1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/****************************************************************************
**
** 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 qVariantFromValue(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, qVariantFromValue(oldLayout));
setKeyValueAt(1.0, qVariantFromValue(newLayout));
}
#include "moc_baranimation_p.cpp"
QT_CHARTS_END_NAMESPACE
|
