private void InitializeComponent()
{
Func<object, IEnumerable<Control>> pt = PropertyTemplate;
Content = new ScrollViewer
{
Content = new SimpleGrid
{
Styles = new Styles
{
new Style(x => x.Is<Control>())
{
Setters = new[]
{
new Setter(MarginProperty, new Thickness(2)),
}
},
},
[GridRepeater.TemplateProperty] = pt,
[!GridRepeater.ItemsProperty] = this.WhenAnyValue(x => x.ViewModel.Properties).ToBinding(),
}
};
}
public void Test_ScrollViewer_With_TextBlock()
{
using (var context = AvaloniaLocator.EnterScope())
{
RegisterServices();
ScrollViewer scrollViewer;
TextBlock textBlock;
var window = new Window()
{
Width = 800,
Height = 600,
SizeToContent = SizeToContent.WidthAndHeight,
Content = scrollViewer = new ScrollViewer
{
Width = 200,
Height = 200,
CanScrollHorizontally = true,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Content = textBlock = new TextBlock
{
Width = 400,
Height = 400,
Text = "Hello World!",
},
}
};
LayoutManager.Instance.ExecuteInitialLayoutPass(window);
Assert.Equal(new Size(800, 600), window.Bounds.Size);
Assert.Equal(new Size(200, 200), scrollViewer.Bounds.Size);
Assert.Equal(new Point(300, 200), Position(scrollViewer));
Assert.Equal(new Size(400, 400), textBlock.Bounds.Size);
var scrollBars = scrollViewer.GetTemplateChildren().OfType<ScrollBar>().ToList();
var presenters = scrollViewer.GetTemplateChildren().OfType<ScrollContentPresenter>().ToList();
Assert.Equal(2, scrollBars.Count);
Assert.Equal(1, presenters.Count);
var presenter = presenters[0];
Assert.Equal(new Size(190, 190), presenter.Bounds.Size);
var horzScroll = scrollBars.Single(x => x.Orientation == Orientation.Horizontal);
var vertScroll = scrollBars.Single(x => x.Orientation == Orientation.Vertical);
Assert.True(horzScroll.IsVisible);
Assert.True(vertScroll.IsVisible);
Assert.Equal(new Size(190, 10), horzScroll.Bounds.Size);
Assert.Equal(new Size(10, 190), vertScroll.Bounds.Size);
Assert.Equal(new Point(0, 190), Position(horzScroll));
Assert.Equal(new Point(190, 0), Position(vertScroll));
}
}
