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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: nodechangeinfo.hxx,v $
*
* $Revision: 1.10 $
*
* last change: $Author: ihi $ $Date: 2007-11-23 14:21:33 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef CONFIGMGR_CONFIGCHANGEINFO_HXX_
#define CONFIGMGR_CONFIGCHANGEINFO_HXX_
#ifndef CONFIGMGR_CONFIGPATH_HXX_
#include "configpath.hxx"
#endif
#ifndef CONFIGMGR_CONFIGNODE_HXX_
#include "noderef.hxx"
#endif
#ifndef CONFIGMGR_CONFIGVALUEREF_HXX_
#include "valueref.hxx"
#endif
#ifndef _RTL_REF_HXX_
#include <rtl/ref.hxx>
#endif
#ifndef INCLUDED_VECTOR
#include <vector>
#define INCLUDED_VECTOR
#endif
namespace configmgr
{
namespace configuration
{
//-----------------------------------------------------------------------------
typedef com::sun::star::uno::Type UnoType;
typedef com::sun::star::uno::Any UnoAny;
//-----------------------------------------------------------------------------
class Tree;
class NodeRef;
class ValueRef;
class NodeID;
class SubNodeID;
class ElementTreeImpl;
typedef rtl::Reference<ElementTreeImpl> ElementTreeHolder;
//-----------------------------------------------------------------------------
/// captures the values of something changing
template <class DataT>
struct DataChange
{
DataT newValue;
DataT oldValue;
DataChange()
: newValue(), oldValue()
{}
DataChange(DataT const& newValue_, DataT const& oldValue_)
: newValue(newValue_), oldValue(oldValue_)
{}
// note: maybe we should support a comparison object
bool isDataChange() const
{ return !(oldValue == newValue); } // not using != to avoid conversion warning
};
//-----------------------------------------------------------------------------
/// information about what changed (but close to no context)
class NodeChangeData
{
public:
//-------------------------------------------------
enum Type
{
eNoChange,
// Changes to value nodes
eSetValue,
eSetDefault,
// Changes to set nodes
eInsertElement,
eReplaceElement,
eRemoveElement,
eRenameElementTree, // not fully supported yet
eResetSetDefault
};
//-------------------------------------------------
bool isEmptyChange() const { return eNoChange == type; }
bool isValueChange() const { return eSetValue <= type && type <= eSetDefault; }
bool isSetChange() const { return eInsertElement <= type && type <= eRemoveElement; }
bool isRemoveSetChange() const { return eRemoveElement == type;}
bool isReplaceSetChange() const { return eReplaceElement == type;}
//-------------------------------------------------
bool isDataChange() const;
//-------------------------------------------------
// wrapper object creation
Tree getNewElementTree() const;
Tree getOldElementTree() const;
NodeRef getNewElementNodeRef() const;
NodeRef getOldElementNodeRef() const;
NodeID getNewElementNodeID() const;
NodeID getOldElementNodeID() const;
//-------------------------------------------------
//-- Compiler barrier for element tree ------------
NodeChangeData();
NodeChangeData(NodeChangeData const& aOther);
NodeChangeData& operator=(NodeChangeData const& aOther);
~NodeChangeData();
//-------------------------------------------------
Type type;
// Value change: old/new value; Set change: new/old api element (if known); Rename: old/new name
DataChange< UnoAny > unoData;
// Value change: NULL,NULL; Set change: new/old tree element; Rename: the affected element-tree (twice)
DataChange< ElementTreeHolder > element;
//-------------------------------------------------
};
//-------------------------------------------------
// Identify the location of a change. Interpretation of members may depend upon
class NodeChangeLocation
{
public:
//-------------------------------------------------
// checks whether the base has been properly set up.
// Does not check for existence of the affected node
/// check whether the location has been initialized properly
bool isValidData() const;
/// check whether the location is for a valid object
bool isValidLocation() const;
//-------------------------------------------------
/// retrieve the path from the base node to the changed node (which might be a child of the affected node)
RelativePath getAccessor() const { return m_path; }
/// retrieve the tree where the change is actually initiated/reported
Tree getBaseTree() const;
/// retrieve the node where the change is actually initiated/reported
NodeRef getBaseNode() const;
/// retrieve the tree where the change is actually taking place (may be Empty, if the tree has never been accessed)
Tree getAffectedTree() const;
/// retrieve the tree where the change is actually taking place (may be Empty, if the tree has never been accessed)
TreeRef getAffectedTreeRef() const;
/// retrieve the node where the change is actually taking place (if the affected Tree is not empty)
NodeRef getAffectedNode() const;
/// identify the node where the change is actually taking place
NodeID getAffectedNodeID() const;
/// identify the node (within the affected tree), that actually is changed (this one may be a value node)
SubNodeID getChangingValueID() const;
//-------------------------------------------------
void setAccessor( RelativePath const& aAccessor );
void setBase( NodeID const& aBaseID );
void setBase( Tree const& aBaseTree, NodeRef const& aBaseNode )
{ setBase( NodeID(aBaseTree,aBaseNode) ); }
void setAffected( NodeID const& aTargetID );
void setAffected( Tree const& aTargetTree, NodeRef const& aTargetNode )
{ setAffected( NodeID(aTargetTree,aTargetNode) ); }
void setChangingSubnode( bool bSubnode = true );
//-------------------------------------------------
NodeChangeLocation();
// NodeChangeLocation(NodeChangeLocation const& aOther);
// NodeChangeLocation& operator=(NodeChangeLocation const& aOther);
// ~NodeChangeLocation();
//-------------------------------------------------
private:
RelativePath m_path; // path from baseNode to changing node
NodeID m_base; // a (non-empty) node
NodeID m_affected; // identifies the affected node (if available)
bool m_bSubNodeChanging; // do we change a value ?
//-------------------------------------------------
};
//-----------------------------------------------------------------------------
class NodeChangeInformation
{
public:
//-------------------------------------------------
explicit
NodeChangeInformation()
: change()
, location()
{
}
//-------------------------------------------------
NodeChangeData change;
NodeChangeLocation location;
//-------------------------------------------------
bool hasValidLocation() const { return location.isValidLocation(); }
bool isDataChange() const { return change.isDataChange(); }
bool isEmptyChange() const { return change.isEmptyChange(); }
bool isValueChange() const { return change.isValueChange(); }
bool isSetChange() const { return change.isSetChange(); }
//-------------------------------------------------
};
//-----------------------------------------------------------------------------
class NodeChangesInformation
{
typedef std::vector< NodeChangeInformation > Rep;
public:
typedef Rep::const_iterator Iterator;
Rep::size_type size() const { return m_data.size(); }
bool empty() const { return m_data.empty(); }
void reserve(Rep::size_type sz_) { m_data.reserve(sz_); }
void clear() { m_data.clear(); }
void swap(NodeChangesInformation& aOther) throw() { m_data.swap(aOther.m_data); }
void push_back(NodeChangeInformation const& aChange_)
{ m_data.push_back(aChange_); }
Iterator begin() const { return m_data.begin(); }
Iterator end() const { return m_data.end(); }
private:
Rep m_data;
};
//-----------------------------------------------------------------------------
}
}
#if !defined(WNT) || (defined(WNT) && _MSC_VER < 1400)
namespace std
{
template <>
inline
void swap(configmgr::configuration::NodeChangesInformation& lhs, configmgr::configuration::NodeChangesInformation& rhs)
{ lhs.swap(rhs); }
}
#endif
#endif // CONFIGMGR_CONFIGCHANGEINFO_HXX_
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