Controls: Add UnitTextBox

Elwig/Controls/BoolToValueConverter.cs

@@ -1,16 +1,17 @@
 using System;
 using System.Windows.Data;
+using System.Globalization;
 
 namespace Elwig.Controls {
     public class BoolToValueConverter<T> : IValueConverter {
         public T FalseValue { get; set; }
         public T TrueValue { get; set; }
 
-        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
             return (bool)value ? TrueValue : FalseValue;
         }
 
-        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {
             return value?.Equals(TrueValue) ?? false;
         }
     }

Elwig/Controls/UnitTextBox.xaml

@@ -0,0 +1,11 @@
+<UserControl x:Class="Elwig.Controls.UnitTextBox"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Height="25">
+        <TextBox x:Name="TextBox" TextAlignment="Right" FontSize="14" VerticalAlignment="Stretch"
+                 Padding="{Binding ElementName=UnitBlock, Path=ActualWidth, Converter={StaticResource WidthToPaddingConverter}}"
+                 Text="{Binding Path=Text, Mode=TwoWay}" TextChanged="TextBox_TextChanged"/>
+        <TextBlock x:Name="UnitBlock" Text="{Binding Path=Unit}" Margin="0,0,4,4" FontSize="10"
+                   HorizontalAlignment="Right" VerticalAlignment="Bottom"/>
+    </Grid>
+</UserControl>

Elwig/Controls/UnitTextBox.xaml.cs

@@ -0,0 +1,31 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace Elwig.Controls {
+    public partial class UnitTextBox : UserControl {
+
+        public event TextChangedEventHandler? TextChanged;
+
+        public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(UnitTextBox));
+        public string Text {
+            get => (string)GetValue(TextProperty);
+            set => SetValue(TextProperty, value);
+        }
+
+        public static readonly DependencyProperty UnitProperty = DependencyProperty.Register("Unit", typeof(string), typeof(UnitTextBox));
+        public string Unit {
+            get => (string)GetValue(UnitProperty);
+            set => SetValue(UnitProperty, value);
+        }
+
+        public UnitTextBox() {
+            InitializeComponent();
+            DataContext = this;
+        }
+
+        private void TextBox_TextChanged(object sender, TextChangedEventArgs evt) {
+            if (TextChanged != null) TextChanged(sender, evt);
+        }
+    }
+}

Elwig/Controls/WidthToPaddingConverter.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Windows;
+using System.Windows.Data;
+using System.Globalization;
+
+namespace Elwig.Controls {
+    public class WidthToPaddingConverter : IValueConverter {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
+            return new Thickness(2, 2, 4 + (double)value, 2);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {
+            return ((Thickness)value).Right - 4;
+        }
+    }
+}