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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

/*
  window.cpp

  A minimal subclass of QTableView with slots to allow the selection model
  to be monitored.
*/

#include <QAbstractItemModel>
#include <QItemSelection>
#include <QItemSelectionModel>
#include <QMenu>
#include <QMenuBar>
#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);

    QMenu *actionMenu = new QMenu(tr("&Actions"), this);
    QAction *fillAction = actionMenu->addAction(tr("&Fill Selection"));
    QAction *clearAction = actionMenu->addAction(tr("&Clear Selection"));
    QAction *selectAllAction = actionMenu->addAction(tr("&Select All"));
    menuBar()->addMenu(actionMenu);

    connect(fillAction, SIGNAL(triggered()), this, SLOT(fillSelection()));
    connect(clearAction, SIGNAL(triggered()), this, SLOT(clearSelection()));
    connect(selectAllAction, SIGNAL(triggered()), this, SLOT(selectAll()));

    selectionModel = table->selectionModel();

    statusBar();
    setCentralWidget(table);
}

void MainWindow::fillSelection()
{
//! [0]
    QModelIndexList indexes = selectionModel->selectedIndexes();
    QModelIndex index;

    foreach(index, indexes) {
        QString text = QString("(%1,%2)").arg(index.row()).arg(index.column());
        model->setData(index, text);
    }
//! [0]
}

void MainWindow::clearSelection()
{
    QModelIndexList indexes = selectionModel->selectedIndexes();
    QModelIndex index;

    foreach(index, indexes)
        model->setData(index, "");
}

void MainWindow::selectAll()
{
//! [1]
    QModelIndex parent = QModelIndex();
//! [1] //! [2]
    QModelIndex topLeft = model->index(0, 0, parent);
    QModelIndex bottomRight = model->index(model->rowCount(parent)-1,
        model->columnCount(parent)-1, parent);
//! [2]

//! [3]
    QItemSelection selection(topLeft, bottomRight);
    selectionModel->select(selection, QItemSelectionModel::Select);
//! [3]
}