| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/imagbmp.h |
| 3 | // Purpose: wxImage BMP, ICO, CUR and ANI handlers |
| 4 | // Author: Robert Roebling, Chris Elliott |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) Robert Roebling, Chris Elliott |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #ifndef _WX_IMAGBMP_H_ |
| 11 | #define _WX_IMAGBMP_H_ |
| 12 | |
| 13 | #include "wx/image.h" |
| 14 | |
| 15 | // defines for saving the BMP file in different formats, Bits Per Pixel |
| 16 | // USE: wximage.SetOption( wxIMAGE_OPTION_BMP_FORMAT, wxBMP_xBPP ); |
| 17 | #define wxIMAGE_OPTION_BMP_FORMAT wxString(_T("wxBMP_FORMAT")) |
| 18 | |
| 19 | // These two options are filled in upon reading CUR file and can (should) be |
| 20 | // specified when saving a CUR file - they define the hotspot of the cursor: |
| 21 | #define wxIMAGE_OPTION_CUR_HOTSPOT_X wxT("HotSpotX") |
| 22 | #define wxIMAGE_OPTION_CUR_HOTSPOT_Y wxT("HotSpotY") |
| 23 | |
| 24 | |
| 25 | enum |
| 26 | { |
| 27 | wxBMP_24BPP = 24, // default, do not need to set |
| 28 | //wxBMP_16BPP = 16, // wxQuantize can only do 236 colors? |
| 29 | wxBMP_8BPP = 8, // 8bpp, quantized colors |
| 30 | wxBMP_8BPP_GREY = 9, // 8bpp, rgb averaged to greys |
| 31 | wxBMP_8BPP_GRAY = wxBMP_8BPP_GREY, |
| 32 | wxBMP_8BPP_RED = 10, // 8bpp, red used as greyscale |
| 33 | wxBMP_8BPP_PALETTE = 11, // 8bpp, use the wxImage's palette |
| 34 | wxBMP_4BPP = 4, // 4bpp, quantized colors |
| 35 | wxBMP_1BPP = 1, // 1bpp, quantized "colors" |
| 36 | wxBMP_1BPP_BW = 2 // 1bpp, black & white from red |
| 37 | }; |
| 38 | |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | // wxBMPHandler |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | |
| 43 | class WXDLLEXPORT wxBMPHandler : public wxImageHandler |
| 44 | { |
| 45 | public: |
| 46 | wxBMPHandler() |
| 47 | { |
| 48 | m_name = _T("Windows bitmap file"); |
| 49 | m_extension = _T("bmp"); |
| 50 | m_type = wxBITMAP_TYPE_BMP; |
| 51 | m_mime = _T("image/x-bmp"); |
| 52 | } |
| 53 | |
| 54 | #if wxUSE_STREAMS |
| 55 | virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true ); |
| 56 | virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 ); |
| 57 | |
| 58 | protected: |
| 59 | virtual bool DoCanRead( wxInputStream& stream ); |
| 60 | bool SaveDib(wxImage *image, wxOutputStream& stream, bool verbose, |
| 61 | bool IsBmp, bool IsMask); |
| 62 | bool DoLoadDib(wxImage *image, int width, int height, int bpp, int ncolors, |
| 63 | int comp, wxFileOffset bmpOffset, wxInputStream& stream, |
| 64 | bool verbose, bool IsBmp, bool hasPalette); |
| 65 | bool LoadDib(wxImage *image, wxInputStream& stream, bool verbose, bool IsBmp); |
| 66 | #endif // wxUSE_STREAMS |
| 67 | |
| 68 | private: |
| 69 | DECLARE_DYNAMIC_CLASS(wxBMPHandler) |
| 70 | }; |
| 71 | |
| 72 | #if wxUSE_ICO_CUR |
| 73 | // ---------------------------------------------------------------------------- |
| 74 | // wxICOHandler |
| 75 | // ---------------------------------------------------------------------------- |
| 76 | |
| 77 | class WXDLLEXPORT wxICOHandler : public wxBMPHandler |
| 78 | { |
| 79 | public: |
| 80 | wxICOHandler() |
| 81 | { |
| 82 | m_name = _T("Windows icon file"); |
| 83 | m_extension = _T("ico"); |
| 84 | m_type = wxBITMAP_TYPE_ICO; |
| 85 | m_mime = _T("image/x-ico"); |
| 86 | } |
| 87 | |
| 88 | #if wxUSE_STREAMS |
| 89 | virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true ); |
| 90 | virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 ); |
| 91 | virtual bool DoLoadFile( wxImage *image, wxInputStream& stream, bool verbose, int index ); |
| 92 | virtual int GetImageCount( wxInputStream& stream ); |
| 93 | protected: |
| 94 | virtual bool DoCanRead( wxInputStream& stream ); |
| 95 | #endif // wxUSE_STREAMS |
| 96 | |
| 97 | private: |
| 98 | DECLARE_DYNAMIC_CLASS(wxICOHandler) |
| 99 | }; |
| 100 | |
| 101 | |
| 102 | // ---------------------------------------------------------------------------- |
| 103 | // wxCURHandler |
| 104 | // ---------------------------------------------------------------------------- |
| 105 | |
| 106 | class WXDLLEXPORT wxCURHandler : public wxICOHandler |
| 107 | { |
| 108 | public: |
| 109 | wxCURHandler() |
| 110 | { |
| 111 | m_name = _T("Windows cursor file"); |
| 112 | m_extension = _T("cur"); |
| 113 | m_type = wxBITMAP_TYPE_CUR; |
| 114 | m_mime = _T("image/x-cur"); |
| 115 | } |
| 116 | |
| 117 | // VS: This handler's meat is implemented inside wxICOHandler (the two |
| 118 | // formats are almost identical), but we hide this fact at |
| 119 | // the API level, since it is a mere implementation detail. |
| 120 | |
| 121 | protected: |
| 122 | #if wxUSE_STREAMS |
| 123 | virtual bool DoCanRead( wxInputStream& stream ); |
| 124 | #endif // wxUSE_STREAMS |
| 125 | |
| 126 | private: |
| 127 | DECLARE_DYNAMIC_CLASS(wxCURHandler) |
| 128 | }; |
| 129 | // ---------------------------------------------------------------------------- |
| 130 | // wxANIHandler |
| 131 | // ---------------------------------------------------------------------------- |
| 132 | |
| 133 | class WXDLLEXPORT wxANIHandler : public wxCURHandler |
| 134 | { |
| 135 | public: |
| 136 | wxANIHandler() |
| 137 | { |
| 138 | m_name = _T("Windows animated cursor file"); |
| 139 | m_extension = _T("ani"); |
| 140 | m_type = wxBITMAP_TYPE_ANI; |
| 141 | m_mime = _T("image/x-ani"); |
| 142 | } |
| 143 | |
| 144 | |
| 145 | #if wxUSE_STREAMS |
| 146 | virtual bool SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose=true) ){return false ;} |
| 147 | virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 ); |
| 148 | virtual int GetImageCount( wxInputStream& stream ); |
| 149 | protected: |
| 150 | virtual bool DoCanRead( wxInputStream& stream ); |
| 151 | #endif // wxUSE_STREAMS |
| 152 | |
| 153 | private: |
| 154 | DECLARE_DYNAMIC_CLASS(wxANIHandler) |
| 155 | }; |
| 156 | |
| 157 | #endif // wxUSE_ICO_CUR |
| 158 | #endif // _WX_IMAGBMP_H_ |