1 files changed, 120 insertions, 0 deletions
diff --git a/src/quickcontrols/basic/impl/qquickbasicdial.cpp b/src/quickcontrols/basic/impl/qquickbasicdial.cpp
new file mode 100644
index 0000000000..d2550b7c27
--- /dev/null
+++ b/src/quickcontrols/basic/impl/qquickbasicdial.cpp
@@ -0,0 +1,120 @@
+// 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 "qquickbasicdial_p.h"
+
+#include <QtCore/qmath.h>
+#include <QtGui/qpainter.h>
+#include <QtGui/qpainterpath.h>
+#include <QtQuick/private/qquickitem_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QQuickBasicDial::QQuickBasicDial(QQuickItem *parent) :
+    QQuickPaintedItem(parent)
+{
+}
+
+qreal QQuickBasicDial::progress() const
+{
+    return m_progress;
+}
+
+void QQuickBasicDial::setProgress(qreal progress)
+{
+    if (progress == m_progress)
+        return;
+
+    m_progress = progress;
+    update();
+}
+
+qreal QQuickBasicDial::startAngle() const
+{
+    return m_startAngle;
+}
+
+void QQuickBasicDial::setStartAngle(qreal startAngle)
+{
+    if (startAngle == m_startAngle)
+        return;
+
+    m_startAngle = startAngle;
+    update();
+}
+
+qreal QQuickBasicDial::endAngle() const
+{
+    return m_endAngle;
+}
+
+void QQuickBasicDial::setEndAngle(qreal endAngle)
+{
+    if (endAngle == m_endAngle)
+        return;
+
+    m_endAngle = endAngle;
+    update();
+}
+
+QColor QQuickBasicDial::color() const
+{
+    return m_color;
+}
+
+void QQuickBasicDial::setColor(const QColor &color)
+{
+    if (color == m_color)
+        return;
+
+    m_color = color;
+    update();
+}
+
+void QQuickBasicDial::paint(QPainter *painter)
+{
+    if (width() <= 0 || height() <= 0)
+        return;
+
+    QPen pen(m_color);
+    pen.setWidth(8);
+    pen.setCapStyle(Qt::FlatCap);
+    painter->setPen(pen);
+
+    const QRectF bounds = boundingRect();
+    const qreal smallest = qMin(bounds.width(), bounds.height());
+    QRectF rect = QRectF(pen.widthF() / 2.0 + 1, pen.widthF() / 2.0 + 1, smallest - pen.widthF() - 2, smallest - pen.widthF() - 2);
+    rect.moveCenter(bounds.center());
+
+    // Make sure the arc is aligned to whole pixels.
+    if (rect.x() - int(rect.x()) > 0)
+        rect.setX(qCeil(rect.x()));
+    if (rect.y() - int(rect.y()) > 0)
+        rect.setY(qCeil(rect.y()));
+    if (rect.width() - int(rect.width()) > 0)
+        rect.setWidth(qFloor(rect.width()));
+    if (rect.height() - int(rect.height()) > 0)
+        rect.setHeight(qFloor(rect.height()));
+
+    painter->setRenderHint(QPainter::Antialiasing);
+
+    const qreal startAngle = 90. - m_startAngle;
+    const qreal spanAngle = m_progress * (m_startAngle - m_endAngle);
+    QPainterPath path;
+    path.arcMoveTo(rect, startAngle);
+    path.arcTo(rect, startAngle, spanAngle);
+    painter->drawPath(path);
+
+    rect.adjust(-pen.widthF() / 2.0, -pen.widthF() / 2.0, pen.widthF() / 2.0, pen.widthF() / 2.0);
+    pen.setWidth(1);
+    painter->setPen(pen);
+
+    path = QPainterPath();
+    path.arcMoveTo(rect, 0);
+    path.arcTo(rect, 0, 360);
+    painter->drawPath(path);
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickbasicdial_p.cpp"