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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <private/axisanimation_p.h>
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#include <private/chartaxiselement_p.h>
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#include <private/qabstractaxis_p.h>
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Q_DECLARE_METATYPE(QVector<qreal>)
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QT_CHARTS_BEGIN_NAMESPACE
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AxisAnimation::AxisAnimation(ChartAxisElement *axis, int duration, QEasingCurve &curve)
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: ChartAnimation(axis),
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m_axis(axis),
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m_type(DefaultAnimation)
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{
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setDuration(duration);
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setEasingCurve(curve);
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}
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AxisAnimation::~AxisAnimation()
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{
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}
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void AxisAnimation::setAnimationType(Animation type)
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{
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if (state() != QAbstractAnimation::Stopped)
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stop();
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m_type = type;
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}
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void AxisAnimation::setAnimationPoint(const QPointF &point)
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{
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if (state() != QAbstractAnimation::Stopped)
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stop();
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m_point = point;
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}
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void AxisAnimation::setValues(QVector<qreal> &oldLayout, QVector<qreal> &newLayout)
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{
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if (state() != QAbstractAnimation::Stopped) stop();
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switch (m_type) {
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case ZoomOutAnimation: {
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QRectF rect = m_axis->gridGeometry();
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oldLayout.resize(newLayout.count());
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for (int i = 0, j = oldLayout.count() - 1; i < (oldLayout.count() + 1) / 2; ++i, --j) {
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oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.bottom();
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oldLayout[j] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.right() : rect.top();
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}
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}
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break;
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case ZoomInAnimation: {
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int index = qMin(oldLayout.count() * (m_axis->axis()->orientation() == Qt::Horizontal ? m_point.x() : (1 - m_point.y())), newLayout.count() - (qreal)1.0);
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oldLayout.resize(newLayout.count());
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if (index < 0)
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break;
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for (int i = 0; i < oldLayout.count(); i++)
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oldLayout[i] = oldLayout[index];
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}
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break;
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case MoveForwardAnimation: {
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oldLayout.resize(newLayout.count());
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for (int i = 0, j = i + 1; i < oldLayout.count() - 1; ++i, ++j)
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oldLayout[i] = oldLayout[j];
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}
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break;
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case MoveBackwordAnimation: {
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oldLayout.resize(newLayout.count());
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for (int i = oldLayout.count() - 1, j = i - 1; i > 0; --i, --j)
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oldLayout[i] = oldLayout[j];
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}
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break;
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default: {
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oldLayout.resize(newLayout.count());
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QRectF rect = m_axis->gridGeometry();
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for (int i = 0, j = oldLayout.count() - 1; i < oldLayout.count(); ++i, --j)
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oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.top();
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}
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break;
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}
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QVariantAnimation::KeyValues value;
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setKeyValues(value); //workaround for wrong interpolation call
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setKeyValueAt(0.0, qVariantFromValue(oldLayout));
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setKeyValueAt(1.0, qVariantFromValue(newLayout));
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}
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QVariant AxisAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const
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{
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QVector<qreal> startVector = qvariant_cast<QVector<qreal> >(start);
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QVector<qreal> endVecotr = qvariant_cast<QVector<qreal> >(end);
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QVector<qreal> result;
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Q_ASSERT(startVector.count() == endVecotr.count()) ;
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for (int i = 0; i < startVector.count(); i++) {
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qreal value = startVector[i] + ((endVecotr[i] - startVector[i]) * progress);
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result << value;
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}
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return qVariantFromValue(result);
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}
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void AxisAnimation::updateCurrentValue(const QVariant &value)
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{
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if (state() != QAbstractAnimation::Stopped) { //workaround
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QVector<qreal> vector = qvariant_cast<QVector<qreal> >(value);
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m_axis->setLayout(vector);
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m_axis->updateGeometry();
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}
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}
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QT_CHARTS_END_NAMESPACE
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