Added wxPrivateDropTarget

[wxWidgets.git] / include / wx / msw / metafile.h

diff --git a/include/wx/msw/metafile.h b/include/wx/msw/metafile.h
index f8ad981949d1fb840f596f6b771bc627085ab6d5..d5f6f3f8db4e7099c61bac4381dec2984d2b3c65 100644 (file)
--- a/include/wx/msw/metafile.h
+++ b/include/wx/msw/metafile.h
@@ -21,69 +21,99 @@
 
 #if wxUSE_METAFILE
 #include "wx/dc.h"
+#include "wx/gdiobj.h"
+
+#if wxUSE_DRAG_AND_DROP
+#include "wx/dataobj.h"
+#endif
 
 /*
- * Metafile and metafile device context classes - work in Windows 3.1 only
+ * Metafile and metafile device context classes
  *
  */
 
-class WXDLLEXPORT wxDC;
-class WXDLLEXPORT wxMetaFile: public wxObject
+#define wxMetaFile wxMetafile
+#define wxMetaFileDC wxMetafileDC
+
+class WXDLLEXPORT wxMetafile;
+
+class WXDLLEXPORT wxMetafileRefData: public wxGDIRefData
 {
-  DECLARE_DYNAMIC_CLASS(wxMetaFile)
+    friend class WXDLLEXPORT wxMetafile;
+public:
+    wxMetafileRefData(void);
+    ~wxMetafileRefData(void);
+
+public:
+    WXHANDLE m_metafile;
+    int m_windowsMappingMode;
+};
+
+#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
+
+class WXDLLEXPORT wxMetafile: public wxGDIObject
+{
+  DECLARE_DYNAMIC_CLASS(wxMetafile)
  public:
-  wxMetaFile(const wxString& file = "");
-  ~wxMetaFile(void);
+  // Copy constructor
+  inline wxMetafile(const wxMetafile& metafile)
+  { Ref(metafile); }
+
+  wxMetafile(const wxString& file = "");
+  ~wxMetafile(void);
 
   // After this is called, the metafile cannot be used for anything
   // since it is now owned by the clipboard.
   virtual bool SetClipboard(int width = 0, int height = 0);
 
   virtual bool Play(wxDC *dc);
-  inline bool Ok(void) { return m_metaFile != 0; };
+  inline bool Ok(void) const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
 
   // Implementation
-  inline WXHANDLE GetHMETAFILE(void) { return m_metaFile; }
-  inline void SetHMETAFILE(WXHANDLE mf) { m_metaFile = mf; }
-  inline int GetWindowsMappingMode(void) { return m_windowsMappingMode; }
-  inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
+  inline WXHANDLE GetHMETAFILE(void) { return M_METAFILEDATA->m_metafile; }
+  void SetHMETAFILE(WXHANDLE mf) ;
+  inline int GetWindowsMappingMode(void) { return M_METAFILEDATA->m_windowsMappingMode; }
+  void SetWindowsMappingMode(int mm);
+
+  // Operators
+  inline wxMetafile& operator = (const wxMetafile& metafile) { if (*this == metafile) return (*this); Ref(metafile); return *this; }
+  inline bool operator == (const wxMetafile& metafile) { return m_refData == metafile.m_refData; }
+  inline bool operator != (const wxMetafile& metafile) { return m_refData != metafile.m_refData; }
 
 protected:
-  WXHANDLE m_metaFile;
-  int m_windowsMappingMode;
 };
 
-class WXDLLEXPORT wxMetaFileDC: public wxDC
+class WXDLLEXPORT wxMetafileDC: public wxDC
 {
-  DECLARE_DYNAMIC_CLASS(wxMetaFileDC)
+  DECLARE_DYNAMIC_CLASS(wxMetafileDC)
 
  public:
   // Don't supply origin and extent
   // Supply them to wxMakeMetaFilePlaceable instead.
-  wxMetaFileDC(const wxString& file = "");
+  wxMetafileDC(const wxString& file = "");
 
   // Supply origin and extent (recommended).
   // Then don't need to supply them to wxMakeMetaFilePlaceable.
-  wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
+  wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
 
-  ~wxMetaFileDC(void);
+  ~wxMetafileDC(void);
 
   // Should be called at end of drawing
-  virtual wxMetaFile *Close(void);
+  virtual wxMetafile *Close(void);
   virtual void SetMapMode(int mode);
   virtual void GetTextExtent(const wxString& string, long *x, long *y,
                      long *descent = NULL, long *externalLeading = NULL,
                      wxFont *theFont = NULL, bool use16bit = FALSE) const;
 
   // Implementation
-  inline wxMetaFile *GetMetaFile(void) { return m_metaFile; }
-  inline void SetMetaFile(wxMetaFile *mf) { m_metaFile = mf; }
-  inline int GetWindowsMappingMode(void) { return m_windowsMappingMode; }
+  inline wxMetafile *GetMetaFile(void) const { return m_metaFile; }
+  inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
+  inline int GetWindowsMappingMode(void) const { return m_windowsMappingMode; }
   inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
 
 protected:
-  int m_windowsMappingMode;
-  wxMetaFile *m_metaFile;
+  int           m_windowsMappingMode;
+  wxMetafile*   m_metaFile;
 };
 
 /*
@@ -94,11 +124,56 @@ protected:
  */
 
 // No origin or extent
-bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, float scale = 1.0);
+#define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable
+bool WXDLLEXPORT wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0);
 
 // Optional origin and extent
 bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE);
 
+// ----------------------------------------------------------------------------
+// wxMetafileDataObject is a specialization of wxDataObject for metafile data
+// ----------------------------------------------------------------------------
+
+// TODO: implement OLE side of things. At present, it's just for clipboard
+// use.
+
+#if wxUSE_DRAG_AND_DROP
+class WXDLLEXPORT wxMetafileDataObject : public wxDataObject
+{
+public:
+  // ctors
+  wxMetafileDataObject() { m_width = 0; m_height = 0; };
+  wxMetafileDataObject(const wxMetafile& metafile, int width = 0, int height = 0):
+    m_metafile(metafile), m_width(width), m_height(height) { }
+
+  void SetMetafile(const wxMetafile& metafile, int w = 0, int h = 0)
+    { m_metafile = metafile; m_width = w; m_height = h; }
+  wxMetafile GetMetafile() const { return m_metafile; }
+  int GetWidth() const { return m_width; }
+  int GetHeight() const { return m_height; }
+
+  virtual wxDataFormat GetFormat() const { return wxDF_METAFILE; }
+
+/* ??
+  // implement base class pure virtuals
+  virtual wxDataFormat GetPreferredFormat() const
+    { return (wxDataFormat) wxDataObject::Text; }
+  virtual bool IsSupportedFormat(wxDataFormat format) const
+    { return format == wxDataObject::Text || format == wxDataObject::Locale; }
+  virtual size_t GetDataSize() const
+    { return m_strText.Len() + 1; } // +1 for trailing '\0'of course
+  virtual void GetDataHere(void *pBuf) const
+    { memcpy(pBuf, m_strText.c_str(), GetDataSize()); }
+*/
+
+private:
+  wxMetafile   m_metafile;
+  int          m_width;
+  int          m_height;
+};
+#endif
+
 #endif // wxUSE_METAFILE
 #endif
     // _WX_METAFIILE_H_
+