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import QtQuick 2.0
Item
{
id: root
width: 100
height: 100
property bool layerEffect: false;
onLayerEffectChanged: root.maybeUse();
Component.onCompleted: root.maybeUse();
property real layerOpacity: 1;
property bool layerVisible: true;
function maybeUse() {
if (root.layerEffect)
box.layer.effect = shaderEffect
}
Component {
id: shaderEffect
ShaderEffect {
fragmentShader: "
uniform lowp sampler2D source;
uniform lowp float qt_Opacity;
varying highp vec2 qt_TexCoord0;
void main() {
gl_FragColor = texture2D(source, qt_TexCoord0).bgra * qt_Opacity;
}
"
}
}
Rectangle {
id: box
width: 100
height: 100
color: "#0000ff"
visible: parent.layerVisible;
opacity: parent.layerOpacity;
Rectangle {
x: 50
width: 50
height: 100
color: "#00ff00"
}
layer.enabled: true
}
}
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