- Qt 5.5
- Qt Quick
- Qt Quick Examples - Threading
- workerscript.qml Example File
- Qt 5.5.1 Reference Documentation

# workerscript.qml Example File

threading/workerscript/workerscript.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** 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:
    **
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    ** modification, are permitted provided that the following conditions are
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    import QtQuick 2.0

    Rectangle {
        width: 320; height: 480

        WorkerScript {
            id: myWorker
            source: "workerscript.js"

            onMessage: {
                if (messageObject.row == rowSpinner.value && messageObject.column == columnSpinner.value){ //Not an old result
                    if (messageObject.result == -1)
                        resultText.text = "Column must be <= Row";
                    else
                        resultText.text = messageObject.result;
                }
            }
        }
        Row {
            y: 24
            spacing: 24
            anchors.horizontalCenter: parent.horizontalCenter
            Spinner {
                id: rowSpinner
                label: "Row"
                onValueChanged: {
                    resultText.text = "Loading...";
                    myWorker.sendMessage( { row: rowSpinner.value, column: columnSpinner.value } );
                }
            }

            Spinner {
                id: columnSpinner
                label: "Column"
                onValueChanged: {
                    resultText.text = "Loading...";
                    myWorker.sendMessage( { row: rowSpinner.value, column: columnSpinner.value } );
                }
            }
        }

        Text {
            id: resultText
            y: 180
            width: parent.width
            horizontalAlignment: Text.AlignHCenter
            wrapMode: Text.WordWrap
            font.pixelSize: 32
        }

        Text {
            text: "Pascal's Triangle Calculator"
            anchors { horizontalCenter: parent.horizontalCenter; bottom: parent.bottom; bottomMargin: 50 }
        }
    }