HGL-3.2.0.5: A simple graphics library based on X11 or Win32

Portabilitynon-portable (requires concurrency)
Stabilityprovisional
Maintainerlibraries@haskell.org
Safe HaskellNone

Graphics.HGL.Draw.Pen

Description

Pens, used for drawing lines.

Portability notes:

  • On Win32, the pen is also used to draw a line round all the filled shapes --- so the pen color also affects how polygons, ellipses and regions are drawn.
  • On Win32, the Style is ignored (i.e. treated as Solid) for pens of width greater than 1. This problem does not apply to X11.

Synopsis

Documentation

data Pen Source

data Style Source

The style of line drawn by a pen.

Constructors

Solid 
Dash 
Dot 
DashDot 
DashDotDot 
Null 
InsideFrame 

createPen :: Style -> Int -> RGB -> IO PenSource

Create a Pen.

deletePen :: Pen -> IO ()Source

Destroy a Pen created with createPen.

selectPen :: Pen -> Draw PenSource

Set the Pen for subsequent drawing, returning the previous setting.

mkPen :: Style -> Int -> RGB -> (Pen -> Draw a) -> Draw aSource

Create a Pen locally to a drawing.