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linkablemapobj.cpp
author insilmaril
Tue Feb 21 16:18:23 2006 +0000 (2006-02-21)
changeset 217 375be2baa976
parent 166 325958acb69b
child 218 160459d924a1
permissions -rw-r--r--
rudimentary mmap import 
     1 #include <math.h>

     2 

     3 #include "linkablemapobj.h"

     4 #include "branchobj.h"

     5 #include "mapeditor.h"

     6 

     7 #include "version.h"

     8 

     9 

    10 /////////////////////////////////////////////////////////////////

    11 // LinkableMapObj

    12 /////////////////////////////////////////////////////////////////

    13 

    14 LinkableMapObj::LinkableMapObj():MapObj()

    15 {

    16   //  cout << "Const LinkableMapObj ()\n";

    17     init ();

    18 }

    19 

    20 LinkableMapObj::LinkableMapObj(QCanvas* c) :MapObj(c)

    21 {

    22 //    cout << "Const LinkableMapObj\n";

    23     init ();

    24 }

    25 

    26 LinkableMapObj::LinkableMapObj (LinkableMapObj* lmo) : MapObj (lmo->canvas)

    27 {

    28     copy (lmo);

    29 }

    30 

    31 LinkableMapObj::~LinkableMapObj()

    32 {

    33     delete (bottomline);

    34     delete (selbox);

    35 	delete (frame);

    36 	delLink();

    37 }

    38 

    39 void LinkableMapObj::delLink()

    40 {

    41 	switch (style)

    42 	{

    43 		case StyleLine:

    44 			delete (l);

    45 			break;

    46 		case StyleParabel:

    47 			segment.clear();

    48 			break;

    49 		case StylePolyLine:

    50 			delete (p);

    51 			delete (l);

    52 			break;

    53 		case StylePolyParabel:

    54 			delete (p);

    55 			segment.clear();

    56 			break;

    57 		default:

    58 			break;

    59 	}		

    60 }

    61 

    62 void LinkableMapObj::init ()

    63 {

    64     depth=-1;	

    65 	mapEditor=NULL;

    66     childObj=NULL;

    67     parObj=NULL;

    68     parObjTmpBuf=NULL;

    69     parPos=QPoint(0,0);

    70     childPos=QPoint(0,0);

    71 	link2ParPos=false;

    72     l=NULL;

    73     orientation=OrientUndef;

    74     linkwidth=20;		

    75 	thickness_start=8;

    76     style=StyleUndef;

    77 	linkpos=LinkBottom;

    78     segment.setAutoDelete (TRUE);

    79     arcsegs=13;

    80 	QPointArray pa(arcsegs*2+2);

    81     

    82     bottomline=new QCanvasLine(canvas);

    83     bottomline->setPen( QPen(linkcolor, 1) );

    84     bottomline->setZ(Z_LINK);

    85     bottomline->show();

    86 

    87     // Prepare showing the selection of a MapObj

    88     selbox = new QCanvasRectangle (canvas);

    89     selbox->setZ(Z_SELBOX);

    90     selbox->setBrush( QColor(255,255,0) );

    91     selbox->setPen( QPen(QColor(255,255,0) ));

    92     selbox->hide();

    93     selected=false;

    94 

    95 	hideLinkUnselected=false;

    96 

    97 	topPad=botPad=leftPad=rightPad=0;

    98 

    99 	// initialize frame

   100 	frame = new FrameObj (canvas);

   101 	

   102 	repositionRequest=false;

   103 }

   104 

   105 void LinkableMapObj::copy (LinkableMapObj* other)

   106 {

   107     MapObj::copy(other);

   108 	bboxTotal=other->bboxTotal;

   109     setLinkStyle(other->style);

   110     setLinkColor (other->linkcolor);

   111 }

   112 

   113 void LinkableMapObj::setChildObj(LinkableMapObj* o)

   114 {

   115     childObj=o;

   116 }

   117 

   118 void LinkableMapObj::setParObj(LinkableMapObj* o)

   119 {

   120     parObj=o;

   121 	mapEditor=parObj->getMapEditor();

   122 }

   123 

   124 void LinkableMapObj::setParObjTmp(LinkableMapObj*,QPoint,int)

   125 {

   126 }

   127 

   128 void LinkableMapObj::unsetParObjTmp()

   129 {

   130 }

   131 

   132 bool LinkableMapObj::hasParObjTmp()

   133 {

   134 	if (parObjTmpBuf) return true;

   135 	return false;

   136 }

   137 

   138 int LinkableMapObj::getTopPad()

   139 {

   140 	return topPad;

   141 }

   142 

   143 int LinkableMapObj::getLeftPad()

   144 {

   145 	return leftPad;

   146 }

   147 

   148 int LinkableMapObj::getRightPad()

   149 {

   150 	return rightPad;

   151 }

   152 

   153 LinkStyle LinkableMapObj::getDefLinkStyle ()

   154 {

   155 	if (!mapEditor) return StyleUndef;

   156 

   157 	LinkStyle ls=mapEditor->getLinkStyle();

   158 	switch (ls)

   159 	{

   160 		case StyleLine: 

   161 			return ls;

   162 			break;

   163 		case StyleParabel:

   164 			return ls;

   165 			break;

   166 		case StylePolyLine:	

   167 			if (depth>1)

   168 				return StyleLine;

   169 			else	

   170 				return ls;

   171 			break;

   172 		case StylePolyParabel:	

   173 			if (depth>1)

   174 				return StyleParabel;

   175 			else	

   176 				return ls;

   177 			break;

   178 		default: 

   179 			break;	

   180 	}	

   181 	return StyleUndef;

   182 }

   183 

   184 void LinkableMapObj::setLinkStyle(LinkStyle newstyle)

   185 {

   186 	//if (newstyle=style) return;

   187 	delLink();

   188 		

   189 	style=newstyle;

   190 

   191     if (childObj!=NULL && parObj != NULL)

   192     {

   193 		int i;

   194 		QCanvasLine* cl;

   195 		switch (style)

   196 		{

   197 			case StyleUndef:

   198 				bottomline->hide();

   199 				break;

   200 			case StyleLine: 

   201 				l = new QCanvasLine(canvas);

   202 				l->setPen( QPen(linkcolor, 1) );

   203 				l->setZ(Z_LINK);

   204 				if (visible)

   205 					l->show();

   206 				else

   207 					l->hide();

   208 				break;

   209 			case StyleParabel:

   210 				for (i=0;i<arcsegs;i++)

   211 				{

   212 					cl = new QCanvasLine(canvas);

   213 					cl->setPen( QPen(linkcolor, 1) );

   214 					cl->setPoints( 0,0,i*10,100);

   215 					cl->setZ(Z_LINK);

   216 					if (visible)

   217 						cl->show();

   218 					else

   219 						cl->hide();

   220 					segment.append(cl);

   221 				}

   222 				pa0.resize (arcsegs+1);

   223 				break;

   224 			case StylePolyLine:	

   225 				p = new QCanvasPolygon(canvas);

   226 				p->setBrush( linkcolor );

   227 				p->setZ(Z_LINK);

   228 				if (visible)

   229 					p->show();

   230 				else

   231 					p->hide();

   232 				pa0.resize (3);

   233 				// TODO a bit awkward: draw the lines additionally to polygon, to avoid

   234 				// missing pixels, when polygon is extremly flat

   235 				l = new QCanvasLine(canvas);

   236 				l->setPen( QPen(linkcolor, 1) );

   237 				l->setZ(Z_LINK);

   238 				if (visible)

   239 					l->show();

   240 				else

   241 					l->hide();

   242 				break;

   243 			case StylePolyParabel:	

   244 				p = new QCanvasPolygon(canvas);

   245 				p->setBrush( linkcolor );

   246 				p->setZ(Z_LINK);

   247 				if (visible)

   248 					p->show();

   249 				else

   250 					p->hide();

   251 				pa0.resize (arcsegs*2+2);

   252 				pa1.resize (arcsegs+1);

   253 				pa2.resize (arcsegs+1);

   254 

   255 				// TODO a bit awkward: draw the lines additionally 

   256 				// to polygon, to avoid missing pixels, 

   257 				// if polygon is extremly flat

   258 				for (i=0;i<arcsegs;i++)

   259 				{

   260 					cl = new QCanvasLine(canvas);

   261 					cl->setPen( QPen(linkcolor, 1) );

   262 					cl->setPoints( 0,0,i*10,100);

   263 					cl->setZ(Z_LINK);

   264 					if (visible)

   265 						cl->show();

   266 					else

   267 						cl->hide();

   268 					segment.append(cl);

   269 				}

   270 				break;

   271 			default: 

   272 				break;	

   273 		}	

   274 	} 

   275 }

   276 

   277 LinkStyle LinkableMapObj::getLinkStyle()

   278 {

   279 	return style;

   280 }

   281 

   282 void LinkableMapObj::setHideLinkUnselected(bool b)

   283 {

   284 	hideLinkUnselected=b;

   285 	setVisibility (visible);

   286 	updateLink();

   287 }

   288 

   289 bool LinkableMapObj::getHideLinkUnselected()

   290 {

   291 	return hideLinkUnselected;

   292 }

   293 

   294 void LinkableMapObj::setLinkPos(LinkPos lp)

   295 {

   296 	linkpos=lp;

   297 }

   298 

   299 LinkPos LinkableMapObj::getLinkPos()

   300 {

   301 	return linkpos;

   302 }

   303 

   304 

   305 void LinkableMapObj::setLinkColor()

   306 {

   307 	// Overloaded in BranchObj and childs

   308 	// here only set default color

   309 	if (mapEditor)

   310 		setLinkColor (mapEditor->getDefLinkColor());

   311 }

   312 

   313 void LinkableMapObj::setLinkColor(QColor col)

   314 {

   315 	linkcolor=col;

   316     bottomline->setPen( QPen(linkcolor, 1) );

   317 	QCanvasLine *cl;

   318 	switch (style)

   319 	{

   320 		case StyleLine:

   321 			l->setPen( QPen(col,1));

   322 			break;	

   323 		case StyleParabel:	

   324 			for (cl=segment.first(); cl; cl=segment.next() )

   325 				cl->setPen( QPen(col,1));

   326 			break;

   327 		case StylePolyLine:

   328 			p->setBrush( QBrush(col));

   329 			l->setPen( QPen(col,1));

   330 			break;

   331 		case StylePolyParabel:	

   332 			p->setBrush( QBrush(col));

   333 			for (cl=segment.first(); cl; cl=segment.next() )

   334 				cl->setPen( QPen(col,1));

   335 			break;

   336 		default:

   337 			break;

   338 	} // switch (style)	

   339 }

   340 

   341 QColor LinkableMapObj::getLinkColor()

   342 {

   343 	return linkcolor;

   344 }

   345 

   346 FrameType LinkableMapObj::getFrameType()

   347 {

   348 	return frame->getFrameType();

   349 }

   350 

   351 void LinkableMapObj::setFrameType(const FrameType &t)

   352 {

   353 	frame->setFrameType(t);

   354 	calcBBoxSize();

   355 	positionBBox();

   356 	requestReposition();

   357 }

   358 

   359 void LinkableMapObj::setFrameType(const QString &t)

   360 {

   361 	frame->setFrameType(t);

   362 	calcBBoxSize();

   363 	positionBBox();

   364 	requestReposition();

   365 }

   366 

   367 void LinkableMapObj::setVisibility (bool v)

   368 {

   369 	QCanvasLine* cl;

   370 	MapObj::setVisibility (v);

   371 	bool visnow=visible;

   372 	if (hideLinkUnselected && !selected)

   373 		visnow=false;

   374 

   375 	if (visnow) 

   376 	{

   377 		bottomline->show();

   378 		switch (style)

   379 		{

   380 			case StyleLine:

   381 				if (l) l->show();

   382 				break;

   383 			case StyleParabel:	

   384 				for (cl=segment.first(); cl; cl=segment.next() )

   385 					cl->show();

   386 				break;	

   387 			case StylePolyLine:

   388 				if (p) p->show();

   389 				if (l) l->show();

   390 				break;

   391 			case StylePolyParabel:	

   392 				for (cl=segment.first(); cl; cl=segment.next() )

   393 					cl->show();

   394 				if (p) p->show();

   395 				break;

   396 			default:

   397 				break;

   398 		}

   399 	} else 

   400 	{

   401 		bottomline->hide();

   402 		switch (style)

   403 		{

   404 			case StyleLine:

   405 				if (l) l->hide();

   406 				break;

   407 			case StyleParabel:	

   408 				for (cl=segment.first(); cl; cl=segment.next() )

   409 					cl->hide();

   410 				break;	

   411 			case StylePolyLine:

   412 				if (p) p->hide();

   413 				if (l) l->hide();

   414 				break;

   415 			case StylePolyParabel:	

   416 				for (cl=segment.first(); cl; cl=segment.next() )

   417 					cl->hide();

   418 				if (p) p->hide();

   419 				break;

   420 			default:

   421 				break;

   422 		}

   423 	}	

   424 }

   425 

   426 void LinkableMapObj::updateLink()

   427 {

   428     // needs:

   429     //	childPos of parent

   430     //	orient   of parent

   431     //	style

   432     // 

   433     // sets:

   434     //	orientation

   435     //	childPos

   436     //	parPos

   437 	//  bottomlineY

   438     //	drawing of the link itself

   439 

   440 

   441 	// updateLink is called from move, but called from constructor we don't

   442 	// have parents yet...

   443 	if (style==StyleUndef) return;	

   444 

   445 	if (frame->getFrameType() == NoFrame)

   446 		linkpos=LinkBottom;

   447 	else	

   448 		linkpos=LinkMiddle;

   449 	switch (linkpos)

   450 	{

   451 		case LinkMiddle:

   452 			bottomlineY=clickBox.top()+clickBox.height() /2;	// draw link to middle (of frame)

   453 			break;

   454 		default :

   455 			bottomlineY=clickBox.bottom()-1;	// draw link to bottom of bbox

   456 			break;

   457 	}

   458 	

   459     double p2x,p2y;								// Set P2 Before setting

   460 	if (!link2ParPos)

   461 	{

   462 		p2x=QPoint( parObj->getChildPos() ).x();	// P1, we have to look at

   463 		p2y=QPoint( parObj->getChildPos() ).y();	// orientation

   464 	} else	

   465 	{

   466 		p2x=QPoint( parObj->getParPos() ).x();	

   467 		p2y=QPoint( parObj->getParPos() ).y();

   468 	} 

   469 

   470 	LinkOrient orientOld=orientation;

   471 

   472     // Set orientation, first look for orientation of parent

   473     if (parObj->getOrientation() != OrientUndef ) 

   474 		// use the orientation of the parent:

   475 		orientation=parObj->getOrientation();

   476     else

   477     {

   478 		// calc orientation depending on position rel to mapCenter

   479 		if (absPos.x() < QPoint(parObj->getChildPos() ).x() )

   480 			orientation=OrientLeftOfCenter; 

   481 		else

   482 			orientation=OrientRightOfCenter;

   483     }

   484 

   485 	if ((orientation!=orientOld) && (orientOld!= OrientUndef))

   486 	{

   487 		// Orientation just changed. Reorient this subbranch, because move is called

   488 		// before updateLink => Position is still the old one, which could lead to 

   489 		// linking of subranch to itself => segfault

   490 		//

   491 		// Also possible: called in BranchObj::init(), then orientOld==OrientUndef,

   492 		// no need to reposition now

   493 		reposition();

   494 	}

   495 	

   496     if (orientation==OrientLeftOfCenter )

   497     {

   498 		childPos=QPoint (absPos.x(),bottomlineY);

   499 		parPos=QPoint (absPos.x()+ bbox.width(),  bottomlineY );

   500     } else

   501     {

   502 		childPos=QPoint (absPos.x()+ bbox.width(), bottomlineY ); 

   503 		parPos=QPoint (absPos.x(),bottomlineY);

   504     }

   505 

   506 	double p1x=parPos.x();	// Link is drawn from P1 to P2

   507 	double p1y=parPos.y();

   508 

   509 	double vx=p2x - p1x;	// V=P2-P1

   510 	double vy=p2y - p1y;

   511 

   512 	// Draw the horizontal line below heading (from ChildPos to ParPos)

   513 	bottomline->setPoints (qRound(childPos.x()),

   514 		qRound(childPos.y()),

   515 		qRound(p1x),

   516 		qRound(p1y) );

   517 

   518 	double a;	// angle

   519 	if (vx > -0.000001 && vx < 0.000001)

   520 		a=M_PI_2;

   521 	else

   522 		a=atan( vy / vx );

   523 	// "turning point" for drawing polygonal links

   524 	QPoint tp (-qRound(sin (a)*thickness_start), qRound(cos (a)*thickness_start));	

   525 	

   526 	QCanvasLine *cl;

   527 

   528 	int i;

   529 

   530     // Draw the link

   531 	switch (style)

   532 	{

   533 		case StyleLine:

   534 			l->setPoints( qRound (parPos.x()),

   535 				qRound(parPos.y()),

   536 				qRound(p2x),

   537 				qRound(p2y) );

   538 			break;	

   539 		case StyleParabel:	

   540 			parabel (pa0, p1x,p1y,p2x,p2y);

   541 			i=0;

   542 			for (cl=segment.first(); cl; cl=segment.next() )

   543 			{	

   544 				cl->setPoints( pa0.point(i).x(), pa0.point(i).y(),pa0.point(i+1).x(),pa0.point(i+1).y());

   545 				i++;

   546 			}

   547 			break;

   548 		case StylePolyLine:

   549 			pa0[0]=QPoint (qRound(p2x+tp.x()), qRound(p2y+tp.y()));

   550 			pa0[1]=QPoint (qRound(p2x-tp.x()), qRound(p2y-tp.y()));

   551 			pa0[2]=QPoint (qRound (parPos.x()), qRound(parPos.y()) );

   552 			p->setPoints (pa0);

   553 			// here too, draw line to avoid missing pixels

   554 			l->setPoints( qRound (parPos.x()),

   555 				qRound(parPos.y()),

   556 				qRound(p2x),

   557 				qRound(p2y) );

   558 			break;

   559 		case StylePolyParabel:	

   560 			parabel (pa1, p1x,p1y,p2x+tp.x(),p2y+tp.y());

   561 			parabel (pa2, p1x,p1y,p2x-tp.x(),p2y-tp.y());

   562 			for (i=0;i<=arcsegs;i++)

   563 			{

   564 				// Combine the arrays to a single one

   565 				pa0[i]=pa1[i];

   566 				pa0[i+arcsegs+1]=pa2[arcsegs-i];

   567 			}	

   568 			p->setPoints (pa0);

   569 			i=0;

   570 			for (cl=segment.first(); cl; cl=segment.next() )

   571 			{	

   572 				cl->setPoints( pa1.point(i).x(), pa1.point(i).y(),pa1.point(i+1).x(),pa1.point(i+1).y());

   573 				i++;

   574 			}

   575 			break;

   576 		default:

   577 			break;

   578 	} // switch (style)	

   579 }

   580 	

   581 LinkableMapObj* LinkableMapObj::getChildObj()

   582 {

   583     return childObj;

   584 }

   585 

   586 LinkableMapObj* LinkableMapObj::getParObj()

   587 {

   588     return parObj;

   589 }

   590 

   591 LinkableMapObj* LinkableMapObj::findObjBySelect (QString s)

   592 {

   593 	LinkableMapObj *lmo=this;

   594 	QString part;

   595 	QString typ;

   596 	QString num;

   597 	while (!s.isEmpty() )

   598 	{

   599 		part=s.section(",",0,0);

   600 		typ=part.left (3);

   601 		num=part.right(part.length() - 3);

   602 		if (typ=="mc:")

   603 		{

   604 			if (depth>0)

   605 				return false;	// in a subtree there is no center

   606 			else

   607 				break;

   608 		} else

   609 			if (typ=="bo:")

   610 				lmo=((BranchObj*)(lmo))->getBranchNum (num.toUInt());

   611 			else

   612 				if (typ=="fi:")

   613 					lmo=((BranchObj*)(lmo))->getFloatImageNum (num.toUInt());

   614 		if (!lmo) break;

   615 		

   616 		if (s.contains(","))

   617 			s=s.right(s.length() - part.length() -1 );

   618 		else	

   619 			break;

   620 	}

   621 	return lmo;

   622 }

   623 

   624 QPoint LinkableMapObj::getChildPos()

   625 {

   626     return childPos;

   627 }

   628 

   629 QPoint LinkableMapObj::getParPos()

   630 {

   631     return parPos;

   632 }

   633 

   634 QPoint LinkableMapObj::getRelPos()

   635 {

   636 	if (!parObj) return QPoint (0,0);

   637     return QPoint(

   638 		absPos.x() - parObj->x(),

   639 		absPos.y() - parObj->y()

   640 	);

   641 }

   642 

   643 LinkOrient LinkableMapObj::getOrientation()

   644 {

   645     return orientation;

   646 }

   647 

   648 int LinkableMapObj::getDepth()

   649 {

   650     return depth;

   651 }

   652 

   653 void LinkableMapObj::setMapEditor (MapEditor *me)

   654 {

   655 	mapEditor=me;

   656 }

   657 

   658 MapEditor* LinkableMapObj::getMapEditor ()

   659 {

   660 	return mapEditor;

   661 }

   662 

   663 QPoint LinkableMapObj::getRandPos()

   664 {

   665 	// Choose a random position with given distance to parent:

   666 	double a=rand()%360 * 2 * M_PI / 360;

   667     return QPoint ( (int)( + 150*cos (a)),

   668                     (int)( + 150*sin (a)));

   669 }

   670 

   671 void LinkableMapObj::alignRelativeTo (QPoint ref)

   672 {

   673 	// FIXME testing, seems not to be used right now...

   674 	cout << "LMO::alignRelTo   ref="<<ref<<endl;

   675 }

   676 

   677 void LinkableMapObj::reposition()

   678 {

   679 	if (depth==0)

   680 	{

   681 		// only calculate the sizes once. If the deepest LMO changes its height,

   682 		// all upper LMOs have to change, too.

   683 		calcBBoxSizeWithChilds();

   684 

   685 	    alignRelativeTo ( QPoint (absPos.x(),

   686 							absPos.y()-(bboxTotal.height()-bbox.height())/2) );

   687 	} else

   688 	{

   689 		// This is only important for moving branches:

   690 		// For editing a branch it isn't called...

   691 	    alignRelativeTo ( QPoint (absPos.x(),

   692 							absPos.y()-(bboxTotal.height()-bbox.height())/2) );

   693 	}

   694 }

   695 

   696 void LinkableMapObj::requestReposition()

   697 {

   698 	if (!repositionRequest)

   699 	{

   700 		// Pass on the request to parental objects, if this hasn't

   701 		// been done yet

   702 		repositionRequest=true;

   703 		if (parObj) parObj->requestReposition();

   704 	}

   705 }

   706 

   707 void LinkableMapObj::forceReposition()

   708 {

   709 	// Sometimes a reposition has to be done immediatly: For example

   710 	// if the note editor flag changes, there is no user event in mapeditor

   711 	// which could collect requests for a reposition.

   712 	// Then we have to call forceReposition()

   713 	// But no rule without exception: While loading a map or undoing it,

   714 	// we want to block expensive repositioning, but just do it once at

   715 	// the end, thus check first:

   716 

   717 	if (mapEditor->isRepositionBlocked()) return;

   718 	

   719 	// Pass on the request to parental objects, if this hasn't been done yet

   720 	

   721 	if (parObj) 

   722 		parObj->forceReposition(); 

   723 	else 

   724 		reposition(); 

   725 }

   726 

   727 bool LinkableMapObj::repositionRequested()

   728 {

   729 	return repositionRequest;

   730 }

   731 

   732 

   733 void LinkableMapObj::setSelBox()

   734 {

   735     selbox->setX (clickBox.x() );

   736     selbox->setY (clickBox.y() );

   737     selbox->setSize (clickBox.width(), clickBox.height() );

   738 }

   739 

   740 void LinkableMapObj::select()

   741 {

   742 	setSelBox();

   743     selected=true;

   744     selbox->show();

   745 	setVisibility (visible);

   746 }

   747 

   748 

   749 void LinkableMapObj::unselect()

   750 {

   751     selected=false;

   752     selbox->hide();

   753 	setVisibility (visible);

   754 }

   755 

   756 void LinkableMapObj::parabel (QPointArray &ya, double p1x, double p1y, double p2x, double p2y)

   757 

   758 {

   759 	double vx=p2x - p1x;	// V=P2-P1

   760 	double vy=p2y - p1y;

   761 

   762 	double dx;				// delta x during calculation of parabel

   763 	

   764 	double pnx;				// next point

   765 	double pny;

   766 	double m;

   767 

   768 	if (vx > -0.0001 && vx < 0.0001)

   769 		m=0;

   770 	else	

   771 		m=(vy / (vx*vx));

   772 	dx=vx/(arcsegs);

   773 	int i;

   774 	ya.setPoint (0,QPoint (qRound(p1x),qRound(p1y)));

   775 	for (i=1;i<=arcsegs;i++)

   776 	{	

   777 		pnx=p1x+dx;

   778 		pny=m*(pnx-parPos.x())*(pnx-parPos.x())+parPos.y();

   779 		ya.setPoint (i,QPoint (qRound(pnx),qRound(pny)));

   780 		p1x=pnx;

   781 		p1y=pny;

   782 	}	

   783 }

   784 

   785 QString LinkableMapObj::getLinkAttr ()

   786 {

   787 	if (hideLinkUnselected)

   788 		return attribut ("hideLink","true");

   789 	else

   790 		return attribut ("hideLink","false");

   791 	

   792 }
vym