enhance: avalonia TextBox demo.

Author: NaBian

src/Avalonia/HandyControlDemo_Avalonia/Data/DemoInfo.json

@@ -24,11 +24,8 @@
       [ "DataGrid", "DataGridDemo", "Brush.DataGrid", "", "" ],
       [ "TreeView", "TreeViewDemo", "Brush.TreeView", "", "" ],
       [ "ListBox", "ListBoxDemo", "Brush.ListBox", "", "" ],
-      [ "ListView", "ListViewDemo", "Brush.ListView", "", "" ],
       [ "GroupBox", "GroupBoxDemo", "Brush.GroupBox", "", "" ],
       [ "Menu", "MenuDemo", "Brush.ContextMenu", "", "" ],
-      [ "RichTextBox", "RichTextBoxDemo", "Brush.RichTextBox", "", "" ],
-      [ "FlowDocument", "FlowDocumentDemo", "Brush.WPFFlowDocument", "", "" ],
       [ "ToolBar", "ToolBarDemo", "Brush.ToolBar", "", "" ],
       [ "Border", "BorderDemo", "Brush.BorderElement", "", "" ],
       [ "Label", "LabelDemo", "Brush.Label", "", "" ],
@@ -121,7 +118,7 @@
     "group": false,
     "demoItemList": [
       [ "HatchBrushGenerator", "HatchBrushGeneratorDemo", "Brush.DataGenerator", "", "" ],
-      [ "Morphing_Animation", "GeometryAnimationDemo", "Brush.Animation", "", "" ],
+      [ "MorphingAnimation", "GeometryAnimationDemo", "Brush.Animation", "", "" ],
       [ "Effects", "EffectsDemo", "Brush.Effects", "", "" ]
     ]
   }

src/Avalonia/HandyControlDemo_Avalonia/UserControl/Styles/TextBoxDemo.axaml

@@ -21,6 +21,11 @@
                          Theme="{StaticResource TextBoxExtend}"
                          Margin="0,32,0,0"
                          Text="This is the content" />
+                <TextBox hc:TitleElement.Title="This is the title"
+                         hc:InfoElement.ShowClearButton="True"
+                         Theme="{StaticResource TextBoxExtend}"
+                         Margin="0,32,0,0"
+                         Text="This is the content" />
                 <TextBox hc:TitleElement.Title="This is the title"
                          Theme="{StaticResource TextBoxExtend}"
                          Margin="0,16,0,0"
@@ -59,6 +64,11 @@
                          Theme="{StaticResource TextBoxExtend.Small}"
                          Margin="0,32,0,0"
                          Text="This is the content" />
+                <TextBox hc:TitleElement.Title="This is the title"
+                         hc:InfoElement.ShowClearButton="True"
+                         Theme="{StaticResource TextBoxExtend.Small}"
+                         Margin="0,32,0,0"
+                         Text="This is the content" />
                 <TextBox hc:TitleElement.Title="This is the title"
                          Theme="{StaticResource TextBoxExtend.Small}"
                          Margin="0,16,0,0"

src/Avalonia/HandyControl_Avalonia/Themes/Basic/Converters.axaml

@@ -10,6 +10,7 @@
     <hc:CornerRadiusSplitConverter x:Key="CornerRadiusSplitConverter" />
     <hc:DoubleExpandConverter x:Key="DoubleExpandConverter" />
     <hc:Double2GridLengthConverter x:Key="Double2GridLengthConverter" />
+    <hc:ThicknessSplitConverter x:Key="ThicknessSplitConverter" />
     <avalonia:StringFormatConverter x:Key="StringFormatConverter" />
     <avalonia:MarginMultiplierConverter x:Key="LeftMarginConverter"
                                         Indent="16"

src/Avalonia/HandyControl_Avalonia/Themes/Styles/TextBox.axaml

@@ -7,7 +7,7 @@ namespace HandyControl.Tools.Converter;
 
 public class Double2GridLengthConverter : IValueConverter
 {
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
     {
         if (value is not double doubleValue)
         {
@@ -22,7 +22,7 @@ public class Double2GridLengthConverter : IValueConverter
         return new GridLength(doubleValue);
     }
 
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
     {
         throw new NotSupportedException();
     }

src/Avalonia/HandyControl_Avalonia/Tools/Converter/Double2GridLengthConverter.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Globalization;
+using Avalonia;
+using Avalonia.Data.Converters;
+
+namespace HandyControl.Tools.Converter;
+
+public class ThicknessSplitConverter : IValueConverter
+{
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is not Thickness thickness || parameter is not string str)
+        {
+            return value;
+        }
+
+        string[] arr = str.Split(',');
+
+        if (arr.Length != 4)
+        {
+            return thickness;
+        }
+
+        return new Thickness(
+            left: double.TryParse(arr[0], out double leftTimes) ? leftTimes * thickness.Left : thickness.Left,
+            top: double.TryParse(arr[1], out double topTimes) ? topTimes * thickness.Top : thickness.Top,
+            right: double.TryParse(arr[2], out double rightTimes) ? rightTimes * thickness.Right : thickness.Right,
+            bottom: double.TryParse(arr[3], out double bottomTimes) ? bottomTimes * thickness.Bottom : thickness.Bottom
+        );
+    }
+
+    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        throw new NotSupportedException();
+    }
+}

src/Avalonia/HandyControl_Avalonia/Tools/Converter/ThicknessSplitConverter.cs

@@ -9,43 +9,24 @@ public class ThicknessSplitConverter : IValueConverter
 {
     public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
     {
-        if (value is Thickness thickness)
+        if (value is not Thickness thickness || parameter is not string str)
         {
-            if (parameter is string str)
-            {
-                var arr = str.Split(',');
-
-                if (arr.Length != 4)
-                {
-                    return thickness;
-                }
-
-                var result = new Thickness(thickness.Left, thickness.Top, thickness.Right, thickness.Bottom);
-
-                if (double.TryParse(arr[0], out double leftTimes))
-                {
-                    result.Left = leftTimes * thickness.Left;
-                }
-
-                if (double.TryParse(arr[1], out double topTimes))
-                {
-                    result.Top = topTimes * thickness.Top;
-                }
-
-                if (double.TryParse(arr[2], out double rightTimes))
-                {
-                    result.Right = rightTimes * thickness.Right;
-                }
+            return value;
+        }
 
-                if (double.TryParse(arr[3], out double bottomTimes))
-                {
-                    result.Bottom = bottomTimes * thickness.Bottom;
-                }
+        var arr = str.Split(',');
 
-                return result;
-            }
+        if (arr.Length != 4)
+        {
+            return thickness;
         }
-        return value;
+
+        return new Thickness(
+            left: double.TryParse(arr[0], out double leftTimes) ? leftTimes * thickness.Left : thickness.Left,
+            top: double.TryParse(arr[1], out double topTimes) ? topTimes * thickness.Top : thickness.Top,
+            right: double.TryParse(arr[2], out double rightTimes) ? rightTimes * thickness.Right : thickness.Right,
+            bottom: double.TryParse(arr[3], out double bottomTimes) ? bottomTimes * thickness.Bottom : thickness.Bottom
+        );
     }
 
     public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)