[gnome-tetravex] Reduce the scope of TileImage.

[Arnaud B. <arnaudb src gnome org>]

commit 392063184d7409a4e702dc49db36b0145e773382
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Wed Sep 18 13:06:41 2019 +0200

    Reduce the scope of TileImage.

 src/puzzle-view.vala | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)
---
diff --git a/src/puzzle-view.vala b/src/puzzle-view.vala
index 0840cbb..ae3694c 100644
--- a/src/puzzle-view.vala
+++ b/src/puzzle-view.vala
@@ -9,37 +9,37 @@
  * license.
  */
 
-private class TileImage : Object
+private class PuzzleView : Gtk.DrawingArea
 {
-    /* Tile being moved */
-    internal Tile tile;
+    private class TileImage : Object
+    {
+        /* Tile being moved */
+        internal Tile tile;
 
-    /* Location of tile */
-    internal double x;
-    internal double y;
+        /* Location of tile */
+        internal double x;
+        internal double y;
 
-    /* Co-ordinates to move from */
-    internal double source_x;
-    internal double source_y;
+        /* Co-ordinates to move from */
+        internal double source_x;
+        internal double source_y;
 
-    /* Time started moving */
-    internal double source_time;
+        /* Time started moving */
+        internal double source_time;
 
-    /* Co-ordinates to target for */
-    internal double target_x;
-    internal double target_y;
+        /* Co-ordinates to target for */
+        internal double target_x;
+        internal double target_y;
 
-    /* Duration of movement */
-    internal double duration;
+        /* Duration of movement */
+        internal double duration;
 
-    internal TileImage (Tile tile)
-    {
-        this.tile = tile;
+        internal TileImage (Tile tile)
+        {
+            this.tile = tile;
+        }
     }
-}
 
-private class PuzzleView : Gtk.DrawingArea
-{
     /* Minimum size of a tile */
     private const int minimum_size = 80;