#include "vymview.h"

#include <iostream>

using namespace std;

#include "linkablemapobj.h"

#include "mainwindow.h"

#include "mapeditor.h"

extern Main *mainWindow;

VymView::VymView(VymModel *m)

{

	model=m;

	// Create TreeView

	treeview=new QTreeView;

	treeview->setModel ((QAbstractItemModel*)model);

	//treeview->setMinimumWidth (50);

	treeview->setColumnWidth (0,350);

	selModel=treeview->selectionModel();

	model->setSelectionModel (selModel);

	connect (

		selModel, SIGNAL (selectionChanged(const QItemSelection &, const QItemSelection &)), 

		this,SLOT (changeSelection(const QItemSelection &,const QItemSelection &)));

	// Create good old MapEditor

	mapEditor=model->getMapEditor();

	if (!mapEditor) mapEditor=new MapEditor (model);

	connect (

		selModel, SIGNAL (selectionChanged(const QItemSelection &, const QItemSelection &)), 

		mapEditor,SLOT (updateSelection(const QItemSelection &,const QItemSelection &)));

		/*

	connect (

		selModel, SIGNAL (currentChanged(const QModelIndex &, const QModelIndex &)), 

		me,SLOT (updateCurrent(const QModelIndex &,const QModelIndex &)));

		*/

		/*

*/

	connect (

		model, SIGNAL (dataChanged(const QModelIndex &, const QModelIndex &)), 

		mapEditor,SLOT (updateData(const QModelIndex &) ) );

	// VymModel may want to update selection or other data, e.g. during animation

	connect (

		model, SIGNAL (selectionChanged(const QItemSelection &, const QItemSelection &)), 

		mapEditor,SLOT (updateSelection(const QItemSelection &,const QItemSelection &)));

		/*

	connect (

		model, SIGNAL (newChildObject(QModelIndex) ),

		this,SLOT (updateChilds (QModelIndex) ) );

*/

	connect (

		model, SIGNAL (noteHasChanged(QModelIndex) ),

		mainWindow, SLOT (updateNoteEditor (QModelIndex) ) );

	connect (

		model, SIGNAL (expandAll() ),

		this, SLOT (expandAll () ) );

	connect (

		model, SIGNAL (showSelection() ),

		this, SLOT (showSelection() ) );

	//mapEditor->viewport()->setFocus();	//FIXmapEditor-3 needed?

	mapEditor->setAntiAlias (mainWindow->isAliased());

	mapEditor->setSmoothPixmap(mainWindow->hasSmoothPixmapTransform());

	addWidget (treeview);

	addWidget (mapEditor);

	// Set geometry

	QList <int> widths;

	widths<<120;

	widths<<600;

	setSizes(widths);

}

QItemSelectionModel* VymView::selectionModel() 

{

	if (treeview) 

		return selModel;

	else 

		std::cout <<"VymView::selectionModel: hey, no treeview so far???\n";

	return NULL;

}

void VymView::updateChilds (QModelIndex ix)		//FIXME-4 not needed?

{

	cout << "VV::updateChilds \n";

	//treeview->setExpanded (ix,true);	// This is expensive...

}

void VymView::changeSelection (const QItemSelection &newsel, const QItemSelection &oldsel)

{

	/*

	cout <<"VymView::changeSelection (";

	if (!newsel.indexes().isEmpty() )

		cout << model->getItem(newsel.indexes().first() )->getHeading().toStdString();

	cout << " <- ";

	if (!oldsel.indexes().isEmpty() )

		cout << model->getItem(oldsel.indexes().first() )->getHeading().toStdString();

	cout << ")\n";

	*/

	// Notify mainwindow to update satellites like NoteEditor, if needed (model==currenModel...)

	mainWindow->changeSelection (model,newsel,oldsel);	// FIXME-3 maybe connect VymModel <-> MainWindow directly?

}

void VymView::expandAll()

{

	treeview->expandAll();

}

void VymView::showSelection()

{

	treeview->scrollTo(

		model->getSelectedIndex(), 

		//QAbstractItemView::PositionAtCenter   

		QAbstractItemView::EnsureVisible

	);

	LinkableMapObj* lmo=model->getSelectedLMO();

	if (lmo)

		mapEditor->ensureVisible(lmo->getBBox() );

}