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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}
}
}
}
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