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/**************************************************************************** ** ** 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. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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 1.1, 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. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef FULLSCREENEXITBUTTON_H #define FULLSCREENEXITBUTTON_H #include <QtGui/qtoolbutton.h> #include <QtGui/qevent.h> class FullScreenExitButton : public QToolButton { Q_OBJECT public: inline explicit FullScreenExitButton(QWidget *parent); protected: inline bool eventFilter(QObject *obj, QEvent *ev); }; FullScreenExitButton::FullScreenExitButton(QWidget *parent) : QToolButton(parent) { Q_ASSERT(parent); // set the fullsize icon from Maemo's theme setIcon(QIcon::fromTheme(QLatin1String("general_fullsize"))); // ensure that our size is fixed to our ideal size setFixedSize(sizeHint()); // set the background to 0.5 alpha QPalette pal = palette(); QColor backgroundColor = pal.color(backgroundRole()); backgroundColor.setAlpha(128); pal.setColor(backgroundRole(), backgroundColor); setPalette(pal); // ensure that we're painting our background setAutoFillBackground(true); // when we're clicked, tell the parent to exit fullscreen connect(this, SIGNAL(clicked()), parent, SLOT(showNormal())); // install an event filter to listen for the parent's events parent->installEventFilter(this); } bool FullScreenExitButton::eventFilter(QObject *obj, QEvent *ev) { if (obj != parent()) return QToolButton::eventFilter(obj, ev); QWidget *parent = parentWidget(); bool isFullScreen = parent->windowState() & Qt::WindowFullScreen; switch (ev->type()) { case QEvent::WindowStateChange: setVisible(isFullScreen); if (isFullScreen) raise(); // fall through case QEvent::Resize: if (isVisible()) move(parent->width() - width(), parent->height() - height()); break; default: break; } return QToolButton::eventFilter(obj, ev); } #endif
Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies) | Trademarks | Qt 4.6.2 |