qt-creator/share/qtcreator/qml/qmlpuppet/mockfiles/DirectionalDraggable.qml

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** Copyright (C) 2019 The Qt Company Ltd.
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
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import QtQuick 2.0
import QtQuick3D 1.0
import MouseArea3D 1.0

Model {
    id: rootModel
    rotationOrder: Node.XYZr

    property View3D view3D
    property alias color: material.emissiveColor
    property Node targetNode: null
    property bool dragging: false
    property bool active: false

    readonly property bool hovering: mouseAreaYZ.hovering || mouseAreaXZ.hovering

    property var _pointerPosPressed
    property var _targetStartPos

    signal pressed(var mouseArea)
    signal dragged(var mouseArea, vector3d sceneRelativeDistance)
    signal released(var mouseArea, vector3d sceneRelativeDistance)

    materials: DefaultMaterial {
        id: material
        emissiveColor: "white"
        lighting: DefaultMaterial.NoLighting
    }

    function handlePressed(mouseArea, scenePos)
    {
        if (!targetNode)
            return;

        var maskedPosition = Qt.vector3d(scenePos.x, 0, 0);
        _pointerPosPressed = mouseArea.mapPositionToScene(maskedPosition);
        var sp = targetNode.scenePosition;
        _targetStartPos = Qt.vector3d(sp.x, sp.y, sp.z);
        dragging = true;
        pressed(mouseArea);
    }

    function calcRelativeDistance(mouseArea, scenePos)
    {
        var maskedPosition = Qt.vector3d(scenePos.x, 0, 0);
        var scenePointerPos = mouseArea.mapPositionToScene(maskedPosition);
        return Qt.vector3d(scenePointerPos.x - _pointerPosPressed.x,
                           scenePointerPos.y - _pointerPosPressed.y,
                           scenePointerPos.z - _pointerPosPressed.z);
    }

    function handleDragged(mouseArea, scenePos)
    {
        if (!targetNode)
            return;

        dragged(mouseArea, calcRelativeDistance(mouseArea, scenePos));
    }

    function handleReleased(mouseArea, scenePos)
    {
        if (!targetNode)
            return;

        released(mouseArea, calcRelativeDistance(mouseArea, scenePos));
        dragging = false;
    }

    MouseArea3D {
        id: mouseAreaYZ
        view3D: rootModel.view3D
        x: 0
        y: -1.5
        width: 12
        height: 3
        rotation: Qt.vector3d(0, 0, 90)
        grabsMouse: targetNode
        active: rootModel.active
        onPressed: rootModel.handlePressed(mouseAreaYZ, scenePos)
        onDragged: rootModel.handleDragged(mouseAreaYZ, scenePos)
        onReleased: rootModel.handleReleased(mouseAreaYZ, scenePos)
    }

    MouseArea3D {
        id: mouseAreaXZ
        view3D: rootModel.view3D
        x: 0
        y: -1.5
        width: 12
        height: 3
        rotation: Qt.vector3d(0, 90, 90)
        grabsMouse: targetNode
        active: rootModel.active
        onPressed: rootModel.handlePressed(mouseAreaXZ, scenePos)
        onDragged: rootModel.handleDragged(mouseAreaXZ, scenePos)
        onReleased: rootModel.handleReleased(mouseAreaXZ, scenePos)
    }
}