/// <summary>
/// Initializes a new instance of the <see cref="BackgroundTask"/> class.
/// </summary>
/// <param name="theDelegate">The delegate.</param>
public BackgroundTask(Func <object> theDelegate)
{
worker = new BackgroundWorker
{
WorkerSupportsCancellation = true,
WorkerReportsProgress = true
};
context = new BackgroundContext(worker);
worker.DoWork += (s, e) => {
Log.Info("Starting background task.");
CurrentContext = context;
Starting(this, EventArgs.Empty);
e.Result = theDelegate();
e.Cancel = cancellationPending;
CurrentContext = null;
Log.Info("Completed background task.");
};
worker.ProgressChanged += (s, e) => {
ProgressChanged(this, new ProgressChangedEventArgs(e.ProgressPercentage, e.UserState));
};
worker.RunWorkerCompleted += (s, e) => {
Completed(this, new RunWorkerCompletedEventArgs(e.Error != null || e.Cancelled ? null : e.Result, e.Error, e.Cancelled));
};
}
/// <summary>
/// Initializes a new instance of the <see cref="BackgroundTask"/> class.
/// </summary>
/// <param name="theDelegate">The delegate.</param>
public BackgroundTask(Func<object> theDelegate)
{
worker = new BackgroundWorker
{
WorkerSupportsCancellation = true,
WorkerReportsProgress = true
};
context = new BackgroundContext(worker);
worker.DoWork += (s, e) =>{
Log.Info("Starting background task.");
CurrentContext = context;
Starting(this, EventArgs.Empty);
e.Result = theDelegate();
e.Cancel = cancellationPending;
CurrentContext = null;
Log.Info("Completed background task.");
};
worker.ProgressChanged += (s, e) =>{
ProgressChanged(this, new ProgressChangedEventArgs(e.ProgressPercentage, e.UserState));
};
worker.RunWorkerCompleted += (s, e) =>{
Completed(this, new RunWorkerCompletedEventArgs(e.Error != null || e.Cancelled ? null : e.Result, e.Error, e.Cancelled));
};
}
public async Task ParseAsync(XmlReader reader, IParsingContext parsingContext, IParentParsingContext parentParsingContext)
{
var context = new BackgroundContext();
await elementParser.ParseAsync(reader, parsingContext, context, Settings);
if (!string.IsNullOrWhiteSpace(context.ParsedText))
{
var state = new BackgroundState(context.ParsedText, BackgroundType.Image, BackgroundPosition.Left);
var block = parsingContext.BlockFactory.Create(
new BackgroundNode(state, null),
new ScrollNode(null)
);
parentParsingContext.AddNode(new BlockNode(block, context.When));
parsingContext.RegisterDismissNode(DismissNode);
return;
}
if (context.Nodes.Count == 0)
{
parsingContext.LogError(reader, "Nome de imagem ou elemento filho era esperado.");
return;
}
{
var block = parsingContext.BlockFactory.Create(context.Nodes);
parentParsingContext.AddNode(new BlockNode(block, context.When));
parsingContext.RegisterDismissNode(DismissNode);
}
}
public void Dispose()
{
BackgroundContext.Dispose();
if (_copyFramebufferHandle != 0)
{
GL.DeleteFramebuffer(_copyFramebufferHandle);
_copyFramebufferHandle = 0;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BackgroundTask"/> class.
/// </summary>
/// <param name="threadPool">The thread pool.</param>
/// <param name="theDelegate">The delegate to execute.</param>
public BackgroundTask(IThreadPool threadPool, Func<object> theDelegate)
{
if(threadPool == null)
throw new ArgumentNullException("threadPool");
if(theDelegate == null)
throw new ArgumentNullException("theDelegate");
_threadPool = threadPool;
_theDelegate = theDelegate;
_context = new BackgroundContext(this);
}
/// <summary>
/// Initializes a new instance of the <see cref="BackgroundTask"/> class.
/// </summary>
/// <param name="threadPool">The thread pool.</param>
/// <param name="theDelegate">The delegate to execute.</param>
public BackgroundTask(IThreadPool threadPool, Func <object> theDelegate)
{
if (threadPool == null)
{
throw new ArgumentNullException("threadPool");
}
if (theDelegate == null)
{
throw new ArgumentNullException("theDelegate");
}
_threadPool = threadPool;
_theDelegate = theDelegate;
_context = new BackgroundContext(this);
}
public void Dispose()
{
BackgroundContext.Dispose();
if (_copyFramebufferHandle != 0)
{
GL.DeleteFramebuffer(_copyFramebufferHandle);
_copyFramebufferHandle = 0;
}
if (_stagingFrameBuffer != 0)
{
GL.DeleteTextures(_stagingTextures.Length, _stagingTextures);
GL.DeleteFramebuffer(_stagingFrameBuffer);
_stagingFrameBuffer = 0;
_stagingTextures = null;
}
}
