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/* This file is part of the KDE libraries
Copyright (C) 1999 Carsten Pfeiffer <pfeiffer@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KCOMPLETION_PRIVATE_H
#define KCOMPLETION_PRIVATE_H
#include <tqstring.h>
#include <ksortablevaluelist.h>
class KCompTreeNode;
#include <kallocator.h>
/**
* @internal
*/
class KDECORE_EXPORT KCompTreeNodeList
{
public:
KCompTreeNodeList() : first(0), last(0), m_count(0) {}
KCompTreeNode *begin() const { return first; }
KCompTreeNode *end() const { return last; }
KCompTreeNode *at(uint index) const;
void append(KCompTreeNode *item);
void prepend(KCompTreeNode *item);
void insert(KCompTreeNode *after, KCompTreeNode *item);
KCompTreeNode *remove(KCompTreeNode *item);
uint count() const { return m_count; }
private:
KCompTreeNode *first, *last;
uint m_count;
};
typedef KCompTreeNodeList KCompTreeChildren;
/**
* A helper class for KCompletion. Implements a tree of TQChar.
*
* The tree looks like this (containing the items "kde", "kde-ui",
* "kde-core" and "pfeiffer". Every item is delimited with TQChar( 0x0 )
*
* some_root_node
* / \
* k p
* | |
* d f
* | |
* e e
* /| |
* 0x0 - i
* / \ |
* u c f
* | | |
* i o f
* | | |
* 0x0 r e
* | |
* e r
* | |
* 0x0 0x0
*
* @author Carsten Pfeiffer <pfeiffer@kde.org>
* @internal
*/
class KDECORE_EXPORT KCompTreeNode : public QChar
{
public:
KCompTreeNode() : TQChar(), myWeight(0) {}
KCompTreeNode( const TQChar& ch, uint weight = 0 )
: TQChar( ch ),
myWeight( weight ) {}
~KCompTreeNode();
void * operator new( size_t s ) {
return alloc.allocate( s );
}
void operator delete( void * s ) {
alloc.deallocate( s );
}
// Returns a child of this node matching ch, if available.
// Otherwise, returns 0L
inline KCompTreeNode * find( const TQChar& ch ) const {
KCompTreeNode * cur = myChildren.begin();
while (cur && (*cur != ch)) cur = cur->next;
return cur;
}
KCompTreeNode * insert( const TQChar&, bool sorted );
void remove( const TQString& );
inline int childrenCount() const { return myChildren.count(); }
// weighting
inline void confirm() { myWeight++; }
inline void confirm(uint w) { myWeight += w; }
inline void decline() { myWeight--; }
inline uint weight() const { return myWeight; }
inline const KCompTreeChildren * children() const {
return &myChildren;
}
inline const KCompTreeNode * childAt(int index) const {
return myChildren.at(index);
}
inline const KCompTreeNode * firstChild() const {
return myChildren.begin();
}
inline const KCompTreeNode * lastChild() const {
return myChildren.end();
}
/* We want to handle a list of KCompTreeNodes on our own, to not
need to use TQValueList<>. And to make it even more fast we don't
use an accessor, but just a public member. */
KCompTreeNode *next;
private:
uint myWeight;
KCompTreeNodeList myChildren;
static KZoneAllocator alloc;
};
// some more helper stuff
typedef KSortableValueList<TQString> KCompletionMatchesList;
/**
* @internal
*/
class KDECORE_EXPORT KCompletionMatchesWrapper
{
public:
KCompletionMatchesWrapper( bool sort = false )
: sortedList( sort ? new KCompletionMatchesList : 0L ),
dirty( false )
{}
~KCompletionMatchesWrapper() {
delete sortedList;
}
void setSorting( bool sort ) {
if ( sort && !sortedList )
sortedList = new KCompletionMatchesList;
else if ( !sort ) {
delete sortedList;
sortedList = 0L;
}
stringList.clear();
dirty = false;
}
bool sorting() const {
return sortedList != 0L;
}
void append( int i, const TQString& string ) {
if ( sortedList )
sortedList->insert( i, string );
else
stringList.append( string );
dirty = true;
}
void clear() {
if ( sortedList )
sortedList->clear();
stringList.clear();
dirty = false;
}
uint count() const {
if ( sortedList )
return sortedList->count();
return stringList.count();
}
bool isEmpty() const {
return count() == 0;
}
TQString first() const {
return list().first();
}
TQString last() const {
return list().last();
}
TQStringList list() const;
mutable TQStringList stringList;
KCompletionMatchesList *sortedList;
mutable bool dirty;
};
#endif // KCOMPLETION_PRIVATE_H
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