From 00ed2973b2d71f2769ef2966cdf60017522a834e Mon Sep 17 00:00:00 2001
From: Marius Gedminas <marius@gedmin.as>
Date: Thu, 23 Feb 2012 20:38:01 +0200
Subject: [PATCH] altTab: Fix thumbnail size calculation for some dual-head
 setups

The old formula worked only when the primary monitor was positioned at the
top of the virtual desktop.  When that was not the case, the available
space was miscalculated sometimes resulting in negative numbers, which in
the end produced strangely vertically stretched window thumbnails.

https://bugzilla.gnome.org/show_bug.cgi?id=651130
---
 js/ui/altTab.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/ui/altTab.js b/js/ui/altTab.js
index 85d47924f..25e6db7bb 100644
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@@ -125,7 +125,7 @@ const AltTabPopup = new Lang.Class({
             if (childBox.x2 > primary.x + primary.width - rightPadding)
                 childBox.x2 = primary.x + primary.width - rightPadding;
             childBox.y1 = this._appSwitcher.actor.allocation.y2 + spacing;
-            this._thumbnails.addClones(primary.height - bottomPadding - childBox.y1);
+            this._thumbnails.addClones(primary.y + primary.height - bottomPadding - childBox.y1);
             let [childMinHeight, childNaturalHeight] = this._thumbnails.actor.get_preferred_height(-1);
             childBox.y2 = childBox.y1 + childNaturalHeight;
             this._thumbnails.actor.allocate(childBox, flags);