axisanimation.cpp
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r0 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2016 The Qt Company Ltd. | ||||
** Contact: https://www.qt.io/licensing/ | ||||
** | ||||
** This file is part of the Qt Charts module of the Qt Toolkit. | ||||
** | ||||
** $QT_BEGIN_LICENSE:GPL$ | ||||
** Commercial License Usage | ||||
** Licensees holding valid commercial Qt licenses may use this file in | ||||
** accordance with the commercial license agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
** and conditions see https://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** GNU General Public License Usage | ||||
** Alternatively, this file may be used under the terms of the GNU | ||||
** General Public License version 3 or (at your option) any later version | ||||
** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include <private/axisanimation_p.h> | ||||
#include <private/chartaxiselement_p.h> | ||||
#include <private/qabstractaxis_p.h> | ||||
Q_DECLARE_METATYPE(QVector<qreal>) | ||||
QT_CHARTS_BEGIN_NAMESPACE | ||||
AxisAnimation::AxisAnimation(ChartAxisElement *axis, int duration, QEasingCurve &curve) | ||||
: ChartAnimation(axis), | ||||
m_axis(axis), | ||||
m_type(DefaultAnimation) | ||||
{ | ||||
setDuration(duration); | ||||
setEasingCurve(curve); | ||||
} | ||||
AxisAnimation::~AxisAnimation() | ||||
{ | ||||
} | ||||
void AxisAnimation::setAnimationType(Animation type) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
m_type = type; | ||||
} | ||||
void AxisAnimation::setAnimationPoint(const QPointF &point) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
m_point = point; | ||||
} | ||||
void AxisAnimation::setValues(QVector<qreal> &oldLayout, QVector<qreal> &newLayout) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) stop(); | ||||
switch (m_type) { | ||||
case ZoomOutAnimation: { | ||||
QRectF rect = m_axis->gridGeometry(); | ||||
oldLayout.resize(newLayout.count()); | ||||
for (int i = 0, j = oldLayout.count() - 1; i < (oldLayout.count() + 1) / 2; ++i, --j) { | ||||
oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.bottom(); | ||||
oldLayout[j] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.right() : rect.top(); | ||||
} | ||||
} | ||||
break; | ||||
case ZoomInAnimation: { | ||||
int index = qMin(oldLayout.count() * (m_axis->axis()->orientation() == Qt::Horizontal ? m_point.x() : (1 - m_point.y())), newLayout.count() - (qreal)1.0); | ||||
oldLayout.resize(newLayout.count()); | ||||
if (index < 0) | ||||
break; | ||||
for (int i = 0; i < oldLayout.count(); i++) | ||||
oldLayout[i] = oldLayout[index]; | ||||
} | ||||
break; | ||||
case MoveForwardAnimation: { | ||||
oldLayout.resize(newLayout.count()); | ||||
for (int i = 0, j = i + 1; i < oldLayout.count() - 1; ++i, ++j) | ||||
oldLayout[i] = oldLayout[j]; | ||||
} | ||||
break; | ||||
case MoveBackwordAnimation: { | ||||
oldLayout.resize(newLayout.count()); | ||||
for (int i = oldLayout.count() - 1, j = i - 1; i > 0; --i, --j) | ||||
oldLayout[i] = oldLayout[j]; | ||||
} | ||||
break; | ||||
default: { | ||||
oldLayout.resize(newLayout.count()); | ||||
QRectF rect = m_axis->gridGeometry(); | ||||
for (int i = 0, j = oldLayout.count() - 1; i < oldLayout.count(); ++i, --j) | ||||
oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.top(); | ||||
} | ||||
break; | ||||
} | ||||
QVariantAnimation::KeyValues value; | ||||
setKeyValues(value); //workaround for wrong interpolation call | ||||
setKeyValueAt(0.0, qVariantFromValue(oldLayout)); | ||||
setKeyValueAt(1.0, qVariantFromValue(newLayout)); | ||||
} | ||||
QVariant AxisAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const | ||||
{ | ||||
QVector<qreal> startVector = qvariant_cast<QVector<qreal> >(start); | ||||
QVector<qreal> endVecotr = qvariant_cast<QVector<qreal> >(end); | ||||
QVector<qreal> result; | ||||
Q_ASSERT(startVector.count() == endVecotr.count()) ; | ||||
for (int i = 0; i < startVector.count(); i++) { | ||||
qreal value = startVector[i] + ((endVecotr[i] - startVector[i]) * progress); | ||||
result << value; | ||||
} | ||||
return qVariantFromValue(result); | ||||
} | ||||
void AxisAnimation::updateCurrentValue(const QVariant &value) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) { //workaround | ||||
QVector<qreal> vector = qvariant_cast<QVector<qreal> >(value); | ||||
m_axis->setLayout(vector); | ||||
m_axis->updateGeometry(); | ||||
} | ||||
} | ||||
QT_CHARTS_END_NAMESPACE | ||||