00001 /** \file
00002 * \brief C++ Wrapper for File Access
00003 *
00004 * See Copyright Notice in im_lib.h
00005 * $Id: im_plus.h,v 1.2 2006/11/21 11:56:16 scuri Exp $
00006 */
00007
00008 #ifndef __IM_PLUS_H
00009 #define __IM_PLUS_H
00010
00011
00012 /** \brief C++ Wrapper for the Image File Structure
00013 *
00014 * \par
00015 * Usage is just like the C API. Open and New are replaced by equivalent constructors. \n
00016 * Close is replaced by the destructor. Error checking is done by the Error() member. \n
00017 * Open and New errors are cheked using the Failed() member.
00018 * \ingroup file */
00019 class imImageFile
00020 {
00021 imFile* ifile;
00022 int error;
00023
00024 imImageFile() {};
00025
00026 public:
00027
00028 imImageFile(const char* file_name)
00029 { this->ifile = imFileOpen(file_name, &this->error); }
00030
00031 imImageFile(const char* file_name, const char* format)
00032 { this->ifile = imFileNew(file_name, format, &this->error); }
00033
00034 ~imImageFile()
00035 { if (this->ifile) imFileClose(this->ifile); }
00036
00037 int Failed()
00038 { return this->ifile == 0; }
00039
00040 int Error()
00041 { return this->error; }
00042
00043 void SetAttribute(const char* attrib, int data_type, int count, const void* data)
00044 { imFileSetAttribute(this->ifile, attrib, data_type, count, data); }
00045
00046 const void* GetAttribute(const char* attrib, int *data_type, int *count)
00047 { return imFileGetAttribute(this->ifile, attrib, data_type, count); }
00048
00049 void GetInfo(char* format, char* compression, int *image_count)
00050 { imFileGetInfo(this->ifile, format, compression, image_count); }
00051
00052 void ReadImageInfo(int index, int *width, int *height, int *color_mode, int *data_type)
00053 { this->error = imFileReadImageInfo(this->ifile, index, width, height, color_mode, data_type); }
00054
00055 void GetPalette(long* palette, int *palette_count)
00056 { imFileGetPalette(this->ifile, palette, palette_count); }
00057
00058 void ReadImageData(void* data, int convert2bitmap, int color_mode_flags)
00059 { this->error = imFileReadImageData(this->ifile, data, convert2bitmap, color_mode_flags); }
00060
00061 void SetInfo(const char* compression)
00062 { imFileSetInfo(this->ifile, compression); }
00063
00064 void SetPalette(long* palette, int palette_count)
00065 { imFileSetPalette(this->ifile, palette, palette_count); }
00066
00067 void WriteImageInfo(int width, int height, int color_mode, int data_type)
00068 { this->error = imFileWriteImageInfo(this->ifile, width, height, color_mode, data_type); }
00069
00070 void WriteImageData(void* data)
00071 { this->error = imFileWriteImageData(this->ifile, data); }
00072 };
00073
00074 #endif