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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 | |
65571936 | 11 | // Licence: wxWindows licence |
8cf73271 SC |
12 | ///////////////////////////////////////////////////////////////////////////// |
13 | ||
14 | ||
15 | #ifndef _WX_METAFIILE_H_ | |
16 | #define _WX_METAFIILE_H_ | |
17 | ||
8cf73271 SC |
18 | #include "wx/dc.h" |
19 | #include "wx/gdiobj.h" | |
20 | ||
21 | #if wxUSE_DATAOBJ | |
22 | #include "wx/dataobj.h" | |
23 | #endif | |
24 | ||
25 | /* | |
26 | * Metafile and metafile device context classes | |
27 | * | |
28 | */ | |
29 | ||
30 | #define wxMetaFile wxMetafile | |
31 | #define wxMetaFileDC wxMetafileDC | |
32 | ||
b5dbe15d | 33 | class WXDLLIMPEXP_FWD_CORE wxMetafile; |
71cc158e | 34 | class wxMetafileRefData ; |
8cf73271 SC |
35 | |
36 | #define M_METAFILEDATA ((wxMetafileRefData *)m_refData) | |
37 | ||
38 | class WXDLLEXPORT wxMetafile: public wxGDIObject | |
39 | { | |
40 | DECLARE_DYNAMIC_CLASS(wxMetafile) | |
41 | public: | |
8cf73271 | 42 | wxMetafile(const wxString& file = wxEmptyString); |
d3c7fc99 | 43 | virtual ~wxMetafile(void); |
8cf73271 SC |
44 | |
45 | // After this is called, the metafile cannot be used for anything | |
46 | // since it is now owned by the clipboard. | |
47 | virtual bool SetClipboard(int width = 0, int height = 0); | |
48 | ||
49 | virtual bool Play(wxDC *dc); | |
b7cacb43 VZ |
50 | bool Ok() const { return IsOk(); } |
51 | bool IsOk() const ; | |
8cf73271 SC |
52 | |
53 | wxSize GetSize() const; | |
54 | int GetWidth() const { return GetSize().x; } | |
55 | int GetHeight() const { return GetSize().y; } | |
56 | ||
57 | // Implementation | |
71cc158e | 58 | WXHMETAFILE GetHMETAFILE() const ; |
8cf73271 | 59 | void SetHMETAFILE(WXHMETAFILE mf) ; |
11556386 | 60 | #ifndef __LP64__ |
ebf2a1ec SC |
61 | // Since the native metafile format is PDF for Quartz |
62 | // we need a call that allows setting PICT content for | |
63 | // backwards compatibility | |
64 | void SetPICT(void* pictHandle) ; | |
11556386 | 65 | #endif |
8cf73271 SC |
66 | }; |
67 | ||
68 | class WXDLLEXPORT wxMetafileDC: public wxDC | |
69 | { | |
70 | DECLARE_DYNAMIC_CLASS(wxMetafileDC) | |
71 | ||
72 | public: | |
73 | // the ctor parameters specify the filename (empty for memory metafiles), | |
74 | // the metafile picture size and the optional description/comment | |
75 | wxMetafileDC(const wxString& filename = wxEmptyString, | |
76 | int width = 0, int height = 0, | |
77 | const wxString& description = wxEmptyString); | |
78 | ||
d3c7fc99 | 79 | virtual ~wxMetafileDC(void); |
8cf73271 SC |
80 | |
81 | // Should be called at end of drawing | |
82 | virtual wxMetafile *Close(void); | |
8cf73271 SC |
83 | |
84 | // Implementation | |
85 | inline wxMetafile *GetMetaFile(void) const { return m_metaFile; } | |
86 | inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; } | |
87 | ||
88 | protected: | |
6f02a879 VZ |
89 | virtual void DoGetSize(int *width, int *height) const; |
90 | ||
8cf73271 SC |
91 | wxMetafile* m_metaFile; |
92 | }; | |
93 | ||
94 | /* | |
95 | * Pass filename of existing non-placeable metafile, and bounding box. | |
96 | * Adds a placeable metafile header, sets the mapping mode to anisotropic, | |
97 | * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode. | |
98 | * | |
99 | */ | |
100 | ||
101 | // No origin or extent | |
102 | #define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable | |
103 | bool WXDLLEXPORT wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0); | |
104 | ||
105 | // Optional origin and extent | |
106 | bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE); | |
107 | ||
108 | // ---------------------------------------------------------------------------- | |
109 | // wxMetafileDataObject is a specialization of wxDataObject for metafile data | |
110 | // ---------------------------------------------------------------------------- | |
111 | ||
112 | #if wxUSE_DATAOBJ | |
113 | class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple | |
114 | { | |
115 | public: | |
116 | // ctors | |
117 | wxMetafileDataObject() | |
118 | : wxDataObjectSimple(wxDF_METAFILE) { }; | |
119 | wxMetafileDataObject(const wxMetafile& metafile) | |
120 | : wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { } | |
121 | ||
122 | // virtual functions which you may override if you want to provide data on | |
123 | // demand only - otherwise, the trivial default versions will be used | |
124 | virtual void SetMetafile(const wxMetafile& metafile) | |
125 | { m_metafile = metafile; } | |
126 | virtual wxMetafile GetMetafile() const | |
127 | { return m_metafile; } | |
128 | ||
129 | // implement base class pure virtuals | |
130 | virtual size_t GetDataSize() const; | |
131 | virtual bool GetDataHere(void *buf) const; | |
132 | virtual bool SetData(size_t len, const void *buf); | |
133 | ||
134 | virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const | |
135 | { return GetDataSize(); } | |
136 | virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format), | |
137 | void *buf) const | |
138 | { return GetDataHere(buf); } | |
139 | virtual bool SetData(const wxDataFormat& WXUNUSED(format), | |
140 | size_t len, const void *buf) | |
141 | { return SetData(len, buf); } | |
142 | protected: | |
143 | wxMetafile m_metafile; | |
144 | }; | |
145 | #endif | |
146 | ||
8cf73271 SC |
147 | #endif |
148 | // _WX_METAFIILE_H_ |