public void Invalidating_Child_Should_Remeasure_Parent()
{
var layoutManager = new LayoutManager();
using (AvaloniaLocator.EnterScope())
{
AvaloniaLocator.CurrentMutable.Bind<ILayoutManager>().ToConstant(layoutManager);
Border border;
StackPanel panel;
var root = new TestLayoutRoot
{
Child = panel = new StackPanel
{
Children = new Controls.Controls
{
(border = new Border())
}
}
};
layoutManager.ExecuteInitialLayoutPass(root);
Assert.Equal(new Size(0, 0), root.DesiredSize);
border.Width = 100;
border.Height = 100;
layoutManager.ExecuteLayoutPass();
Assert.Equal(new Size(100, 100), panel.DesiredSize);
}
}
public void Removing_From_Parent_Should_Invalidate_Measure_Of_Control_And_Descendents()
{
var panel = new StackPanel();
var child2 = new Border();
var child1 = new Border { Child = child2 };
panel.Children.Add(child1);
panel.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
Assert.True(child1.IsMeasureValid);
Assert.True(child2.IsMeasureValid);
panel.Children.Remove(child1);
Assert.False(child1.IsMeasureValid);
Assert.False(child2.IsMeasureValid);
}
public void Tapped_Should_Be_Raised_Even_When_PointerPressed_Handled()
{
Border border = new Border();
var decorator = new Decorator
{
Child = border
};
var result = new List<string>();
border.AddHandler(Border.PointerPressedEvent, (s, e) => e.Handled = true);
decorator.AddHandler(Gestures.TappedEvent, (s, e) => result.Add("dt"));
border.AddHandler(Gestures.TappedEvent, (s, e) => result.Add("bt"));
border.RaiseEvent(new PointerPressedEventArgs());
border.RaiseEvent(new PointerReleasedEventArgs());
Assert.Equal(new[] { "bt", "dt" }, result);
}
public void Invalidating_Child_Should_Not_Invalidate_Parent()
{
var panel = new StackPanel();
var child = new Border();
panel.Children.Add(child);
panel.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
Assert.Equal(new Size(0, 0), panel.DesiredSize);
child.Width = 100;
child.Height = 100;
Assert.True(panel.IsMeasureValid);
Assert.False(child.IsMeasureValid);
panel.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
Assert.Equal(new Size(0, 0), panel.DesiredSize);
}
public void FindStyleResource_Should_Find_Correct_Resource()
{
Border target;
var tree = new Decorator
{
Styles = new Styles
{
new Style
{
Resources = new Dictionary<string, object>
{
{ "Foo", "foo resource" },
{ "Bar", "overridden" },
}
}
},
Child = target = new Border
{
Styles = new Styles
{
new Style
{
Resources = new Dictionary<string, object>
{
{ "Bar", "again overridden" },
}
},
new Style
{
Resources = new Dictionary<string, object>
{
{ "Bar", "bar resource" },
}
}
}
}
};
Assert.Equal("foo resource", target.FindStyleResource("Foo"));
Assert.Equal("bar resource", target.FindStyleResource("Bar"));
}
public void GetVisualsAt_Should_Find_Control_Translated_Outside_Parent_Bounds()
{
using (UnitTestApplication.Start(new TestServices(renderInterface: new MockRenderInterface())))
{
Border target;
var container = new Panel
{
Width = 200,
Height = 200,
ClipToBounds = false,
Children = new Controls.Controls
{
new Border
{
Width = 100,
Height = 100,
ZIndex = 1,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
Child = target = new Border
{
Width = 50,
Height = 50,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
RenderTransform = new TranslateTransform(110, 110),
}
},
}
};
container.Measure(Size.Infinity);
container.Arrange(new Rect(container.DesiredSize));
var context = new DrawingContext(Mock.Of<IDrawingContextImpl>());
context.Render(container);
var result = container.GetVisualsAt(new Point(120, 120));
Assert.Equal(new IVisual[] { target, container }, result);
}
}
public void FindStyleResource_Should_Return_UnsetValue_For_Not_Found()
{
Border target;
var tree = target = new Border
{
Styles = new Styles
{
new Style
{
Resources = new Dictionary<string, object>
{
{ "Foo", "foo" },
}
},
}
};
Assert.Equal(AvaloniaProperty.UnsetValue, target.FindStyleResource("Baz"));
}
public void Grandchild_Size_Changed()
{
using (var context = AvaloniaLocator.EnterScope())
{
RegisterServices();
Border border;
TextBlock textBlock;
var window = new Window()
{
SizeToContent = SizeToContent.WidthAndHeight,
Content = border = new Border
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Child = new Border
{
Child = textBlock = new TextBlock
{
Width = 400,
Height = 400,
Text = "Hello World!",
},
}
}
};
LayoutManager.Instance.ExecuteInitialLayoutPass(window);
Assert.Equal(new Size(400, 400), border.Bounds.Size);
textBlock.Width = 200;
LayoutManager.Instance.ExecuteLayoutPass();
Assert.Equal(new Size(200, 400), border.Bounds.Size);
}
}
public void DoubleTapped_Should_Follow_Pointer_Pressed_Released_Pressed()
{
Border border = new Border();
var decorator = new Decorator
{
Child = border
};
var result = new List<string>();
decorator.AddHandler(Border.PointerPressedEvent, (s, e) => result.Add("dp"));
decorator.AddHandler(Border.PointerReleasedEvent, (s, e) => result.Add("dr"));
decorator.AddHandler(Gestures.TappedEvent, (s, e) => result.Add("dt"));
decorator.AddHandler(Gestures.DoubleTappedEvent, (s, e) => result.Add("ddt"));
border.AddHandler(Border.PointerPressedEvent, (s, e) => result.Add("bp"));
border.AddHandler(Border.PointerReleasedEvent, (s, e) => result.Add("br"));
border.AddHandler(Gestures.TappedEvent, (s, e) => result.Add("bt"));
border.AddHandler(Gestures.DoubleTappedEvent, (s, e) => result.Add("bdt"));
border.RaiseEvent(new PointerPressedEventArgs());
border.RaiseEvent(new PointerReleasedEventArgs());
border.RaiseEvent(new PointerPressedEventArgs { ClickCount = 2 });
Assert.Equal(new[] { "bp", "dp", "br", "dr", "bt", "dt", "bp", "dp", "bdt", "ddt" }, result);
}
private static TabItem AnimationsTab()
{
Border border1;
Border border2;
RotateTransform rotate;
Button button1;
var result = new TabItem
{
Header = "Animations",
Content = new StackPanel
{
Orientation = Orientation.Vertical,
Gap = 4,
Margin = new Thickness(10),
Children = new Controls
{
new TextBlock
{
Text = "Animations",
FontWeight = FontWeight.Medium,
FontSize = 20,
Foreground = Brush.Parse("#212121"),
},
new TextBlock
{
Text = "A few animations showcased below",
FontSize = 13,
Foreground = Brush.Parse("#727272"),
Margin = new Thickness(0, 0, 0, 10)
},
(button1 = new Button
{
Content = "Animate",
Width = 120,
[Grid.ColumnProperty] = 1,
[Grid.RowProperty] = 1,
}),
new Canvas
{
ClipToBounds = false,
Children = new Controls
{
(border1 = new Border
{
Width = 100,
Height = 100,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Background = Brushes.Crimson,
RenderTransform = new RotateTransform(),
Child = new Grid
{
Children = new Controls
{
new Ellipse()
{
Width = 100,
Height = 100,
Fill =
new RadialGradientBrush()
{
GradientStops =
{
new GradientStop(Colors.Blue, 0),
new GradientStop(Colors.Green, 1)
},
Radius = 75
}
},
new Avalonia.Controls.Shapes.Path
{
Data =
StreamGeometry.Parse(
"F1 M 16.6309,18.6563C 17.1309,8.15625 29.8809,14.1563 29.8809,14.1563C 30.8809,11.1563 34.1308,11.4063 34.1308,11.4063C 33.5,12 34.6309,13.1563 34.6309,13.1563C 32.1309,13.1562 31.1309,14.9062 31.1309,14.9062C 41.1309,23.9062 32.6309,27.9063 32.6309,27.9062C 24.6309,24.9063 21.1309,22.1562 16.6309,18.6563 Z M 16.6309,19.9063C 21.6309,24.1563 25.1309,26.1562 31.6309,28.6562C 31.6309,28.6562 26.3809,39.1562 18.3809,36.1563C 18.3809,36.1563 18,38 16.3809,36.9063C 15,36 16.3809,34.9063 16.3809,34.9063C 16.3809,34.9063 10.1309,30.9062 16.6309,19.9063 Z"),
Fill =
new LinearGradientBrush()
{
GradientStops =
{
new GradientStop(Colors.Green, 0),
new GradientStop(Colors.LightSeaGreen, 1)
}
},
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
RenderTransform = new MatrixTransform(Matrix.CreateScale(2, 2))
}
}
},
[Canvas.LeftProperty] = 100,
[Canvas.TopProperty] = 100,
}),
(border2 = new Border
{
Width = 100,
Height = 100,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Background = Brushes.Coral,
Child = new Image
{
Source = new Bitmap(GetImage("github_icon.png")),
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
},
RenderTransform = (rotate = new RotateTransform
{
PropertyTransitions = new PropertyTransitions
{
RotateTransform.AngleProperty.Transition(500),
}
}),
PropertyTransitions = new PropertyTransitions
{
Layoutable.WidthProperty.Transition(300),
Layoutable.HeightProperty.Transition(1000),
},
[Canvas.LeftProperty] = 400,
[Canvas.TopProperty] = 100,
}),
}
}
},
},
};
button1.Click += (s, e) =>
{
if (border2.Width == 100)
{
border2.Width = border2.Height = 400;
rotate.Angle = 180;
}
else
{
border2.Width = border2.Height = 100;
rotate.Angle = 0;
}
};
var start = Animate.Stopwatch.Elapsed;
var degrees = Animate.Timer
.Select(x =>
{
var elapsed = (x - start).TotalSeconds;
var cycles = elapsed / 4;
var progress = cycles % 1;
return 360.0 * progress;
});
border1.RenderTransform.Bind(
RotateTransform.AngleProperty,
degrees,
BindingPriority.Animation);
return result;
}
public void GetVisualsAt_Should_Not_Find_Control_Outside_Scroll_Viewport()
{
using (UnitTestApplication.Start(new TestServices(renderInterface: new MockRenderInterface())))
{
Border target;
Border item1;
Border item2;
ScrollContentPresenter scroll;
var container = new Panel
{
Width = 100,
Height = 200,
Children = new Controls.Controls
{
(target = new Border()
{
Width = 100,
Height = 100
}),
new Border()
{
Width = 100,
Height = 100,
Margin = new Thickness(0, 100, 0, 0),
Child = scroll = new ScrollContentPresenter()
{
Content = new StackPanel()
{
Children = new Controls.Controls
{
(item1 = new Border()
{
Width = 100,
Height = 100,
}),
(item2 = new Border()
{
Width = 100,
Height = 100,
}),
}
}
}
}
}
};
scroll.UpdateChild();
container.Measure(Size.Infinity);
container.Arrange(new Rect(container.DesiredSize));
var context = new DrawingContext(Mock.Of<IDrawingContextImpl>());
context.Render(container);
var result = container.GetVisualsAt(new Point(50, 150)).First();
Assert.Equal(item1, result);
result = container.GetVisualsAt(new Point(50, 50)).First();
Assert.Equal(target, result);
scroll.Offset = new Vector(0, 100);
//we don't have setup LayoutManager so we will make it manually
scroll.Parent.InvalidateArrange();
container.InvalidateArrange();
container.Arrange(new Rect(container.DesiredSize));
context.Render(container);
result = container.GetVisualsAt(new Point(50, 150)).First();
Assert.Equal(item2, result);
result = container.GetVisualsAt(new Point(50, 50)).First();
Assert.NotEqual(item1, result);
Assert.Equal(target, result);
}
}
public void GetVisualsAt_Should_Not_Find_Control_Outside_Parent_Bounds_When_Clipped()
{
using (UnitTestApplication.Start(new TestServices(renderInterface: new MockRenderInterface())))
{
Border target;
var container = new Panel
{
Width = 100,
Height = 200,
Children = new Controls.Controls
{
new Panel()
{
Width = 100,
Height = 100,
Margin = new Thickness(0, 100, 0, 0),
ClipToBounds = true,
Children = new Controls.Controls
{
(target = new Border()
{
Width = 100,
Height = 100,
Margin = new Thickness(0, -100, 0, 0)
})
}
}
}
};
container.Measure(Size.Infinity);
container.Arrange(new Rect(container.DesiredSize));
var context = new DrawingContext(Mock.Of<IDrawingContextImpl>());
context.Render(container);
var result = container.GetVisualsAt(new Point(50, 50));
Assert.Equal(new[] { container }, result);
}
}
/// <inheritdoc/>
protected override void OnTemplateApplied(TemplateAppliedEventArgs e)
{
_indicator = e.NameScope.Get<Border>("PART_Indicator");
UpdateIndicator(Bounds.Size);
}
public void Style_Should_Detach_When_Removed_From_Logical_Tree()
{
Border border;
var style = new Style(x => x.OfType<Border>())
{
Setters = new[]
{
new Setter(Border.BorderThicknessProperty, 4),
}
};
var root = new TestRoot
{
Child = border = new Border(),
};
style.Attach(border, null);
Assert.Equal(4, border.BorderThickness);
root.Child = null;
Assert.Equal(0, border.BorderThickness);
}