avoid GCC warning about type-punned pointer breaking strict aliasing rules

[wxWidgets.git] / include / wx / mac / carbon / metafile.h

diff --git a/include/wx/mac/carbon/metafile.h b/include/wx/mac/carbon/metafile.h
index d6f7fe2cb7a4fa4aacdd3142f31a5400ae01bd9c..694e45fb28b9aee8568c939d042897d10e3a87e6 100644 (file)
--- a/include/wx/mac/carbon/metafile.h
+++ b/include/wx/mac/carbon/metafile.h
@@ -22,6 +22,8 @@
 #include "wx/dataobj.h"
 #endif
 
 #include "wx/dataobj.h"
 #endif
 

+#include "wx/mac/carbon/dcclient.h"
+

 /*
  * Metafile and metafile device context classes
  *
 /*
  * Metafile and metafile device context classes
  *


@@ -35,9 +37,8 @@ class wxMetafileRefData ;
 
 #define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
 
 
 #define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
 

-class WXDLLEXPORT wxMetafile: public wxGDIObject
+class WXDLLEXPORT wxMetafile : public wxGDIObject

 {
 {

-    DECLARE_DYNAMIC_CLASS(wxMetafile)

 public:
     wxMetafile(const wxString& file = wxEmptyString);
     virtual ~wxMetafile(void);
 public:
     wxMetafile(const wxString& file = wxEmptyString);
     virtual ~wxMetafile(void);


@@ -47,8 +48,6 @@ public:
     virtual bool SetClipboard(int width = 0, int height = 0);
 
     virtual bool Play(wxDC *dc);
     virtual bool SetClipboard(int width = 0, int height = 0);
 
     virtual bool Play(wxDC *dc);

-    bool Ok() const { return IsOk(); }
-    bool IsOk() const ;

 
     wxSize GetSize() const;
     int GetWidth() const { return GetSize().x; }
 
     wxSize GetSize() const;
     int GetWidth() const { return GetSize().x; }


@@ -57,34 +56,71 @@ public:
     // Implementation
     WXHMETAFILE GetHMETAFILE() const ;
     void SetHMETAFILE(WXHMETAFILE mf) ;
     // Implementation
     WXHMETAFILE GetHMETAFILE() const ;
     void SetHMETAFILE(WXHMETAFILE mf) ;

+#ifndef __LP64__
+    // Since the native metafile format is PDF for Quartz
+    // we need a call that allows setting PICT content for
+    // backwards compatibility
+    void SetPICT(void* pictHandle) ;
+#endif
+
+protected:
+    virtual wxGDIRefData *CreateGDIRefData() const;
+    virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
+
+    DECLARE_DYNAMIC_CLASS(wxMetafile)

 };
 
 };
 

-class WXDLLEXPORT wxMetafileDC: public wxDC
+
+class WXDLLEXPORT wxMetafileDCImpl: public wxGCDCImpl

 {
 {

-  DECLARE_DYNAMIC_CLASS(wxMetafileDC)
+public:
+    wxMetafileDCImpl( wxDC *owner,
+                      const wxString& filename,
+                      int width, int height,
+                      const wxString& description );
+
+    virtual ~wxMetafileDCImpl();
+
+    // Should be called at end of drawing
+    virtual wxMetafile *Close();
+
+    // Implementation
+    wxMetafile *GetMetaFile(void) const { return m_metaFile; }
+    void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }

 
 

+protected:
+    virtual void DoGetSize(int *width, int *height) const;
+
+    wxMetafile*   m_metaFile;
+
+private:
+    DECLARE_CLASS(wxMetafileDCImpl)
+    DECLARE_NO_COPY_CLASS(wxMetafileDCImpl)
+};
+
+class WXDLLEXPORT wxMetafileDC: public wxDC
+{

  public:
     // the ctor parameters specify the filename (empty for memory metafiles),
     // the metafile picture size and the optional description/comment
  public:
     // the ctor parameters specify the filename (empty for memory metafiles),
     // the metafile picture size and the optional description/comment

-    wxMetafileDC(const wxString& filename = wxEmptyString,
+    wxMetafileDC(  const wxString& filename = wxEmptyString,

                     int width = 0, int height = 0,
                     int width = 0, int height = 0,

-                    const wxString& description = wxEmptyString);
-
-  virtual ~wxMetafileDC(void);
-
-  // Should be called at end of drawing
-  virtual wxMetafile *Close(void);
+                    const wxString& description = wxEmptyString ) :
+      wxDC( new wxMetafileDCImpl( this, filename, width, height, description) )
+    { }

 
 

-  // Implementation
-  inline wxMetafile *GetMetaFile(void) const { return m_metaFile; }
-  inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
+    wxMetafile *GetMetafile() const
+       { return ((wxMetafileDCImpl*)m_pimpl)->GetMetaFile(); }

 
 

-protected:
-    virtual void DoGetSize(int *width, int *height) const;
+    wxMetafile *Close()
+       { return ((wxMetafileDCImpl*)m_pimpl)->Close(); }

 
 

-  wxMetafile*   m_metaFile;
+private:
+    DECLARE_CLASS(wxMetafileDC)
+    DECLARE_NO_COPY_CLASS(wxMetafileDC)

 };
 
 };
 

+

 /*
  * Pass filename of existing non-placeable metafile, and bounding box.
  * Adds a placeable metafile header, sets the mapping mode to anisotropic,
 /*
  * Pass filename of existing non-placeable metafile, and bounding box.
  * Adds a placeable metafile header, sets the mapping mode to anisotropic,


@@ -108,7 +144,7 @@ class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple
 {
 public:
   // ctors
 {
 public:
   // ctors

-  wxMetafileDataObject() 
+  wxMetafileDataObject()

     : wxDataObjectSimple(wxDF_METAFILE) {  };
   wxMetafileDataObject(const wxMetafile& metafile)
     : wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { }
     : wxDataObjectSimple(wxDF_METAFILE) {  };
   wxMetafileDataObject(const wxMetafile& metafile)
     : wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { }