feat: initial ElasticWrapPanel.

demo/Ursa.Demo/Models/MenuKeys.cs

@@ -7,6 +7,7 @@ public static class MenuKeys
     public const string MenuKeyButtonGroup = "ButtonGroup";
     public const string MenuKeyDivider = "Divider";
     public const string MenuKeyDualBadge = "DualBadge";
+    public const string MenuKeyElasticWrapPanel = "ElasticWrapPanel";
     public const string MenuKeyIpBox = "IPv4Box";
     public const string MenuKeyKeyGestureInput = "KeyGestureInput";
     public const string MenuKeyLoading = "Loading";

demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml

@@ -0,0 +1,12 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:u="https://irihi.tech/ursa"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="Ursa.Demo.Pages.ElasticWrapPanelDemo">
+    <u:ElasticWrapPanel>
+        <TextBlock Text="Rua ta ta"/>
+        <TextBlock Text="320"/>
+    </u:ElasticWrapPanel>
+</UserControl>

demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml.cs

@@ -0,0 +1,13 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Ursa.Demo.Pages;
+
+public partial class ElasticWrapPanelDemo : UserControl
+{
+    public ElasticWrapPanelDemo()
+    {
+        InitializeComponent();
+    }
+}

demo/Ursa.Demo/ViewModels/ElasticWrapPanelDemoViewModel.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace Ursa.Demo.ViewModels;
+
+public class ElasticWrapPanelDemoViewModel : ObservableObject
+{
+}

demo/Ursa.Demo/ViewModels/MainViewViewModel.cs

@@ -29,6 +29,7 @@ public class MainViewViewModel : ViewModelBase
             MenuKeys.MenuKeyButtonGroup => new ButtonGroupDemoViewModel(),
             MenuKeys.MenuKeyDivider => new DividerDemoViewModel(),
             MenuKeys.MenuKeyDualBadge => new DualBadgeDemoViewModel(),
+            MenuKeys.MenuKeyElasticWrapPanel => new ElasticWrapPanelDemoViewModel(),
             MenuKeys.MenuKeyIpBox => new IPv4BoxDemoViewModel(),
             MenuKeys.MenuKeyKeyGestureInput => new KeyGestureInputDemoViewModel(),
             MenuKeys.MenuKeyLoading => new LoadingDemoViewModel(),

demo/Ursa.Demo/ViewModels/MenuViewModel.cs

@@ -16,6 +16,7 @@ public class MenuViewModel: ViewModelBase
             new() { MenuHeader = "ButtonGroup", Key = MenuKeys.MenuKeyButtonGroup },
             new() { MenuHeader = "Divider", Key = MenuKeys.MenuKeyDivider },
             new() { MenuHeader = "DualBadge", Key = MenuKeys.MenuKeyDualBadge },
+            new() { MenuHeader = "ElasticWrapPanel", Key = MenuKeys.MenuKeyElasticWrapPanel },
             new() { MenuHeader = "IPv4Box", Key = MenuKeys.MenuKeyIpBox },
             new() { MenuHeader = "KeyGestureInput", Key = MenuKeys.MenuKeyKeyGestureInput },
             new() { MenuHeader = "Loading", Key = MenuKeys.MenuKeyLoading },

src/Ursa.Themes.Semi/Controls/ElasticWrapPanel.axaml

@@ -0,0 +1,3 @@
+<ResourceDictionary xmlns="https://github.com/avaloniaui"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+</ResourceDictionary>

src/Ursa.Themes.Semi/Controls/_index.axaml

@@ -6,6 +6,7 @@
         <ResourceInclude Source="ButtonGroup.axaml" />
         <ResourceInclude Source="Divider.axaml" />
         <ResourceInclude Source="DualBadge.axaml" />
+        <ResourceInclude Source="ElasticWrapPanel.axaml" />
         <ResourceInclude Source="IPv4Box.axaml" />
         <ResourceInclude Source="KeyGestureInput.axaml" />
         <ResourceInclude Source="Loading.axaml" />

src/Ursa/Controls/ElasticWrapPanel.cs

@@ -0,0 +1,33 @@
+using Avalonia;
+using Avalonia.Controls;
+
+namespace Ursa.Controls;
+
+public class ElasticWrapPanel : Panel
+{
+    protected override Size MeasureOverride(Size availableSize)
+    {
+        var panelDesiredSize = new Size();
+
+        foreach (var child in Children)
+        {
+            child.Measure(availableSize);
+            panelDesiredSize = child.DesiredSize;
+        }
+
+        return panelDesiredSize;
+    }
+
+    protected override Size ArrangeOverride(Size finalSize)
+    {
+        foreach (var child in Children)
+        {
+            const double x = 50;
+            const double y = 50;
+
+            child.Arrange(new Rect(new Point(x, y), child.DesiredSize));
+        }
+
+        return finalSize;
+    }
+}