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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickdefaultdial_p.h"
#include <QtCore/qmath.h>
#include <QtGui/qpainter.h>
#include <QtQuick/private/qquickitem_p.h>
QT_BEGIN_NAMESPACE
QQuickDefaultDial::QQuickDefaultDial(QQuickItem *parent) :
QQuickPaintedItem(parent)
{
}
qreal QQuickDefaultDial::progress() const
{
return m_progress;
}
void QQuickDefaultDial::setProgress(qreal progress)
{
if (progress == m_progress)
return;
m_progress = progress;
update();
}
QColor QQuickDefaultDial::color() const
{
return m_color;
}
void QQuickDefaultDial::setColor(const QColor &color)
{
if (color == m_color)
return;
m_color = color;
update();
}
void QQuickDefaultDial::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 = (140 + 90);
const qreal spanAngle = (m_progress * 280) * -1;
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
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