Implemented disabled block support

Filtration.ObjectModel/ItemFilterBlock.cs

@@ -13,8 +13,10 @@ namespace Filtration.ObjectModel
         public ItemFilterBlock()
         {
             BlockItems = new ObservableCollection<IItemFilterBlockItem> {new ActionBlockItem(BlockAction.Show)};
+            Enabled = true;
         }
 
+        public bool Enabled { get; set; }
         public string Description { get; set; }
 
         public ItemFilterBlockGroup BlockGroup

Filtration.Tests/Translators/TestItemFilterBlockTranslator.cs

@@ -25,6 +25,36 @@ namespace Filtration.Tests.Translators
             _testUtility = new ItemFilterBlockTranslatorTestUtility();
         }
 
+        [Test]
+        public void TranslateStringToItemFilterBlock_NotDisabled_SetsBlockEnabledTrue()
+        {
+            // Arrange
+            var inputString = "Show" + Environment.NewLine +
+                              "    ItemLevel >= 55";
+
+            // Act
+            var result = _testUtility.Translator.TranslateStringToItemFilterBlock(inputString, null);
+
+            // Assert
+            Assert.AreEqual(true, result.Enabled);
+        }
+
+        [Test]
+        public void TranslateStringToItemFilterBlock_DisabledBlock_SetsBlockEnabledFalse()
+        {
+            // Arrange
+            var inputString = "HideDisabled" + Environment.NewLine +
+                              "    ItemLevel >= 55";
+            
+            // Act
+            var result = _testUtility.Translator.TranslateStringToItemFilterBlock(inputString, null);
+
+            // Assert
+            Assert.AreEqual(2, result.BlockItems.Count);
+            Assert.AreEqual(BlockAction.Hide, result.Action);
+            Assert.AreEqual(false, result.Enabled);
+        }
+
         [Test]
         public void TranslateStringToItemFilterBlock_NoDescriptionComment_ReturnsCorrectObject()
         {
@@ -1264,6 +1294,26 @@ namespace Filtration.Tests.Translators
             Assert.AreEqual(expectedResult, result);
         }
 
+        [Test]
+        public void TranslateItemFilterBlockToString_DisabledBlock_ReturnsCorrectString()
+        {
+            // Arrange
+            var expectedResult = "#Disabled Block Start" + Environment.NewLine +
+                                 "#Show" + Environment.NewLine +
+                                 "#    Width = 4" + Environment.NewLine +
+                                 "#Disabled Block End";
+                                 
+
+            _testUtility.TestBlock.Enabled = false;
+            _testUtility.TestBlock.BlockItems.Add(new WidthBlockItem(FilterPredicateOperator.Equal, 4));
+
+            // Act
+            var result = _testUtility.Translator.TranslateItemFilterBlockToString(_testUtility.TestBlock);
+
+            // Assert
+            Assert.AreEqual(expectedResult, result);
+        }
+
         [Test]
         public void TranslateItemFilterBlockToString_Everything_ReturnsCorrectString()
         {

Filtration.Tests/Translators/TestItemFilterScriptTranslator.cs

@@ -253,6 +253,79 @@ namespace Filtration.Tests.Translators
             Assert.IsNullOrEmpty(firstBlock.Description);
         }
 
+        [Test]
+        public void TranslateStringToItemFilterScript_DisabledBlock_ReturnsCorrectBlockCount()
+        {
+            // Arrange
+            var testInputScript = "Show" + Environment.NewLine +
+                                  "    ItemLevel > 2" + Environment.NewLine +
+                                  "    SetTextColor 255 40 0" + Environment.NewLine +
+                                  Environment.NewLine +
+                                  "#Disabled Block Start" + Environment.NewLine +
+                                  "#Show" + Environment.NewLine +
+                                  "#    ItemLevel > 2" + Environment.NewLine +
+                                  "#    SetTextColor 255 215 0" + Environment.NewLine +
+                                  "#    SetBorderColor 255 105 180" + Environment.NewLine +
+                                  "#    SetFontSize 32" + Environment.NewLine +
+                                  "#Disabled Block End" + Environment.NewLine +
+                                  Environment.NewLine +
+                                  "Show" + Environment.NewLine +
+                                  "   ItemLevel > 20" + Environment.NewLine +
+                                  "    SetTextColor 255 255 0";
+
+
+            var blockTranslator = new ItemFilterBlockTranslator(_testUtility.MockBlockGroupHierarchyBuilder.Object);
+            var translator = new ItemFilterScriptTranslator(blockTranslator,
+                _testUtility.MockBlockGroupHierarchyBuilder.Object);
+
+            // Act
+            var result = translator.TranslateStringToItemFilterScript(testInputScript);
+
+            // Assert
+            Assert.AreEqual(3, result.ItemFilterBlocks.Count);
+        }
+
+        [Test]
+        public void TranslateStringToItemFilterScript_DisabledBlock_ReturnsCorrectBlocks()
+        {
+            // Arrange
+            var testInputScript = "Show" + Environment.NewLine +
+                                  "    ItemLevel > 2" + Environment.NewLine +
+                                  "    SetTextColor 255 40 0" + Environment.NewLine +
+                                  Environment.NewLine +
+                                  "#Disabled Block Start" + Environment.NewLine +
+                                  "#Show" + Environment.NewLine +
+                                  "#    ItemLevel > 2" + Environment.NewLine +
+                                  "#    SetTextColor 255 215 0" + Environment.NewLine +
+                                  "#    SetBorderColor 255 105 180" + Environment.NewLine +
+                                  "#    SetFontSize 32" + Environment.NewLine +
+                                  "#Disabled Block End" + Environment.NewLine +
+                                  Environment.NewLine +
+                                  "Show" + Environment.NewLine +
+                                  "   ItemLevel > 20" + Environment.NewLine +
+                                  "    SetTextColor 255 255 0";
+
+
+            var blockTranslator = new ItemFilterBlockTranslator(_testUtility.MockBlockGroupHierarchyBuilder.Object);
+            var translator = new ItemFilterScriptTranslator(blockTranslator,
+                _testUtility.MockBlockGroupHierarchyBuilder.Object);
+
+            // Act
+            var result = translator.TranslateStringToItemFilterScript(testInputScript);
+
+            // Assert
+            Assert.AreEqual(3, result.ItemFilterBlocks.Count);
+
+            var firstBlock = result.ItemFilterBlocks.First();
+            var secondBlock = result.ItemFilterBlocks.Skip(1).First();
+            var thirdBlock = result.ItemFilterBlocks.Skip(2).First();
+
+            Assert.AreEqual(3, firstBlock.BlockItems.Count);
+            Assert.AreEqual(5, secondBlock.BlockItems.Count);
+            Assert.AreEqual(3, thirdBlock.BlockItems.Count);
+            
+        }
+
         private class ItemFilterScriptTranslatorTestUtility
         {
             public ItemFilterScriptTranslatorTestUtility()

Filtration/Filtration.csproj

@@ -429,6 +429,8 @@
     <Resource Include="Resources\Icons\filtration_icon.png" />
     <Resource Include="Resources\Icons\Add.ico" />
     <Resource Include="Resources\Icons\ThemeComponentDelete.ico" />
+    <Resource Include="Resources\Icons\standby_disabled_icon.png" />
+    <Resource Include="Resources\Icons\standby_enabled_icon.png" />
     <Content Include="Resources\ItemBaseTypes.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>

Filtration/Properties/AssemblyInfo.cs

@@ -50,7 +50,7 @@ using System.Windows;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.6.*")]
+[assembly: AssemblyVersion("0.7.*")]
 
 [assembly: InternalsVisibleTo("Filtration.Tests")]
 [assembly: InternalsVisibleTo("DynamicProxyGenAssembly2")]

Filtration/Translators/ItemFilterBlockTranslator.cs

@@ -28,6 +28,7 @@ namespace Filtration.Translators
         private readonly IBlockGroupHierarchyBuilder _blockGroupHierarchyBuilder;
         private const string Indent = "    ";
         private readonly string _newLine = Environment.NewLine + Indent;
+        private readonly string _disabledNewLine = Environment.NewLine + "#" + Indent;
         private ThemeComponentCollection _masterComponentCollection;
 
         public ItemFilterBlockTranslator(IBlockGroupHierarchyBuilder blockGroupHierarchyBuilder)
@@ -42,6 +43,7 @@ namespace Filtration.Translators
             _masterComponentCollection = masterComponentCollection;
             var block = new ItemFilterBlock();
             var showHideFound = false;
+
             foreach (var line in new LineReader(() => new StringReader(inputString)))
             {
 
@@ -62,6 +64,7 @@ namespace Filtration.Translators
 
                 var adjustedLine = line.Replace("#", " # ");
                 var trimmedLine = adjustedLine.TrimStart(' ');
+
                 var spaceOrEndOfLinePos = trimmedLine.IndexOf(" ", StringComparison.Ordinal) > 0 ? trimmedLine.IndexOf(" ", StringComparison.Ordinal) : trimmedLine.Length;
 
                 var lineOption = trimmedLine.Substring(0, spaceOrEndOfLinePos);
@@ -70,11 +73,25 @@ namespace Filtration.Translators
                     case "Show":
                         showHideFound = true;
                         block.Action = BlockAction.Show;
+                        block.Enabled = true;
                         AddBlockGroupToBlock(block, trimmedLine);
                         break;
                     case "Hide":
                         showHideFound = true;
                         block.Action = BlockAction.Hide;
+                        block.Enabled = true;
+                        AddBlockGroupToBlock(block, trimmedLine);
+                        break;
+                    case "ShowDisabled":
+                        showHideFound = true;
+                        block.Action = BlockAction.Show;
+                        block.Enabled = false;
+                        AddBlockGroupToBlock(block, trimmedLine);
+                        break;
+                    case "HideDisabled":
+                        showHideFound = true;
+                        block.Action = BlockAction.Hide;
+                        block.Enabled = false;
                         AddBlockGroupToBlock(block, trimmedLine);
                         break;
                     case "ItemLevel":
@@ -399,12 +416,17 @@ namespace Filtration.Translators
 
             var outputString = string.Empty;
 
+            if (!block.Enabled)
+            {
+                outputString += "#Disabled Block Start" + Environment.NewLine;
+            }
+
             if (!string.IsNullOrEmpty(block.Description))
             {
                 outputString += "# " + block.Description + Environment.NewLine;
             }
 
-            outputString += block.Action.GetAttributeDescription();
+            outputString += (!block.Enabled ? "#" : string.Empty) + block.Action.GetAttributeDescription();
 
             if (block.BlockGroup != null)
             {
@@ -416,10 +438,15 @@ namespace Filtration.Translators
             {
                 if (blockItem.OutputText != string.Empty)
                 {
-                    outputString += _newLine + blockItem.OutputText;
+                    outputString += (!block.Enabled ? _disabledNewLine : _newLine) + blockItem.OutputText;
                 }
             }
 
+            if (!block.Enabled)
+            {
+                outputString += Environment.NewLine +  "#Disabled Block End";
+            }
+            
             return outputString;
         }
     }

Filtration/Translators/ItemFilterScriptTranslator.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
+using System.Windows.Documents;
 using Castle.Core.Internal;
 using Filtration.ObjectModel;
 using Filtration.Properties;
@@ -28,12 +29,63 @@ namespace Filtration.Translators
             _blockGroupHierarchyBuilder = blockGroupHierarchyBuilder;
         }
 
+        public string PreprocessDisabledBlocks(string inputString)
+        {
+            bool inDisabledBlock = false;
+
+            var lines = Regex.Split(inputString, "\r\n|\r|\n").ToList();
+            var linesToRemove = new List<int>();
+
+            for (var i = 0; i < lines.Count; i++)
+            {
+                if (lines[i].StartsWith("#Disabled Block Start"))
+                {
+                    inDisabledBlock = true;
+                    linesToRemove.Add(i);
+                    continue;
+                }
+                if (inDisabledBlock)
+                {
+                    if (lines[i].StartsWith("#Disabled Block End"))
+                    {
+                        inDisabledBlock = false;
+                        linesToRemove.Add(i);
+                        continue;
+                    }
+
+                    lines[i] = lines[i].TrimStart('#');
+                    var spaceOrEndOfLinePos = lines[i].IndexOf(" ", StringComparison.Ordinal) > 0 ? lines[i].IndexOf(" ", StringComparison.Ordinal) : lines[i].Length;
+                    var lineOption = lines[i].Substring(0, spaceOrEndOfLinePos);
+                    if (lineOption == "Show")
+                    {
+                        lines[i] = lines[i].Replace("Show", "ShowDisabled");
+                    }
+                    else if (lineOption == "Hide")
+                    {
+                        lines[i] = lines[i].Replace("Hide", "HideDisabled");
+                    }
+                }
+            }
+
+            for (var i = linesToRemove.Count - 1; i >= 0; i--)
+            {
+                lines.RemoveAt(linesToRemove[i]);
+            }
+
+            return lines.Aggregate((c, n) => c + Environment.NewLine + n);
+        }
+
         public ItemFilterScript TranslateStringToItemFilterScript(string inputString)
         {
             var script = new ItemFilterScript();
             _blockGroupHierarchyBuilder.Initialise(script.ItemFilterBlockGroups.First());
 
             inputString = inputString.Replace("\t", "");
+            if (inputString.Contains("#Disabled Block Start"))
+            {
+                inputString = PreprocessDisabledBlocks(inputString);
+            }
+
             var conditionBoundaries = IdentifyBlockBoundaries(inputString);
 
             var lines = Regex.Split(inputString, "\r\n|\r|\n");
@@ -85,7 +137,10 @@ namespace Filtration.Translators
                     // as it represents the block description.
                     // currentLine > 2 caters for an edge case where the script description is a single line and the first
                     // block has no description. This prevents the script description from being assigned to the first block's description.
-                    blockBoundaries.AddLast(previousLine.StartsWith("#") && !previousLine.StartsWith("# Section:") && currentLine > 2 ? currentLine - 2 : currentLine - 1);
+                    blockBoundaries.AddLast(previousLine.StartsWith("#") && !previousLine.StartsWith("# Section:") &&
+                                            currentLine > 2
+                        ? currentLine - 2
+                        : currentLine - 1);
                 }
                 previousLine = line;
             }

Filtration/ViewModels/ItemFilterBlockViewModel.cs

@@ -21,6 +21,7 @@ namespace Filtration.ViewModels
         bool IsDirty { get; set; }
         bool IsExpanded { get; set; }
         ItemFilterBlock Block { get; }
+        bool BlockEnabled { get; set; }
         void RefreshBlockPreview();
     }
 
@@ -209,6 +210,20 @@ namespace Filtration.ViewModels
             }
         }
 
+        public bool BlockEnabled
+        {
+            get { return Block.Enabled; }
+            set
+            {
+                if (Block.Enabled != value)
+                {
+                    Block.Enabled = value;
+                    IsDirty = true;
+                    RaisePropertyChanged();
+                }
+            }
+        }
+
         public string BlockDescription
         {
             get

Filtration/ViewModels/ItemFilterScriptViewModel.cs

@@ -38,9 +38,13 @@ namespace Filtration.ViewModels
         void Initialise(ItemFilterScript itemFilterScript, bool newScript);
         void RemoveDirtyFlag();
         void SetDirtyFlag();
+        bool HasSelectedEnabledBlock();
+        bool HasSelectedDisabledBlock();
 
         RelayCommand AddBlockCommand { get; }
         RelayCommand AddSectionCommand { get; }
+        RelayCommand DisableBlockCommand { get; }
+        RelayCommand EnableBlockCommand { get; }
         RelayCommand DeleteBlockCommand { get; }
         RelayCommand MoveBlockUpCommand { get; }
         RelayCommand MoveBlockDownCommand { get; }
@@ -104,6 +108,8 @@ namespace Filtration.ViewModels
             MoveBlockToBottomCommand = new RelayCommand(OnMoveBlockToBottomCommand, () => SelectedBlockViewModel != null);
             AddBlockCommand = new RelayCommand(OnAddBlockCommand);
             AddSectionCommand = new RelayCommand(OnAddSectionCommand, () => SelectedBlockViewModel != null);
+            DisableBlockCommand = new RelayCommand(OnDisableBlockCommand, HasSelectedEnabledBlock);
+            EnableBlockCommand = new RelayCommand(OnEnableBlockCommand, HasSelectedDisabledBlock);
             CopyBlockCommand = new RelayCommand(OnCopyBlockCommand, () => SelectedBlockViewModel != null);
             CopyBlockStyleCommand = new RelayCommand(OnCopyBlockStyleCommand, () => SelectedBlockViewModel != null);
             PasteBlockCommand = new RelayCommand(OnPasteBlockCommand, () => SelectedBlockViewModel != null);
@@ -128,6 +134,8 @@ namespace Filtration.ViewModels
         public RelayCommand MoveBlockToBottomCommand { get; private set; }
         public RelayCommand AddBlockCommand { get; private set; }
         public RelayCommand AddSectionCommand { get; private set; }
+        public RelayCommand EnableBlockCommand { get; private set; }
+        public RelayCommand DisableBlockCommand { get; private set; }
         public RelayCommand CopyBlockCommand { get; private set; }
         public RelayCommand CopyBlockStyleCommand { get; private set; }
         public RelayCommand PasteBlockCommand { get; private set; }
@@ -215,6 +223,21 @@ namespace Filtration.ViewModels
             }
         }
 
+        public bool HasSelectedBlock()
+        {
+            return SelectedBlockViewModel != null;
+        }
+
+        public bool HasSelectedEnabledBlock()
+        {
+            return HasSelectedBlock() && !(SelectedBlockViewModel.Block is ItemFilterSection) && SelectedBlockViewModel.BlockEnabled;
+        }
+
+        public bool HasSelectedDisabledBlock()
+        {
+            return HasSelectedBlock() && !(SelectedBlockViewModel.Block is ItemFilterSection) && !SelectedBlockViewModel.BlockEnabled;
+        }
+
         public IItemFilterBlockViewModel SelectedBlockViewModel
         {
             get { return _selectedBlockViewModel; }
@@ -767,5 +790,25 @@ namespace Filtration.ViewModels
             }
             SelectedBlockViewModel = null;
         }
+
+        private void OnDisableBlockCommand()
+        {
+            DisableBlock(SelectedBlockViewModel);
+        }
+
+        private void DisableBlock(IItemFilterBlockViewModel targetBlockViewModel)
+        {
+            targetBlockViewModel.BlockEnabled = false;
+        }
+
+        private void OnEnableBlockCommand()
+        {
+            EnableBlock(SelectedBlockViewModel);
+        }
+
+        private void EnableBlock(IItemFilterBlockViewModel targetBlockViewModel)
+        {
+            targetBlockViewModel.BlockEnabled = true;
+        }
     }
 }

Filtration/ViewModels/MainWindowViewModel.cs

@@ -96,7 +96,10 @@ namespace Filtration.ViewModels
             AddBlockCommand = new RelayCommand(OnAddBlockCommand, () => _activeDocumentIsScript);
             AddSectionCommand = new RelayCommand(OnAddSectionCommand, () => _activeDocumentIsScript);
             DeleteBlockCommand = new RelayCommand(OnDeleteBlockCommand, () => _activeDocumentIsScript && ActiveScriptHasSelectedBlock);
-
+            DisableBlockCommand = new RelayCommand(OnDisableBlockCommand,
+                () => _activeDocumentIsScript && ActiveScriptHasSelectedEnabledBlock);
+            EnableBlockCommand = new RelayCommand(OnEnableBlockCommand,
+                () => _activeDocumentIsScript && ActiveScriptHasSelectedDisabledBlock);
             OpenAboutWindowCommand = new RelayCommand(OnOpenAboutWindowCommand);
             ReplaceColorsCommand = new RelayCommand(OnReplaceColorsCommand, () => _activeDocumentIsScript);
 
@@ -198,6 +201,8 @@ namespace Filtration.ViewModels
         public RelayCommand AddBlockCommand { get; private set; }
         public RelayCommand AddSectionCommand { get; private set; }
         public RelayCommand DeleteBlockCommand { get; private set; }
+        public RelayCommand DisableBlockCommand { get; private set; }
+        public RelayCommand EnableBlockCommand { get; private set; }
 
         public RelayCommand MoveBlockUpCommand { get; private set; }
         public RelayCommand MoveBlockDownCommand { get; private set; }
@@ -306,6 +311,16 @@ namespace Filtration.ViewModels
             get { return AvalonDockWorkspaceViewModel.ActiveScriptViewModel.SelectedBlockViewModel != null; }
         }
 
+        public bool ActiveScriptHasSelectedEnabledBlock
+        {
+            get { return AvalonDockWorkspaceViewModel.ActiveScriptViewModel.HasSelectedEnabledBlock(); }
+        }
+
+        public bool ActiveScriptHasSelectedDisabledBlock
+        {
+            get { return AvalonDockWorkspaceViewModel.ActiveScriptViewModel.HasSelectedDisabledBlock(); }
+        }
+        
         public bool ActiveThemeIsEditable
         {
             get { return AvalonDockWorkspaceViewModel.ActiveThemeViewModel.IsMasterTheme; }
@@ -580,6 +595,16 @@ namespace Filtration.ViewModels
             _avalonDockWorkspaceViewModel.ActiveScriptViewModel.DeleteBlockCommand.Execute(null);
         }
 
+        private void OnDisableBlockCommand()
+        {
+            _avalonDockWorkspaceViewModel.ActiveScriptViewModel.DisableBlockCommand.Execute(null);
+        }
+
+        private void OnEnableBlockCommand()
+        {
+            _avalonDockWorkspaceViewModel.ActiveScriptViewModel.EnableBlockCommand.Execute(null);
+        }
+
         private void OnExpandAllBlocksCommand()
         {
             _avalonDockWorkspaceViewModel.ActiveScriptViewModel.ExpandAllBlocksCommand.Execute(null);

Filtration/Views/IconsDictionary.xaml

@@ -31,4 +31,6 @@
     <Image Source="/Filtration;component/Resources/Icons/filtration_icon.png" x:Key="FiltrationIcon" x:Shared="False" />
     <Image Source="/Filtration;component/Resources/Icons/Add.ico" x:Key="AddIcon" x:Shared="False" />
     <Image Source="/Filtration;component/Resources/Icons/ThemeComponentDelete.ico" x:Key="ThemeComponentDeleteIcon" x:Shared="False" />
+    <Image Source="/Filtration;component/Resources/Icons/standby_enabled_icon.png" x:Key="StandbyEnabledIcon" x:Shared="False" />
+    <Image Source="/Filtration;component/Resources/Icons/standby_disabled_icon.png" x:Key="StandbyDisabledIcon" x:Shared="False" />
 </ResourceDictionary>

Filtration/Views/ItemFilterBlockView.xaml

@@ -41,6 +41,11 @@
         </ResourceDictionary>
     </UserControl.Resources>
     <Grid x:Name="TopLevelGrid">
+        <Grid x:Name="DisabledBlockOverlay" IsHitTestVisible="False" Panel.ZIndex="1000" Visibility="{Binding BlockEnabled, Converter={StaticResource InverseBooleanVisibilityConverter}}">
+            <Grid.Background>
+                <SolidColorBrush Color="Gray" Opacity=".5" />
+            </Grid.Background>
+        </Grid>
         <Border BorderThickness="1" BorderBrush="SlateGray" CornerRadius="2" Background="White">
             <Grid>
                 <Grid.ColumnDefinitions>
@@ -62,8 +67,8 @@
                     <Expander.ContextMenu>
                         <ContextMenu>
                             <ContextMenu.Items>
-                                <MenuItem Header="Copy" Command="{Binding CopyBlockCommand}" Icon="{StaticResource CopyIcon}" />
+                                <MenuItem Header="Copy Block" Command="{Binding CopyBlockCommand}" Icon="{StaticResource CopyIcon}" />
-                                <MenuItem Header="Paste" Command="{Binding PasteBlockCommand}" Icon="{StaticResource PasteIcon}" />
+                                <MenuItem Header="Paste Block" Command="{Binding PasteBlockCommand}" Icon="{StaticResource PasteIcon}" />
                                 <Separator />
                                 <MenuItem Header="Block Style">
                                     <MenuItem Header="Copy Block Style" Command="{Binding CopyBlockStyleCommand}" Icon="{StaticResource CopyIcon}" />
@@ -89,6 +94,7 @@
                             <Grid.ColumnDefinitions>
                                 <ColumnDefinition Width="*" />
                                 <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
                             </Grid.ColumnDefinitions>
                             <!-- BlockItems Summary Panel -->
                             <StackPanel Grid.Row="0" Grid.Column="0" VerticalAlignment="Center">
@@ -123,7 +129,7 @@
                             </StackPanel>
                            
                             <!-- Item Preview Box -->
-                            <WrapPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
+                            <WrapPanel Grid.Row="0" Grid.Column="2" VerticalAlignment="Center">
                              <Button Command="{Binding PlaySoundCommand}"
                                         Width="25"
                                         Height="25"
@@ -160,6 +166,10 @@
                                 <RowDefinition />
                                 <RowDefinition />
                             </Grid.RowDefinitions>
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*" />
+                                <ColumnDefinition Width="Auto" />
+                            </Grid.ColumnDefinitions>
                             <TextBlock Grid.Row="1" VerticalAlignment="Bottom" HorizontalAlignment="Right">
                                 <Hyperlink Command="{Binding SwitchBlockItemsViewCommand}">
                                     Switch to Appearance Block Items
@@ -167,7 +177,7 @@
                             </TextBlock>
                         
                             <!-- Add Block Item Links -->
-                            <ItemsControl ItemsSource="{Binding BlockItemTypesAvailable}" Grid.Row="0" Margin="0,0,0,10">
+                            <ItemsControl Grid.Column="0" ItemsSource="{Binding BlockItemTypesAvailable}" Grid.Row="0" Margin="0,0,0,10">
                                 <ItemsControl.ItemsPanel>
                                     <ItemsPanelTemplate>
                                         <WrapPanel></WrapPanel>
@@ -184,8 +194,34 @@
                                 </ItemsControl.ItemTemplate>
                             </ItemsControl>
 
+                            <!-- Enable/Disable Block Button -->
+                            <ToggleButton Grid.Row="0"
+                                          Grid.Column="1"
+                                          Style="{StaticResource ChromelessToggleButton}" 
+                                          IsChecked="{Binding BlockEnabled}"
+                                          Margin="0,0,5,0"
+                                          ToolTip="Enable/Disable Block"
+                                          Cursor="Hand"
+                                          Width="25"
+                                          Height="25">
+                                <Image RenderOptions.BitmapScalingMode="HighQuality">
+                                    <Image.Style>
+                                        <Style TargetType="{x:Type Image}">
+                                            <Style.Triggers>
+                                                <DataTrigger Binding="{Binding BlockEnabled}" Value="true">
+                                                    <Setter Property="Source" Value="/Filtration;component/Resources/Icons/standby_enabled_icon.png"/>
+                                                </DataTrigger>
+                                                <DataTrigger Binding="{Binding BlockEnabled}" Value="false">
+                                                    <Setter Property="Source" Value="/Filtration;component/Resources/Icons/standby_disabled_icon.png"/>
+                                                </DataTrigger>
+                                            </Style.Triggers>
+                                        </Style>
+                                    </Image.Style>
+                                </Image>
+                            </ToggleButton>
+                            
                             <!-- Block Items -->
-                            <WrapPanel Grid.Row="1" MaxHeight="200">
+                            <WrapPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="1" MaxHeight="200">
                                 <WrapPanel.Resources>
                                     <CollectionViewSource Source="{Binding RegularBlockItems}" x:Key="BlockItemsCollectionViewSource">
                                         <CollectionViewSource.SortDescriptions>

Filtration/Views/MainWindow.xaml

@@ -85,6 +85,8 @@
                     <fluent:Button Header="Move Up" Command="{Binding MoveBlockUpCommand}"  SizeDefinition="Middle" Icon="{StaticResource MoveUpIcon}" />
                     <fluent:Button Header="Move Down" Command="{Binding MoveBlockDownCommand}" SizeDefinition="Middle" Icon="{StaticResource MoveDownIcon}" />
                     <fluent:Button Header="Move To Bottom" Command="{Binding MoveBlockToBottomCommand}"  SizeDefinition="Middle" Icon="{StaticResource MoveToBottomIcon}" />
+                    <fluent:Button Header="Enable Block" Command="{Binding EnableBlockCommand}"  SizeDefinition="Middle" Icon="{StaticResource StandbyEnabledIcon}" />
+                    <fluent:Button Header="Disable Block" Command="{Binding DisableBlockCommand}"  SizeDefinition="Middle" Icon="{StaticResource StandbyDisabledIcon}" />
                 </fluent:RibbonGroupBox>
                 <fluent:RibbonGroupBox Header="Expand / Collapse">
                     <fluent:Button Header="Expand All" Command="{Binding ExpandAllBlocksCommand}" SizeDefinition="Middle" Icon="{StaticResource ExpandIcon}" />