--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/browser/chasewidget.d	Sun May 17 18:49:59 2009 +0000
@@ -0,0 +1,174 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+module chasewidget;
+
+
+import QtGui.QWidget;
+
+import QtCore.QSize;
+import QtGui.QColor;
+import QtGui.QPixmap;
+
+import QtCore.QPoint;
+
+import QtGui.QApplication;
+import QtGui.QHideEvent;
+import QtGui.QPainter;
+import QtGui.QPaintEvent;
+import QtGui.QShowEvent;
+
+/*
+QT_BEGIN_NAMESPACE
+class QHideEvent;
+class QShowEvent;
+class QPaintEvent;
+class QTimerEvent;
+QT_END_NAMESPACE
+*/
+
+class ChaseWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    this(QWidget *parent = 0, QPixmap pixmap = QPixmap(), bool pixmapEnabled = false)
+{
+	super(parent);
+	m_segment = 0;
+     m_delay = 100;
+     m_step = 40;
+     m_timerId = -1;
+	 m_animated = false;
+ m_pixmap = pixmap;
+     m_pixmapEnabled = pixmapEnabled;
+}
+
+    void 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 setPixmapEnabled(bool enable);
+{
+    m_pixmapEnabled = enable;
+}
+
+
+    QSize sizeHint()
+{
+    return QSize(32, 32);
+}
+
+protected:
+    void paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event);
+    QPainter p(this);
+    if (m_pixmapEnabled && !m_pixmap.isNull()) {
+        p.drawPixmap(0, 0, m_pixmap);
+        return;
+    }
+
+    int extent = qMin(width() - 8, height() - 8);
+    int displ = extent / 4;
+    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));
+    }
+}
+
+    void timerEvent(QTimerEvent *event)
+{
+    if (event->timerId() == m_timerId) {
+        ++m_segment;
+        update();
+    }
+    QWidget.timerEvent(event);
+}
+
+private:
+    int segmentCount()
+{
+    return 360 / m_step;
+}
+
+
+QColor colorForSegment(int seg)
+{
+    int index = ((seg + m_segment) % segmentCount());
+    int comp = qMax(0, 255 - (index * (255 / segmentCount())));
+    return QColor(comp, comp, comp, 255);
+}
+
+    int m_segment;
+    int m_delay;
+    int m_step;
+    int m_timerId;
+    bool m_animated;
+    QPixmap m_pixmap;
+    bool m_pixmapEnabled;
+}