ColorOverlay QML Type▲
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Import Statement: import Qt5Compat.GraphicalEffects
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Since:: QtGraphicalEffects 1.0
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Inherits:: Item
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Group: ColorOverlay is part of qtgraphicaleffects-color
Detailed Description▲
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.
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Effect applied |
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Example▲
The following example shows how to apply the effect.
import QtQuick
import Qt5Compat.GraphicalEffects
Item {
width: 300
height: 300
Image {
id: bug
source: "images/butterfly.png"
sourceSize: Qt.size(parent.width, parent.height)
smooth: true
visible: false
}
ColorOverlay {
anchors.fill: bug
source: bug
color: "#80800000"
}
}Property Documentation▲
cached : bool▲
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 false.
color : color▲
This property defines the color value which is used to colorize the source.
By default, the property is set to "transparent".
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Output examples with different color values |
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color: #80ff0000 |
color: #8000ff00 |
color: #800000ff |
source : variant▲
This property defines the source item that provides the source pixels for the effect.
It is not supported to let the effect include itself, for instance by setting source to the effect's parent.