SwipeArea.qml Example File
threejs/oneqt/SwipeArea.qml/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtCanvas3D module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL3$ ** 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 http://www.qt.io/terms-conditions. For further ** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPLv3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or later as published by the Free ** Software Foundation and appearing in the file LICENSE.GPL included in ** the packaging of this file. Please review the following information to ** ensure the GNU General Public License version 2.0 requirements will be ** met: http://www.gnu.org/licenses/gpl-2.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.0 MouseArea { id: mouseSwipeArea preventStealing: true property real prevX: 0 property real prevY: 0 property real velocityX: 0.0 property real velocityY: 0.0 property int startX: 0 property int startY: 0 property bool tracing: false signal swipeLeft() signal swipeRight() signal swipeUp() signal swipeDown() onPressed: { startX = mouse.x startY = mouse.y prevX = mouse.x prevY = mouse.y velocityX = 0 velocityY = 0 tracing = true } onPositionChanged: { if ( !tracing ) return var currVelX = (mouse.x-prevX) var currVelY = (mouse.y-prevY) velocityX = (velocityX + currVelX)/2.0; velocityY = (velocityY + currVelY)/2.0; prevX = mouse.x prevY = mouse.y if ( velocityX > 15 && mouse.x > mouseSwipeArea.width * 0.25 ) { tracing = false // Swipe Right mouseSwipeArea.swipeRight() } else if ( velocityX < -15 && mouse.x < mouseSwipeArea.width * 0.75 ) { tracing = false // Swipe Left mouseSwipeArea.swipeLeft() } else if (velocityY > 15 && mouse.y > mouseSwipeArea.height * 0.25 ) { tracing = false // Swipe Down mouseSwipeArea.swipeDown() } else if ( velocityY < -15 && mouse.y < mouseSwipeArea.height * 0.75 ) { tracing = false // Swipe Up mouseSwipeArea.swipeUp() } } }
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