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[wxWidgets.git] / include / wx / os2 / metafile.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: metafile.h
3// Purpose: wxMetaFile, wxMetaFileDC classes.
4// This probably should be restricted to Windows platforms,
5// but if there is an equivalent on your platform, great.
6// Author: AUTHOR
7// Modified by:
8// Created: ??/??/98
9// RCS-ID: $Id$
10// Copyright: (c) AUTHOR
11// Licence: wxWindows licence
12/////////////////////////////////////////////////////////////////////////////
13
14
15#ifndef _WX_METAFIILE_H_
16#define _WX_METAFIILE_H_
17
18#ifdef __GNUG__
19#pragma interface "metafile.h"
20#endif
21
22#include "wx/setup.h"
a419c3b1 23#include "wx/dc.h"
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24
25/*
26 * Metafile and metafile device context classes - work in Windows 3.1 only
27 *
28 */
29
30class WXDLLEXPORT wxDC;
31class WXDLLEXPORT wxMetaFile: public wxObject
32{
33 DECLARE_DYNAMIC_CLASS(wxMetaFile)
34 public:
35 wxMetaFile(const wxString& file = "");
36 ~wxMetaFile();
37
38 // After this is called, the metafile cannot be used for anything
39 // since it is now owned by the clipboard.
40 virtual bool SetClipboard(int width = 0, int height = 0);
41
42 virtual bool Play(wxDC *dc);
43 // TODO
44 inline bool Ok() { return FALSE; };
45
46/* TODO: Implementation
47 inline WXHANDLE GetHMETAFILE() { return m_metaFile; }
48 inline void SetHMETAFILE(WXHANDLE mf) { m_metaFile = mf; }
49
50protected:
51 WXHANDLE m_metaFile;
52*/
53};
54
55class WXDLLEXPORT wxMetaFileDC: public wxDC
56{
57 DECLARE_DYNAMIC_CLASS(wxMetaFileDC)
58
59 public:
60 // Don't supply origin and extent
61 // Supply them to wxMakeMetaFilePlaceable instead.
62 wxMetaFileDC(const wxString& file = "");
63
64 // Supply origin and extent (recommended).
65 // Then don't need to supply them to wxMakeMetaFilePlaceable.
66 wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
67
68 ~wxMetaFileDC();
69
70 // Should be called at end of drawing
71 virtual wxMetaFile *Close();
72 virtual void SetMapMode(int mode);
73 virtual void GetTextExtent(const wxString& string, float *x, float *y,
74 float *descent = NULL, float *externalLeading = NULL,
75 wxFont *theFont = NULL, bool use16bit = FALSE);
76
77 // Implementation
78 inline wxMetaFile *GetMetaFile() { return m_metaFile; }
79 inline void SetMetaFile(wxMetaFile *mf) { m_metaFile = mf; }
80 inline int GetWindowsMappingMode() { return m_windowsMappingMode; }
81 inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
82
83protected:
84 int m_windowsMappingMode;
85 wxMetaFile *m_metaFile;
86};
87
88/*
89 * Pass filename of existing non-placeable metafile, and bounding box.
90 * Adds a placeable metafile header, sets the mapping mode to anisotropic,
91 * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode.
92 *
93 */
94
95// No origin or extent
96bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, float scale = 1.0);
97
98// Optional origin and extent
99bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE);
100
101#endif
102 // _WX_METAFIILE_H_