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/****************************************************************************
**
** Copyright (C) 2014 Gunnar Sletta <gunnar@sletta.org>
** Contact: http://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 2.0
Item {
width: 300
height: 200
// The checkers background
ShaderEffect {
id: tileBackground
anchors.fill: parent
property real tileSize: 10
property color color1: Qt.rgba(0.9, 0.9, 0.9, 1);
property color color2: Qt.rgba(0.85, 0.85, 0.85, 1);
property size pixelSize: Qt.size(width / tileSize, height / tileSize);
fragmentShader:
"
uniform lowp vec4 color1;
uniform lowp vec4 color2;
uniform highp vec2 pixelSize;
varying highp vec2 qt_TexCoord0;
void main() {
highp vec2 tc = sign(sin(3.14152 * qt_TexCoord0 * pixelSize));
if (tc.x != tc.y)
gl_FragColor = color1;
else
gl_FragColor = color2;
}
"
}
Row {
height: 100
anchors.centerIn: parent
spacing: 50
//! [non-layered]
Item {
id: nonLayered
opacity: 0.5
width: 100
height: 100
Rectangle { width: 80; height: 80; border.width: 1 }
Rectangle { x: 20; y: 20; width: 80; height: 80; border.width: 1 }
}
//! [non-layered]
//! [layered]
Item {
id: layered
opacity: 0.5
layer.enabled: true
width: 100
height: 100
Rectangle { width: 80; height: 80; border.width: 1 }
Rectangle { x: 20; y: 20; width: 80; height: 80; border.width: 1 }
}
//! [layered]
}
}
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