X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/906c935a80b10d53cecf57f71ab5f3f4f1d529ec..40df8a51f2d922237dd11a5ff14532ea744027b7:/include/wx/dc.h

diff --git a/include/wx/dc.h b/include/wx/dc.h
index f6346888ac..34f58e2662 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
 {
@@ -279,6 +283,8 @@ public:
         return NULL;
     }
 
+    virtual void* GetHandle() const { return NULL; }
+    
     // query dimension, colour deps, resolution
 
     virtual void DoGetSize(int *width, int *height) const = 0;
@@ -427,8 +433,12 @@ public:
 
     // clipping
 
+    // Note that this pure virtual method has an implementation that updates
+    // the values returned by DoGetClippingBox() and so can be called from the
+    // derived class overridden version if it makes sense (i.e. if the clipping
+    // box coordinates are not already updated in some other way).
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
-                                     wxCoord width, wxCoord height) = 0;
+                                     wxCoord w, wxCoord h) = 0;
 
     // NB: this function works with device coordinates, not the logical ones!
     virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;
@@ -471,7 +481,7 @@ 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;
@@ -640,6 +650,13 @@ 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;
 
@@ -776,6 +793,9 @@ public:
     wxWindow *GetWindow() const
         { return m_pimpl->GetWindow(); }
 
+    void *GetHandle() const
+        { return m_pimpl->GetHandle(); }
+
     bool IsOk() const
         { return m_pimpl && m_pimpl->IsOk(); }
 
@@ -1009,7 +1029,7 @@ 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)
@@ -1329,6 +1349,17 @@ 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) { }