Steven Kirk
11 years ago
73 changed files with 811 additions and 139 deletions
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System.Collections.Generic; |
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using System.Linq; |
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using Avalonia.Controls; |
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namespace Avalonia.Diagnostics.Views |
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{ |
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/// <summary>
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/// A simple grid control that lays out columns with a equal width and rows to their desired
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/// size.
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/// </summary>
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/// <remarks>
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/// This is used in the devtools because our <see cref="Grid"/> performance sucks.
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/// </remarks>
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public class SimpleGrid : Panel |
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{ |
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private List<double> _columnWidths = new List<double>(); |
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private List<double> _rowHeights = new List<double>(); |
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private double _totalWidth; |
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private double _totalHeight; |
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/// <summary>
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/// Defines the Column attached property.
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/// </summary>
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public static readonly AttachedProperty<int> ColumnProperty = |
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AvaloniaProperty.RegisterAttached<SimpleGrid, Control, int>("Column"); |
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/// <summary>
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/// Defines the Row attached property.
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/// </summary>
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public static readonly AttachedProperty<int> RowProperty = |
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AvaloniaProperty.RegisterAttached<SimpleGrid, Control, int>("Row"); |
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/// <summary>
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/// Gets the value of the Column attached property for a control.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <returns>The control's column.</returns>
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public static int GetColumn(IControl control) |
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{ |
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return control.GetValue(ColumnProperty); |
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} |
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/// <summary>
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/// Gets the value of the Row attached property for a control.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <returns>The control's row.</returns>
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public static int GetRow(IControl control) |
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{ |
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return control.GetValue(RowProperty); |
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} |
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/// <summary>
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/// Sets the value of the Column attached property for a control.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <param name="value">The column value.</param>
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public static void SetColumn(IControl control, int value) |
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{ |
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control.SetValue(ColumnProperty, value); |
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} |
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/// <summary>
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/// Sets the value of the Row attached property for a control.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <param name="value">The row value.</param>
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public static void SetRow(IControl control, int value) |
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{ |
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control.SetValue(RowProperty, value); |
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} |
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protected override Size MeasureOverride(Size availableSize) |
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{ |
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_columnWidths.Clear(); |
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_rowHeights.Clear(); |
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_totalWidth = 0; |
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_totalHeight = 0; |
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foreach (var child in Children) |
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{ |
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var column = GetColumn(child); |
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var row = GetRow(child); |
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child.Measure(availableSize); |
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var desired = child.DesiredSize; |
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UpdateCell(_columnWidths, column, desired.Width, ref _totalWidth); |
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UpdateCell(_rowHeights, row, desired.Height, ref _totalHeight); |
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} |
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return new Size(_totalWidth, _totalHeight); |
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} |
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protected override Size ArrangeOverride(Size finalSize) |
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{ |
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var columnWidth = finalSize.Width / _columnWidths.Count; |
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foreach (var child in Children) |
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{ |
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var column = GetColumn(child); |
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var row = GetRow(child); |
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var rect = new Rect(column * columnWidth, GetRowTop(row), columnWidth, _rowHeights[row]); |
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child.Arrange(rect); |
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} |
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return new Size(finalSize.Width, _totalHeight); |
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} |
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private double UpdateCell(IList<double> cells, int cell, double value, ref double total) |
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{ |
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while (cells.Count < cell + 1) |
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{ |
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cells.Add(0); |
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} |
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var existing = cells[cell]; |
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if (value > existing) |
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{ |
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cells[cell] = value; |
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total += value - existing; |
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return value; |
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} |
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else |
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{ |
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return existing; |
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} |
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} |
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private double GetRowTop(int row) |
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{ |
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var result = 0.0; |
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for (var i = 0; i < row; ++i) |
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{ |
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result += _rowHeights[i]; |
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} |
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return result; |
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} |
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} |
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} |
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@ -1,10 +1,10 @@ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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namespace Avalonia.Controls |
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namespace Avalonia.Media |
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{ |
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/// <summary>
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/// Controls the wrapping mode in a <see cref="TextBlock"/>.
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/// Controls the wrapping mode of text.
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/// </summary>
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public enum TextWrapping |
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{ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System.Reflection; |
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using Avalonia.Controls.Templates; |
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using Avalonia.Data; |
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using Avalonia.Markup.Data; |
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using System; |
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namespace Avalonia.Markup.Xaml.Templates |
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{ |
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public class MemberSelector : IMemberSelector |
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{ |
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public string MemberName { get; set; } |
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private ExpressionNode _expressionNode; |
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private string _memberName; |
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private ExpressionNode _memberValueNode; |
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public string MemberName |
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{ |
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get { return _memberName; } |
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set |
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{ |
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if (_memberName != value) |
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{ |
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_memberName = value; |
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_expressionNode = null; |
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_memberValueNode = null; |
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} |
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} |
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} |
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public object Select(object o) |
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{ |
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// TODO: Handle nested property paths, changing values etc.
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var property = o.GetType().GetRuntimeProperty(MemberName); |
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return property?.GetValue(o); |
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if (string.IsNullOrEmpty(MemberName)) |
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{ |
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return o; |
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} |
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if (_expressionNode == null) |
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{ |
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_expressionNode = ExpressionNodeBuilder.Build(MemberName); |
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_memberValueNode = _expressionNode; |
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while (_memberValueNode.Next != null) |
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{ |
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_memberValueNode = _memberValueNode.Next; |
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} |
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} |
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_expressionNode.Target = new WeakReference(o); |
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object result = _memberValueNode.CurrentValue.Target; |
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if (result == AvaloniaProperty.UnsetValue) |
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{ |
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return null; |
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} |
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else if (result is BindingError) |
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{ |
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return null; |
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} |
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return result; |
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} |
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} |
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} |
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} |
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@ -0,0 +1,168 @@ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using Avalonia.Markup.Xaml.Templates; |
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using System; |
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using Xunit; |
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namespace Avalonia.Markup.Xaml.UnitTests.Templates |
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{ |
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public class MemberSelectorTests |
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{ |
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[Fact] |
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public void Should_Not_Hold_Reference_To_Object() |
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{ |
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WeakReference dataRef = null; |
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var selector = new MemberSelector() { MemberName = "Child.StringValue" }; |
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Action run = () => |
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{ |
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var data = new Item() |
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{ |
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Child = new Item() { StringValue = "Value1" } |
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}; |
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Assert.Same("Value1", selector.Select(data)); |
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dataRef = new WeakReference(data); |
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}; |
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run(); |
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GC.Collect(); |
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Assert.False(dataRef.IsAlive); |
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} |
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[Fact] |
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public void Should_Select_Child_Property_Value() |
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{ |
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var selector = new MemberSelector() { MemberName = "Child.StringValue" }; |
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var data = new Item() |
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{ |
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Child = new Item() { StringValue = "Value1" } |
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}; |
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Assert.Same("Value1", selector.Select(data)); |
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} |
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[Fact] |
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public void Should_Select_Child_Property_Value_In_Multiple_Items() |
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{ |
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var selector = new MemberSelector() { MemberName = "Child.StringValue" }; |
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var data = new Item[] |
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{ |
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new Item() { Child = new Item() { StringValue = "Value1" } }, |
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new Item() { Child = new Item() { StringValue = "Value2" } }, |
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new Item() { Child = new Item() { StringValue = "Value3" } } |
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}; |
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Assert.Same("Value1", selector.Select(data[0])); |
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Assert.Same("Value2", selector.Select(data[1])); |
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Assert.Same("Value3", selector.Select(data[2])); |
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} |
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[Fact] |
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public void Should_Select_MoreComplex_Property_Value() |
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{ |
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var selector = new MemberSelector() { MemberName = "Child.Child.Child.StringValue" }; |
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var data = new Item() |
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{ |
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Child = new Item() |
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{ |
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Child = new Item() |
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{ |
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Child = new Item() { StringValue = "Value1" } |
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} |
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} |
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}; |
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Assert.Same("Value1", selector.Select(data)); |
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} |
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[Fact] |
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public void Should_Select_Null_Value_On_Null_Object() |
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{ |
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var selector = new MemberSelector() { MemberName = "StringValue" }; |
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Assert.Equal(null, selector.Select(null)); |
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} |
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[Fact] |
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public void Should_Select_Null_Value_On_Wrong_MemberName() |
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{ |
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var selector = new MemberSelector() { MemberName = "WrongProperty" }; |
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var data = new Item() { StringValue = "Value1" }; |
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Assert.Same(null, selector.Select(data)); |
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} |
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[Fact] |
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public void Should_Select_Simple_Property_Value() |
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{ |
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var selector = new MemberSelector() { MemberName = "StringValue" }; |
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var data = new Item() { StringValue = "Value1" }; |
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Assert.Same("Value1", selector.Select(data)); |
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} |
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[Fact] |
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public void Should_Select_Simple_Property_Value_In_Multiple_Items() |
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{ |
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var selector = new MemberSelector() { MemberName = "StringValue" }; |
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var data = new Item[] |
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{ |
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new Item() { StringValue = "Value1" }, |
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new Item() { StringValue = "Value2" }, |
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new Item() { StringValue = "Value3" } |
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}; |
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Assert.Same("Value1", selector.Select(data[0])); |
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Assert.Same("Value2", selector.Select(data[1])); |
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Assert.Same("Value3", selector.Select(data[2])); |
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} |
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[Fact] |
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public void Should_Select_Target_On_Empty_MemberName() |
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{ |
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var selector = new MemberSelector(); |
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var data = new Item() { StringValue = "Value1" }; |
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Assert.Same(data, selector.Select(data)); |
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} |
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[Fact] |
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public void Should_Support_Change_Of_MemberName() |
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{ |
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var selector = new MemberSelector() { MemberName = "StringValue" }; |
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var data = new Item() |
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{ |
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StringValue = "Value1", |
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IntValue = 1 |
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}; |
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Assert.Same("Value1", selector.Select(data)); |
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selector.MemberName = "IntValue"; |
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Assert.Equal(1, selector.Select(data)); |
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} |
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private class Item |
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{ |
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public Item Child { get; set; } |
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public int IntValue { get; set; } |
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public string StringValue { get; set; } |
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} |
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} |
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} |
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@ -0,0 +1,47 @@ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using Avalonia.Controls; |
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using Avalonia.Layout; |
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using Avalonia.Media; |
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using Xunit; |
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#if AVALONIA_CAIRO
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namespace Avalonia.Cairo.RenderTests.Controls |
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#elif AVALONIA_SKIA
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namespace Avalonia.Skia.RenderTests |
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#else
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namespace Avalonia.Direct2D1.RenderTests.Controls |
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#endif
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{ |
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public class TextBlockTests : TestBase |
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{ |
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public TextBlockTests() |
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: base(@"Controls\TextBlock") |
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{ |
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} |
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[Fact] |
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public void Wrapping_NoWrap() |
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{ |
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Decorator target = new Decorator |
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{ |
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Padding = new Thickness(8), |
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Width = 200, |
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Height = 200, |
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Child = new TextBlock |
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{ |
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Background = Brushes.Red, |
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FontSize = 12, |
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Foreground = Brushes.Black, |
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Text = "Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit", |
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VerticalAlignment = VerticalAlignment.Top, |
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TextWrapping = TextWrapping.NoWrap, |
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} |
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}; |
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RenderToFile(target); |
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CompareImages(); |
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} |
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} |
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} |
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After Width: | Height: | Size: 1.2 KiB |
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