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Diffstat (limited to 'examples/effects/lighting/shadoweffect.cpp')
-rw-r--r-- | examples/effects/lighting/shadoweffect.cpp | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/examples/effects/lighting/shadoweffect.cpp b/examples/effects/lighting/shadoweffect.cpp deleted file mode 100644 index 16e52fb..0000000 --- a/examples/effects/lighting/shadoweffect.cpp +++ /dev/null @@ -1,76 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** 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 "shadoweffect.h" - -#include <math.h> - -ShadowEffect::ShadowEffect(QGraphicsItem *item, QGraphicsItem *source) - : QGraphicsDropShadowEffect() - , item(item), m_lightSource(source) -{ - setBlurRadius(8); - m_color = color(); -} - -void ShadowEffect::adjustForItem() -{ - QPointF delta = item->pos() - m_lightSource->pos(); - setOffset(delta.toPoint() / 30); - - qreal dx = delta.x(); - qreal dy = delta.y(); - qreal dd = sqrt(dx * dx + dy * dy); - m_color.setAlphaF(qBound(0.4, 1 - dd / 200.0, 0.7)); - setColor(m_color); -} - -QRectF ShadowEffect::boundingRectFor(const QRectF &rect) const -{ - const_cast<ShadowEffect *>(this)->adjustForItem(); - return QGraphicsDropShadowEffect::boundingRectFor(rect); -} - -void ShadowEffect::draw(QPainter *painter, QGraphicsEffectSource *source) -{ - adjustForItem(); - QGraphicsDropShadowEffect::draw(painter, source); -} |