xyanimation.cpp
153 lines
| 4.5 KiB
| text/x-c
|
CppLexer
Jani Honkonen
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r794 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
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r2688 | ** Copyright (C) 2014 Digia Plc | ||
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Jani Honkonen
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r794 | ** All rights reserved. | ||
Titta Heikkala
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r2740 | ** For any questions to Digia, please use contact form at http://qt.io | ||
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Jani Honkonen
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r794 | ** | ||
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Titta Heikkala
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r2740 | ** This file is part of the Qt Charts module. | ||
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Jani Honkonen
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r794 | ** | ||
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Titta Heikkala
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r2740 | ** 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 Digia. | ||||
|
Jani Honkonen
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r794 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
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r2740 | ** contact form at http://qt.io | ||
|
Jani Honkonen
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r794 | ** | ||
| ****************************************************************************/ | ||||
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Titta Heikkala
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r2714 | #include <private/xyanimation_p.h> | ||
| #include <private/xychart_p.h> | ||||
| #include <QtCore/QDebug> | ||||
Michal Klocek
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r530 | |||
| Q_DECLARE_METATYPE(QVector<QPointF>) | ||||
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Titta Heikkala
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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Michal Klocek
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r530 | |||
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Jani Honkonen
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r2097 | XYAnimation::XYAnimation(XYChart *item) | ||
| : ChartAnimation(item), | ||||
| m_type(NewAnimation), | ||||
| m_dirty(false), | ||||
| m_index(-1), | ||||
| m_item(item) | ||||
|
Michal Klocek
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r530 | { | ||
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r1241 | setDuration(ChartAnimationDuration); | ||
| setEasingCurve(QEasingCurve::OutQuart); | ||||
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Michal Klocek
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r530 | } | ||
| XYAnimation::~XYAnimation() | ||||
| { | ||||
| } | ||||
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Michal Klocek
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r1271 | void XYAnimation::setup(const QVector<QPointF> &oldPoints, const QVector<QPointF> &newPoints, int index) | ||
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Michal Klocek
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r1217 | { | ||
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Jani Honkonen
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r2097 | m_type = NewAnimation; | ||
| if (state() != QAbstractAnimation::Stopped) { | ||||
| stop(); | ||||
| m_dirty = false; | ||||
| } | ||||
| if (!m_dirty) { | ||||
| m_dirty = true; | ||||
| m_oldPoints = oldPoints; | ||||
| } | ||||
| m_newPoints = newPoints; | ||||
| int x = m_oldPoints.count(); | ||||
| int y = m_newPoints.count(); | ||||
Miikka Heikkinen
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r2489 | int diff = x - y; | ||
| int requestedDiff = oldPoints.count() - y; | ||||
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Jani Honkonen
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r2097 | |||
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Miikka Heikkinen
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r2489 | // m_oldPoints can be whatever between 0 and actual points count if new animation setup | ||
| // interrupts a previous animation, so only do remove and add animations if both | ||||
| // stored diff and requested diff indicate add or remove. Also ensure that index is not | ||||
| // invalid. | ||||
| if (diff == 1 && requestedDiff == 1 && index >= 0 && y > 0 && index <= y) { | ||||
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Jani Honkonen
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r2097 | //remove point | ||
| m_newPoints.insert(index, index > 0 ? newPoints[index - 1] : newPoints[index]); | ||||
| m_index = index; | ||||
| m_type = RemovePointAnimation; | ||||
| } | ||||
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Miikka Heikkinen
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r2489 | if (diff == -1 && requestedDiff == -1 && index >= 0 && index <= x) { | ||
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Jani Honkonen
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r2097 | //add point | ||
| m_oldPoints.insert(index, index > 0 ? newPoints[index - 1] : newPoints[index]); | ||||
| m_index = index; | ||||
| m_type = AddPointAnimation; | ||||
| } | ||||
| x = m_oldPoints.count(); | ||||
| y = m_newPoints.count(); | ||||
| if (x != y) | ||||
| m_type = NewAnimation; | ||||
| else if (m_type == NewAnimation) | ||||
| m_type = ReplacePointAnimation; | ||||
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Michal Klocek
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r1241 | |||
| setKeyValueAt(0.0, qVariantFromValue(m_oldPoints)); | ||||
| setKeyValueAt(1.0, qVariantFromValue(m_newPoints)); | ||||
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Michal Klocek
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r530 | } | ||
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Jani Honkonen
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r2097 | QVariant XYAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const | ||
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Michal Klocek
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r530 | { | ||
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Jani Honkonen
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r2241 | QVector<QPointF> startVector = qvariant_cast<QVector<QPointF> >(start); | ||
| QVector<QPointF> endVector = qvariant_cast<QVector<QPointF> >(end); | ||||
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Michal Klocek
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r530 | QVector<QPointF> result; | ||
Marek Rosa
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r738 | switch (m_type) { | ||
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r602 | |||
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r1241 | case ReplacePointAnimation: | ||
| case AddPointAnimation: | ||||
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r2097 | case RemovePointAnimation: { | ||
| if (startVector.count() != endVector.count()) | ||||
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Michal Klocek
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r530 | break; | ||
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r738 | |||
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Jani Honkonen
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r2097 | for (int i = 0; i < startVector.count(); i++) { | ||
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Marek Rosa
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r738 | qreal x = startVector[i].x() + ((endVector[i].x() - startVector[i].x()) * progress); | ||
| qreal y = startVector[i].y() + ((endVector[i].y() - startVector[i].y()) * progress); | ||||
| result << QPointF(x, y); | ||||
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Michal Klocek
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r530 | } | ||
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r738 | |||
| } | ||||
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r2097 | break; | ||
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r1241 | case NewAnimation: { | ||
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Jani Honkonen
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r2097 | for (int i = 0; i < endVector.count() * qBound(qreal(0), progress, qreal(1)); i++) | ||
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Marek Rosa
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r738 | result << endVector[i]; | ||
| } | ||||
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Jani Honkonen
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r2097 | break; | ||
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Marek Rosa
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r738 | default: | ||
| qWarning() << "Unknown type of animation"; | ||||
| break; | ||||
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Michal Klocek
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r530 | } | ||
| return qVariantFromValue(result); | ||||
| } | ||||
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Jani Honkonen
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r2097 | void XYAnimation::updateCurrentValue(const QVariant &value) | ||
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Michal Klocek
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r530 | { | ||
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Jani Honkonen
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r2097 | if (state() != QAbstractAnimation::Stopped) { //workaround | ||
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Michal Klocek
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r1271 | |||
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Jani Honkonen
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r2241 | QVector<QPointF> vector = qvariant_cast<QVector<QPointF> >(value); | ||
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Michal Klocek
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r1217 | m_item->setGeometryPoints(vector); | ||
| m_item->updateGeometry(); | ||||
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Michal Klocek
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r1241 | m_item->setDirty(true); | ||
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Jani Honkonen
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r2097 | m_dirty = false; | ||
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Michal Klocek
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r1271 | |||
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Michal Klocek
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r530 | } | ||
| } | ||||
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Jani Honkonen
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r2097 | void XYAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState) | ||
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Michal Klocek
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r1241 | { | ||
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Jani Honkonen
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r2097 | if (oldState == QAbstractAnimation::Running && newState == QAbstractAnimation::Stopped) { | ||
| if (m_item->isDirty() && m_type == RemovePointAnimation) { | ||||
| if (!m_newPoints.isEmpty()) | ||||
| m_newPoints.remove(m_index); | ||||
| m_item->setGeometryPoints(m_newPoints); | ||||
| } | ||||
| } | ||||
|
Michal Klocek
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r1241 | } | ||
| #include "moc_chartanimation_p.cpp" | ||||
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Titta Heikkala
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r2712 | QT_CHARTS_END_NAMESPACE | ||