diff options
Diffstat (limited to 'qt4/faderwidget.cpp')
-rw-r--r-- | qt4/faderwidget.cpp | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/qt4/faderwidget.cpp b/qt4/faderwidget.cpp deleted file mode 100644 index c8d95e82a..000000000 --- a/qt4/faderwidget.cpp +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2006 Trolltech AS. All rights reserved. -** -** This file is part of the documentation of Qt. It was originally -** published as part of Qt Quarterly. -** -** This file may be used under the terms of the GNU General Public License -** version 2.0 as published by the Free Software Foundation or under the -** terms of the Qt Commercial License Agreement. The respective license -** texts for these are provided with the open source and commercial -** editions of Qt. -** -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://www.trolltech.com/products/qt/licensing.html or contact the -** sales department at [email protected]. -** -** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE -** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -** -****************************************************************************/ - -#include <QtGui> - -#include "faderwidget.h" - -FaderWidget::FaderWidget(QWidget *parent) - : QWidget(parent) -{ - if (parent) { - startColor = endColor = parent->palette().window().color(); - } else { - startColor = endColor = Qt::white; - } - - currentAlpha = 0; - duration = 333; - fadeOut = false; - - timer = new QTimer(this); - connect(timer, SIGNAL(timeout()), this, SLOT(update())); - - setAttribute(Qt::WA_DeleteOnClose); - resize(parent->size()); -} - -void FaderWidget::start() -{ - currentAlpha = 255; - fadeOut = false; - timer->start(33); - show(); -} - -void FaderWidget::startFadeOut() -{ - currentAlpha = 0; - fadeOut = true; - timer->start(33); - show(); -} - -void FaderWidget::paintEvent(QPaintEvent * /* event */) -{ - QPainter painter(this); - QColor semiTransparentColor = startColor; - semiTransparentColor.setAlpha(currentAlpha); - painter.fillRect(rect(), semiTransparentColor); - - if (fadeOut) { - currentAlpha += 255 * timer->interval() / duration; - if (currentAlpha >= 255) { - timer->stop(); - emit done( (QWidget *)parent() ); - close(); - } - } else { - currentAlpha -= 255 * timer->interval() / duration; - if (currentAlpha <= 0) { - timer->stop(); - emit done( (QWidget *)parent() ); - close(); - } - } -} |