) m_oldFont) == HGDI_ERROR )
             {
-                wxLogLastError(_T("SelectObject(old font)"));
+                wxLogLastError(wxT("SelectObject(old font)"));
             }
 
             m_oldFont = 0;
@@ -1616,7 +1618,7 @@ void wxMSWDCImpl::SetPen(const wxPen& pen)
         HGDIOBJ hpen = ::SelectObject(GetHdc(), GetHpenOf(pen));
         if ( hpen == HGDI_ERROR )
         {
-            wxLogLastError(_T("SelectObject(pen)"));
+            wxLogLastError(wxT("SelectObject(pen)"));
         }
         else // selected ok
         {
@@ -1632,7 +1634,7 @@ void wxMSWDCImpl::SetPen(const wxPen& pen)
         {
             if ( ::SelectObject(GetHdc(), (HPEN) m_oldPen) == HGDI_ERROR )
             {
-                wxLogLastError(_T("SelectObject(old pen)"));
+                wxLogLastError(wxT("SelectObject(old pen)"));
             }
 
             m_oldPen = 0;
@@ -1652,26 +1654,33 @@ void wxMSWDCImpl::SetBrush(const wxBrush& brush)
     if ( brush.IsOk() )
     {
         // we must make sure the brush is aligned with the logical coordinates
-        // before selecting it
+        // before selecting it or using the same brush for the background of
+        // different windows would result in discontinuities
+        wxSize sizeBrushBitmap = wxDefaultSize;
         wxBitmap *stipple = brush.GetStipple();
         if ( stipple && stipple->IsOk() )
+            sizeBrushBitmap = stipple->GetSize();
+        else if ( brush.IsHatch() )
+            sizeBrushBitmap = wxSize(8, 8);
+
+        if ( sizeBrushBitmap.IsFullySpecified() )
         {
             if ( !::SetBrushOrgEx
                     (
                         GetHdc(),
-                        m_deviceOriginX % stipple->GetWidth(),
-                        m_deviceOriginY % stipple->GetHeight(),
+                        m_deviceOriginX % sizeBrushBitmap.x,
+                        m_deviceOriginY % sizeBrushBitmap.y,
                         NULL                    // [out] previous brush origin
                     ) )
             {
-                wxLogLastError(_T("SetBrushOrgEx()"));
+                wxLogLastError(wxT("SetBrushOrgEx()"));
             }
         }
 
         HGDIOBJ hbrush = ::SelectObject(GetHdc(), GetHbrushOf(brush));
         if ( hbrush == HGDI_ERROR )
         {
-            wxLogLastError(_T("SelectObject(brush)"));
+            wxLogLastError(wxT("SelectObject(brush)"));
         }
         else // selected ok
         {
@@ -1687,7 +1696,7 @@ void wxMSWDCImpl::SetBrush(const wxBrush& brush)
         {
             if ( ::SelectObject(GetHdc(), (HPEN) m_oldBrush) == HGDI_ERROR )
             {
-                wxLogLastError(_T("SelectObject(old brush)"));
+                wxLogLastError(wxT("SelectObject(old brush)"));
             }
 
             m_oldBrush = 0;
@@ -1805,6 +1814,31 @@ wxCoord wxMSWDCImpl::GetCharWidth() const
     return lpTextMetric.tmAveCharWidth;
 }
 
+void wxMSWDCImpl::DoGetFontMetrics(int *height,
+                                   int *ascent,
+                                   int *descent,
+                                   int *internalLeading,
+                                   int *externalLeading,
+                                   int *averageWidth) const
+{
+    TEXTMETRIC tm;
+
+    GetTextMetrics(GetHdc(), &tm);
+
+    if ( height )
+        *height = tm.tmHeight;
+    if ( ascent )
+        *ascent = tm.tmAscent;
+    if ( descent )
+        *descent = tm.tmDescent;
+    if ( internalLeading )
+        *internalLeading = tm.tmInternalLeading;
+    if ( externalLeading )
+        *externalLeading = tm.tmExternalLeading;
+    if ( averageWidth )
+        *averageWidth = tm.tmAveCharWidth;
+}
+
 void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
                            wxCoord *descent, wxCoord *externalLeading,
                            const wxFont *font) const
@@ -1823,7 +1857,7 @@ void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y
     HFONT hfontOld;
     if ( font )
     {
-        wxASSERT_MSG( font->IsOk(), _T("invalid font in wxMSWDCImpl::GetTextExtent") );
+        wxASSERT_MSG( font->IsOk(), wxT("invalid font in wxMSWDCImpl::GetTextExtent") );
 
         hfontOld = (HFONT)::SelectObject(GetHdc(), GetHfontOf(*font));
     }
@@ -1836,7 +1870,7 @@ void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y
     const size_t len = string.length();
     if ( !::GetTextExtentPoint32(GetHdc(), string.wx_str(), len, &sizeRect) )
     {
-        wxLogLastError(_T("GetTextExtentPoint32()"));
+        wxLogLastError(wxT("GetTextExtentPoint32()"));
     }
 
 #if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)
@@ -1867,17 +1901,15 @@ void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y
     }
 #endif // !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)
 
-    TEXTMETRIC tm;
-    ::GetTextMetrics(GetHdc(), &tm);
-
     if (x)
         *x = sizeRect.cx;
     if (y)
         *y = sizeRect.cy;
-    if (descent)
-        *descent = tm.tmDescent;
-    if (externalLeading)
-        *externalLeading = tm.tmExternalLeading;
+
+    if ( descent || externalLeading )
+    {
+        DoGetFontMetrics(NULL, NULL, descent, NULL, externalLeading, NULL);
+    }
 
     if ( hfontOld )
     {
@@ -1935,11 +1967,39 @@ void wxMSWDCImpl::RealizeScaleAndOrigin()
 #ifndef __WXWINCE__
     ::SetMapMode(GetHdc(), MM_ANISOTROPIC);
 
-    int width = DeviceToLogicalXRel(VIEWPORT_EXTENT)*m_signX,
-        height = DeviceToLogicalYRel(VIEWPORT_EXTENT)*m_signY;
+    // wxWidgets API assumes that the coordinate space is "infinite" (i.e. only
+    // limited by 2^32 range of the integer coordinates) but in MSW API we must
+    // actually specify the extents that we use. So we more or less arbitrarily
+    // decide to use "base" VIEWPORT_EXTENT and adjust it depending on scale.
+    //
+    // To avoid rounding errors we prefer to multiply by the scale if it's > 1
+    // and to divide by it if it's < 1.
+    int devExtX, devExtY,   // Viewport, i.e. device space, extents.
+        logExtX, logExtY;   // Window, i.e. logical coordinate space, extents.
+    if ( m_scaleX >= 1 )
+    {
+        devExtX = VIEWPORT_EXTENT*m_scaleX;
+        logExtX = m_signX*VIEWPORT_EXTENT;
+    }
+    else
+    {
+        devExtX = VIEWPORT_EXTENT;
+        logExtX = m_signX*VIEWPORT_EXTENT/m_scaleX;
+    }
 
-    ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
-    ::SetWindowExtEx(GetHdc(), width, height, NULL);
+    if ( m_scaleY >= 1 )
+    {
+        devExtY = VIEWPORT_EXTENT*m_scaleY;
+        logExtY = m_signY*VIEWPORT_EXTENT;
+    }
+    else
+    {
+        devExtY = VIEWPORT_EXTENT;
+        logExtY = m_signY*VIEWPORT_EXTENT/m_scaleY;
+    }
+
+    ::SetViewportExtEx(GetHdc(), devExtX, devExtY, NULL);
+    ::SetWindowExtEx(GetHdc(), logExtX, logExtY, NULL);
 
     ::SetViewportOrgEx(GetHdc(), m_deviceOriginX, m_deviceOriginY, NULL);
     ::SetWindowOrgEx(GetHdc(), m_logicalOriginX, m_logicalOriginY, NULL);
@@ -1996,7 +2056,7 @@ void wxMSWDCImpl::SetMapMode(wxMappingMode mode)
                 break;
 
             default:
-                wxFAIL_MSG( _T("unknown mapping mode in SetMapMode") );
+                wxFAIL_MSG( wxT("unknown mapping mode in SetMapMode") );
         }
     }
 
@@ -2065,6 +2125,87 @@ void wxMSWDCImpl::SetDeviceOrigin(wxCoord x, wxCoord y)
     ::SetViewportOrgEx(GetHdc(), (int)m_deviceOriginX, (int)m_deviceOriginY, NULL);
 }
 
+// ----------------------------------------------------------------------------
+// Transform matrix
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DC_TRANSFORM_MATRIX
+
+bool wxMSWDCImpl::CanUseTransformMatrix() const
+{
+    return GdiWorldTransformFuncs::IsOk();
+}
+
+bool wxMSWDCImpl::SetTransformMatrix(const wxAffineMatrix2D &matrix)
+{
+    if ( !GdiWorldTransformFuncs::IsOk() )
+        return false;
+
+    if ( matrix.IsIdentity() )
+    {
+        ResetTransformMatrix();
+        return true;
+    }
+
+    if ( !GdiWorldTransformFuncs::SetGraphicsMode()(GetHdc(), GM_ADVANCED) )
+    {
+        wxLogLastError(wxT("SetGraphicsMode"));
+        return false;
+    }
+
+    wxMatrix2D mat;
+    wxPoint2DDouble tr;
+    matrix.Get(&mat, &tr);
+
+    XFORM xform;
+    xform.eM11 = mat.m_11;
+    xform.eM12 = mat.m_12;
+    xform.eM21 = mat.m_21;
+    xform.eM22 = mat.m_22;
+    xform.eDx = tr.m_x;
+    xform.eDy = tr.m_y;
+
+    if ( !GdiWorldTransformFuncs::SetWorldTransform()(GetHdc(), &xform) )
+    {
+        wxLogLastError(wxT("SetWorldTransform"));
+        return false;
+    }
+
+    return true;
+}
+
+wxAffineMatrix2D wxMSWDCImpl::GetTransformMatrix() const
+{
+    wxAffineMatrix2D transform;
+
+    if ( !GdiWorldTransformFuncs::IsOk() )
+        return transform;
+
+    XFORM xform;
+    if ( !GdiWorldTransformFuncs::GetWorldTransform()(GetHdc(), &xform) )
+    {
+        wxLogLastError(wxT("GetWorldTransform"));
+        return transform;
+    }
+
+    wxMatrix2D m(xform.eM11, xform.eM12, xform.eM21, xform.eM22);
+    wxPoint2DDouble p(xform.eDx, xform.eDy);
+    transform.Set(m, p);
+
+    return transform;
+}
+
+void wxMSWDCImpl::ResetTransformMatrix()
+{
+    if ( GdiWorldTransformFuncs::IsOk() )
+    {
+        GdiWorldTransformFuncs::ModifyWorldTransform()(GetHdc(), NULL, MWT_IDENTITY);
+        GdiWorldTransformFuncs::SetGraphicsMode()(GetHdc(), GM_COMPATIBLE);
+    }
+}
+
+#endif // wxUSE_DC_TRANSFORM_MATRIX
+
 // ---------------------------------------------------------------------------
 // bit blit
 // ---------------------------------------------------------------------------
@@ -2087,7 +2228,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
                          wxRasterOperationMode rop, bool useMask,
                          wxCoord xsrcMask, wxCoord ysrcMask)
 {
-    wxCHECK_MSG( source, false, _T("wxMSWDCImpl::Blit(): NULL wxDC pointer") );
+    wxCHECK_MSG( source, false, wxT("wxMSWDCImpl::Blit(): NULL wxDC pointer") );
 
     WXMICROWIN_CHECK_HDC_RET(false)
 
@@ -2341,7 +2482,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
                         dwRop
                     ) )
             {
-                wxLogLastError(_T("StretchBlt"));
+                wxLogLastError(wxT("StretchBlt"));
             }
             else
             {
@@ -2354,7 +2495,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
             if ( !::BitBlt(GetHdc(), xdest, ydest, dstWidth, dstHeight,
                            hdcSrc, xsrc, ysrc, dwRop) )
             {
-                wxLogLastError(_T("BitBlt"));
+                wxLogLastError(wxT("BitBlt"));
             }
             else
             {
@@ -2391,7 +2532,7 @@ void wxMSWDCImpl::DoGetSizeMM(int *w, int *h) const
     {
         int wTotal = ::GetDeviceCaps(GetHdc(), HORZRES);
 
-        wxCHECK_RET( wTotal, _T("0 width device?") );
+        wxCHECK_RET( wTotal, wxT("0 width device?") );
 
         *w = (wPixels * ::GetDeviceCaps(GetHdc(), HORZSIZE)) / wTotal;
     }
@@ -2400,7 +2541,7 @@ void wxMSWDCImpl::DoGetSizeMM(int *w, int *h) const
     {
         int hTotal = ::GetDeviceCaps(GetHdc(), VERTRES);
 
-        wxCHECK_RET( hTotal, _T("0 height device?") );
+        wxCHECK_RET( hTotal, wxT("0 height device?") );
 
         *h = (hPixels * ::GetDeviceCaps(GetHdc(), VERTSIZE)) / hTotal;
     }
@@ -2564,8 +2705,8 @@ static bool AlphaBlt(HDC hdcDst,
                      HDC hdcSrc,
                      const wxBitmap& bmp)
 {
-    wxASSERT_MSG( bmp.IsOk() && bmp.HasAlpha(), _T("AlphaBlt(): invalid bitmap") );
-    wxASSERT_MSG( hdcDst && hdcSrc, _T("AlphaBlt(): invalid HDC") );
+    wxASSERT_MSG( bmp.IsOk() && bmp.HasAlpha(), wxT("AlphaBlt(): invalid bitmap") );
+    wxASSERT_MSG( hdcDst && hdcSrc, wxT("AlphaBlt(): invalid HDC") );
 
     // do we have AlphaBlend() and company in the headers?
 #if defined(AC_SRC_OVER) && wxUSE_DYNLIB_CLASS
@@ -2575,7 +2716,7 @@ static bool AlphaBlt(HDC hdcDst,
                                         BLENDFUNCTION);
 
     static AlphaBlend_t
-        pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(_T("AlphaBlend"));
+        pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(wxT("AlphaBlend"));
     if ( pfnAlphaBlend )
     {
         BLENDFUNCTION bf;
@@ -2592,7 +2733,7 @@ static bool AlphaBlt(HDC hdcDst,
             return true;
         }
 
-        wxLogLastError(_T("AlphaBlend"));
+        wxLogLastError(wxT("AlphaBlend"));
     }
 #else
     wxUnusedVar(hdcSrc);
@@ -2630,7 +2771,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
 
     if ( !::BitBlt(hdcMem, 0, 0, dstWidth, dstHeight, hdcDst, xDst, yDst, SRCCOPY) )
     {
-        wxLogLastError(_T("BitBlt"));
+        wxLogLastError(wxT("BitBlt"));
     }
 
     // combine them with the source bitmap using alpha
@@ -2638,7 +2779,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
                      dataSrc((wxBitmap &)bmpSrc);
 
     wxCHECK_RET( dataDst && dataSrc,
-                    _T("failed to get raw data in wxAlphaBlend") );
+                    wxT("failed to get raw data in wxAlphaBlend") );
 
     wxAlphaPixelData::Iterator pDst(dataDst),
                                pSrc(dataSrc);
@@ -2672,7 +2813,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst,
     // and finally blit them back to the destination DC
     if ( !::BitBlt(hdcDst, xDst, yDst, dstWidth, dstHeight, hdcMem, 0, 0, SRCCOPY) )
     {
-        wxLogLastError(_T("BitBlt"));
+        wxLogLastError(wxT("BitBlt"));
     }
 }
 
@@ -2690,7 +2831,7 @@ void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect,
     typedef BOOL
         (WINAPI *GradientFill_t)(HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG);
     static GradientFill_t pfnGradientFill =
-        (GradientFill_t)wxMSIMG32DLL.GetSymbol(_T("GradientFill"));
+        (GradientFill_t)wxMSIMG32DLL.GetSymbol(wxT("GradientFill"));
 
     if ( pfnGradientFill )
     {
@@ -2735,7 +2876,7 @@ void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect,
             return;
         }
 
-        wxLogLastError(_T("GradientFill"));
+        wxLogLastError(wxT("GradientFill"));
     }
 #endif // wxUSE_DYNLIB_CLASS
 
@@ -2748,7 +2889,7 @@ static DWORD wxGetDCLayout(HDC hdc)
 {
     typedef DWORD (WINAPI *GetLayout_t)(HDC);
     static GetLayout_t
-        wxDL_INIT_FUNC(s_pfn, GetLayout, wxDynamicLibrary(_T("gdi32.dll")));
+        wxDL_INIT_FUNC(s_pfn, GetLayout, wxDynamicLibrary(wxT("gdi32.dll")));
 
     return s_pfnGetLayout ? s_pfnGetLayout(hdc) : (DWORD)-1;
 }
@@ -2767,7 +2908,7 @@ void wxMSWDCImpl::SetLayoutDirection(wxLayoutDirection dir)
 {
     typedef DWORD (WINAPI *SetLayout_t)(HDC, DWORD);
     static SetLayout_t
-        wxDL_INIT_FUNC(s_pfn, SetLayout, wxDynamicLibrary(_T("gdi32.dll")));
+        wxDL_INIT_FUNC(s_pfn, SetLayout, wxDynamicLibrary(wxT("gdi32.dll")));
     if ( !s_pfnSetLayout )
         return;