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43 #include <QtQuick/QQuickView>
44 #include <QApplication>
45 #include <QEasingCurve>
46 #include <QtQuick/QQuickPaintedItem>
48 class EasingPlot : public QQuickPaintedItem
51 Q_PROPERTY(QEasingCurve easing READ easing WRITE setEasing NOTIFY easingChanged);
56 QEasingCurve easing() const;
57 void setEasing(const QEasingCurve &);
63 virtual void paint(QPainter *painter);
66 QEasingCurve m_easing;
69 EasingPlot::EasingPlot()
73 QEasingCurve EasingPlot::easing() const
78 void EasingPlot::setEasing(const QEasingCurve &e)
89 void EasingPlot::paint(QPainter *painter)
91 QPointF lastPoint(0, 0);
93 for (int ii = 1; ii <= 100; ++ii) {
94 qreal value = m_easing.valueForProgress(qreal(ii) / 100.);
96 QPointF currentPoint(width() * qreal(ii) / 100., value * (height() - 1));
97 painter->drawLine(lastPoint, currentPoint);
99 lastPoint = currentPoint;
103 int main(int argc, char ** argv)
105 QApplication app(argc, argv);
107 qmlRegisterType<EasingPlot>("EasingPlot", 1, 0, "EasingPlot");
110 view.setSource(QUrl("qrc:/easing.qml"));