public void LayoutUpdated ()
{
bool layoutUpdated = false;
bool loaded = false;
ConcreteFrameworkElement element = new ConcreteFrameworkElement ();
EventHandler handler = (o, e) => { layoutUpdated = true; };
element.LayoutUpdated += handler;
element.Loaded += (o, e) => { loaded = true; };
Enqueue (() => TestPanel.Children.Add (element));
EnqueueConditional (() => loaded );
EnqueueConditional (() => layoutUpdated);
Enqueue (() => { layoutUpdated = false; element.InvalidateArrange (); });
EnqueueConditional (() => layoutUpdated);
Enqueue (() => { layoutUpdated = false; element.InvalidateMeasure (); });
EnqueueConditional (() => layoutUpdated);
Enqueue (() => { element.LayoutUpdated -= handler; });
EnqueueTestComplete ();
}
public void InvalidateMeasureRaisesLayoutUpdated()
{
int count = 0;
var c = new ConcreteFrameworkElement ();
c.LayoutUpdated += (o, e) => count++;
CreateAsyncTest (c,
() => count = 0,
() => c.InvalidateMeasure(),
() => Assert.AreEqual(1, count, "#1"),
() => c.InvalidateMeasure(),
() => Assert.AreEqual(2, count, "#2")
);
}
public void ParentlessMeasureTest ()
{
var fe = new ConcreteFrameworkElement ();
fe.Measure (new Size (100,100));
Assert.AreEqual (new Size (0, 0), fe.DesiredSize, "deisred");
fe.Width = 10;
fe.Height = 10;
Assert.AreEqual (new Size (10,10), new Size (fe.ActualWidth, fe.ActualHeight), "fe actual");
fe.InvalidateMeasure ();
fe.Measure (new Size (100,100));
Assert.AreEqual (new Size (0, 0), fe.DesiredSize, "deisred");
}
public void InvalidateMeasure ()
{
bool loaded = false;
ConcreteFrameworkElement c = new ConcreteFrameworkElement ();
c.Loaded += delegate { loaded = true; };
TestPanel.Children.Add (c);
EnqueueConditional (() => loaded, "#1");
EnqueueConditional (() => c.Measured, "#2");
EnqueueConditional (() => c.Arranged, "#3");
Enqueue (() => loaded = c.Arranged = c.Measured = c.Templated = false);
Enqueue (() => c.InvalidateMeasure ());
EnqueueConditional (() => c.Measured, "#4");
EnqueueConditional (() => c.Arranged, "#5");
EnqueueTestComplete ();
}
public void MeasureOverride2 ()
{
ConcreteFrameworkElement c = new ConcreteFrameworkElement ();
c.Measure (new Size (0, 100));
Assert.IsFalse (c.Measured, "#1");
c.InvalidateMeasure ();
c.Measure (new Size (0, 100));
Assert.IsFalse (c.Measured, "#2");
}
