Graphics.PDF.Shapes

PDF Shapes

Shapes

Paths

moveto :: Point -> Draw ()

Move pen to a given point without drawing anything

lineto :: Point -> Draw ()

Draw a line from current point to the one specified by lineto

arcto

Arguments

:: Angle

Extent of arc

-> Point

Center of arc

-> Draw ()

Approximate a circular arc by one cubic bezier curve. larger arc angles mean larger distortions

curveto :: Point -> Point -> Point -> Draw ()

beginPath :: Point -> Draw ()

Begin a new path at a position

closePath :: Draw ()

Close current path

addBezierCubic :: Point -> Point -> Point -> Draw ()

Append a cubic Bezier curve to the current path. The curve extends from the current point to the point (x3 , y3), using (x1 , y1 ) and (x2, y2) as the Bezier control points

addPolygonToPath :: [Point] -> Draw ()

Add a polygon to current path

addLineToPath :: Point -> Draw ()

strokePath :: Draw ()

Draw current path

fillPath :: Draw ()

Fill current path

fillAndStrokePath :: Draw ()

Fill current path

fillPathEO :: Draw ()

Fill current path using even odd rule

fillAndStrokePathEO :: Draw ()

Fill current path using even odd rule

setAsClipPath :: Draw ()

Set clipping path

setAsClipPathEO :: Draw ()

Set clipping path

Usual shapes

class Shape a where

Minimal complete definition

addShape

Methods

addShape :: a -> Draw ()

stroke :: a -> Draw ()

fill :: a -> Draw ()

fillAndStroke :: a -> Draw ()

fillEO :: a -> Draw ()

fillAndStrokeEO :: a -> Draw ()

Instances

Shape Polygon

Methods

addShape :: Polygon -> Draw ()

stroke :: Polygon -> Draw ()

fill :: Polygon -> Draw ()

fillAndStroke :: Polygon -> Draw ()

fillEO :: Polygon -> Draw ()

fillAndStrokeEO :: Polygon -> Draw ()

Shape Circle

Methods

addShape :: Circle -> Draw ()

stroke :: Circle -> Draw ()

fill :: Circle -> Draw ()

fillAndStroke :: Circle -> Draw ()

fillEO :: Circle -> Draw ()

fillAndStrokeEO :: Circle -> Draw ()

Shape RoundRectangle

Methods

addShape :: RoundRectangle -> Draw ()

stroke :: RoundRectangle -> Draw ()

fill :: RoundRectangle -> Draw ()

fillAndStroke :: RoundRectangle -> Draw ()

fillEO :: RoundRectangle -> Draw ()

fillAndStrokeEO :: RoundRectangle -> Draw ()

Shape Ellipse

Methods

addShape :: Ellipse -> Draw ()

stroke :: Ellipse -> Draw ()

fill :: Ellipse -> Draw ()

fillAndStroke :: Ellipse -> Draw ()

fillEO :: Ellipse -> Draw ()

fillAndStrokeEO :: Ellipse -> Draw ()

Shape Arc

Methods

addShape :: Arc -> Draw ()

stroke :: Arc -> Draw ()

fill :: Arc -> Draw ()

fillAndStroke :: Arc -> Draw ()

fillEO :: Arc -> Draw ()

fillAndStrokeEO :: Arc -> Draw ()

Shape Rectangle

Methods

addShape :: Rectangle -> Draw ()

stroke :: Rectangle -> Draw ()

fill :: Rectangle -> Draw ()

fillAndStroke :: Rectangle -> Draw ()

fillEO :: Rectangle -> Draw ()

fillAndStrokeEO :: Rectangle -> Draw ()

Shape Line

Methods

addShape :: Line -> Draw ()

stroke :: Line -> Draw ()

fill :: Line -> Draw ()

fillAndStroke :: Line -> Draw ()

fillEO :: Line -> Draw ()

fillAndStrokeEO :: Line -> Draw ()

data Line

Constructors

Line PDFFloat PDFFloat PDFFloat PDFFloat

Instances

Eq Line

Methods

(==) :: Line -> Line -> Bool

(/=) :: Line -> Line -> Bool

Shape Line

Methods

addShape :: Line -> Draw ()

stroke :: Line -> Draw ()

fill :: Line -> Draw ()

fillAndStroke :: Line -> Draw ()

fillEO :: Line -> Draw ()

fillAndStrokeEO :: Line -> Draw ()

data Rectangle

Constructors

Rectangle !Point !Point

Instances

Eq Rectangle

Methods

(==) :: Rectangle -> Rectangle -> Bool

(/=) :: Rectangle -> Rectangle -> Bool

Shape Rectangle

Methods

addShape :: Rectangle -> Draw ()

stroke :: Rectangle -> Draw ()

fill :: Rectangle -> Draw ()

fillAndStroke :: Rectangle -> Draw ()

fillEO :: Rectangle -> Draw ()

fillAndStrokeEO :: Rectangle -> Draw ()

newtype Polygon

Constructors

Polygon [Point]

Instances

Shape Polygon

Methods

addShape :: Polygon -> Draw ()

stroke :: Polygon -> Draw ()

fill :: Polygon -> Draw ()

fillAndStroke :: Polygon -> Draw ()

fillEO :: Polygon -> Draw ()

fillAndStrokeEO :: Polygon -> Draw ()

data Arc

Constructors

Arc PDFFloat PDFFloat PDFFloat PDFFloat

Instances

Eq Arc

Methods

(==) :: Arc -> Arc -> Bool

(/=) :: Arc -> Arc -> Bool

Shape Arc

Methods

addShape :: Arc -> Draw ()

stroke :: Arc -> Draw ()

fill :: Arc -> Draw ()

fillAndStroke :: Arc -> Draw ()

fillEO :: Arc -> Draw ()

fillAndStrokeEO :: Arc -> Draw ()

data Ellipse

Constructors

Ellipse PDFFloat PDFFloat PDFFloat PDFFloat

Instances

Eq Ellipse

Methods

(==) :: Ellipse -> Ellipse -> Bool

(/=) :: Ellipse -> Ellipse -> Bool

Shape Ellipse

Methods

addShape :: Ellipse -> Draw ()

stroke :: Ellipse -> Draw ()

fill :: Ellipse -> Draw ()

fillAndStroke :: Ellipse -> Draw ()

fillEO :: Ellipse -> Draw ()

fillAndStrokeEO :: Ellipse -> Draw ()

data Circle

Constructors

Circle PDFFloat PDFFloat PDFFloat

Instances

Eq Circle

Methods

(==) :: Circle -> Circle -> Bool

(/=) :: Circle -> Circle -> Bool

Shape Circle

Methods

addShape :: Circle -> Draw ()

stroke :: Circle -> Draw ()

fill :: Circle -> Draw ()

fillAndStroke :: Circle -> Draw ()

fillEO :: Circle -> Draw ()

fillAndStrokeEO :: Circle -> Draw ()

data RoundRectangle

Constructors

RoundRectangle PDFFloat PDFFloat PDFFloat PDFFloat PDFFloat PDFFloat

Instances

Eq RoundRectangle

Methods

(==) :: RoundRectangle -> RoundRectangle -> Bool

(/=) :: RoundRectangle -> RoundRectangle -> Bool

Shape RoundRectangle

Methods

addShape :: RoundRectangle -> Draw ()

stroke :: RoundRectangle -> Draw ()

fill :: RoundRectangle -> Draw ()

fillAndStroke :: RoundRectangle -> Draw ()

fillEO :: RoundRectangle -> Draw ()

fillAndStrokeEO :: RoundRectangle -> Draw ()

Style

data CapStyle

Line cap styles

Constructors

ButtCap

RoundCap

SquareCap

Instances

Enum CapStyle

Methods

succ :: CapStyle -> CapStyle

pred :: CapStyle -> CapStyle

toEnum :: Int -> CapStyle

fromEnum :: CapStyle -> Int

enumFrom :: CapStyle -> [CapStyle]

enumFromThen :: CapStyle -> CapStyle -> [CapStyle]

enumFromTo :: CapStyle -> CapStyle -> [CapStyle]

enumFromThenTo :: CapStyle -> CapStyle -> CapStyle -> [CapStyle]

Eq CapStyle

Methods

(==) :: CapStyle -> CapStyle -> Bool

(/=) :: CapStyle -> CapStyle -> Bool

data JoinStyle

Line join styles

Constructors

MiterJoin

RoundJoin

BevelJoin

Instances

Enum JoinStyle

Methods

succ :: JoinStyle -> JoinStyle

pred :: JoinStyle -> JoinStyle

toEnum :: Int -> JoinStyle

fromEnum :: JoinStyle -> Int

enumFrom :: JoinStyle -> [JoinStyle]

enumFromThen :: JoinStyle -> JoinStyle -> [JoinStyle]

enumFromTo :: JoinStyle -> JoinStyle -> [JoinStyle]

enumFromThenTo :: JoinStyle -> JoinStyle -> JoinStyle -> [JoinStyle]

Eq JoinStyle

Methods

(==) :: JoinStyle -> JoinStyle -> Bool

(/=) :: JoinStyle -> JoinStyle -> Bool

data DashPattern

Constructors

DashPattern ![PDFFloat] PDFFloat

Instances

Eq DashPattern

Methods

(==) :: DashPattern -> DashPattern -> Bool

(/=) :: DashPattern -> DashPattern -> Bool

setWidth :: MonadPath m => PDFFloat -> m ()

Set pen width

setLineCap :: MonadPath m => CapStyle -> m ()

Set line cap

setLineJoin :: MonadPath m => JoinStyle -> m ()

Set line join

setDash :: MonadPath m => DashPattern -> m ()

Set the dash pattern

setNoDash :: MonadPath m => m ()

No dash pattern

setMiterLimit :: MonadPath m => PDFFloat -> m ()

Set pen width