グリッパーが存在しないときは無駄な計算を行わないようにした

diff --git a/Core/Controller.cs b/Core/Controller.cs
index 3f6b2e9..be742ef 100644 (file)
--- a/Core/Controller.cs
+++ b/Core/Controller.cs
@@ -103,13 +103,17 @@ namespace FooEditEngine
         {
             if (this.IsReverseSelect())
             {
-                this.Document.SelectGrippers.BottomRight.MoveByIndex(this.View, this.SelectionStart);
-                this.Document.SelectGrippers.BottomLeft.MoveByIndex(this.View, this.SelectionStart + this.SelectionLength);
+                if (this.Document.SelectGrippers.BottomRight.Enabled)
+                    this.Document.SelectGrippers.BottomRight.MoveByIndex(this.View, this.SelectionStart);
+                if (this.Document.SelectGrippers.BottomLeft.Enabled)
+                    this.Document.SelectGrippers.BottomLeft.MoveByIndex(this.View, this.SelectionStart + this.SelectionLength);
             }
             else
             {
-                this.Document.SelectGrippers.BottomLeft.MoveByIndex(this.View, this.SelectionStart);
-                this.Document.SelectGrippers.BottomRight.MoveByIndex(this.View, this.SelectionStart + this.SelectionLength);
+                if (this.Document.SelectGrippers.BottomLeft.Enabled)
+                    this.Document.SelectGrippers.BottomLeft.MoveByIndex(this.View, this.SelectionStart);
+                if (this.Document.SelectGrippers.BottomRight.Enabled)
+                    this.Document.SelectGrippers.BottomRight.MoveByIndex(this.View, this.SelectionStart + this.SelectionLength);
             }
         }