/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd ** All rights reserved. ** For any questions to The Qt Company, please use contact form at http://qt.io ** ** This file is part of the Qt Charts module. ** ** Licensees holding valid commercial license for Qt may use this file in ** accordance with the Qt License Agreement provided with the Software ** or, alternatively, in accordance with the terms contained in a written ** agreement between you and The Qt Company. ** ** If you have questions regarding the use of this file, please use ** contact form at http://qt.io ** ****************************************************************************/ #include <private/baranimation_p.h> #include <private/abstractbarchartitem_p.h> Q_DECLARE_METATYPE(QVector<QRectF>) QT_CHARTS_BEGIN_NAMESPACE BarAnimation::BarAnimation(AbstractBarChartItem *item) : ChartAnimation(item), m_item(item) { setDuration(ChartAnimationDuration); setEasingCurve(QEasingCurve::OutQuart); } BarAnimation::~BarAnimation() { } QVariant BarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const { QVector<QRectF> startVector = qvariant_cast<QVector<QRectF> >(from); QVector<QRectF> endVector = qvariant_cast<QVector<QRectF> >(to); QVector<QRectF> result; Q_ASSERT(startVector.count() == endVector.count()); for (int i = 0; i < startVector.count(); i++) { QRectF start = startVector[i].normalized(); QRectF end = endVector[i].normalized(); qreal x1 = start.left() + progress * (end.left() - start.left()); qreal x2 = start.right() + progress * (end.right() - start.right()); qreal y1 = start.top() + progress * (end.top() - start.top()); qreal y2 = start.bottom() + progress * (end.bottom() - start.bottom()); QRectF value(QPointF(x1, y1), QPointF(x2, y2)); result << value.normalized(); } return qVariantFromValue(result); } void BarAnimation::updateCurrentValue(const QVariant &value) { if (state() != QAbstractAnimation::Stopped) { //workaround QVector<QRectF> layout = qvariant_cast<QVector<QRectF> >(value); m_item->setLayout(layout); } } void BarAnimation::setup(const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout) { QVariantAnimation::KeyValues value; setKeyValues(value); //workaround for wrong interpolation call setKeyValueAt(0.0, qVariantFromValue(oldLayout)); setKeyValueAt(1.0, qVariantFromValue(newLayout)); } #include "moc_baranimation_p.cpp" QT_CHARTS_END_NAMESPACE