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99 lines
3.6 KiB
99 lines
3.6 KiB
/****************************************************************************
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**
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** Copyright (C) 2017 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Graphical Effects module.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.12
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import QtQuick.Window 2.12
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import QtGraphicalEffects.private 1.12
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import QtGraphicalEffects 1.12
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Item {
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id: root
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property variant source
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property real radius: Math.floor(samples / 2)
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property int samples: 9
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property color color: "black"
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property real horizontalOffset: 0
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property real verticalOffset: 0
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property real spread: 0.0
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property bool cached: false
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property bool transparentBorder: true
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GaussianBlur {
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id: blur
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width: parent.width
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height: parent.height
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x: Math.round(horizontalOffset)
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y: Math.round(verticalOffset)
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source: root.source
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radius: root.radius * Screen.devicePixelRatio
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samples: root.samples * Screen.devicePixelRatio
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_thickness: root.spread
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transparentBorder: root.transparentBorder
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_color: root.color;
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_alphaOnly: true
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// ignoreDevicePixelRatio: root.ignoreDevicePixelRatio
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ShaderEffect {
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x: blur._outputRect.x - parent.x
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y: blur._outputRect.y - parent.y
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width: transparentBorder ? blur._outputRect.width : blur.width
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height: transparentBorder ? blur._outputRect.height : blur.height
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property variant source: blur._output;
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}
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}
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ShaderEffectSource {
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id: cacheItem
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x: -blur._kernelRadius + horizontalOffset
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y: -blur._kernelRadius + verticalOffset
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width: blur.width + 2 * blur._kernelRadius
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height: blur.height + 2 * blur._kernelRadius
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visible: root.cached
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smooth: true
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sourceRect: Qt.rect(-blur._kernelRadius, -blur._kernelRadius, width, height);
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sourceItem: blur
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hideSource: visible
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}
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}
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