#include "branchobj.h"

#include "branchitem.h"

#include "geometry.h"

#include "mapeditor.h"

#include "mainwindow.h"

#include "misc.h"

//class TextEditor; //FIXME-3

//extern TextEditor *textEditor;

//extern Main *mainWindow;

//extern FlagRowObj *standardFlagsDefault;

/////////////////////////////////////////////////////////////////

// BranchObj

/////////////////////////////////////////////////////////////////

BranchObj::BranchObj () :OrnamentedObj()	// FIXME-3 needed at all?

{

//    cout << "Const BranchObj ()\n";

    setParObj (this);	

    init();

    depth=-1;

}

BranchObj::BranchObj (QGraphicsScene* s):OrnamentedObj (s)

{

//    cout << "Const BranchObj (s)  called from MapCenterObj (s)\n";

	parObj=NULL;

    scene=s;

}

BranchObj::BranchObj (QGraphicsScene* s, LinkableMapObj* p):OrnamentedObj (s)

{

//    cout << "Const BranchObj (s,p)\n";

    scene=s;

    setParObj (p);	

    depth=p->getDepth()+1;

	if (depth==1)

		// Calc angle to mapCenter if I am a mainbranch

		// needed for reordering the mainbranches clockwise 

		// around mapcenter 

		angle=getAngle (QPointF (x() - parObj->getChildPos().x() , 

								(y() - parObj->getChildPos().y() ) ) );

    init();

}

BranchObj::~BranchObj ()

{

	// If I'm animated, I need to un-animate myself first

	if (anim.isAnimated() )

	{

		anim.setAnimated (false);

		model->stopAnimation (this);

	}

	cout << "Destr BranchObj of "<<this<<" ("<<treeItem->getHeading().toStdString()<<")"<<endl;

	// Check, if this branch was the last child to be deleted

	// If so, unset the scrolled flags in parent // FIXME-2 better do this in model?

	/*

	BranchObj *po=(BranchObj*)parObj;

	BranchObj *bo;

	if (po)

	{

		bo=((BranchObj*)parObj)->getLastBranch();

		if (bo) po->unScroll();

	}

	*/

	clear();

}

bool BranchObj::operator< ( const BranchObj & other )

{

    return  angle < other.angle;

}

bool BranchObj::operator== ( const BranchObj & other )

{

    return angle == other.angle;

}

void BranchObj::init () 

{

	if (parObj)

	{

		absPos=getRandPos();

		absPos+=parObj->getChildPos();

	}

    setChildObj(this);

	includeImagesVer=false;

	includeImagesHor=false;

}

void BranchObj::copy (BranchObj* other)

{

    OrnamentedObj::copy(other);

/* FIXME-3 not needed

	for (int i=0; i<other->treeItem->branchCount(); ++i)

		// Make deep copy of b

		// Because addBranch again calls copy for the children,

		// Those will get a deep copy, too

		addBranch(other->branch.at(i) );	

*/		

	for (int i=0; i<other->floatimage.size(); ++i)

		addFloatImage  (other->floatimage.at(i));

	setVisibility (other->visible);

	angle=other->angle;

    positionBBox();

}

void BranchObj::clear() 

{

	setVisibility (true);

	while (!floatimage.isEmpty())

		delete floatimage.takeFirst();

	while (!xlink.isEmpty())

		delete xlink.takeFirst();

}

bool isAbove (BranchObj* a, BranchObj *b)

{

	if (a->angle < b->angle)

		return true;

	else	

		return false;

}

void BranchObj::setParObjTmp(LinkableMapObj* lmo, QPointF m, int off)

{

	// Temporary link to lmo

	// m is position of mouse pointer 

	// offset 0: default 1: below lmo   -1 above lmo  (if possible)

	BranchObj* o=(BranchObj*)(lmo);

	if (!parObjTmpBuf) 

		parObjTmpBuf=parObj;

	// ignore mapcenter and mainbranch

	if (lmo->getDepth()<2) off=0;

	if (off==0)

		link2ParPos=false;

	else

		link2ParPos=true;

	parObj=o;

	depth=parObj->getDepth()+1;

	// setLinkStyle calls updateLink, only set it once

	if (style!=getDefLinkStyle() ) setLinkStyle (getDefLinkStyle());

	// Move temporary to new position at destination

	// Usually the positioning would be done by reposition(),

	// but then also the destination branch would "Jump" around...

	// Better just do it approximately

	if (depth==1)

	{	// new parent is the mapcenter itself

		QPointF p= normalise ( QPointF (m.x() - o->getChildPos().x(),

									  m.y() - o->getChildPos().y() ));

		if (p.x()<0) p.setX( p.x()-bbox.width() );

		move2RelPos (p);

	} else

	{	

		qreal y;

		if (off==0)

		{

			// new parent is just a branch, link to it

			QRectF t=o->getBBoxSizeWithChildren();

			if (o->getTreeItem()->getLastBranch())

				y=t.y() + t.height() ;

			else

				y=t.y();

		} else

		{

			if (off<0)

				// we want to link above lmo

				y=o->y() - height() + 5;

			else	

				// we want to link below lmo

				// Bottom of sel should be 5 pixels above

				// the bottom of the branch _below_ the target:

				// Don't try to find that branch, guess 12 pixels

				y=o->getChildPos().y()  -height() + 12; 

		}	

		if (o->getOrientation()==LinkableMapObj::LeftOfCenter)

			move ( o->getChildPos().x() - linkwidth, y );

		else	

			move (o->getChildPos().x() + linkwidth, y );

	}	

	// updateLink is called implicitly in move

	requestReposition();	

}

void BranchObj::unsetParObjTmp()

{

	if (parObjTmpBuf) 

	{

		link2ParPos=false;

		parObj=parObjTmpBuf;

		parObjTmpBuf=NULL;

		depth=parObj->getDepth()+1;

		setLinkStyle (getDefLinkStyle() );

		updateLink();

	}		

}

void BranchObj::setVisibility(bool v, int toDepth)

{

	BranchItem *bi=(BranchItem*)treeItem;

    if (depth <= toDepth)

    {

		frame->setVisibility(v);

		heading->setVisibility(v);

		systemFlags->setVisibility(v);

		standardFlags->setVisibility(v);

		LinkableMapObj::setVisibility (v);

		int i;

		for (i=0; i<floatimage.size(); ++i)

			floatimage.at(i)->setVisibility (v);

		for (i=0; i<xlink.size(); ++i)	

			xlink.at(i)->setVisibility ();	

		// Only change children, if I am not scrolled

		if (! bi->isScrolled() && (bi->depth() < toDepth))

		{

			// Now go recursivly through all children

			for (i=0; i<treeItem->branchCount(); ++i)

				treeItem->getBranchObjNum(i)->setVisibility (v,toDepth);	

		}

    } // depth <= toDepth	

	requestReposition();

}	

void BranchObj::setVisibility(bool v)

{

    setVisibility (v,MAX_DEPTH);

}

void BranchObj::setLinkColor ()

{

	// Overloaded from LinkableMapObj

	// BranchObj can use color of heading

	if (model)

	{

		if (model->getMapLinkColorHint()==HeadingColor)

			LinkableMapObj::setLinkColor (heading->getColor() );

		else	

			LinkableMapObj::setLinkColor ();

	}		

}

void BranchObj::setColorSubtree(QColor col)

{

	setColor (col);

	for (int i=0; i<treeItem->branchCount(); ++i)

		treeItem->getBranchObjNum(i)->setColorSubtree(col);

}

void BranchObj::updateContentSize()

{

	calcBBoxSize();

	positionBBox();

	requestReposition();

}

void BranchObj::positionContents()

{

    for (int i=0; i<floatimage.size(); ++i )

		floatimage.at(i)->reposition();

	OrnamentedObj::positionContents();

}

void BranchObj::move (double x, double y)

{

	OrnamentedObj::move (x,y);

    for (int i=0; i<floatimage.size(); ++i )

		floatimage.at(i)->reposition();

    positionBBox();

}

void BranchObj::move (QPointF p)

{

	move (p.x(), p.y());

}

void BranchObj::moveBy (double x, double y)

{

	OrnamentedObj::moveBy (x,y);

	for (int i=0; i<treeItem->branchCount(); ++i)

		treeItem->getBranchObjNum(i)->moveBy (x,y);

    positionBBox();

}

void BranchObj::moveBy (QPointF p)

{

	moveBy (p.x(), p.y());

}

void BranchObj::positionBBox()

{

	QPointF ap=getAbsPos();

	bbox.moveTopLeft (ap);

	positionContents();

	// set the frame

	frame->setRect(QRectF(bbox.x(),bbox.y(),bbox.width(),bbox.height() ) );

	// Update links to other branches

	for (int i=0; i<xlink.size(); ++i)

		xlink.at(i)->updateXLink();

}

void BranchObj::calcBBoxSize()

{

    QSizeF heading_r=heading->getSize();

    qreal heading_w=(qreal) heading_r.width() ;

    qreal heading_h=(qreal) heading_r.height() ;

    QSizeF sysflags_r; //FIXME-1 =systemFlags->getSize();

	qreal sysflags_h=0;//sysflags_r.height();

	qreal sysflags_w=0;//sysflags_r.width();

    QSizeF stanflags_r; //FIXME-1 =standardFlags->getSize();

	qreal stanflags_h=0; //stanflags_r.height();

	qreal stanflags_w=0; //stanflags_r.width();

    qreal w;

    qreal h;

	// set width to sum of all widths

	w=heading_w + sysflags_w + stanflags_w;

	// set height to maximum needed height

	h=max (sysflags_h,stanflags_h);

	h=max (h,heading_h);

	// Save the dimension of flags and heading

	ornamentsBBox.setSize ( QSizeF(w,h));

	// clickBox includes Flags and Heading

    clickBox.setSize (ornamentsBBox.size() );

	// Floatimages 

	QPointF rp;

	topPad=botPad=leftPad=rightPad=0;

	if (includeImagesVer || includeImagesHor)

	{

		if (treeItem->imageCount()>0)

		{

			for (int i=0; i<floatimage.size(); ++i )

			{

				rp=floatimage.at(i)->getRelPos();

				if (includeImagesVer)

				{

					if (rp.y() < 0) 

						topPad=max (topPad,-rp.y()-h);

					if (rp.y()+floatimage.at(i)->height() > 0)

						botPad=max (botPad,rp.y()+floatimage.at(i)->height());

				}		

				if (includeImagesHor)

				{

					if (orientation==LinkableMapObj::RightOfCenter)

					{

						if (-rp.x()-w > 0) 

							leftPad=max (leftPad,-rp.x()-w);

						if (rp.x()+floatimage.at(i)->width() > 0)

							rightPad=max (rightPad,rp.x()+floatimage.at(i)->width());

					} else

					{

						if (rp.x()< 0) 

							leftPad=max (leftPad,-rp.x());

						if (rp.x()+floatimage.at(i)->width() > w)

							rightPad=max (rightPad,rp.x()+floatimage.at(i)->width()-w);

					}

				}		

			}	

		}	

		h+=topPad+botPad;

		w+=leftPad+rightPad;

	}

	// Frame thickness

    w+=frame->getPadding();

    h+=frame->getPadding();

	// Finally set size

    bbox.setSize (QSizeF (w,h));

}

void BranchObj::setDockPos()

{

	// Sets childpos and parpos depending on orientation

	if (getOrientation()==LinkableMapObj::LeftOfCenter )

    {

		childPos=QPointF (

			ornamentsBBox.bottomLeft().x(), 

			bottomlineY);

		parPos=QPointF (

			ornamentsBBox.bottomRight().x(),

			bottomlineY);

    } else

    {

		childPos=QPointF (

			ornamentsBBox.bottomRight().x(), 

			bottomlineY);

		parPos=QPointF (

			ornamentsBBox.bottomLeft().x(),

			bottomlineY);

    }

}

void BranchObj::updateHeading()

{

	if (!treeItem)

	{

		qWarning ("BranchObj::udpateHeading treeItem==NULL");

		return;

	}

	cout << "BO::updateHeading: "<<treeItem->getHeading().toStdString()<<endl;

	heading->setText (treeItem->getHeading() );

	updateContentSize();

}

QString BranchObj::saveToDir (const QString &tmpdir,const QString &prefix, const QPointF& offset)

{

	// Cloudy stuff can be hidden during exports

	// FIXME-1 if (hidden) return "";

	// Update of note is usually done while unselecting a branch

	// if (isNoteInEditor) getNoteFromTextEditor();		//FIXME-2 moved to TreeItem

    QString s,a;

	QString scrolledAttr;

	if ( ((BranchItem*)treeItem)->isScrolled() ) 

		scrolledAttr=attribut ("scrolled","yes");

	else

		scrolledAttr="";

	// save area, if not scrolled

	QString areaAttr;

	if (!((BranchItem*) (treeItem->parent()) )->isScrolled() )

	{

		areaAttr=

			attribut("x1",QString().setNum(absPos.x()-offset.x())) +

			attribut("y1",QString().setNum(absPos.y()-offset.y())) +

			attribut("x2",QString().setNum(absPos.x()+width()-offset.x())) +

			attribut("y2",QString().setNum(absPos.y()+height()-offset.y()));

	} else

		areaAttr="";

	// Providing an ID for a branch makes export to XHTML easier

	QString idAttr;

	if (treeItem->xlinkCount()>0)

		idAttr=attribut ("id",model->getSelectString(this)); //TODO directly access model

	else

		idAttr="";

    s=beginElement ("branch" 

		+getOrnXMLAttr() 

		+scrolledAttr 

		+areaAttr 

		+idAttr 

		+getIncludeImageAttr() );

    incIndent();

	// save heading

    s+=valueElement("heading", treeItem->getHeading(),

		attribut ("textColor",QColor(heading->getColor()).name()));

	// Save frame

	if (frame->getFrameType()!=FrameObj::NoFrame) 

		s+=frame->saveToDir ();

	// save names of flags set

	s+=standardFlags->saveToDir(tmpdir,prefix,0);

	// Save FloatImages

	for (int i=0; i<floatimage.size(); ++i)

		s+=floatimage.at(i)->saveToDir (tmpdir,prefix);

	// save note

	if (!treeItem->getNoteObj().isEmpty() )

		s+=treeItem->getNoteObj().saveToDir();

	// Save branches

	for (int i=0; i<treeItem->branchCount(); ++i)

		s+=treeItem->getBranchObjNum(i)->saveToDir(tmpdir,prefix,offset);

	// Save XLinks

	QString ol;	// old link

	QString cl;	// current link

	for (int i=0; i<xlink.size(); ++i)

	{

		cl=xlink.at(i)->saveToDir();

		if (cl!=ol)

		{

			s+=cl;

			ol=cl;

		} else

		{

			qWarning (QString("Ignoring of duplicate xLink in %1").arg(treeItem->getHeading()));

		}

	}	

    decIndent();

    s+=endElement   ("branch");

    return s;

}

void BranchObj::addXLink (XLinkObj *xlo)

{

	xlink.append (xlo);

}

void BranchObj::removeXLinkRef (XLinkObj *xlo)

{

	xlink.removeAt (xlink.indexOf(xlo));

}

void BranchObj::deleteXLink(XLinkObj *xlo)

{

	xlo->deactivate();

	if (!xlo->isUsed()) delete (xlo);

}

void BranchObj::deleteXLinkAt (int i)

{

	XLinkObj *xlo=xlink.at(i);

	xlo->deactivate();

	if (!xlo->isUsed()) delete(xlo);

}

XLinkObj* BranchObj::XLinkAt (int i)

{

	return xlink.at(i);

}

BranchObj* BranchObj::XLinkTargetAt (int i)

{

	if (i>=0 && i<xlink.size())

	{

		if (xlink.at(i))

			return xlink.at(i)->otherBranch (this);

	}

	return NULL;

}

void BranchObj::setIncludeImagesVer(bool b)

{

	includeImagesVer=b;

	calcBBoxSize();

	positionBBox();

	requestReposition();

}

bool BranchObj::getIncludeImagesVer()

{

	return includeImagesVer;

}

void BranchObj::setIncludeImagesHor(bool b)

{

	includeImagesHor=b;

	calcBBoxSize();

	positionBBox();

	requestReposition();

}

bool BranchObj::getIncludeImagesHor()

{

	return includeImagesHor;

}

QString BranchObj::getIncludeImageAttr()

{

	QString a;

	if (includeImagesVer)

		a=attribut ("incImgV","true");

	else

		a=attribut ("incImgV","false");

	if (includeImagesHor)

		a+=attribut ("incImgH","true");

	else

		a+=attribut ("incImgH","false");

	return a;	

}

FloatImageObj* BranchObj::addFloatImage ()

{

	FloatImageObj *newfi=new FloatImageObj (scene,this);

	floatimage.append (newfi);

	if ( ((BranchItem*)treeItem)->hasScrolledParent((BranchItem*)treeItem) )

		newfi->setVisibility (false);

	else	

		newfi->setVisibility(visible);

		/*

	calcBBoxSize();

	positionBBox();

	*/

	requestReposition();

	return newfi;

}

FloatImageObj* BranchObj::addFloatImage (FloatImageObj *fio)

{

	FloatImageObj *newfi=new FloatImageObj (scene,this);

	floatimage.append (newfi);

	newfi->copy (fio);

	if (((BranchItem*)treeItem)->hasScrolledParent((BranchItem*)treeItem) )

		newfi->setVisibility (false);

	else	

		newfi->setVisibility(visible);

		/*

	calcBBoxSize();

	positionBBox();

	*/

	requestReposition();

	return newfi;

}

FloatImageObj* BranchObj::getFirstFloatImage ()

{

    return floatimage.first();

}

FloatImageObj* BranchObj::getLastFloatImage ()

{

    return floatimage.last();

}

FloatImageObj* BranchObj::getFloatImageNum (const uint &i)

{

    return floatimage.at(i);

}

void BranchObj::removeFloatImage (FloatImageObj *fio)

{

	int i=floatimage.indexOf (fio);

	if (i>-1) delete (floatimage.takeAt (i));

	calcBBoxSize();

	positionBBox();

	requestReposition();

}

void BranchObj::savePosInAngle ()

{

	// Save position in angle

	for (int i=0; i<treeItem->branchCount(); ++i)

		treeItem->getBranchObjNum(i)->angle=i;

}

void BranchObj::setDefAttr (BranchModification mod)

{

	int fontsize;

	switch (depth)

	{

		case 0: fontsize=16; break;

		case 1: fontsize=12; break;

		default: fontsize=10; break;

	}	

	setLinkColor ();

	setLinkStyle(getDefLinkStyle());

	QFont font("Sans Serif,8,-1,5,50,0,0,0,0,0");

	font.setPointSize(fontsize);

	heading->setFont(font );

	if (mod==NewBranch)

		setColor (((BranchObj*)(parObj))->getColor());

	calcBBoxSize();

}

BranchObj* BranchObj::addBranch()

{

    BranchObj* newbo=new BranchObj(scene,this);

    newbo->setParObj(this);

	newbo->setDefAttr(NewBranch);

	/* FIXME-2 treeItem not set yet!!!

	if ( ((BranchItem*)treeItem)->isScrolled() )

		newbo->setVisibility (false);

	else	

		newbo->setVisibility(visible);

	*/	

	newbo->updateLink();	

	requestReposition();

	return newbo;

}

BranchObj* BranchObj::addBranch(BranchObj* bo)

{

    BranchObj* newbo=new BranchObj(scene,this);

    //FIXME-1 branch.append (newbo);

    newbo->copy(bo);

    newbo->setParObj(this);

	newbo->setDefAttr(MovedBranch);

	if ( ((BranchItem*)treeItem)->isScrolled() )

		newbo->setVisibility (false);

	else	

		newbo->setVisibility(bo->visible);

	newbo->updateLink();	

	requestReposition();

	return newbo;

}

BranchObj* BranchObj::addBranchPtr(BranchObj* bo)

{

	//FIXME-1 branch.append (bo);

	bo->setParObj (this);

	bo->depth=depth+1;

	bo->setDefAttr(MovedBranch);

	BranchItem *bi=(BranchItem*)treeItem;

	if ( bi->isScrolled() ) bi->tmpUnscroll();

	//setLastSelectedBranch (bo);	//FIXME-3 needed?

	return bo;

}

BranchObj* BranchObj::insertBranch(int pos)

{

	savePosInAngle();

	// Add new bo and resort branches

	BranchObj *newbo=addBranch ();

	newbo->angle=pos-0.5;

	//FIXME-1 qSort (branch.begin(),branch.end(), isAbove);

	return newbo;

}

BranchObj* BranchObj::insertBranch(BranchObj* bo, int pos)

{

	savePosInAngle();

	// Add new bo and resort branches

	bo->angle=pos-0.5;

	BranchObj *newbo=addBranch (bo);

	//FIXME-1 qSort (branch.begin(),branch.end(), isAbove);

	return newbo;

}

BranchObj* BranchObj::insertBranchPtr (BranchObj* bo, int pos)

{

	savePosInAngle();

	// Add new bo and resort branches

	bo->angle=pos-0.5;

	//FIXME-1 branch.append (bo);

	bo->setParObj (this);

	bo->depth=depth+1;

	bo->setDefAttr (MovedBranch);

	BranchItem *bi=(BranchItem*)treeItem;

	if ( bi->isScrolled() ) bi->tmpUnscroll();

	//setLastSelectedBranch (bo); //FIXME-3 needed?

	//FIXME-1 qSort (branch.begin(),branch.end(), isAbove);

	return bo;

}

void BranchObj::removeBranchHere(BranchObj* borem)	// FIXME-1 getNum no longer available

{

/*

	// This removes the branch bo from list, but 

	// inserts its children at the place of bo

	BranchObj *bo;

	bo=borem->getLastBranch();

	int pos=borem->getNum();

	while (bo)

	{

		bo->linkTo (this,pos+1);

		bo=borem->getLastBranch();

	}	

	removeBranch (borem);

	*/

}

void BranchObj::removeChildren()

{

	clear();

}

void BranchObj::removeBranch(BranchObj* bo)	// FIXME-1 not needed here

{

/*

    // if bo is not in branch remove returns false, we

    // don't care...

	int i=branch.indexOf(bo);

    if (i>=0)

	{

		delete (bo);

		branch.removeAt (i);

	} else

		qWarning ("BranchObj::removeBranch tried to remove non existing branch?!\n");

	requestReposition();

	*/

}

void BranchObj::removeBranchPtr(BranchObj* bo)	// FIXME-1 not needed here

{

/*

	int i=branch.indexOf(bo);

	if (i>=0)

		branch.removeAt (i);

	else	

		qWarning ("BranchObj::removeBranchPtr tried to remove non existing branch?!\n");

	requestReposition();

*/	

}

bool BranchObj::canMoveBranchUp() 

{

	/* FIXME-1 move to BranchItem

	if (!parObj || depth==1) return false;

	BranchObj* par=(BranchObj*)parObj;

	if (this==par->getTreeItem()->getFirstBranch())

		return false;

	else

		return true;

		*/

return false;

}

BranchObj* BranchObj::moveBranchUp(BranchObj* bo1) // FIXME-1

{

/*

	savePosInAngle();

    int i=branch.indexOf(bo1);

    if (i>0) 

	{	// -1 if bo1 not found 

		treeItem->getBranchObjNum(i)->angle--;

		treeItem->getBranchObjNum(i-1)->angle++;

		qSort (branch.begin(),branch.end(), isAbove);

		return treeItem->getBranchObjNum(i);

	} else

*/	

		return NULL;

}

bool BranchObj::canMoveBranchDown() 

{

	/* FIXME-1 move to BranchItem

	if (!parObj|| depth==1) return false;

	BranchObj* par=(BranchObj*)parObj;

	if (this==par->getTreeItem()->getLastBranch())

		return false;

	else

		return true;

	*/

return false;	

}

BranchObj* BranchObj::moveBranchDown(BranchObj* bo1)// FIXME-1

{

/*

	savePosInAngle();

    int i=branch.indexOf(bo1);

	int j;

	if (i <treeItem->branchCount())

	{

		j = i+1;

		treeItem->getBranchObjNum(i)->angle++;

		treeItem->getBranchObjNum(j)->angle--;

		qSort (branch.begin(),branch.end(), isAbove);

		return treeItem->getBranchObjNum(i);

	} else

*/	

		return NULL;

}

void BranchObj::sortChildren() //FIXME-1  

{

/*

	int childCount=branch.count(); 

	int curChildIndex;

	bool madeChanges=false;

	do

	{

		madeChanges=false;

		for(curChildIndex=1;curChildIndex<childCount;curChildIndex++){

			BranchObj* curChild=(BranchObj*)treeItem->getBranchObjNum(curChildIndex);

			BranchObj* prevChild=(BranchObj*)treeItem->getBranchObjNum(curChildIndex-1);

			if(prevChild->heading->text().compare(curChild->heading->text())>0)

			{

				this->moveBranchUp(curChild);

				madeChanges=true;

			}

		}

	}while(madeChanges);

*/

}

BranchObj* BranchObj::linkTo (BranchObj* dst, int pos)

{

	// Find current parent and 

	// remove pointer to myself there

	if (!dst) return NULL;

	BranchObj *par=(BranchObj*)parObj;

	if (par)

		par->removeBranchPtr (this);

	else

		return NULL;

	// Create new pointer to myself at dst

	if (pos<0||dst->getDepth()==0)

	{	

		// links myself as last branch at dst

		dst->addBranchPtr (this);

		updateLink();

		return this;

	} else

	{

		// inserts me at pos in parent of dst

		if (par)

		{

			BranchObj *bo=dst->insertBranchPtr (this,pos);

			bo->setDefAttr(MovedBranch);

			updateLink();

			return bo;

		} else

			return NULL;

	}	

}

void BranchObj::alignRelativeTo (QPointF ref,bool alignSelf)

{

	qreal th = bboxTotal.height();	

// TODO testing

/*

	QString h=QString (treeItem->depth(),' ');

	h+=treeItem->getHeading();

	h+=QString (15,' ');

	h.truncate (15);

	QPointF pp; if (parObj) pp=parObj->getChildPos();

	cout << "BO::alignRelTo ";

	cout<<h.toStdString();

//	cout << "    d="<<treeItem->depth()<<

cout<<  "  ref="<<ref<<

      	"  bbox.tL="<<bboxTotal.topLeft()<<

		"  absPos="<<absPos<<

//		"  relPos="<<relPos<<

//		"  parPos="<<pp<<

		"  w="<<bbox.width()<<

		"  h="<<bbox.height()<<

//		"  orient="<<orientation<<

//		"  alignSelf="<<alignSelf<<

//		"  scrolled="<<((BranchItem*)treeItem)->isScrolled()<<

//		"  pad="<<topPad<<","<<botPad<<","<<leftPad<<","<<rightPad<<

//		"  hidden="<<hidden<<

		"  th="<<th<<

		endl;

*/

	setOrientation();

	//updateLink();

	if (depth==1)

	{

		// Position relatively, if needed

		//if (useRelPos) move2RelPos (relPos.x(), relPos.y());

		// Calc angle to mapCenter if I am a mainbranch

		// needed for reordering the mainbranches clockwise 

		// around mapcenter 

		angle=getAngle (QPointF ((int)(x() - parObj->getChildPos().x() ), 

								(int)(y() - parObj->getChildPos().y() ) ) );

	}							

	if (depth>1)

    {

		// Align myself depending on orientation and parent, but

		// only if I am not a mainbranch or mapcenter itself

		if (anim.isAnimated())

		{

			move2RelPos(anim);

		} else

		{

			LinkableMapObj::Orientation o;

			o=parObj->getOrientation();