// ---------------------------------------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Stops and discards this composition engine, closing and freeing its related entities, views and resources.
/// Returns indication of discard executed or aborted (maybe due to cancellation by unsaved changes).
/// </summary>
public bool Stop(bool ForceDiscard = false)
{
base.Stop();
// Stop watching any possible temp-files for Attachments being edited.
DetailAttachmentEditor.StopWatchingAttachmentsFor(this);
// Discard clipboard transfer content
if (ClipboardTransferSourceView != null &&
ClipboardTransferSourceView.OwnerCompositeContainer.OwnerComposition == this.TargetComposition)
{
ClipboardTransferSelectedObjects.Clear();
}
// Discards the visual views.
this.Visualizer.DiscardAllViews();
// Discards remembered for-edit objects
Definitor.DefinitorMaintenance.DomainMaintainer.RememberedTemplateTestConcept.Remove(this.TargetComposition);
Definitor.DefinitorMaintenance.DomainMaintainer.RememberedTemplateTestRelationship.Remove(this.TargetComposition);
// PENDING: Free resources, if any.
this.EntityChanged -= this.ExistenceUpdateAction;
return(this.ExistenceStatus != EExistenceStatus.Modified);
}
/// <summary>
/// Tries to close any pending resources still open (such as temporal Attachment files)
/// </summary>
public bool CloseRelatedResources(CompositionEngine Engine)
{
var Failure = DetailAttachmentEditor.TryLoadPendingAttachmentsFor(Engine);
if (Failure == null)
{
return(true);
}
var Result = Display.DialogMessage("Error!",
Failure.Message + "\n\nProblem: " + Failure.InnerException.Message + "\n\n" +
"Do you want to ignore that problem and continue (potentially lossing information)?",
EMessageType.Question,
System.Windows.MessageBoxButton.OKCancel, System.Windows.MessageBoxResult.Cancel);
return(Result == MessageBoxResult.OK);
}
