From f7e395b76baffb654b0527cb5aa96de8defbd577 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Fri, 3 Jun 2016 18:16:40 +0400
Subject: [PATCH] override cursor within image preview pane.

---
 GUI/DragScroll.cs     | 24 ++++++++++++++++++++++--
 GUI/GARbro.GUI.csproj |  6 ++++++
 GUI/MainWindow.xaml   |  3 ++-
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/GUI/DragScroll.cs b/GUI/DragScroll.cs
index 252045ca..ce13fefe 100644
--- a/GUI/DragScroll.cs
+++ b/GUI/DragScroll.cs
@@ -24,6 +24,16 @@ namespace GARbro.GUI
         {
             obj.SetValue(IsEnabledProperty, value);
         }
+        
+        public static Cursor GetDraggingCursor (UIElement e)
+        {
+            return (Cursor)e.GetValue (DraggingCursorProperty);
+        }
+
+        public static void SetDraggingCursor (UIElement e, Cursor value)
+        {
+            e.SetValue (DraggingCursorProperty, value);
+        }
 
         public bool IsEnabled
         {
@@ -31,8 +41,16 @@ namespace GARbro.GUI
             set { SetValue(IsEnabledProperty, value); }
         }
 
+        public Cursor DraggingCursor
+        {
+            get { return (Cursor)GetValue (DraggingCursorProperty); }
+            set { SetValue (DraggingCursorProperty, value); }
+        }
+
         public static readonly DependencyProperty IsEnabledProperty =
             DependencyProperty.RegisterAttached("IsEnabled", typeof(bool), typeof(TouchScrolling), new UIPropertyMetadata(false, IsEnabledChanged));
+        public static readonly DependencyProperty DraggingCursorProperty =
+            DependencyProperty.RegisterAttached("DraggingCursor", typeof(Cursor), typeof(TouchScrolling));
 
         static Dictionary<object, MouseCapture> _captures = new Dictionary<object, MouseCapture>();
 
@@ -109,7 +127,7 @@ namespace GARbro.GUI
             if (target == null) return;
 
             target.ReleaseMouseCapture();
-            target.Cursor = Cursors.Arrow;
+            Mouse.OverrideCursor = null;
         }
 
         static void target_PreviewMouseMove(object sender, MouseEventArgs e)
@@ -138,7 +156,9 @@ namespace GARbro.GUI
             if (System.Math.Abs(dy) > 5 || System.Math.Abs(dx) > 5)
             {
                 target.CaptureMouse();
-                target.Cursor = Cursors.SizeAll;
+                var cursor = target.GetValue (DraggingCursorProperty) as Cursor;
+                if (cursor != null)
+                    Mouse.OverrideCursor = cursor;
             }
             scroller.ScrollToHorizontalOffset(capture.HorizontalOffset - dx);
             scroller.ScrollToVerticalOffset(capture.VerticalOffset - dy);
diff --git a/GUI/GARbro.GUI.csproj b/GUI/GARbro.GUI.csproj
index 8b8e189f..2ffb9129 100644
--- a/GUI/GARbro.GUI.csproj
+++ b/GUI/GARbro.GUI.csproj
@@ -271,6 +271,12 @@
       <Install>false</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Images\Cursors\grab.cur" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Images\Cursors\grabbing.cur" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PreBuildEvent>perl "$(SolutionDir)inc-revision.pl" "$(ProjectPath)" $(ConfigurationName) "$(SolutionDir)\"
diff --git a/GUI/MainWindow.xaml b/GUI/MainWindow.xaml
index 64850936..0db0295e 100644
--- a/GUI/MainWindow.xaml
+++ b/GUI/MainWindow.xaml
@@ -343,7 +343,8 @@
             <Grid Grid.Column="2" Name="PreviewPane" SnapsToDevicePixels="True">
                 <ScrollViewer Name="ImageView" Background="LightGray" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                     <Image Name="ImageCanvas" Stretch="None" UseLayoutRounding="True" SnapsToDevicePixels="True"
-                           local:TouchScrolling.IsEnabled="True" RenderOptions.BitmapScalingMode="NearestNeighbor"/>
+                           local:TouchScrolling.IsEnabled="True" RenderOptions.BitmapScalingMode="NearestNeighbor"
+                           Cursor="Images/Cursors/grab.cur" local:TouchScrolling.DraggingCursor="Images/Cursors/grabbing.cur" />
                 </ScrollViewer>
                 <jv:TextViewer x:Name="TextView" Visibility="Collapsed" BorderThickness="1,0,0,0" BorderBrush="Black"/>
             </Grid>