// Created: 13.01.00
// RCS-ID: $Id$
// Copyright: (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_ENHMETA_H_
#define _WX_MSW_ENHMETA_H_
-#ifdef __GNUG__
- #pragma interface "enhmeta.h"
-#endif
-
#include "wx/dc.h"
#if wxUSE_DRAG_AND_DROP
public:
wxEnhMetaFile(const wxString& file = wxEmptyString) : m_filename(file)
{ Init(); }
- wxEnhMetaFile(const wxEnhMetaFile& metafile)
+ wxEnhMetaFile(const wxEnhMetaFile& metafile) : wxObject()
{ Init(); Assign(metafile); }
wxEnhMetaFile& operator=(const wxEnhMetaFile& metafile)
{ Free(); Assign(metafile); return *this; }
void SetHENHMETAFILE(WXHANDLE hMF) { Free(); m_hMF = hMF; }
protected:
- void Init() { m_hMF = 0; }
+ void Init();
void Free();
void Assign(const wxEnhMetaFile& mf);
// obtain a pointer to the new metafile (caller should delete it)
wxEnhMetaFile *Close();
+protected:
+ virtual void DoGetSize(int *width, int *height) const;
+
private:
- DECLARE_DYNAMIC_CLASS(wxEnhMetaFileDC)
+ // size passed to ctor and returned by DoGetSize()
+ int m_width,
+ m_height;
+
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxEnhMetaFileDC)
};
+#if wxUSE_DRAG_AND_DROP
+
// ----------------------------------------------------------------------------
// wxEnhMetaFileDataObject is a specialization of wxDataObject for enh metafile
// ----------------------------------------------------------------------------
-#if wxUSE_DRAG_AND_DROP
-
// notice that we want to support both CF_METAFILEPICT and CF_ENHMETAFILE and
// so we derive from wxDataObject and not from wxDataObjectSimple
class WXDLLEXPORT wxEnhMetaFileDataObject : public wxDataObject
protected:
wxEnhMetaFile m_metafile;
+
+ DECLARE_NO_COPY_CLASS(wxEnhMetaFileDataObject)
+};
+
+
+// ----------------------------------------------------------------------------
+// wxEnhMetaFileSimpleDataObject does derive from wxDataObjectSimple which
+// makes it more convenient to use (it can be used with wxDataObjectComposite)
+// at the price of not supoprting any more CF_METAFILEPICT but only
+// CF_ENHMETAFILE
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxEnhMetaFileSimpleDataObject : public wxDataObjectSimple
+{
+public:
+ // ctors
+ wxEnhMetaFileSimpleDataObject() : wxDataObjectSimple(wxDF_ENHMETAFILE) { }
+ wxEnhMetaFileSimpleDataObject(const wxEnhMetaFile& metafile)
+ : wxDataObjectSimple(wxDF_ENHMETAFILE), m_metafile(metafile) { }
+
+ // virtual functions which you may override if you want to provide data on
+ // demand only - otherwise, the trivial default versions will be used
+ virtual void SetEnhMetafile(const wxEnhMetaFile& metafile)
+ { m_metafile = metafile; }
+ virtual wxEnhMetaFile GetEnhMetafile() const
+ { return m_metafile; }
+
+ // implement base class pure virtuals
+ virtual size_t GetDataSize() const;
+ virtual bool GetDataHere(void *buf) const;
+ virtual bool SetData(size_t len, const void *buf);
+
+ virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const
+ { return GetDataSize(); }
+ virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
+ void *buf) const
+ { return GetDataHere(buf); }
+ virtual bool SetData(const wxDataFormat& WXUNUSED(format),
+ size_t len, const void *buf)
+ { return SetData(len, buf); }
+
+protected:
+ wxEnhMetaFile m_metafile;
+
+ DECLARE_NO_COPY_CLASS(wxEnhMetaFileSimpleDataObject)
};
#endif // wxUSE_DRAG_AND_DROP