Tweak the animation when the overlay comes up

- Make the time a bit longer (now that we control timing in Tweener
  better it actually takes the time we specify)
- Use easeOutQuad so that we get a "soft landing" into position
- Move the anchor point of the Desktop to NorthEast to reduce jitter

svn path=/trunk/; revision=80

diff --git a/js/ui/overlay.js b/js/ui/overlay.js
index f9152c58f585c4e2d486497de56d2657f138d2b2..5c8a60fea08cb17af0778293630a1518105b84c7 100644 (file)
--- a/js/ui/overlay.js
+++ b/js/ui/overlay.js
@@ -24,7 +24,7 @@ const SIDESHOW_TEXT_COLOR = new Clutter.Color();
 SIDESHOW_TEXT_COLOR.from_pixel(0xffffffff);
 
 // Time for initial animation going into overlay mode
-const ANIMATION_TIME = 0.3;
+const ANIMATION_TIME = 0.5;
 
 // How much to scale the desktop down by in overlay mode
 const DESKTOP_SCALE = 0.75;
@@ -283,13 +283,16 @@ Overlay.prototype = {
        this._windowClones.push(desktop);
        this._group.add_actor(desktop);
 
+       // Since the right side only moves a little bit (the width of padding
+       // we add) it looks less jittery to put the anchor there.
+       desktop.move_anchor_point_from_gravity(Clutter.Gravity.NORTH_EAST);
        Tweener.addTween(desktop,
-                        { x: this._desktopX,
+                        { x: this._desktopX + this._desktopWidth,
                           y: this._desktopY,
                           scale_x: DESKTOP_SCALE,
                           scale_y: DESKTOP_SCALE,
                           time: ANIMATION_TIME,
-                          transition: "linear"
+                          transition: "easeOutQuad"
                         });
 
        desktop.connect("button-press-event",
@@ -356,7 +359,7 @@ Overlay.prototype = {
                           scale_y: scale,
                           time: ANIMATION_TIME,
                           opacity: WINDOW_OPACITY,
-                          transition: "linear"
+                          transition: "easeOutQuad"
                          });
 
        clone.connect("button-press-event",