added infomessage dialog implementation

dialog.lua

@@ -0,0 +1,30 @@
+require "widget"
+require "font"
+
+InfoMessage = {
+	face = Font:getFace("infofont", 25)
+}
+
+function InfoMessage:show(text)
+	local dialog = CenterContainer:new({
+		dimen = { w = G_width, h = G_height },
+		FrameContainer:new({
+			margin = 2,
+			HorizontalGroup:new({
+				align = "center",
+				ImageWidget:new({
+					file = "resources/info-i.png"
+				}),
+				Widget:new({
+					dimen = { w = 10, h = 0 }
+				}),
+				TextWidget:new({
+					text = text,
+					face = Font:getFace("cfont", 30)
+				})
+			})
+		})
+	})
+	dialog:paintTo(fb.bb, 0, 0)
+	dialog:free()
+end

font.lua

@@ -25,6 +25,9 @@ Font = {
 		-- font for displaying input content
 		-- we have to use mono here for better distance controlling
 		infont = "droid/DroidSansMono.ttf",
+
+		-- font for info messages
+		infofont = "droid/DroidSans.ttf",
 	},
 
 	fontdir = os.getenv("FONTDIR") or "./fonts",