cleanup: expand tab to 4 spaces

frontend/ui/widget/verticalscrollbar.lua

@@ -2,37 +2,37 @@ local Widget = require("ui/widget/widget")
 local Geom = require("ui/geometry")
 
 local VerticalScrollBar = Widget:new{
-	enable = true,
-	low = 0,
-	high = 1,
-	
-	width = 6,
-	height = 50,
-	bordersize = 1,
-	bordercolor = 15,
-	radius = 0,
-	rectcolor = 15,
+    enable = true,
+    low = 0,
+    high = 1,
+    
+    width = 6,
+    height = 50,
+    bordersize = 1,
+    bordercolor = 15,
+    radius = 0,
+    rectcolor = 15,
 }
 
 function VerticalScrollBar:getSize()
-	return Geom:new{
-		w = self.width,
-		h = self.height
-	}
+    return Geom:new{
+        w = self.width,
+        h = self.height
+    }
 end
 
 function VerticalScrollBar:set(low, high)
-	self.low = low > 0 and low or 0
-	self.high = high < 1 and high or 1
+    self.low = low > 0 and low or 0
+    self.high = high < 1 and high or 1
 end
 
 function VerticalScrollBar:paintTo(bb, x, y)
-	if not self.enable then return end
-	bb:paintBorder(x, y, self.width, self.height,
-				self.bordersize, self.bordercolor, self.radius)
-	bb:paintRect(x + self.bordersize, y + self.bordersize + self.low*self.height,
-				self.width - 2*self.bordersize,
-				self.height * (self.high - self.low), self.rectcolor)
+    if not self.enable then return end
+    bb:paintBorder(x, y, self.width, self.height,
+                self.bordersize, self.bordercolor, self.radius)
+    bb:paintRect(x + self.bordersize, y + self.bordersize + self.low*self.height,
+                self.width - 2*self.bordersize,
+                self.height * (self.high - self.low), self.rectcolor)
 end
 
 return VerticalScrollBar