#include "branchobj.h"

 // #include "texteditor.h"

 #include "mapeditor.h"

 #include "mainwindow.h"

 #include "misc.h"

 class TextEditor;

 extern TextEditor *textEditor;

 extern Main *mainWindow;

 extern FlagRowObj *standardFlagsDefault;

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

 // BranchObj

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

 BranchObj* BranchObj::itLast=NULL;

 BranchObj* BranchObj::itFirst=NULL;

 BranchObj::BranchObj () :OrnamentedObj()

 {

 //    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 ()

 {

 	//cout << "Destr BranchObj of "<<this<<endl;

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

 	// If so, unset the scrolled flags

 	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();

 	}

     lastSelectedBranch=0;

     setChildObj(this);

 	scrolled=false;

 	tmpUnscrolled=false;

 	includeImagesVer=false;

 	includeImagesHor=false;

 }

 void BranchObj::copy (BranchObj* other)

 {

     OrnamentedObj::copy(other);

 	branch.clear();

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

 		// Make deep copy of b

 		// Because addBranch again calls copy for the childs,

 		// 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));

 	scrolled=other->scrolled;

 	tmpUnscrolled=other->tmpUnscrolled;

 	setVisibility (other->visible);

 	angle=other->angle;

     positionBBox();

 }

 void BranchObj::clear() 

 {

 	setVisibility (true);

 	while (!floatimage.isEmpty())

 		delete floatimage.takeFirst();

 	while (!xlink.isEmpty())

 		delete xlink.takeFirst();

 	while (!branch.isEmpty())

 		delete branch.takeFirst();

 }

 bool isAbove (BranchObj* a, BranchObj *b)

 {

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

 		return true;

 	else	

 		return false;

 }

 int BranchObj::getNum()

 {

 	if (parObj)

 		return ((BranchObj*)parObj)->getNum (this);

 	else

 		return 0;

 }

 int BranchObj::getNum(BranchObj *bo)

 {

 	return branch.indexOf (bo);

 }

 int BranchObj::getFloatImageNum(FloatImageObj *fio)

 {

 	return floatimage.indexOf(fio);

 }

 int BranchObj::countBranches()

 {

 	return branch.count();

 }

 int BranchObj::countFloatImages()

 {

 	return floatimage.count();

 }

 int BranchObj::countXLinks()

 {

 	return xlink.count();

 }

 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->getBBoxSizeWithChilds();

 			if (o->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::unScroll()

 {

 	if (tmpUnscrolled) resetTmpUnscroll();

 	if (scrolled) toggleScroll();

 }

 void BranchObj::toggleScroll()

 {

 	if (scrolled)

 	{

 		scrolled=false;

 		systemFlags->deactivate("scrolledright");

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

 			branch.at(i)->setVisibility(true);

 	} else

 	{

 		scrolled=true;

 		systemFlags->activate("scrolledright");

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

 			branch.at(i)->setVisibility(false);

 	}

 	calcBBoxSize();

 	positionBBox();	

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

 	forceReposition();

 }

 bool BranchObj::isScrolled()

 {

 	return scrolled;

 }

 bool BranchObj::hasScrolledParent(BranchObj *start)

 {

 	// Calls parents recursivly to

 	// find out, if we are scrolled at all.

 	// But ignore myself, just look at parents.

 	if (this !=start && scrolled) return true;

 	BranchObj* bo=(BranchObj*)(parObj);

 	if (bo) 

 		return bo->hasScrolledParent(start);

 	else

 		return false;

 }

 void BranchObj::tmpUnscroll()

 {

 	// Unscroll parent (recursivly)

 	BranchObj* bo=(BranchObj*)(parObj);

 	if (bo) bo->tmpUnscroll();

 	// Unscroll myself

 	if (scrolled)

 	{

 		tmpUnscrolled=true;

 		systemFlags->activate("tmpUnscrolledright");

 		toggleScroll();

 	}	

 }

 void BranchObj::resetTmpUnscroll()

 {

 	// Unscroll parent (recursivly)

 	BranchObj* bo=(BranchObj*)(parObj);

 	if (bo)

 		bo->resetTmpUnscroll();

 	// Unscroll myself

 	if (tmpUnscrolled)

 	{

 		tmpUnscrolled=false;

 		systemFlags->deactivate("tmpUnscrolledright");

 		toggleScroll();

 	}	

 }

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

 {

     if (depth <= toDepth)

     {

 		frame->setVisibility(v);

 		heading->setVisibility(v);

 		systemFlags->setVisibility(v);

 		standardFlags->setVisibility(v);

 		LinkableMapObj::setVisibility (v);

 		// Only change childs, if I am not scrolled

 		if (!scrolled && (depth < toDepth))

 		{

 			// Now go recursivly through all childs

 			int i;

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

 				branch.at(i)->setVisibility (v,toDepth);	

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

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

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

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

 		}

     } // 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 (mapEditor)

 	{

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

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

 		else	

 			LinkableMapObj::setLinkColor ();

 	}		

 }

 void BranchObj::setColorSubtree(QColor col)

 {

 	setColor (col);

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

 		branch.at(i)->setColorSubtree(col);

 }

 BranchObj* BranchObj::first()

 {

 	itLast=NULL;	

 	itFirst=this;

 	return this; 

 }

 BranchObj* BranchObj::next()

 {

 	BranchObj *bo;

 	BranchObj *lmo;

 	BranchObj *po=(BranchObj*)parObj;

 	if (branch.isEmpty())

 		bo=NULL;

 	else

 		bo=branch.first();

 	if (!itLast)

 	{

 		// no itLast, we are just beginning

 		if (bo) 

 		{

 			// we have childs, return first one

 			itLast=this;

 			return bo;

 		}	

 		else

 		{

 			// No childs, so there is no next

 			itLast=this;

 			return NULL;

 		}	

 	}

 	// We have an itLast

 	if (itLast==po)

 	{	// We come from parent

 		if (bo)

 		{

 			// there are childs, go there

 			itLast=this;

 			return bo;

 		}	

 		else

 		{	// no childs, try to go up again

 			if (po)

 			{

 				// go back to parent and try to find next there

 				itLast=this;

 				lmo=po->next();

 				itLast=this;

 				return lmo;

 			}	

 			else

 			{

 				// can't go up, I am mapCenter, no next

 				itLast=NULL;

 				return NULL;

 			}	

 		}

 	}

 	// We don't come from parent, but from brother or childs

 	// Try to find last child, where we came from, in my own childs

 	bool searching=true;

 	int i=0;

 	while (i<branch.size())

 	{

 		// Try to find itLast in my own childs

 		if (itLast==branch.at(i))

 		{

 			// ok, we come from my own childs

 			if (i<branch.size()-1)

 				bo=branch.at(i+1);

 			 else

 				bo=NULL;

 			searching=false;

 			i=branch.size();

 		} 	

 		++i;	

 	}

 	if (!searching)

 	{	// found itLast in my childs

 		if (bo)

 		{

 			// found a brother of lastLMO 

 			itLast=this;

 			return bo;

 		}	

 		else

 		{

 			if (po)

 			{

 				if (this==itFirst) return NULL;	// Stop at starting point

 				// go up

 				itLast=this;

 				lmo=po->next();

 				itLast=this;

 				return lmo;

 			}

 			else

 			{

 				// can't go up, I am mapCenter

 				itLast=NULL;

 				return NULL;

 			}	

 		}

 	}

 	// couldn't find last child, it must be a nephew of mine

 	if (branch.size()>0)

 	{

 		// proceed with my first child

 		itLast=this;	

 		return branch.first();

 	}	

 	else

 	{

 		// or go back to my parents

 		if (po)

 		{

 			// go up

 			itLast=this;

 			lmo=po->next();

 			itLast=this;

 			return lmo;

 		}	

 		else

 		{

 			// can't go up, I am mapCenter

 			itLast=NULL;

 			return NULL;

 		}	

 	}	

 }

 BranchObj* BranchObj::getLastIterator()

 {

 	return itLast;

 }

 void BranchObj::setLastIterator(BranchObj* it)

 {

 	itLast=it;

 }

 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<branch.size(); ++i)

 		branch.at(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=systemFlags->getSize();

 	qreal sysflags_h=sysflags_r.height();

 	qreal sysflags_w=sysflags_r.width();

     QSizeF stanflags_r=standardFlags->getSize();

 	qreal stanflags_h=stanflags_r.height();

 	qreal stanflags_w=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 (countFloatImages()>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);

     }

 }

 LinkableMapObj* BranchObj::findMapObj(QPointF p, LinkableMapObj* excludeLMO)

 {

 	// Search branches

     LinkableMapObj *lmo;

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

     {	

 		lmo=branch.at(i)->findMapObj(p, excludeLMO);

 		if (lmo != NULL) return lmo;

     }

 	// Search myself

     if (inBox (p) && (this != excludeLMO) && isVisibleObj() ) 

 		return this;

 	// Search float images

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

 		if (floatimage.at(i)->inBox(p) && 

 			(floatimage.at(i) != excludeLMO) && 

 			floatimage.at(i)->getParObj()!= excludeLMO &&

 			floatimage.at(i)->isVisibleObj() 

 		) return floatimage.at(i);

     return NULL;

 }

 LinkableMapObj* BranchObj::findID (QString sid)

 {

 	// Search branches

     LinkableMapObj *lmo;

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

     {	

 		lmo=branch.at(i)->findID (sid);

 		if (lmo != NULL) return lmo;

     }

 	// Search myself

 	if (sid==objID) return this;

 /*

 	// Search float images

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

 		if (floatimage.at(i)->inBox(p) && 

 			(floatimage.at(i) != excludeLMO) && 

 			floatimage.at(i)->getParObj()!= excludeLMO &&

 			floatimage.at(i)->isVisibleObj() 

 		) return floatimage.at(i);

 */

     return NULL;

 }

 void BranchObj::setHeading(QString s)

 {

     heading->setText(s);	// set new heading

 	calcBBoxSize();			// recalculate bbox

     positionBBox();			// rearrange contents

 	requestReposition();

 }

 void BranchObj::setHideTmp (HideTmpMode mode)

 {

 	if (mode==HideExport && (hideExport|| hasHiddenExportParent() ) )

 	{

 		// Hide stuff according to hideExport flag and parents

 		setVisibility (false);

 		hidden=true;

 	}else

 	{

 		// Do not hide, but still take care of scrolled status

 		if (hasScrolledParent(this))

 			setVisibility (false);

 		else

 			setVisibility (true);

 		hidden=false;

 	}	

 	// And take care of my childs

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

 		branch.at(i)->setHideTmp (mode);

 }

 bool BranchObj::hasHiddenExportParent()

 {

 	// Calls parents recursivly to

 	// find out, if we or parents are temp. hidden

 	if (hidden || hideExport) return true;

 	BranchObj* bo=(BranchObj*)parObj;

 	if (bo) 

 		return bo->hasHiddenExportParent();

 	else

 		return false;

 }

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

 {

 	// Cloudy stuff can be hidden during exports

 	if (hidden) return "";

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

 	if (isNoteInEditor) getNoteFromTextEditor();

     QString s,a;

 	QString scrolledAttr;

 	if (scrolled) 

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

 	else

 		scrolledAttr="";

 	// save area, if not scrolled

 	QString areaAttr;

 	if (!((BranchObj*)(parObj))->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 (countXLinks()>0)

 		idAttr=attribut ("id",getSelectString());

 	else

 		idAttr="";

     s=beginElement ("branch" 

 		+getOrnXMLAttr() 

 		+scrolledAttr 

 		+areaAttr 

 		+idAttr 

 		+getIncludeImageAttr() );

     incIndent();

 	// save heading

     s+=valueElement("heading", 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 (!note.isEmpty() )

 		s+=note.saveToDir();

 	// Save branches

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

 		s+=branch.at(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(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);

 }

 int BranchObj::countXLink()

 {

 	return xlink.count();

 }

 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 (hasScrolledParent(this) )

 		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 (hasScrolledParent(this) )

 		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<branch.size(); ++i)

 		branch.at(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);

     branch.append (newbo);

     newbo->setParObj(this);

 	newbo->setDefAttr(NewBranch);

     newbo->setHeading ("new");

 	if (scrolled)

 		newbo->setVisibility (false);

 	else	

 		newbo->setVisibility(visible);

 	newbo->updateLink();	

 	requestReposition();

 	return newbo;

 }

 BranchObj* BranchObj::addBranch(BranchObj* bo)

 {

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

     branch.append (newbo);

     newbo->copy(bo);

     newbo->setParObj(this);

 	newbo->setDefAttr(MovedBranch);

 	if (scrolled)

 		newbo->setVisibility (false);

 	else	

 		newbo->setVisibility(bo->visible);

 	newbo->updateLink();	

 	requestReposition();

 	return newbo;

 }

 BranchObj* BranchObj::addBranchPtr(BranchObj* bo)

 {

 	branch.append (bo);

 	bo->setParObj (this);

 	bo->depth=depth+1;

 	bo->setDefAttr(MovedBranch);

 	if (scrolled) tmpUnscroll();

 	setLastSelectedBranch (bo);

 	return bo;

 }

 BranchObj* BranchObj::insertBranch(int pos)

 {

 	savePosInAngle();

 	// Add new bo and resort branches

 	BranchObj *newbo=addBranch ();

 	newbo->angle=pos-0.5;

 	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);

 	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;

 	branch.append (bo);

 	bo->setParObj (this);

 	bo->depth=depth+1;

 	bo->setDefAttr (MovedBranch);

 	if (scrolled) tmpUnscroll();

 	setLastSelectedBranch (bo);

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

 	return bo;

 }

 void BranchObj::removeBranchHere(BranchObj* borem)

 {

 	// This removes the branch bo from list, but 

 	// inserts its childs 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::removeChilds()

 {

 	clear();

 }

 void BranchObj::removeBranch(BranchObj* bo)

 {

     // 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)

 {

 	int i=branch.indexOf(bo);

 	if (i>=0)

 		branch.removeAt (i);

 	else	

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

 	requestReposition();

 }

 void BranchObj::setLastSelectedBranch (BranchObj* bo)

 {

     lastSelectedBranch=branch.indexOf(bo);

 }

 BranchObj* BranchObj::getLastSelectedBranch ()

 {

     if (lastSelectedBranch>=0)

 	{

 		if ( branch.size()>lastSelectedBranch) 

 			return branch.at(lastSelectedBranch);

 		if (branch.size()>0)

 			return branch.last();

 	}	

     return NULL;

 }

 BranchObj* BranchObj::getFirstBranch ()

 {

 	if (branch.size()>0)

 		return branch.first();

 	else

 		return NULL;

 }

 BranchObj* BranchObj::getLastBranch ()

 {

 	if (branch.size()>0)

 		return branch.last();

 	else

 		return NULL;

 }

 BranchObj* BranchObj::getBranchNum (int i)

 {

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

 		return branch.at(i);

 	else	

 		return	NULL;

 }

 bool BranchObj::canMoveBranchUp() 

 {

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

 	BranchObj* par=(BranchObj*)parObj;

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

 		return false;

 	else

 		return true;

 }

 BranchObj* BranchObj::moveBranchUp(BranchObj* bo1) // modify my childlist

 {

 	savePosInAngle();

     int i=branch.indexOf(bo1);

     if (i>0) 

 	{	// -1 if bo1 not found 

 		branch.at(i)->angle--;

 		branch.at(i-1)->angle++;

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

 		return branch.at(i);

 	} else

 		return NULL;

 }

 bool BranchObj::canMoveBranchDown() 

 {

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

 	BranchObj* par=(BranchObj*)parObj;

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

 		return false;

 	else

 		return true;

 }

 BranchObj* BranchObj::moveBranchDown(BranchObj* bo1)// modify my childlist

 {

 	savePosInAngle();

     int i=branch.indexOf(bo1);

 	int j;

 	if (i <branch.size())

 	{

 		j = i+1;

 		branch.at(i)->angle++;

 		branch.at(j)->angle--;

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

 		return branch.at(i);

 	} else

 		return NULL;

 }

 void BranchObj::sortChildren()

 {

 	int childCount=branch.count();

 	int curChildIndex;

 	bool madeChanges=false;

 	do

 	{

 		madeChanges=false;

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

 			BranchObj* curChild=(BranchObj*)branch.at(curChildIndex);

 			BranchObj* prevChild=(BranchObj*)branch.at(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)

 {

 	qreal th = bboxTotal.height();	

 // TODO testing

 /*

 	cout << "BO::alignRelTo "<<getHeading().ascii()<<endl;

 	cout << "  d="<<depth<<

 		"  ref="<<ref<<

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

 		"  absPos="<<absPos<<

 		"  relPos="<<relPos<<

 		"  orient="<<orientation<<

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

 //		"  hidden="<<hidden<<

 //		"  th="<<th<<

 		endl;

 */

 	setOrientation();

 	//updateLink();

 	if (depth<2)

 	{

 		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() ) ) );

 		}							

 	} 

 	else

     {

 		// Align myself depending on orientation and parent, but

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

 		LinkableMapObj::Orientation o;

 		o=parObj->getOrientation();

 		switch (orientation) 

 		{

 			case LinkableMapObj::LeftOfCenter:

 				move (ref.x() - bbox.width(), ref.y() + (th-bbox.height())/2 );

 			break;

 			case LinkableMapObj::RightOfCenter:	

 				move (ref.x() , ref.y() + (th-bbox.height())/2  );

 			break;

 			default:

 				qWarning ("LMO::alignRelativeTo: oops, no orientation given...");

 			break;

 		}		

     }		

 	if (scrolled) return;

     // Set reference point for alignment of childs

     QPointF ref2;

     if (orientation==LinkableMapObj::LeftOfCenter)

 		ref2.setX(bbox.topLeft().x() - linkwidth);

     else	

 		ref2.setX(bbox.topRight().x() + linkwidth);

 	if (depth==1)

 		ref2.setY(absPos.y()-(bboxTotal.height()-bbox.height())/2);

 	else	

 		ref2.setY(ref.y() );	

     // Align the childs depending on reference point 

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

     {	

 		if (!branch.at(i)->isHidden())

 		{

 			branch.at(i)->alignRelativeTo (ref2);

 			ref2.setY(ref2.y() + branch.at(i)->getBBoxSizeWithChilds().height() );

 		}

     }

 }

 void BranchObj::reposition()

 {	

 /* TODO testing only

 	if (!getHeading().isEmpty())

 		cout << "BO::reposition  "<<getHeading().ascii()<<endl;

 	else	

 		cout << "BO::reposition  ???"<<endl;

 	cout << "  orient="<<orientation<<endl;

 */		

 	if (depth==0)

 	{

 		// only calculate the sizes once. If the deepest LMO 

 		// changes its height,

 		// all upper LMOs have to change, too.

 		calcBBoxSizeWithChilds();

 		updateLink();	// This update is needed if the scene is resized 

 						// due to excessive moving of a FIO

 	    alignRelativeTo ( QPointF (absPos.x(),

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

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

 		positionBBox();	// Reposition bbox and contents

 	} else

 	{

 		// This is only important for moving branches:

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

 	    alignRelativeTo ( QPointF (absPos.x(),

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

 	}

 }

 void BranchObj::unsetAllRepositionRequests()

 {

 	repositionRequest=false;

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

 		branch.at(i)->unsetAllRepositionRequests();

 }

 QRectF BranchObj::getTotalBBox()

 {

 	QRectF r=bbox;

 	if (scrolled) return r;

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

 		if (!branch.at(i)->isHidden())

 			r=addBBox(branch.at(i)->getTotalBBox(),r);

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

 		if (!floatimage.at(i)->isHidden())

 			r=addBBox(floatimage.at(i)->getTotalBBox(),r);

 	return r;

 }

 QRectF BranchObj::getBBoxSizeWithChilds()

 {

 	return bboxTotal;

 }

 void BranchObj::calcBBoxSizeWithChilds()

 {	

 	// This is initially called only from reposition and

 	// and only for mapcenter. So it won't be

 	// called more than once for a single user 

 	// action

 	// Calculate size of LMO including all childs (to align them later)

 	bboxTotal.setX(bbox.x() );

 	bboxTotal.setY(bbox.y() );

 	// if branch is scrolled, ignore childs, but still consider floatimages

 	if (scrolled)

 	{

 		bboxTotal.setWidth (bbox.width());

 		bboxTotal.setHeight(bbox.height());

 		return;

 	}

 	if (hidden)

 	{

 		bboxTotal.setWidth (0);

 		bboxTotal.setHeight(0);

 		if (parObj)

 		{

 			bboxTotal.setX (parObj->x());

 			bboxTotal.setY (parObj->y());

 		} else

 		{

 			bboxTotal.setX (bbox.x());

 			bboxTotal.setY (bbox.y());

 		}

 		return;

 	}

 	QRectF r(0,0,0,0);

 	QRectF br;

 	// Now calculate recursivly

 	// sum of heights 

 	// maximum of widths 

 	// minimum of y

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

 	{

 		if (!branch.at(i)->isHidden())

 		{

 			branch.at(i)->calcBBoxSizeWithChilds();

 			br=branch.at(i)->getBBoxSizeWithChilds();

 			r.setWidth( max (br.width(), r.width() ));

 			r.setHeight(br.height() + r.height() );

 			if (br.y()<bboxTotal.y()) bboxTotal.setY(br.y());

 		}

 	}

 	// Add myself and also

 	// add width of link to sum if necessary

 	if (branch.isEmpty())

 		bboxTotal.setWidth (bbox.width() + r.width() );

 	else	

 		bboxTotal.setWidth (bbox.width() + r.width() + linkwidth);

 	bboxTotal.setHeight(max (r.height(),  bbox.height()));

 }

 void BranchObj::select()

 {

 	// update NoteEditor

 	textEditor->setText(note.getNote() );

 	QString fnh=note.getFilenameHint();

 	if (fnh!="")

 		textEditor->setFilenameHint(note.getFilenameHint() );

 	else	

 		textEditor->setFilenameHint(getHeading() );

 	textEditor->setFontHint (note.getFontHint() );

 	isNoteInEditor=true;

 	// set selected and visible

     LinkableMapObj::select();

 	// Tell parent that I am selected now:

 	BranchObj* po=(BranchObj*)(parObj);

     if (po)	// TODO	    Try to get rid of this cast...

         po->setLastSelectedBranch(this);

 	// temporary unscroll, if we have scrolled parents somewhere

 	if (parObj) ((BranchObj*)(parObj))->tmpUnscroll();

 	// Show URL and link in statusbar

 	QString status;

 	if (!url.isEmpty()) status+="URL: "+url+"  ";

 	if (!vymLink.isEmpty()) status+="Link: "+vymLink;

 	if (!status.isEmpty()) mainWindow->statusMessage (status);

 	// Update Toolbar

 	updateFlagsToolbar();

 	// Update actions

 	mapEditor->updateActions();

 }

 void BranchObj::unselect()

 {

 	LinkableMapObj::unselect();

 	// Delete any messages like vymLink in StatusBar

 	mainWindow->statusMessage ("");

 	// Save current note

 	if (isNoteInEditor) getNoteFromTextEditor();

 	isNoteInEditor=false;

 	// reset temporary unscroll, if we have scrolled parents somewhere

 	if (parObj) ((BranchObj*)(parObj))->resetTmpUnscroll();

 	// Erase content of editor 

 	textEditor->setInactive();

 	// unselect all buttons in toolbar

 	standardFlagsDefault->updateToolbar();

 }

 QString BranchObj::getSelectString()

 {

 	QString s;

 	if (parObj)

 	{

 		if (depth==1)

 			s= "bo:" + QString("%1").arg(getNum());

 		else	

 			s= ((BranchObj*)(parObj))->getSelectString() + ",bo:" + QString("%1").arg(getNum());

 	} else

 		s="mc:";

 	return s;

 }

 void BranchObj::animate()

 {

 	//relPos.animate();

 	cout << "BO::animate  x,y="<<relPos.x()<<","<<relPos.y()<<endl;

 }