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// Copyright (C) 2003 Dominique Devriese <devriese@kde.org>
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
#ifndef KIG_MISC_OBJECT_HIERARCHY_H
#define KIG_MISC_OBJECT_HIERARCHY_H
#include "../objects/common.h"
#include <map>
#include <vector>
#include <string>
class ObjectImpType;
class ArgsParser;
class ObjectHierarchy
{
public:
class Node;
private:
std::vector<Node*> mnodes;
uint mnumberofargs;
uint mnumberofresults;
std::vector<const ObjectImpType*> margrequirements;
std::vector<std::string> musetexts;
std::vector<std::string> mselectstatements;
// these two are really part of the constructor...
int visit( const ObjectCalcer* o, std::map<const ObjectCalcer*, int>&,
bool needed, bool neededatend = false);
int storeObject( const ObjectCalcer*, const std::vector<ObjectCalcer*>& po, std::vector<int>& pl,
std::map<const ObjectCalcer*, int>& seenmap );
friend bool operator==( const ObjectHierarchy& lhs, const ObjectHierarchy& rhs );
void init( const std::vector<ObjectCalcer*>& from, const std::vector<ObjectCalcer*>& to );
/**
* this constructor is private since it should be used only by the static
* constructor buildSafeObjectHierarchy
*
* \see ObjectHierarchy::buildSafeObjectHierarchy
*/
ObjectHierarchy();
public:
ObjectHierarchy( const ObjectCalcer* from, const ObjectCalcer* to );
ObjectHierarchy( const std::vector<ObjectCalcer*>& from, const ObjectCalcer* to );
ObjectHierarchy( const std::vector<ObjectCalcer*>& from, const std::vector<ObjectCalcer*>& to );
ObjectHierarchy( const ObjectHierarchy& h );
~ObjectHierarchy();
/**
* this creates a new ObjectHierarchy, that takes a.size() less
* arguments, but uses copies of the ObjectImp's in \p a instead..
*/
ObjectHierarchy withFixedArgs( const Args& a ) const;
std::vector<ObjectImp*> calc( const Args& a, const KigDocument& doc ) const;
/**
* saves the ObjectHierarchy data in children xml tags of \p parent ..
*/
void serialize( QDomElement& parent, QDomDocument& doc ) const;
/**
* Deserialize the ObjectHierarchy data from the xml element \p parent ..
* Since this operation can fail for some reasons, we provide it as a
* static to return 0 in case of error.
*/
static ObjectHierarchy* buildSafeObjectHierarchy( const QDomElement& parent, QString& error );
// ObjectHierarchy( const QDomElement& parent );
/**
* build a set of objects that interdepend according to this
* ObjectHierarchy.. Only the result objects are returned. Helper
* objects that connect the given objects with the returned objects,
* can only be found by following the returned objects' parents()
* methods..
*/
std::vector<ObjectCalcer*> buildObjects( const std::vector<ObjectCalcer*>& os, const KigDocument& ) const;
ArgsParser argParser() const;
uint numberOfArgs() const { return mnumberofargs; }
uint numberOfResults() const { return mnumberofresults; }
const ObjectImpType* idOfLastResult() const;
bool resultDoesNotDependOnGiven() const;
bool allGivenObjectsUsed() const;
ObjectHierarchy transformFinalObject( const Transformation& t ) const;
};
bool operator==( const ObjectHierarchy& lhs, const ObjectHierarchy& rhs );
#endif
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