main.cpp Example File | Qt WebKit Examples 5.4

- Qt 5.4
- Qt WebKit Examples
- Wheel Scroller Example
- main.cpp Example File
- Qt 5.4.2 Reference Documentation

# main.cpp Example File

webkitwidgets/scroller/wheel/main.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
    ** met:
    **   * Redistributions of source code must retain the above copyright
    **     notice, this list of conditions and the following disclaimer.
    **   * Redistributions in binary form must reproduce the above copyright
    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
    **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
    **     of its contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
    **
    **
    ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #include <QtWidgets>
    #include <qmath.h>

    #include "wheelwidget.h"

    class MainWindow : public QMainWindow
    {
        Q_OBJECT
    public:
        MainWindow(bool touch)
            : QMainWindow()
        {
            makeSlotMachine(touch);
            setCentralWidget(m_slotMachine);
        }

        void makeSlotMachine(bool touch)
        {
            if (QApplication::desktop()->width() > 1000) {
                QFont f = font();
                f.setPointSize(f.pointSize() * 2);
                setFont(f);
            }

            m_slotMachine = new QWidget(this);
            QGridLayout *grid = new QGridLayout(m_slotMachine);
            grid->setSpacing(20);

            QStringList colors;
            colors << "Red" << "Magenta" << "Peach" << "Orange" << "Yellow" << "Citro" << "Green" << "Cyan" << "Blue" << "Violet";

            m_wheel1 = new StringWheelWidget(touch);
            m_wheel1->setItems( colors );
            grid->addWidget( m_wheel1, 0, 0 );

            m_wheel2 = new StringWheelWidget(touch);
            m_wheel2->setItems( colors );
            grid->addWidget( m_wheel2, 0, 1 );

            m_wheel3 = new StringWheelWidget(touch);
            m_wheel3->setItems( colors );
            grid->addWidget( m_wheel3, 0, 2 );

            QPushButton *shakeButton = new QPushButton(tr("Shake"));
            connect(shakeButton, SIGNAL(clicked()), this, SLOT(rotateRandom()));

            grid->addWidget( shakeButton, 1, 0, 1, 3 );
        }

    private slots:
        void rotateRandom()
        {
            m_wheel1->scrollTo(m_wheel1->currentIndex() + (qrand() % 200));
            m_wheel2->scrollTo(m_wheel2->currentIndex() + (qrand() % 200));
            m_wheel3->scrollTo(m_wheel3->currentIndex() + (qrand() % 200));
        }

    private:
        QWidget *m_slotMachine;

        StringWheelWidget *m_wheel1;
        StringWheelWidget *m_wheel2;
        StringWheelWidget *m_wheel3;
    };

    int main(int argc, char **argv)
    {
        QApplication a(argc, argv);
        bool touch = a.arguments().contains(QLatin1String("--touch"));
        MainWindow mw(touch);
    #ifdef Q_WS_S60
        mw.showMaximized();
    #else
        mw.show();
    #endif
    #ifdef Q_WS_MAC
        mw.raise();
    #endif
        return a.exec();
    }

    #include "main.moc"