examples/graphicsview/padnavigator/splashitem.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/graphicsview/padnavigator/splashitem.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "splashitem.h"
+
+#include <QtGui/QtGui>
+
+SplashItem::SplashItem(QGraphicsItem *parent)
+    : QGraphicsWidget(parent)
+{
+    opacity = 1.0;
+
+    
+    timeLine = new QTimeLine(350);
+    timeLine->setCurveShape(QTimeLine::EaseInCurve);
+    connect(timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(setValue(qreal)));
+
+    text = tr("Welcome to the Pad Navigator Example. You can use the"
+              " keyboard arrows to navigate the icons, and press enter"
+              " to activate an item. Please press any key to continue.");
+    resize(400, 175);
+}
+
+void SplashItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+    painter->setOpacity(opacity);
+    painter->setPen(QPen(Qt::black, 2));
+    painter->setBrush(QColor(245, 245, 255, 220));
+    painter->setClipRect(rect());
+    painter->drawRoundRect(3, -100 + 3, 400 - 6, 250 - 6);
+
+    QRectF textRect = rect().adjusted(10, 10, -10, -10);
+    int flags = Qt::AlignTop | Qt::AlignLeft | Qt::TextWordWrap;
+
+    QFont font;
+    font.setPixelSize(18);
+    painter->setPen(Qt::black);
+    painter->setFont(font);
+    painter->drawText(textRect, flags, text);
+}
+
+void SplashItem::keyPressEvent(QKeyEvent * /* event */)
+{
+    if (timeLine->state() == QTimeLine::NotRunning)
+        timeLine->start();
+}
+
+void SplashItem::setValue(qreal value)
+{
+    opacity = 1 - value;
+    setPos(x(), scene()->sceneRect().top() - rect().height() * value);
+    if (value == 1)
+        hide();
+}