From a73244e9c75ccdb59f382bd6e0bc11a86b720c4f Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Tue, 27 Jun 2017 13:30:36 +0100
Subject: [PATCH 1/6] update avalonia.

---
 src/AvaloniaEdit/AvaloniaEdit.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/AvaloniaEdit/AvaloniaEdit.csproj b/src/AvaloniaEdit/AvaloniaEdit.csproj
index b6d9a639..e8ae8403 100644
--- a/src/AvaloniaEdit/AvaloniaEdit.csproj
+++ b/src/AvaloniaEdit/AvaloniaEdit.csproj
@@ -38,7 +38,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="1.3.1" />
     <PackageReference Include="System.ValueTuple" Version="4.3.0" />
     <PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
-    <PackageReference Include="Avalonia" Version="0.5.0" />
+    <PackageReference Include="Avalonia" Version="0.5.1-build3323-alpha" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file

From 3dbece3df0b093dafc44bd5717b3932e81a4dca0 Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Thu, 29 Jun 2017 12:36:58 +0100
Subject: [PATCH 2/6] prepare for upcoming scenegraph upgrade in avalonia

bind background of text area (required or mouse clicks wont be caught)
dont render if visual lines are not valid.
---
 src/AvaloniaEdit/AvaloniaEdit.csproj   | 2 +-
 src/AvaloniaEdit/Editing/TextArea.xaml | 4 ++--
 src/AvaloniaEdit/Rendering/TextView.cs | 5 +++++
 src/AvaloniaEdit/TextEditor.cs         | 2 ++
 4 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/AvaloniaEdit/AvaloniaEdit.csproj b/src/AvaloniaEdit/AvaloniaEdit.csproj
index e8ae8403..d533c644 100644
--- a/src/AvaloniaEdit/AvaloniaEdit.csproj
+++ b/src/AvaloniaEdit/AvaloniaEdit.csproj
@@ -38,7 +38,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="1.3.1" />
     <PackageReference Include="System.ValueTuple" Version="4.3.0" />
     <PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
-    <PackageReference Include="Avalonia" Version="0.5.1-build3323-alpha" />
+    <PackageReference Include="Avalonia" Version="0.5.1-build3330-alpha" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/AvaloniaEdit/Editing/TextArea.xaml b/src/AvaloniaEdit/Editing/TextArea.xaml
index 7188f73f..62e747c0 100644
--- a/src/AvaloniaEdit/Editing/TextArea.xaml
+++ b/src/AvaloniaEdit/Editing/TextArea.xaml
@@ -12,7 +12,7 @@
                 Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />-->
         <Setter Property="Template">
             <ControlTemplate>
-                <DockPanel Focusable="False">
+                <DockPanel Focusable="False" Background="{TemplateBinding Background}">
                     <ItemsControl DockPanel.Dock="Left"
                                   Focusable="False"
                                   Items="{TemplateBinding LeftMargins}">
@@ -23,7 +23,7 @@
                         </ItemsControl.ItemsPanel>
                     </ItemsControl>
                     <ContentPresenter Name="PART_CP" Cursor="IBeam"
-                                      Focusable="False" />
+                                      Focusable="False" Background="{TemplateBinding Background}" />
                 </DockPanel>
             </ControlTemplate>
         </Setter>
diff --git a/src/AvaloniaEdit/Rendering/TextView.cs b/src/AvaloniaEdit/Rendering/TextView.cs
index 552a087e..48849401 100644
--- a/src/AvaloniaEdit/Rendering/TextView.cs
+++ b/src/AvaloniaEdit/Rendering/TextView.cs
@@ -1256,6 +1256,11 @@ private void BackgroundRenderer_Removed(IBackgroundRenderer renderer)
         /// <inheritdoc/>
         public override void Render(DrawingContext drawingContext)
         {
+            if(!VisualLinesValid)
+            {
+                return;
+            }
+
             RenderBackground(drawingContext, KnownLayer.Background);
             foreach (var line in _visibleVisualLines)
             {
diff --git a/src/AvaloniaEdit/TextEditor.cs b/src/AvaloniaEdit/TextEditor.cs
index 45bb4930..9dd52cb1 100644
--- a/src/AvaloniaEdit/TextEditor.cs
+++ b/src/AvaloniaEdit/TextEditor.cs
@@ -75,6 +75,8 @@ protected TextEditor(TextArea textArea)
 
             SetValue(OptionsProperty, textArea.Options);
             SetValue(DocumentProperty, new TextDocument());
+
+            textArea[!BackgroundProperty] = this[!BackgroundProperty];
         }
 
         #endregion

From dc54dd22018f22bf9db5649eed96e8bdb179c1e0 Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Thu, 29 Jun 2017 12:38:18 +0100
Subject: [PATCH 3/6] remove redundant code.

---
 src/AvaloniaEdit/TextEditor.xaml | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/AvaloniaEdit/TextEditor.xaml b/src/AvaloniaEdit/TextEditor.xaml
index 82277470..61672cfe 100644
--- a/src/AvaloniaEdit/TextEditor.xaml
+++ b/src/AvaloniaEdit/TextEditor.xaml
@@ -15,14 +15,6 @@
                                   HorizontalContentAlignment="Left"
                                   Padding="{TemplateBinding Padding}" />
                 </Border>
-                <!--<ControlTemplate.Triggers>
-                        <Trigger Property="WordWrap"
-                                 Value="True">
-                            <Setter TargetName="PART_ScrollViewer"
-                                    Property="HorizontalScrollBarVisibility"
-                                    Value="Disabled" />
-                        </Trigger>
-                    </ControlTemplate.Triggers>-->
             </ControlTemplate>
         </Setter>
     </Style>

From 92885a18cec05101633371bef3d905eeb4f5a394 Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Thu, 29 Jun 2017 12:54:48 +0100
Subject: [PATCH 4/6] fix crashing whereby we can reach render loop when visual
 lines is not valid.

---
 src/AvaloniaEdit/Rendering/TextView.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/AvaloniaEdit/Rendering/TextView.cs b/src/AvaloniaEdit/Rendering/TextView.cs
index 48849401..0b1ae2aa 100644
--- a/src/AvaloniaEdit/Rendering/TextView.cs
+++ b/src/AvaloniaEdit/Rendering/TextView.cs
@@ -706,7 +706,6 @@ public void Redraw(ISegment segment, DispatcherPriority redrawPriority = Dispatc
         /// </summary>
         private void ClearVisualLines()
         {
-            _visibleVisualLines = null;
             if (_allVisualLines.Count != 0)
             {
                 foreach (var visualLine in _allVisualLines)
@@ -714,6 +713,8 @@ private void ClearVisualLines()
                     DisposeVisualLine(visualLine);
                 }
                 _allVisualLines.Clear();
+
+                _visibleVisualLines = new ReadOnlyCollection<VisualLine>(_allVisualLines);
             }
         }
 
@@ -723,8 +724,7 @@ private void DisposeVisualLine(VisualLine visualLine)
             {
                 throw new ArgumentException("Cannot dispose visual line because it is in construction!");
             }
-
-            _visibleVisualLines = null;
+            
             visualLine.Dispose();
             RemoveInlineObjects(visualLine);
         }

From 7b1c765dc2c12d7474c002a4bcce298040397647 Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Thu, 29 Jun 2017 13:00:09 +0100
Subject: [PATCH 5/6] background no longer set in xaml via border, bound in
 code.

---
 src/AvaloniaEdit/TextEditor.xaml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/AvaloniaEdit/TextEditor.xaml b/src/AvaloniaEdit/TextEditor.xaml
index 61672cfe..afaa4f42 100644
--- a/src/AvaloniaEdit/TextEditor.xaml
+++ b/src/AvaloniaEdit/TextEditor.xaml
@@ -4,8 +4,7 @@
     <Style Selector="AvalonEdit|TextEditor">
         <Setter Property="Template">
             <ControlTemplate>
-                <Border Background="{TemplateBinding Background}"
-                        BorderBrush="{TemplateBinding BorderBrush}"
+                <Border BorderBrush="{TemplateBinding BorderBrush}"
                         BorderThickness="{TemplateBinding BorderThickness}">
                     <ScrollViewer Focusable="False"
                                   Name="PART_ScrollViewer"

From 1058fd934908e0e44ef85154dea77c16749a2deb Mon Sep 17 00:00:00 2001
From: Unknown <dan@walms.co.uk>
Date: Thu, 29 Jun 2017 15:20:23 +0100
Subject: [PATCH 6/6] fix build script.

---
 build.cake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.cake b/build.cake
index cad372e0..d161c82c 100644
--- a/build.cake
+++ b/build.cake
@@ -3,7 +3,7 @@
 /////////////////////////////////////////////////////////////////////
 
 #addin "nuget:?package=Polly&version=5.0.6"
-#addin "nuget:?package=NuGet.Core&version=2.12.0"
+#addin "nuget:?package=NuGet.Core&version=2.14.0"
 
 //////////////////////////////////////////////////////////////////////
 // TOOLS