MapComponent.qml Example File

places/items/MapComponent.qml
/**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/
import QtQuick 2.5 import QtQuick.Controls 1.4 import QtPositioning 5.5 import QtLocation 5.6 import "../helper.js" as Helper Map { id: map property bool followme: false property variant scaleLengths: [5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000, 2000000] function calculateScale() { var coord1, coord2, dist, text, f f = 0 coord1 = map.toCoordinate(Qt.point(0,scale.y)) coord2 = map.toCoordinate(Qt.point(0+scaleImage.sourceSize.width,scale.y)) dist = Math.round(coord1.distanceTo(coord2)) if (dist === 0) { // not visible } else { for (var i = 0; i < scaleLengths.length-1; i++) { if (dist < (scaleLengths[i] + scaleLengths[i+1]) / 2 ) { f = scaleLengths[i] / dist dist = scaleLengths[i] break; } } if (f === 0) { f = dist / scaleLengths[i] dist = scaleLengths[i] } } text = Helper.formatDistance(dist) scaleImage.width = (scaleImage.sourceSize.width * f) - 2 * scaleImageLeft.sourceSize.width scaleText.text = text } center { // The Qt Company in Oslo latitude: 59.9485 longitude: 10.7686 } gesture.flickDeceleration: 3000 gesture.enabled: true onCopyrightLinkActivated: Qt.openUrlExternally(link) onCenterChanged:{ scaleTimer.restart() if (map.followme) if (map.center != positionSource.position.coordinate) map.followme = false } onZoomLevelChanged:{ scaleTimer.restart() if (map.followme) map.center = positionSource.position.coordinate } onWidthChanged:{ scaleTimer.restart() } onHeightChanged:{ scaleTimer.restart() } Keys.onPressed: { if (event.key === Qt.Key_Plus) { map.zoomLevel++ } else if (event.key === Qt.Key_Minus) { map.zoomLevel-- } } Timer { id: scaleTimer interval: 100 running: false repeat: false onTriggered: { map.calculateScale() } } Item { id: scale visible: scaleText.text != "0 m" z: map.z + 3 anchors.bottom: parent.bottom anchors.right: parent.right anchors.margins: 20 height: scaleText.height * 2 width: scaleImage.width Image { id: scaleImageLeft source: "../../resources/scale_end.png" anchors.bottom: parent.bottom anchors.right: scaleImage.left } Image { id: scaleImage source: "../../resources/scale.png" anchors.bottom: parent.bottom anchors.right: scaleImageRight.left } Image { id: scaleImageRight source: "../../resources/scale_end.png" anchors.bottom: parent.bottom anchors.right: parent.right } Label { id: scaleText color: "#004EAE" anchors.centerIn: parent text: "0 m" } Component.onCompleted: { map.calculateScale(); } } MapQuickItem { id: poiTheQtComapny sourceItem: Rectangle { width: 14; height: 14; color: "#e41e25"; border.width: 2; border.color: "white"; smooth: true; radius: 7 } coordinate { latitude: 59.9485 longitude: 10.7686 } opacity:1.0 anchorPoint: Qt.point(sourceItem.width/2, sourceItem.height/2) } MapQuickItem { sourceItem: Text{ text: "The Qt Company" color:"#242424" font.bold: true styleColor: "#ECECEC" style: Text.Outline } coordinate: poiTheQtComapny.coordinate anchorPoint: Qt.point(-poiTheQtComapny.sourceItem.width * 0.5,poiTheQtComapny.sourceItem.height * 1.5) } PositionSource{ id: positionSource active: followme onPositionChanged: { map.center = positionSource.position.coordinate } } Slider { id: zoomSlider; z: map.z + 3 minimumValue: map.minimumZoomLevel; maximumValue: map.maximumZoomLevel; anchors.margins: 10 anchors.bottom: scale.top anchors.top: parent.top anchors.right: parent.right orientation : Qt.Vertical value: map.zoomLevel onValueChanged: { map.zoomLevel = value } } }