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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "xyanimation_p.h"
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#include "xychartitem_p.h"
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Q_DECLARE_METATYPE(QVector<QPointF>)
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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XYAnimation::XYAnimation(XYChartItem *item):ChartAnimation(item),
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m_item(item),
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m_dirty(false)
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{
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}
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XYAnimation::~XYAnimation()
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{
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}
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void XYAnimation::setValues(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index)
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{
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int x = oldPoints.count();
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int y = newPoints.count();
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if (x != y && abs(x - y) != 1) {
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m_oldPoints = newPoints;
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oldPoints.resize(newPoints.size());
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setKeyValueAt(0.0, qVariantFromValue(oldPoints));
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setKeyValueAt(1.0, qVariantFromValue(newPoints));
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m_dirty = false;
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}
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else {
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if (m_dirty) {
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m_oldPoints = oldPoints;
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m_dirty = false;
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}
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oldPoints = newPoints;
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if (y < x)
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m_oldPoints.remove(index); //remove
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if (y > x)
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m_oldPoints.insert(index, x > 0 ? m_oldPoints[index-1] : newPoints[index]); //add
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setKeyValueAt(0.0, qVariantFromValue(m_oldPoints));
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setKeyValueAt(1.0, qVariantFromValue(newPoints));
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Q_ASSERT(m_oldPoints.count() == newPoints.count());
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}
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}
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QVariant XYAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress ) const
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{
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QVector<QPointF> startVector = qVariantValue<QVector<QPointF> >(start);
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QVector<QPointF> endVector = qVariantValue<QVector<QPointF> >(end);
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QVector<QPointF> result;
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switch (m_type) {
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case MoveDownAnimation: {
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if (startVector.count() != endVector.count())
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break;
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for(int i = 0; i < startVector.count(); i++) {
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qreal x = startVector[i].x() + ((endVector[i].x() - startVector[i].x()) * progress);
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qreal y = startVector[i].y() + ((endVector[i].y() - startVector[i].y()) * progress);
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result << QPointF(x, y);
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}
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}
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break;
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case LineDrawAnimation: {
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for(int i = 0; i < endVector.count() * qBound(0.0, progress, 1.0); i++)
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result << endVector[i];
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}
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break;
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default:
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qWarning() << "Unknown type of animation";
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break;
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}
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return qVariantFromValue(result);
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}
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void XYAnimation::updateCurrentValue (const QVariant &value)
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{
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if(state()!=QAbstractAnimation::Stopped){ //workaround
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m_dirty = true;
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QVector<QPointF> vector = qVariantValue<QVector<QPointF> >(value);
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m_item->setLayout(vector);
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}
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}
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QTCOMMERCIALCHART_END_NAMESPACE
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