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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Device Creation.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 "circularindicator.h"
CircularIndicator::CircularIndicator(QQuickItem *parent)
: QQuickPaintedItem(parent)
, m_startAngle(0)
, m_spanAngle(360)
, m_lineWidth(10)
, m_progressColor(QColor(255, 0, 0))
, m_backgroundColor(QColor(240, 240, 240))
, m_padding(1)
{
}
CircularIndicator::~CircularIndicator()
{
}
int CircularIndicator::startAngle() const
{
return m_startAngle;
}
void CircularIndicator::setStartAngle(int angle)
{
if (angle == m_startAngle)
return;
m_startAngle = angle;
emit startAngleChanged(m_startAngle);
update();
}
int CircularIndicator::spanAngle() const
{
return m_spanAngle;
}
void CircularIndicator::setSpanAngle(int angle)
{
if (angle == m_spanAngle)
return;
m_spanAngle = angle;
emit spanAngleChanged(m_spanAngle);
update();
}
int CircularIndicator::lineWidth() const
{
return m_lineWidth;
}
void CircularIndicator::setLineWidth(int width)
{
if (width == m_lineWidth)
return;
m_lineWidth = width;
emit lineWidthChanged(m_lineWidth);
update();
}
QColor CircularIndicator::progressColor() const
{
return m_progressColor;
}
void CircularIndicator::setProgressColor(const QColor &color)
{
if (color == m_progressColor)
return;
m_progressColor = color;
emit progressColorChanged(m_progressColor);
update();
}
QColor CircularIndicator::backgroundColor() const
{
return m_backgroundColor;
}
void CircularIndicator::setBackgroundColor(const QColor &color)
{
if (color == m_backgroundColor)
return;
m_backgroundColor = color;
emit backgroundColorChanged(m_backgroundColor);
update();
}
int CircularIndicator::padding() const
{
return m_padding;
}
void CircularIndicator::setPadding(int padding)
{
if (padding == m_padding)
return;
m_padding = padding;
emit paddingChanged(m_padding);
update();
}
void CircularIndicator::paint(QPainter *painter)
{
painter->setRenderHint(QPainter::Antialiasing);
const int indicatorSize = qMin(width(), height()) - m_padding * 2 - m_lineWidth;
if (indicatorSize <= 0)
return;
QRect indicatorRect(width() / 2 - indicatorSize / 2,
height() / 2 - indicatorSize / 2,
indicatorSize,
indicatorSize);
QPen pen;
pen.setCapStyle(Qt::RoundCap);
pen.setWidth(m_lineWidth);
// Draw the background
pen.setColor(m_backgroundColor);
painter->setPen(pen);
painter->drawArc(indicatorRect, 0, 360 * 16);
if (m_startAngle == m_spanAngle)
return;
// Draw the foreground
pen.setColor(m_progressColor);
painter->setPen(pen);
painter->drawArc(indicatorRect, (90 - m_startAngle) * 16, -m_spanAngle * 16);
}
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