window.cpp Example File
painting/concentriccircles/window.cpp
/****************************************************************************
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** Copyright (C) 2005-2006 Trolltech AS. All rights reserved.
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** This file is part of the documentation of the Qt Toolkit.
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#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;
}