src/common/imagiff.cpp

   1 //
   2 // imgiff.cc    - image handler for Amiga IFF images
   3 //        parts of the source taken by xv source code.
   4 //
   5 // (c) Steffen Gutmann, 2002
   6 //
   7 // Creation date: 08.01.2002
   8 // Last modified: 08.01.2002
   9 //
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "imagiff.h"
  13 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19 #  pragma hdrstop
  20 #endif
  21
  22 #ifndef WX_PRECOMP
  23 #  include "wx/defs.h"
  24 #endif
  25
  26 #include "wx/imagiff.h"
  27 #include "wx/iffdecod.h"
  28 #include "wx/wfstream.h"
  29 #include "wx/log.h"
  30 #include "wx/intl.h"
  31
  32 #if wxUSE_IMAGE && wxUSE_IFF
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxIFFHandler, wxImageHandler)
  35
  36 //-----------------------------------------------------------------------------
  37 // wxIFFHandler
  38 //-----------------------------------------------------------------------------
  39
  40 #if wxUSE_STREAMS
  41
  42 bool wxIFFHandler::LoadFile(wxImage *image, wxInputStream& stream,
  43     bool verbose, int WXUNUSED(index))
  44 {
  45     wxIFFDecoder *decod;
  46     int error;
  47     bool ok;
  48
  49     decod = new wxIFFDecoder(&stream);
  50     error = decod->ReadIFF();
  51
  52     if ((error != wxIFF_OK) && (error != wxIFF_TRUNCATED))
  53     {
  54         if (verbose)
  55         {
  56             switch (error)
  57             {
  58                 case wxIFF_INVFORMAT:
  59                     wxLogError(_("IFF: error in IFF image format."));
  60                     break;
  61                 case wxIFF_MEMERR:
  62                     wxLogError(_("IFF: not enough memory."));
  63                     break;
  64                 default:
  65                     wxLogError(_("IFF: unknown error!!!"));
  66                     break;
  67             }
  68         }
  69         delete decod;
  70         return FALSE;
  71     }
  72
  73     if ((error == wxIFF_TRUNCATED) && verbose)
  74     {
  75         wxLogError(_("IFF: data stream seems to be truncated."));
  76         /* go on; image data is OK */
  77     }
  78
  79     ok = decod->ConvertToImage(image);
  80     delete decod;
  81
  82     return ok;
  83 }
  84
  85 bool wxIFFHandler::SaveFile(wxImage * WXUNUSED(image),
  86     wxOutputStream& WXUNUSED(stream), bool verbose)
  87 {
  88     if (verbose)
  89         wxLogDebug(wxT("IFF: the handler is read-only!!"));
  90
  91     return FALSE;
  92 }
  93
  94 bool wxIFFHandler::DoCanRead(wxInputStream& stream)
  95 {
  96     wxIFFDecoder *decod;
  97     bool ok;
  98
  99     decod = new wxIFFDecoder(&stream);
 100     ok = decod->CanRead();
 101     delete decod;
 102
 103     return ok;
 104 }
 105
 106 #endif
 107 #endif
 108