Graphics.Svg.CssTypes

Define the types used to describes CSS elements

Documentation

data CssSelector

Define complex selector.

Constructors

Nearby

Correspond to the + CSS selector.

DirectChildren

Correspond to the > CSS selectro.

AllOf [CssDescriptor]

Grouping construct, all the elements of the list must be matched.

Instances

Eq CssSelector

Methods

(==) :: CssSelector -> CssSelector -> Bool

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

Show CssSelector

Methods

showsPrec :: Int -> CssSelector -> ShowS

show :: CssSelector -> String

showList :: [CssSelector] -> ShowS

type CssSelectorRule = [CssSelector]

A CssSelectorRule is a list of all the elements that must be meet in a depth first search fashion.

data CssRule

Represent a CSS selector and the different declarations to apply to the matched elemens.

Constructors

CssRule

Fields

• cssRuleSelector :: ![CssSelectorRule]

  At the first level represent a list of elements to be matched. If any match is made, you can apply the declarations. At the second level

• cssDeclarations :: ![CssDeclaration]

  Declarations to apply to the matched element.

Instances

Eq CssRule

Methods

(==) :: CssRule -> CssRule -> Bool

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

Show CssRule

Methods

showsPrec :: Int -> CssRule -> ShowS

show :: CssRule -> String

showList :: [CssRule] -> ShowS

data CssDescriptor

Describe an element of a CSS selector. Multiple elements can be combined in a CssSelector type.

Constructors

OfClass Text

.IDENT

OfName Text

IDENT

OfId Text

#IDENT

OfPseudoClass Text

`:IDENT` (ignore function syntax)

AnyElem

*

WithAttrib Text Text

``

Instances

Eq CssDescriptor

Methods

(==) :: CssDescriptor -> CssDescriptor -> Bool

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

Show CssDescriptor

Methods

showsPrec :: Int -> CssDescriptor -> ShowS

show :: CssDescriptor -> String

showList :: [CssDescriptor] -> ShowS

data CssDeclaration

Represent the content to apply to some CSS matched rules.

Constructors

CssDeclaration

Fields

• _cssDeclarationProperty :: Text

  Property name to change (like font-family or color).

• _cssDecarationlValues :: [[CssElement]]

  List of values

Instances

Eq CssDeclaration

Methods

(==) :: CssDeclaration -> CssDeclaration -> Bool

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

Show CssDeclaration

Methods

showsPrec :: Int -> CssDeclaration -> ShowS

show :: CssDeclaration -> String

showList :: [CssDeclaration] -> ShowS

data CssElement

Value of a CSS property.

Constructors

CssIdent !Text

CssString !Text

CssReference !Text

CssNumber !Number

CssColor !PixelRGBA8

CssFunction !Text ![CssElement]

CssOpComa

CssOpSlash

Instances

Eq CssElement

Methods

(==) :: CssElement -> CssElement -> Bool

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

Show CssElement

Methods

showsPrec :: Int -> CssElement -> ShowS

show :: CssElement -> String

showList :: [CssElement] -> ShowS

class CssMatcheable a where

Interface for elements to be matched against some CssRule.

Minimal complete definition

cssIdOf, cssClassOf, cssNameOf, cssAttribOf

Methods

cssIdOf :: a -> Maybe Text

For an element, tell its optional ID attribute.

cssClassOf :: a -> [Text]

For an element, return all of it's class attributes.

cssNameOf :: a -> Text

Return the name of the tagname of the element

cssAttribOf :: a -> Text -> Maybe Text

Return a value of a given attribute if present

Instances

CssMatcheable Tree

Methods

cssIdOf :: Tree -> Maybe Text

cssClassOf :: Tree -> [Text]

cssNameOf :: Tree -> Text

cssAttribOf :: Tree -> Text -> Maybe Text

type CssContext a = [[a]]

Represent a zipper in depth at the first list level, and the previous nodes at in the second list level.

type Dpi = Int

Alias describing a "dot per inch" information used for size calculation (see toUserUnit).

data Number

Encode complex number possibly dependant to the current render size.

Constructors

Num Double

Simple coordinate in current user coordinate.

Px Double

With suffix "px"

Em Double

Number relative to the current font size.

Percent Double

Number relative to the current viewport size.

Pc Double

Mm Double

Number in millimeters, relative to DPI.

Cm Double

Number in centimeters, relative to DPI.

Point Double

Number in points, relative to DPI.

Inches Double

Number in inches, relative to DPI.

Instances

Eq Number

Methods

(==) :: Number -> Number -> Bool

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

Show Number

Methods

showsPrec :: Int -> Number -> ShowS

show :: Number -> String

showList :: [Number] -> ShowS

serializeNumber :: Number -> String

Encode the number to string which can be used in a CSS or a svg attributes.

findMatchingDeclarations :: CssMatcheable a => [CssRule] -> CssContext a -> [CssDeclaration]

Given CSS rules, find all the declaration to apply to the element in a given context.

toUserUnit :: Dpi -> Number -> Number

This function replace all device dependant units to user units given it's DPI configuration. Preserve percentage and "em" notation.

mapNumber :: (Double -> Double) -> Number -> Number

Helper function to modify inner value of a number

tserialize :: TextBuildable a => a -> Builder

Serialize an element to a text builder.