forked from qt-creator/qt-creator
783e5d0a8d
Using the MouseArea3D linked to gizmo to manage the drag leads to slight unwanted drift on the drag plane, as it moves with the gizmo. Fixed by using a helper MouseArea3D to calculate drag vector. Helper area's transform is set at mouse press time and is not changed during the drag. Change-Id: I50d3f738277bd34005c977423d114abc8dbed520 Fixes: QDS-1312 Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io> Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
115 lines
3.6 KiB
QML
115 lines
3.6 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2019 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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****************************************************************************/
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import QtQuick 2.0
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import QtQuick3D 1.0
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import MouseArea3D 1.0
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Model {
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id: rootModel
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property View3D view3D
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property alias color: gizmoMaterial.emissiveColor
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property alias priority: mouseArea.priority
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property Node targetNode: null
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property bool dragging: mouseArea.dragging
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property bool active: false
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property MouseArea3D dragHelper: null
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readonly property bool hovering: mouseArea.hovering
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property vector3d _pointerPosPressed
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property vector3d _targetStartPos
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signal pressed(var mouseArea)
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signal dragged(var mouseArea, vector3d sceneRelativeDistance)
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signal released(var mouseArea, vector3d sceneRelativeDistance)
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rotationOrder: Node.XYZr
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source: "#Rectangle"
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DefaultMaterial {
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id: gizmoMaterial
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emissiveColor: "white"
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lighting: DefaultMaterial.NoLighting
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cullingMode: Material.DisableCulling
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}
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materials: gizmoMaterial
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function handlePressed(mouseArea, scenePos)
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{
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if (!targetNode)
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return;
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_pointerPosPressed = mouseArea.dragHelper.mapPositionToScene(scenePos);
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if (targetNode.orientation === Node.RightHanded)
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_pointerPosPressed.z = -_pointerPosPressed.z;
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var sp = targetNode.scenePosition;
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_targetStartPos = Qt.vector3d(sp.x, sp.y, sp.z);
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pressed(mouseArea);
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}
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function calcRelativeDistance(mouseArea, scenePos)
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{
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var scenePointerPos = mouseArea.dragHelper.mapPositionToScene(scenePos);
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if (targetNode.orientation === Node.RightHanded)
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scenePointerPos.z = -scenePointerPos.z;
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return scenePointerPos.minus(_pointerPosPressed);
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}
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function handleDragged(mouseArea, scenePos)
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{
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if (!targetNode)
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return;
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dragged(mouseArea, calcRelativeDistance(mouseArea, scenePos));
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}
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function handleReleased(mouseArea, scenePos)
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{
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if (!targetNode)
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return;
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released(mouseArea, calcRelativeDistance(mouseArea, scenePos));
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}
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MouseArea3D {
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id: mouseArea
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view3D: rootModel.view3D
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x: -60
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y: -60
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width: 120
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height: 120
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grabsMouse: targetNode
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active: rootModel.active
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dragHelper: rootModel.dragHelper
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onPressed: rootModel.handlePressed(mouseArea, scenePos)
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onDragged: rootModel.handleDragged(mouseArea, scenePos)
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onReleased: rootModel.handleReleased(mouseArea, scenePos)
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}
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}
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