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    41 

    42 #include <QtGui>

    43 

    44 #include "mainwindow.h"

    45 #include "findfiledialog.h"

    46 

    47 //! [0]

    48 MainWindow::MainWindow()

    49 {

    50     textViewer = new QTextEdit;

    51     textViewer->setReadOnly(true);

    52     QFile file("documentation/intro.html");

    53     if (file.open(QIODevice::ReadOnly))

    54         textViewer->setHtml(file.readAll());

    55 

    56     setCentralWidget(textViewer);

    57 

    58     createActions();

    59     createMenus();

    60 

    61     initializeAssistant();

    62 

    63     setWindowTitle(tr("Simple Text Viewer"));

    64     resize(750, 400);

    65 }

    66 //! [0]

    67 

    68 //! [1]

    69 void MainWindow::closeEvent(QCloseEvent *)

    70 {

    71     if (assistantClient)

    72         assistantClient->closeAssistant();

    73 }

    74 //! [1]

    75 

    76 void MainWindow::about()

    77 {

    78     QMessageBox::about(this, tr("About Simple Text Viewer"),

    79                          tr("This example demonstrates how to use\n" \

    80                             "Qt Assistant as help system for your\n" \

    81                             "own application."));

    82 }

    83 

    84 //! [2]

    85 void MainWindow::assistant()

    86 {

    87     assistantClient->showPage(QLibraryInfo::location(QLibraryInfo::ExamplesPath) +

    88                                               QDir::separator() +

    89                                               "assistant/simpletextviewer/documentation/index.html");

    90 }

    91 //! [2]

    92 

    93 //! [3]

    94 void MainWindow::open()

    95 {

    96     FindFileDialog dialog(textViewer, assistantClient);

    97     dialog.exec();

    98 }

    99 //! [3]

   100 

   101 void MainWindow::createActions()

   102 {

   103     assistantAct = new QAction(tr("Help Contents"), this);

   104     assistantAct->setShortcuts(QKeySequence::HelpContents);

   105     connect(assistantAct, SIGNAL(triggered()), this, SLOT(assistant()));

   106 

   107     openAct = new QAction(tr("&Open..."), this);

   108     openAct->setShortcuts(QKeySequence::Open);

   109     connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

   110 

   111     clearAct = new QAction(tr("&Clear"), this);

   112     clearAct->setShortcut(tr("Ctrl+C"));

   113     connect(clearAct, SIGNAL(triggered()), textViewer, SLOT(clear()));

   114 

   115     exitAct = new QAction(tr("E&xit"), this);

   116     exitAct->setShortcuts(QKeySequence::Quit);

   117     connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

   118 

   119     aboutAct = new QAction(tr("&About"), this);

   120     connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

   121 

   122     aboutQtAct = new QAction(tr("About &Qt"), this);

   123     connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));

   124 }

   125 

   126 void MainWindow::createMenus()

   127 {

   128     fileMenu = new QMenu(tr("&File"), this);

   129     fileMenu->addAction(openAct);

   130     fileMenu->addAction(clearAct);

   131     fileMenu->addSeparator();

   132     fileMenu->addAction(exitAct);

   133 

   134     helpMenu = new QMenu(tr("&Help"), this);

   135     helpMenu->addAction(assistantAct);

   136     helpMenu->addSeparator();

   137     helpMenu->addAction(aboutAct);

   138     helpMenu->addAction(aboutQtAct);

   139 

   140 

   141     menuBar()->addMenu(fileMenu);

   142     menuBar()->addMenu(helpMenu);

   143 }

   144 

   145 //! [4]

   146 void MainWindow::initializeAssistant()

   147 {

   148     assistantClient = new QAssistantClient(QLibraryInfo::location(QLibraryInfo::BinariesPath), this);

   149 

   150     QStringList arguments;

   151     arguments << "-profile" << QString("documentation") + QDir::separator() + QString("simpletextviewer.adp");

   152     assistantClient->setArguments(arguments);

   153 }

   154 //! [4]