// 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: Stefan Csomor
// Modified by:
-// Created: ??/??/98
+// Created: 1998-01-01
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
-// Licence: wxWindows licence
+// Copyright: (c) Stefan Csomor
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_METAFIILE_H_
#define _WX_METAFIILE_H_
-#ifdef __GNUG__
-#pragma interface "metafile.h"
-#endif
+#if wxUSE_METAFILE
+#include "wx/dc.h"
+#include "wx/gdiobj.h"
-#include "wx/setup.h"
+#if wxUSE_DATAOBJ
+#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)
- public:
- wxMetaFile(const wxString& file = "");
- ~wxMetaFile();
+ friend class WXDLLEXPORT wxMetafile;
+public:
+ wxMetafileRefData(void);
+ ~wxMetafileRefData(void);
+
+public:
+ WXHMETAFILE m_metafile;
+};
+
+#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
+
+class WXDLLEXPORT wxMetafile: public wxGDIObject
+{
+ DECLARE_DYNAMIC_CLASS(wxMetafile)
+public:
+ // Copy constructor
+ wxMetafile(const wxMetafile& metafile)
+ : wxGDIObject()
+ { 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);
+ // 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);
- // TODO
- inline bool Ok() { return FALSE; };
+ virtual bool Play(wxDC *dc);
+ inline bool Ok(void) const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
-/* TODO: Implementation
- inline WXHANDLE GetHMETAFILE() { return m_metaFile; }
- inline void SetHMETAFILE(WXHANDLE mf) { m_metaFile = mf; }
+ wxSize GetSize() const;
+ int GetWidth() const { return GetSize().x; }
+ int GetHeight() const { return GetSize().y; }
+
+ // Implementation
+ inline WXHMETAFILE GetHMETAFILE() const { return M_METAFILEDATA->m_metafile; }
+ void SetHMETAFILE(WXHMETAFILE mf) ;
+
+ // 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;
-*/
};
-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 = "");
-
- // 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);
+ // the ctor parameters specify the filename (empty for memory metafiles),
+ // the metafile picture size and the optional description/comment
+ wxMetafileDC(const wxString& filename = wxEmptyString,
+ int width = 0, int height = 0,
+ const wxString& description = wxEmptyString);
- ~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);
+ virtual wxMetafile *Close(void);
+ virtual void DoGetSize(int *width, int *height) 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; }
+ inline wxMetafile *GetMetaFile(void) const { return m_metaFile; }
+ inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
protected:
- int m_windowsMappingMode;
- wxMetaFile *m_metaFile;
+ wxMetafile* m_metaFile;
};
/*
* Pass filename of existing non-placeable metafile, and bounding box.
* Adds a placeable metafile header, sets the mapping mode to anisotropic,
- * and sets the window origin and extent to mimic the MM_TEXT mapping mode.
+ * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode.
*
*/
// 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
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DATAOBJ
+class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple
+{
+public:
+ // ctors
+ wxMetafileDataObject()
+ : wxDataObjectSimple(wxDF_METAFILE) { };
+ wxMetafileDataObject(const wxMetafile& metafile)
+ : wxDataObjectSimple(wxDF_METAFILE), 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 SetMetafile(const wxMetafile& metafile)
+ { m_metafile = metafile; }
+ virtual wxMetafile GetMetafile() 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:
+ wxMetafile m_metafile;
+};
+#endif
+
+#endif // wxUSE_METAFILE
+
+
#endif
// _WX_METAFIILE_H_
projects / wxWidgets.git / blobdiff