main.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** 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 The Qt Company Ltd 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 <QApplication>
 #include <QPainter>
 #include <QTime>
 #include "block.h"
 #include "window.h"

 QImage createImage(int width, int height)
 {
     QImage image(width, height, QImage::Format_RGB16);
     QPainter painter;
     QPen pen;
     pen.setStyle(Qt::NoPen);
     QBrush brush(Qt::blue);

     painter.begin(&image);
     painter.fillRect(image.rect(), brush);
     brush.setColor(Qt::white);
     painter.setPen(pen);
     painter.setBrush(brush);

     static const QPointF points1[3] = {
         QPointF(4, 4),
         QPointF(7, 4),
         QPointF(5.5, 1)
     };

     static const QPointF points2[3] = {
         QPointF(1, 4),
         QPointF(7, 4),
         QPointF(10, 10)
     };

     static const QPointF points3[3] = {
         QPointF(4, 4),
         QPointF(10, 4),
         QPointF(1, 10)
     };

     painter.setWindow(0, 0, 10, 10);

     int x = 0;
     int y = 0;
     int starWidth = image.width()/3;
     int starHeight = image.height()/3;

     QRect rect(x, y, starWidth, starHeight);

     for (int i = 0; i < 9; ++i) {

         painter.setViewport(rect);
         painter.drawPolygon(points1, 3);
         painter.drawPolygon(points2, 3);
         painter.drawPolygon(points3, 3);

         if (i % 3 == 2) {
             y = y + starHeight;
             rect.moveTop(y);

             x = 0;
             rect.moveLeft(x);

         } else {
             x = x + starWidth;
             rect.moveLeft(x);
         }
     }

     painter.end();
     return image;
 }

 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
     qRegisterMetaType<Block>();
     qsrand(QTime::currentTime().elapsed());

     Window window;
 #if defined(Q_WS_S60)
     window.showMaximized();
 #else
     window.show();
 #endif

     window.loadImage(createImage(256, 256));
     return app.exec();
 }