diff options
Diffstat (limited to 'basicsuite/graphicaleffects/Checkers.qml')
-rw-r--r-- | basicsuite/graphicaleffects/Checkers.qml | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/basicsuite/graphicaleffects/Checkers.qml b/basicsuite/graphicaleffects/Checkers.qml new file mode 100644 index 0000000..4dc37b1 --- /dev/null +++ b/basicsuite/graphicaleffects/Checkers.qml @@ -0,0 +1,68 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: For any questions to Digia, please use the contact form at +** http://qt.digia.com/ +** +** This file is part of the examples of the Qt Enterprise Embedded. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Digia Plc and its Subsidiary(-ies) 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 + + +// The checkers background +ShaderEffect { + + property real tileSize: 16 + property color color1: Qt.rgba(0.7, 0.7, 0.7, 1); + property color color2: Qt.rgba(0.6, 0.6, 0.6, 1); + + property size _pixelSize: Qt.size(Math.PI * width / tileSize, Math.PI * height / tileSize); + + fragmentShader: + " + uniform lowp vec4 color1; + uniform lowp vec4 color2; + uniform lowp float qt_Opacity; + uniform highp vec2 _pixelSize; + varying highp vec2 qt_TexCoord0; + void main() { + highp vec2 tc = sign(sin(qt_TexCoord0 * _pixelSize)); + if (tc.x != tc.y) + gl_FragColor = color1 * qt_Opacity; + else + gl_FragColor = color2 * qt_Opacity; + } + " +} |