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123 lines
4.1 KiB
123 lines
4.1 KiB
/****************************************************************************
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**
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** Copyright (C) 2017 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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 QtGraphicalEffects.private 1.12
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Item {
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id: rootItem
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property variant source
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property real radius: 0.0
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property int maximumRadius: 0
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property real horizontalOffset: 0
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property real verticalOffset: 0
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property real spread: 0
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property color color: "black"
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property bool cached: false
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SourceProxy {
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id: sourceProxy
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input: rootItem.source
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}
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ShaderEffectSource {
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id: cacheItem
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anchors.fill: shaderItem
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visible: rootItem.cached
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smooth: true
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sourceItem: shaderItem
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live: true
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hideSource: visible
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}
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ShaderEffect{
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id: shadowItem
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anchors.fill: parent
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property variant original: sourceProxy.output
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property color color: rootItem.color
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property real horizontalOffset: rootItem.horizontalOffset / rootItem.width
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property real verticalOffset: rootItem.verticalOffset / rootItem.height
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visible: false
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fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders/gaussianinnershadow_shadow.frag"
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}
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GaussianDirectionalBlur {
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id: blurItem
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anchors.fill: parent
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horizontalStep: 0.0
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verticalStep: 1.0 / parent.height
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source: horizontalBlur
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radius: rootItem.radius
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maximumRadius: rootItem.maximumRadius
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visible: false
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}
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GaussianDirectionalBlur {
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id: horizontalBlur
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width: transparentBorder ? parent.width + 2 * maximumRadius : parent.width
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height: parent.height
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horizontalStep: 1.0 / parent.width
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verticalStep: 0.0
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source: shadowItem
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radius: rootItem.radius
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maximumRadius: rootItem.maximumRadius
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visible: false
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}
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ShaderEffectSource {
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id: blurredSource
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sourceItem: blurItem
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live: true
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smooth: true
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}
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ShaderEffect {
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id: shaderItem
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anchors.fill: parent
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property variant original: sourceProxy.output
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property variant shadow: blurredSource
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property real spread: 1.0 - (rootItem.spread * 0.98)
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property color color: rootItem.color
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fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders/gaussianinnershadow.frag"
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}
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}
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