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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
void createCurveIcons();
int main(int argc, char **argv)
{
QApplication app(argc, argv);
createCurveIcons();
return app.exit();
}
void createCurveIcons()
{
QDir dir(QDir::current());
if (dir.dirName() == QLatin1String("debug") || dir.dirName() == QLatin1String("release")) {
dir.cdUp();
}
dir.cdUp();
dir.cdUp();
dir.cdUp();
QSize iconSize(128, 128);
QPixmap pix(iconSize);
QPainter painter(&pix);
QLinearGradient gradient(0,0, 0, iconSize.height());
gradient.setColorAt(0.0, QColor(240, 240, 240));
gradient.setColorAt(1.0, QColor(224, 224, 224));
QBrush brush(gradient);
const QMetaObject &mo = QEasingCurve::staticMetaObject;
QMetaEnum metaEnum = mo.enumerator(mo.indexOfEnumerator("Type"));
QFont oldFont = painter.font();
// Skip QEasingCurve::Custom
QString output(QString::fromAscii("%1/images").arg(dir.absolutePath()));
printf("Generating images to %s\n", qPrintable(output));
for (int i = 0; i < QEasingCurve::NCurveTypes - 1; ++i) {
painter.setFont(oldFont);
QString name(QLatin1String(metaEnum.key(i)));
painter.fillRect(QRect(QPoint(0, 0), iconSize), brush);
QEasingCurve curve((QEasingCurve::Type)i);
painter.setPen(QColor(0, 0, 255, 64));
qreal xAxis = iconSize.height()/1.5;
qreal yAxis = iconSize.width()/3;
painter.drawLine(0, xAxis, iconSize.width(), xAxis); // hor
painter.drawLine(yAxis, 0, yAxis, iconSize.height()); // ver
qreal curveScale = iconSize.height()/2;
painter.drawLine(yAxis - 2, xAxis - curveScale, yAxis + 2, xAxis - curveScale); // hor
painter.drawLine(yAxis + curveScale, xAxis + 2, yAxis + curveScale, xAxis - 2); // ver
painter.drawText(yAxis + curveScale - 8, xAxis - curveScale - 4, QLatin1String("(1,1)"));
painter.drawText(yAxis + 42, xAxis + 10, QLatin1String("progress"));
painter.drawText(15, xAxis - curveScale - 10, QLatin1String("value"));
painter.setPen(QPen(Qt::red, 1, Qt::DotLine));
painter.drawLine(yAxis, xAxis - curveScale, yAxis + curveScale, xAxis - curveScale); // hor
painter.drawLine(yAxis + curveScale, xAxis, yAxis + curveScale, xAxis - curveScale); // ver
QPoint start(yAxis, xAxis - curveScale * curve.valueForProgress(0));
painter.setPen(Qt::black);
QFont font = oldFont;
font.setPixelSize(oldFont.pixelSize() + 15);
painter.setFont(font);
painter.drawText(0, iconSize.height() - 20, iconSize.width(), 20, Qt::AlignHCenter, name);
QPainterPath curvePath;
curvePath.moveTo(start);
for (qreal t = 0; t <= 1.0; t+=1.0/curveScale) {
QPoint to;
to.setX(yAxis + curveScale * t);
to.setY(xAxis - curveScale * curve.valueForProgress(t));
curvePath.lineTo(to);
}
painter.setRenderHint(QPainter::Antialiasing, true);
painter.strokePath(curvePath, QColor(32, 32, 32));
painter.setRenderHint(QPainter::Antialiasing, false);
QString fileName(QString::fromAscii("qeasingcurve-%1.png").arg(name.toLower()));
printf("%s\n", qPrintable(fileName));
pix.save(QString::fromAscii("%1/%2").arg(output).arg(fileName), "PNG");
}
}
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