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fix wxBitmapComboBox Gtk-CRITICAL assertion `GTK_IS_ENTRY (entry)' failed
[wxWidgets.git] / include / wx / os2 / metafile.h
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0e320a79 1/////////////////////////////////////////////////////////////////////////////
80fdcdb9 2// Name: wx/os2/metafile.h
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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.
75f11ad7 6// Author: David Webster
0e320a79 7// Modified by:
75f11ad7 8// Created: 10/10/99
0e320a79 9// RCS-ID: $Id$
75f11ad7 10// Copyright: (c) David Webster
65571936 11// Licence: wxWindows licence
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12/////////////////////////////////////////////////////////////////////////////
13
14
15#ifndef _WX_METAFIILE_H_
16#define _WX_METAFIILE_H_
17
a419c3b1 18#include "wx/dc.h"
75f11ad7 19#include "wx/gdiobj.h"
4b3f61d1 20#include "wx/os2/dc.h"
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21
22#if wxUSE_DRAG_AND_DROP
23#include "wx/dataobj.h"
24#endif
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25
26/*
75f11ad7 27 * Metafile and metafile device context classes
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28 *
29 */
30
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31#define wxMetaFile wxMetafile
32#define wxMetaFileDC wxMetafileDC
33
b5dbe15d 34class WXDLLIMPEXP_FWD_CORE wxMetafile;
75f11ad7 35
53a2db12 36class WXDLLIMPEXP_CORE wxMetafileRefData: public wxGDIRefData
75f11ad7 37{
b5dbe15d 38 friend class WXDLLIMPEXP_FWD_CORE wxMetafile;
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39public:
40 wxMetafileRefData(void);
d3c7fc99 41 virtual ~wxMetafileRefData(void);
75f11ad7 42
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43 virtual bool IsOk() const { return m_metafile != 0; }
44
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45public:
46 WXHANDLE m_metafile;
47 int m_windowsMappingMode;
48};
49
50#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
51
53a2db12 52class WXDLLIMPEXP_CORE wxMetafile: public wxGDIObject
0e320a79 53{
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54 DECLARE_DYNAMIC_CLASS(wxMetafile)
55public:
c40158e4 56 wxMetafile(const wxString& file = wxEmptyString);
d3c7fc99 57 virtual ~wxMetafile(void);
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58
59 // After this is called, the metafile cannot be used for anything
60 // since it is now owned by the clipboard.
61 virtual bool SetClipboard(int width = 0, int height = 0);
62
63 virtual bool Play(wxDC *dc);
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64
65 // Implementation
66 inline WXHANDLE GetHMETAFILE(void) { return M_METAFILEDATA->m_metafile; }
67 void SetHMETAFILE(WXHANDLE mf) ;
68 inline int GetWindowsMappingMode(void) { return M_METAFILEDATA->m_windowsMappingMode; }
69 void SetWindowsMappingMode(int mm);
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70
71protected:
72 virtual wxGDIRefData *CreateGDIRefData() const;
73 virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
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74};
75
53a2db12 76class WXDLLIMPEXP_CORE wxMetafileDCImpl: public wxPMDCImpl
0e320a79 77{
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78public:
79 wxMetafileDCImpl(wxDC *owner, const wxString& file = wxEmptyString);
80 wxMetafileDCImpl(wxDC *owner, const wxString& file,
81 int xext, int yext, int xorg, int yorg);
82 virtual ~wxMetafileDCImpl();
83
84 virtual wxMetafile *Close();
89efaf2b 85 virtual void SetMapMode(wxMappingMode mode);
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86 virtual void DoGetTextExtent(const wxString& string,
87 wxCoord *x, wxCoord *y,
88 wxCoord *descent = NULL,
89 wxCoord *externalLeading = NULL,
90 const wxFont *theFont = NULL) const;
91
92 // Implementation
93 wxMetafile *GetMetaFile() const { return m_metaFile; }
94 void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
95 int GetWindowsMappingMode() const { return m_windowsMappingMode; }
96 void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
97
98protected:
99 virtual void DoGetSize(int *width, int *height) const;
100
101 int m_windowsMappingMode;
102 wxMetafile* m_metaFile;
0e320a79 103
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104private:
105 DECLARE_CLASS(wxMetafileDCImpl)
c0c133e1 106 wxDECLARE_NO_COPY_CLASS(wxMetafileDCImpl);
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107};
108
53a2db12 109class WXDLLIMPEXP_CORE wxMetafileDC: public wxDC
4b3f61d1 110{
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111public:
112 // Don't supply origin and extent
113 // Supply them to wxMakeMetaFilePlaceable instead.
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114 wxMetafileDC(const wxString& file = wxEmptyString)
115 :wxDC(new wxMetafileDCImpl( this, file ))
116 { }
0e320a79 117
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118 // Supply origin and extent (recommended).
119 // Then don't need to supply them to wxMakeMetaFilePlaceable.
4b3f61d1 120 wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
2c6dbc21 121 : wxDC(new wxMetafileDCImpl( this, file, xext, yext, xorg, yorg ))
4b3f61d1 122 { }
0e320a79 123
2c6dbc21 124 wxMetafile *GetMetafile() const
4b3f61d1 125 { return ((wxMetafileDCImpl*)m_pimpl)->GetMetaFile(); }
0e320a79 126
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127 virtual ~wxMetafileDC(void)
128 { delete m_pimpl; }
0e320a79 129
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130 // Should be called at end of drawing
131 virtual wxMetafile *Close(void)
132 { return ((wxMetafileDCImpl*)m_pimpl)->Close(); }
0e320a79 133
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134 inline void SetMetaFile(wxMetafile *mf)
135 { ((wxMetafileDCImpl*)m_pimpl)->SetMetaFile(mf); }
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136
137private:
4b3f61d1 138 DECLARE_CLASS(wxMetafileDC)
c0c133e1 139 wxDECLARE_NO_COPY_CLASS(wxMetafileDC);
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140};
141
142/*
143 * Pass filename of existing non-placeable metafile, and bounding box.
144 * Adds a placeable metafile header, sets the mapping mode to anisotropic,
145 * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode.
146 *
147 */
148
149// No origin or extent
75f11ad7 150#define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable
53a2db12 151bool WXDLLIMPEXP_CORE wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0);
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152
153// Optional origin and extent
53a2db12 154bool WXDLLIMPEXP_CORE wxMakeMetaFilePlaceable( const wxString& filename
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155 ,int x1
156 ,int y1
157 ,int x2
158 ,int y2
159 ,float scale = 1.0
160 ,bool useOriginAndExtent = true
161 );
0e320a79 162
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163// ----------------------------------------------------------------------------
164// wxMetafileDataObject is a specialization of wxDataObject for metafile data
165// ----------------------------------------------------------------------------
166
167// TODO: implement OLE side of things. At present, it's just for clipboard
168// use.
169
170#if wxUSE_DRAG_AND_DROP
53a2db12 171class WXDLLIMPEXP_CORE wxMetafileDataObject : public wxDataObject
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172{
173public:
c40158e4 174 // ctors
6dd0883d 175 wxMetafileDataObject() { m_width = 0; m_height = 0; }
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176 wxMetafileDataObject(const wxMetafile& metafile, int width = 0,int height = 0)
177 :m_metafile(metafile)
178 ,m_width(width)
179 ,m_height(height) { }
75f11ad7 180
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181 void SetMetafile(const wxMetafile& metafile, int w = 0, int h = 0)
182 { m_metafile = metafile; m_width = w; m_height = h; }
183 wxMetafile GetMetafile() const { return m_metafile; }
184 int GetWidth() const { return m_width; }
185 int GetHeight() const { return m_height; }
75f11ad7 186
c40158e4 187 virtual wxDataFormat GetFormat() const { return wxDF_METAFILE; }
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188
189/* ??
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190 // implement base class pure virtuals
191 virtual wxDataFormat GetPreferredFormat() const
192 { return (wxDataFormat) wxDataObject::Text; }
193 virtual bool IsSupportedFormat(wxDataFormat format) const
194 { return format == wxDataObject::Text || format == wxDataObject::Locale; }
195 virtual size_t GetDataSize() const
196 { return m_strText.Len() + 1; } // +1 for trailing '\0'of course
197 virtual void GetDataHere(void *pBuf) const
198 { memcpy(pBuf, m_strText.c_str(), GetDataSize()); }
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199*/
200
201private:
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202 wxMetafile m_metafile;
203 int m_width;
204 int m_height;
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205};
206#endif
207
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208#endif
209 // _WX_METAFIILE_H_