linkablemapobj.cpp
author insilmaril
Tue, 03 Jun 2008 08:33:34 +0000
changeset 709 25eec6d77740
parent 644 954221e01e4e
child 721 12958f987bcf
permissions -rw-r--r--
Workaround for unreadable file with Qt 4.4
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#include <math.h>
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#include "linkablemapobj.h"
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#include "branchobj.h"
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#include "mapeditor.h"
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/////////////////////////////////////////////////////////////////
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// LinkableMapObj
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/////////////////////////////////////////////////////////////////
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LinkableMapObj::LinkableMapObj():MapObj()
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{
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  //  cout << "Const LinkableMapObj ()\n";
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    init ();
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}
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LinkableMapObj::LinkableMapObj(QGraphicsScene* s) :MapObj(s)
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{
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//    cout << "Const LinkableMapObj (s)\n";
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    init ();
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}
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LinkableMapObj::LinkableMapObj (LinkableMapObj* lmo) : MapObj (lmo->scene)
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{
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    copy (lmo);
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}
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LinkableMapObj::~LinkableMapObj()
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{
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    delete (bottomline);
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	delLink();
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}
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void LinkableMapObj::delLink()
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{
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	switch (style)
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	{
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		case Line:
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			delete (l);
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			break;
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		case Parabel:
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			while (!segment.isEmpty()) delete segment.takeFirst();
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			break;
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		case PolyLine:
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			delete (p);
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			break;
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		case PolyParabel:
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			delete (p);
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			break;
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		default:
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			break;
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	}		
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}
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void LinkableMapObj::init ()
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{
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    depth=-1;	
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	mapEditor=NULL;
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    childObj=NULL;
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    parObj=NULL;
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    parObjTmpBuf=NULL;
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    parPos=QPointF(0,0);
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    childPos=QPointF(0,0);
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	link2ParPos=false;
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    l=NULL;
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    orientation=UndefinedOrientation;
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    linkwidth=20;		
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	thickness_start=8;
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    style=UndefinedStyle;
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	linkpos=Bottom;
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    arcsegs=13;
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// TODO instead of linkcolor pen.color() could be used	all around
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	pen.setWidth (1);
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	pen.setColor (linkcolor);
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	pen.setCapStyle ( Qt::RoundCap );
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	bottomline=scene->addLine(QLineF(1,1,1,1),pen);
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    bottomline->setZValue(Z_LINK);
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    bottomline->show();
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    // Prepare showing the selection of a MapObj
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    selected=false;
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	hideLinkUnselected=false;
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	topPad=botPad=leftPad=rightPad=0;
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	repositionRequest=false;
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	// Rel Positions
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	relPos=QPointF(0,0);
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	useRelPos=false;
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	useOrientation=true;
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	// Reset ID
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	objID="";
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}
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void LinkableMapObj::copy (LinkableMapObj* other)
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{
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    MapObj::copy(other);
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	bboxTotal=other->bboxTotal;
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    setLinkStyle(other->style);
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    setLinkColor (other->linkcolor);
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	relPos=other->relPos;
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	useOrientation=other->useOrientation;
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	objID=other->objID;
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}
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void LinkableMapObj::setChildObj(LinkableMapObj* o)
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{
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    childObj=o;
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}
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void LinkableMapObj::setParObj(LinkableMapObj* o)
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{
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    parObj=o;
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	mapEditor=parObj->getMapEditor();
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}
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void LinkableMapObj::setParObjTmp(LinkableMapObj*,QPointF,int)
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{
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}
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void LinkableMapObj::unsetParObjTmp()
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{
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}
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bool LinkableMapObj::hasParObjTmp()
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{
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	if (parObjTmpBuf) return true;
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	return false;
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}
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void LinkableMapObj::setUseRelPos (const bool &b)
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{
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	useRelPos=b;
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}
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void LinkableMapObj::setRelPos()
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{
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	if (parObj)
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	{	
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		relPos.setX (absPos.x() - parObj->getChildPos().x() );
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		relPos.setY (absPos.y() - parObj->getChildPos().y() );
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		parObj->calcBBoxSize();
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	}	
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}
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void LinkableMapObj::setRelPos(const QPointF &p)
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{
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	relPos=p;
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	if (parObj)
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	{		
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		parObj->calcBBoxSize();
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		requestReposition();
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	}
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}
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QPointF LinkableMapObj::getRelPos()
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{
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	if (!parObj) return QPointF();
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	return relPos;
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}
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qreal LinkableMapObj::getTopPad()
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{
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	return topPad;
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}
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qreal LinkableMapObj::getLeftPad()
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{
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	return leftPad;
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}
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qreal LinkableMapObj::getRightPad()
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{
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	return rightPad;
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}
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LinkableMapObj::Style LinkableMapObj::getDefLinkStyle ()
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{
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	if (!mapEditor) return UndefinedStyle;
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	Style ls=mapEditor->getMapLinkStyle();
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	switch (ls)
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	{
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		case Line: 
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			return ls;
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			break;
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		case Parabel:
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			return ls;
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			break;
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		case PolyLine:	
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			if (depth>1)
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				return Line;
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			else	
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				return ls;
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			break;
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		case PolyParabel:	
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			if (depth>1)
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				return Parabel;
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			else	
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				return ls;
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			break;
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		default: 
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			break;	
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	}	
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	return UndefinedStyle;
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}
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void LinkableMapObj::setLinkStyle(Style newstyle)
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{
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	//if (newstyle=style) return;
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	delLink();
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	style=newstyle;
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    if (childObj!=NULL && parObj != NULL)
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    {
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		QGraphicsLineItem *cl;
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		switch (style)
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		{
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			case UndefinedStyle:
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				bottomline->hide();
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				break;
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			case Line: 
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				l = scene->addLine(QLineF(1,1,1,1),pen);
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				l->setZValue(Z_LINK);
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				if (visible)
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					l->show();
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				else
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					l->hide();
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				break;
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			case Parabel:
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				for (int i=0;i<arcsegs;i++)
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				{
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					cl = scene->addLine(QLineF(i*5,0,i*10,100),pen);
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					cl->setZValue(Z_LINK);
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					if (visible)
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						cl->show();
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					else
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						cl->hide();
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					segment.append(cl);
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				}
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				pa0.resize (arcsegs+1);
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				break;
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			case PolyLine:	
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				p =scene->addPolygon(QPolygonF(),pen,linkcolor);
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				p->setZValue(Z_LINK);
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				if (visible)
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					p->show();
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				else
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					p->hide();
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				pa0.resize (3);
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				break;
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			case PolyParabel:	
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				p = scene->addPolygon(QPolygonF(),pen,linkcolor);
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				p->setZValue(Z_LINK);
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				if (visible)
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					p->show();
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				else
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					p->hide();
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				pa0.resize (arcsegs*2+2);
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				pa1.resize (arcsegs+1);
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				pa2.resize (arcsegs+1);
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				break;
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			default: 
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				break;	
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		}	
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	} 
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}
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LinkableMapObj::Style LinkableMapObj::getLinkStyle()
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{
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	return style;
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}
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void LinkableMapObj::setHideLinkUnselected(bool b)
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{
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	hideLinkUnselected=b;
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	setVisibility (visible);
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	updateLink();
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}
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bool LinkableMapObj::getHideLinkUnselected()
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{
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	return hideLinkUnselected;
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}
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void LinkableMapObj::setLinkPos(Position lp)
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{
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	linkpos=lp;
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}
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LinkableMapObj::Position LinkableMapObj::getLinkPos()
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{
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	return linkpos;
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}
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void LinkableMapObj::setID (const QString &s)
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{
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	objID=s;
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}
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QString LinkableMapObj::getID()
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{
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	return objID;
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}
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void LinkableMapObj::setLinkColor()
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{
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	// Overloaded in BranchObj and childs
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	// here only set default color
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	if (mapEditor)
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		setLinkColor (mapEditor->getMapDefLinkColor());
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}
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void LinkableMapObj::setLinkColor(QColor col)
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{
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	linkcolor=col;
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	pen.setColor(col);
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    bottomline->setPen( pen );
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	switch (style)
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	{
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		case Line:
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			l->setPen( pen);
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			break;	
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		case Parabel:	
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			for (int i=0; i<segment.size(); ++i)
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				segment.at(i)->setPen( pen);
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			break;
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		case PolyLine:
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			p->setBrush( QBrush(col));
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			p->setPen( pen);
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			break;
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		case PolyParabel:	
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			p->setBrush( QBrush(col));
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			p->setPen( pen);
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			break;
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		default:
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			break;
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	} // switch (style)	
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}
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QColor LinkableMapObj::getLinkColor()
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{
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	return linkcolor;
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}
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void LinkableMapObj::setVisibility (bool v)
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{
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	MapObj::setVisibility (v);
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	bool visnow=visible;
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	// We can hide the link, while object is not selected
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	if (hideLinkUnselected && !selected)
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		visnow=false;
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	if (visnow) 
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	{
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		bottomline->show();
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		switch (style)
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		{
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			case Line:
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				if (l) l->show();
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				break;
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			case Parabel:	
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				for (int i=0; i<segment.size(); ++i)
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					segment.at(i)->show();
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				break;	
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			case PolyLine:
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				if (p) p->show();
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				break;
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			case PolyParabel:	
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				if (p) p->show();
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				break;
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			default:
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				break;
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		}
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	} else 
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	{
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		bottomline->hide();
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		switch (style)
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		{
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			case Line:
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				if (l) l->hide();
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				break;
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			case Parabel:	
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				for (int i=0; i<segment.size(); ++i)
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					segment.at(i)->hide();
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				break;	
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			case PolyLine:
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				if (p) p->hide();
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				break;
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			case PolyParabel:	
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				if (p) p->hide();
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				break;
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			default:
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				break;
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		}
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	}	
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}
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void LinkableMapObj::setOrientation()
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{
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	Orientation orientOld=orientation;
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	if (!parObj) 
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	{
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		orientation=UndefinedOrientation;
insilmaril@388
   411
		return;
insilmaril@388
   412
	}
insilmaril@388
   413
		
insilmaril@388
   414
    // Set orientation, first look for orientation of parent
insilmaril@473
   415
    if (parObj->getOrientation() != UndefinedOrientation ) 
insilmaril@388
   416
		// use the orientation of the parent:
insilmaril@388
   417
		orientation=parObj->getOrientation();
insilmaril@388
   418
    else
insilmaril@388
   419
    {
insilmaril@388
   420
		// calc orientation depending on position rel to parent
insilmaril@408
   421
		if (absPos.x() < QPointF(parObj->getChildPos() ).x() )
insilmaril@473
   422
			orientation=LeftOfCenter; 
insilmaril@388
   423
		else
insilmaril@473
   424
			orientation=RightOfCenter;
insilmaril@388
   425
    }
insilmaril@388
   426
	if (orientOld!=orientation) requestReposition();
insilmaril@388
   427
}
insilmaril@388
   428
insilmaril@0
   429
void LinkableMapObj::updateLink()
insilmaril@0
   430
{
insilmaril@0
   431
    // needs:
insilmaril@0
   432
    //	childPos of parent
insilmaril@0
   433
    //	orient   of parent
insilmaril@0
   434
    //	style
insilmaril@0
   435
    // 
insilmaril@0
   436
    // sets:
insilmaril@0
   437
    //	orientation
insilmaril@225
   438
    //	childPos	(by calling setDockPos())
insilmaril@225
   439
    //	parPos		(by calling setDockPos())
insilmaril@175
   440
	//  bottomlineY
insilmaril@0
   441
    //	drawing of the link itself
insilmaril@0
   442
insilmaril@0
   443
	// updateLink is called from move, but called from constructor we don't
insilmaril@0
   444
	// have parents yet...
insilmaril@473
   445
	if (style==UndefinedStyle) return;	
insilmaril@0
   446
insilmaril@0
   447
	switch (linkpos)
insilmaril@0
   448
	{
insilmaril@473
   449
		case Middle:
insilmaril@442
   450
			bottomlineY=bbox.top() + bbox.height()/2;	// draw link to middle (of frame)
insilmaril@0
   451
			break;
insilmaril@473
   452
		case Bottom:
insilmaril@225
   453
			bottomlineY=bbox.bottom()-1;	// draw link to bottom of box
insilmaril@0
   454
			break;
insilmaril@0
   455
	}
insilmaril@0
   456
	
insilmaril@0
   457
    double p2x,p2y;								// Set P2 Before setting
insilmaril@0
   458
	if (!link2ParPos)
insilmaril@0
   459
	{
insilmaril@408
   460
		p2x=QPointF( parObj->getChildPos() ).x();	// P1, we have to look at
insilmaril@408
   461
		p2y=QPointF( parObj->getChildPos() ).y();	// orientation
insilmaril@0
   462
	} else	
insilmaril@0
   463
	{
insilmaril@408
   464
		p2x=QPointF( parObj->getParPos() ).x();	
insilmaril@408
   465
		p2y=QPointF( parObj->getParPos() ).y();
insilmaril@0
   466
	} 
insilmaril@0
   467
insilmaril@388
   468
	setDockPos(); // Call overloaded method
insilmaril@393
   469
	setOrientation();
insilmaril@0
   470
insilmaril@0
   471
	double p1x=parPos.x();	// Link is drawn from P1 to P2
insilmaril@0
   472
	double p1y=parPos.y();
insilmaril@0
   473
insilmaril@0
   474
	double vx=p2x - p1x;	// V=P2-P1
insilmaril@0
   475
	double vy=p2y - p1y;
insilmaril@0
   476
insilmaril@0
   477
	// Draw the horizontal line below heading (from ChildPos to ParPos)
insilmaril@427
   478
	//bottomline->prepareGeometryChange();
insilmaril@408
   479
	bottomline->setLine (QLine (qRound(childPos.x()),
insilmaril@104
   480
		qRound(childPos.y()),
insilmaril@104
   481
		qRound(p1x),
insilmaril@408
   482
		qRound(p1y) ));
insilmaril@0
   483
insilmaril@0
   484
	double a;	// angle
insilmaril@0
   485
	if (vx > -0.000001 && vx < 0.000001)
insilmaril@0
   486
		a=M_PI_2;
insilmaril@0
   487
	else
insilmaril@0
   488
		a=atan( vy / vx );
insilmaril@0
   489
	// "turning point" for drawing polygonal links
insilmaril@408
   490
	QPointF tp (-qRound(sin (a)*thickness_start), qRound(cos (a)*thickness_start));	
insilmaril@0
   491
	
insilmaril@0
   492
    // Draw the link
insilmaril@0
   493
	switch (style)
insilmaril@0
   494
	{
insilmaril@473
   495
		case Line:
insilmaril@427
   496
			//l->prepareGeometryChange();
insilmaril@408
   497
			l->setLine( QLine(qRound (parPos.x()),
insilmaril@104
   498
				qRound(parPos.y()),
insilmaril@104
   499
				qRound(p2x),
insilmaril@408
   500
				qRound(p2y) ));
insilmaril@0
   501
			break;	
insilmaril@473
   502
		case Parabel:	
insilmaril@0
   503
			parabel (pa0, p1x,p1y,p2x,p2y);
insilmaril@406
   504
			for (int i=0; i<segment.size(); ++i)
insilmaril@427
   505
			{
insilmaril@427
   506
				//segment.at(i)->prepareGeometryChange();
insilmaril@408
   507
				segment.at(i)->setLine(QLineF( pa0.at(i).x(), pa0.at(i).y(),pa0.at(i+1).x(),pa0.at(i+1).y()));
insilmaril@427
   508
			}	
insilmaril@0
   509
			break;
insilmaril@473
   510
		case PolyLine:
insilmaril@408
   511
			pa0.clear();
insilmaril@408
   512
			pa0<<QPointF (qRound(p2x+tp.x()), qRound(p2y+tp.y()));
insilmaril@408
   513
			pa0<<QPointF (qRound(p2x-tp.x()), qRound(p2y-tp.y()));
insilmaril@408
   514
			pa0<<QPointF (qRound (parPos.x()), qRound(parPos.y()) );
insilmaril@427
   515
			//p->prepareGeometryChange();
insilmaril@408
   516
			p->setPolygon(QPolygonF (pa0));
insilmaril@0
   517
			break;
insilmaril@473
   518
		case PolyParabel:	
insilmaril@0
   519
			parabel (pa1, p1x,p1y,p2x+tp.x(),p2y+tp.y());
insilmaril@0
   520
			parabel (pa2, p1x,p1y,p2x-tp.x(),p2y-tp.y());
insilmaril@408
   521
			pa0.clear();
insilmaril@406
   522
			for (int i=0;i<=arcsegs;i++)
insilmaril@408
   523
				pa0 << QPointF (pa1.at(i));
insilmaril@408
   524
			for (int i=0;i<=arcsegs;i++)
insilmaril@408
   525
				pa0 << QPointF (pa2.at(arcsegs-i));
insilmaril@427
   526
			//p->prepareGeometryChange();
insilmaril@408
   527
			p->setPolygon(QPolygonF (pa0));
insilmaril@0
   528
			break;
insilmaril@0
   529
		default:
insilmaril@0
   530
			break;
insilmaril@0
   531
	} // switch (style)	
insilmaril@0
   532
}
insilmaril@0
   533
	
insilmaril@0
   534
LinkableMapObj* LinkableMapObj::getChildObj()
insilmaril@0
   535
{
insilmaril@0
   536
    return childObj;
insilmaril@0
   537
}
insilmaril@0
   538
insilmaril@0
   539
LinkableMapObj* LinkableMapObj::getParObj()
insilmaril@0
   540
{
insilmaril@0
   541
    return parObj;
insilmaril@0
   542
}
insilmaril@0
   543
insilmaril@106
   544
LinkableMapObj* LinkableMapObj::findObjBySelect (QString s)
insilmaril@95
   545
{
insilmaril@95
   546
	LinkableMapObj *lmo=this;
insilmaril@95
   547
	QString part;
insilmaril@95
   548
	QString typ;
insilmaril@95
   549
	QString num;
insilmaril@95
   550
	while (!s.isEmpty() )
insilmaril@95
   551
	{
insilmaril@95
   552
		part=s.section(",",0,0);
insilmaril@95
   553
		typ=part.left (3);
insilmaril@95
   554
		num=part.right(part.length() - 3);
insilmaril@95
   555
		if (typ=="mc:")
insilmaril@95
   556
		{
insilmaril@95
   557
			if (depth>0)
insilmaril@95
   558
				return false;	// in a subtree there is no center
insilmaril@95
   559
			else
insilmaril@95
   560
				break;
insilmaril@95
   561
		} else
insilmaril@95
   562
			if (typ=="bo:")
insilmaril@644
   563
				lmo=((BranchObj*)lmo)->getBranchNum (num.toInt());
insilmaril@95
   564
			else
insilmaril@95
   565
				if (typ=="fi:")
insilmaril@644
   566
					lmo=((BranchObj*)lmo)->getFloatImageNum (num.toUInt());
insilmaril@95
   567
		if (!lmo) break;
insilmaril@95
   568
		
insilmaril@95
   569
		if (s.contains(","))
insilmaril@95
   570
			s=s.right(s.length() - part.length() -1 );
insilmaril@95
   571
		else	
insilmaril@95
   572
			break;
insilmaril@95
   573
	}
insilmaril@95
   574
	return lmo;
insilmaril@95
   575
}
insilmaril@95
   576
insilmaril@408
   577
QPointF LinkableMapObj::getChildPos()
insilmaril@0
   578
{
insilmaril@0
   579
    return childPos;
insilmaril@0
   580
}
insilmaril@0
   581
insilmaril@408
   582
QPointF LinkableMapObj::getParPos()
insilmaril@0
   583
{
insilmaril@0
   584
    return parPos;
insilmaril@0
   585
}
insilmaril@0
   586
insilmaril@218
   587
void LinkableMapObj::setUseOrientation (const bool &b)
insilmaril@218
   588
{	
insilmaril@218
   589
	if (useOrientation!=b)
insilmaril@218
   590
	{
insilmaril@218
   591
		useOrientation=b;
insilmaril@218
   592
		requestReposition();
insilmaril@218
   593
	}	
insilmaril@218
   594
}
insilmaril@218
   595
insilmaril@473
   596
LinkableMapObj::Orientation LinkableMapObj::getOrientation()
insilmaril@0
   597
{
insilmaril@0
   598
    return orientation;
insilmaril@0
   599
}
insilmaril@0
   600
insilmaril@0
   601
int LinkableMapObj::getDepth()
insilmaril@0
   602
{
insilmaril@0
   603
    return depth;
insilmaril@0
   604
}
insilmaril@0
   605
insilmaril@0
   606
void LinkableMapObj::setMapEditor (MapEditor *me)
insilmaril@0
   607
{
insilmaril@0
   608
	mapEditor=me;
insilmaril@0
   609
}
insilmaril@0
   610
insilmaril@0
   611
MapEditor* LinkableMapObj::getMapEditor ()
insilmaril@0
   612
{
insilmaril@0
   613
	return mapEditor;
insilmaril@0
   614
}
insilmaril@0
   615
insilmaril@408
   616
QPointF LinkableMapObj::getRandPos()
insilmaril@0
   617
{
insilmaril@0
   618
	// Choose a random position with given distance to parent:
insilmaril@0
   619
	double a=rand()%360 * 2 * M_PI / 360;
insilmaril@408
   620
    return QPointF ( (int)( + 150*cos (a)),
insilmaril@0
   621
                    (int)( + 150*sin (a)));
insilmaril@0
   622
}
insilmaril@0
   623
insilmaril@0
   624
void LinkableMapObj::reposition()
insilmaril@0
   625
{
insilmaril@0
   626
}
insilmaril@0
   627
insilmaril@0
   628
void LinkableMapObj::requestReposition()
insilmaril@0
   629
{
insilmaril@0
   630
	if (!repositionRequest)
insilmaril@0
   631
	{
insilmaril@0
   632
		// Pass on the request to parental objects, if this hasn't
insilmaril@0
   633
		// been done yet
insilmaril@0
   634
		repositionRequest=true;
insilmaril@0
   635
		if (parObj) parObj->requestReposition();
insilmaril@0
   636
	}
insilmaril@0
   637
}
insilmaril@0
   638
insilmaril@0
   639
void LinkableMapObj::forceReposition()
insilmaril@0
   640
{
insilmaril@0
   641
	// Sometimes a reposition has to be done immediatly: For example
insilmaril@0
   642
	// if the note editor flag changes, there is no user event in mapeditor
insilmaril@0
   643
	// which could collect requests for a reposition.
insilmaril@0
   644
	// Then we have to call forceReposition()
insilmaril@0
   645
	// But no rule without exception: While loading a map or undoing it,
insilmaril@0
   646
	// we want to block expensive repositioning, but just do it once at
insilmaril@0
   647
	// the end, thus check first:
insilmaril@0
   648
insilmaril@139
   649
	if (mapEditor->isRepositionBlocked()) return;
insilmaril@0
   650
	
insilmaril@0
   651
	// Pass on the request to parental objects, if this hasn't been done yet
insilmaril@0
   652
	
insilmaril@0
   653
	if (parObj) 
insilmaril@0
   654
		parObj->forceReposition(); 
insilmaril@0
   655
	else 
insilmaril@83
   656
		reposition(); 
insilmaril@83
   657
}
insilmaril@0
   658
insilmaril@0
   659
bool LinkableMapObj::repositionRequested()
insilmaril@0
   660
{
insilmaril@0
   661
	return repositionRequest;
insilmaril@0
   662
}
insilmaril@0
   663
insilmaril@0
   664
insilmaril@0
   665
void LinkableMapObj::select()
insilmaril@0
   666
{
insilmaril@473
   667
	// select and unselect are still needed to
insilmaril@473
   668
	// handle hiding of links
insilmaril@0
   669
    selected=true;
insilmaril@261
   670
	setVisibility (visible);
insilmaril@0
   671
}
insilmaril@0
   672
insilmaril@0
   673
insilmaril@0
   674
void LinkableMapObj::unselect()
insilmaril@0
   675
{
insilmaril@0
   676
    selected=false;
insilmaril@261
   677
	// Maybe we have to hide the link:
insilmaril@261
   678
	setVisibility (visible);
insilmaril@0
   679
}
insilmaril@0
   680
insilmaril@408
   681
void LinkableMapObj::parabel (QPolygonF &ya, double p1x, double p1y, double p2x, double p2y)
insilmaril@0
   682
insilmaril@0
   683
{
insilmaril@0
   684
	double vx=p2x - p1x;	// V=P2-P1
insilmaril@0
   685
	double vy=p2y - p1y;
insilmaril@0
   686
insilmaril@0
   687
	double dx;				// delta x during calculation of parabel
insilmaril@0
   688
	
insilmaril@0
   689
	double pnx;				// next point
insilmaril@0
   690
	double pny;
insilmaril@0
   691
	double m;
insilmaril@0
   692
insilmaril@0
   693
	if (vx > -0.0001 && vx < 0.0001)
insilmaril@0
   694
		m=0;
insilmaril@0
   695
	else	
insilmaril@0
   696
		m=(vy / (vx*vx));
insilmaril@0
   697
	dx=vx/(arcsegs);
insilmaril@408
   698
	ya.clear();
insilmaril@579
   699
	ya<<QPointF (p1x,p1y);
insilmaril@408
   700
	for (int i=1;i<=arcsegs;i++)
insilmaril@0
   701
	{	
insilmaril@0
   702
		pnx=p1x+dx;
insilmaril@0
   703
		pny=m*(pnx-parPos.x())*(pnx-parPos.x())+parPos.y();
insilmaril@579
   704
		ya<<QPointF (pnx,pny);
insilmaril@0
   705
		p1x=pnx;
insilmaril@0
   706
		p1y=pny;
insilmaril@0
   707
	}	
insilmaril@0
   708
}
insilmaril@0
   709
insilmaril@160
   710
QString LinkableMapObj::getLinkAttr ()
insilmaril@160
   711
{
insilmaril@160
   712
	if (hideLinkUnselected)
insilmaril@175
   713
		return attribut ("hideLink","true");
insilmaril@160
   714
	else
insilmaril@175
   715
		return attribut ("hideLink","false");
insilmaril@160
   716
	
insilmaril@160
   717
}
insilmaril@473
   718