/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QML Shaders plugin of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
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**
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 1.0
import Qt.labs.shaders 1.0

Item {
    id: blendModeTest
    property real blendItemHeight: 60

    anchors.fill: parent;

    Rectangle {
        width: parent.width / 6
        height: parent.height
        color: "black"
    }
    Rectangle {
        x: parent.width/6 * 1
        width: parent.width / 6
        height: parent.height
        color: "white"
    }
    Rectangle {
        x: parent.width/6 * 2
        width: parent.width / 6
        height: parent.height
        color: "gray"
    }
    Rectangle {
        x: parent.width/6 * 3
        width: parent.width / 6
        height: parent.height
        color: "red"
    }
    Rectangle {
        x: parent.width/6 * 4
        width: parent.width / 6
        height: parent.height
        color: "green"
    }
    Rectangle {
        x: parent.width/6 * 5
        width: parent.width / 6
        height: parent.height
        color: "blue"
    }


    Image {
        anchors.fill: parent;
        source: "image.png"

    }

    Rectangle {
        id: first
        anchors.top: parent.top
        anchors.topMargin: 60
        width: parent.width
        height: blendModeTest.blendItemHeight
        color: "#8000ff00"
        Text {
            anchors.bottom: parent.bottom
            anchors.bottomMargin: 5
            text: " Rectangle color #8000ff00"
            color: "white"
        }
    }
    Rectangle {
        id: second
        anchors.top: first.bottom
        anchors.topMargin: 5
        width: parent.width
        height: blendModeTest.blendItemHeight
        color: "#ff00ff00"
        opacity: 0.5
        Text {
            anchors.bottom: parent.bottom
            anchors.bottomMargin: 5
            text: " Rectangle color #ff00ff00, opacity 0.5"
            color: "white"
        }
    }

    ShaderEffectItem {
        id: effect
        anchors.top: second.bottom
        anchors.topMargin: 5
        width: parent.width
        height: blendModeTest.blendItemHeight
        fragmentShader: "
        varying highp vec2 qt_TexCoord0;
        void main() {
            gl_FragColor = vec4(0.0, 1.0, 0.0, 0.5);
        }
        "
        Text {
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 5
             text: " ShaderEffectItem gl_FragColor=vec4(0.0, 1.0, 0.0, 0.5)"
             color: "white"
        }
    }

        ShaderEffectItem {
            id: effect2
            anchors.top: effect.bottom
            anchors.topMargin: 5
            width: parent.width
            height: blendModeTest.blendItemHeight
            fragmentShader: "
            varying highp vec2 qt_TexCoord0;
            void main() {
                gl_FragColor = vec4(0.0, 0.5, 0.0, 0.5);
            }
                "
                Text {
                    anchors.bottom: parent.bottom
                    anchors.bottomMargin: 5
                    text: " ShaderEffectItem gl_FragColor=vec4(0.0, 0.5, 0.0, 0.5)"
                    color: "white"
                }
        }


     Image {
         id: image1
         source: "green_image_transparent.png"
         anchors.top: effect2.bottom
         anchors.topMargin: 5
         width: parent.width
         height: blendModeTest.blendItemHeight
     }
     Text {
         anchors.bottom: image1.bottom
         anchors.bottomMargin: 5
         text: " Image, green and 50% alpha"
         color: "white"
     }


     ShaderEffectItem {
         id: effect3
         property variant source: ShaderEffectSource {
             sourceItem: image1
             hideSource: false
         }
         anchors.top: image1.bottom
         anchors.topMargin: 5

         width: parent.width
         height: blendModeTest.blendItemHeight
         Text {
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 5
             text: " ShaderEffectItem, source item green 50% alpha."
             color: "white"
         }
     }

     ShaderEffectItem {
         id: effect4
         property variant source: ShaderEffectSource {
             sourceItem: Image { source: "green_image_transparent.png" }
             hideSource: true
         }
         anchors.top: effect3.bottom
         anchors.topMargin: 5
         width: parent.width
         height: blendModeTest.blendItemHeight
         Text {
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 5
             text: " ShaderEffectItem, source image green 50% alpha."
             color: "white"
         }
     }


     Rectangle {
         id: greenRect2
         anchors.top: effect4.bottom
         anchors.topMargin: 5
         width: parent.width
         height: blendModeTest.blendItemHeight
         opacity: 0.5
         color: "green"
     }


     ShaderEffectItem {
         id: effect5
         property variant source: ShaderEffectSource { sourceItem: greenRect2; hideSource: true }
         anchors.top: effect4.bottom
         anchors.topMargin: 5

         width: parent.width
         height: blendModeTest.blendItemHeight
         Text {
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 5
             text: " ShaderEffectItem, source item green rect with 0.5 opacity."
             color: "white"
         }
     }

    Timer {
        running: true
        interval: 2000
        repeat: true
        onTriggered: {
        }
    }


    Rectangle {
        width: parent.width
        height: 40
        color: "#cc000000"

        Text {
             id: label
             anchors.centerIn:  parent
             text: "Blending test"
             color: "white"
             font.bold: true
        }
    }
}