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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples 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 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
+import QtQuick.Particles 2.0
+
+/**
+ * ParticleSystem component draw particles with the given color.
+ */
+
+ParticleSystem {
+ id: root
+ anchors.fill: parent
+ running: true
+
+ property color particleColor: "#ff0000"
+ property real angle: particleRoot.angle;
+ property int pointCount: particleRoot.pointCount;
+ property real radius: particleRoot.distance;
+ property real movement: particleRoot.movement;
+ property bool emitting: particleRoot.running;
+ property int touchX: 0
+ property int touchY: 0
+ property int startAngle: 0
+ property bool pressed: false
+ property real targetX: pressed ? touchX : width/2+radius * Math.cos(targetAngle*(Math.PI/180))
+ property real targetY: pressed ? touchY : height/2+radius * Math.sin(targetAngle*(Math.PI/180))
+ property real targetAngle: angle+startAngle
+
+ Emitter {
+ id: emitter
+ lifeSpan: 1000
+ emitRate: 80
+ x: targetX
+ y: targetY
+ enabled: root.emitting
+ size: root.height*.05
+ endSize: root.height*.1
+ sizeVariation: .5
+ velocity: AngleDirection{angle:0; angleVariation: 360; magnitude: 10}
+ acceleration: AngleDirection{angle:0; angleVariation: 360; magnitude: 10}
+ velocityFromMovement: root.movement
+ }
+
+ ImageParticle {
+ id: imageParticle
+ source: "images/particle.png"
+ color: root.pointCount >0 && root.pressed ? root.particleColor: "#444444"
+ alpha: .0
+ colorVariation: root.pointCount >0 && root.pressed ? 0.3: .0
+
+ Behavior on color{
+ enabled: root.pointCount != 0
+ ColorAnimation { duration: 500 }
+ }
+
+ SequentialAnimation on color {
+ id: colorAnimation
+ loops: Animation.Infinite
+ running: root.pointCount === 0
+ ColorAnimation {from: root.particleColor; to: "magenta"; duration: 2000}
+ ColorAnimation {from: "magenta"; to: "blue"; duration: 1000}
+ ColorAnimation {from: "blue"; to: "violet"; duration: 1000}
+ ColorAnimation {from: "violet"; to: "red"; duration: 1000}
+ ColorAnimation {from: "red"; to: "orange"; duration: 1000}
+ ColorAnimation {from: "orange"; to: "yellow"; duration: 1000}
+ ColorAnimation {from: "yellow"; to: "green"; duration: 1000}
+ ColorAnimation {from: "green"; to: root.particleColor; duration: 2000}
+ }
+ }
+}