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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">window.cpp Example File<br /><small><small>painting/concentriccircles/window.cpp</small></small></h1>

<pre>  /****************************************************************************

** This file is part of the documentation of the Qt Toolkit.

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** as defined by Trolltech AS of Norway and appearing in the file

** LICENSE.QPL included in the packaging of this file.

** This file may be distributed and/or modified under the terms of the

** GNU General Public License version 2 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.

** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for

** information about Qt Commercial License Agreements.

** See http://www.trolltech.com/qpl/ for QPL licensing information.

** See http://www.trolltech.com/gpl/ for GPL licensing information.

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** 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 <QtGui>

#include "circlewidget.h"

#include "window.h"

Window::Window()

{

aliasedLabel = createLabel(tr("Aliased"));

antialiasedLabel = createLabel(tr("Antialiased"));

intLabel = createLabel(tr("Int"));

floatLabel = createLabel(tr("Float"));

QGridLayout *layout = new QGridLayout;

layout->addWidget(aliasedLabel, 0, 1);

layout->addWidget(antialiasedLabel, 0, 2);

layout->addWidget(intLabel, 1, 0);

layout->addWidget(floatLabel, 2, 0);

QTimer *timer = new QTimer(this);

for (int i = 0; i < 2; ++i) {

for (int j = 0; j < 2; ++j) {

circleWidgets[i][j] = new CircleWidget;

circleWidgets[i][j]->setAntialiased(j != 0);

circleWidgets[i][j]->setFloatBased(i != 0);

connect(timer, SIGNAL(timeout()),

circleWidgets[i][j], SLOT(nextAnimationFrame()));

layout->addWidget(circleWidgets[i][j], i + 1, j + 1);

}

timer->start(100);

setLayout(layout);

setWindowTitle(tr("Concentric Circles"));

}

QLabel *Window::createLabel(const QString &text)

{

QLabel *label = new QLabel(text);

label->setAlignment(Qt::AlignCenter);

label->setMargin(2);

label->setFrameStyle(QFrame::Box | QFrame::Sunken);

return label;

}</pre>

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