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#include <QtGui>

#include "mainwindow.h"

#include "model.h"

MainWindow::MainWindow()

{

    QMenu *fileMenu = new QMenu(tr("&File"));

    QAction *quitAction = fileMenu->addAction(tr("E&xit"));

    quitAction->setShortcut(tr("Ctrl+Q"));

    QMenu *itemsMenu = new QMenu(tr("&Items"));

    insertAction = itemsMenu->addAction(tr("&Insert Item"));

    removeAction = itemsMenu->addAction(tr("&Remove Item"));

    QAction *ascendingAction = itemsMenu->addAction(tr("Sort in &Ascending Order"));

    QAction *descendingAction = itemsMenu->addAction(tr("Sort in &Descending Order"));

    menuBar()->addMenu(fileMenu);

    menuBar()->addMenu(itemsMenu);

    QStringList strings;

    strings << tr("Oak") << tr("Fir") << tr("Pine") << tr("Birch")

            << tr("Hazel") << tr("Redwood") << tr("Sycamore") << tr("Chestnut");

    model = new StringListModel(strings, this);

/*  For convenient quoting:

    QListView *listView = new QListView(this);

*/

    listView = new QListView(this);

    listView->setModel(model);

    listView->setSelectionMode(QAbstractItemView::SingleSelection);

    connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));

    connect(ascendingAction, SIGNAL(triggered()), this, SLOT(sortAscending()));

    connect(descendingAction, SIGNAL(triggered()), this, SLOT(sortDescending()));

    connect(insertAction, SIGNAL(triggered()), this, SLOT(insertItem()));

    connect(removeAction, SIGNAL(triggered()), this, SLOT(removeItem()));

    connect(listView->selectionModel(),

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

            this, SLOT(updateMenus(const QModelIndex &)));

    updateMenus(listView->selectionModel()->currentIndex());

    setCentralWidget(listView);

    setWindowTitle(tr("List View"));

}

void MainWindow::sortAscending()

{

    model->sort(0, Qt::AscendingOrder);

}

void MainWindow::sortDescending()

{

    model->sort(0, Qt::DescendingOrder);

}

void MainWindow::insertItem()

{

    QModelIndex currentIndex = listView->currentIndex();

    if (!currentIndex.isValid())

        return;

    QString itemText = QInputDialog::getText(this, tr("Insert Item"),

        tr("Input text for the new item:"));

    if (itemText.isNull())

        return;

    if (model->insertRow(currentIndex.row(), QModelIndex())) {

        QModelIndex newIndex = model->index(currentIndex.row(), 0, QModelIndex());

        model->setData(newIndex, itemText, Qt::EditRole);

        QString toolTipText = tr("Tooltip:") + itemText;

        QString statusTipText = tr("Status tip:") + itemText;

        QString whatsThisText = tr("What's This?:") + itemText;

        model->setData(newIndex, toolTipText, Qt::ToolTipRole);

        model->setData(newIndex, toolTipText, Qt::StatusTipRole);

        model->setData(newIndex, whatsThisText, Qt::WhatsThisRole);

    }

}

void MainWindow::removeItem()

{

    QModelIndex currentIndex = listView->currentIndex();

    if (!currentIndex.isValid())

        return;

    model->removeRow(currentIndex.row(), QModelIndex());

}

void MainWindow::updateMenus(const QModelIndex &current)

{

    insertAction->setEnabled(current.isValid());

    removeAction->setEnabled(current.isValid());

}