summaryrefslogtreecommitdiff
path: root/examples/webkitwidgets/browser/chasewidget.cpp
diff options
context:
space:
mode:
authorhjk <qthjk@ovi.com>2012-12-10 17:21:29 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2012-12-10 18:37:29 +0100
commit129bcf57471d09f15cbfe6dc3ab397689e6eb245 (patch)
treeb4901c52b1f75212303be606e6c40530c2afcd53 /examples/webkitwidgets/browser/chasewidget.cpp
parent539c47c9c93335196dbde56f7ba98de0e6600a38 (diff)
downloadqtwebkit-examples-129bcf57471d09f15cbfe6dc3ab397689e6eb245.tar.gz
Adjust webkit example project install targets.
This follows suit with aeb036e in qtbase. Change-Id: Ifc85b327df81d15f3579b911e07c95a3b7a3bb9d Reviewed-by: Michael Bruning <michael.bruning@digia.com> Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>
Diffstat (limited to 'examples/webkitwidgets/browser/chasewidget.cpp')
-rw-r--r--examples/webkitwidgets/browser/chasewidget.cpp142
1 files changed, 142 insertions, 0 deletions
diff --git a/examples/webkitwidgets/browser/chasewidget.cpp b/examples/webkitwidgets/browser/chasewidget.cpp
new file mode 100644
index 0000000..7ab98ee
--- /dev/null
+++ b/examples/webkitwidgets/browser/chasewidget.cpp
@@ -0,0 +1,142 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 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;
+}
+