Animators - Render thread animation system

This introduces 6 new QML types for animating state in the
scene graph when the UI thread is blocked. The QObject property
being animated is updated after the animation completes.

It works also with the "windows" and "basic" render loops, but
offer litte benefit then compared to in the "threaded" case.

Change-Id: Ic19e47c898c0b8bd53e457db922b3c9c457c8147
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 282 insertions, 0 deletions

diff --git a/src/quick/doc/snippets/qml/animators.qml b/src/quick/doc/snippets/qml/animators.qml
new file mode 100644
index 0000000000..4b9e4f4250
--- /dev/null
+++ b/src/quick/doc/snippets/qml/animators.qml
@@ -0,0 +1,282 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the documentation 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 2.2
+
+Rectangle {
+
+    width: 320
+    height: 480
+
+    color: "steelblue"
+
+    Grid {
+        anchors.fill: parent
+        anchors.margins: 20
+        columnSpacing: 30
+        rowSpacing: 30
+        columns: 4
+        rows: 4
+
+        property real cellWidth: (width - (columns - 1) * columnSpacing) / columns;
+        property real cellHeight: (height - (rows - 1) * rowSpacing) / rows;
+
+        Item {
+            width: parent.cellWidth
+            height: parent.cellHeight
+//! [x on]
+Rectangle {
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    XAnimator on x {
+        from: 10;
+        to: 0;
+        duration: 1000
+    }
+}
+//! [x on]
+        }
+        Item {
+            width: parent.cellWidth
+            height: parent.cellHeight
+//! [x target]
+Rectangle {
+    id: xmovingBox
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    XAnimator {
+        target: xmovingBox;
+        from: 10;
+        to: 0;
+        duration: 1000
+        running: true
+    }
+}
+//! [x target]
+    }
+    Item {
+        width: parent.cellWidth
+        height: parent.cellHeight
+//! [y on]
+Rectangle {
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    YAnimator on y {
+        from: 10;
+        to: 0;
+        duration: 1000
+    }
+}
+//! [y on]
+    }
+    Item {
+        width: parent.cellWidth
+        height: parent.cellHeight
+//! [y target]
+Rectangle {
+    id: ymovingBox
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    YAnimator {
+        target: ymovingBox;
+        from: 10;
+        to: 0;
+        duration: 1000
+        running: true
+    }
+}
+//! [y target]
+    }
+//! [rotation on]
+Rectangle {
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    RotationAnimator on rotation {
+        from: 0;
+        to: 360;
+        duration: 1000
+    }
+}
+//! [rotation on]
+//! [rotation target]
+Rectangle {
+    id: rotatingBox
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    RotationAnimator {
+        target: rotatingBox;
+        from: 0;
+        to: 360;
+        duration: 1000
+        running: true
+    }
+}
+//! [rotation target]
+//! [scale on]
+Rectangle {
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    ScaleAnimator on scale {
+        from: 0.5;
+        to: 1;
+        duration: 1000
+    }
+}
+//! [scale on]
+//! [scale target]
+Rectangle {
+    id: scalingBox
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    ScaleAnimator {
+        target: scalingBox;
+        from: 0.5;
+        to: 1;
+        duration: 1000
+        running: true
+    }
+}
+//! [scale target]
+//! [opacity on]
+Rectangle {
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    OpacityAnimator on opacity{
+        from: 0;
+        to: 1;
+        duration: 1000
+    }
+}
+//! [opacity on]
+//! [opacity target]
+Rectangle {
+    id: opacityBox
+    width: 50
+    height: 50
+    color: "lightsteelblue"
+    OpacityAnimator {
+        target: opacityBox;
+        from: 0;
+        to: 1;
+        duration: 1000
+        running: true
+    }
+}
+//! [opacity target]
+//![shaderon]
+ShaderEffect {
+    width: 50
+    height: 50
+    property variant t;
+    UniformAnimator on t {
+        from: 0
+        to: 1
+        duration: 1000
+    }
+    fragmentShader:
+    "
+        uniform lowp float t;
+        varying highp vec2 qt_TexCoord0;
+        void main() {
+            lowp float c = qt_TexCoord0.y;
+            gl_FragColor = vec4(c * t, 0, 0, 1);
+        }
+    "
+}
+//![shaderon]
+//![shader target]
+ShaderEffect {
+    id: shader
+    width: 50
+    height: 50
+    property variant t;
+    UniformAnimator {
+        target: shader
+        uniform: "t"
+        from: 0
+        to: 1
+        duration: 1000
+        running: true
+    }
+    fragmentShader:
+    "
+        uniform lowp float t;
+        varying highp vec2 qt_TexCoord0;
+        void main() {
+            lowp float c = qt_TexCoord0.y;
+            gl_FragColor = vec4(0, 0, c * t, 1);
+        }
+    "
+}
+//![shader target]
+//![mixed]
+Rectangle {
+    id: mixBox
+    width: 50
+    height: 50
+    ParallelAnimation {
+        ColorAnimation {
+            target: mixBox
+            property: "color"
+            from: "forestgreen"
+            to: "lightsteelblue";
+            duration: 1000
+        }
+        ScaleAnimator {
+            target: mixBox
+            from: 2
+            to: 1
+            duration: 1000
+        }
+        running: true
+    }
+}
+//! [mixed]
+    }
+}