#include "branchitem.h"

 #include "branchobj.h"

 #include "vymmodel.h"

 #include "xlinkitem.h"

 #include <iostream>

 #include <QDir>

 using namespace std;

 BranchItem::BranchItem(const QList<QVariant> &data, TreeItem *parent):MapItem (data,parent)

 {

 	//cout << "Constr. BranchItem\n";

 	// Set type if parent is known yet 

 	// if not, type is set in insertBranch or TreeItem::appendChild

 	if (parent==rootItem)

 		setType (MapCenter);

 	else

 		setType (Branch);

 	scrolled=false;

 	tmpUnscrolled=false;

 	includeImagesVer=false;

 	includeImagesHor=false;

 	lastSelectedBranchNum=-1;

 	lastSelectedBranchNumAlt=-1;

 }

 BranchItem::~BranchItem()

 {

 	//cout << "Destr. BranchItem "<<getHeadingStd()<<endl;

 	if (lmo) 

 	{

 		delete lmo;

 		lmo=NULL;

 	}

 }

 void BranchItem::copy (BranchItem *other)

 {

 	scrolled=other->scrolled;

 	tmpUnscrolled=other->tmpUnscrolled;

 }

 BranchItem* BranchItem::parentBranch ()

 {

 	return (BranchItem*) parentItem;

 }

 void BranchItem::insertBranch (int pos, BranchItem *branch)

 {

 	if (pos<0) pos=0;

 	if (pos>branchCounter) pos=branchCounter;

     childItems.insert(pos+branchOffset,branch);

 	branch->parentItem=this;

 	branch->rootItem=rootItem;

 	branch->setModel (model);

 	if (parentItem==rootItem)

 		setType (MapCenter);

 	else

 		setType (Branch);

 	if (branchCounter==0)

 		branchOffset=childItems.count()-1;

 	branchCounter++;

 }

 QString BranchItem::saveToDir (const QString &tmpdir,const QString &prefix, const QPointF& offset) //FIXME-3 Check if everything is saved...

 {

 	// Cloudy stuff can be hidden during exports

 	if (hidden) return QString();

     QString s,a;

 	BranchObj *bo=(BranchObj*)lmo;

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

 	QString scrolledAttr;

 	if (scrolled) 

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

 	else

 		scrolledAttr="";

 	// save area, if not scrolled	// FIXME-5 not needed if HTML is rewritten...

 									// also we should check if _any_ of parents is scrolled

 	QString areaAttr;

 	if (lmo && parentItem->isBranchLikeType() && !((BranchItem*)parentItem)->isScrolled() )

 	{

 		qreal x=lmo->getAbsPos().x();

 		qreal y=lmo->getAbsPos().y();

 		areaAttr=

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

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

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

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

 	} else

 		areaAttr="";

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

 	QString idAttr;

 	if (xlinkCount()>0)

 		idAttr=attribut ("id",model->getSelectString(this)); 

 	else

 		idAttr="";

 	QString elementName;

 	if (parentItem==rootItem)

 		elementName="mapcenter";

 	else	

 		elementName="branch";

     s=beginElement (elementName

 		+getMapAttr()

 		+getGeneralAttr()

 		+scrolledAttr 

 	//	+areaAttr	// FIXME-2

 		+idAttr 

 		+getIncludeImageAttr() 

 		);

     incIndent();

 	// save heading

     s+=valueElement("heading", getHeading(),

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

 	// Save frame  //FIXME-4 not saved if there is no LMO

 	if (lmo && ((OrnamentedObj*)lmo)->getFrame()->getFrameType()!=FrameObj::NoFrame) 

 		s+=((OrnamentedObj*)lmo)->getFrame()->saveToDir ();

 	// save names of flags set

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

 	// Save Images

 	for (int i=0; i<imageCount(); ++i)

 		s+=getImageNum(i)->saveToDir (tmpdir,prefix);

 	// save note

 	if (!note.isEmpty() )

 		s+=note.saveToDir();

 	// Save branches

 	int i=0;

 	TreeItem *ti=getBranchNum(i);

 	while (ti)

 	{

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

 		i++;

 		ti=getBranchNum(i);

 	}	

 	// Save XLinks 

 	QString ol;	// old link

 	QString cl;	// current link

 	for (int i=0; i<xlinkCount(); ++i)

 	{

 		cl=getXLinkNum(i)->saveToDir();

 		if (cl!=ol)

 		{

 			s+=cl;

 			ol=cl;

 		} else

 		{

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

 		}

 	}	

     decIndent();

     s+=endElement   (elementName);

     return s;

 }

 void BranchItem::updateVisibility()	

 {

 	// Needed to hide relinked branch, if parent is scrolled

 	if (lmo)

 		lmo->setVisibility(!((BranchItem*)parentItem)->isScrolled());

 }

 void BranchItem::setHeadingColor (QColor color)

 {

 	TreeItem::setHeadingColor (color);

 	if (lmo) ((BranchObj*)lmo)->setColor (color);

 }

 void BranchItem::unScroll()

 {

 	if (tmpUnscrolled) resetTmpUnscroll();

 	if (scrolled) toggleScroll();

 }

 bool BranchItem::toggleScroll()	

 {

 	BranchObj *bo=NULL;

 	if (scrolled)

 	{

 		scrolled=false;

 		systemFlags.deactivate("system-scrolledright");

 		if (branchCounter>0)

 		{

 			for (int i=0;i<branchCounter;++i)

 			{

 				bo=(BranchObj*)(getBranchNum(i)->getLMO());

 				if (bo) bo->setVisibility(true);

 			}

 		}

 	} else

 	{

 		scrolled=true;

 		systemFlags.activate("system-scrolledright");

 		if (branchCounter>0)

 		{

 			for (int i=0;i<branchCounter;++i)

 			{

 				bo=(BranchObj*)(getBranchNum(i)->getLMO());

 				if (bo) bo->setVisibility(false);

 			}

 		}

 	}

 	//model->reposition();	// FIXME-3 we don't really want to update view from here...

 	return true;

 }

 bool BranchItem::isScrolled()

 {

 	return scrolled;

 }

 bool BranchItem::hasScrolledParent(BranchItem *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;

 	BranchItem* bi=(BranchItem*)parentItem;

 	if (bi && bi!=rootItem ) 

 		return bi->hasScrolledParent(start);

 	else

 		return false;

 }

 bool BranchItem::tmpUnscroll()

 {

 	bool result=false;

 	// Unscroll parent (recursivly)

 	BranchItem * pi=(BranchItem*)parentItem;

 	if (pi && pi->isBranchLikeType() ) result=pi->tmpUnscroll();

 	// Unscroll myself

 	if (scrolled)

 	{

 		tmpUnscrolled=true;

 		systemFlags.activate("system-tmpUnscrolledRight");

 		toggleScroll();

 		model->emitDataHasChanged (this);

 		result=true;

 	}	

 	return result;

 }

 bool BranchItem::resetTmpUnscroll()

 {

 	bool result=false;

 	// Unscroll parent (recursivly)

 	BranchItem * pi=(BranchItem*)parentItem;

 	if (pi && pi->isBranchLikeType() ) result=pi->resetTmpUnscroll();

 	// Unscroll myself

 	if (tmpUnscrolled)

 	{

 		tmpUnscrolled=false;

 		systemFlags.deactivate("system-tmpUnscrolledRight");

 		toggleScroll();

 		model->emitDataHasChanged (this);

 		result=true;

 	}	

 	return result;

 }

 void BranchItem::sortChildren()

 {

 	int childCount=branchCounter; 

 	int curChildIndex;

 	bool madeChanges=false;

 	do

 	{

 		madeChanges=false;

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

 			BranchItem* curChild =getBranchNum(curChildIndex);

 			BranchItem* prevChild=getBranchNum(curChildIndex-1);

 			if(prevChild->getHeading().compare(curChild->getHeading())>0)

 			{

 				model->moveUp(curChild);

 				madeChanges=true;

 			}

 		}

 	}while(madeChanges);

 }

 void BranchItem::setIncludeImagesVer(bool b)

 {

 	includeImagesVer=b;

 	/* calcBBoxSize(); FIXME-3

 	positionBBox();

 	requestReposition();

 	*/

 }

 bool BranchItem::getIncludeImagesVer()

 {

 	return includeImagesVer;

 }

 void BranchItem::setIncludeImagesHor(bool b)

 {

 	includeImagesHor=b;

 	/* calcBBoxSize(); FIXME-3

 	positionBBox();

 	requestReposition();

 	*/

 }

 bool BranchItem::getIncludeImagesHor()

 {

 	return includeImagesHor;

 }

 QString BranchItem::getIncludeImageAttr()

 {

 	QString a;

 	if (includeImagesVer)

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

 	if (includeImagesHor)

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

 	return a;	

 }

 void BranchItem::setLastSelectedBranch()

 {

 	int d=depth();

 	if (d>=0)

 	{

 		if (d==1)

 			// Hack to save an additional lastSelected for mapcenters in MapEditor

 			// depending on orientation

 			// this allows to go both left and right from there

 			if (lmo && lmo->getOrientation()==LinkableMapObj::LeftOfCenter)

 			{

 				((BranchItem*)parentItem)->lastSelectedBranchNumAlt=parentItem->num(this);

 				return;

 			}

 		((BranchItem*)parentItem)->lastSelectedBranchNum=parentItem->num(this);

 	}

 }

 void BranchItem::setLastSelectedBranch(int i)

 {

 		lastSelectedBranchNum=i;

 }

 BranchItem* BranchItem::getLastSelectedBranch()

 {

 	if (lastSelectedBranchNum>=branchCounter)

 		return getBranchNum (branchCounter-1);

 	else	

 		return getBranchNum (lastSelectedBranchNum);

 }

 BranchItem* BranchItem::getLastSelectedBranchAlt()

 {

 	return getBranchNum (lastSelectedBranchNumAlt);

 }

 TreeItem* BranchItem::findMapItem (QPointF p, TreeItem* excludeTI)

 {

 	// Search branches

 	TreeItem *ti;

 	for (int i=0; i<branchCount(); ++i)

     {	

 		ti=getBranchNum(i)->findMapItem(p, excludeTI);

 		if (ti != NULL) return ti;

     }

 	// Search myself

     if (getBranchObj()->isInClickBox (p) && (this != excludeTI) && getBranchObj()->isVisibleObj() ) 

 		return this;

 	// Search images

 	ImageItem *ii;

     for (int i=0; i<imageCount(); ++i )

 	{

 		ii=getImageNum (i);

 		LinkableMapObj *mo=ii->getLMO();

 		if (mo && mo->isInClickBox(p) && 

 			(ii != excludeTI) && 

 			this!= excludeTI &&

 			mo->isVisibleObj() 

 		) return ii;

 	}

 	return NULL;

 }

 /*

 TreeItem* BranchItem::findID (QString sid)	//FIXME-3 move to TreeItem	//FIXME-4 search images

 {

 	// Search branches

     TreeItem *ti;

 	for (int i=0; i<branchCount(); ++i)

     {	

 		ti=getBranchNum(i)->findID (sid);

 		if (ti != NULL) return ti;

     }

 	// 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 BranchItem::updateStyles()

 {

 	// FIXME-5 compare also MapItem::initLMO...

 	if (lmo)

 	{ 

 		if ( parentItem != rootItem)

 			lmo->setParObj ( ((MapItem*)parentItem)->getLMO() );

 		else

 			lmo->setParObj (NULL);

 		((BranchObj*)lmo)->setDefAttr(BranchObj::MovedBranch);

 	}

 }

 BranchObj* BranchItem::getBranchObj()	// FIXME-3 only for transition BO->BI

 {

 	return (BranchObj*)lmo;

 }

 BranchObj* BranchItem::createMapObj(QGraphicsScene *scene)	// FIXME-4 maybe move this into MapEditor to get rid of scene in VymModel?

 {

 	BranchObj *newbo;

 	newbo=new BranchObj(scene,this);

 	lmo=newbo;

 	if (parentItem==rootItem)

 	{

 		newbo->setParObj(NULL);

 		//newbo->setFrameType (FrameObj::Rectangle);	//FIXME-4 maybe call updateStyles?

 	} else

 	{

 		newbo->setParObj( ((MapItem*)parentItem)->getLMO() );

 		// Set visibility depending on parents

 		if (parentItem!=rootItem && 

 			( ((BranchItem*)parentItem)->scrolled || !((MapItem*)parentItem)->getLMO()->isVisibleObj() ) )

 			newbo->setVisibility (false);

 	}

 	newbo->setDefAttr(BranchObj::NewBranch);

 	initLMO();

 	if (!getHeading().isEmpty() ) 

 	{

 		newbo->updateData();	//FIXME-3 maybe better model->emitDataHasChanged()?

 		newbo->setColor (headingColor);

 	}	

 	//newbo->updateLinkGeometry();	//FIXME-3

 	return newbo;

 }