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Diffstat (limited to 'tests/manual/examples/blurpicker/blureffect.cpp')
-rw-r--r-- | tests/manual/examples/blurpicker/blureffect.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/manual/examples/blurpicker/blureffect.cpp b/tests/manual/examples/blurpicker/blureffect.cpp new file mode 100644 index 0000000000..2e2b8c8d6b --- /dev/null +++ b/tests/manual/examples/blurpicker/blureffect.cpp @@ -0,0 +1,31 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "blureffect.h" + +#include <QDebug> + +BlurEffect::BlurEffect(QGraphicsItem *item) + : QGraphicsBlurEffect() + , m_baseLine(200), item(item) +{ +} + +void BlurEffect::adjustForItem() +{ + qreal y = m_baseLine - item->pos().y(); + qreal radius = qBound(qreal(0.0), y / 32, qreal(16.0)); + setBlurRadius(radius); +} + +QRectF BlurEffect::boundingRect() const +{ + const_cast<BlurEffect *>(this)->adjustForItem(); + return QGraphicsBlurEffect::boundingRect(); +} + +void BlurEffect::draw(QPainter *painter) +{ + adjustForItem(); + QGraphicsBlurEffect::draw(painter); +} |