baranimation.cpp
73 lines
| 2.1 KiB
| text/x-c
|
CppLexer
Jani Honkonen
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r794 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2012 Digia Plc | ||||
** All rights reserved. | ||||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
** This file is part of the Qt Commercial Charts Add-on. | ||||
** | ||||
** $QT_BEGIN_LICENSE$ | ||||
** Licensees holding valid Qt Commercial licenses may use this file in | ||||
** accordance with the Qt Commercial License Agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and Digia. | ||||
** | ||||
** If you have questions regarding the use of this file, please use | ||||
** contact form at http://qt.digia.com | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
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r671 | #include "baranimation_p.h" | ||
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r1674 | #include "abstractbarchartitem_p.h" | ||
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r671 | #include <QTimer> | ||
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r681 | Q_DECLARE_METATYPE(QVector<QRectF>) | ||
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r671 | |||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r1674 | BarAnimation::BarAnimation(AbstractBarChartItem *item) | ||
Jani Honkonen
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r2097 | : AbstractBarAnimation(item) | ||
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r671 | { | ||
Michal Klocek
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r1734 | |||
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r671 | } | ||
BarAnimation::~BarAnimation() | ||||
{ | ||||
} | ||||
QVariant BarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const | ||||
{ | ||||
Marek Rosa
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r738 | QVector<QRectF> startVector = qVariantValue<QVector<QRectF> >(from); | ||
QVector<QRectF> endVector = qVariantValue<QVector<QRectF> >(to); | ||||
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r681 | QVector<QRectF> result; | ||
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r671 | |||
Marek Rosa
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r1056 | Q_ASSERT(startVector.count() == endVector.count()); | ||
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r671 | |||
Jani Honkonen
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r2097 | for (int i = 0; i < startVector.count(); i++) { | ||
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r1879 | QRectF start = startVector[i].normalized(); | ||
QRectF end = endVector[i].normalized(); | ||||
qreal x = end.left(); | ||||
qreal y; | ||||
qreal w = end.width(); | ||||
qreal h; | ||||
if (endVector[i].height() < 0) { | ||||
// Negative bar | ||||
y = end.top(); | ||||
h = start.height() + ((end.height() - start.height()) * progress); | ||||
} else { | ||||
h = startVector[i].height() + ((endVector[i].height() - startVector[i].height()) * progress); | ||||
y = endVector[i].top() + endVector[i].height() - h; | ||||
} | ||||
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r693 | |||
Jani Honkonen
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r2097 | QRectF value(x, y, w, h); | ||
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r1824 | result << value.normalized(); | ||
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r671 | } | ||
return qVariantFromValue(result); | ||||
} | ||||
#include "moc_baranimation_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||