ttip: added a separate window definition for floating tooltips

The design is based on the 'menu' style window, with a tint applied.

data/gui/default/widget/window_tooltip_large.cfg

@@ -44,3 +44,105 @@
 
 [/window_definition]
 
+[window_definition]
+
+	id = tooltip
+	description = "The window to show a large tooltip."
+
+	[resolution]
+
+		left_border = 10
+		right_border = 10
+		top_border = 10
+		bottom_border = 10
+
+		[background]
+
+			[draw]
+
+				[image]
+					name = "dialogs/menu-border-topleft.png"
+				[/image]
+
+				[image]
+					x = 2
+					y = 0
+					w = "(if(width < 4, 0, width - 4))"
+					resize_mode = "stretch"
+					name = "dialogs/menu-border-top.png"
+				[/image]
+
+				[image]
+					x = "(width - 2)"
+					y = 0
+					name = "dialogs/menu-border-topright.png"
+				[/image]
+
+				[image]
+					x = "(width - 2)"
+					y = 2
+					h = "(if(height < 4, 0, height - 4))"
+					resize_mode = "stretch"
+					name = "dialogs/menu-border-right.png"
+				[/image]
+
+				[image]
+					x = "(width - 2)"
+					y = "(height - 2)"
+					name = "dialogs/menu-border-botright.png"
+				[/image]
+
+				[image]
+					x = 2
+					y = "(height - 2)"
+					w = "(if(width < 4, 0, width - 4))"
+					resize_mode = "stretch"
+					name = "dialogs/menu-border-bottom.png"
+				[/image]
+
+				[image]
+					x = 0
+					y = "(height - 2)"
+					name = "dialogs/menu-border-botleft.png"
+				[/image]
+
+				[image]
+					x = 0
+					y = 2
+					h = "(if(height < 4, 0, height - 4))"
+					resize_mode = "stretch"
+					name = "dialogs/menu-border-left.png"
+				[/image]
+
+				[image]
+					x = 2
+					y = 2
+					w = "(if(width < 4, 0, width - 4))"
+					h = "(if(height < 4, 0, height - 4))"
+					name = "dialogs/menu-background.png"
+					resize_mode = "tile"
+				[/image]
+
+				[rectangle]
+					x = 1
+					y = 1
+					w = "(width - 1)"
+					h = "(height - 1)"
+					fill_color = {GUI__BACKGROUND_COLOR_ENABLED}
+				[/rectangle]
+
+			[/draw]
+
+		[/background]
+
+		[foreground]
+
+			[draw]
+			[/draw]
+
+		[/foreground]
+
+	[/resolution]
+
+[/window_definition]
+

data/gui/default/window/tooltip_large.cfg

@@ -185,7 +185,7 @@ def reevaluate_best_size(w, s)
 	description = "The tooltip popup window with large tooltips, eg in the main menu."
 
 	[resolution]
-		definition = "tooltip_large"
+		definition = "tooltip"
 
 		automatic_placement = "false"