editor line numbers

Qrakhen.Qamp.Editor/App.xaml

@@ -3,6 +3,10 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:Qrakhen.Qamp.Editor">
     <Application.Resources>
-         
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="/Converters/Converters.xaml"/>
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
     </Application.Resources>
 </Application>

Qrakhen.Qamp.Editor/Controls/EditorFrame.xaml

@@ -4,8 +4,9 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
              xmlns:local="clr-namespace:Qrakhen.Qamp.Editor.Controls"
+             xmlns:converters="clr-namespace:Qrakhen.Qamp.Editor.Converters"
              mc:Ignorable="d" 
-             Background="#161718"
+             Background="#222324"
              Focusable="True"
              d:DesignHeight="450" d:DesignWidth="800">
     
@@ -21,20 +22,35 @@
                       HorizontalScrollBarVisibility="Auto">
             <Grid>
                 <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="32" />
+                    <ColumnDefinition Width="48" />
                     <ColumnDefinition Width="*" />
                 </Grid.ColumnDefinitions>
-            <ListBox x:Name="LinesList"
+            <ListBox x:Name="LineNumbers"
                      Grid.Column="0" 
-                     ItemsSource="{Binding Lines.Count}"
+                     ItemsSource="{Binding Lines.Count, Converter={StaticResource LineCountConverter}}"
                      IsHitTestVisible="False"
-                     Background="#121314" 
-                     Foreground="#969696"
+                     Background="#101112" 
+                     Foreground="#92989f"
                      BorderThickness="0"
-                     Padding="0,0,5,0"
+                     Padding="0"
+                     Margin="0,-2,0,0"
                      VerticalContentAlignment="Top"
-                     HorizontalContentAlignment="Right"/>
-            <ItemsControl ItemsSource="{Binding Lines}"
+                     HorizontalContentAlignment="Right">
+                <ListBox.ItemTemplate>
+                    <ItemContainerTemplate>
+                        <TextBlock Height="14" 
+                                   LineHeight="18"
+                                   Margin="0" 
+                                   Padding="0"
+                                   FontFamily="Consolas"
+                                   FontSize="14"
+                                   Text="{Binding}"></TextBlock>
+                    </ItemContainerTemplate>
+                </ListBox.ItemTemplate>
+            </ListBox>
+            <ItemsControl x:Name="LineList"
+                          Padding="3,0,0,0"
+                          ItemsSource="{Binding Lines}"
                           Grid.Column="1">
                 <ItemsControl.ItemsPanel>
                     <ItemsPanelTemplate>

Qrakhen.Qamp.Editor/Controls/EditorFrame.xaml.cs

@@ -84,7 +84,7 @@ public partial class EditorFrame : UserControl
       Focus();
       AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
       if (adornerLayer != null) {
-         Caret = new Caret(this, Brushes.LimeGreen);
+         Caret = new Caret(LineList, Brushes.LimeGreen);
          adornerLayer.Add(Caret);
       } else {
          System.Diagnostics.Debug.WriteLine("AdornerLayer still null. Check parent hierarchy.");
@@ -95,13 +95,13 @@ public partial class EditorFrame : UserControl
    private BufferPosition CalculateCursorPosition(Point point, double scrollY, double scrollX)
    {
       var ft = TextHelper.GetText(new string('_', 1), 14, null, VisualTreeHelper.GetDpi(this).PixelsPerDip);
-      return new BufferPosition((int)(point.Y / TextHelper.LineHeight), (int)((point.X - 34) / ft.Width));
+      return new BufferPosition((int)(point.Y / TextHelper.LineHeight), (int)((point.X - 2) / ft.Width));
    }
 
    private Point CalculateCaretPosition(int line, int index, double scrollY, double scrollX)
    {
       var ft = TextHelper.GetText(new string('_', index), 14, null, VisualTreeHelper.GetDpi(this).PixelsPerDip);
-      return new Point(ft.Width - scrollX + 34, line * TextHelper.LineHeight - scrollY);
+      return new Point(ft.Width + 2, line * TextHelper.LineHeight);
    }
 
    private void MoveCaret(Point point)

Qrakhen.Qamp.Editor/Converters/Converters.xaml

@@ -0,0 +1,5 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:local="clr-namespace:Qrakhen.Qamp.Editor.Converters">
+    <local:LineCountConverter x:Key="LineCountConverter" />
+</ResourceDictionary>

Qrakhen.Qamp.Editor/Converters/LineCountConverter.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Windows.Data;
+
+namespace Qrakhen.Qamp.Editor.Converters;
+
+public class LineCountConverter : IValueConverter
+{
+   public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+   {
+      if (value is int count) {
+         var counts = new int[count];
+         for (int i = 0; ++i <= count;)
+            counts[i - 1] = i;
+         return counts;
+      }
+      return new int[0];
+   }
+
+   public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+   {
+      throw new NotImplementedException();
+   }
+}