Changeset 1244 for trunk/sources

Timestamp:

03/03/09 20:50:20 (16 years ago)

Author:

mstoeger

Message:

Fixed MouseMove event bug with some mouse drivers (#503)

File:

• trunk/sources/HeuristicLab.Visualization/LineChart.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Visualization/LineChart.cs

@@ -1 +1 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Drawing;
 using System.Windows.Forms;
@@ -390 +391 @@
     }
 
+    private Point prevMousePosition = Point.Empty;
+
     private void canvas_MouseMove(object sender, MouseEventArgs e) {
-      double x = Transform.ToWorldX(e.X, berni.Viewport, berni.ClippingArea);
-      double y = Transform.ToWorldY(e.Y, berni.Viewport, berni.ClippingArea);
-
-      mousePointer.Rectangle = new RectangleD(x-1, y-1, x+1, y+1);
-      canvasUI.Invalidate();
+      if (prevMousePosition != e.Location) {
+        prevMousePosition = e.Location;
+
+        double x = Transform.ToWorldX(e.X, berni.Viewport, berni.ClippingArea);
+        double y = Transform.ToWorldY(e.Y, berni.Viewport, berni.ClippingArea);
+
+        mousePointer.Rectangle = new RectangleD(x - 1, y - 1, x + 1, y + 1);
+        canvasUI.Invalidate();
+      }
     }