xref: /trunk/main/shell/source/win32/shlxthandler/ooofilt/ooofilt.hxx (revision fff73a02)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



#include "internal/types.hxx"

//+-------------------------------------------------------------------------
//
//  Contents:   OpenOffice filter declarations
//
//  Platform:   Windows 2000, Windows XP
//
//--------------------------------------------------------------------------

#pragma once

//+-------------------------------------------------------------------------
//
//  forward declaration
//
//--------------------------------------------------------------------------
class CContentReader;
class CMetaInfoReader;
class CFullPropSpec;

//+-------------------------------------------------------------------------
//
//  Global definitions
//
//--------------------------------------------------------------------------

long g_lInstances = 0;                        // Global count of COooFilter and COooFilterCF instances
GUID const guidStorage = PSGUID_STORAGE;      // GUID for storage property set

//C-------------------------------------------------------------------------
//
//  Class:      COooFilter
//
//  Purpose:    Implements interfaces of OpenOffice filter
//
//--------------------------------------------------------------------------

// OooFilter Class ID
// {7BC0E710-5703-45be-A29D-5D46D8B39262}
GUID const CLSID_COooFilter =
{
	0x7bc0e710,
	0x5703,
	0x45be,
	{ 0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62 }
};

// OpenOffice Persistent Handler Class ID
// {7BC0E713-5703-45be-A29D-5D46D8B39262}
const CLSID CLSID_PERSISTENT_HANDLER =
{0x7bc0e713, 0x5703, 0x45be, {0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62}};

// OpenOffice Persistent Handler Addin Registered Class ID
// {89BCB740-6119-101A-BCB7-00DD010655AF}
const CLSID CLSID_PERSISTENT_HANDLER_ADDIN =
{0x89bcb740, 0x6119, 0x101a, {0xbc, 0xb7, 0x00, 0xdd, 0x01, 0x06, 0x55, 0xaf}};

// OpenOffice Filter Handler Class ID
// {7BC0E710-5703-45be-A29D-5D46D8B39262}
const CLSID CLSID_FILTER_HANDLER =
{0x7bc0e710, 0x5703, 0x45be, {0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62}};

enum FilterState
{
	FilteringContent,                           // Filtering the content property
	FilteringProperty                           // Filtering the pseudo property
};
class COooFilter : public IFilter, public IPersistFile, public IPersistStream
{
public:
	// From IUnknown
	virtual  SCODE STDMETHODCALLTYPE  QueryInterface(
		REFIID riid,
		void  ** ppvObject);
	virtual  ULONG STDMETHODCALLTYPE  AddRef();
	virtual  ULONG STDMETHODCALLTYPE  Release();

	// From IFilter
	virtual  SCODE STDMETHODCALLTYPE  Init(
		ULONG grfFlags,
		ULONG cAttributes,
		FULLPROPSPEC const * aAttributes,
		ULONG * pFlags);
	virtual  SCODE STDMETHODCALLTYPE  GetChunk(
		STAT_CHUNK * pStat);
	virtual  SCODE STDMETHODCALLTYPE  GetText(
		ULONG * pcwcBuffer,
		WCHAR * awcBuffer);

	virtual  SCODE STDMETHODCALLTYPE  GetValue(
		PROPVARIANT ** ppPropValue);

	virtual  SCODE STDMETHODCALLTYPE  BindRegion(
		FILTERREGION origPos,
		REFIID riid,
		void ** ppunk);

	// From IPersistFile
	virtual  SCODE STDMETHODCALLTYPE  GetClassID(
		CLSID * pClassID);
	virtual  SCODE STDMETHODCALLTYPE  IsDirty();
	virtual  SCODE STDMETHODCALLTYPE  Load(
		LPCWSTR pszFileName,
		DWORD dwMode);
	virtual  SCODE STDMETHODCALLTYPE  Save(
		LPCWSTR pszFileName,
		BOOL fRemember);

	virtual  SCODE STDMETHODCALLTYPE  SaveCompleted(
		LPCWSTR pszFileName);

	virtual  SCODE STDMETHODCALLTYPE  GetCurFile(
		LPWSTR  * ppszFileName);

	// From IPersistStream
	virtual SCODE STDMETHODCALLTYPE  Load(
		IStream *pStm);

	virtual SCODE STDMETHODCALLTYPE Save(
		IStream *pStm,
		BOOL fClearDirty);

	virtual SCODE STDMETHODCALLTYPE  GetSizeMax(
		ULARGE_INTEGER *pcbSize);


private:
	friend class COooFilterCF;

	COooFilter();
	virtual ~COooFilter();

	long                      m_lRefs;                  // Reference count
	CContentReader *          m_pContentReader;         // A content reader that retrieves document content.
	CMetaInfoReader *         m_pMetaInfoReader;        // A metainfo reader that retrieves document metainfo.
	FilterState               m_eState;                 // State of filtering
	::std::wstring            m_pwszFileName;           // Name of input file to filter
	ULONG                     m_ulUnicodeBufferLen;     // UNICODE Characters read from file to chunk buffer
	ULONG                     m_ulUnicodeCharsRead;     // UNICODE Characters read from chunk buffer
	ULONG                     m_ulPropertyNum;          // Number of properties that has been processed
	ULONG                     m_ulCurrentPropertyNum;   // Current Property that is processing;
	ULONG                     m_ulChunkID;              // Current chunk id
	BOOL                      m_fContents;              // TRUE if contents requested
	BOOL                      m_fEof;                   // TRUE if end of file reached
	::std::wstring            m_pwsBuffer;              // Buffer to save UNICODE content from ChunkBuffer.
	ULONG			          m_ChunkPosition;          // Chunk pointer to specify the current Chunk;
	ULONG                     m_cAttributes;            // Count of attributes
	CFullPropSpec *           m_pAttributes;            // Attributes to filter
	IStream *                 m_pStream;

};

//C-------------------------------------------------------------------------
//
//  Class:      COooFilterCF
//
//  Purpose:    Implements class factory for OpenOffice filter
//
//--------------------------------------------------------------------------

class COooFilterCF : public IClassFactory
{
public:
	// From IUnknown
	virtual  SCODE STDMETHODCALLTYPE  QueryInterface(
		REFIID riid,
		void  ** ppvObject);

	virtual  ULONG STDMETHODCALLTYPE  AddRef();
	virtual  ULONG STDMETHODCALLTYPE  Release();

	// From IClassFactory
	virtual  SCODE STDMETHODCALLTYPE  CreateInstance(
		IUnknown * pUnkOuter,
		REFIID riid, void  ** ppvObject);

	virtual  SCODE STDMETHODCALLTYPE  LockServer(
		BOOL fLock);

private:
	friend SCODE STDMETHODCALLTYPE DllGetClassObject(
		REFCLSID   cid,
		REFIID     iid,
		void **    ppvObj);

	COooFilterCF();
	virtual  ~COooFilterCF();

	long m_lRefs;           // Reference count
};

/* vim: set noet sw=4 ts=4: */