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