// TODO: If we're setting an icon's state to PointerOver, maybe make sure it's the only icon in a PointerOver state?
// Hope that's not too slow.
// Maybe keep a list of all icons currently in a PointerOver state...
public void SetIconState(Guid iconId, MapIconState iconState)
{
MapIcon matchingIcon = DigiTransitMapControl.MapElements
.OfType <MapIcon>()
.FirstOrDefault(x => (Guid)x.GetValue(PoiIdProperty) == iconId);
if (matchingIcon == null)
{
return;
}
// The MapIconChanged callback in the Attached Property handles Image changing on State changes. See MapElementExtensions.cs.
matchingIcon.SetValue(MapIconStateProperty, iconState);
// Only allow one icon to be highlighted at at time by external callers.
if (iconState != MapIconState.None)
{
foreach (MapIcon activeIcon in DigiTransitMapControl.MapElements.
OfType <MapIcon>()
.Where(x => (MapIconState)x.GetValue(MapIconStateProperty) != MapIconState.None &&
(Guid)x.GetValue(PoiIdProperty) != iconId))
{
activeIcon.SetValue(MapIconStateProperty, MapIconState.None);
}
}
}
static string ToCustomStyleEntryState(MapIconState state)
{
if (state.HasFlag(MapIconState.Disabled))
{
return("disabled");
}
else if (state.HasFlag(MapIconState.Selected))
{
return("myNamespace.selected");
}
else if (state.HasFlag(MapIconState.Hover))
{
return("myNamespace.hover");
}
else
{
return(string.Empty);
}
}
static string ToDefaultStyleEntryState(MapIconState state)
{
if (state.HasFlag(MapIconState.Disabled))
{
return(MapStyleSheetEntryStates.Disabled);
}
else if (state.HasFlag(MapIconState.Selected))
{
return(MapStyleSheetEntryStates.Selected);
}
else if (state.HasFlag(MapIconState.Hover))
{
return(MapStyleSheetEntryStates.Hover);
}
else
{
return(string.Empty);
}
}
public SetIconState(Guid iconId, MapIconState newState)
{
MapIconId = iconId;
NewState = newState;
}
public static void SetMapIconState(DependencyObject element, MapIconState state)
{
element.SetValue(MapIconStateProperty, state);
}
