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Fill out examples a little more 

Adds an example of colorized ImageParticle, and an example comparing
the particle system to dynamically created Images (which don't do too
badly when they're kept really simple).

Change-Id: Id9e8d0575a38ddde1c73d694bd5c062d56cbed42
Reviewed-on: http://codereview.qt-project.org/5047
Reviewed-by: Martin Jones <martin.jones@nokia.com>
This commit is contained in:
Alan Alpert 2011-09-16 13:26:50 +10:00 committed by Qt by Nokia
parent 5f0c8f13b8
commit eca61962be
2 changed files with 205 additions and 0 deletions
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83
examples/declarative/particles/imageparticle/colored.qml Normal file
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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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 Nokia Corporation 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
Rectangle{
width: 360
height: 540
color: "black"
ParticleSystem{
anchors.fill: parent
ImageParticle{
groups: ["stars"]
anchors.fill: parent
source: "../images/star.png"
}
Emitter{
group: "stars"
emitRate: 800
lifeSpan: 2400
size: 24
sizeVariation: 8
anchors.fill: parent
}
ImageParticle{
anchors.fill: parent
source: "../images/star.png"
alpha: 0
alphaVariation: 0.2
colorVariation: 1.0
}
Emitter{
anchors.centerIn: parent
emitRate: 400
lifeSpan: 2400
size: 48
sizeVariation: 8
speed: AngleDirection{angleVariation: 180; magnitude: 60}
}
Turbulence{
anchors.fill: parent
strength: 2
}
}
}

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examples/declarative/particles/simple/dynamiccomparison.qml Normal file
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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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 Nokia Corporation 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
Rectangle{
id: root
color: "black"
width: 640
height: 480
ParticleSystem{
id: sys
}
ImageParticle{
system: sys
source: "../images/particle.png"
color: "white"
colorVariation: 1.0
alpha: 0.1
entryEffect: ImageParticle.None
}
Emitter{
id: emitter
system: sys
width: parent.width/2
speed: PointDirection{y: 72; yVariation: 24}
lifeSpan: 10000
emitRate: 1000
enabled: false
size: 32
}
Item{
id: fakeEmitter
function burst(number){
while(number > 0){
var item = fakeParticle.createObject(root);
item.lifeSpan = Math.random() * 5000 + 5000;
item.x = Math.random() * 320 + 320;
item.y = 0;
number--;
}
}
Component{
id: fakeParticle
Image{
id: container
property int lifeSpan: 10000
width: 32
height: 32
source: "../images/particle.png"
y: 0
PropertyAnimation on y{from: -16; to: 480-16; duration: container.lifeSpan; running: true}
SequentialAnimation on opacity{
running: true
NumberAnimation{ from:0; to: 1; duration: 500}
PauseAnimation{ duration: container.lifeSpan - 1000}
NumberAnimation{ from:1; to: 0; duration: 500}
ScriptAction{ script: container.destroy(); }
}
}
}
}
Text{
anchors.left: parent.left
anchors.bottom: parent.bottom
text: "1000 particles"
color: "white"
MouseArea{
anchors.fill: parent
onClicked: emitter.burst(1000);
}
}
Text{
anchors.right: parent.right
anchors.bottom: parent.bottom
text: "1000 items"
color: "white"
MouseArea{
anchors.fill: parent
onClicked: fakeEmitter.burst(1000);
}
}
}