public void TestSizeRequestWithPadding ()
{
var platform = new UnitPlatform ();
var layout = new Grid {Platform = platform, IsPlatformEnabled = true, Padding = new Thickness(20, 10, 15, 5)};
layout.Children.AddVertical (new[] {
new View {Platform = platform, IsPlatformEnabled = true},
new View {Platform = platform, IsPlatformEnabled = true},
new View {Platform = platform, IsPlatformEnabled = true}
});
var result = layout.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity).Request;
Assert.AreEqual (new Size (135, 87), result);
}
public void TestStarLayout ()
{
var platform = new UnitPlatform ();
var layout = new Grid ();
layout.Platform = platform;
var label1 = new Label {Platform = platform, IsPlatformEnabled = true};
var label2 = new Label {Platform = platform, IsPlatformEnabled = true};
var label3 = new Label {Platform = platform, IsPlatformEnabled = true};
layout.ColumnDefinitions = new ColumnDefinitionCollection {
new ColumnDefinition {Width = new GridLength (1, GridUnitType.Star)},
new ColumnDefinition {Width = new GridLength (1, GridUnitType.Star)},
new ColumnDefinition {Width = new GridLength (1, GridUnitType.Star)},
};
layout.RowDefinitions = new RowDefinitionCollection {
new RowDefinition {Height = new GridLength (1, GridUnitType.Star)},
new RowDefinition {Height = new GridLength (1, GridUnitType.Star)},
new RowDefinition {Height = new GridLength (1, GridUnitType.Star)},
};
layout.Children.Add (label1, 0, 0);
layout.Children.Add (label2, 1, 1);
layout.Children.Add (label3, 2, 2);
var request = layout.GetSizeRequest (1002, 462);
Assert.AreEqual (312, request.Request.Width);
Assert.AreEqual (72, request.Request.Height);
layout.Layout (new Rectangle (0, 0, 1002, 462));
Assert.AreEqual (1002, layout.Width);
Assert.AreEqual (462, layout.Height);
Assert.AreEqual (new Rectangle (0, 0, 330, 150), label1.Bounds);
Assert.AreEqual (new Rectangle (336, 156, 330, 150), label2.Bounds);
Assert.AreEqual (new Rectangle (672, 312, 330, 150), label3.Bounds);
}
public void TestLimitedHeightSizeRequest ()
{
var platform = new UnitPlatform ();
var layout = new Grid {Platform = platform, IsPlatformEnabled = true};
layout.Children.AddVertical (new[] {
new View {Platform = platform, IsPlatformEnabled = true},
new View {Platform = platform, IsPlatformEnabled = true},
new View {Platform = platform, IsPlatformEnabled = true}
});
var result = layout.GetSizeRequest (double.PositiveInfinity, 10).Request;
Assert.AreEqual (new Size (100, 72), result);
}
public void TestZeroSizeConstraints ()
{
var layout = new Grid {Platform = new UnitPlatform ()};
Assert.AreEqual (new Size (0, 0), layout.GetSizeRequest (0, 0).Request);
Assert.AreEqual (new Size (0, 0), layout.GetSizeRequest (0, 10).Request);
Assert.AreEqual (new Size (0, 0), layout.GetSizeRequest (10, 0).Request);
}
//https://bugzilla.xamarin.com/show_bug.cgi?id=31967
public void ChangingRowHeightViaBindingTriggersRedraw ()
{
var rowdef = new RowDefinition ();
rowdef.SetBinding (RowDefinition.HeightProperty, "Height");
var grid = new Grid {
// RowDefinitions = new RowDefinitionCollection {
// new RowDefinition { Height = GridLength.Auto },
// rowdef
// },
RowSpacing = 0,
Platform = new UnitPlatform (),
IsPlatformEnabled = true,
};
grid.RowDefinitions.Add (new RowDefinition { Height = GridLength.Auto });
grid.RowDefinitions.Add (rowdef);
var label0 = new Label { IsPlatformEnabled = true };
Grid.SetRow (label0, 0);
var label1 = new Label { IsPlatformEnabled = true };
Grid.SetRow (label1, 1);
grid.BindingContext = new {Height = 0};
grid.Children.Add (label0);
grid.Children.Add (label1);
Assert.AreEqual (new SizeRequest (new Size (100, 20), new Size (0, 20)), grid.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity));
grid.BindingContext = new {Height = 42};
Assert.AreEqual (new SizeRequest (new Size (100, 62), new Size (0, 62)), grid.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity));
}
public void WidthBoundRequestRespected ()
{
var grid = new Grid {
ColumnDefinitions = {
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) }
},
RowDefinitions = {
new RowDefinition { Height = GridLength.Auto },
new RowDefinition { Height = GridLength.Auto },
},
Platform = new UnitPlatform (GetResizableSize),
IsPlatformEnabled = true,
RowSpacing = 0,
ColumnSpacing = 0,
};
var topLabel = new Editor {IsPlatformEnabled = true};
var leftLabel = new Label {IsPlatformEnabled = true, WidthRequest = 10};
var rightLabel = new Label {IsPlatformEnabled = true, WidthRequest = 10};
grid.Children.Add (topLabel, 0, 2, 0, 1);
grid.Children.Add (leftLabel, 0, 1);
grid.Children.Add (rightLabel, 1, 1);
var unboundRequest = grid.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity);
var widthBoundRequest = grid.GetSizeRequest (50, double.PositiveInfinity);
Assert.AreEqual (new SizeRequest (new Size (20, 120), new Size (0, 120)), unboundRequest);
Assert.AreEqual (new SizeRequest (new Size (50, 60), new Size (0, 60)), widthBoundRequest);
}
public void SizeRequestForStar ()
{
var platform = new UnitPlatform ();
var grid = new Grid{
RowDefinitions = new RowDefinitionCollection {
new RowDefinition {Height = new GridLength (1, GridUnitType.Star)},
new RowDefinition {Height = GridLength.Auto},
},
ColumnDefinitions = new ColumnDefinitionCollection {
new ColumnDefinition {Width = new GridLength (1, GridUnitType.Star)},
new ColumnDefinition {Width = GridLength.Auto},
}
};
grid.Children.Add (new Label {BackgroundColor = Color.Lime, Text="Foo", Platform = platform, IsPlatformEnabled = true});
grid.Children.Add (new Label {Text = "Bar", Platform = platform, IsPlatformEnabled = true},0,1);
grid.Children.Add (new Label {Text="Baz",XAlign = TextAlignment.End, Platform = platform, IsPlatformEnabled = true},1,0);
grid.Children.Add (new Label {Text="Qux", XAlign = TextAlignment.End, Platform = platform, IsPlatformEnabled = true},1,1);
var request = grid.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity);
Assert.AreEqual (206, request.Request.Width);
Assert.AreEqual (46, request.Request.Height);
Assert.AreEqual (106, request.Minimum.Width);
Assert.AreEqual (26, request.Minimum.Height);
//
}