/// <summary>
/// Adds a new render task.
/// </summary>
/// <param name="owner">The owner. This is any object that is able to uniquely identify the render task.</param>
/// <param name="doc">The graph document to render.</param>
/// <param name="renderingAction">The rendering action. This action is called when the provided graph document should be rendered.</param>
public void AddTask(object owner, GraphDocument doc, Action <GraphDocument, object> renderingAction)
{
var task = new GraphDocumentRenderTask(this, owner, doc, renderingAction);
_tasksWaiting.TryAddLast(owner, task);
TryStartWaitingTasks();
}
/// <summary>
/// The render task calls back this function when it is finished.
/// It removes the render task from the list of currently rendering tasks. If the task was not successfully finished and
/// more trials are allowed, the render task is put back at the end of the list of waiting rendering tasks.
/// </summary>
/// <param name="rendering">The rendering task that was just finished.</param>
private void EhRenderTaskFinished(GraphDocumentRenderTask rendering)
{
_tasksRendering.TryRemove(rendering.Document, out var renderTask);
if (!renderTask.WasSuccessful && renderTask.MoreTrialsAllowed)
{
_tasksWaiting.TryAddLast(renderTask.Owner, renderTask);
}
TryStartWaitingTasks();
}