This class manages the dockable dialogs. We cannot create the dockable dialogs as global objects because it's needed that the translations are loaded before creating the dialogs.
The constructor
The one and only one instance of OsmSearchDialog
The one and only one instance of TravelPropertiesDialog
The one and only one instance of TravelPropertiesDialog
Show the travel properties dialog visible and centered on the screen
The one and only one instance of OsmSearchDialog
The one and only one instance of TravelNotesDialog
The one and only one instance of TravelPropertiesDialog