/// <summary>
/// Attaches the the painter to the given target panel.
/// </summary>
/// <param name="targetPanel">The target panel.</param>
/// <exception cref="System.InvalidOperationException">Unable to attach to new SwapChainBackgroundPanel: Renderer is already attached to another one!</exception>
public void Attach(DrawingSurface targetPanel)
{
if (m_targetPanel != null)
{
throw new InvalidOperationException("Unable to attach to new SwapChainBackgroundPanel: Renderer is already attached to another one!");
}
// Set default values
m_lastRefreshTargetSize = new Size2(0, 0);
m_targetPanel = targetPanel;
// Attach to SizeChanged event (refresh view resources only after a specific time)
m_observerSizeChanged = Observable.FromEventPattern <SizeChangedEventArgs>(m_targetPanel, "SizeChanged")
.Throttle(TimeSpan.FromSeconds(0.5))
.ObserveOn(SynchronizationContext.Current)
.Subscribe((eArgs) => OnTargetPanelThrottledSizeChanged(eArgs.Sender, eArgs.EventArgs));
m_targetPanel.SizeChanged += OnTargetPanelSizeChanged;
m_targetPanel.Loaded += OnTargetPanelLoaded;
m_targetPanel.Unloaded += OnTargetPanelUnloaded;
// Hook-up native component to DrawingSurface
m_drawingInterop = new WP8DrawingSurfaceInterop(this);
m_targetPanel.SetContentProvider(m_drawingInterop);
//m_targetPanel.SetManipulationHandler(m_drawingInterop);
// Define unloading behavior
if (VisualTreeHelper.GetParent(m_targetPanel) != null)
{
m_renderLoop.RegisterRenderLoop();
}
//// Register simple mouse movement
//InitializeMouseMovement();
}
public void Detach()
{
try
{
if (m_targetPanel == null)
{
return;
}
//// Deregister simple mouse movement
//UnloadMouseMovement();
// Clear view resources
m_renderLoop.UnloadViewResources();
m_renderLoop.DeregisterRenderLoop();
// Reset interop settings
m_targetPanel.SetContentProvider(null);
m_targetPanel.SetManipulationHandler(null);
m_drawingInterop = null;
// Clear event registrations
m_targetPanel.SizeChanged -= OnTargetPanelSizeChanged;
m_targetPanel.Loaded -= OnTargetPanelLoaded;
m_targetPanel.Unloaded -= OnTargetPanelUnloaded;
//Clear created references
m_observerSizeChanged.Dispose();
m_observerSizeChanged = null;
m_targetPanel = null;
}
catch (Exception ex)
{
CommonTools.RaiseUnhandledException(
this.GetType(), this, ex,
"Detaching the FrozenSyBackgroundPanelPainter");
}
}
