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-rw-r--r--examples/gestures/browser/chasewidget.cpp142
1 files changed, 0 insertions, 142 deletions
diff --git a/examples/gestures/browser/chasewidget.cpp b/examples/gestures/browser/chasewidget.cpp
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--- a/examples/gestures/browser/chasewidget.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the either Technology Preview License Agreement or the
-** Beta Release License Agreement.
-**
-** 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, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, 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.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://www.qtsoftware.com/contact.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "chasewidget.h"
-
-#include <QtCore/QPoint>
-
-#include <QtGui/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;
-}
-