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Avalonia/tests/Avalonia.Controls.UnitTests/GridTests.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia.UnitTests;
using Xunit;
using Xunit.Abstractions;
namespace Avalonia.Controls.UnitTests
{
public class GridTests
{
private readonly ITestOutputHelper output;
public GridTests(ITestOutputHelper output)
{
this.output = output;
}
private Grid CreateGrid(params (string name, GridLength width)[] columns)
{
return CreateGrid(columns.Select(c =>
(c.name, c.width, ColumnDefinition.MinWidthProperty.GetDefaultValue(typeof(ColumnDefinition)))).ToArray());
}
private Grid CreateGrid(params (string name, GridLength width, double minWidth)[] columns)
{
return CreateGrid(columns.Select(c =>
(c.name, c.width, c.minWidth, ColumnDefinition.MaxWidthProperty.GetDefaultValue(typeof(ColumnDefinition)))).ToArray());
}
private Grid CreateGrid(params (string name, GridLength width, double minWidth, double maxWidth)[] columns)
{
var grid = new Grid();
foreach (var k in columns.Select(c => new ColumnDefinition
{
SharedSizeGroup = c.name,
Width = c.width,
MinWidth = c.minWidth,
MaxWidth = c.maxWidth
}))
grid.ColumnDefinitions.Add(k);
return grid;
}
private Control AddSizer(Grid grid, int column, double size = 30)
{
var ctrl = new Control { MinWidth = size, MinHeight = size };
ctrl.SetValue(Grid.ColumnProperty, column);
grid.Children.Add(ctrl);
output.WriteLine($"[AddSizer] Column: {column} MinWidth: {size} MinHeight: {size}");
return ctrl;
}
private void PrintColumnDefinitions(Grid grid)
{
output.WriteLine($"[Grid] ActualWidth: {grid.Bounds.Width} ActualHeight: {grid.Bounds.Width}");
output.WriteLine($"[ColumnDefinitions]");
for (int i = 0; i < grid.ColumnDefinitions.Count; i++)
{
var cd = grid.ColumnDefinitions[i];
output.WriteLine($"[{i}] ActualWidth: {cd.ActualWidth} SharedSizeGroup: {cd.SharedSizeGroup}");
}
}
[Fact]
public void Calculates_Colspan_Correctly()
{
var target = new Grid
{
ColumnDefinitions = new ColumnDefinitions
{
new ColumnDefinition(GridLength.Auto),
new ColumnDefinition(new GridLength(4, GridUnitType.Pixel)),
new ColumnDefinition(GridLength.Auto),
},
RowDefinitions = new RowDefinitions
{
new RowDefinition(GridLength.Auto),
new RowDefinition(GridLength.Auto),
},
Children =
{
new Border
{
Width = 100,
Height = 25,
[Grid.ColumnSpanProperty] = 3,
},
new Border
{
Width = 150,
Height = 25,
[Grid.RowProperty] = 1,
},
new Border
{
Width = 50,
Height = 25,
[Grid.RowProperty] = 1,
[Grid.ColumnProperty] = 2,
}
},
};
target.Measure(Size.Infinity);
// Issue #25 only appears after a second measure
target.InvalidateMeasure();
target.Measure(Size.Infinity);
target.Arrange(new Rect(target.DesiredSize));
Assert.Equal(new Size(204, 50), target.Bounds.Size);
Assert.Equal(150d, target.ColumnDefinitions[0].ActualWidth);
Assert.Equal(4d, target.ColumnDefinitions[1].ActualWidth);
Assert.Equal(50d, target.ColumnDefinitions[2].ActualWidth);
Assert.Equal(new Rect(52, 0, 100, 25), target.Children[0].Bounds);
Assert.Equal(new Rect(0, 25, 150, 25), target.Children[1].Bounds);
Assert.Equal(new Rect(154, 25, 50, 25), target.Children[2].Bounds);
}
[Fact]
public void Layout_EmptyColumnRow_LayoutLikeANormalPanel()
{
// Arrange & Action
var grid = GridMock.New(arrange: new Size(600, 200));
// Assert
GridAssert.ChildrenWidth(grid, 600);
GridAssert.ChildrenHeight(grid, 200);
}
[Fact]
public void Layout_PixelRowColumn_BoundsCorrect()
{
// Arrange & Action
var rowGrid = GridMock.New(new RowDefinitions("100,200,300"));
var columnGrid = GridMock.New(new ColumnDefinitions("50,100,150"));
// Assert
GridAssert.ChildrenHeight(rowGrid, 100, 200, 300);
GridAssert.ChildrenWidth(columnGrid, 50, 100, 150);
}
[Fact]
public void Layout_StarRowColumn_BoundsCorrect()
{
// Arrange & Action
var rowGrid = GridMock.New(new RowDefinitions("1*,2*,3*"), 600);
var columnGrid = GridMock.New(new ColumnDefinitions("*,*,2*"), 600);
// Assert
GridAssert.ChildrenHeight(rowGrid, 100, 200, 300);
GridAssert.ChildrenWidth(columnGrid, 150, 150, 300);
}
[Fact]
public void Layout_MixPixelStarRowColumn_BoundsCorrect()
{
// Arrange & Action
var rowGrid = GridMock.New(new RowDefinitions("1*,2*,150"), 600);
var columnGrid = GridMock.New(new ColumnDefinitions("1*,2*,150"), 600);
// Assert
GridAssert.ChildrenHeight(rowGrid, 150, 300, 150);
GridAssert.ChildrenWidth(columnGrid, 150, 300, 150);
}
[Fact]
public void Layout_StarRowColumnWithMinLength_BoundsCorrect()
{
// Arrange & Action
var rowGrid = GridMock.New(new RowDefinitions
{
new RowDefinition(1, GridUnitType.Star) { MinHeight = 200 },
new RowDefinition(1, GridUnitType.Star),
new RowDefinition(1, GridUnitType.Star),
}, 300);
var columnGrid = GridMock.New(new ColumnDefinitions
{
new ColumnDefinition(1, GridUnitType.Star) { MinWidth = 200 },
new ColumnDefinition(1, GridUnitType.Star),
new ColumnDefinition(1, GridUnitType.Star),
}, 300);
// Assert
GridAssert.ChildrenHeight(rowGrid, 200, 50, 50);
GridAssert.ChildrenWidth(columnGrid, 200, 50, 50);
}
[Fact]
public void Layout_StarRowColumnWithMaxLength_BoundsCorrect()
{
// Arrange & Action
var rowGrid = GridMock.New(new RowDefinitions
{
new RowDefinition(1, GridUnitType.Star) { MaxHeight = 200 },
new RowDefinition(1, GridUnitType.Star),
new RowDefinition(1, GridUnitType.Star),
}, 800);
var columnGrid = GridMock.New(new ColumnDefinitions
{
new ColumnDefinition(1, GridUnitType.Star) { MaxWidth = 200 },
new ColumnDefinition(1, GridUnitType.Star),
new ColumnDefinition(1, GridUnitType.Star),
}, 800);
// Assert
GridAssert.ChildrenHeight(rowGrid, 200, 300, 300);
GridAssert.ChildrenWidth(columnGrid, 200, 300, 300);
}
[Fact]
public void Changing_Child_Column_Invalidates_Measure()
{
Border child;
var target = new Grid
{
ColumnDefinitions = new ColumnDefinitions("*,*"),
Children =
{
(child = new Border
{
[Grid.ColumnProperty] = 0,
}),
}
};
target.Measure(Size.Infinity);
target.Arrange(new Rect(target.DesiredSize));
Assert.True(target.IsMeasureValid);
Grid.SetColumn(child, 1);
Assert.False(target.IsMeasureValid);
}
[Fact]
public void Grid_GridLength_Same_Size_Pixel_0()
{
var grid = CreateGrid(
(null, new GridLength()),
(null, new GridLength()),
(null, new GridLength()),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, false);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == null), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void Grid_GridLength_Same_Size_Pixel_50()
{
var grid = CreateGrid(
(null, new GridLength(50)),
(null, new GridLength(50)),
(null, new GridLength(50)),
(null, new GridLength(50)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, false);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == null), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void Grid_GridLength_Same_Size_Auto()
{
var grid = CreateGrid(
(null, new GridLength(0, GridUnitType.Auto)),
(null, new GridLength(0, GridUnitType.Auto)),
(null, new GridLength(0, GridUnitType.Auto)),
(null, new GridLength(0, GridUnitType.Auto)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, false);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == null), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void Grid_GridLength_Same_Size_Star()
{
var grid = CreateGrid(
(null, new GridLength(1, GridUnitType.Star)),
(null, new GridLength(1, GridUnitType.Star)),
(null, new GridLength(1, GridUnitType.Star)),
(null, new GridLength(1, GridUnitType.Star)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, false);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == null), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0()
{
var grid = CreateGrid(
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50()
{
var grid = CreateGrid(
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto()
{
var grid = CreateGrid(
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star()
{
var grid = CreateGrid(
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star))); // Star sizing is treated as Auto, 1 is ignored
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_First_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_First_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_First_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_First_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star))); // Star sizing is treated as Auto, 1 is ignored
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_Last_Column_0()
{
var grid = CreateGrid(
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_Last_Column_0()
{
var grid = CreateGrid(
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_Last_Column_0()
{
var grid = CreateGrid(
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_Last_Column_0()
{
var grid = CreateGrid(
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_First_And_Last_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
("A", new GridLength()),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_First_And_Last_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_First_And_Last_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_First_And_Last_Column_0()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength()),
("B", new GridLength()),
("B", new GridLength()),
("A", new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(25)),
("B", new GridLength(75)),
("B", new GridLength(75)),
("A", new GridLength(25)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star))); // Star sizing is treated as Auto, 1 is ignored
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_First_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength()),
("B", new GridLength()),
("B", new GridLength()),
("A", new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_First_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(25)),
("B", new GridLength(75)),
("B", new GridLength(75)),
("A", new GridLength(25)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_First_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_First_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star))); // Star sizing is treated as Auto, 1 is ignored
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength()),
("B", new GridLength()),
("B", new GridLength()),
("A", new GridLength()),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(25)),
("B", new GridLength(75)),
("B", new GridLength(75)),
("A", new GridLength(25)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_0_First_And_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength()),
("B", new GridLength()),
("B", new GridLength()),
("A", new GridLength()),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Pixel_50_First_And_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(25)),
("B", new GridLength(75)),
("B", new GridLength(75)),
("A", new GridLength(25)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Auto_First_And_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("B", new GridLength(0, GridUnitType.Auto)),
("A", new GridLength(0, GridUnitType.Auto)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void SharedSize_Grid_GridLength_Same_Size_Star_First_And_Last_Column_0_Two_Groups()
{
var grid = CreateGrid(
(null, new GridLength()),
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("B", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
("A", new GridLength(1, GridUnitType.Star)), // Star sizing is treated as Auto, 1 is ignored
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void Size_Propagation_Is_Constrained_To_Innermost_Scope()
{
var grids = new[] { CreateGrid(("A", new GridLength())), CreateGrid(("A", new GridLength(30)), (null, new GridLength())) };
var innerScope = new Grid();
foreach (var grid in grids)
innerScope.Children.Add(grid);
innerScope.SetValue(Grid.IsSharedSizeScopeProperty, true);
var outerGrid = CreateGrid(("A", new GridLength(0)));
var outerScope = new Grid();
outerScope.Children.Add(outerGrid);
outerScope.Children.Add(innerScope);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(outerScope);
root.Measure(new Size(50, 50));
root.Arrange(new Rect(new Point(), new Point(50, 50)));
Assert.Equal(0, outerGrid.ColumnDefinitions[0].ActualWidth);
}
[Fact]
public void Size_Group_Changes_Are_Tracked()
{
var grids = new[] {
CreateGrid((null, new GridLength(0, GridUnitType.Auto)), (null, new GridLength())),
CreateGrid(("A", new GridLength(30)), (null, new GridLength())) };
var scope = new Grid();
foreach (var xgrids in grids)
scope.Children.Add(xgrids);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
root.Measure(new Size(50, 50));
root.Arrange(new Rect(new Point(), new Point(50, 50)));
PrintColumnDefinitions(grids[0]);
Assert.Equal(0, grids[0].ColumnDefinitions[0].ActualWidth);
grids[0].ColumnDefinitions[0].SharedSizeGroup = "A";
root.Measure(new Size(51, 51));
root.Arrange(new Rect(new Point(), new Point(51, 51)));
PrintColumnDefinitions(grids[0]);
Assert.Equal(30, grids[0].ColumnDefinitions[0].ActualWidth);
grids[0].ColumnDefinitions[0].SharedSizeGroup = null;
root.Measure(new Size(52, 52));
root.Arrange(new Rect(new Point(), new Point(52, 52)));
PrintColumnDefinitions(grids[0]);
Assert.Equal(0, grids[0].ColumnDefinitions[0].ActualWidth);
}
[Fact]
public void Size_Group_Definition_Resizes_Are_Tracked()
{
var grids = new[] {
CreateGrid(("A", new GridLength(5, GridUnitType.Pixel)), (null, new GridLength())),
CreateGrid(("A", new GridLength(5, GridUnitType.Pixel)), (null, new GridLength())) };
var scope = new Grid();
foreach (var xgrids in grids)
scope.Children.Add(xgrids);
var rootGrid = new Grid();
rootGrid.UseLayoutRounding = false;
rootGrid.SetValue(Grid.IsSharedSizeScopeProperty, true);
rootGrid.Children.Add(scope);
var root = new TestRoot(rootGrid)
{
Width = 50,
Height = 50,
};
root.LayoutManager.ExecuteInitialLayoutPass();
PrintColumnDefinitions(grids[0]);
Assert.Equal(5, grids[0].ColumnDefinitions[0].ActualWidth);
Assert.Equal(5, grids[1].ColumnDefinitions[0].ActualWidth);
grids[0].ColumnDefinitions[0].Width = new GridLength(10, GridUnitType.Pixel);
foreach (Grid grid in grids)
{
grid.Measure(new Size(50, 50));
grid.Arrange(new Rect(new Point(), new Point(50, 50)));
}
PrintColumnDefinitions(grids[0]);
Assert.Equal(10, grids[0].ColumnDefinitions[0].ActualWidth);
Assert.Equal(10, grids[1].ColumnDefinitions[0].ActualWidth);
}
[Fact]
public void Collection_Changes_Are_Tracked()
{
var grid = CreateGrid(
("A", new GridLength(20)),
("A", new GridLength(30)),
("A", new GridLength(40)),
(null, new GridLength()));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(40, cd.ActualWidth));
grid.ColumnDefinitions.RemoveAt(2);
// NOTE: THIS IS BROKEN IN WPF
// grid.Measure(new Size(200, 200));
// grid.Arrange(new Rect(new Point(), new Point(200, 200)));
// PrintColumnDefinitions(grid);
// Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(30, cd.ActualWidth));
grid.ColumnDefinitions.Insert(1, new ColumnDefinition { Width = new GridLength(30), SharedSizeGroup = "A" });
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(30, cd.ActualWidth));
grid.ColumnDefinitions[1] = new ColumnDefinition { Width = new GridLength(10), SharedSizeGroup = "A" };
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(30, cd.ActualWidth));
grid.ColumnDefinitions[1] = new ColumnDefinition { Width = new GridLength(50), SharedSizeGroup = "A" };
// NOTE: THIS IS BROKEN IN WPF
// grid.Measure(new Size(200, 200));
// grid.Arrange(new Rect(new Point(), new Point(200, 200)));
// PrintColumnDefinitions(grid);
// Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void Size_Priorities_Are_Maintained()
{
var sizers = new List<Control>();
var grid = CreateGrid(
("A", new GridLength(20)),
("A", new GridLength(20, GridUnitType.Auto)),
("A", new GridLength(1, GridUnitType.Star)),
("A", new GridLength(1, GridUnitType.Star)),
(null, new GridLength()));
for (int i = 0; i < 3; i++)
sizers.Add(AddSizer(grid, i, 6 + i * 6));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(100, 100));
grid.Arrange(new Rect(new Point(), new Point(100, 100)));
PrintColumnDefinitions(grid);
// all in group are equal to the first fixed column
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(20, cd.ActualWidth));
grid.ColumnDefinitions[0].SharedSizeGroup = null;
grid.Measure(new Size(100, 100));
grid.Arrange(new Rect(new Point(), new Point(100, 100)));
PrintColumnDefinitions(grid);
// NOTE: THIS IS BROKEN IN WPF
// Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(6 + 2 * 6, cd.ActualWidth));
// grid.ColumnDefinitions[1].SharedSizeGroup = null;
// grid.Measure(new Size(100, 100));
// grid.Arrange(new Rect(new Point(), new Point(100, 100)));
// PrintColumnDefinitions(grid);
// NOTE: THIS IS BROKEN IN WPF
// all in group are equal to width (MinWidth) of the sizer in the second column
// Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(6 + 1 * 6, cd.ActualWidth));
// NOTE: THIS IS BROKEN IN WPF
// grid.ColumnDefinitions[2].SharedSizeGroup = null;
// NOTE: THIS IS BROKEN IN WPF
// grid.Measure(new Size(double.PositiveInfinity, 100));
// grid.Arrange(new Rect(new Point(), new Point(100, 100)));
// PrintColumnDefinitions(grid);
// with no constraint star columns default to the MinWidth of the sizer in the column
// Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(0, cd.ActualWidth));
}
[Fact]
public void ColumnDefinitions_Collection_Is_ReadOnly()
{
var grid = CreateGrid(
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)),
("A", new GridLength(50)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(50, cd.ActualWidth));
grid.ColumnDefinitions[0] = new ColumnDefinition { Width = new GridLength(25), SharedSizeGroup = "A" };
grid.ColumnDefinitions[1] = new ColumnDefinition { Width = new GridLength(75), SharedSizeGroup = "B" };
grid.ColumnDefinitions[2] = new ColumnDefinition { Width = new GridLength(75), SharedSizeGroup = "B" };
grid.ColumnDefinitions[3] = new ColumnDefinition { Width = new GridLength(25), SharedSizeGroup = "A" };
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
}
[Fact]
public void ColumnDefinitions_Collection_Reset_SharedSizeGroup()
{
var grid = CreateGrid(
("A", new GridLength(25)),
("B", new GridLength(75)),
("B", new GridLength(75)),
("A", new GridLength(25)));
var scope = new Grid();
scope.Children.Add(grid);
var root = new Grid();
root.UseLayoutRounding = false;
root.SetValue(Grid.IsSharedSizeScopeProperty, true);
root.Children.Add(scope);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "A"), cd => Assert.Equal(25, cd.ActualWidth));
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == "B"), cd => Assert.Equal(75, cd.ActualWidth));
grid.ColumnDefinitions[0].SharedSizeGroup = null;
grid.ColumnDefinitions[0].Width = new GridLength(50);
grid.ColumnDefinitions[1].SharedSizeGroup = null;
grid.ColumnDefinitions[1].Width = new GridLength(50);
grid.ColumnDefinitions[2].SharedSizeGroup = null;
grid.ColumnDefinitions[2].Width = new GridLength(50);
grid.ColumnDefinitions[3].SharedSizeGroup = null;
grid.ColumnDefinitions[3].Width = new GridLength(50);
grid.Measure(new Size(200, 200));
grid.Arrange(new Rect(new Point(), new Point(200, 200)));
PrintColumnDefinitions(grid);
Assert.All(grid.ColumnDefinitions.Where(cd => cd.SharedSizeGroup == null), cd => Assert.Equal(50, cd.ActualWidth));
}
[Fact]
public void Correct_Grid_Bounds_When_Child_Control_Has_DesiredSize_Larger_Than_Available_Space()
{
// Issue #2746
var grid = new Grid
{
RowDefinitions = RowDefinitions.Parse("Auto"),
Children =
{
new TestControl
{
MeasureSize = new Size(150, 150),
}
}
};
var parent = new Decorator { Child = grid };
parent.Measure(new Size(100, 100));
parent.Arrange(new Rect(grid.DesiredSize));
Assert.Equal(new Size(100, 100), grid.Bounds.Size);
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Column_Width_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.ColumnDefinitions[0][ColumnDefinition.WidthProperty] = new GridLength(5);
else
grid.ColumnDefinitions[0].Width = new GridLength(5);
});
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Column_MinWidth_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.ColumnDefinitions[0][ColumnDefinition.MinWidthProperty] = 5;
else
grid.ColumnDefinitions[0].MinWidth = 5;
});
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Column_MaxWidth_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.ColumnDefinitions[0][ColumnDefinition.MaxWidthProperty] = 5;
else
grid.ColumnDefinitions[0].MaxWidth = 5;
});
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Row_Height_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.RowDefinitions[0][RowDefinition.HeightProperty] = new GridLength(5);
else
grid.RowDefinitions[0].Height = new GridLength(5);
});
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Row_MinHeight_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.RowDefinitions[0][RowDefinition.MinHeightProperty] = 5;
else
grid.RowDefinitions[0].MinHeight = 5;
});
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void Changing_Row_MaxHeight_Should_Invalidate_Grid(bool setUsingAvaloniaProperty)
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
if (setUsingAvaloniaProperty)
grid.RowDefinitions[0][RowDefinition.MaxHeightProperty] = 5;
else
grid.RowDefinitions[0].MaxHeight = 5;
});
}
[Fact]
public void Adding_Column_Should_Invalidate_Grid()
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.ColumnDefinitions.Add(new ColumnDefinition(new GridLength(5)));
});
}
[Fact]
public void Adding_Row_Should_Invalidate_Grid()
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.RowDefinitions.Add(new RowDefinition(new GridLength(5)));
});
}
[Fact]
public void Replacing_Columns_Should_Invalidate_Grid()
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.ColumnDefinitions = ColumnDefinitions.Parse("2*,1*");
});
}
[Fact]
public void Replacing_Rows_Should_Invalidate_Grid()
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.RowDefinitions = RowDefinitions.Parse("2*,1*");
});
}
[Fact]
public void Removing_Column_Should_Invalidate_Grid()
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.ColumnDefinitions.RemoveAt(0);
});
}
[Fact]
public void Removing_Row_Should_Invalidate_Grid()
{
var grid = new Grid { RowDefinitions = RowDefinitions.Parse("1*,1*") };
Change_Property_And_Verify_Measure_Requested(grid, () =>
{
grid.RowDefinitions.RemoveAt(0);
});
}
[Fact]
public void Removing_Child_Should_Invalidate_Grid_And_Be_Operational()
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("*,Auto") };
grid.Children.Add(new Decorator() { [Grid.ColumnProperty] = 0 });
grid.Children.Add(new Decorator() { Width = 10, Height = 10, [Grid.ColumnProperty] = 1 });
var size = new Size(100, 100);
grid.Measure(size);
grid.Arrange(new Rect(size));
Assert.True(grid.IsMeasureValid);
Assert.True(grid.IsArrangeValid);
Assert.Equal(90, grid.Children[0].Bounds.Width);
Assert.Equal(10, grid.Children[1].Bounds.Width);
grid.Children.RemoveAt(1);
Assert.False(grid.IsMeasureValid);
Assert.False(grid.IsArrangeValid);
grid.Measure(size);
grid.Arrange(new Rect(size));
Assert.True(grid.IsMeasureValid);
Assert.True(grid.IsArrangeValid);
Assert.Equal(100, grid.Children[0].Bounds.Width);
}
[Fact]
public void Adding_Child_Should_Invalidate_Grid_And_Be_Operational()
{
var grid = new Grid { ColumnDefinitions = ColumnDefinitions.Parse("*,Auto") };
grid.Children.Add(new Decorator() { [Grid.ColumnProperty] = 0 });
var size = new Size(100, 100);
grid.Measure(size);
grid.Arrange(new Rect(size));
Assert.True(grid.IsMeasureValid);
Assert.True(grid.IsArrangeValid);
Assert.Equal(100, grid.Children[0].Bounds.Width);
grid.Children.Add(new Decorator() { Width = 10, Height = 10, [Grid.ColumnProperty] = 1 });
Assert.False(grid.IsMeasureValid);
Assert.False(grid.IsArrangeValid);
grid.Measure(size);
grid.Arrange(new Rect(size));
Assert.True(grid.IsMeasureValid);
Assert.True(grid.IsArrangeValid);
Assert.Equal(90, grid.Children[0].Bounds.Width);
Assert.Equal(10, grid.Children[1].Bounds.Width);
}
private static void Change_Property_And_Verify_Measure_Requested(Grid grid, Action change)
{
grid.Measure(new Size(100, 100));
grid.Arrange(new Rect(grid.DesiredSize));
Assert.True(grid.IsMeasureValid);
Assert.True(grid.IsArrangeValid);
change();
Assert.False(grid.IsMeasureValid);
Assert.False(grid.IsArrangeValid);
}
private class TestControl : Control
{
public Size MeasureSize { get; set; }
protected override Size MeasureOverride(Size availableSize) => MeasureSize;
}
}
}