Copyright	(c) 2006-2016 alpheccar.org
License	BSD-style
Maintainer	misc@NOSPAMalpheccar.org
Stability	experimental
Portability	portable
Safe Haskell	None
Language	Haskell2010

Graphics.PDF.Shapes

Contents

Shapes

Description

PDF Shapes

Synopsis

moveto :: Point -> Draw ()
lineto :: Point -> Draw ()
arcto :: Angle -> Point -> Draw ()
curveto :: Point -> Point -> Point -> Draw ()
beginPath :: Point -> Draw ()
closePath :: Draw ()
addBezierCubic :: Point -> Point -> Point -> Draw ()
addPolygonToPath :: [Point] -> Draw ()
addLineToPath :: Point -> Draw ()
strokePath :: Draw ()
fillPath :: Draw ()
fillAndStrokePath :: Draw ()
fillPathEO :: Draw ()
fillAndStrokePathEO :: Draw ()
setAsClipPath :: Draw ()
setAsClipPathEO :: Draw ()
class Shape a where
data Line = Line PDFFloat PDFFloat PDFFloat PDFFloat
data Rectangle = Rectangle !Point !Point
newtype Polygon = Polygon [Point]
data Arc = Arc PDFFloat PDFFloat PDFFloat PDFFloat
data Ellipse = Ellipse PDFFloat PDFFloat PDFFloat PDFFloat
data Circle = Circle PDFFloat PDFFloat PDFFloat
data RoundRectangle = RoundRectangle PDFFloat PDFFloat PDFFloat PDFFloat PDFFloat PDFFloat
data CapStyle
- = ButtCap
- | RoundCap
- | SquareCap
data JoinStyle
- = MiterJoin
- | RoundJoin
- | BevelJoin
data DashPattern = DashPattern ![PDFFloat] PDFFloat
setWidth :: MonadPath m => PDFFloat -> m ()
setLineCap :: MonadPath m => CapStyle -> m ()
setLineJoin :: MonadPath m => JoinStyle -> m ()
setDash :: MonadPath m => DashPattern -> m ()
setNoDash :: MonadPath m => m ()
setMiterLimit :: MonadPath m => PDFFloat -> m ()

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 #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: Polygon -> Draw () # stroke :: Polygon -> Draw () # fill :: Polygon -> Draw () # fillAndStroke :: Polygon -> Draw () # fillEO :: Polygon -> Draw () # fillAndStrokeEO :: Polygon -> Draw () #
Shape Circle #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: Circle -> Draw () # stroke :: Circle -> Draw () # fill :: Circle -> Draw () # fillAndStroke :: Circle -> Draw () # fillEO :: Circle -> Draw () # fillAndStrokeEO :: Circle -> Draw () #
Shape RoundRectangle #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: RoundRectangle -> Draw () # stroke :: RoundRectangle -> Draw () # fill :: RoundRectangle -> Draw () # fillAndStroke :: RoundRectangle -> Draw () # fillEO :: RoundRectangle -> Draw () # fillAndStrokeEO :: RoundRectangle -> Draw () #
Shape Ellipse #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: Ellipse -> Draw () # stroke :: Ellipse -> Draw () # fill :: Ellipse -> Draw () # fillAndStroke :: Ellipse -> Draw () # fillEO :: Ellipse -> Draw () # fillAndStrokeEO :: Ellipse -> Draw () #
Shape Arc #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: Arc -> Draw () # stroke :: Arc -> Draw () # fill :: Arc -> Draw () # fillAndStroke :: Arc -> Draw () # fillEO :: Arc -> Draw () # fillAndStrokeEO :: Arc -> Draw () #
Shape Rectangle #
Instance details Defined in Graphics.PDF.Shapes Methods addShape :: Rectangle -> Draw () # stroke :: Rectangle -> Draw () # fill :: Rectangle -> Draw () # fillAndStroke :: Rectangle -> Draw () # fillEO :: Rectangle -> Draw () # fillAndStrokeEO :: Rectangle -> Draw () #
Shape Line #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: Line -> Line -> Bool # (/=) :: Line -> Line -> Bool #
Shape Line #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: Rectangle -> Rectangle -> Bool # (/=) :: Rectangle -> Rectangle -> Bool #
Shape Rectangle #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: Arc -> Arc -> Bool # (/=) :: Arc -> Arc -> Bool #
Shape Arc #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: Ellipse -> Ellipse -> Bool # (/=) :: Ellipse -> Ellipse -> Bool #
Shape Ellipse #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: Circle -> Circle -> Bool # (/=) :: Circle -> Circle -> Bool #
Shape Circle #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: RoundRectangle -> RoundRectangle -> Bool # (/=) :: RoundRectangle -> RoundRectangle -> Bool #
Shape RoundRectangle #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: CapStyle -> CapStyle -> Bool # (/=) :: CapStyle -> CapStyle -> Bool #

data JoinStyle #

Line join styles

Constructors

MiterJoin
RoundJoin
BevelJoin

Instances

Enum JoinStyle #
Instance details Defined in Graphics.PDF.Shapes 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 #
Instance details Defined in Graphics.PDF.Shapes Methods (==) :: JoinStyle -> JoinStyle -> Bool # (/=) :: JoinStyle -> JoinStyle -> Bool #

data DashPattern #

Constructors

DashPattern ![PDFFloat] PDFFloat

Instances

Eq DashPattern #
Instance details Defined in Graphics.PDF.Shapes 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