5273bf2fd3
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13368 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
155 lines
4.5 KiB
C++
155 lines
4.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: metafile.h
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// Purpose: wxMetaFile, wxMetaFileDC classes.
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// This probably should be restricted to Windows platforms,
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// but if there is an equivalent on your platform, great.
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// Author: AUTHOR
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// Modified by:
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// Created: ??/??/98
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// RCS-ID: $Id$
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// Copyright: (c) AUTHOR
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_METAFIILE_H_
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#define _WX_METAFIILE_H_
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#if wxUSE_METAFILE
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#include "wx/dc.h"
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#include "wx/gdiobj.h"
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#if wxUSE_DATAOBJ
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#include "wx/dataobj.h"
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#endif
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/*
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* Metafile and metafile device context classes
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*
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*/
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#define wxMetaFile wxMetafile
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#define wxMetaFileDC wxMetafileDC
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class WXDLLEXPORT wxMetafile;
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class WXDLLEXPORT wxMetafileRefData: public wxGDIRefData
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{
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friend class WXDLLEXPORT wxMetafile;
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public:
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wxMetafileRefData(void);
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~wxMetafileRefData(void);
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public:
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WXHMETAFILE m_metafile;
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};
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#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
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class WXDLLEXPORT wxMetafile: public wxGDIObject
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{
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DECLARE_DYNAMIC_CLASS(wxMetafile)
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public:
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// Copy constructor
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inline wxMetafile(const wxMetafile& metafile)
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{ Ref(metafile); }
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wxMetafile(const wxString& file = "");
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~wxMetafile(void);
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// After this is called, the metafile cannot be used for anything
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// since it is now owned by the clipboard.
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virtual bool SetClipboard(int width = 0, int height = 0);
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virtual bool Play(wxDC *dc);
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inline bool Ok(void) const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
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// Implementation
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inline WXHMETAFILE GetHMETAFILE(void) { return M_METAFILEDATA->m_metafile; }
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void SetHMETAFILE(WXHMETAFILE mf) ;
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// Operators
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inline wxMetafile& operator = (const wxMetafile& metafile) { if (*this == metafile) return (*this); Ref(metafile); return *this; }
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inline bool operator == (const wxMetafile& metafile) { return m_refData == metafile.m_refData; }
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inline bool operator != (const wxMetafile& metafile) { return m_refData != metafile.m_refData; }
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protected:
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};
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class WXDLLEXPORT wxMetafileDC: public wxDC
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{
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DECLARE_DYNAMIC_CLASS(wxMetafileDC)
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public:
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// Don't supply origin and extent
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// Supply them to wxMakeMetaFilePlaceable instead.
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wxMetafileDC(const wxString& file = "");
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// Supply origin and extent (recommended).
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// Then don't need to supply them to wxMakeMetaFilePlaceable.
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wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
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~wxMetafileDC(void);
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// Should be called at end of drawing
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virtual wxMetafile *Close(void);
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// Implementation
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inline wxMetafile *GetMetaFile(void) const { return m_metaFile; }
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inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
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protected:
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wxMetafile* m_metaFile;
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};
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/*
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* Pass filename of existing non-placeable metafile, and bounding box.
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* Adds a placeable metafile header, sets the mapping mode to anisotropic,
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* and sets the window origin and extent to mimic the wxMM_TEXT mapping mode.
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*
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*/
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// No origin or extent
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#define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable
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bool WXDLLEXPORT wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0);
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// Optional origin and extent
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bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE);
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// ----------------------------------------------------------------------------
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// wxMetafileDataObject is a specialization of wxDataObject for metafile data
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// ----------------------------------------------------------------------------
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#if wxUSE_DATAOBJ
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class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple
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{
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public:
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// ctors
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wxMetafileDataObject()
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: wxDataObjectSimple(wxDF_METAFILE) { };
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wxMetafileDataObject(const wxMetafile& metafile)
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: wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { }
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// virtual functions which you may override if you want to provide data on
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// demand only - otherwise, the trivial default versions will be used
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virtual void SetMetafile(const wxMetafile& metafile)
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{ m_metafile = metafile; }
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virtual wxMetafile GetMetafile() const
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{ return m_metafile; }
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// implement base class pure virtuals
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virtual size_t GetDataSize() const;
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virtual bool GetDataHere(void *buf) const;
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virtual bool SetData(size_t len, const void *buf);
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protected:
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wxMetafile m_metafile;
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};
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#endif
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#endif // wxUSE_METAFILE
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#endif
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// _WX_METAFIILE_H_
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