1 files changed, 82 insertions, 0 deletions
diff --git a/src/charts/animations/baranimation.cpp b/src/charts/animations/baranimation.cpp
new file mode 100644
index 00000000..15b69288
--- /dev/null
+++ b/src/charts/animations/baranimation.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 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 Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise 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
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "baranimation_p.h"
+#include "abstractbarchartitem_p.h"
+
+Q_DECLARE_METATYPE(QVector<QRectF>)
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+BarAnimation::BarAnimation(AbstractBarChartItem *item)
+    : ChartAnimation(item),
+      m_item(item)
+{
+    setDuration(ChartAnimationDuration);
+    setEasingCurve(QEasingCurve::OutQuart);
+}
+
+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
+