src/quickcontrols/imagine/impl/OpacityMask.qml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

import QtQuick

/*
   A cross-graphics API implementation of QtGraphicalEffects' OpacityMask.
 */
Item {
    id: rootItem

    property variant source
    property variant maskSource
    property bool cached: false

    ShaderEffectSource {
        id: cacheItem
        anchors.fill: parent
        visible: rootItem.cached
        smooth: true
        sourceItem: shaderItem
        live: true
        hideSource: visible
    }

    ShaderEffect {
        id: shaderItem
        property variant source: rootItem.source
        property variant maskSource: rootItem.maskSource

        anchors.fill: parent

        fragmentShader: "qrc:/qt-project.org/imports/QtQuick/Controls/Imagine/impl/shaders/OpacityMask.frag.qsb"
    }
}