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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_SW_INC_FMTMETA_HXX
#define INCLUDED_SW_INC_FMTMETA_HXX
#include <cppuhelper/weakref.hxx>
#include <svl/poolitem.hxx>
#include <sfx2/Metadatable.hxx>
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>
#include <vector>
namespace com { namespace sun { namespace star {
namespace text {
class XTextField;
}
}}}
/**
* The classes that make up a meta entity are:
* <dl>
* <dt>SwTxtMeta</dt><dd>the text hint</dd>
* <dt>SwFmtMeta</dt><dd>the pool item</dd>
* <dt>sw::Meta</dt><dd>the metadatable entity itself</dd>
* <dt>SwXMeta</dt><dd>the UNO wrapper object</dd>
* </dl>
*
* The text hint contains the pool item (as usual) and has a pointer to the
* text node at which it is attached.
* The pool item has a shared pointer to the metadatable entity, and a reverse
* pointer to the text attribute at which it is attached.
* The pool item is non-poolable; it may only be attached to one text
* attribute.
* Of all the pool items that refer to a metadatable entity, only one may be
* in the document content at any time. Others may be in the undo array, or in
* undo objects.
* The metadatable entity has a reverse pointer to the pool item that is
* currently in the document. It also registers as a client at the text node
* at which it is attached via this pool item and its text attribute.
* The UNO wrapper object registers as a client at the metadatable entity.
*
* Copying the metadatable entity proceeds in the following way:
* <ol>
* <li>The pool item is cloned (because it is non-poolable); the clone
* points to the same metadatable entity, but the metadatable entity's
* reverse pointer is unchanged.</li>
* <li>The DoCopy() method is called at the new pool item:
* it will clone the metadatable entity (using RegisterAsCopyOf).
* This is necessary, because first, a metadatable entity may
* only be inserted once into a document, and second, the copy may be
* inserted into a different document than the source document!</li>
* <li>A new text hint is created, taking over the new pool item.</li>
* <li>The text hint is inserted into the hints array of some text node.</li>
* </ol>
*/
class SwTxtMeta;
class SwXMeta;
class SwXMetaField;
namespace sw {
class Meta;
}
class SwFmtMeta
: public SfxPoolItem
{
private:
friend class SwTxtMeta; ///< needs SetTxtAttr, DoCopy
friend class ::sw::Meta; ///< needs m_pTxtAttr
::boost::shared_ptr< ::sw::Meta > m_pMeta;
SwTxtMeta * m_pTxtAttr;
SwTxtMeta * GetTxtAttr() { return m_pTxtAttr; }
void SetTxtAttr(SwTxtMeta * const i_pTxtAttr);
/// this method <em>must</em> be called when the hint is actually copied
void DoCopy(::sw::MetaFieldManager & i_rTargetDocManager,
SwTxtNode & i_rTargetTxtNode);
explicit SwFmtMeta( const sal_uInt16 i_nWhich );
public:
/// takes ownership
explicit SwFmtMeta( ::boost::shared_ptr< ::sw::Meta > const & i_pMeta,
const sal_uInt16 i_nWhich );
virtual ~SwFmtMeta();
/// SfxPoolItem
virtual bool operator==( const SfxPoolItem & ) const;
virtual SfxPoolItem * Clone( SfxItemPool *pPool = 0 ) const;
/// notify clients registered at m_pMeta that this meta is being (re-)moved
void NotifyChangeTxtNode(SwTxtNode *const pTxtNode);
static SwFmtMeta * CreatePoolDefault( const sal_uInt16 i_nWhich );
::sw::Meta * GetMeta() { return m_pMeta.get(); }
};
namespace sw {
class MetaFieldManager;
class Meta
: public ::sfx2::Metadatable
, public SwModify
{
protected:
friend class ::SwFmtMeta; ///< SetFmtMeta, NotifyChangeTxtNode
friend class ::SwXMeta; ///< GetTxtNode, GetTxtAttr, Get/SetXMeta
::com::sun::star::uno::WeakReference<
::com::sun::star::rdf::XMetadatable> m_wXMeta;
SwFmtMeta * m_pFmt;
SwTxtNode * m_pTxtNode;
SwTxtMeta * GetTxtAttr() const;
SwTxtNode * GetTxtNode() const; ///< @return 0 if not in document (undo)
SwFmtMeta * GetFmtMeta() const { return m_pFmt; }
void SetFmtMeta( SwFmtMeta * const i_pFmt ) { m_pFmt = i_pFmt; };
void NotifyChangeTxtNodeImpl();
void NotifyChangeTxtNode(SwTxtNode *const pTxtNode);
::com::sun::star::uno::WeakReference<
::com::sun::star::rdf::XMetadatable> const& GetXMeta() const
{ return m_wXMeta; }
void SetXMeta(::com::sun::star::uno::Reference<
::com::sun::star::rdf::XMetadatable> const& xMeta)
{ m_wXMeta = xMeta; }
/// SwClient
virtual void Modify( const SfxPoolItem* pOld, const SfxPoolItem *pNew );
public:
explicit Meta(SwFmtMeta * const i_pFmt = 0);
virtual ~Meta();
/// sfx2::Metadatable
virtual ::sfx2::IXmlIdRegistry& GetRegistry();
virtual bool IsInClipboard() const;
virtual bool IsInUndo() const;
virtual bool IsInContent() const;
virtual ::com::sun::star::uno::Reference<
::com::sun::star::rdf::XMetadatable > MakeUnoObject();
};
class MetaField
: public Meta
{
private:
friend class ::SwFmtMeta;
friend class ::SwXMetaField;
friend class ::sw::MetaFieldManager;
sal_uInt32 m_nNumberFormat;
bool m_bIsFixedLanguage;
sal_uInt32 GetNumberFormat(OUString const & rContent) const;
void SetNumberFormat(sal_uInt32 nNumberFormat);
bool IsFixedLanguage() const { return m_bIsFixedLanguage; }
void SetIsFixedLanguage(bool b) { m_bIsFixedLanguage = b; }
explicit MetaField(SwFmtMeta * const i_pFmt = 0,
const sal_uInt32 nNumberFormat = SAL_MAX_UINT32,
const bool bIsFixedLanguage = false );
public:
/// get prefix/suffix from the RDF repository. @throws RuntimeException
void GetPrefixAndSuffix(
OUString *const o_pPrefix, OUString *const o_pSuffix);
};
/// knows all meta-fields in the document.
class MetaFieldManager
: private ::boost::noncopyable
{
private:
typedef ::std::vector< ::boost::weak_ptr<MetaField> > MetaFieldList_t;
MetaFieldList_t m_MetaFields;
public:
MetaFieldManager();
::boost::shared_ptr<MetaField> makeMetaField(
SwFmtMeta * const i_pFmt = 0,
const sal_uInt32 nNumberFormat = SAL_MAX_UINT32,
const bool bIsFixedLanguage = false );
/// get all meta fields
::std::vector< ::com::sun::star::uno::Reference<
::com::sun::star::text::XTextField> > getMetaFields();
};
} // namespace sw
#endif // INCLUDED_SW_INC_FMTMETA_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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