/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtCore/QLibraryInfo>
#include <QtGui/QApplication>
#include <QtGui/QAction>
#include <QtGui/QMenu>
#include <QtGui/QMenuBar>
#include <QtGui/QMessageBox>

#include "mainwindow.h"
#include "findfiledialog.h"
#include "assistant.h"
#include "textedit.h"

// ![0]
MainWindow::MainWindow()
{
    assistant = new Assistant;
// ![0]
    textViewer = new TextEdit;
    textViewer->setContents(QLibraryInfo::location(QLibraryInfo::ExamplesPath)
            + QLatin1String("/help/simpletextviewer/documentation/intro.html"));
    setCentralWidget(textViewer);

    createActions();
    createMenus();

    setWindowTitle(tr("Simple Text Viewer"));
    resize(750, 400);
// ![1]
}
//! [1]

//! [2]
void MainWindow::closeEvent(QCloseEvent *)
{
    delete assistant;
}
//! [2]

void MainWindow::about()
{
    QMessageBox::about(this, tr("About Simple Text Viewer"),
                       tr("This example demonstrates how to use\n"
                          "Qt Assistant as help system for your\n"
                          "own application."));
}

//! [3]
void MainWindow::showDocumentation()
{
    assistant->showDocumentation("index.html");    
}
//! [3]

void MainWindow::open()
{
    FindFileDialog dialog(textViewer, assistant);
    dialog.exec();
}

//! [4]
void MainWindow::createActions()
{
    assistantAct = new QAction(tr("Help Contents"), this);
    assistantAct->setShortcut(QKeySequence::HelpContents);
    connect(assistantAct, SIGNAL(triggered()), this, SLOT(showDocumentation()));
//! [4]

    openAct = new QAction(tr("&Open..."), this);
    openAct->setShortcut(QKeySequence::Open);
    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

    clearAct = new QAction(tr("&Clear"), this);
    clearAct->setShortcut(tr("Ctrl+C"));
    connect(clearAct, SIGNAL(triggered()), textViewer, SLOT(clear()));

    exitAct = new QAction(tr("E&xit"), this);
    exitAct->setShortcuts(QKeySequence::Quit);
    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

    aboutAct = new QAction(tr("&About"), this);
    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

    aboutQtAct = new QAction(tr("About &Qt"), this);
    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
//! [5]
}
//! [5]

void MainWindow::createMenus()
{
    fileMenu = new QMenu(tr("&File"), this);
    fileMenu->addAction(openAct);
    fileMenu->addAction(clearAct);
    fileMenu->addSeparator();
    fileMenu->addAction(exitAct);

    helpMenu = new QMenu(tr("&Help"), this);
    helpMenu->addAction(assistantAct);
    helpMenu->addSeparator();
    helpMenu->addAction(aboutAct);
    helpMenu->addAction(aboutQtAct);


    menuBar()->addMenu(fileMenu);
    menuBar()->addMenu(helpMenu);
}