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Diffstat (limited to 'examples/graphicsview/padnavigator/splashitem.cpp')
-rw-r--r-- | examples/graphicsview/padnavigator/splashitem.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/examples/graphicsview/padnavigator/splashitem.cpp b/examples/graphicsview/padnavigator/splashitem.cpp new file mode 100644 index 0000000..2a374bf --- /dev/null +++ b/examples/graphicsview/padnavigator/splashitem.cpp @@ -0,0 +1,92 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 qt-sales@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(); +} |