diff options
Diffstat (limited to 'src/imports/controls/fusion/qquickfusionbusyindicator.cpp')
-rw-r--r-- | src/imports/controls/fusion/qquickfusionbusyindicator.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/imports/controls/fusion/qquickfusionbusyindicator.cpp b/src/imports/controls/fusion/qquickfusionbusyindicator.cpp new file mode 100644 index 00000000..f5c92010 --- /dev/null +++ b/src/imports/controls/fusion/qquickfusionbusyindicator.cpp @@ -0,0 +1,109 @@ +/**************************************************************************** +** +** 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 "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); +} + +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(1.0, 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); + + if (change == ItemOpacityHasChanged && qFuzzyIsNull(data.realValue)) + setVisible(false); +} + +QT_END_NAMESPACE |