Fixed another 1 pixel discrepancy

[etc/awesome.git] / layout / cascadetile.lua

diff --git a/layout/cascadetile.lua b/layout/cascadetile.lua
index 734813a2a4405ab352711e2829c101fadaab3175..3baf3e9809b37aa001471037d5b2edd3a5cf0d52 100644 (file)
--- a/layout/cascadetile.lua
+++ b/layout/cascadetile.lua
@@ -57,6 +57,8 @@ function cascadetile.arrange(p)
     -- Borders are factored in.
     wa.height = wa.height - (global_border * 2)
     wa.width = wa.width - (global_border * 2)
+    wa.x = wa.x + global_border
+    wa.y = wa.y + global_border
 
     -- Width of main column?
     local t = tag.selected(p.screen)
@@ -101,8 +103,8 @@ function cascadetile.arrange(p)
         local g = {}
         -- Subtracting the useless_gap width from the work area width here
         -- makes this mwfact calculation work the same as in uselesstile.
-        -- Explicitly rounding is necessary to prevent the rendered size of
-        -- slavewid from changing depending on whether we round up or down.
+        -- Rounding is necessary to prevent the rendered size of slavewid
+        -- from being 1 pixel off when the result is not an integer.
         local mainwid = math.floor((wa.width - useless_gap) * mwfact)
         local slavewid = wa.width - mainwid
 
@@ -121,8 +123,8 @@ function cascadetile.arrange(p)
         end
 
         g.height = wa.height - 2*c.border_width
-        g.x = wa.x + global_border
-        g.y = wa.y + global_border
+        g.x = wa.x
+        g.y = wa.y
         if useless_gap > 0
         then
             -- Reduce width once and move window to the right. Reduce
@@ -139,6 +141,8 @@ function cascadetile.arrange(p)
                 g.width = g.width - useless_gap
             end
         end
+        if g.width < 1 then g.width = 1 end
+        if g.height < 1 then g.height = 1 end
         c:geometry(g)
 
         -- Remaining clients stacked in slave column, new ones on top.
@@ -150,8 +154,8 @@ function cascadetile.arrange(p)
                 g = {}
                 g.width = slavewid - current_offset_x - 2*c.border_width
                 g.height = wa.height - current_offset_y - 2*c.border_width
-                g.x = wa.x + mainwid + (how_many - (i - 1)) * cascadetile.offset_x + global_border
-                g.y = wa.y + (i - 2) * cascadetile.offset_y + global_border
+                g.x = wa.x + mainwid + (how_many - (i - 1)) * cascadetile.offset_x
+                g.y = wa.y + (i - 2) * cascadetile.offset_y
                 if useless_gap > 0
                 then
                     g.width = g.width - 2 * useless_gap
@@ -159,6 +163,8 @@ function cascadetile.arrange(p)
                     g.x = g.x + useless_gap
                     g.y = g.y + useless_gap
                 end
+                if g.width < 1 then g.width = 1 end
+                if g.height < 1 then g.height = 1 end
                 c:geometry(g)
             end
         end