Help section of Filter Studio

CavernSamples/FilterStudio/App.config

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <configSections>
+        <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
+            <section name="FilterStudio.Resources.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
+        </sectionGroup>
+    </configSections>
+    <userSettings>
+        <FilterStudio.Resources.Settings>
+            <setting name="showInstructions" serializeAs="String">
+                <value>True</value>
+            </setting>
+        </FilterStudio.Resources.Settings>
+    </userSettings>
+</configuration>

CavernSamples/FilterStudio/FilterStudio.csproj

@@ -36,4 +36,17 @@
 	  <ProjectReference Include="..\..\Cavern.QuickEQ.Format\Cavern.QuickEQ.Format.csproj" />
 	  <ProjectReference Include="..\Cavern.WPF\Cavern.WPF.csproj" />
 	</ItemGroup>
+	<ItemGroup>
+	  <Compile Update="Resources\Settings.Designer.cs">
+	    <DesignTimeSharedInput>True</DesignTimeSharedInput>
+	    <AutoGen>True</AutoGen>
+	    <DependentUpon>Settings.settings</DependentUpon>
+	  </Compile>
+	</ItemGroup>
+	<ItemGroup>
+	  <None Update="Resources\Settings.settings">
+	    <Generator>SettingsSingleFileGenerator</Generator>
+	    <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+	  </None>
+	</ItemGroup>
 </Project>

CavernSamples/FilterStudio/MainWindow.xaml

@@ -31,6 +31,10 @@
                 <MenuItem Header="{StaticResource OpRec}" Click="Recenter"/>
                 <MenuItem Header="{StaticResource OpDel}" Click="DeleteNode"/>
             </MenuItem>
+            <MenuItem Header="{StaticResource MHelp}" Style="{StaticResource RootMenuItem}">
+                <MenuItem Name="showInstructions" IsCheckable="True" Header="{StaticResource OpShI}" Click="SetInstructions"/>
+                <MenuItem Header="{StaticResource OpAbo}" Click="About"/>
+            </MenuItem>
         </Menu>
         <DockPanel DockPanel.Dock="Right" Width="250">
             <TextBlock Name="selectedNode" DockPanel.Dock="Top" Style="{StaticResource Header}" Margin="5" Text="{StaticResource NNode}"/>
@@ -40,8 +44,8 @@
             <ScrollViewer VerticalScrollBarVisibility="Disabled">
                 <DockPanel Name="graph" PreviewMouseUp="GraphClick"/>
             </ScrollViewer>
-            <TextBlock Margin="10,0,0,30" HorizontalAlignment="Left" VerticalAlignment="Bottom" Text="{StaticResource Help1}"/>
-            <TextBlock Margin="10,0,0,10" HorizontalAlignment="Left" VerticalAlignment="Bottom" Text="{StaticResource Help2}"/>
+            <TextBlock Name="help1" Margin="10,0,0,30" HorizontalAlignment="Left" VerticalAlignment="Bottom" Text="{StaticResource Help1}"/>
+            <TextBlock Name="help2" Margin="10,0,0,10" HorizontalAlignment="Left" VerticalAlignment="Bottom" Text="{StaticResource Help2}"/>
         </Grid>
     </DockPanel>
 </Window>

CavernSamples/FilterStudio/MainWindow.xaml.cs

@@ -12,9 +12,11 @@
 using Cavern.Filters;
 using Cavern.Filters.Utilities;
 using Cavern.Format.ConfigurationFile;
+using Cavern.Utilities;
 using VoidX.WPF;
 
 using FilterStudio.Graphs;
+using FilterStudio.Resources;
 
 namespace FilterStudio {
     /// <summary>
@@ -41,20 +43,40 @@ public partial class MainWindow : Window {
         /// </summary>
         (string name, FilterGraphNode root)[] rootNodes;
 
+        /// <summary>
+        /// Any setting has changed in the application and it should be saved.
+        /// </summary>
+        bool settingChanged;
+
         /// <summary>
         /// Main window of Cavern Filter Studio.
         /// </summary>
         public MainWindow() {
             InitializeComponent();
             viewer = new GraphViewer();
             viewer.BindToPanel(graph);
+
+            showInstructions.IsChecked = Settings.Default.showInstructions;
+            SetInstructions(null, null);
+            Settings.Default.SettingChanging += (_, e) => settingChanged |= !Settings.Default[e.SettingName].Equals(e.NewValue);
         }
 
         /// <summary>
         /// Displays an error message.
         /// </summary>
         static void Error(string message) => MessageBox.Show(message, (string)language["Error"], MessageBoxButton.OK, MessageBoxImage.Error);
 
+        /// <summary>
+        /// Save persistent settings on quit.
+        /// </summary>
+        protected override void OnClosed(EventArgs e) {
+            Settings.Default.showInstructions = showInstructions.IsChecked;
+            if (settingChanged) {
+                Settings.Default.Save();
+            }
+            base.OnClosed(e);
+        }
+
         /// <summary>
         /// When selecting a <paramref name="node"/>, open it for modification.
         /// </summary>
@@ -122,6 +144,20 @@ void LoadConfiguration(object _, RoutedEventArgs e) {
             }
         }
 
+        /// <summary>
+        /// Handle when the instructions are enabled or disabled.
+        /// </summary>
+        void SetInstructions(object _, RoutedEventArgs e) {
+            Visibility instructions = showInstructions.IsChecked ? Visibility.Visible : Visibility.Hidden;
+            help1.Visibility = instructions;
+            help2.Visibility = instructions;
+        }
+
+        /// <summary>
+        /// Shows information about the used Cavern library and its version.
+        /// </summary>
+        void About(object _, RoutedEventArgs e) => MessageBox.Show(Listener.Info, (string)language["HAbou"]);
+
         /// <summary>
         /// When the user lost the graph because it was moved outside the screen, this function redisplays it in the center of the frame.
         /// </summary>

CavernSamples/FilterStudio/Resources/MainWindowStrings.hu-HU.xaml

@@ -16,6 +16,10 @@
     <system:String x:Key="OpDel">_Kiválasztott szűrő törlése</system:String>
     <system:String x:Key="CoDel">_Törlés</system:String>
 
+    <system:String x:Key="MHelp">Sú_gó</system:String>
+    <system:String x:Key="OpShI">_Segítség mutatása</system:String>
+    <system:String x:Key="OpAbo">_Névjegy</system:String>
+
     <system:String x:Key="Help1">Jobb klikkelj egy szűrőre, hogy új szűrőútvonalat indíts belőle.</system:String>
     <system:String x:Key="Help2">Jobb klikkelj egy nyílra, hogy új szűrőt adj hozzá két szűrő közé.</system:String>
 
@@ -27,4 +31,6 @@
     <system:String x:Key="NFInp">Egy csatorna bemenete nem törölhető.</system:String>
     <system:String x:Key="NFOut">Egy csatorna kimenete nem törölhető.</system:String>
     <system:String x:Key="NLabe">Új címke</system:String>
+
+    <system:String x:Key="HAbou">Névjegy</system:String>
 </ResourceDictionary>

CavernSamples/FilterStudio/Resources/MainWindowStrings.xaml

@@ -16,6 +16,10 @@
     <system:String x:Key="OpDel">_Delete selected filter</system:String>
     <system:String x:Key="CoDel">_Delete</system:String>
 
+    <system:String x:Key="MHelp">_Help</system:String>
+    <system:String x:Key="OpShI">_Show instructions</system:String>
+    <system:String x:Key="OpAbo">_About</system:String>
+
     <system:String x:Key="Help1">Right click a filter to start a new path from it with a new filter.</system:String>
     <system:String x:Key="Help2">Right click an arrow to add a filter between two filters.</system:String>
 
@@ -27,4 +31,6 @@
     <system:String x:Key="NFInp">The input of a channel can't be deleted.</system:String>
     <system:String x:Key="NFOut">The output of a channel can't be deleted.</system:String>
     <system:String x:Key="NLabe">New label</system:String>
+
+    <system:String x:Key="HAbou">About</system:String>
 </ResourceDictionary>

CavernSamples/FilterStudio/Resources/Settings.settings

@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="FilterStudio.Resources" GeneratedClassName="Settings">
+  <Profiles />
+  <Settings>
+    <Setting Name="showInstructions" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
+  </Settings>
+</SettingsFile>