gecko-dev/lib/layout/laytrav.h
1998-03-28 02:44:41 +00:00

45 lines
1.8 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef _Laytrav_h_
#define _Laytrav_h_
#include "xp_core.h"
/* I wanted to define the following API to traverse the line list.
* What do you guys think? This might come in handy later when
* we want to traverse the different line lists in the layer tree.
* The logic for figuring out the next layer to go to will all be in one
* place: laytrav.c.
*/
/* API for traversing layout element list by visiting the nodes of the layer tree. */
/* You want to be able to go through only visible layers */
/* You want the option to drill down into containers or not. */
LO_Element * lo_tv_GetFirstLayoutElement( lo_DocState *state );
LO_Element * lo_tv_GetNextLayoutElement( lo_DocState *state, LO_Element *curr_ele, Bool skipContainers );
LO_Element * lo_tv_GetPrevLayoutElement( lo_DocState *state, LO_Element *curr_ele );
LO_Element * lo_tv_FindNextElementOfType( lo_DocState *state, LO_Element *curr_ele, uint32 ele_type );
LO_Element * lo_tv_FindPrevElementOfType( lo_DocState *state, LO_Element *curr_ele, uint32 ele_type );
Bool lo_tv_IsAContainer( LO_Element *curr_ele );
#endif