private static CommandId[] FilterMapContextMenuCommands(MapContextCommand[] excludeCommands)
{
Hashtable contextCommandTable = new Hashtable();
foreach (MapContextCommand commandEnum in excludeCommands)
contextCommandTable[commandEnum] = commandEnum;
ArrayList commandIds = new ArrayList();
foreach (CommandId id in MapContextMenuIds)
{
if (!contextCommandTable.ContainsKey(_mapCommandIds[id]))
commandIds.Add(id);
}
return (CommandId[])commandIds.ToArray(typeof(CommandId));
}
private MapContextCommand[] CalculateExcludedCommands()
{
MapContextCommand excludedCommand = MapContextCommand.ZoomRegionLevel;
int zoomLevel = _mapControl.ZoomLevel;
if (zoomLevel == StreetLevel)
{
excludedCommand = MapContextCommand.ZoomStreetLevel;
}
else if (zoomLevel == CityLevel)
{
excludedCommand = MapContextCommand.ZoomCityLevel;
}
else if (zoomLevel < RegionLevel)
{
excludedCommand = MapContextCommand.ZoomStreetLevel;
}
return(new MapContextCommand[] { excludedCommand });
}
internal static MapContextCommand ShowMapContextMenu(Control parent, Point location, MapContextCommand[] hideCommands, CommandManager commandManager)
{
Command returnCommand;
using (CommandLoader commandLoader = new CommandLoader(commandManager, FilterMapContextMenuCommands(hideCommands)))
{
CommandContextMenuDefinition ccmd = new CommandContextMenuDefinition();
ccmd.CommandBar = false;
ccmd.Entries.Add(CommandId.MapAddPushpin, false, true);
ccmd.Entries.Add(CommandId.MapZoomStreetLevel, false, false);
ccmd.Entries.Add(CommandId.MapZoomCityLevel, false, false);
ccmd.Entries.Add(CommandId.MapZoomRegionLevel, false, false);
ccmd.Entries.Add(CommandId.MapCenterMap, false, false);
returnCommand = CommandContextMenu.ShowModal(
commandManager, parent, location, ccmd);
}
if (returnCommand != null)
return (MapContextCommand)_mapCommandIds[Enum.Parse(typeof(CommandId), returnCommand.Identifier)];
else
return MapContextCommand.None;
}
public void ShowContextMenu(CommandManager commandManager)
{
MapContextCommand command =
MapContextMenu.ShowMapContextMenu(_mapControl, _mapControl.PointToScreen(new Point(_event.X, _event.Y)),
CalculateExcludedCommands(), commandManager);
switch (command)
{
case MapContextCommand.AddPushpin:
AddPushpin();
break;
case MapContextCommand.CenterMap:
CenterMap();
break;
case MapContextCommand.ZoomCityLevel:
ZoomCityLevel();
break;
case MapContextCommand.ZoomStreetLevel:
ZoomStreetLevel();
break;
case MapContextCommand.ZoomRegionLevel:
ZoomRegionLevel();
break;
case MapContextCommand.None:
break;
default:
Debug.Fail("Unknown MapContextCommand: " + command.ToString());
break;
}
}
