gifvsrc.h
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:5k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _GIFVSRC_H_
- #define _GIFVSRC_H_
- class CGIFViewSource : public CHXBaseCountingObject,
- public IHXFileResponse,
- public IHXFileViewSource,
- public IHXFileStatResponse
- {
- private:
- enum ViewState {
- kStateConstructed,
- kStateInitFilePending,
- kStateReady,
- kStateStatPending,
- kStateReadPending
- };
-
- ViewState m_state;
- // viewsource stuff
- IHXFileViewSourceResponse* m_pViewSourceResponse;
- SOURCE_TYPE m_type;
- IHXValues* m_pViewSourceOptions;
- UINT32 m_ulFileSize;
- UINT32 m_ulModTime;
- BOOL m_bIsGIF89a;
- // FileFormat...
- IHXFileObject* m_pFileObject;
- IHXBuffer* m_pFileBuffer;
-
- // IUnknown Stuff
- IUnknown* m_pContext;
- LONG32 m_lRefCount;
- IUnknown* m_pContainer;
- IHXCommonClassFactory* m_pCommonClassFactory;
- ~CGIFViewSource();
- PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME
- STDMETHOD(CreateInfoBuffer)(THIS_ REF(IHXBuffer*) pBuffer);
- STDMETHOD(ParseGif)(THIS_ REF(CGIFCodec::LogicalScreenDescriptor) m_pLSD);
- public:
- CGIFViewSource(IUnknown* pContext, IUnknown* pContainer);
- // *** IUnknown methods ***
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /************************************************************************
- * Method:
- * IHXFileViewSource::InitViewSource
- * Purpose:
- * Called by the user to init before a viewsource.
- */
- STDMETHOD(InitViewSource) (THIS_
- IHXFileObject* pFileObject,
- IHXFileViewSourceResponse* pResp,
- SOURCE_TYPE sourceType,
- IHXValues* pOptions);
- /************************************************************************
- * Method:
- * IHXFileViewSource::GetHTMLSource
- * Purpose:
- * Called to get source html source. Return the source
- * through m_pViewSourceResoponse
- */
- STDMETHOD(GetSource)(THIS);
- /************************************************************************
- * Method:
- * IHXFileViewSource::Close()
- * Purpose:
- * Called to shut things down
- * Shared with IHXFileFormatObject
- */
- STDMETHOD(Close) (THIS);
- /************************************************************************
- * IHXFileResponse
- */
- STDMETHOD(InitDone) (THIS_ HX_RESULT status);
- STDMETHOD(SeekDone) (THIS_ HX_RESULT status);
- STDMETHOD(ReadDone) (THIS_ HX_RESULT status, IHXBuffer *pBuffer);
- STDMETHOD(WriteDone) (THIS_ HX_RESULT status);
- STDMETHOD(CloseDone) (THIS_ HX_RESULT status);
- /************************************************************************
- * IHXFileStatResponse
- */
- STDMETHOD(StatDone) (THIS_
- HX_RESULT status,
- UINT32 ulSize,
- UINT32 ulCreationTime,
- UINT32 ulAccessTime,
- UINT32 ulModificationTime,
- UINT32 ulMode);
- };
- #endif // _GIFVSRC_H_