// Purpose: wxMetaFile, wxMetaFileDC classes.
// This probably should be restricted to Windows platforms,
// but if there is an equivalent on your platform, great.
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: ??/??/98
+// Created: 10/10/99
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
-// Licence: wxWindows licence
+// Copyright: (c) David Webster
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_METAFIILE_H_
#define _WX_METAFIILE_H_
-#ifdef __GNUG__
-#pragma interface "metafile.h"
-#endif
-
-#include "wx/setup.h"
#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
-{
- DECLARE_DYNAMIC_CLASS(wxMetaFile)
- public:
- wxMetaFile(const wxString& file = "");
- ~wxMetaFile();
+#define wxMetaFile wxMetafile
+#define wxMetaFileDC wxMetafileDC
- // 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);
+class WXDLLEXPORT wxMetafile;
- virtual bool Play(wxDC *dc);
- // TODO
- inline bool Ok() { return FALSE; };
+class WXDLLEXPORT wxMetafileRefData: public wxGDIRefData
+{
+ friend class WXDLLEXPORT wxMetafile;
+public:
+ wxMetafileRefData(void);
+ ~wxMetafileRefData(void);
+
+public:
+ WXHANDLE m_metafile;
+ int m_windowsMappingMode;
+};
-/* TODO: Implementation
- inline WXHANDLE GetHMETAFILE() { return m_metaFile; }
- inline void SetHMETAFILE(WXHANDLE mf) { m_metaFile = mf; }
+#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
-protected:
- WXHANDLE m_metaFile;
-*/
+class WXDLLEXPORT wxMetafile: public wxGDIObject
+{
+ DECLARE_DYNAMIC_CLASS(wxMetafile)
+public:
+ // Copy constructor
+ inline wxMetafile(const wxMetafile& metafile)
+ { Ref(metafile); }
+
+ wxMetafile(const wxString& file = wxEmptyString);
+ ~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) const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
+
+ // Implementation
+ 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) const
+ { return m_refData == metafile.m_refData; }
+ inline bool operator!= (const wxMetafile& metafile) const
+ { return m_refData != metafile.m_refData; }
};
-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 = "");
+public:
+ // Don't supply origin and extent
+ // Supply them to wxMakeMetaFilePlaceable instead.
+ wxMetafileDC(const wxString& file = wxEmptyString);
- // 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);
+ // 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();
+ ~wxMetafileDC(void);
- // Should be called at end of drawing
- virtual wxMetaFile *Close();
- virtual void SetMapMode(int mode);
- virtual void GetTextExtent(const wxString& string, float *x, float *y,
- float *descent = NULL, float *externalLeading = NULL,
- wxFont *theFont = NULL, bool use16bit = FALSE);
+ // Should be called at end of drawing
+ 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() { return m_metaFile; }
- inline void SetMetaFile(wxMetaFile *mf) { m_metaFile = mf; }
- inline int GetWindowsMappingMode() { return m_windowsMappingMode; }
- inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
+ // Implementation
+ 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;
+
+private:
+#ifndef __WATCOMC__
+ // function hiding warning supression
+ // still required ??
+ inline virtual void GetTextExtent( const wxString& string
+ ,long* width
+ ,long* height
+ ,long* descent = NULL
+ ,long* externalLeading = NULL
+ ,wxFont* theFont = NULL
+ ) const
+ { GetTextExtent( string, width, height, descent, externalLeading, theFont, false);};
+#endif
};
/*
*/
// 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);
+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
// _WX_METAFIILE_H_
projects / wxWidgets.git / blobdiff