From 8924637b98e3b0352483bcba0347e25b730088d3 Mon Sep 17 00:00:00 2001
From: Ben <ben-wallis@users.noreply.github.com>
Date: Wed, 15 Jul 2015 19:41:31 +0100
Subject: [PATCH] Added hint text when no audio visual block items are added.

---
 Filtration/ViewModels/ItemFilterBlockViewModel.cs | 7 +++++++
 Filtration/Views/ItemFilterBlockView.xaml         | 4 +++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Filtration/ViewModels/ItemFilterBlockViewModel.cs b/Filtration/ViewModels/ItemFilterBlockViewModel.cs
index 03c0428..4975bf1 100644
--- a/Filtration/ViewModels/ItemFilterBlockViewModel.cs
+++ b/Filtration/ViewModels/ItemFilterBlockViewModel.cs
@@ -317,6 +317,12 @@ namespace Filtration.ViewModels
             get { return Block.HasBlockItemOfType<SoundBlockItem>(); }
         }
 
+
+        public bool HasAudioVisualBlockItems
+        {
+            get { return AudioVisualBlockItems.Any(); }
+        }
+
         private void OnSwitchBlockItemsViewCommand()
         {
             AudioVisualBlockItemsGridVisible = !AudioVisualBlockItemsGridVisible;
@@ -459,6 +465,7 @@ namespace Filtration.ViewModels
             RaisePropertyChanged("RegularBlockItems");
             RaisePropertyChanged("SummaryBlockItems");
             RaisePropertyChanged("AudioVisualBlockItems");
+            RaisePropertyChanged("HasAudioVisualBlockItems");
         }
     }
 }
diff --git a/Filtration/Views/ItemFilterBlockView.xaml b/Filtration/Views/ItemFilterBlockView.xaml
index 04c2101..e7cfdac 100644
--- a/Filtration/Views/ItemFilterBlockView.xaml
+++ b/Filtration/Views/ItemFilterBlockView.xaml
@@ -271,7 +271,9 @@
                                     </DataTemplate>
                                 </ItemsControl.ItemTemplate>
                             </ItemsControl>
-
+                            
+                            <TextBlock Grid.Row="1" FontStyle="Italic" Visibility="{Binding HasAudioVisualBlockItems, Converter={StaticResource InverseBooleanVisibilityConverter}}">To change the appearance of this block, add a Text, Background or Border Block Item above.</TextBlock>
+                            
                             <!-- Block Items -->
                             <WrapPanel Grid.Row="1" MaxHeight="200">
                                 <WrapPanel.Resources>