qt5base-lts/examples/graphicsview/chip/mainwindow.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 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 the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mainwindow.h"
#include "view.h"
#include "chip.h"
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#include <QtWidgets>
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 Example"));
}
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;
}
}
}