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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D Editor of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.5
Item {
id: dragHandle
width: 16
height: 16
visible: false
opacity: dragHandleMouseArea.containsMouse || dragging ? 1.0 : 0.4
// handleRect is the visible part by default, but dragging can be initiated by clicking
// on the invisible margins, too.
Rectangle {
id: handleRect
anchors.fill: parent
anchors.margins: 4
color: editorContent.selectionColor
}
property int handleType: EditorScene.DragNone
property point offset: Qt.point(width / 2, height / 2)
property int handleIndex: 0
property alias color: handleRect.color
property alias radius: handleRect.radius
property bool dragging: false
property real baseZ: 2
MouseArea {
id: dragHandleMouseArea
anchors.fill: parent
acceptedButtons: Qt.LeftButton
hoverEnabled: true
onPositionChanged: {
var scenePos = editorViewport.mapFromItem(parent, mouseX, mouseY)
editorScene.dragHandleMove(scenePos,
mouse.modifiers & Qt.ShiftModifier,
mouse.modifiers & Qt.ControlModifier,
mouse.modifiers & Qt.AltModifier)
}
onPressed: {
entityTree.focusTree()
var scenePos = editorViewport.mapFromItem(parent, mouseX, mouseY)
editorScene.dragHandlePress(handleType, scenePos, handleIndex)
dragHandle.dragging = true
}
onReleased: {
editorScene.dragHandleRelease()
dragHandle.dragging = false
}
onCanceled: {
editorScene.dragHandleRelease()
dragHandle.dragging = false
}
}
Connections {
target: editorScene
onRepositionDragHandle: {
if (dragMode == dragHandle.handleType && handleIndex == dragHandle.handleIndex) {
x = pos.x - offset.x
y = pos.y - offset.y
dragHandle.visible = visible
z = baseZ + handleZ
}
}
onBeginDragHandlesRepositioning: {
// Repositioning multiple handles can cause two or more handles to overlap and get
// "containsMouse" state simultaneously, if they have hover enabled, so disable it
// for the duration of the handle repositioning.
dragHandleMouseArea.hoverEnabled = false
}
onEndDragHandlesRepositioning: {
dragHandleMouseArea.hoverEnabled = true
}
}
}
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