| /**************************************************************************** |
| ** |
| ** 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 |
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| ** 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 |