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-/****************************************************************************
-**
-** Copyright (C) 2020 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Graphical Effects module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** 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.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-import QtQuick 2.12
-import QtGraphicalEffects.private 1.12
-
-/*!
- \qmltype ColorOverlay
- \inqmlmodule QtGraphicalEffects
- \since QtGraphicalEffects 1.0
- \inherits QtQuick2::Item
- \ingroup qtgraphicaleffects-color
- \brief Alters the colors of the source item by applying an overlay color.
-
- The effect is similar to what happens when a colorized glass is put on top
- of a grayscale image. The color for the overlay is given in the RGBA format.
-
- \table
- \header
- \li Source
- \li Effect applied
- \row
- \li \image Original_butterfly.png
- \li \image ColorOverlay_butterfly.png
- \endtable
-
- \section1 Example
-
- The following example shows how to apply the effect.
- \snippet ColorOverlay-example.qml example
-
-*/
-Item {
- id: rootItem
-
- /*!
- This property defines the source item that provides the source pixels
- for the effect.
-
- \note It is not supported to let the effect include itself, for
- instance by setting source to the effect's parent.
- */
- property variant source
-
- /*!
- This property defines the RGBA color value which is used to colorize the
- source.
-
- By default, the property is set to \c "transparent".
-
- \table
- \header
- \li Output examples with different color values
- \li
- \li
- \row
- \li \image ColorOverlay_color1.png
- \li \image ColorOverlay_color2.png
- \li \image ColorOverlay_color3.png
- \row
- \li \b { color: #80ff0000 }
- \li \b { color: #8000ff00 }
- \li \b { color: #800000ff }
- \endtable
-
- */
- property color color: "transparent"
-
- /*!
- This property allows the effect output pixels to be cached in order to
- improve the rendering performance.
-
- Every time the source or effect properties are changed, the pixels in
- the cache must be updated. Memory consumption is increased, because an
- extra buffer of memory is required for storing the effect output.
-
- It is recommended to disable the cache when the source or the effect
- properties are animated.
-
- By default, the property is set to \c false.
-
- */
- property bool cached: false
-
- SourceProxy {
- id: sourceProxy
- input: rootItem.source
- interpolation: input && input.smooth ? SourceProxy.LinearInterpolation : SourceProxy.NearestInterpolation
- }
-
- ShaderEffectSource {
- id: cacheItem
- anchors.fill: parent
- visible: rootItem.cached
- smooth: true
- sourceItem: shaderItem
- live: true
- hideSource: visible
- }
-
- ShaderEffect {
- id: shaderItem
- property variant source: sourceProxy.output
- property color color: rootItem.color
-
- anchors.fill: parent
-
- fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/coloroverlay.frag.qsb"
- }
-}