]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/msw/metafile.h | |
3 | // Purpose: wxMetaFile, wxMetaFileDC and wxMetaFileDataObject classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: VZ 07.01.00: implemented wxMetaFileDataObject | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_METAFIILE_H_ | |
13 | #define _WX_METAFIILE_H_ | |
14 | ||
15 | #include "wx/dc.h" | |
16 | #include "wx/gdiobj.h" | |
17 | ||
18 | #if wxUSE_DRAG_AND_DROP | |
19 | #include "wx/dataobj.h" | |
20 | #endif | |
21 | ||
22 | // ---------------------------------------------------------------------------- | |
23 | // Metafile and metafile device context classes | |
24 | // ---------------------------------------------------------------------------- | |
25 | ||
26 | class WXDLLEXPORT wxMetafile; | |
27 | ||
28 | class WXDLLEXPORT wxMetafileRefData: public wxGDIRefData | |
29 | { | |
30 | friend class WXDLLEXPORT wxMetafile; | |
31 | public: | |
32 | wxMetafileRefData(); | |
33 | virtual ~wxMetafileRefData(); | |
34 | ||
35 | public: | |
36 | WXHANDLE m_metafile; | |
37 | int m_windowsMappingMode; | |
38 | int m_width, m_height; | |
39 | }; | |
40 | ||
41 | #define M_METAFILEDATA ((wxMetafileRefData *)m_refData) | |
42 | ||
43 | class WXDLLEXPORT wxMetafile: public wxGDIObject | |
44 | { | |
45 | public: | |
46 | wxMetafile(const wxString& file = wxEmptyString); | |
47 | virtual ~wxMetafile(); | |
48 | ||
49 | // After this is called, the metafile cannot be used for anything | |
50 | // since it is now owned by the clipboard. | |
51 | virtual bool SetClipboard(int width = 0, int height = 0); | |
52 | ||
53 | virtual bool Play(wxDC *dc); | |
54 | bool Ok() const { return IsOk(); } | |
55 | bool IsOk() const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); }; | |
56 | ||
57 | // set/get the size of metafile for clipboard operations | |
58 | wxSize GetSize() const { return wxSize(GetWidth(), GetHeight()); } | |
59 | int GetWidth() const { return M_METAFILEDATA->m_width; } | |
60 | int GetHeight() const { return M_METAFILEDATA->m_height; } | |
61 | ||
62 | void SetWidth(int width) { M_METAFILEDATA->m_width = width; } | |
63 | void SetHeight(int height) { M_METAFILEDATA->m_height = height; } | |
64 | ||
65 | // Implementation | |
66 | WXHANDLE GetHMETAFILE() const { return M_METAFILEDATA->m_metafile; } | |
67 | void SetHMETAFILE(WXHANDLE mf) ; | |
68 | int GetWindowsMappingMode() const { return M_METAFILEDATA->m_windowsMappingMode; } | |
69 | void SetWindowsMappingMode(int mm); | |
70 | ||
71 | private: | |
72 | DECLARE_DYNAMIC_CLASS(wxMetafile) | |
73 | }; | |
74 | ||
75 | class WXDLLEXPORT wxMetafileDC: public wxDC | |
76 | { | |
77 | public: | |
78 | // Don't supply origin and extent | |
79 | // Supply them to wxMakeMetaFilePlaceable instead. | |
80 | wxMetafileDC(const wxString& file = wxEmptyString); | |
81 | ||
82 | // Supply origin and extent (recommended). | |
83 | // Then don't need to supply them to wxMakeMetaFilePlaceable. | |
84 | wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg); | |
85 | ||
86 | virtual ~wxMetafileDC(); | |
87 | ||
88 | // Should be called at end of drawing | |
89 | virtual wxMetafile *Close(); | |
90 | virtual void SetMapMode(int mode); | |
91 | virtual void GetTextExtent(const wxString& string, long *x, long *y, | |
92 | long *descent = NULL, long *externalLeading = NULL, | |
93 | wxFont *theFont = NULL, bool use16bit = false) const; | |
94 | ||
95 | // Implementation | |
96 | wxMetafile *GetMetaFile() const { return m_metaFile; } | |
97 | void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; } | |
98 | int GetWindowsMappingMode() const { return m_windowsMappingMode; } | |
99 | void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; } | |
100 | ||
101 | protected: | |
102 | virtual void DoGetSize(int *width, int *height) const; | |
103 | ||
104 | int m_windowsMappingMode; | |
105 | wxMetafile* m_metaFile; | |
106 | ||
107 | private: | |
108 | DECLARE_DYNAMIC_CLASS(wxMetafileDC) | |
109 | }; | |
110 | ||
111 | /* | |
112 | * Pass filename of existing non-placeable metafile, and bounding box. | |
113 | * Adds a placeable metafile header, sets the mapping mode to anisotropic, | |
114 | * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode. | |
115 | * | |
116 | */ | |
117 | ||
118 | // No origin or extent | |
119 | bool WXDLLEXPORT wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0); | |
120 | ||
121 | // Optional origin and extent | |
122 | bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = true); | |
123 | ||
124 | // ---------------------------------------------------------------------------- | |
125 | // wxMetafileDataObject is a specialization of wxDataObject for metafile data | |
126 | // ---------------------------------------------------------------------------- | |
127 | ||
128 | #if wxUSE_DRAG_AND_DROP | |
129 | ||
130 | class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple | |
131 | { | |
132 | public: | |
133 | // ctors | |
134 | wxMetafileDataObject() : wxDataObjectSimple(wxDF_METAFILE) | |
135 | { } | |
136 | wxMetafileDataObject(const wxMetafile& metafile) | |
137 | : wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { } | |
138 | ||
139 | // virtual functions which you may override if you want to provide data on | |
140 | // demand only - otherwise, the trivial default versions will be used | |
141 | virtual void SetMetafile(const wxMetafile& metafile) | |
142 | { m_metafile = metafile; } | |
143 | virtual wxMetafile GetMetafile() const | |
144 | { return m_metafile; } | |
145 | ||
146 | // implement base class pure virtuals | |
147 | virtual size_t GetDataSize() const; | |
148 | virtual bool GetDataHere(void *buf) const; | |
149 | virtual bool SetData(size_t len, const void *buf); | |
150 | ||
151 | protected: | |
152 | wxMetafile m_metafile; | |
153 | }; | |
154 | ||
155 | #endif // wxUSE_DRAG_AND_DROP | |
156 | ||
157 | #endif | |
158 | // _WX_METAFIILE_H_ | |
159 |