| 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: Julian Smart |
| 7 | // Modified by: |
| 8 | // Created: 17/09/98 |
| 9 | // RCS-ID: $Id$ |
| 10 | // Copyright: (c) Julian Smart |
| 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" |
| 23 | |
| 24 | /* |
| 25 | * Metafile and metafile device context classes - work in Windows 3.1 only |
| 26 | * |
| 27 | */ |
| 28 | |
| 29 | class WXDLLEXPORT wxDC; |
| 30 | class WXDLLEXPORT wxMetaFile: public wxObject |
| 31 | { |
| 32 | DECLARE_DYNAMIC_CLASS(wxMetaFile) |
| 33 | public: |
| 34 | wxMetaFile(const wxString& file = ""); |
| 35 | ~wxMetaFile(); |
| 36 | |
| 37 | // After this is called, the metafile cannot be used for anything |
| 38 | // since it is now owned by the clipboard. |
| 39 | virtual bool SetClipboard(int width = 0, int height = 0); |
| 40 | |
| 41 | virtual bool Play(wxDC *dc); |
| 42 | // TODO |
| 43 | inline bool Ok() { return FALSE; }; |
| 44 | |
| 45 | /* TODO: Implementation |
| 46 | inline WXHANDLE GetHMETAFILE() { return m_metaFile; } |
| 47 | inline void SetHMETAFILE(WXHANDLE mf) { m_metaFile = mf; } |
| 48 | |
| 49 | protected: |
| 50 | WXHANDLE m_metaFile; |
| 51 | */ |
| 52 | }; |
| 53 | |
| 54 | class WXDLLEXPORT wxMetaFileDC: public wxDC |
| 55 | { |
| 56 | DECLARE_DYNAMIC_CLASS(wxMetaFileDC) |
| 57 | |
| 58 | public: |
| 59 | // Don't supply origin and extent |
| 60 | // Supply them to wxMakeMetaFilePlaceable instead. |
| 61 | wxMetaFileDC(const wxString& file = ""); |
| 62 | |
| 63 | // Supply origin and extent (recommended). |
| 64 | // Then don't need to supply them to wxMakeMetaFilePlaceable. |
| 65 | wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg); |
| 66 | |
| 67 | ~wxMetaFileDC(); |
| 68 | |
| 69 | // Should be called at end of drawing |
| 70 | virtual wxMetaFile *Close(); |
| 71 | virtual void SetMapMode(int mode); |
| 72 | virtual void GetTextExtent(const wxString& string, float *x, float *y, |
| 73 | float *descent = NULL, float *externalLeading = NULL, |
| 74 | wxFont *theFont = NULL, bool use16bit = FALSE); |
| 75 | |
| 76 | // Implementation |
| 77 | inline wxMetaFile *GetMetaFile() { return m_metaFile; } |
| 78 | inline void SetMetaFile(wxMetaFile *mf) { m_metaFile = mf; } |
| 79 | inline int GetWindowsMappingMode() { return m_windowsMappingMode; } |
| 80 | inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; } |
| 81 | |
| 82 | protected: |
| 83 | int m_windowsMappingMode; |
| 84 | wxMetaFile *m_metaFile; |
| 85 | }; |
| 86 | |
| 87 | /* |
| 88 | * Pass filename of existing non-placeable metafile, and bounding box. |
| 89 | * Adds a placeable metafile header, sets the mapping mode to anisotropic, |
| 90 | * and sets the window origin and extent to mimic the wxMM_TEXT mapping mode. |
| 91 | * |
| 92 | */ |
| 93 | |
| 94 | // No origin or extent |
| 95 | bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, float scale = 1.0); |
| 96 | |
| 97 | // Optional origin and extent |
| 98 | bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale = 1.0, bool useOriginAndExtent = TRUE); |
| 99 | |
| 100 | #endif |
| 101 | // _WX_METAFIILE_H_ |