md3view/nodedictionary.cpp
2011-12-05 20:41:28 +08:00

100 lines
3.1 KiB
C++
Executable file

/*
Copyright (C) 2010 Matthew Baranowski, Sander van Rossen & Raven software.
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "ndictionary.h"
#include <iostream>
using namespace std;
void NodeDictionaryInfo::insert( Object element, Object key )
{
NodeLocator nL = new NodeLocatorInfo( this, element, key );
insertLast( nL );
};
Object NodeDictionaryInfo::insertReplace( Object element, Object key )
{
Object toReturn;
NodeLocator nL;
for (nL = (NodeLocator)first(); nL != NULL; nL = (NodeLocator)after(nL))
{
if (m_keyComp->equal( nL->key(), key )) {
toReturn = nL->element();
nL->setElement( element );
return toReturn;
}
}
// found nothing so append
nL = new NodeLocatorInfo( this, element, key );
insertLast( nL );
return NULL;
};
Object NodeDictionaryInfo::find(Object key)
{
for (NodeLocator nL = (NodeLocator)first(); nL != NULL; nL = (NodeLocator)after(nL))
{
if (m_keyComp->equal( nL->key(), key )) {
return nL->element();
}
}
return NULL; // found nothing
}
Object NodeDictionaryInfo::remove( Object key )
{
for (NodeLocator nL = (NodeLocator)first(); nL != NULL; nL = (NodeLocator)after(nL))
{
if (m_keyComp->equal( nL->key(), key )) {
return remove( nL );
}
}
return NULL; // found nothing
}
Object NodeDictionaryInfo::replace( Object element, Object key )
{
Object toReturn;
for (NodeLocator nL = (NodeLocator)first(); nL != NULL; nL = (NodeLocator)after(nL))
{
if (m_keyComp->equal( nL->key(), key )) {
toReturn = nL->element();
nL->setElement( element );
return toReturn;
}
}
return NULL; // found nothing
}
void NodeDictionaryInfo::dumpDictionary()
{
cout << "Dictionary Dump, size " << size() << endl;
for (NodeLocator nL = (NodeLocator)first(); nL != NULL; nL = (NodeLocator)after(nL))
{
cout << " Position " << nL;
cout << " next " << nL->getNextNode();
cout << " prev " << nL->getPrevNode();
cout << " element " << nL->element();
cout << " key " << (char *)nL->key() << endl;
}
}