/// <summary>
/// Tries to close the supplied document engine and returns indication of action executed or cancelled by user.
/// </summary>
public bool CloseComposition(CompositionEngine Engine)
{
if (Engine.ExistenceStatus == EExistenceStatus.Modified)
{
var Result = Display.DialogMessage("Confirmation",
"The Composition \"" + Engine.TargetComposition.Name + "\" has been modified.\n" +
(Engine.FullLocation != null ? "\nLocation: " + Engine.FullLocation.LocalPath : "") + "\n\n" +
"Do you want to save changes?",
EMessageType.Question,
System.Windows.MessageBoxButton.YesNoCancel, System.Windows.MessageBoxResult.Yes);
if (Result == System.Windows.MessageBoxResult.Cancel)
{
return(false);
}
if (Result == System.Windows.MessageBoxResult.Yes)
{
if (!CloseRelatedResources(Engine))
{
return(false);
}
var Location = Engine.FullLocation;
if (Location != null)
{
var StoreResult = Engine.Store();
if (!StoreResult.IsAbsent())
{
Display.DialogMessage("Error!", "Cannot save Composition.\n\nProblem: " + StoreResult, EMessageType.Warning);
return(false);
}
}
else
{
Location = Display.DialogGetSaveFile("Save Composition",
FileDataType.FileTypeComposition.Extension,
FileDataType.FileTypeComposition.FilterForSave,
Engine.TargetComposition.TechName);
if (Location == null)
{
return(false);
}
var StoreResult = Engine.Store(Location);
if (!StoreResult.IsAbsent())
{
Display.DialogMessage("Error!", "Cannot save Composition.\n\nProblem: " + StoreResult, EMessageType.Warning);
return(false);
}
}
}
}
Engine.Stop();
// Show the new activated engine
this.WorkspaceDirector.RemoveDocument(Engine.TargetComposition);
// Finally, clears the palettes if no document remains.
Application.Current.MainWindow
.PostCall(win =>
{
if (this.WorkspaceDirector.Documents.Count < 1)
{
ProductDirector.UpdatePalettes(null);
}
}, true);
return(true);
}