From 365cff79c1adb95149c45dbe8e5625bf73073e87 Mon Sep 17 00:00:00 2001
From: lahm86 <33758420+lahm86@users.noreply.github.com>
Date: Tue, 25 Mar 2025 11:38:46 +0000
Subject: [PATCH] tools/installer: move language to external file

This moves all language used in the installer to an embedded JSON file
to allow for customisation per game.
---
 .../Controls/FinishStepControl.xaml           | 24 ++++-----
 .../Controls/InstallSettingsStepControl.xaml  | 49 ++++++++---------
 .../Controls/InstallSourceControl.xaml        | 11 ++--
 .../Controls/InstallStepControl.xaml          |  6 +--
 .../Controls/SourceStepControl.xaml           | 25 +++++----
 .../Controls/TRXInstallWindow.xaml            |  6 +--
 .../Installers/InstallExecutor.cs             |  6 +--
 .../Installers/InstallUtils.cs                | 20 +++----
 .../TRX_InstallerLib/Models/FinishStep.cs     |  2 +-
 .../Models/InstallSettingsStep.cs             |  4 +-
 .../Models/InstallSourceViewModel.cs          |  8 ++-
 .../TRX_InstallerLib/Models/InstallStep.cs    |  2 +-
 .../TRX_InstallerLib/Models/Language.cs       |  2 +-
 .../TRX_InstallerLib/Models/SourceStep.cs     |  2 +-
 .../TRX_InstallerLib/Resources/Lang/en.json   | 53 ++++++++++++++++++-
 .../TRX_InstallerLib/Resources/styles.xaml    |  3 ++
 .../TRX_InstallerLib/TRX_InstallerLib.csproj  |  2 +
 .../Utils/ConditionalMarkupConverter.cs       |  4 +-
 .../Utils/ConditionalViewTextConverter.cs     | 13 +++++
 .../TRX_InstallerLib/Utils/CueFile.cs         |  5 +-
 .../TRX_InstallerLib/Utils/CueTrack.cs        | 11 ++--
 .../TRX_InstallerLib/Utils/FileBrowser.cs     |  4 +-
 .../TRX_InstallerLib/Utils/ShortcutUtils.cs   |  5 +-
 23 files changed, 170 insertions(+), 97 deletions(-)
 create mode 100644 tools/installer/TRX_InstallerLib/Utils/ConditionalViewTextConverter.cs

diff --git a/tools/installer/TRX_InstallerLib/Controls/FinishStepControl.xaml b/tools/installer/TRX_InstallerLib/Controls/FinishStepControl.xaml
index 8c04ea48b..028c6e43f 100644
--- a/tools/installer/TRX_InstallerLib/Controls/FinishStepControl.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/FinishStepControl.xaml
@@ -6,7 +6,7 @@
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:models="clr-namespace:TRX_InstallerLib.Models"
     d:DataContext="{d:DesignInstance Type=models:FinishStep}"
-    mc:Ignorable="d" 
+    mc:Ignorable="d"
     d:DesignHeight="450" d:DesignWidth="800">
 
     <UserControl.Resources>
@@ -14,19 +14,17 @@
     </UserControl.Resources>
 
     <StackPanel Orientation="Vertical">
-        <TextBlock TextWrapping="Wrap" VerticalAlignment="Center" Margin="0,0,0,12" Style="{StaticResource heading}">
-            Step 4: Done
-        </TextBlock>
+        <TextBlock
+            Style="{StaticResource heading}"
+            Text="{Binding ViewText[step_finish_heading]}"/>
 
-        <TextBlock VerticalAlignment="Center" Margin="0,0,0,12" TextWrapping="Wrap">
-            Installation complete. To configure more advanced features, you can edit the JSON files in the cfg/ directory with a text editor.
-        </TextBlock>
+        <TextBlock
+            VerticalAlignment="Center"
+            Margin="0,0,0,24"
+            TextWrapping="Wrap"
+            Text="{Binding ViewText[step_finish_content]}"/>
 
-        <TextBlock VerticalAlignment="Center" Margin="0,0,0,12">
-            Happy raiding :)
-        </TextBlock>
-
-        <CheckBox IsChecked="{Binding FinishSettings.OpenGameDirectory}" Content="Open game directory after closing this window" Margin="0,0,0,12" />
-        <CheckBox IsChecked="{Binding FinishSettings.LaunchGame}" Content="Launch the game after closing this window" Margin="0,0,0,12" />
+        <CheckBox IsChecked="{Binding FinishSettings.OpenGameDirectory}" Content="{Binding ViewText[step_finish_open_directory]}" Margin="0,0,0,12" />
+        <CheckBox IsChecked="{Binding FinishSettings.LaunchGame}" Content="{Binding ViewText[step_finish_open_game]}" Margin="0,0,0,12" />
     </StackPanel>
 </UserControl>
diff --git a/tools/installer/TRX_InstallerLib/Controls/InstallSettingsStepControl.xaml b/tools/installer/TRX_InstallerLib/Controls/InstallSettingsStepControl.xaml
index 3336554fe..e3f26cf76 100644
--- a/tools/installer/TRX_InstallerLib/Controls/InstallSettingsStepControl.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/InstallSettingsStepControl.xaml
@@ -7,7 +7,7 @@
     xmlns:models="clr-namespace:TRX_InstallerLib.Models"
     xmlns:utils="clr-namespace:TRX_InstallerLib.Utils"
     d:DataContext="{d:DesignInstance Type=models:InstallSettingsStep}"
-    mc:Ignorable="d" 
+    mc:Ignorable="d"
     d:DesignHeight="450" d:DesignWidth="800">
 
     <UserControl.Resources>
@@ -20,9 +20,9 @@
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
 
-        <TextBlock Grid.Row="0" TextWrapping="Wrap" VerticalAlignment="Center" Margin="0,0,0,12" Style="{StaticResource heading}">
-            Step 2: Installation options
-        </TextBlock>
+        <TextBlock
+            Style="{StaticResource heading}"
+            Text="{Binding ViewText[step_settings_heading]}"/>
 
         <ScrollViewer Grid.Row="1" ScrollViewer.VerticalScrollBarVisibility="Auto">
             <ScrollViewer.Template>
@@ -82,15 +82,10 @@
             <StackPanel Orientation="Vertical">
                 <CheckBox VerticalAlignment="Center" Margin="0,0,0,12" IsChecked="{Binding InstallSettings.DownloadMusic}" IsEnabled="{Binding InstallSettings.IsDownloadingMusicNeeded}">
                     <TextBlock TextWrapping="Wrap">
-                        Download music tracks
-                        <Run Foreground="ForestGreen" Text="{Binding InstallSettings.IsDownloadingMusicNeeded, Converter={utils:ConditionalMarkupConverter TrueValue='', FalseValue='(already found)'}, Mode=OneWay}" />
+                        <Run Text="{Binding ViewText[step_settings_music_heading]}"/>
+                        <Run Foreground="ForestGreen" Text="{Binding InstallSettings.IsDownloadingMusicNeeded, Converter={utils:ConditionalViewTextConverter TrueValue='', FalseValue='label_already_found'}, Mode=OneWay}" />
                         <LineBreak />
-                        <Run Style="{StaticResource small}">
-                            This option lets you download compatible music files for the game
-                            automatically (60 MB). The legality of these files is disputable;
-                            the most legal way to import the music to PC is to obtain them from
-                            your own source - TR2 supports FLAC, OOG, MP3 and WAV files.
-                        </Run>
+                        <Run Style="{StaticResource small}" Text="{Binding ViewText[step_settings_music_content]}"/>
                     </TextBlock>
                 </CheckBox>
 
@@ -100,33 +95,31 @@
                             <utils:ComparisonConverter x:Key="ComparisonConverter" />
                         </StackPanel.Resources>
                         <TextBlock TextWrapping="Wrap" Margin="0,0,0,6">
-                            Download Unfinished Business expansion pack
-                            <Run Foreground="ForestGreen" Text="{Binding InstallSettings.IsDownloadingExpansionNeeded, Converter={utils:ConditionalMarkupConverter TrueValue='', FalseValue='(already found)'}, Mode=OneWay}" />
+                            <Run Text="{Binding ViewText[step_settings_expansion_heading]}"/>
+                            <Run Foreground="ForestGreen" Text="{Binding InstallSettings.IsDownloadingExpansionNeeded, Converter={utils:ConditionalViewTextConverter TrueValue='', FalseValue='label_already_found'}, Mode=OneWay}" />
                             <LineBreak />
-                            <Run Style="{StaticResource small}">
-                            The Unfinished Business expansion pack was made freeware. However, the Steam and GOG versions do not ship it. This option lets you download the expansion files automatically (6 MB).
-                            </Run>
+                            <Run Style="{StaticResource small}" Text="{Binding ViewText[step_settings_expansion_content]}"/>
                         </TextBlock>
-                        <RadioButton IsEnabled="{Binding InstallSettings.DownloadExpansionPack}" Style="{StaticResource small}" Margin="0,0,0,6" Content="Fan-made edition (includes music triggers)"
+                        <RadioButton IsEnabled="{Binding InstallSettings.DownloadExpansionPack}" Style="{StaticResource small}" Margin="0,0,0,6" Content="{Binding ViewText[step_settings_expansion_music]}"
                                      IsChecked="{Binding Path=InstallSettings.ExpansionPackType, Converter={StaticResource ComparisonConverter}, ConverterParameter={x:Static models:ExpansionPackType.Music}}"/>
-                        <RadioButton IsEnabled="{Binding InstallSettings.DownloadExpansionPack}" Style="{StaticResource small}" Margin="0,0,0,6" Content="Original edition (does not include music triggers)"
+                        <RadioButton IsEnabled="{Binding InstallSettings.DownloadExpansionPack}" Style="{StaticResource small}" Margin="0,0,0,6" Content="{Binding ViewText[step_settings_expansion_vanilla]}"
                                      IsChecked="{Binding Path=InstallSettings.ExpansionPackType, Converter={StaticResource ComparisonConverter}, ConverterParameter={x:Static models:ExpansionPackType.Vanilla}}"/>
                     </StackPanel>
                 </CheckBox>
 
                 <CheckBox VerticalAlignment="Center" Margin="0,0,0,12" IsChecked="{Binding InstallSettings.ImportSaves}" IsEnabled="{Binding InstallSettings.InstallSource.IsImportingSavesSupported}">
                     <TextBlock TextWrapping="Wrap">
-                        Import saves
+                        <Run Text="{Binding ViewText[step_settings_saves_header]}"/>
                         <LineBreak />
-                        <Run Style="{StaticResource small}">
-                            Imports existing savegame files. Only TombATI and TR1X savegame format is supported at this time.
-                        </Run>
+                        <Run Style="{StaticResource small}" Text="{Binding ViewText[step_settings_saves_content]}"/>
                     </TextBlock>
                 </CheckBox>
 
-                <CheckBox VerticalAlignment="Center" Margin="0,0,0,12" IsChecked="{Binding InstallSettings.CreateDesktopShortcut}">
-                    Create desktop shortcut
-                </CheckBox>
+                <CheckBox
+                    VerticalAlignment="Center"
+                    Margin="0,0,0,12"
+                    IsChecked="{Binding InstallSettings.CreateDesktopShortcut}"
+                    Content="{Binding ViewText[step_settings_shortcut_heading]}"/>
 
                 <Separator />
 
@@ -136,9 +129,9 @@
                         <ColumnDefinition Width="*" />
                         <ColumnDefinition Width="Auto" />
                     </Grid.ColumnDefinitions>
-                    <Label Grid.Column="0" VerticalAlignment="Center" Margin="0,0,12,0" Padding="0" Content="Destination folder:" />
+                    <Label Grid.Column="0" VerticalAlignment="Center" Margin="0,0,12,0" Padding="0" Content="{Binding ViewText[label_destination_folder]}" />
                     <TextBlock Grid.Column="1" VerticalAlignment="Center" Text="{Binding InstallSettings.TargetDirectory}" TextTrimming="CharacterEllipsis" />
-                    <Button Grid.Column="2" VerticalAlignment="Center" Margin="12,0,0,0" Command="{Binding ChooseLocationCommand}" Content="Change..." />
+                    <Button Grid.Column="2" VerticalAlignment="Center" Margin="12,0,0,0" Command="{Binding ChooseLocationCommand}" Content="{Binding ViewText[command_change]}" />
                 </Grid>
             </StackPanel>
         </ScrollViewer>
diff --git a/tools/installer/TRX_InstallerLib/Controls/InstallSourceControl.xaml b/tools/installer/TRX_InstallerLib/Controls/InstallSourceControl.xaml
index 843e4d23c..e0a90a658 100644
--- a/tools/installer/TRX_InstallerLib/Controls/InstallSourceControl.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/InstallSourceControl.xaml
@@ -50,8 +50,8 @@
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
             <TextBlock Grid.Column="0" Padding="0" Margin="0,-3,12,3" VerticalAlignment="Top" Style="{StaticResource subHeading}" Text="{Binding InstallSource.SourceName}" Height="16" />
-            <TextBlock Grid.Column="1" Padding="0" Margin="0,-3,0,3" HorizontalAlignment="Right" VerticalAlignment="Top" Style="{StaticResource subHeadingFound}" Visibility="{Binding IsAvailable, Converter={StaticResource BoolToVisibleConverter}}" Text="Found" />
-            <TextBlock Grid.Column="1" Padding="0" Margin="0,-3,0,3" HorizontalAlignment="Right" VerticalAlignment="Top" Style="{StaticResource subHeadingNotFound}" Visibility="{Binding IsAvailable, Converter={StaticResource BoolToHiddenConverter}}" Text="Not found" />
+            <TextBlock Grid.Column="1" Padding="0" Margin="0,-3,0,3" HorizontalAlignment="Right" VerticalAlignment="Top" Style="{StaticResource subHeadingFound}" Visibility="{Binding IsAvailable, Converter={StaticResource BoolToVisibleConverter}}" Text="{Binding ViewText[label_found]}" />
+            <TextBlock Grid.Column="1" Padding="0" Margin="0,-3,0,3" HorizontalAlignment="Right" VerticalAlignment="Top" Style="{StaticResource subHeadingNotFound}" Visibility="{Binding IsAvailable, Converter={StaticResource BoolToHiddenConverter}}" Text="{Binding ViewText[label_not_found]}" />
         </Grid>
 
         <Grid Grid.Row="1" Grid.Column="1">
@@ -59,9 +59,12 @@
                 <ColumnDefinition Width="*" />
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
-            <TextBlock Grid.Column="0" VerticalAlignment="Center" Text="{Binding SourceDirectory, TargetNullValue='(no folder selected)'}" TextTrimming="CharacterEllipsis" />
+            <TextBlock Grid.Column="0" VerticalAlignment="Center" Text="{Binding ViewText[label_folder_not_selected]}" Visibility="{Binding IsSourceDirectoryDefined, Converter={StaticResource BoolToHiddenConverter}}" />
+            <TextBlock Grid.Column="0" VerticalAlignment="Center" Text="{Binding SourceDirectory}" TextTrimming="CharacterEllipsis" />
             <TextBlock Grid.Column="1" VerticalAlignment="Center" Margin="6,0,0,0">
-                <Hyperlink Command="{Binding ChooseLocationCommand}" >(change)</Hyperlink>
+                <Hyperlink Command="{Binding ChooseLocationCommand}">
+                    <Run Text="{Binding ViewText[command_change_link]}"/>
+                </Hyperlink>
             </TextBlock>
         </Grid>
     </Grid>
diff --git a/tools/installer/TRX_InstallerLib/Controls/InstallStepControl.xaml b/tools/installer/TRX_InstallerLib/Controls/InstallStepControl.xaml
index 2e43607ed..848bda727 100644
--- a/tools/installer/TRX_InstallerLib/Controls/InstallStepControl.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/InstallStepControl.xaml
@@ -24,9 +24,9 @@
         </Grid.RowDefinitions>
 
         <StackPanel Grid.Row="0" Orientation="Vertical">
-            <TextBlock TextWrapping="Wrap" VerticalAlignment="Center" Margin="0,0,0,12" Style="{StaticResource heading}">
-                Step 3: Installing
-            </TextBlock>
+            <TextBlock
+                Style="{StaticResource heading}"
+                Text="{Binding ViewText[step_install_heading]}"/>
 
             <TextBlock VerticalAlignment="Center" Margin="0,0,0,12" Text="{Binding Description}" />
 
diff --git a/tools/installer/TRX_InstallerLib/Controls/SourceStepControl.xaml b/tools/installer/TRX_InstallerLib/Controls/SourceStepControl.xaml
index 4da8c5eec..92dcb1a74 100644
--- a/tools/installer/TRX_InstallerLib/Controls/SourceStepControl.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/SourceStepControl.xaml
@@ -7,8 +7,8 @@
     xmlns:controls="clr-namespace:TRX_InstallerLib.Controls"
     xmlns:models="clr-namespace:TRX_InstallerLib.Models"
     xmlns:utils="clr-namespace:TRX_InstallerLib.Utils"
-    d:DataContext="{d:DesignInstance Type=models:MainWindowViewModel}"
-    mc:Ignorable="d" 
+    d:DataContext="{d:DesignInstance Type=models:SourceStep}"
+    mc:Ignorable="d"
     d:DesignHeight="450" d:DesignWidth="800">
 
     <UserControl.Resources>
@@ -18,7 +18,7 @@
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </UserControl.Resources>
-    
+
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="Auto" MinHeight="30" />
@@ -29,17 +29,16 @@
             <ColumnDefinition Width="*" />
         </Grid.ColumnDefinitions>
 
-        <TextBlock Grid.Row="0" Grid.Column="0" TextWrapping="Wrap" VerticalAlignment="Center" Margin="0,0,0,12" Style="{StaticResource heading}">
-            Step 1: Choose installation source
-        </TextBlock>
+        <TextBlock
+            Style="{StaticResource heading}"
+            Text="{Binding ViewText[step_source_heading]}"/>
 
-        <TextBlock Grid.Row="1" Grid.Column="0" TextWrapping="Wrap" VerticalAlignment="Center" Margin="0,0,0,10">
-            TR1X requires original game files to run.
-            <LineBreak />
-            Please choose the source location where to install the data files from.
-            <LineBreak />
-            If you're upgrading an existing installation, please choose TR1X.
-        </TextBlock>
+        <TextBlock
+            Grid.Row="1"
+            TextWrapping="Wrap"
+            VerticalAlignment="Center"
+            Margin="0,0,0,10"
+            Text="{Binding ViewText[step_source_content]}"/>
 
         <ListView
             BorderThickness="0"
diff --git a/tools/installer/TRX_InstallerLib/Controls/TRXInstallWindow.xaml b/tools/installer/TRX_InstallerLib/Controls/TRXInstallWindow.xaml
index 289bb6b99..0351a19cb 100644
--- a/tools/installer/TRX_InstallerLib/Controls/TRXInstallWindow.xaml
+++ b/tools/installer/TRX_InstallerLib/Controls/TRXInstallWindow.xaml
@@ -90,17 +90,17 @@
                 <Button
                     Command="{Binding GoToPreviousStepCommand}"
                     Visibility="{Binding IsFinalStep, Converter={StaticResource BoolToHiddenConverter}}"
-                    Content="_Back" />
+                    Content="{Binding ViewText[command_back]}" />
                 <Button
                     Grid.Column="1"
                     Command="{Binding GoToNextStepCommand}"
                     Visibility="{Binding IsFinalStep, Converter={StaticResource BoolToHiddenConverter}}"
-                    Content="_Next" />
+                    Content="{Binding ViewText[command_next]}" />
                 <Button
                     Grid.Column="2"
                     Command="{Binding CloseWindowCommand}"
                     CommandParameter="{Binding RelativeSource={RelativeSource AncestorType=Window}}"
-                    Content="{Binding IsFinalStep, Converter={utils:ConditionalMarkupConverter TrueValue='_Close', FalseValue='_Cancel'}}" />
+                    Content="{Binding IsFinalStep, Converter={utils:ConditionalViewTextConverter TrueValue='command_close', FalseValue='command_cancel'}}" />
             </Grid>
         </Grid>
     </Grid>
diff --git a/tools/installer/TRX_InstallerLib/Installers/InstallExecutor.cs b/tools/installer/TRX_InstallerLib/Installers/InstallExecutor.cs
index ee0dc57a7..e39f33f98 100644
--- a/tools/installer/TRX_InstallerLib/Installers/InstallExecutor.cs
+++ b/tools/installer/TRX_InstallerLib/Installers/InstallExecutor.cs
@@ -52,7 +52,7 @@ public class InstallExecutor
             CreateDesktopShortcut(_settings.TargetDirectory);
         }
 
-        progress.Report(new InstallProgress { Description = "Finished", Finished = true });
+        progress.Report(new InstallProgress { Description = Language.Instance.Controls!["progress_finished"], Finished = true });
     }
 
     protected async Task CopyOriginalGameFiles(string sourceDirectory, string targetDirectory, IProgress<InstallProgress> progress)
@@ -72,11 +72,11 @@ public class InstallExecutor
         {
             CurrentValue = 0,
             MaximumValue = 1,
-            Description = "Opening embedded ZIP",
+            Description = Language.Instance.Controls!["progress_opening_zip"],
         });
 
         using var stream = AssemblyUtils.GetResourceStream("Resources.release.zip", false)
-            ?? throw new ApplicationException($"Could not open embedded ZIP.");
+            ?? throw new ApplicationException(Language.Instance.Controls!["progress_zip_failure"]);
         await InstallUtils.ExtractZip(stream, targetDirectory, progress, overwrite: true);
     }
 
diff --git a/tools/installer/TRX_InstallerLib/Installers/InstallUtils.cs b/tools/installer/TRX_InstallerLib/Installers/InstallUtils.cs
index 99ef117a7..b028b3298 100644
--- a/tools/installer/TRX_InstallerLib/Installers/InstallUtils.cs
+++ b/tools/installer/TRX_InstallerLib/Installers/InstallUtils.cs
@@ -26,7 +26,7 @@ public static class InstallUtils
     {
         try
         {
-            progress.Report(new InstallProgress { Description = "Scanning directory" });
+            progress.Report(new InstallProgress { Description = Language.Instance.Controls!["progress_scanning"] });
             var files = Directory.GetFiles(sourceDirectory, "*", SearchOption.AllDirectories);
             var currentProgress = 0;
             var maximumProgress = files.Length;
@@ -45,7 +45,7 @@ public static class InstallUtils
                     {
                         CurrentValue = currentProgress,
                         MaximumValue = maximumProgress,
-                        Description = $"Copying {relPath}",
+                        Description = string.Format(Language.Instance.Controls!["progress_copying"], relPath),
                     });
                     Directory.CreateDirectory(Path.GetDirectoryName(targetPath)!);
                     await Task.Run(() => File.Copy(sourcePath, targetPath, true));
@@ -56,7 +56,7 @@ public static class InstallUtils
                     {
                         CurrentValue = currentProgress,
                         MaximumValue = maximumProgress,
-                        Description = $"Copying {relPath} - skipped",
+                        Description = string.Format(Language.Instance.Controls!["progress_skipped"], relPath),
                     });
                 }
 
@@ -65,7 +65,7 @@ public static class InstallUtils
         }
         catch (Exception e)
         {
-            throw new ApplicationException($"Could not extract ZIP:\n{e.Message}");
+            throw new ApplicationException(e.Message);
         }
     }
 
@@ -79,14 +79,14 @@ public static class InstallUtils
     public static async Task<byte[]> DownloadFile(string url, IProgress<InstallProgress> progress)
     {
         HttpProgressClient wc = new();
-        progress.Report(new InstallProgress { Description = $"Initializing download of {url}" });
+        progress.Report(new InstallProgress { Description = string.Format(Language.Instance.Controls!["progress_init_download"], url) });
         wc.DownloadProgressChanged += (totalBytesToReceive, bytesReceived) =>
         {
             progress.Report(new InstallProgress
             {
                 CurrentValue = (int)bytesReceived,
                 MaximumValue = (int)totalBytesToReceive,
-                Description = $"Downloading {url}",
+                Description = string.Format(Language.Instance.Controls!["progress_downloading"], url),
             });
         };
         return await wc.DownloadDataTaskAsync(new Uri(url));
@@ -116,7 +116,7 @@ public static class InstallUtils
             using var zip = new ZipArchive(stream);
             progress.Report(new InstallProgress
             {
-                Description = "Scanning ZIP",
+                Description = Language.Instance.Controls!["progress_scanning_zip"],
             });
             var currentProgress = 0;
             var maximumProgress = zip.Entries.Count;
@@ -140,7 +140,7 @@ public static class InstallUtils
                     {
                         CurrentValue = currentProgress,
                         MaximumValue = maximumProgress,
-                        Description = $"Extracting {entry.FullName}",
+                        Description = string.Format(Language.Instance.Controls!["progress_extracting"], entry.FullName),
                     });
 
                     Directory.CreateDirectory(Path.GetDirectoryName(targetPath)!);
@@ -152,7 +152,7 @@ public static class InstallUtils
                     {
                         CurrentValue = currentProgress,
                         MaximumValue = maximumProgress,
-                        Description = $"Extracting {entry.FullName} - skipped",
+                        Description = string.Format(Language.Instance.Controls!["progress_extracting_skipped"], entry.FullName),
                     });
                 }
 
@@ -161,7 +161,7 @@ public static class InstallUtils
         }
         catch (Exception e)
         {
-            throw new ApplicationException($"Could not extract ZIP:\n{e.Message}");
+            throw new ApplicationException(e.Message);
         }
     }
 
diff --git a/tools/installer/TRX_InstallerLib/Models/FinishStep.cs b/tools/installer/TRX_InstallerLib/Models/FinishStep.cs
index 417f1222b..aa2f31dc8 100644
--- a/tools/installer/TRX_InstallerLib/Models/FinishStep.cs
+++ b/tools/installer/TRX_InstallerLib/Models/FinishStep.cs
@@ -2,7 +2,7 @@ using TRX_InstallerLib.Utils;
 
 namespace TRX_InstallerLib.Models;
 
-public class FinishStep : BaseNotifyPropertyChanged, IStep
+public class FinishStep : BaseLanguageViewModel, IStep
 {
     public FinishStep(FinishSettings finishSettings)
     {
diff --git a/tools/installer/TRX_InstallerLib/Models/InstallSettingsStep.cs b/tools/installer/TRX_InstallerLib/Models/InstallSettingsStep.cs
index 161595ced..a9795384d 100644
--- a/tools/installer/TRX_InstallerLib/Models/InstallSettingsStep.cs
+++ b/tools/installer/TRX_InstallerLib/Models/InstallSettingsStep.cs
@@ -3,7 +3,7 @@ using TRX_InstallerLib.Utils;
 
 namespace TRX_InstallerLib.Models;
 
-public class InstallSettingsStep : BaseNotifyPropertyChanged, IStep
+public class InstallSettingsStep : BaseLanguageViewModel, IStep
 {
     public InstallSettingsStep(InstallSettings installSettings)
     {
@@ -24,7 +24,7 @@ public class InstallSettingsStep : BaseNotifyPropertyChanged, IStep
     public ICommand ChooseLocationCommand
     {
         get => _chooseLocationCommand ??= new RelayCommand(ChooseLocation);
-    }    
+    }
 
     private void ChooseLocation()
     {
diff --git a/tools/installer/TRX_InstallerLib/Models/InstallSourceViewModel.cs b/tools/installer/TRX_InstallerLib/Models/InstallSourceViewModel.cs
index 992d6bff2..58115e88d 100644
--- a/tools/installer/TRX_InstallerLib/Models/InstallSourceViewModel.cs
+++ b/tools/installer/TRX_InstallerLib/Models/InstallSourceViewModel.cs
@@ -4,7 +4,7 @@ using TRX_InstallerLib.Utils;
 
 namespace TRX_InstallerLib.Models;
 
-public class InstallSourceViewModel : BaseNotifyPropertyChanged
+public class InstallSourceViewModel : BaseLanguageViewModel
 {
     public InstallSourceViewModel(IInstallSource source)
     {
@@ -38,6 +38,11 @@ public class InstallSourceViewModel : BaseNotifyPropertyChanged
         }
     }
 
+    public bool IsSourceDirectoryDefined
+    {
+        get => SourceDirectory != null;
+    }
+
     public string? SourceDirectory
     {
         get => _sourceDirectory;
@@ -48,6 +53,7 @@ public class InstallSourceViewModel : BaseNotifyPropertyChanged
                 _sourceDirectory = value;
                 NotifyPropertyChanged();
                 NotifyPropertyChanged(nameof(IsAvailable));
+                NotifyPropertyChanged(nameof(IsSourceDirectoryDefined));
             }
         }
     }
diff --git a/tools/installer/TRX_InstallerLib/Models/InstallStep.cs b/tools/installer/TRX_InstallerLib/Models/InstallStep.cs
index 1fcd7a56d..3ebadfbca 100644
--- a/tools/installer/TRX_InstallerLib/Models/InstallStep.cs
+++ b/tools/installer/TRX_InstallerLib/Models/InstallStep.cs
@@ -4,7 +4,7 @@ using TRX_InstallerLib.Utils;
 
 namespace TRX_InstallerLib.Models;
 
-public class InstallStep : BaseNotifyPropertyChanged, IStep
+public class InstallStep : BaseLanguageViewModel, IStep
 {
     public InstallStep(InstallSettings installSettings)
     {
diff --git a/tools/installer/TRX_InstallerLib/Models/Language.cs b/tools/installer/TRX_InstallerLib/Models/Language.cs
index d39ae2880..6b868f897 100644
--- a/tools/installer/TRX_InstallerLib/Models/Language.cs
+++ b/tools/installer/TRX_InstallerLib/Models/Language.cs
@@ -13,7 +13,7 @@ public class Language
     public static Language Instance { get; private set; }
 
     public Dictionary<string, string>? Controls { get; set; }
-    
+
     static Language()
     {
         CultureInfo defaultCulture = CultureInfo.GetCultureInfo(_defaultCulture);
diff --git a/tools/installer/TRX_InstallerLib/Models/SourceStep.cs b/tools/installer/TRX_InstallerLib/Models/SourceStep.cs
index b41b313bc..e47676bb0 100644
--- a/tools/installer/TRX_InstallerLib/Models/SourceStep.cs
+++ b/tools/installer/TRX_InstallerLib/Models/SourceStep.cs
@@ -4,7 +4,7 @@ using TRX_InstallerLib.Utils;
 
 namespace TRX_InstallerLib.Models;
 
-public class SourceStep : BaseNotifyPropertyChanged, IStep
+public class SourceStep : BaseLanguageViewModel, IStep
 {
     public SourceStep(IEnumerable<IInstallSource> installSources)
     {
diff --git a/tools/installer/TRX_InstallerLib/Resources/Lang/en.json b/tools/installer/TRX_InstallerLib/Resources/Lang/en.json
index 040e6b1c9..7fa5dd695 100644
--- a/tools/installer/TRX_InstallerLib/Resources/Lang/en.json
+++ b/tools/installer/TRX_InstallerLib/Resources/Lang/en.json
@@ -1,5 +1,56 @@
 {
   "Controls": {
-    
+    "command_back": "_Back",
+    "command_next": "_Next",
+    "command_close": "_Close",
+    "command_cancel": "_Cancel",
+    "command_change": "C_hange...",
+    "command_change_link": "(change)",
+    "label_found": "Found",
+    "label_not_found": "Not found",
+    "label_already_found": "(already found)",
+    "label_folder_not_selected": "(no folder selected)",
+    "label_destination_folder": "Destination folder:",
+    "label_select_folder": "Choose directory",
+    "step_source_heading": "Step 1: Choose installation source",
+    "step_source_content": "Placeholder",
+    "step_settings_heading": "Step 2: Installation options",
+    "step_settings_music_heading": "Download music tracks",
+    "step_settings_music_content": "Placeholder",
+    "step_settings_expansion_heading": "Placeholder",
+    "step_settings_expansion_content": "Placeholder",
+    "step_settings_expansion_music": "Placeholder",
+    "step_settings_expansion_vanilla": "Placeholder",
+    "step_settings_saves_header": "Import saves",
+    "step_settings_saves_content": "Placeholder",
+    "step_settings_shortcut_heading": "Create desktop shortcut",
+    "step_install_heading": "Step 3: Installing",
+    "step_finish_heading": "Step 4: Done",
+    "step_finish_content": "Installation complete. To configure more advanced features, you can edit the JSON files in the cfg/ directory with a text editor.\n\nHappy raiding :)",
+    "step_finish_open_directory": "Open game directory after closing this window",
+    "step_finish_open_game": "Launch the game after closing this window",
+    "progress_scanning": "Scanning directory",
+    "progress_scanning_source": "Scanning the source directory",
+    "progress_preparing_extract": "Preparing to extract the ISO",
+    "progress_copying": "Copying {0}",
+    "progress_skipped": "Copying {0} - skipped",
+    "progress_init_download": "Initializing download of {0}",
+    "progress_downloading": "Downloading {0}",
+    "progress_opening_zip": "Opening embedded ZIP",
+    "progress_zip_failure": "Could not open embedded ZIP.",
+    "progress_scanning_zip": "Scanning ZIP",
+    "progress_extracting": "Extracting {0}",
+    "progress_extracting_skipped": "Extracting {0} - skipped",
+    "progress_converting_bin": "Converting BIN to ISO",
+    "progress_converting_bin_failure": "Could not convert BIN to ISO: {0}",
+    "progress_converting_iso_failure": "Could not open converted ISO: {0}",
+    "progress_track_write_failure": "Could not write to track file {0}: {1}",
+    "progress_track_seek_failure": "Could not seek to track location: {0}",
+    "progress_bin_failure": "Could not open BIN {0}: {1}",
+    "progress_cue_failure": "Could not read CUE {0}: {1}",
+    "progress_cue_empty": "Could not parse {0}: no tracks were found",
+    "progress_finished": "Finished",
+    "shortcut_signature_failure": "Invalid LNK signature",
+    "shortcut_target_failure": "Unable to determine link target path"
   }
 }
diff --git a/tools/installer/TRX_InstallerLib/Resources/styles.xaml b/tools/installer/TRX_InstallerLib/Resources/styles.xaml
index d59569f5d..aad11bc51 100644
--- a/tools/installer/TRX_InstallerLib/Resources/styles.xaml
+++ b/tools/installer/TRX_InstallerLib/Resources/styles.xaml
@@ -8,6 +8,9 @@
     <Style TargetType="{x:Type Button}" BasedOn="{StaticResource ButtonStyle}" />
     <Style x:Key="heading" TargetType="TextBlock">
         <Setter Property="FontSize" Value="20" />
+        <Setter Property="TextWrapping" Value="Wrap" />
+        <Setter Property="VerticalAlignment" Value="Center" />
+        <Setter Property="Margin" Value="0,0,0,12" />
     </Style>
     <Style x:Key="subHeading" TargetType="TextBlock">
         <Setter Property="FontSize" Value="15" />
diff --git a/tools/installer/TRX_InstallerLib/TRX_InstallerLib.csproj b/tools/installer/TRX_InstallerLib/TRX_InstallerLib.csproj
index 79e08d5a3..238366c20 100644
--- a/tools/installer/TRX_InstallerLib/TRX_InstallerLib.csproj
+++ b/tools/installer/TRX_InstallerLib/TRX_InstallerLib.csproj
@@ -9,9 +9,11 @@
   </PropertyGroup>
   <ItemGroup>
     <None Remove="Resources\const.json" />
+    <None Remove="Resources\Lang\en.json" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Resources\const.json" />
+    <EmbeddedResource Include="Resources\Lang\en.json" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
diff --git a/tools/installer/TRX_InstallerLib/Utils/ConditionalMarkupConverter.cs b/tools/installer/TRX_InstallerLib/Utils/ConditionalMarkupConverter.cs
index 8e5e5cb7c..abf8b02ef 100644
--- a/tools/installer/TRX_InstallerLib/Utils/ConditionalMarkupConverter.cs
+++ b/tools/installer/TRX_InstallerLib/Utils/ConditionalMarkupConverter.cs
@@ -4,12 +4,12 @@ using System.Windows.Markup;
 
 namespace TRX_InstallerLib.Utils;
 
-public sealed class ConditionalMarkupConverter : MarkupExtension, IValueConverter
+public class ConditionalMarkupConverter : MarkupExtension, IValueConverter
 {
     public object FalseValue { get; set; } = new();
     public object TrueValue { get; set; } = new();
 
-    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    public virtual object Convert(object value, Type targetType, object parameter, CultureInfo culture)
     {
         return value is true ? TrueValue : FalseValue;
     }
diff --git a/tools/installer/TRX_InstallerLib/Utils/ConditionalViewTextConverter.cs b/tools/installer/TRX_InstallerLib/Utils/ConditionalViewTextConverter.cs
new file mode 100644
index 000000000..0f47d9443
--- /dev/null
+++ b/tools/installer/TRX_InstallerLib/Utils/ConditionalViewTextConverter.cs
@@ -0,0 +1,13 @@
+using System.Globalization;
+using TRX_InstallerLib.Models;
+
+namespace TRX_InstallerLib.Utils;
+
+public class ConditionalViewTextConverter : ConditionalMarkupConverter
+{
+    public override object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        string result = base.Convert(value, targetType, parameter, culture).ToString()!;
+        return result.Length == 0 ? string.Empty : Language.Instance.Controls![result];
+    }
+}
diff --git a/tools/installer/TRX_InstallerLib/Utils/CueFile.cs b/tools/installer/TRX_InstallerLib/Utils/CueFile.cs
index f4ec01d76..d503d7831 100644
--- a/tools/installer/TRX_InstallerLib/Utils/CueFile.cs
+++ b/tools/installer/TRX_InstallerLib/Utils/CueFile.cs
@@ -1,5 +1,6 @@
 using System.IO;
 using System.Text.RegularExpressions;
+using TRX_InstallerLib.Models;
 
 namespace TRX_InstallerLib.Utils;
 
@@ -19,7 +20,7 @@ public class CueFile
         MatchCollection fileMatches = _fileGroupRegex.Matches(cueFileContent);
         if (fileMatches.Count == 0)
         {
-            throw new ApplicationException($"Could not parse {cueFilePath}: no tracks were found");
+            throw new ApplicationException(string.Format(Language.Instance.Controls!["progress_cue_empty"], cueFilePath));
         }
 
         foreach (Match fileMatch in fileMatches.Cast<Match>())
@@ -29,7 +30,7 @@ public class CueFile
 
             if (matches.Count == 0)
             {
-                throw new ApplicationException($"Could not parse {cueFilePath}: no tracks were found");
+                throw new ApplicationException(string.Format(Language.Instance.Controls!["progress_cue_empty"], cueFilePath));
             }
 
             CueTrack? track = null;
diff --git a/tools/installer/TRX_InstallerLib/Utils/CueTrack.cs b/tools/installer/TRX_InstallerLib/Utils/CueTrack.cs
index 634c3b6c8..649f5f95e 100644
--- a/tools/installer/TRX_InstallerLib/Utils/CueTrack.cs
+++ b/tools/installer/TRX_InstallerLib/Utils/CueTrack.cs
@@ -1,4 +1,5 @@
 using System.IO;
+using TRX_InstallerLib.Models;
 
 namespace TRX_InstallerLib.Utils;
 
@@ -78,7 +79,7 @@ public class CueTrack
                     {
                         MaximumValue = (int)TotalBytes,
                         CurrentValue = (int)convertedBytes,
-                        Description = "Converting BIN to ISO"
+                        Description = Language.Instance.Controls!["progress_converting_bin"],
                     });
                 }
 
@@ -87,14 +88,14 @@ public class CueTrack
         }
         catch (Exception e)
         {
-            throw new ApplicationException(string.Format(" Could not write to track file {0}: {1}", targetPath, e.Message));
+            throw new ApplicationException(string.Format(Language.Instance.Controls!["progress_track_write_failure"], targetPath, e.Message));
         }
 
         progress.Report(new InstallProgress
         {
             MaximumValue = (int)TotalBytes,
             CurrentValue = (int)TotalBytes,
-            Description = "Converting BIN to ISO",
+            Description = Language.Instance.Controls!["progress_converting_bin"],
         });
     }
 
@@ -169,7 +170,7 @@ public class CueTrack
         }
         catch (Exception e)
         {
-            throw new ApplicationException($"Could not open BIN {BinFilePath}: {e.Message}");
+            throw new ApplicationException(string.Format(Language.Instance.Controls!["progress_bin_failure"], BinFilePath, e.Message));
         }
         try
         {
@@ -177,7 +178,7 @@ public class CueTrack
         }
         catch (Exception e)
         {
-            throw new ApplicationException(string.Format("Could not seek to track location: {0}", e.Message));
+            throw new ApplicationException(string.Format(Language.Instance.Controls!["progress_track_seek_failure"], e.Message));
         }
         return fileStream;
     }
diff --git a/tools/installer/TRX_InstallerLib/Utils/FileBrowser.cs b/tools/installer/TRX_InstallerLib/Utils/FileBrowser.cs
index 44e4e65f2..5fdbc0f39 100644
--- a/tools/installer/TRX_InstallerLib/Utils/FileBrowser.cs
+++ b/tools/installer/TRX_InstallerLib/Utils/FileBrowser.cs
@@ -1,3 +1,5 @@
+using TRX_InstallerLib.Models;
+
 namespace TRX_InstallerLib.Utils;
 
 public class FileBrowser
@@ -6,7 +8,7 @@ public class FileBrowser
     {
         using var dlg = new FolderBrowserDialog()
         {
-            Description = "Choose directory",
+            Description = Language.Instance.Controls!["label_select_folder"],
             SelectedPath = initialDirectory,
             ShowNewFolderButton = true,
         };
diff --git a/tools/installer/TRX_InstallerLib/Utils/ShortcutUtils.cs b/tools/installer/TRX_InstallerLib/Utils/ShortcutUtils.cs
index 6f5c3f952..0785f403a 100644
--- a/tools/installer/TRX_InstallerLib/Utils/ShortcutUtils.cs
+++ b/tools/installer/TRX_InstallerLib/Utils/ShortcutUtils.cs
@@ -2,6 +2,7 @@ using System.IO;
 using System.Text;
 
 using System.Text.RegularExpressions;
+using TRX_InstallerLib.Models;
 
 namespace TRX_InstallerLib.Utils;
 
@@ -146,7 +147,7 @@ public static class ShortcutUtils
         var headerSize = br.ReadUInt32();
         if (headerSize != 0x4C)
         {
-            throw new ApplicationException("Invalid LNK signature");
+            throw new ApplicationException(Language.Instance.Controls!["shortcut_signature_failure"]);
         }
 
         br.ReadBytes(0x10); // skip LinkCLSID
@@ -230,6 +231,6 @@ public static class ShortcutUtils
             return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), relativePath);
         }
 
-        throw new ApplicationException("Unable to determine link target path");
+        throw new ApplicationException(Language.Instance.Controls!["shortcut_target_failure"]);
     }
 }