+//-----------------------------------------------------------------------------
+// wxANIHandler
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxANIHandler, wxCURHandler)
+
+bool wxANIHandler::LoadFile(wxImage *image, wxInputStream& stream,
+ bool verbose, int index)
+{
+ wxInt32 FCC1, FCC2;
+ wxUint32 datalen;
+ static const char *rifftxt = "RIFF";
+ static const char *listtxt = "LIST";
+ static const char *icotxt = "icon";
+
+ wxInt32 *riff32 = (wxInt32 *) rifftxt;
+ wxInt32 *list32 = (wxInt32 *) listtxt;
+ wxInt32 *ico32 = (wxInt32 *) icotxt;
+
+ int iIcon = 0;
+
+ stream.SeekI(0);
+ stream.Read(&FCC1, 4);
+ if ( FCC1 != *riff32 )
+ return FALSE;
+
+ // we have a riff file:
+ while (stream.IsOk())
+ {
+ // we always have a data size
+ stream.Read(&datalen, 4);
+ datalen = wxINT32_SWAP_ON_BE(datalen) ;
+ //now either data or a FCC
+ if ( (FCC1 == *riff32) || (FCC1 == *list32) )
+ {
+ stream.Read(&FCC2, 4);
+ }
+ else
+ {
+ if (FCC1 == *ico32 && iIcon >= index)
+ {
+ return DoLoadFile(image, stream, verbose, -1);
+ }
+ else
+ {
+ stream.SeekI(stream.TellI() + datalen);
+ if ( FCC1 == *ico32 )
+ iIcon ++;
+ }
+ }
+
+ // try to read next data chunk:
+ stream.Read(&FCC1, 4);
+ }
+ return FALSE;
+}
+
+bool wxANIHandler::DoCanRead(wxInputStream& stream)
+{
+ wxInt32 FCC1, FCC2;
+ wxUint32 datalen ;
+ static const char *rifftxt = "RIFF";
+ static const char *listtxt = "LIST";
+ static const char *anihtxt = "anih";
+
+ wxInt32 *riff32 = (wxInt32 *) rifftxt;
+ wxInt32 *list32 = (wxInt32 *) listtxt;
+ wxInt32 *anih32 = (wxInt32 *) anihtxt;
+
+ stream.SeekI(0);
+ stream.Read(&FCC1, 4);
+ if ( FCC1 != *riff32 )
+ return FALSE;
+
+ // we have a riff file:
+ while ( stream.IsOk() )
+ {
+ if ( FCC1 == *anih32 )
+ return TRUE;
+ // we always have a data size:
+ stream.Read(&datalen, 4);
+ datalen = wxINT32_SWAP_ON_BE(datalen) ;
+ // now either data or a FCC:
+ if ( (FCC1 == *riff32) || (FCC1 == *list32) )
+ {
+ stream.Read(&FCC2, 4);
+ }
+ else
+ {
+ stream.SeekI(stream.TellI() + datalen);
+ }
+
+ // try to read next data chunk:
+ stream.Read(&FCC1, 4);
+ }
+
+ return FALSE;
+}
+
+int wxANIHandler::GetImageCount(wxInputStream& stream)
+{
+ wxInt32 FCC1, FCC2;
+ wxUint32 datalen ;
+ static const char *rifftxt = "RIFF";
+ static const char *listtxt = "LIST";
+ static const char *anihtxt = "anih";
+
+ wxInt32 *riff32 = (wxInt32 *) rifftxt;
+ wxInt32 *list32 = (wxInt32 *) listtxt;
+ wxInt32 *anih32 = (wxInt32 *) anihtxt;
+
+ stream.SeekI(0);
+ stream.Read(&FCC1, 4);
+ if ( FCC1 != *riff32 )
+ return wxNOT_FOUND;
+
+ // we have a riff file:
+ while ( stream.IsOk() )
+ {
+ // we always have a data size:
+ stream.Read(&datalen, 4);
+ datalen = wxINT32_SWAP_ON_BE(datalen) ;
+ // now either data or a FCC:
+ if ( (FCC1 == *riff32) || (FCC1 == *list32) )
+ {
+ stream.Read(&FCC2, 4);
+ }
+ else
+ {
+ if ( FCC1 == *anih32 )
+ {
+ wxUint32 *pData = new wxUint32[datalen/4];
+ stream.Read(pData, datalen);
+ int nIcons = wxINT32_SWAP_ON_BE(*(pData + 1));
+ delete[] pData;
+ return nIcons;
+ }
+ else
+ stream.SeekI(stream.TellI() + datalen);
+ }
+
+ // try to read next data chunk:
+ stream.Read(&FCC1, 4);
+ }
+
+ return wxNOT_FOUND;
+}
+
+#endif // wxUSE_ICO_CUR
+