static Func <TValue> MakeFieldValueGetter(IGraphElementModel model, string fieldName)
{
var target = model is IHasInspectorSurrogate hasInspectorSurrogate ? hasInspectorSurrogate.Surrogate : model;
var fieldInfo = SerializedFieldsInspector.GetInspectableField(target, fieldName);
if (fieldInfo != null)
{
Debug.Assert(typeof(TValue) == fieldInfo.FieldType);
return(() => (TValue)fieldInfo.GetValue(target));
}
return(null);
}
/// <summary>
/// Default command handler
/// </summary>
/// <param name="graphToolState">The state to modify.</param>
/// <param name="command">The command to apply to the state.</param>
public static void DefaultCommandHandler(GraphToolState graphToolState, SetModelFieldCommand command)
{
graphToolState.PushUndo(command);
if (command.Models != null)
{
using (var updater = graphToolState.GraphViewState.UpdateScope)
{
foreach (var model in command.Models)
{
var target = model is IHasInspectorSurrogate hasInspectorSurrogate ? hasInspectorSurrogate.Surrogate : model;
if (target != null)
{
var fieldInfo = SerializedFieldsInspector.GetInspectableField(target, command.FieldName);
fieldInfo?.SetValue(target, command.Value);
}
}
updater.MarkChanged(command.Models);
}
}
}
