Qt 4.0: main.cpp Example File (activeqt/webbrowser/main.cpp)

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# main.cpp Example File
activeqt/webbrowser/main.cpp

        /****************************************************************************
        **
        ** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 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 GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
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    ** sales department at sales@trolltech.com.
        **
        ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        **
        ****************************************************************************/

        #include <qapplication.h>
        #include <qmessagebox.h>
        #include <qprogressbar.h>
        #include <qstatusbar.h>

        #include <qmainwindow.h>
        #include "ui_mainwindow.h"

        class MainWindow : public QMainWindow, public Ui::MainWindow
        {
            Q_OBJECT
        public:
            MainWindow();

        public slots:
            void on_WebBrowser_TitleChange(const QString &title);
            void on_WebBrowser_ProgressChange(int a, int b);
            void on_WebBrowser_CommandStateChange(int cmd, bool on);
            void on_WebBrowser_BeforeNavigate();
            void on_WebBrowser_NavigateComplete(QString);

            void on_actionGo_triggered();
            void on_actionNewWindow_triggered();
            void on_actionAbout_triggered();
            void on_actionAboutQt_triggered();

        private:
            QProgressBar *pb;
        };

        MainWindow::MainWindow()
        {
            setupUi(this);

            connect(addressEdit, SIGNAL(returnPressed()), actionGo, SLOT(trigger()));
            connect(actionBack, SIGNAL(triggered()), WebBrowser, SLOT(GoBack()));
            connect(actionForward, SIGNAL(triggered()), WebBrowser, SLOT(GoForward()));
            connect(actionStop, SIGNAL(triggered()), WebBrowser, SLOT(Stop()));
            connect(actionRefresh, SIGNAL(triggered()), WebBrowser, SLOT(Refresh()));
            connect(actionHome, SIGNAL(triggered()), WebBrowser, SLOT(GoHome()));
            connect(actionSearch, SIGNAL(triggered()), WebBrowser, SLOT(GoSearch()));

            pb = new QProgressBar(statusBar());
            pb->setTextVisible(false);
            pb->hide();
            statusBar()->addPermanentWidget(pb);

            WebBrowser->dynamicCall("GoHome()");
        }

        void MainWindow::on_WebBrowser_TitleChange(const QString &title)
        {
            setWindowTitle("Qt WebBrowser - " + title);
        }

        void MainWindow::on_WebBrowser_ProgressChange(int a, int b)
        {
            if (a <= 0 || b <= 0) {
                pb->hide();
                return;
            }
            pb->show();
            pb->setRange(0, b);
            pb->setValue(a);
        }

        void MainWindow::on_WebBrowser_CommandStateChange(int cmd, bool on)
        {
            switch (cmd) {
            case 1:
                actionForward->setEnabled(on);
                break;
            case 2:
                actionBack->setEnabled(on);
                break;
            }
        }

        void MainWindow::on_WebBrowser_BeforeNavigate()
        {
            actionStop->setEnabled(true);
        }

        void MainWindow::on_WebBrowser_NavigateComplete(QString)
        {
            actionStop->setEnabled(false);
        }

        void MainWindow::on_actionGo_triggered()
        {
            WebBrowser->dynamicCall("Navigate(const QString&)", addressEdit->text());
        }

        void MainWindow::on_actionNewWindow_triggered()
        {
            MainWindow *window = new MainWindow;
            window->show();
            if (addressEdit->text().isEmpty())
                return;
            window->addressEdit->setText(addressEdit->text());
            window->actionStop->setEnabled(true);
            window->on_actionGo_triggered();
        }

        void MainWindow::on_actionAbout_triggered()
        {
            QMessageBox::about(this, tr("About WebBrowser"),
                        tr("This Example has been created using the ActiveQt integration into Qt Designer.\n"
                           "It demonstrates the use of QAxWidget to embed the Internet Explorer ActiveX\n"
                           "control into a Qt application."));
        }

        void MainWindow::on_actionAboutQt_triggered()
        {
            QMessageBox::aboutQt(this, tr("About Qt"));
        }

        #include "main.moc"

        int main(int argc, char ** argv)
        {
            QApplication a(argc, argv);
            MainWindow w;
            w.show();
            return a.exec();
        }