Merge lp:~chasedouglas/unity/touchy-feely.rounding into lp:~unity-team/unity/touchy-feely

[Chase Douglas]

Correct the rounding of pan deltas so it is balanced. This fixes some window drift to the top and left sides of the screen.

Ideally, the rounded off parts should be stored and used the next time, or the deltas should be calculated based on the original starting position of the gesture. However, this should be a reasonable stop-gap solution.

[Mirco Müller (macslow)]

Makes sense and code looks ok. But I can't test it directly with the right hardware myself.

review: Approve

=== modified file 'targets/mutter/plugin.vala'
--- targets/mutter/plugin.vala	2010-08-24 22:26:35 +0000
+++ targets/mutter/plugin.vala	2010-08-26 02:59:39 +0000
@@ -1143,8 +1143,8 @@
                         }
                      else
                         {
-                          start_pan_window.x += Math.floorf (event.pan_event.delta_x);
-                          start_pan_window.y += Math.floorf (event.pan_event.delta_y);
+                          start_pan_window.x += Math.floorf (event.pan_event.delta_x + 0.5f);
+                          start_pan_window.y += Math.floorf (event.pan_event.delta_y + 0.5f);
                           start_pan_window.x = float.max (start_pan_window.x, QUICKLAUNCHER_WIDTH);
                           start_pan_window.y = float.max (start_pan_window.y, PANEL_HEIGHT);