/// <summary>
/// Construct a new surface.
/// </summary>
/// <param name="sIdentifier">The unique identifier for this surface. Cannot be null. If this is not unique, it will not be checked until the surface is registered with an authority.</param>
public Surface(String sIdentifier)
{
// If the identifier is not valid, throw an error.
if (sIdentifier == null || sIdentifier.Length == 0)
{
throw new Exception("Surface identifier cannot be empty.");
}
// Otherwise set the value. HOWEVER.. this is not authorised by the authority. It will be checked on registration.
this.Authority_SetIdentifier(sIdentifier);
// Load the debug for this surface.
//pDebugImageControl = new Image();
//pDebugImageControl.Source = new BitmapImage(new Uri("pack://application:,,,/UbiDisplays;component/Interface/Images/DebugImage.png"));
// Generate a key to access the projected surface.
sProjectionDisplayKey = System.Guid.NewGuid().ToString();
// A surface control.
pSurfaceContent = new SurfaceView();
pSurfaceContent.ShowDebug = true;
// Create a projected display for this surface.
pProjectionDisplay = ProjectionRenderer.AddDisplay(sProjectionDisplayKey, pSurfaceContent);//, pDebugImageControl);
pProjectionDisplay.Visible = true;
}
/// <summary>
/// Called by the authority to signal that this surface has been deleted.
/// </summary>
internal void Authority_Delete()
{
// Remove the projection display.
if (pProjectionDisplay != null)
{
pProjectionDisplay.Visible = false;
ProjectionRenderer.RemoveDisplay(pProjectionDisplay);
pProjectionDisplay = null;
}
// Remove the reference to the active display.
if (ActiveDisplay != null)
{
Authority_DetachDisplay(ActiveDisplay);
throw new Exception("Error deleting surface. Display still active.");
}
// Free any resources.
this.DeleteResources();
// Remove the debug image.
if (pSurfaceContent != null)
{
pSurfaceContent.Children.Clear();
pSurfaceContent = null;
}
//pDebugImageControl = null;
// Set the deleted flag.
bDeleted = true;
// Deletion event.
if (OnDeleted != null)
{
OnDeleted(this);
}
}
