#include <QtGui>

#include "findresultitem.h"

#include "findresultmodel.h"

#include "treeitem.h"

FindResultModel::FindResultModel( QObject *parent)

    : QAbstractItemModel(parent)

{

    QVector<QVariant> rootData;

	rootData << "Heading";

    rootItem = new FindResultItem(rootData);

}

FindResultModel::~FindResultModel()

{

    delete rootItem;

}

void FindResultModel::clear()

{

	if (rootItem->childCount()>0)

		removeRows (0,rowCount (QModelIndex ()));

}

int FindResultModel::columnCount(const QModelIndex & /* parent */) const

{

    return rootItem->columnCount();

}

QVariant FindResultModel::data(const QModelIndex &index, int role) const

{

    if (!index.isValid())

        return QVariant();

    if (role != Qt::DisplayRole && role != Qt::EditRole)

        return QVariant();

    FindResultItem *item = getItem(index);

    return item->data(index.column());

}

Qt::ItemFlags FindResultModel::flags(const QModelIndex &index) const

{

    if (!index.isValid())

        return 0;

    return Qt::ItemIsEditable | Qt::ItemIsEnabled | Qt::ItemIsSelectable;

}

QVariant FindResultModel::headerData(int section, Qt::Orientation orientation,

                               int role) const

{

    if (orientation == Qt::Horizontal && role == Qt::DisplayRole)

        return rootItem->data(section);

    return QVariant();

}

QModelIndex FindResultModel::index (FindResultItem *fri)

{

	if (!fri->parent())

		return QModelIndex();

	else	

		return createIndex (fri->row(),0,fri);

}

QModelIndex FindResultModel::index(int row, int column, const QModelIndex &parent) const

{

    if (parent.isValid() && parent.column() != 0)

        return QModelIndex();

    FindResultItem *parentItem = getItem(parent);

    FindResultItem *childItem = parentItem->child(row);

    if (childItem)

        return createIndex(row, column, childItem);

    else

        return QModelIndex();

}

bool FindResultModel::insertColumns(int position, int columns, const QModelIndex &parent)

{

    bool success;

    beginInsertColumns(parent, position, position + columns - 1);

    success = rootItem->insertColumns(position, columns);

    endInsertColumns();

    return success;

}

bool FindResultModel::insertRows(int position, int rows, const QModelIndex &parent)

{

    FindResultItem *parentItem = getItem(parent);

    bool success;

    beginInsertRows(parent, position, position + rows - 1);

    success = parentItem->insertChildren(position, rows, rootItem->columnCount());

    endInsertRows();

    return success;

}

QModelIndex FindResultModel::parent(const QModelIndex &index) const

{

    if (!index.isValid())

        return QModelIndex();

    FindResultItem *childItem = getItem(index);

    FindResultItem *parentItem = childItem->parent();

    if (parentItem == rootItem)

        return QModelIndex();

    return createIndex(parentItem->childNumber(), 0, parentItem);

}

bool FindResultModel::removeColumns(int position, int columns, const QModelIndex &parent)

{

    bool success;

    beginRemoveColumns(parent, position, position + columns - 1);

    success = rootItem->removeColumns(position, columns);

    endRemoveColumns();

    if (rootItem->columnCount() == 0)

        removeRows(0, rowCount());

    return success;

}

bool FindResultModel::removeRows(int position, int rows, const QModelIndex &parent)

{

    FindResultItem *parentItem = getItem(parent);

    bool success = true;

    beginRemoveRows(parent, position, position + rows - 1);

    success = parentItem->removeChildren(position, rows);

    endRemoveRows();

    return success;

}

int FindResultModel::rowCount(const QModelIndex &parent) const

{

    FindResultItem *parentItem = getItem(parent);

    return parentItem->childCount();

}

bool FindResultModel::setData(const QModelIndex &index, const QVariant &value,

                        int role)

{

    if (role != Qt::EditRole)

        return false;

    FindResultItem *item = getItem(index);

    bool result = item->setData(index.column(), value);

    if (result)

        emit dataChanged(index, index);

    return result;

}

bool FindResultModel::setHeaderData(int section, Qt::Orientation orientation,

                              const QVariant &value, int role)

{

    if (role != Qt::EditRole || orientation != Qt::Horizontal)

        return false;

    bool result = rootItem->setData(section, value);

    if (result)

        emit headerDataChanged(orientation, section, section);

    return result;

}

FindResultItem* FindResultModel::getItem(const QModelIndex &index) const

{

    if (index.isValid()) {

        FindResultItem *item = static_cast<FindResultItem*>(index.internalPointer());

        if (item) return item;

    }

    return rootItem;

}

FindResultItem *FindResultModel::findTreeItem(TreeItem *)

{

	return NULL;	// FIXME-3 not used so far

}

FindResultItem*  FindResultModel::addItem (TreeItem *ti)

{

	FindResultItem *ni=NULL;

	if (ti)

	{

		QModelIndex parix (index (rootItem));

		emit (layoutAboutToBeChanged() );

		int n=rowCount (parix);

		beginInsertRows (parix,n,n);

		if (rootItem->insertChildren (n,1,0) )

		{

			QModelIndex ix=index(n,0,QModelIndex());

			setData (ix,QVariant(ti->getHeading()),Qt::EditRole);

			ni=getItem(ix);

			ni->setOriginal (ti);

		}

		endInsertRows ();

		emit (layoutChanged() );

	}

	return ni;

}

FindResultItem*  FindResultModel::addSubItem (FindResultItem *parent,const QString &s, TreeItem *pi, int i)

{

	FindResultItem *ni=NULL;

	if (pi && parent)

	{

		QModelIndex parix ( index (parent));

		emit (layoutAboutToBeChanged() );

		int n=rowCount (parix);

		beginInsertRows (parix,n,n);

		QModelIndex ix;

		if (parent->insertChildren (n,1,0))

		{

			ix=index(n,0,parix);

			setData (ix,QVariant(s),Qt::EditRole);

			ni=getItem(ix);

			ni->setOriginal (pi);

			ni->setOriginalIndex (i);

		}

		endInsertRows ();

		emit (layoutChanged() );

	}

	return ni;

}

void FindResultModel::setSearchString( const QString &s)

{

	searchString=s;

}

QString FindResultModel::getSearchString()

{

	return searchString;

}

void FindResultModel::setSearchFlags( QTextDocument::FindFlags f)

{

	searchFlags=f;

}

QTextDocument::FindFlags FindResultModel::getSearchFlags()

{

	return searchFlags;

}