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added wxAnimationCtrl (patch 1570325)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41819 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2006-10-09 17:51:07 +00:00
parent be6520af4e
commit 72045d5768
49 changed files with 3657 additions and 504 deletions
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151
src/common/imagbmp.cpp
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@@ -32,6 +32,7 @@
#include "wx/filefn.h"
#include "wx/wfstream.h"
#include "wx/quantize.h"
#include "wx/anidecod.h"
// For memcpy
#include <string.h>
@@ -1324,160 +1325,28 @@ IMPLEMENT_DYNAMIC_CLASS(wxANIHandler, wxCURHandler)
#if wxUSE_STREAMS
bool wxANIHandler::LoadFile(wxImage *image, wxInputStream& stream,
bool verbose, int index)
bool WXUNUSED(verbose), int index)
{
wxInt32 FCC1, FCC2;
wxUint32 datalen;
wxInt32 riff32;
memcpy( &riff32, "RIFF", 4 );
wxInt32 list32;
memcpy( &list32, "LIST", 4 );
wxInt32 ico32;
memcpy( &ico32, "icon", 4 );
int iIcon = 0;
stream.SeekI(0);
stream.Read(&FCC1, 4);
if ( FCC1 != riff32 )
wxANIDecoder decoder;
if (!decoder.Load(stream))
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) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) 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;
return decoder.ConvertToImage(index != -1 ? (size_t)index : 0, image);
}
bool wxANIHandler::DoCanRead(wxInputStream& stream)
{
wxInt32 FCC1, FCC2;
wxUint32 datalen ;
wxInt32 riff32;
memcpy( &riff32, "RIFF", 4 );
wxInt32 list32;
memcpy( &list32, "LIST", 4 );
wxInt32 ico32;
memcpy( &ico32, "icon", 4 );
wxInt32 anih32;
memcpy( &anih32, "anih", 4 );
stream.SeekI(0);
if ( !stream.Read(&FCC1, 4) )
return false;
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) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) 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:
if ( !stream.Read(&FCC1, 4) )
{
// reading failed -- either EOF or IO error, bail out anyhow
return false;
}
}
return false;
wxANIDecoder decod;
return decod.CanRead(stream);
}
int wxANIHandler::GetImageCount(wxInputStream& stream)
{
wxInt32 FCC1, FCC2;
wxUint32 datalen ;
wxInt32 riff32;
memcpy( &riff32, "RIFF", 4 );
wxInt32 list32;
memcpy( &list32, "LIST", 4 );
wxInt32 ico32;
memcpy( &ico32, "icon", 4 );
wxInt32 anih32;
memcpy( &anih32, "anih", 4 );
stream.SeekI(0);
stream.Read(&FCC1, 4);
if ( FCC1 != riff32 )
wxANIDecoder decoder;
if (!decoder.Load(stream))
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) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) 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;
return decoder.GetFrameCount();
}
#endif // wxUSE_STREAMS