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mainwindow.cpp Example File
demos/chip/mainwindow.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information (qt-info@nokia.com)
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License versions 2.0 or 3.0 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.fsf.org/licensing/licenses/info/GPLv2.html and
 ** http://www.gnu.org/copyleft/gpl.html.  In addition, as a special
 ** exception, Nokia gives you certain additional rights. These rights
 ** are described in the Nokia Qt GPL Exception version 1.3, included in
 ** the file GPL_EXCEPTION.txt in this package.
 **
 ** Qt for Windows(R) Licensees
 ** As a special exception, Nokia, as the sole copyright holder for Qt
 ** Designer, grants users of the Qt/Eclipse Integration plug-in the
 ** right for the Qt/Eclipse Integration to link to functionality
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 ****************************************************************************/

 #include "mainwindow.h"
 #include "view.h"
 #include "chip.h"

 #include <QtGui>

 MainWindow::MainWindow(QWidget *parent)
     : QWidget(parent)
 {
     populateScene();

     h1Splitter = new QSplitter;
     h2Splitter = new QSplitter;

     QSplitter *vSplitter = new QSplitter;
     vSplitter->setOrientation(Qt::Vertical);
     vSplitter->addWidget(h1Splitter);
     vSplitter->addWidget(h2Splitter);

     View *view = new View("Top left view");
     view->view()->setScene(scene);
     h1Splitter->addWidget(view);

     view = new View("Top right view");
     view->view()->setScene(scene);
     h1Splitter->addWidget(view);

     view = new View("Bottom left view");
     view->view()->setScene(scene);
     h2Splitter->addWidget(view);

     view = new View("Bottom right view");
     view->view()->setScene(scene);
     h2Splitter->addWidget(view);

     QHBoxLayout *layout = new QHBoxLayout;
     layout->addWidget(vSplitter);
     setLayout(layout);

     setWindowTitle(tr("Chip Demo"));
 }

 void MainWindow::populateScene()
 {
     scene = new QGraphicsScene;

     QImage image(":/qt4logo.png");

     // Populate scene
     int xx = 0;
     int nitems = 0;
     for (int i = -11000; i < 11000; i += 110) {
         ++xx;
         int yy = 0;
         for (int j = -7000; j < 7000; j += 70) {
             ++yy;
             qreal x = (i + 11000) / 22000.0;
             qreal y = (j + 7000) / 14000.0;

             QColor color(image.pixel(int(image.width() * x), int(image.height() * y)));
             QGraphicsItem *item = new Chip(color, xx, yy);
             item->setPos(QPointF(i, j));
             scene->addItem(item);

             ++nitems;
         }
     }
 }

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