X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a1b806b98241ab649c169aaa1f134df85e80fb8b..b02dd12239c8a59b9a545d9fcb04974f8ad02c6b:/include/wx/dc.h

diff --git a/include/wx/dc.h b/include/wx/dc.h
index 1f1731d4a6..b519785afa 100644
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -43,6 +43,10 @@ class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
 class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
 class WXDLLIMPEXP_FWD_CORE wxPrintData;
 
+#if wxUSE_GRAPHICS_CONTEXT
+class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
+#endif
+
 //  Logical ops
 enum wxRasterOperationMode
 {
@@ -471,7 +475,7 @@ public:
     }
 
     virtual void SetLogicalScale(double x, double y);
-    virtual void GetLogicalScale(double *x, double *y)
+    virtual void GetLogicalScale(double *x, double *y) const
     {
         if ( x ) *x = m_logicalScaleX;
         if ( y ) *y = m_logicalScaleY;
@@ -512,6 +516,19 @@ public:
     // this needs to overidden if the axis is inverted
     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
 
+#ifdef __WXMSW__
+    // Native Windows functions using the underlying HDC don't honour GDI+
+    // transformations which may be applied to it. Using this function we can
+    // transform the coordinates manually before passing them to such functions
+    // (as in e.g. wxRendererMSW code). It doesn't do anything if this is not a
+    // wxGCDC.
+    virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const
+    {
+        return r;
+    }
+#endif // __WXMSW__
+
+
     // ---------------------------------------------------------
     // the actual drawing API
 
@@ -627,6 +644,13 @@ public:
     virtual int GetResolution() const
         { return -1; }
 
+#if wxUSE_GRAPHICS_CONTEXT
+    virtual wxGraphicsContext* GetGraphicsContext() const
+        { return NULL; }
+    virtual void SetGraphicsContext( wxGraphicsContext* WXUNUSED(ctx) )
+        {}
+#endif
+
 private:
     wxDC       *m_owner;
 
@@ -996,7 +1020,7 @@ public:
 
     void SetLogicalScale(double x, double y)
         { m_pimpl->SetLogicalScale( x, y ); }
-    void GetLogicalScale(double *x, double *y)
+    void GetLogicalScale(double *x, double *y) const
         { m_pimpl->GetLogicalScale( x, y ); }
 
     void SetLogicalOrigin(wxCoord x, wxCoord y)
@@ -1316,6 +1340,17 @@ public:
     TempHDC GetTempHDC() { return TempHDC(*this); }
 #endif // __WXMSW__
 
+#if wxUSE_GRAPHICS_CONTEXT
+    virtual wxGraphicsContext* GetGraphicsContext() const
+    {
+        return m_pimpl->GetGraphicsContext();
+    }
+    virtual void SetGraphicsContext( wxGraphicsContext* ctx )
+    {
+        m_pimpl->SetGraphicsContext(ctx);
+    }
+#endif
+
 protected:
     // ctor takes ownership of the pointer
     wxDC(wxDCImpl *pimpl) : m_pimpl(pimpl) { }