1 files changed, 89 insertions, 0 deletions
diff --git a/src/quickcontrols/fusion/impl/qquickfusionbusyindicator.cpp b/src/quickcontrols/fusion/impl/qquickfusionbusyindicator.cpp
new file mode 100644
index 0000000000..8e58b09ed3
--- /dev/null
+++ b/src/quickcontrols/fusion/impl/qquickfusionbusyindicator.cpp
@@ -0,0 +1,89 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qquickfusionbusyindicator_p.h"
+
+#include <QtGui/qpainter.h>
+
+QT_BEGIN_NAMESPACE
+
+QQuickFusionBusyIndicator::QQuickFusionBusyIndicator(QQuickItem *parent)
+    : QQuickPaintedItem(parent)
+{
+}
+
+QColor QQuickFusionBusyIndicator::color() const
+{
+    return m_color;
+}
+
+void QQuickFusionBusyIndicator::setColor(const QColor &color)
+{
+    if (color == m_color)
+        return;
+
+    m_color = color;
+    update();
+}
+
+bool QQuickFusionBusyIndicator::isRunning() const
+{
+    return isVisible();
+}
+
+void QQuickFusionBusyIndicator::setRunning(bool running)
+{
+    if (running) {
+        setVisible(true);
+        update();
+    }
+}
+
+void QQuickFusionBusyIndicator::paint(QPainter *painter)
+{
+    const qreal w = width();
+    const qreal h = height();
+    if (w <= 0 || h <= 0 || !isRunning())
+        return;
+
+    const qreal sz = qMin(w, h);
+    const qreal dx = (w - sz) / 2;
+    const qreal dy = (h - sz) / 2;
+    const int hpw = qRound(qMax(qreal(1), sz / 14)) & -1;
+    const int pw = 2 * hpw;
+    const QRectF bounds(dx + hpw, dy + hpw, sz - pw - 1, sz - pw - 1);
+
+    QConicalGradient gradient;
+    gradient.setCenter(QPointF(dx + sz / 2, dy + sz / 2));
+    gradient.setColorAt(0, m_color);
+    gradient.setColorAt(0.1, m_color);
+    gradient.setColorAt(1, Qt::transparent);
+
+    painter->translate(0.5, 0.5);
+    painter->setRenderHint(QPainter::Antialiasing, true);
+    painter->setPen(QPen(gradient, pw, Qt::SolidLine));
+    painter->drawArc(bounds, 0, 360 * 16);
+    painter->setPen(QPen(m_color, pw, Qt::SolidLine, Qt::RoundCap));
+    painter->drawArc(bounds, 0, 20 * 16);
+}
+
+void QQuickFusionBusyIndicator::itemChange(ItemChange change, const ItemChangeData &data)
+{
+    QQuickPaintedItem::itemChange(change, data);
+
+    switch (change) {
+    case ItemOpacityHasChanged:
+        if (qFuzzyIsNull(data.realValue))
+            setVisible(false);
+        break;
+    case ItemVisibleHasChanged:
+        update();
+        break;
+    default:
+        break;
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickfusionbusyindicator_p.cpp"