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/*

  window.cpp

  A minimal subclass of QTableView with slots to allow the selection model

  to be monitored.

*/

#include <QAbstractItemModel>

#include <QItemSelection>

#include <QItemSelectionModel>

#include <QStatusBar>

#include "model.h"

#include "window.h"

MainWindow::MainWindow(QWidget *parent)

    : QMainWindow(parent)

{

    setWindowTitle("Selected items in a table model");

    model = new TableModel(8, 4, this);

    table = new QTableView(this);

    table->setModel(model);

    selectionModel = table->selectionModel();

    connect(selectionModel,

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

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

    connect(selectionModel,

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

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

    statusBar();

    setCentralWidget(table);

}

//! [0]

void MainWindow::updateSelection(const QItemSelection &selected,

    const QItemSelection &deselected)

{

    QModelIndex index;

    QModelIndexList items = selected.indexes();

    foreach (index, items) {

        QString text = QString("(%1,%2)").arg(index.row()).arg(index.column());

        model->setData(index, text);

//! [0] //! [1]

    }

//! [1]

//! [2]

    items = deselected.indexes();

    foreach (index, items)

        model->setData(index, "");

}

//! [2]

//! [3]

void MainWindow::changeCurrent(const QModelIndex &current,

    const QModelIndex &previous)

{

    statusBar()->showMessage(

        tr("Moved from (%1,%2) to (%3,%4)")

            .arg(previous.row()).arg(previous.column())

            .arg(current.row()).arg(current.column()));

}

//! [3]