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#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);

}