| /**************************************************************************** |
| ** |
| ** 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/baranimation_p.h> |
| #include <private/abstractbarchartitem_p.h> |
| |
| Q_DECLARE_METATYPE(QVector<QRectF>) |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| BarAnimation::BarAnimation(AbstractBarChartItem *item, int duration, QEasingCurve &curve) |
| : ChartAnimation(item), |
| m_item(item) |
| { |
| setDuration(duration); |
| setEasingCurve(curve); |
| } |
| |
| 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 QVariant::fromValue(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, QVariant::fromValue(oldLayout)); |
| setKeyValueAt(1.0, QVariant::fromValue(newLayout)); |
| } |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #include "moc_baranimation_p.cpp" |