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// Copyright (C) 2019 Julian Sherollari <jdotsh@gmail.com>
// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.Dialogs
import QtQuick.Controls
import QtPositioning
import QtLocation
import QtCore
import Qt.GeoJson
import "mapitems"
ApplicationWindow {
id: win
visible: true
width: 1024
height: 1024
menuBar: mainMenu
title: qsTr("GeoJSON Viewer: ") + view.map.center +
" zoom " + view.map.zoomLevel.toFixed(3)
+ " min " + view.map.minimumZoomLevel +
" max " + view.map.maximumZoomLevel
FileDialog {
visible: false
id: fileDialog
title: "Choose a GeoJSON file"
fileMode: FileDialog.OpenFile
currentFolder: dataPath
nameFilters: ["GeoJSON files (*.geojson *.json)"]
onAccepted: {
view.clearAllItems()
geoJsoner.load(fileDialog.selectedFile)
}
}
FileDialog {
visible: false
id: fileWriteDialog
title: "Write your geometry to a file"
fileMode: FileDialog.SaveFile
currentFolder: StandardPaths.writableLocation(StandardPaths.TempLocation)
nameFilters: ["GeoJSON files (*.geojson *.json)"]
onAccepted: {
geoJsoner.dumpGeoJSON(geoJsoner.toGeoJson(miv), fileWriteDialog.selectedFile);
}
}
FileDialog {
visible: false
id: debugWriteDialog
title: "Write Qvariant debug view"
fileMode: FileDialog.SaveFile
currentFolder: StandardPaths.writableLocation(StandardPaths.TempLocation)
nameFilters: ["GeoJSON files (*.geojson *.json)"]
onAccepted: {
geoJsoner.writeDebug(geoJsoner.toGeoJson(miv), debugWriteDialog.selectedFile);
}
}
MenuBar {
id: mainMenu
Menu {
title: "&File"
id : geoJsonMenu
MenuItem {
text: "&Open"
onTriggered: {
fileDialog.open()
}
}
MenuItem {
text: "&Export"
onTriggered: {
fileWriteDialog.open()
}
}
MenuItem {
text: "E&xit"
onTriggered: Qt.quit()
}
}
Menu {
title: "&Debug"
id : debugMenu
MenuItem {
text: "Print debug data to &file"
onTriggered: {
debugWriteDialog.open()
}
}
MenuItem {
text: "&Print debug data"
onTriggered: {
geoJsoner.print(miv)
}
}
}
}
GeoJsoner {
id: geoJsoner
}
Shortcut {
enabled: view.map.zoomLevel < view.map.maximumZoomLevel
sequence: StandardKey.ZoomIn
onActivated: view.map.zoomLevel = Math.round(view.map.zoomLevel + 1)
}
Shortcut {
enabled: view.map.zoomLevel > view.map.minimumZoomLevel
sequence: StandardKey.ZoomOut
onActivated: view.map.zoomLevel = Math.round(view.map.zoomLevel - 1)
}
MapView {
id: view
anchors.fill: parent
map.center: QtPositioning.coordinate(43.59, 13.50) // Ancona, Italy
map.plugin: Plugin { name: "osm" }
map.zoomLevel: 4
property variant unfinishedItem: 'undefined'
signal showMainMenu(variant coordinate)
function addGeoItem(item)
{
var count = view.map.mapItems.length
var co = Qt.createComponent('mapitems/'+item+'.qml')
if (co.status === Component.Ready) {
unfinishedItem = co.createObject(map)
unfinishedItem.setGeometry(tapHandler.lastCoordinate)
unfinishedItem.addGeometry(hoverHandler.currentCoordinate, false)
view.map.addMapItem(unfinishedItem)
unfinishedItem.parent = miv
} else {
console.log(item + " is not supported right now, please call us later.")
}
}
function clearAllItems()
{
var count = view.map.mapItems.length
for (var i = count-1; i>=0; i--){
var item = view.map.mapItems[i]
item.parent = view.map
view.map.removeMapItem(item)
}
}
MapItemView {
id: miv
parent: view.map
model: geoJsoner.model
delegate: GeoJsonDelegate {
}
}
Menu {
id: mapPopupMenu
property variant coordinate
MenuItem {
text: qsTr("Rectangle")
onTriggered: view.addGeoItem("RectangleItem")
}
MenuItem {
text: qsTr("Circle")
onTriggered: view.addGeoItem("CircleItem")
}
MenuItem {
text: qsTr("Polyline")
onTriggered: view.addGeoItem("PolylineItem")
}
MenuItem {
text: qsTr("Polygon")
onTriggered: view.addGeoItem("PolygonItem")
}
MenuItem {
text: qsTr("Clear all")
onTriggered: view.clearAllItems()
}
function show(coordinate) {
mapPopupMenu.coordinate = coordinate
mapPopupMenu.popup()
}
}
HoverHandler {
id: hoverHandler
property variant currentCoordinate
grabPermissions: PointerHandler.CanTakeOverFromItems | PointerHandler.CanTakeOverFromHandlersOfDifferentType
onPointChanged: {
currentCoordinate = view.map.toCoordinate(hoverHandler.point.position)
if (view.unfinishedItem !== 'undefined')
view.unfinishedItem.addGeometry(view.map.toCoordinate(hoverHandler.point.position), true)
}
}
TapHandler {
id: tapHandler
property variant lastCoordinate
acceptedButtons: Qt.LeftButton | Qt.RightButton
onSingleTapped: (eventPoint, button) => {
lastCoordinate = view.map.toCoordinate(tapHandler.point.position)
if (button === Qt.RightButton) {
if (view.unfinishedItem !== 'undefined') {
view.unfinishedItem.finishAddGeometry()
view.unfinishedItem = 'undefined'
} else
mapPopupMenu.show(lastCoordinate)
} else if (button === Qt.LeftButton) {
if (view.unfinishedItem !== 'undefined') {
if (view.unfinishedItem.addGeometry(view.map.toCoordinate(tapHandler.point.position), false)) {
view.unfinishedItem.finishAddGeometry()
view.unfinishedItem = 'undefined'
}
}
}
}
}
TapHandler {
acceptedButtons: Qt.LeftButton
onDoubleTapped: (eventPoint, button) => {
var preZoomPoint = view.map.toCoordinate(eventPoint.position);
view.map.zoomLevel = Math.floor(view.map.zoomLevel + 1)
var postZoomPoint = view.map.toCoordinate(eventPoint.position);
var dx = postZoomPoint.latitude - preZoomPoint.latitude;
var dy = postZoomPoint.longitude - preZoomPoint.longitude;
view.map.center = QtPositioning.coordinate(view.map.center.latitude - dx,
view.map.center.longitude - dy);
}
}
TapHandler {
acceptedButtons: Qt.RightButton
onDoubleTapped: (eventPoint, button) => {
var preZoomPoint = view.map.toCoordinate(eventPoint.position);
view.map.zoomLevel = Math.floor(view.map.zoomLevel - 1)
var postZoomPoint = view.map.toCoordinate(eventPoint.position);
var dx = postZoomPoint.latitude - preZoomPoint.latitude;
var dy = postZoomPoint.longitude - preZoomPoint.longitude;
view.map.center = QtPositioning.coordinate(view.map.center.latitude - dx,
view.map.center.longitude - dy);
}
}
}
}
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