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>

2 files changed, 205 insertions, 0 deletions

diff --git a/examples/declarative/particles/imageparticle/colored.qml b/examples/declarative/particles/imageparticle/colored.qml
new file mode 100644
index 0000000000..82b48ed962
--- /dev/null
+++ b/examples/declarative/particles/imageparticle/colored.qml
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** 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
+        }
+    }
+}
diff --git a/examples/declarative/particles/simple/dynamiccomparison.qml b/examples/declarative/particles/simple/dynamiccomparison.qml
new file mode 100644
index 0000000000..5cfb3427e8
--- /dev/null
+++ b/examples/declarative/particles/simple/dynamiccomparison.qml
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** 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);
+        }
+    }
+}