topic Adding a drop down menu to the map in Qt Maps SDK Questions

Adding a drop down menu to the map

FatmaAkdemir — Wed, 26 May 2021 13:53:18 GMT

Is there a way to enable user to see a drop down menu when he/she right clicks to the map? And when he selects one of the items in that menu, some action needs to be performed.

Re: Adding a drop down menu to the map

JaredCaccamo — Fri, 28 May 2021 18:47:38 GMT

Hello @FatmaAkdemir,

Yes using a combination of the MapView and QtQuick.Controls you definitely could. You would need to listen for the MapView.onMouseClicked signal and then use mouse.x and mouse.y then use those to update the x and y of the QtQuick.Controls ComboBox(drop down menu) which can take a ListModel(list of items in that menu) then you can listen for the ComboBox.onActivated(int index) signal for the selection from that list and use the index to know which model from that list was selected and do whatever following action you would like.

Here is an example:

import QtQuick 2.6 import QtQuick.Controls 2.2 import QtQuick.Dialogs 1.2 import Esri.ArcGISRuntime 100.11 ApplicationWindow { id: appWindow width: 800 height: 600 title: "Example" property var myExModel : ["apple", "pie", "cherry", "pie"] // add a mapView component MapView { anchors.fill: parent // set focus to enable keyboard navigation focus: true // add a map to the mapview Map { // add the ArcGISStreets basemap to the map initBasemapStyle: Enums.BasemapStyleArcGISStreets } onMouseClicked: { myComboBox.x = mouse.x; myComboBox.y = mouse.y; myComboBox.visible = true; } } ComboBox { id: myComboBox model: myExModel visible: false onActivated: { myDialog.text = myExModel[index]; visible = false; myDialog.open(); } } MessageDialog { id: myDialog } }

Hope you find this helpful!

Sincerely,

Jared

Re: Adding a drop down menu to the map

FatmaAkdemir — Wed, 02 Jun 2021 12:22:37 GMT

Hi @JaredCaccamo ,

Thank you for the detailed answer. Unfortunately I am not using QML. Should I use QComboBox in this case? In fact I only need a pop-up button ("Delete") when user right clicks on a graphic. After user clicks on that button, graphic will be deleted from the map.

Re: Adding a drop down menu to the map

JaredCaccamo — Wed, 02 Jun 2021 15:51:55 GMT

Hello again @FatmaAkdemir ,

In that case you can use "mousePressed" with "RightButton" to catch the mouse events and "QMenu::exec" to open a context menu. Or if you don't want to use a menu, you could use "QPushButton" instead.

Documentation for C++:

https://developers.arcgis.com/qt/cpp/api-reference/esri-arcgisruntime-mapgraphicsview.html

https://doc.qt.io/qt-5/qmenu.html#exec-1

https://doc.qt.io/qt-5/qpushbutton.html

Sincerely,

Jared