/// <summary>
/// Deregisters this scene from ApplicationMessaging logic.
/// </summary>
public void DeregisterMessaging()
{
if (this.CountViews > 0)
{
throw new SeeingSharpGraphicsException("Unable to deregister messaging as long this Scene is associated to a view!");
}
if (m_syncContext != null)
{
SynchronizationContext syncContext = m_syncContext;
SeeingSharpMessenger Messenger = m_messenger;
m_syncContext = null;
Messenger.DiscardGlobalSynchronization();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Scene" /> class.
/// </summary>
/// <param name="name">The global name of this scene.</param>
/// <param name="registerOnMessenger">
/// Do register this scene for application messaging?
/// If true, then the caller has to ensure that the name is only used once
/// across the currently executed application.
/// </param>
public Scene(
string name = "",
bool registerOnMessenger = false)
{
if (string.IsNullOrEmpty(name))
{
name = DEFAULT_SCENE_NAME;
}
this.Name = name;
m_perFrameData = new CBPerFrame();
m_transformMode2D = Graphics2DTransformMode.Custom;
m_customTransform2D = Matrix3x2.Identity;
m_virtualScreenSize2D = new Size2F();
m_sceneLayers = new List <SceneLayer>();
m_sceneLayers.Add(new SceneLayer(DEFAULT_LAYER_NAME, this));
m_sceneLayersPublic = new ReadOnlyCollection <SceneLayer>(m_sceneLayers);
m_drawing2DLayers = new List <Custom2DDrawingLayer>();
m_sceneComponents = new SceneComponentFlyweight(this);
m_asyncInvokesBeforeUpdate = new ThreadSaveQueue <Action>();
m_asyncInvokesUpdateBesideRendering = new ThreadSaveQueue <Action>();
m_registeredResourceDicts = new IndexBasedDynamicCollection <ResourceDictionary>();
m_registeredViews = new IndexBasedDynamicCollection <ViewInformation>();
m_renderParameters = new IndexBasedDynamicCollection <SceneRenderParameters>();
this.CachedUpdateState = new SceneRelatedUpdateState(this);
// Try to initialize this scene object
InitializeResourceDictionaries(false);
// Register the scene for ApplicationMessaging
if (registerOnMessenger)
{
m_syncContext = new SceneSynchronizationContext(this);
m_messenger = new SeeingSharpMessenger();
m_messenger.ApplyForGlobalSynchronization(
SeeingSharpMessageThreadingBehavior.EnsureMainSyncContextOnSyncCalls,
this.Name,
m_syncContext);
}
}
