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Diffstat (limited to 'examples/quick/scenegraph/graph/main.qml')
-rw-r--r-- | examples/quick/scenegraph/graph/main.qml | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/graph/main.qml b/examples/quick/scenegraph/graph/main.qml new file mode 100644 index 0000000000..ad952bcf1a --- /dev/null +++ b/examples/quick/scenegraph/graph/main.qml @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** 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 Graph 1.0 + +Item { + width: 800 + height: 400 + + Graph { + id: graph + anchors.fill: parent + anchors.margins: 100 + + function newSample(i) { + return (Math.sin(i / 100.0 * Math.PI * 2) + 1) * 0.4 + Math.random() * 0.05; + } + + Component.onCompleted: { + for (var i=0; i<100; ++i) + appendSample(newSample(i)); + } + + property int offset: 100; + } + + Timer { + id: timer + interval: 500 + repeat: true + running: true + onTriggered: { + graph.removeFirstSample(); + graph.appendSample(graph.newSample(++graph.offset)); + } + + } + + Rectangle { + anchors.fill: graph + color: "transparent" + border.color: "black" + border.width: 2 + } + +} |