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fd03ee4b3b
Fixed type casts in NCollection maps Avoid invalid type cast in handling of LDOM text object Use correct pointer type in callback function of Graphic3d_CGraduatedTrihedron class Format of printf() simplified in IntPatch_Point.cxx
372 lines
11 KiB
C++
372 lines
11 KiB
C++
// Created on: 2002-04-24
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// Created by: Alexander KARTOMIN (akm)
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// Copyright (c) 2002-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and / or modify it
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// under the terms of the GNU Lesser General Public version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef NCollection_DataMap_HeaderFile
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#define NCollection_DataMap_HeaderFile
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#include <NCollection_BaseCollection.hxx>
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#include <NCollection_BaseMap.hxx>
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#include <NCollection_TListNode.hxx>
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#include <NCollection_DefaultHasher.hxx>
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#include <Standard_TypeMismatch.hxx>
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#include <Standard_NoSuchObject.hxx>
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/**
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* Purpose: The DataMap is a Map to store keys with associated
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* Items. See Map from NCollection for a discussion
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* about the number of buckets.
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*
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* The DataMap can be seen as an extended array where
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* the Keys are the indices. For this reason the
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* operator () is defined on DataMap to fetch an Item
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* from a Key. So the following syntax can be used :
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*
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* anItem = aMap(aKey);
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* aMap(aKey) = anItem;
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*
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* This analogy has its limit. aMap(aKey) = anItem
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* can be done only if aKey was previously bound to
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* an item in the map.
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*/
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template < class TheKeyType,
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class TheItemType,
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class Hasher = NCollection_DefaultHasher<TheKeyType> > class NCollection_DataMap
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: public NCollection_BaseCollection<TheItemType>,
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public NCollection_BaseMap
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{
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// **************** Adaptation of the TListNode to the DATAmap
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public:
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class DataMapNode : public NCollection_TListNode<TheItemType>
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{
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public:
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//! Constructor with 'Next'
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DataMapNode (const TheKeyType& theKey,
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const TheItemType& theItem,
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NCollection_ListNode* theNext) :
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NCollection_TListNode<TheItemType> (theItem, theNext)
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{ myKey = theKey; }
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//! Key
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const TheKeyType& Key (void) const
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{ return myKey; }
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//! Static deleter to be passed to BaseList
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static void delNode (NCollection_ListNode * theNode,
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Handle(NCollection_BaseAllocator)& theAl)
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{
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((DataMapNode *) theNode)->~DataMapNode();
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theAl->Free(theNode);
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}
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private:
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TheKeyType myKey;
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};
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public:
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// **************** Implementation of the Iterator interface.
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class Iterator
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: public NCollection_BaseCollection<TheItemType>::Iterator,
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public NCollection_BaseMap::Iterator
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{
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public:
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//! Empty constructor
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Iterator (void) :
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NCollection_BaseMap::Iterator() {}
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//! Constructor
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Iterator (const NCollection_DataMap& theMap) :
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NCollection_BaseMap::Iterator(theMap) {}
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//! Query if the end of collection is reached by iterator
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virtual Standard_Boolean More(void) const
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{ return PMore(); }
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//! Make a step along the collection
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virtual void Next(void)
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{ PNext(); }
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//! Value inquiry
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virtual const TheItemType& Value(void) const
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{
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#if !defined No_Exception && !defined No_Standard_NoSuchObject
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if (!More())
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Standard_NoSuchObject::Raise("NCollection_DataMap::Iterator::Value");
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#endif
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return ((DataMapNode *) myNode)->Value();
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}
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//! Value change access
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virtual TheItemType& ChangeValue(void) const
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{
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#if !defined No_Exception && !defined No_Standard_NoSuchObject
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if (!More())
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Standard_NoSuchObject::Raise("NCollection_DataMap::Iterator::ChangeValue");
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#endif
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return ((DataMapNode *) myNode)->ChangeValue();
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}
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//! Key
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const TheKeyType& Key (void) const
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{
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#if !defined No_Exception && !defined No_Standard_NoSuchObject
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if (!More())
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Standard_NoSuchObject::Raise("NCollection_DataMap::Iterator::Key");
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#endif
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return ((DataMapNode *) myNode)->Key();
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}
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};
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public:
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// ---------- PUBLIC METHODS ------------
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//! Constructor
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NCollection_DataMap (const Standard_Integer NbBuckets=1,
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const Handle(NCollection_BaseAllocator)& theAllocator = 0L)
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: NCollection_BaseCollection<TheItemType>(theAllocator),
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NCollection_BaseMap (NbBuckets, Standard_True) {}
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//! Copy constructor
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NCollection_DataMap (const NCollection_DataMap& theOther)
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: NCollection_BaseCollection<TheItemType>(theOther.myAllocator),
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NCollection_BaseMap (theOther.NbBuckets(), Standard_True)
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{ *this = theOther; }
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//! Assign another collection
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virtual void Assign(const NCollection_BaseCollection<TheItemType>& theOther)
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{
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if (this == &theOther)
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return;
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Standard_TypeMismatch::Raise ("NCollection_DataMap::Assign impossible");
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}
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//! Exchange the content of two maps without re-allocations.
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//! Notice that allocators will be swapped as well!
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void Exchange (NCollection_DataMap& theOther)
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{
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this->exchangeAllocators (theOther);
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this->exchangeMapsData (theOther);
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}
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//! = another map
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NCollection_DataMap& operator= (const NCollection_DataMap& theOther)
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{
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if (this == &theOther)
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return *this;
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Clear(theOther.myAllocator);
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ReSize (theOther.Extent()-1);
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Iterator anIter(theOther);
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for (; anIter.More(); anIter.Next())
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Bind (anIter.Key(), anIter.Value());
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return *this;
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}
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//! ReSize
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void ReSize (const Standard_Integer N)
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{
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NCollection_ListNode** newdata = NULL;
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NCollection_ListNode** dummy = NULL;
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Standard_Integer newBuck;
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if (BeginResize (N, newBuck, newdata, dummy, this->myAllocator))
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{
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if (myData1)
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{
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DataMapNode** olddata = (DataMapNode**) myData1;
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DataMapNode *p, *q;
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Standard_Integer i,k;
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for (i = 0; i <= NbBuckets(); i++)
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{
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if (olddata[i])
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{
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p = olddata[i];
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while (p)
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{
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k = Hasher::HashCode(p->Key(),newBuck);
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q = (DataMapNode*) p->Next();
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p->Next() = newdata[k];
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newdata[k] = p;
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p = q;
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}
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}
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}
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}
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EndResize (N, newBuck, newdata, dummy, this->myAllocator);
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}
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}
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//! Bind
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Standard_Boolean Bind (const TheKeyType& theKey, const TheItemType& theItem)
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{
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if (Resizable())
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ReSize(Extent());
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DataMapNode** data = (DataMapNode**)myData1;
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Standard_Integer k = Hasher::HashCode (theKey, NbBuckets());
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DataMapNode* p = data[k];
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while (p)
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{
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if (Hasher::IsEqual(p->Key(), theKey))
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{
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p->ChangeValue() = theItem;
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return Standard_False;
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}
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p = (DataMapNode *) p->Next();
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}
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data[k] = new (this->myAllocator) DataMapNode (theKey, theItem, data[k]);
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Increment();
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return Standard_True;
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}
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//! IsBound
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Standard_Boolean IsBound(const TheKeyType& K) const
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{
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if (IsEmpty())
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return Standard_False;
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DataMapNode** data = (DataMapNode**) myData1;
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DataMapNode* p = data[Hasher::HashCode(K,NbBuckets())];
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while (p)
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{
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if (Hasher::IsEqual(p->Key(),K))
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return Standard_True;
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p = (DataMapNode *) p->Next();
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}
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return Standard_False;
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}
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//! UnBind
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Standard_Boolean UnBind(const TheKeyType& K)
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{
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if (IsEmpty())
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return Standard_False;
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DataMapNode** data = (DataMapNode**) myData1;
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Standard_Integer k = Hasher::HashCode(K,NbBuckets());
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DataMapNode* p = data[k];
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DataMapNode* q = NULL;
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while (p)
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{
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if (Hasher::IsEqual(p->Key(),K))
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{
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Decrement();
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if (q)
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q->Next() = p->Next();
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else
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data[k] = (DataMapNode*) p->Next();
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p->~DataMapNode();
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this->myAllocator->Free(p);
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return Standard_True;
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}
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q = p;
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p = (DataMapNode*) p->Next();
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}
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return Standard_False;
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}
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//! Find
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const TheItemType& Find(const TheKeyType& theKey) const
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{
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#if !defined No_Exception && !defined No_Standard_NoSuchObject
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if (IsEmpty())
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Standard_NoSuchObject::Raise ("NCollection_DataMap::Find");
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#endif
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DataMapNode* p = (DataMapNode*) myData1[Hasher::HashCode(theKey,NbBuckets())];
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while (p)
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{
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if (Hasher::IsEqual(p->Key(),theKey))
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return p->Value();
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p = (DataMapNode*) p->Next();
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}
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Standard_NoSuchObject::Raise("NCollection_DataMap::Find");
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return p->Value(); // This for compiler
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}
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//! Find value for key with copying.
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//! @return true if key was found
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Standard_Boolean Find (const TheKeyType& theKey,
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TheItemType& theValue) const
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{
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if (IsEmpty())
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{
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return Standard_False;
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}
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for (DataMapNode* aNodeIter = (DataMapNode* )myData1[Hasher::HashCode (theKey, NbBuckets())];
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aNodeIter != NULL;
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aNodeIter = (DataMapNode* )aNodeIter->Next())
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{
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if (Hasher::IsEqual (aNodeIter->Key(), theKey))
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{
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theValue = aNodeIter->Value();
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return Standard_True;
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}
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}
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return Standard_False;
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}
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//! operator ()
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const TheItemType& operator() (const TheKeyType& theKey) const
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{ return Find(theKey); }
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//! ChangeFind
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TheItemType& ChangeFind (const TheKeyType& theKey)
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{
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#if !defined No_Exception && !defined No_Standard_NoSuchObject
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if (IsEmpty())
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Standard_NoSuchObject::Raise ("NCollection_DataMap::Find");
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#endif
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DataMapNode* p = (DataMapNode*) myData1[Hasher::HashCode(theKey,NbBuckets())];
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while (p)
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{
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if (Hasher::IsEqual(p->Key(),theKey))
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return p->ChangeValue();
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p = (DataMapNode*) p->Next();
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}
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Standard_NoSuchObject::Raise("NCollection_DataMap::Find");
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return p->ChangeValue(); // This for compiler
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}
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//! operator ()
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TheItemType& operator() (const TheKeyType& theKey)
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{ return ChangeFind(theKey); }
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//! Clear data. If doReleaseMemory is false then the table of
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//! buckets is not released and will be reused.
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void Clear(const Standard_Boolean doReleaseMemory = Standard_True)
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{ Destroy (DataMapNode::delNode, this->myAllocator, doReleaseMemory); }
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//! Clear data and reset allocator
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void Clear (const Handle(NCollection_BaseAllocator)& theAllocator)
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{
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Clear();
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this->myAllocator = ( ! theAllocator.IsNull() ? theAllocator :
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NCollection_BaseAllocator::CommonBaseAllocator() );
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}
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//! Destructor
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~NCollection_DataMap (void)
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{ Clear(); }
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//! Size
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virtual Standard_Integer Size(void) const
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{ return Extent(); }
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private:
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// ----------- PRIVATE METHODS -----------
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//! Creates Iterator for use on BaseCollection
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virtual TYPENAME NCollection_BaseCollection<TheItemType>::Iterator&
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CreateIterator(void) const
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{ return *(new (this->IterAllocator()) Iterator(*this)); }
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};
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#endif
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