8f49300284
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4979 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: imaggif.cpp
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// Purpose: wxGIFHandler
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// Author: Vaclav Slavik & Guillermo Rodriguez Garcia
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vaclav Slavik & Guillermo Rodriguez Garcia
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "imaggif.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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# pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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# include "wx/defs.h"
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#endif
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#if wxUSE_GIF
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#include "wx/imaggif.h"
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#include "wx/gifdecod.h"
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#include "wx/wfstream.h"
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#include "wx/log.h"
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#include "wx/intl.h"
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IMPLEMENT_DYNAMIC_CLASS(wxGIFHandler,wxImageHandler)
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//-----------------------------------------------------------------------------
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// wxGIFHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_STREAMS
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bool wxGIFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose, int WXUNUSED(index) )
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{
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wxGIFDecoder *decod;
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int error;
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bool ok;
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decod = new wxGIFDecoder(&stream, TRUE);
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if ((error = decod->ReadGIF()) != wxGIF_OK)
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{
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if (verbose)
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{
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switch (error)
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{
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case wxGIF_INVFORMAT: wxLogError(_("wxGIFHandler: error in GIF image format")); break;
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case wxGIF_MEMERR: wxLogError(_("wxGIFHandler: couldn't allocate enough memory")); break;
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default: wxLogError(_("wxGIFHandler: unknown error !!!"));
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}
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}
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delete decod;
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return FALSE;
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}
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image->Destroy();
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ok = decod->ConvertToImage(image);
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delete decod;
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return ok;
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}
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bool wxGIFHandler::SaveFile( wxImage * WXUNUSED(image),
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wxOutputStream& WXUNUSED(stream), bool verbose )
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{
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if (verbose)
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wxLogDebug(wxT("wxGIFHandler is read-only!!"));
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return FALSE;
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}
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bool wxGIFHandler::DoCanRead( wxInputStream& stream )
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{
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wxGIFDecoder *decod;
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bool ok;
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decod = new wxGIFDecoder(&stream);
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ok = decod->CanRead();
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delete decod;
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return ok;
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}
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#endif // wxUSE_STREAMS
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#endif // wxUSE_GIF
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