sourcegit/src/Views/Widgets/DiffViewer.xaml

<UserControl x:Class="SourceGit.Views.Widgets.DiffViewer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:controls="clr-namespace:SourceGit.Views.Controls"
             xmlns:models="clr-namespace:SourceGit.Models"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <UserControl.Resources>
        <Style x:Key="Style.DataGridRow.DiffViewer" TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow}">
            <EventSetter Event="RequestBringIntoView" Handler="OnTextDiffBringIntoView"/>
        </Style>
    </UserControl.Resources>
    
    <Border BorderBrush="{StaticResource Brush.Border2}" BorderThickness="1">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="26"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            
            <!-- Tool Bar -->
            <Border x:Name="toolbar" Grid.Row="0" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="0,0,0,1">
                <Grid Margin="8,0">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="*"/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>

                    <StackPanel Grid.Column="0" x:Name="orgFileNamePanel" Orientation="Horizontal">
                        <Path Width="10" Height="10" Data="{StaticResource Icon.File}"/>
                        <TextBlock x:Name="txtOrgFileName" Margin="4,0,0,0" FontFamily="Consolas"/>
                        <TextBlock Margin="8,0" Text="→" FontFamily="Consolas"/>
                    </StackPanel>

                    <StackPanel Grid.Column="1" Orientation="Horizontal">
                        <Path Width="10" Height="10" Data="{StaticResource Icon.File}"/>
                        <TextBlock x:Name="txtFileName" Margin="4,0" FontFamily="Consolas"/>
                        <controls:Loading x:Name="loading" Width="10" Height="10" Visibility="Collapsed"/>
                    </StackPanel>

                    <StackPanel Grid.Column="2" x:Name="toolbarOptions" Orientation="Horizontal">
                        <controls:IconButton
                            Width="14" Height="14"
                            Margin="4,0"
                            Icon="{StaticResource Icon.Down}"
                            ToolTip="{StaticResource Text.Diff.Next}"
                            Click="GotoNextChange"/>
                        
                        <controls:IconButton
                            Width="14" Height="14"
                            Margin="4,0"
                            Icon="{StaticResource Icon.Up}"
                            ToolTip="{StaticResource Text.Diff.Prev}"
                            Click="GotoPrevChange"/>

                        <ToggleButton
                            Width="14" Height="14"
                            Margin="4,0"
                            Style="{StaticResource Style.ToggleButton.SplitDirection}"
                            Foreground="{StaticResource Brush.FG1}"
                            ToolTip="{StaticResource Text.Diff.Mode}"
                            IsChecked="{Binding Source={x:Static models:Preference.Instance}, Path=Window.UseCombinedDiff, Mode=TwoWay}"
                            Checked="OnDiffViewModeChanged" Unchecked="OnDiffViewModeChanged"/>

                        <controls:IconButton
                            Width="14" Height="14"
                            Margin="4,0,0,0"
                            Icon="{StaticResource Icon.DiffWith}"
                            ToolTip="{StaticResource Text.Diff.UseMerger}"
                            Click="OpenWithMerger"/>
                    </StackPanel>
                </Grid>
            </Border>

            <Grid x:Name="textDiff" Grid.Row="1" SizeChanged="OnTextDiffSizeChanged">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
            </Grid>

            <Border x:Name="sizeChange" Grid.Row="1" Background="{StaticResource Brush.Window}">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center" TextElement.FontFamily="Consolas">
                    <TextBlock 
                        x:Name="txtSizeChangeTitle" 
                        Text="{StaticResource Text.Diff.Binary}" 
                        Margin="0,0,0,32" 
                        FontSize="18" FontWeight="UltraBold" 
                        Foreground="{StaticResource Brush.FG2}" 
                        HorizontalAlignment="Center"/>
                    
                    <Path 
                        x:Name="iconSizeChange" 
                        Width="64" Height="64" 
                        Data="{StaticResource Icon.Binary}" 
                        Fill="{StaticResource Brush.FG2}"/>
                    
                    <Grid Margin="0,16,0,0" HorizontalAlignment="Center">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="32"/>
                            <RowDefinition Height="32"/>
                        </Grid.RowDefinitions>

                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="8"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>

                        <TextBlock Grid.Row="0" Grid.Column="0" Text="{StaticResource Text.Diff.Binary.Old}" Foreground="{StaticResource Brush.FG2}" TextElement.FontSize="18" TextElement.FontWeight="UltraBold"/>
                        <TextBlock Grid.Row="0" Grid.Column="2" x:Name="txtOldSize" Foreground="{StaticResource Brush.FG2}" HorizontalAlignment="Right" TextElement.FontSize="18" TextElement.FontWeight="UltraBold"/>
                        <TextBlock Grid.Row="1" Grid.Column="0" Text="{StaticResource Text.Diff.Binary.New}" Foreground="{StaticResource Brush.FG2}" TextElement.FontSize="18" TextElement.FontWeight="UltraBold"/>
                        <TextBlock Grid.Row="1" Grid.Column="2" x:Name="txtNewSize" Foreground="{StaticResource Brush.FG2}" HorizontalAlignment="Right" TextElement.FontSize="18" TextElement.FontWeight="UltraBold"/>
                    </Grid>
                </StackPanel>
            </Border>

            <Border x:Name="noChange" Grid.Row="1" Background="{StaticResource Brush.Window}">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Path Width="64" Height="64" Data="{StaticResource Icon.Check}" Fill="{StaticResource Brush.FG2}"/>
                    <TextBlock 
                        Margin="0,16,0,0" 
                        Text="{StaticResource Text.Diff.NoChange}" 
                        FontSize="18" FontWeight="UltraBold"
                        Foreground="{StaticResource Brush.FG2}"
                        HorizontalAlignment="Center"/>
                </StackPanel>
            </Border>

            <Border x:Name="mask" Grid.Row="0" Grid.RowSpan="2" Background="{StaticResource Brush.Window}">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Path Width="64" Height="64" Data="{StaticResource Icon.Diff}" Fill="{StaticResource Brush.FG2}"/>
                    <TextBlock 
                        Margin="0,16,0,0" 
                        Text="{StaticResource Text.Diff.Welcome}" 
                        FontSize="18" FontWeight="UltraBold" TextOptions.TextFormattingMode="Ideal"
                        Foreground="{StaticResource Brush.FG2}"
                        HorizontalAlignment="Center"/>
                </StackPanel>
            </Border>
        </Grid>
    </Border>
</UserControl>