object UpdateLayoutTest(object obj)
{
MFTestResults tResult = MFTestResults.Pass;
_panel.InvalidateArrange();
_panel.InvalidateMeasure();
_panel.UpdateLayout();
if (!_panel.IsMeasureValid || !_panel.IsArrangeValid)
{
tResult = MFTestResults.Fail;
}
Text t1 = new Text(_font, "Text 1");
t1.ForeColor = Colors.Red;
Text t2 = new Text(_font, "Text 2");
Rectangle r = new Rectangle();
r.Width = rWidth / 2;
r.Height = rHeight / 2;
r.Fill = new SolidColorBrush(Colors.Blue);
Panel childPanel = new Panel();
childPanel.Children.Add(t1);
_panel.Children.Add(childPanel);
_panel.Children.Add(t2);
_panel.Children.Add(r);
UIElement[] elts = new UIElement[] { childPanel, t2, r };
foreach (UIElement elt in elts)
{
elt.InvalidateArrange();
elt.InvalidateMeasure();
_panel.UpdateLayout();
if (!elt.IsArrangeValid || !elt.IsMeasureValid)
{
Log.Comment("Failure: Updating a child UIElement type '" +
elt.ToString() + "' and verifying");
tResult = MFTestResults.Fail;
}
}
t1.InvalidateArrange();
t1.InvalidateMeasure();
_panel.UpdateLayout();
if (!t1.IsArrangeValid || !t1.IsMeasureValid)
{
Log.Comment("Failure: Updating child of child panel and verifying");
tResult = MFTestResults.Fail;
}
childPanel.Children.Remove(t1);
t1.InvalidateArrange();
t1.InvalidateMeasure();
_panel.UpdateLayout();
if (t1.IsArrangeValid || t1.IsMeasureValid)
{
Log.Comment("Failure: Updating removed UIElement shouldn't validate");
tResult = MFTestResults.Fail;
}
return tResult;
}
