dhewm3/neo/idlib/containers/StrList.h

/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.

This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").

Doom 3 Source Code 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.

Doom 3 Source Code 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#ifndef __STRLIST_H__
#define __STRLIST_H__

#include "idlib/containers/List.h"
#include "idlib/Str.h"

/*
===============================================================================

	idStrList

===============================================================================
*/

typedef idList<idStr> idStrList;
typedef idList<idStr*> idStrPtrList;
typedef idStr *idStrPtr;

/*
================
idListSortCompare<idStrPtr>

Compares two pointers to strings. Used to sort a list of string pointers alphabetically in idList<idStr>::Sort.
================
*/
template<>
ID_INLINE int idListSortCompare<idStrPtr>( const idStrPtr *a, const idStrPtr *b ) {
	return ( *a )->Icmp( **b );
}

/*
================
idStrList::Sort

Sorts the list of strings alphabetically. Creates a list of pointers to the actual strings and sorts the
pointer list. Then copies the strings into another list using the ordered list of pointers.
================
*/
template<>
ID_INLINE void idStrList::Sort( cmp_t *compare ) {
	int i;

	if ( !num ) {
		return;
	}

	idList<idStr>		other;
	idList<idStrPtr>	pointerList;

	pointerList.SetNum( num );
	for( i = 0; i < num; i++ ) {
		pointerList[ i ] = &( *this )[ i ];
	}

	pointerList.Sort();

	other.SetNum( num );
	other.SetGranularity( granularity );
	for( i = 0; i < other.Num(); i++ ) {
		other[ i ] = *pointerList[ i ];
	}

	this->Swap( other );
}

/*
================
idStrList::SortSubSection

Sorts a subsection of the list of strings alphabetically.
================
*/
template<>
ID_INLINE void idStrList::SortSubSection( int startIndex, int endIndex, cmp_t *compare ) {
	int i, s;

	if ( !num ) {
		return;
	}
	if ( startIndex < 0 ) {
		startIndex = 0;
	}
	if ( endIndex >= num ) {
		endIndex = num - 1;
	}
	if ( startIndex >= endIndex ) {
		return;
	}

	idList<idStr>		other;
	idList<idStrPtr>	pointerList;

	s = endIndex - startIndex + 1;
	other.SetNum( s );
	pointerList.SetNum( s );
	for( i = 0; i < s; i++ ) {
		other[ i ] = ( *this )[ startIndex + i ];
		pointerList[ i ] = &other[ i ];
	}

	pointerList.Sort();

	for( i = 0; i < s; i++ ) {
		(*this)[ startIndex + i ] = *pointerList[ i ];
	}
}

/*
================
idStrList::Size
================
*/
template<>
ID_INLINE size_t idStrList::Size( void ) const {
	size_t s;
	int i;

	s = sizeof( *this );
	for( i = 0; i < Num(); i++ ) {
		s += ( *this )[ i ].Size();
	}

	return s;
}

/*
===============================================================================

	idStrList path sorting

===============================================================================
*/

/*
================
idListSortComparePaths

Compares two pointers to strings. Used to sort a list of string pointers alphabetically in idList<idStr>::Sort.
================
*/
template<class idStrPtr>
ID_INLINE int idListSortComparePaths( const idStrPtr *a, const idStrPtr *b ) {
	return ( *a )->IcmpPath( **b );
}

/*
================
idStrListSortPaths

Sorts the list of path strings alphabetically and makes sure folders come first.
================
*/
ID_INLINE void idStrListSortPaths( idStrList &list ) {
	int i;

	if ( !list.Num() ) {
		return;
	}

	idList<idStr>		other;
	idList<idStrPtr>	pointerList;

	pointerList.SetNum( list.Num() );
	for( i = 0; i < list.Num(); i++ ) {
		pointerList[ i ] = &list[ i ];
	}

	pointerList.Sort( idListSortComparePaths<idStrPtr> );

	other.SetNum( list.Num() );
	other.SetGranularity( list.GetGranularity() );
	for( i = 0; i < other.Num(); i++ ) {
		other[ i ] = *pointerList[ i ];
	}

	list.Swap( other );
}

#endif /* !__STRLIST_H__ */