source: branches/2925_AutoDiffForDynamicalModels/HeuristicLab.ExtLibs/HeuristicLab.AvalonEdit/5.0.1/AvalonEdit-5.0.1/TextEditor.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:AvalonEdit="clr-namespace:ICSharpCode.AvalonEdit"
  xmlns:editing="clr-namespace:ICSharpCode.AvalonEdit.Editing"
>
  <Style TargetType="{x:Type AvalonEdit:TextEditor}">
    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}" />
    <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" />
    <Setter Property="FlowDirection" Value="LeftToRight"/> <!-- AvalonEdit does not support RTL, so ensure we use LTR by default -->
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="{x:Type AvalonEdit:TextEditor}">
          <ScrollViewer
            Focusable="False"
            Name="PART_ScrollViewer"
            CanContentScroll="True"
            VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
            HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
            Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TextArea}"
            VerticalContentAlignment="Top"
            HorizontalContentAlignment="Left"
            Background="{TemplateBinding Background}"
            Padding="{TemplateBinding Padding}"
            BorderBrush="{TemplateBinding BorderBrush}"
            BorderThickness="{TemplateBinding BorderThickness}"
          />
          <ControlTemplate.Triggers>
            <Trigger Property="WordWrap"
                     Value="True">
              <Setter TargetName="PART_ScrollViewer"
                      Property="HorizontalScrollBarVisibility"
                      Value="Disabled" />
            </Trigger>
          </ControlTemplate.Triggers>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
  </Style>
  
  <Style TargetType="{x:Type editing:TextArea}" x:Shared="False">
    <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
    <Setter Property="SelectionBrush">
      <Setter.Value>
        <SolidColorBrush
          Color="{DynamicResource {x:Static SystemColors.HighlightColorKey}}"
          Opacity="0.7"/>
      </Setter.Value>
    </Setter>
    <Setter Property="SelectionBorder">
      <Setter.Value>
        <Pen Brush="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"
             Thickness="1"/>
      </Setter.Value>
    </Setter>
    <Setter Property="SelectionForeground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="{x:Type editing:TextArea}">
          <DockPanel Focusable="False">
            <ItemsControl DockPanel.Dock="Left"
                          Focusable="False"
                          ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=LeftMargins}">
              <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                  <StackPanel Orientation="Horizontal" />
                </ItemsPanelTemplate>
              </ItemsControl.ItemsPanel>
            </ItemsControl>
            <ContentPresenter
              Panel.ZIndex="-1"
              Focusable="False"
              Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TextView}"/>
          </DockPanel>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
  </Style>
</ResourceDictionary>