diff options
Diffstat (limited to 'examples/widgets/browser/chasewidget.cpp')
-rw-r--r-- | examples/widgets/browser/chasewidget.cpp | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/examples/widgets/browser/chasewidget.cpp b/examples/widgets/browser/chasewidget.cpp deleted file mode 100644 index c34dde739..000000000 --- a/examples/widgets/browser/chasewidget.cpp +++ /dev/null @@ -1,141 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 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 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "chasewidget.h" - -#include <QtCore/QPoint> - -#include <QtWidgets/QApplication> -#include <QtGui/QHideEvent> -#include <QtGui/QPainter> -#include <QtGui/QPaintEvent> -#include <QtGui/QShowEvent> - -ChaseWidget::ChaseWidget(QWidget *parent, QPixmap pixmap, bool pixmapEnabled) - : QWidget(parent) - , m_segment(0) - , m_delay(100) - , m_step(40) - , m_timerId(-1) - , m_animated(false) - , m_pixmap(pixmap) - , m_pixmapEnabled(pixmapEnabled) -{ -} - -void ChaseWidget::setAnimated(bool value) -{ - if (m_animated == value) - return; - m_animated = value; - if (m_timerId != -1) { - killTimer(m_timerId); - m_timerId = -1; - } - if (m_animated) { - m_segment = 0; - m_timerId = startTimer(m_delay); - } - update(); -} - -void ChaseWidget::paintEvent(QPaintEvent *event) -{ - Q_UNUSED(event); - QPainter p(this); - if (m_pixmapEnabled && !m_pixmap.isNull()) { - p.drawPixmap(0, 0, m_pixmap); - return; - } - - const int extent = qMin(width() - 8, height() - 8); - const int displ = extent / 4; - const int ext = extent / 4 - 1; - - p.setRenderHint(QPainter::Antialiasing, true); - - if (m_animated) - p.setPen(Qt::gray); - else - p.setPen(QPen(palette().dark().color())); - - p.translate(width() / 2, height() / 2); // center - - for (int segment = 0; segment < segmentCount(); ++segment) { - p.rotate(QApplication::isRightToLeft() ? m_step : -m_step); - if (m_animated) - p.setBrush(colorForSegment(segment)); - else - p.setBrush(palette().background()); - p.drawEllipse(QRect(displ, -ext / 2, ext, ext)); - } -} - -QSize ChaseWidget::sizeHint() const -{ - return QSize(32, 32); -} - -void ChaseWidget::timerEvent(QTimerEvent *event) -{ - if (event->timerId() == m_timerId) { - ++m_segment; - update(); - } - QWidget::timerEvent(event); -} - -QColor ChaseWidget::colorForSegment(int seg) const -{ - int index = ((seg + m_segment) % segmentCount()); - int comp = qMax(0, 255 - (index * (255 / segmentCount()))); - return QColor(comp, comp, comp, 255); -} - -int ChaseWidget::segmentCount() const -{ - return 360 / m_step; -} - -void ChaseWidget::setPixmapEnabled(bool enable) -{ - m_pixmapEnabled = enable; -} |