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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: Stefan Csomor | |
7 | // Modified by: | |
8 | // Created: 1998-01-01 | |
9 | // RCS-ID: $Id$ | |
10 | // Copyright: (c) Stefan Csomor | |
11 | // Licence: wxWindows licence | |
12 | ///////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | ||
15 | #ifndef _WX_METAFIILE_H_ | |
16 | #define _WX_METAFIILE_H_ | |
17 | ||
18 | #include "wx/dc.h" | |
19 | #include "wx/gdiobj.h" | |
20 | ||
21 | #if wxUSE_DATAOBJ | |
22 | #include "wx/dataobj.h" | |
23 | #endif | |
24 | ||
25 | #include "wx/osx/carbon/dcclient.h" | |
26 | ||
27 | /* | |
28 | * Metafile and metafile device context classes | |
29 | * | |
30 | */ | |
31 | ||
32 | #define wxMetaFile wxMetafile | |
33 | #define wxMetaFileDC wxMetafileDC | |
34 | ||
35 | class WXDLLIMPEXP_FWD_CORE wxMetafile; | |
36 | class wxMetafileRefData ; | |
37 | ||
38 | #define M_METAFILEDATA ((wxMetafileRefData *)m_refData) | |
39 | ||
40 | class WXDLLIMPEXP_CORE wxMetafile : public wxGDIObject | |
41 | { | |
42 | public: | |
43 | wxMetafile(const wxString& file = wxEmptyString); | |
44 | virtual ~wxMetafile(void); | |
45 | ||
46 | // After this is called, the metafile cannot be used for anything | |
47 | // since it is now owned by the clipboard. | |
48 | virtual bool SetClipboard(int width = 0, int height = 0); | |
49 | ||
50 | virtual bool Play(wxDC *dc); | |
51 | ||
52 | wxSize GetSize() const; | |
53 | int GetWidth() const { return GetSize().x; } | |
54 | int GetHeight() const { return GetSize().y; } | |
55 | ||
56 | // Implementation | |
57 | WXHMETAFILE GetHMETAFILE() const ; | |
58 | void SetHMETAFILE(WXHMETAFILE mf) ; | |
59 | #ifndef __LP64__ | |
60 | // Since the native metafile format is PDF for Quartz | |
61 | // we need a call that allows setting PICT content for | |
62 | // backwards compatibility | |
63 | void SetPICT(void* pictHandle) ; | |
64 | #endif | |
65 | ||
66 | protected: | |
67 | virtual wxGDIRefData *CreateGDIRefData() const; | |
68 | virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const; | |
69 | ||
70 | DECLARE_DYNAMIC_CLASS(wxMetafile) | |
71 | }; | |
72 | ||
73 | ||
74 | class WXDLLIMPEXP_CORE wxMetafileDCImpl: public wxGCDCImpl | |
75 | { | |
76 | public: | |
77 | wxMetafileDCImpl( wxDC *owner, | |
78 | const wxString& filename, | |
79 | int width, int height, | |
80 | const wxString& description ); | |
81 | ||
82 | virtual ~wxMetafileDCImpl(); | |
83 | ||
84 | // Should be called at end of drawing | |
85 | virtual wxMetafile *Close(); | |
86 | ||
87 | // Implementation | |
88 | wxMetafile *GetMetaFile(void) const { return m_metaFile; } | |
89 | void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; } | |
90 | ||
91 | protected: | |
92 | virtual void DoGetSize(int *width, int *height) const; | |
93 | ||
94 | wxMetafile* m_metaFile; | |
95 | ||
96 | private: | |
97 | DECLARE_CLASS(wxMetafileDCImpl) | |
98 | DECLARE_NO_COPY_CLASS(wxMetafileDCImpl) | |
99 | }; | |
100 | ||
101 | class WXDLLIMPEXP_CORE wxMetafileDC: public wxDC | |
102 | { | |
103 | public: | |
104 | // the ctor parameters specify the filename (empty for memory metafiles), | |
105 | // the metafile picture size and the optional description/comment | |
106 | wxMetafileDC( const wxString& filename = wxEmptyString, | |
107 | int width = 0, int height = 0, | |
108 | const wxString& description = wxEmptyString ) : | |
109 | wxDC( new wxMetafileDCImpl( this, filename, width, height, description) ) | |
110 | { } | |
111 | ||
112 | wxMetafile *GetMetafile() const | |
113 | { return ((wxMetafileDCImpl*)m_pimpl)->GetMetaFile(); } | |
114 | ||
115 | wxMetafile *Close() | |
116 | { return ((wxMetafileDCImpl*)m_pimpl)->Close(); } | |
117 | ||
118 | private: | |
119 | DECLARE_CLASS(wxMetafileDC) | |
120 | DECLARE_NO_COPY_CLASS(wxMetafileDC) | |
121 | }; | |
122 | ||
123 | ||
124 | /* | |
125 | * Pass filename of existing non-placeable metafile, and bounding box. | |
126 | * Adds a placeable metafile header, sets the mapping mode to anisotropic, | |
127 | * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode. | |
128 | * | |
129 | */ | |
130 | ||
131 | // No origin or extent | |
132 | #define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable | |
133 | bool WXDLLIMPEXP_CORE wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0); | |
134 | ||
135 | // Optional origin and extent | |
136 | bool WXDLLIMPEXP_CORE wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE); | |
137 | ||
138 | // ---------------------------------------------------------------------------- | |
139 | // wxMetafileDataObject is a specialization of wxDataObject for metafile data | |
140 | // ---------------------------------------------------------------------------- | |
141 | ||
142 | #if wxUSE_DATAOBJ | |
143 | class WXDLLIMPEXP_CORE wxMetafileDataObject : public wxDataObjectSimple | |
144 | { | |
145 | public: | |
146 | // ctors | |
147 | wxMetafileDataObject() | |
148 | : wxDataObjectSimple(wxDF_METAFILE) { }; | |
149 | wxMetafileDataObject(const wxMetafile& metafile) | |
150 | : wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { } | |
151 | ||
152 | // virtual functions which you may override if you want to provide data on | |
153 | // demand only - otherwise, the trivial default versions will be used | |
154 | virtual void SetMetafile(const wxMetafile& metafile) | |
155 | { m_metafile = metafile; } | |
156 | virtual wxMetafile GetMetafile() const | |
157 | { return m_metafile; } | |
158 | ||
159 | // implement base class pure virtuals | |
160 | virtual size_t GetDataSize() const; | |
161 | virtual bool GetDataHere(void *buf) const; | |
162 | virtual bool SetData(size_t len, const void *buf); | |
163 | ||
164 | virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const | |
165 | { return GetDataSize(); } | |
166 | virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format), | |
167 | void *buf) const | |
168 | { return GetDataHere(buf); } | |
169 | virtual bool SetData(const wxDataFormat& WXUNUSED(format), | |
170 | size_t len, const void *buf) | |
171 | { return SetData(len, buf); } | |
172 | protected: | |
173 | wxMetafile m_metafile; | |
174 | }; | |
175 | #endif | |
176 | ||
177 | #endif | |
178 | // _WX_METAFIILE_H_ |