/// <summary>
/// The get icon for parameter override.
/// </summary>
/// <param name="thingStatus">
/// The parameter or override.
/// </param>
/// <returns>
/// The <see cref="object"/>.
/// </returns>
private object GetIconForParameterOverride(ThingStatus thingStatus, ParameterUsageKind usage)
{
Uri uri = null;
switch (usage)
{
case ParameterUsageKind.Unused:
uri = new Uri("pack://application:,,,/CDP4Composition;component/Resources/Images/orangeball.jpg");
break;
case ParameterUsageKind.SubscribedByOthers:
uri = new Uri("pack://application:,,,/CDP4Composition;component/Resources/Images/blueball.gif");
break;
case ParameterUsageKind.Subscribed:
uri = new Uri("pack://application:,,,/CDP4Composition;component/Resources/Images/whiteball.jpg");
break;
}
if (uri == null)
{
return(null);
}
return(thingStatus.HasError
? IconUtilities.WithErrorOverlay(uri)
: thingStatus.HasRelationship
? IconUtilities.WithOverlay(uri, IconUtilities.RelationshipOverlayUri, OverlayPositionKind.TopRight)
: new BitmapImage(uri));
}
/// <summary>
/// Queries the <see cref="BitmapSource"/> with an error icon overlayed from the cache if the cache contains it else the <see cref="BitmapSource"/>
/// is created, added to the cache and then returned.
/// </summary>
/// <param name="uri">
/// The uri of the <see cref="BitmapSource"/>
/// </param>
/// <returns>
/// An instance of <see cref="BitmapSource"/>
/// </returns>
public BitmapSource QueryErrorOverlayBitmapSource(Uri uri)
{
BitmapSource bitmapSource;
this.bitmapSources.TryGetValue(uri, out bitmapSource);
if (bitmapSource == null)
{
bitmapSource = IconUtilities.WithErrorOverlay(uri);
this.bitmapSources.Add(uri, bitmapSource);
}
return(bitmapSource);
}