a better looking progress bar widget

frontend/ui/widget.lua

@@ -430,7 +430,14 @@ ProgressWidget shows a progress bar
 ProgressWidget = Widget:new{
 	width = nil,
 	height = nil,
-	pecentage = nil,
+	margin_h = 3,
+	margin_v = 1,
+	radius = 2,
+	bordersize = 1,
+	bordercolor = 15,
+	bgcolor = 0,
+	rectcolor = 10,
+	percentage = nil,
 }
 
 function ProgressWidget:getSize()
@@ -438,8 +445,15 @@ function ProgressWidget:getSize()
 end
 
 function ProgressWidget:paintTo(bb, x, y)
-	local size = self:getSize()
-	bb:progressBar(x, y, self.width, self.height, size.w, size.h, 2, 2, self.percentage, 15)
+	local my_size = self:getSize()
+	bb:paintRoundedRect(x, y, my_size.w, my_size.h, self.bgcolor, self.radius)
+	bb:paintBorder(x, y, my_size.w, my_size.h, self.bordersize, self.bordercolor, self.radius)
+	bb:paintRect(x+self.margin_h, y+self.margin_v+self.bordersize, 
+				(my_size.w-2*self.margin_h)*self.percentage, (my_size.h-2*(self.margin_v+self.bordersize)), self.rectcolor)
+end
+
+function ProgressWidget:setPercentage(percentage)
+	self.percentage = percentage
 end
 
 --[[