/*

    viDOOM - level editor for DOOM

    Copyright (C) 2000  Ian Cowburn (ianc@noddybox.demon.co.uk)

    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 2 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, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    -------------------------------------------------------------------------

    Editor selection definitions

*/
static const char rcs_id[]="$Id$";

#include "config.h"
#include "globals.h"
#include "editvar.h"



/* After all that hard work of making the Object type the only thing that
   the top level selection code needs to worry about, the Multi edit mode
   goes and throws a spanner in the works....
*/
void SetSelect_GENERIC(int i, int mode)
{
    Object *o;

    o=MapElem(map,i);
    o->select=mode;
}


int TmpAddCurrent(void)
{
    if ((ListSize(selected)==0)&&(current!=-1))
    	{
	ListAppend(selected,&current);
	return(TRUE);
	}
    else
    	return(FALSE);
}


void ClearSelection(void)
{
    int *n;
    Iterator i;

    VIDOOM_TRACE;

    if (map)
	{
	if (current!=-1)
	    SetSelect(current,SELECT_NONE);

	i=ListIterator(selected);

	while(i)
	    {
	    n=IteratorData(i);
	    SetSelect(*n,SELECT_NONE);
	    i=IteratorNext(i);
	    }
	}

    selected=ListEmpty(selected);
    current=-1;
}


void ClearSelectionLeaveCurrent(void)
{
    int *n;
    Iterator i;

    VIDOOM_TRACE;

    if (map)
	{
	i=ListIterator(selected);

	while(i)
	    {
	    n=IteratorData(i);
	    SetSelect(*n,SELECT_NONE);
	    i=IteratorNext(i);
	    }
	}

    selected=ListEmpty(selected);
}


void *SelHead(void)
{
    Iterator i;
    int *f;
    Object *o;
    void *p;

    VIDOOM_TRACE;

    i=ListIterator(selected);
    p=NULL;

    if ((f=IteratorData(i)))
    	{
	o=MapElem(map,*f);
	p=o->data;
	}

    IteratorClear(i);

    return(p);
}


/* END OF FILE */