X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1be7a35c5ec31b6cfcab9d969c7969586441a945..196a75d48d1076cfa0922720c1b840d495fe2f3d:/include/wx/dcmemory.h

diff --git a/include/wx/dcmemory.h b/include/wx/dcmemory.h
index bddbd093ea..9618b55a22 100644
--- a/include/wx/dcmemory.h
+++ b/include/wx/dcmemory.h
@@ -12,6 +12,91 @@
 #ifndef _WX_DCMEMORY_H_BASE_
 #define _WX_DCMEMORY_H_BASE_
 
+#include "wx/dc.h"
+#include "wx/bitmap.h"
+
+
+#if wxUSE_NEW_DC
+
+//-----------------------------------------------------------------------------
+// wxMemoryDC
+//-----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxMemoryImplDCBase
+{
+public:
+    wxMemoryImplDCBase() { }
+
+    virtual void DoSelect(const wxBitmap& bmp) = 0;
+    
+    virtual const wxBitmap& DoGetSelectedBitmap() const = 0;
+    virtual wxBitmap& DoGetSelectedBitmap() = 0;
+};
+
+
+class WXDLLIMPEXP_CORE wxMemoryDC: public wxDC
+{
+public:
+    wxMemoryDC();
+    wxMemoryDC( wxBitmap& bitmap );
+    wxMemoryDC( wxDC *dc );
+    
+    // select the given bitmap to draw on it
+    void SelectObject(wxBitmap& bmp);
+
+    // select the given bitmap for read-only
+    void SelectObjectAsSource(const wxBitmap& bmp);
+    
+    // get selected bitmap
+    const wxBitmap& GetSelectedBitmap() const;
+    wxBitmap& GetSelectedBitmap();
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxMemoryDC)
+};
+    
+
+
+#else
+
+// NOTE: different native implementations of wxMemoryDC will derive from
+//       different wxDC classes (wxPaintDC, wxWindowDC, etc), so that
+//       we cannot derive wxMemoryDCBase from wxDC and then use it as the
+//       only base class for native impl of wxMemoryDC...
+class WXDLLEXPORT wxMemoryDCBase
+{
+public:
+    wxMemoryDCBase() { }
+
+    // avoid warnings about having virtual functions but non virtual dtor
+    virtual ~wxMemoryDCBase() { }
+
+    // select the given bitmap to draw on it
+    void SelectObject(wxBitmap& bmp)
+    {
+        // make sure that the given wxBitmap is not sharing its data with other
+        // wxBitmap instances as its contents will be modified by any drawing
+        // operation done on this DC
+        if (bmp.IsOk())
+            bmp.UnShare();
+
+        DoSelect(bmp);
+    }
+
+    // select the given bitmap for read-only
+    virtual void SelectObjectAsSource(const wxBitmap& bmp)
+    {
+        DoSelect(bmp);
+    }
+
+protected:
+    virtual void DoSelect(const wxBitmap& bmp) = 0;
+};
+
+
+#endif
+
+
 #if defined(__WXPALMOS__)
 #include "wx/palmos/dcmemory.h"
 #elif defined(__WXMSW__)
@@ -26,6 +111,8 @@
 #include "wx/x11/dcmemory.h"
 #elif defined(__WXMGL__)
 #include "wx/mgl/dcmemory.h"
+#elif defined(__WXDFB__)
+#include "wx/dfb/dcmemory.h"
 #elif defined(__WXMAC__)
 #include "wx/mac/dcmemory.h"
 #elif defined(__WXCOCOA__)