{-# LANGUAGE DeriveAnyClass #-} {-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE FlexibleInstances #-} {-# LANGUAGE FunctionalDependencies #-} {-# LANGUAGE MultiParamTypeClasses #-} {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE RankNTypes #-} {-# LANGUAGE StandaloneDeriving #-} {-# LANGUAGE TemplateHaskell #-} -- | This module define all the types used in the definition -- of a svg scene. -- -- Most of the types are lensified. module Graphics.SvgTree.Types.Internal ( -- * Basic building types Coord, Origin (..), Point, RPoint, PathCommand (..), Transformation (..), ElementRef (..), CoordinateUnits (..), -- ** Building helpers serializeNumber, serializeTransformation, serializeTransformations, -- * Drawing control types Cap (..), LineJoin (..), Tree (..), TreeBranch (..), Number (..), Spread (..), Texture (..), Element (..), FillRule (..), FontStyle (..), Dpi, WithDefaultSvg (..), -- * Main type Document (..), documentViewBox, documentWidth, documentHeight, documentElements, documentDescription, documentLocation, documentAspectRatio, documentSize, -- * Drawing attributes DrawAttributes (..), HasDrawAttributes (..), -- * Filters FilterElement (..), FilterAttributes (..), HasFilterAttributes (..), FilterSource (..), Blend (..), BlendMode (..), blendDrawAttributes, blendFilterAttr, blendIn, blendIn2, blendMode, ConvolveMatrix (..), convolveMatrixDrawAttributes, convolveMatrixFilterAttr, convolveMatrixIn, convolveMatrixOrder, convolveMatrixKernelMatrix, convolveMatrixDivisor, convolveMatrixBias, convolveMatrixTargetX, convolveMatrixTargetY, convolveMatrixEdgeMode, convolveMatrixKernelUnitLength, convolveMatrixPreserveAlpha, Morphology (..), OperatorType (..), NumberOptionalNumber (..), morphologyDrawAttributes, morphologyFilterAttr, morphologyIn, morphologyOperator, morphologyRadius, SpecularLighting (..), specLightingDrawAttributes, specLightingFilterAttr, specLightingIn, specLightingSurfaceScale, specLightingSpecularConst, specLightingSpecularExp, specLightingKernelUnitLength, DropShadow (..), dropShadowDrawAttributes, dropShadowFilterAttr, dropShadowDx, dropShadowDy, dropShadowStdDeviation, DiffuseLighting, diffuseLightingDrawAttributes, diffuseLightingFilterAttr, diffuseLightingIn, diffuseLightingSurfaceScale, diffuseLightingDiffuseConst, diffuseLightingKernelUnitLength, Tile (..), tileDrawAttributes, tileFilterAttr, tileIn, Flood (..), floodDrawAttributes, floodFilterAttr, floodColor, floodOpacity, Offset (..), offsetDrawAttributes, offsetFilterAttr, offsetIn, offsetDX, offsetDY, Merge (..), mergeDrawAttributes, mergeFilterAttributes, mergeChildren, MergeNode (..), mergeNodeDrawAttributes, mergeNodeIn, ImageF (..), imageFDrawAttributes, imageFFilterAttr, imageFHref, imageFAspectRatio, ComponentTransfer (..), compTransferDrawAttributes, compTransferFilterAttr, compTransferChildren, compTransferIn, FuncA (..), FuncType (..), funcADrawAttributes, funcAType, funcATableValues, funcASlope, funcAIntercept, funcAAmplitude, funcAExponent, FuncR (..), funcRDrawAttributes, funcRType, funcRTableValues, funcRSlope, funcRIntercept, funcRAmplitude, funcRExponent, FuncG (..), funcGDrawAttributes, funcGType, funcGTableValues, funcGSlope, funcGIntercept, funcGAmplitude, funcGExponent, FuncB (..), funcBDrawAttributes, funcBType, funcBTableValues, funcBSlope, funcBIntercept, funcBAmplitude, funcBExponent, ColorMatrixType (..), colorMatrixDrawAttributes, colorMatrixFilterAttr, colorMatrixIn, colorMatrixType, colorMatrixValues, ColorMatrix (..), compositeDrawAttributes, compositeFilterAttr, compositeIn, compositeIn2, compositeOperator, compositeK1, compositeK2, compositeK3, compositeK4, Composite (..), CompositeOperator (..), EdgeMode (..), gaussianBlurDrawAttributes, gaussianBlurFilterAttr, gaussianBlurIn, gaussianBlurStdDeviationX, gaussianBlurStdDeviationY, gaussianBlurEdgeMode, GaussianBlur (..), turbulenceDrawAttributes, turbulenceFilterAttr, turbulenceBaseFrequency, turbulenceNumOctaves, turbulenceSeed, turbulenceStitchTiles, turbulenceType, Turbulence (..), TurbulenceType (..), StitchTiles (..), DisplacementMap (..), displacementMapDrawAttributes, displacementMapFilterAttr, displacementMapIn, displacementMapIn2, displacementMapScale, displacementMapXChannelSelector, displacementMapYChannelSelector, ChannelSelector (..), -- * SVG drawing primitives -- ** Rectangle Rectangle (..), rectangleDrawAttributes, rectUpperLeftCorner, rectWidth, rectHeight, rectCornerRadius, -- ** Line Line (..), lineDrawAttributes, linePoint1, linePoint2, -- ** Polygon Polygon (..), polygonDrawAttributes, polygonPoints, -- ** Polyline PolyLine (..), polyLineDrawAttributes, polyLinePoints, -- ** Path Path (..), pathDrawAttributes, pathDefinition, -- ** Circle Circle (..), circleDrawAttributes, circleCenter, circleRadius, -- ** Ellipse Ellipse (..), ellipseDrawAttributes, ellipseCenter, ellipseXRadius, ellipseYRadius, -- ** Mesh (gradient mesh) GradientPathCommand (..), MeshGradientType (..), MeshGradient (..), meshGradientDrawAttributes, meshGradientX, meshGradientY, meshGradientType, meshGradientUnits, meshGradientTransform, meshGradientRows, MeshGradientRow (..), meshGradientRowPatches, MeshGradientPatch (..), meshGradientPatchStops, -- ** Image Image (..), imageDrawAttributes, imageCornerUpperLeft, imageWidth, imageHeight, imageHref, imageAspectRatio, -- ** Use Use (..), useDrawAttributes, useBase, useName, useWidth, useHeight, -- * Grouping primitives -- ** Group Group (..), groupDrawAttributes, groupChildren, groupViewBox, groupAspectRatio, -- ** Filter Filter (..), filterDrawAttributes, filterSelfAttributes, filterChildren, -- * Text related types -- ** Text Text (..), textAdjust, textRoot, TextAnchor (..), textAt, -- ** Text path TextPath (..), textPathStartOffset, textPathName, textPathMethod, textPathSpacing, TextPathSpacing (..), TextPathMethod (..), -- ** Text span. TextSpanContent (..), TextSpan (..), spanInfo, spanDrawAttributes, spanContent, TextInfo (..), textInfoX, textInfoY, textInfoDX, textInfoDY, textInfoRotate, textInfoLength, TextAdjust (..), -- * Marker definition Marker (..), Overflow (..), MarkerOrientation (..), MarkerUnit (..), markerDrawAttributes, markerRefPoint, markerWidth, markerHeight, markerOrient, markerUnits, markerViewBox, markerOverflow, markerAspectRatio, markerElements, -- * Gradient definition GradientStop (..), gradientOffset, gradientColor, gradientPath, gradientOpacity, -- ** Linear Gradient LinearGradient (..), linearGradientDrawAttributes, linearGradientUnits, linearGradientStart, linearGradientStop, linearGradientSpread, linearGradientTransform, linearGradientStops, -- ** Radial Gradient RadialGradient (..), radialGradientDrawAttributes, radialGradientUnits, radialGradientCenter, radialGradientRadius, radialGradientFocusX, radialGradientFocusY, radialGradientSpread, radialGradientTransform, radialGradientStops, -- * Pattern definition Pattern (..), patternDrawAttributes, patternViewBox, patternWidth, patternHeight, patternPos, patternHref, patternElements, patternUnit, patternAspectRatio, patternTransform, -- * Mask definition Mask (..), maskDrawAttributes, maskContentUnits, maskUnits, maskPosition, maskWidth, maskHeight, maskContent, -- * Clip path definition ClipPath (..), clipPathDrawAttributes, clipPathUnits, clipPathContent, -- * Aspect Ratio description PreserveAspectRatio (..), Alignment (..), MeetSlice (..), aspectRatioDefer, aspectRatioAlign, aspectRatioMeetSlice, -- * MISC functions nameOfTree, toUserUnit, mapNumber, ) where import Codec.Picture (PixelRGBA8 (..)) import Control.Lens.TH (makeClassy, makeLenses) import Data.Function (on) import Data.Monoid (Last (..)) import qualified Data.Text as T import GHC.Generics (Generic) import Graphics.SvgTree.CssTypes ( Dpi, Number (..), mapNumber, serializeNumber, toUserUnit, ) import Graphics.SvgTree.Misc (ppD) import Graphics.SvgTree.Types.Basic import Text.Printf (printf) -- | Path command definition. data PathCommand = -- | 'M' or 'm' command MoveTo !Origin ![RPoint] | -- | Line to, 'L' or 'l' Svg path command. LineTo !Origin ![RPoint] | -- | Equivalent to the 'H' or 'h' svg path command. HorizontalTo !Origin ![Coord] | -- | Equivalent to the 'V' or 'v' svg path command. VerticalTo !Origin ![Coord] | -- | Cubic bezier, 'C' or 'c' command CurveTo !Origin ![(RPoint, RPoint, RPoint)] | -- | Smooth cubic bezier, equivalent to 'S' or 's' command SmoothCurveTo !Origin ![(RPoint, RPoint)] | -- | Quadratic bezier, 'Q' or 'q' command QuadraticBezier !Origin ![(RPoint, RPoint)] | -- | Quadratic bezier, 'T' or 't' command SmoothQuadraticBezierCurveTo !Origin ![RPoint] | -- | Eliptical arc, 'A' or 'a' command. EllipticalArc !Origin ![(Coord, Coord, Coord, Bool, Bool, RPoint)] | -- | Close the path, 'Z' or 'z' svg path command. EndPath deriving (Eq, Show, Generic) -- | Description of path used in meshgradient tag data GradientPathCommand = -- | Line to, 'L' or 'l' Svg path command. GLine !Origin !(Maybe RPoint) | -- | Cubic bezier, 'C' or 'c' command GCurve !Origin !RPoint !RPoint !(Maybe RPoint) | -- | 'Z' command GClose deriving (Eq, Show, Generic) -- | Describe the content of the preserveAspectRatio attribute. data PreserveAspectRatio = PreserveAspectRatio { _aspectRatioDefer :: !Bool, _aspectRatioAlign :: !Alignment, _aspectRatioMeetSlice :: !(Maybe MeetSlice) } deriving (Eq, Show, Generic) instance WithDefaultSvg PreserveAspectRatio where defaultSvg = PreserveAspectRatio { _aspectRatioDefer = False, _aspectRatioAlign = AlignxMidYMid, _aspectRatioMeetSlice = Nothing } -- | Describe the content of the `transformation` attribute. -- see `_transform` and `transform`. data Transformation = -- | Directly encode the translation matrix. TransformMatrix !Coord !Coord !Coord !Coord !Coord !Coord | -- | Translation along a vector Translate !Double !Double | -- | Scaling on both axis or on X axis and Y axis. Scale !Double !(Maybe Double) | -- | Rotation around `(0, 0)` or around an optional -- point. Rotate !Double !(Maybe (Double, Double)) | -- | Skew transformation along the X axis. SkewX !Double | -- | Skew transformation along the Y axis. SkewY !Double | -- | Unkown transformation, like identity. TransformUnknown deriving (Eq, Show, Generic) -- | Convert the Transformation to a string which can be -- directly used in a svg attributes. serializeTransformation :: Transformation -> String serializeTransformation t = case t of TransformUnknown -> "" TransformMatrix a b c d e f -> printf "matrix(%s, %s, %s, %s, %s, %s)" (ppD a) (ppD b) (ppD c) (ppD d) (ppD e) (ppD f) Translate x y -> printf "translate(%s, %s)" (ppD x) (ppD y) Scale x Nothing -> printf "scale(%s)" (ppD x) Scale x (Just y) -> printf "scale(%s, %s)" (ppD x) (ppD y) Rotate angle Nothing -> printf "rotate(%s)" (ppD angle) Rotate angle (Just (x, y)) -> printf "rotate(%s, %s, %s)" (ppD angle) (ppD x) (ppD y) SkewX x -> printf "skewX(%s)" (ppD x) SkewY y -> printf "skewY(%s)" (ppD y) -- | Transform a list of transformations to a string for svg -- `transform` attributes. serializeTransformations :: [Transformation] -> String serializeTransformations = unwords . fmap serializeTransformation -- | Define an empty 'default' element for the SVG tree. -- It is used as base when parsing the element from XML. class WithDefaultSvg a where -- | The default element. defaultSvg :: a -- | Classify the font style, used to search a matching -- font in the FontCache. data FontStyle = FontStyleNormal | FontStyleItalic | FontStyleOblique deriving (Eq, Show, Generic) -- | Tell where to anchor the text, where the position -- given is realative to the text. data TextAnchor = -- | The text with left aligned, or start at the postion -- If the point is the '*' then the text will be printed -- this way: -- -- > *THE_TEXT_TO_PRINT -- -- Equivalent to the `start` value. TextAnchorStart | -- | The text is middle aligned, so the text will be at -- the left and right of the position: -- -- > THE_TEXT*TO_PRINT -- -- Equivalent to the `middle` value. TextAnchorMiddle | -- | The text is right aligned. -- -- > THE_TEXT_TO_PRINT* -- -- Equivalent to the `end` value. TextAnchorEnd deriving (Eq, Show, Generic) -- | Correspond to the possible values of the -- the attributes which are either `none` or -- `url(#elem)` data ElementRef = -- | Value for `none` RefNone | -- | Equivalent to `url()` attribute. Ref String deriving (Eq, Show, Generic) data FilterSource = SourceGraphic | SourceAlpha | BackgroundImage | BackgroundAlpha | FillPaint | StrokePaint | SourceRef String deriving (Eq, Show, Generic) data FilterAttributes = FilterAttributes { _filterHeight :: !(Last Number), _filterResult :: !(Maybe String), _filterWidth :: !(Last Number), _filterX :: !(Last Number), _filterY :: !(Last Number) } deriving (Eq, Show, Generic) instance WithDefaultSvg FilterAttributes where defaultSvg = FilterAttributes { _filterHeight = Last Nothing, _filterResult = Nothing, _filterWidth = Last Nothing, _filterX = Last Nothing, _filterY = Last Nothing } -- | This type define how to draw any primitives, -- which color to use, how to stroke the primitives -- and the potential transformations to use. -- -- All these attributes are propagated to the children. data DrawAttributes = DrawAttributes { -- | Attribute corresponding to the `stroke-width` -- SVG attribute. _strokeWidth :: !(Last Number), -- | Correspond to the `stroke` attribute. _strokeColor :: !(Last Texture), -- | Define the `stroke-opacity` attribute, the transparency -- for the "border". _strokeOpacity :: !(Maybe Float), -- | Correspond to the `stroke-linecap` SVG -- attribute _strokeLineCap :: !(Last Cap), -- | Correspond to the `stroke-linejoin` SVG -- attribute _strokeLineJoin :: !(Last LineJoin), -- | Define the distance of the miter join, correspond -- to the `stroke-miterlimit` attritbue. _strokeMiterLimit :: !(Last Double), -- | Define the filling color of the elements. Corresponding -- to the `fill` attribute. _fillColor :: !(Last Texture), -- | Define the `fill-opacity` attribute, the transparency -- for the "content". _fillOpacity :: !(Maybe Float), -- | Define the global or group opacity attribute. _groupOpacity :: !(Maybe Float), -- | Content of the `transform` attribute _transform :: !(Maybe [Transformation]), -- | Define the `fill-rule` used during the rendering. _fillRule :: !(Last FillRule), -- | Define the `mask` attribute. _maskRef :: !(Last ElementRef), -- | Define the `clip-path` attribute. _clipPathRef :: !(Last ElementRef), -- | Define the `clip-rule` attribute. _clipRule :: !(Last FillRule), -- | Map to the `class` attribute. Used for the CSS -- rewriting. _attrClass :: ![T.Text], -- | Map to the `id` attribute. Used for the CSS -- rewriting. _attrId :: !(Maybe String), -- | Define the start distance of the dashing pattern. -- Correspond to the `stroke-dashoffset` attribute. _strokeOffset :: !(Last Number), -- | Define the dashing pattern for the lines. Correspond -- to the `stroke-dasharray` attribute. _strokeDashArray :: !(Last [Number]), -- | Current size of the text, correspond to the -- `font-size` SVG attribute. _fontSize :: !(Last Number), -- | Define the possible fonts to be used for text rendering. -- Map to the `font-family` attribute. _fontFamily :: !(Last [String]), -- | Map to the `font-style` attribute. _fontStyle :: !(Last FontStyle), -- | Define how to interpret the text position, correspond -- to the `text-anchor` attribute. _textAnchor :: !(Last TextAnchor), -- | Define the marker used for the start of the line. -- Correspond to the `marker-start` attribute. _markerStart :: !(Last ElementRef), -- | Define the marker used for every point of the -- polyline/path Correspond to the `marker-mid` -- attribute. _markerMid :: !(Last ElementRef), -- | Define the marker used for the end of the line. -- Correspond to the `marker-end` attribute. _markerEnd :: !(Last ElementRef), _filterRef :: !(Last ElementRef) } deriving (Eq, Show, Generic) makeClassy ''DrawAttributes -- | This primitive describe an unclosed suite of -- segments. Correspond to the `` tag. data PolyLine = PolyLine { _polyLineDrawAttributes :: DrawAttributes, -- | Geometry definition of the polyline. -- correspond to the `points` attribute _polyLinePoints :: [RPoint] } deriving (Eq, Show, Generic) instance WithDefaultSvg PolyLine where defaultSvg = PolyLine mempty mempty -- | Primitive decriving polygon composed -- of segements. Correspond to the `` -- tag data Polygon = Polygon { _polygonDrawAttributes :: DrawAttributes, -- | Points of the polygon. Correspond to -- the `points` attributes. _polygonPoints :: [RPoint] } deriving (Eq, Show, Generic) instance WithDefaultSvg Polygon where defaultSvg = Polygon mempty mempty -- | Define a simple line. Correspond to the -- `` tag. data Line = Line { _lineDrawAttributes :: DrawAttributes, -- | First point of the the line, correspond -- to the `x1` and `y1` attributes. _linePoint1 :: !Point, -- | Second point of the the line, correspond -- to the `x2` and `y2` attributes. _linePoint2 :: !Point } deriving (Eq, Show, Generic) instance WithDefaultSvg Line where defaultSvg = Line { _lineDrawAttributes = mempty, _linePoint1 = zeroPoint, _linePoint2 = zeroPoint } where zeroPoint = (Num 0, Num 0) -- | Define a rectangle. Correspond to -- `` svg tag. data Rectangle = Rectangle { _rectangleDrawAttributes :: DrawAttributes, -- | Upper left corner of the rectangle, correspond -- to the attributes `x` and `y`. _rectUpperLeftCorner :: !Point, -- | Rectangle width, correspond, strangely, to -- the `width` attribute. _rectWidth :: !(Maybe Number), -- | Rectangle height, correspond, amazingly, to -- the `height` attribute. _rectHeight :: !(Maybe Number), -- | Define the rounded corner radius radius -- of the rectangle. Correspond to the `rx` and -- `ry` attributes. _rectCornerRadius :: !(Maybe Number, Maybe Number) } deriving (Eq, Show, Generic) instance WithDefaultSvg Rectangle where defaultSvg = Rectangle { _rectangleDrawAttributes = mempty, _rectUpperLeftCorner = (Num 0, Num 0), _rectWidth = Nothing, _rectHeight = Nothing, _rectCornerRadius = (Nothing, Nothing) } -- | Type mapping the `` svg tag. data Path = Path { _pathDrawAttributes :: DrawAttributes, -- | Definition of the path, correspond to the -- `d` attributes. _pathDefinition :: [PathCommand] } deriving (Eq, Show, Generic) instance WithDefaultSvg Path where defaultSvg = Path mempty mempty -- | Define a SVG group, corresponding `` tag. data Group = Group { _groupDrawAttributes :: DrawAttributes, -- | Content of the group, corresponding to all the tags -- inside the `` tag. _groupChildren :: ![Tree], -- | Mapped to the attribute `viewBox` _groupViewBox :: !(Maybe (Double, Double, Double, Double)), -- | used for symbols only _groupAspectRatio :: !PreserveAspectRatio } deriving (Eq, Show, Generic) instance WithDefaultSvg Group where defaultSvg = Group { _groupDrawAttributes = mempty, _groupChildren = [], _groupViewBox = Nothing, _groupAspectRatio = defaultSvg } -- | Define the `` tag. data Filter = Filter { _filterDrawAttributes :: DrawAttributes, _filterSelfAttributes :: !FilterAttributes, _filterChildren :: ![FilterElement] } deriving (Eq, Show, Generic) instance WithDefaultSvg Filter where defaultSvg = Filter { _filterDrawAttributes = mempty, _filterSelfAttributes = defaultSvg, _filterChildren = [] } -- | Define a ``. data Circle = Circle { _circleDrawAttributes :: DrawAttributes, -- | Define the center of the circle, describe -- the `cx` and `cy` attributes. _circleCenter :: !Point, -- | Radius of the circle, equivalent to the `r` -- attribute. _circleRadius :: !Number } deriving (Eq, Show, Generic) instance WithDefaultSvg Circle where defaultSvg = Circle { _circleDrawAttributes = mempty, _circleCenter = (Num 0, Num 0), _circleRadius = Num 0 } -- | Define an `` data Ellipse = Ellipse { _ellipseDrawAttributes :: DrawAttributes, -- | Center of the ellipse, map to the `cx` -- and `cy` attributes. _ellipseCenter :: !Point, -- | Radius along the X axis, map the -- `rx` attribute. _ellipseXRadius :: !Number, -- | Radius along the Y axis, map the -- `ry` attribute. _ellipseYRadius :: !Number } deriving (Eq, Show, Generic) instance WithDefaultSvg Ellipse where defaultSvg = Ellipse { _ellipseDrawAttributes = mempty, _ellipseCenter = (Num 0, Num 0), _ellipseXRadius = Num 0, _ellipseYRadius = Num 0 } -- | Define a color stop for the gradients. Represent -- the `` SVG tag. data GradientStop = GradientStop { -- | Gradient offset between 0 and 1, correspond -- to the `offset` attribute. _gradientOffset :: !Float, -- | Color of the gradient stop. Correspond -- to the `stop-color` attribute. _gradientColor :: !PixelRGBA8, -- | Path command used in mesh patch _gradientPath :: !(Maybe GradientPathCommand), -- | Stop color opacity _gradientOpacity :: !(Maybe Float) } deriving (Eq, Show, Generic) instance WithDefaultSvg GradientStop where defaultSvg = GradientStop { _gradientOffset = 0.0, _gradientColor = PixelRGBA8 0 0 0 255, _gradientPath = Nothing, _gradientOpacity = Nothing } -- | Define `` SVG tag data MeshGradientPatch = MeshGradientPatch { -- | List of stop, from 2 to 4 in a patch _meshGradientPatchStops :: ![GradientStop] } deriving (Eq, Show, Generic) instance WithDefaultSvg MeshGradientPatch where defaultSvg = MeshGradientPatch [] -- | Define a `` tag. data MeshGradientRow = MeshGradientRow { -- | List of patch in a row _meshGradientRowPatches :: ![MeshGradientPatch] } deriving (Eq, Show, Generic) instance WithDefaultSvg MeshGradientRow where defaultSvg = MeshGradientRow [] -- | Define a `` tag. data MeshGradient = MeshGradient { _meshGradientDrawAttributes :: DrawAttributes, -- | Original x coordinate of the mesh gradient _meshGradientX :: !Number, -- | Original y coordinate of the mesh gradient _meshGradientY :: !Number, -- | Type of color interpolation to use _meshGradientType :: !MeshGradientType, -- | Coordiante system to use _meshGradientUnits :: !CoordinateUnits, -- | Optional transform _meshGradientTransform :: ![Transformation], -- | List of patch rows in the the mesh. _meshGradientRows :: ![MeshGradientRow] } deriving (Eq, Show, Generic) instance WithDefaultSvg MeshGradient where defaultSvg = MeshGradient { _meshGradientDrawAttributes = mempty, _meshGradientX = Percent 0, _meshGradientY = Percent 0, _meshGradientType = GradientBilinear, _meshGradientUnits = CoordBoundingBox, _meshGradientTransform = mempty, _meshGradientRows = mempty } -- | Define an `` tag. data Image = Image { _imageDrawAttributes :: DrawAttributes, -- | Position of the image referenced by its -- upper left corner. _imageCornerUpperLeft :: !Point, -- | Image width _imageWidth :: !Number, -- | Image Height _imageHeight :: !Number, -- | Image href, pointing to the real image. _imageHref :: !String, -- | preserveAspectRatio attribute _imageAspectRatio :: !PreserveAspectRatio } deriving (Eq, Show, Generic) instance WithDefaultSvg Image where defaultSvg = Image { _imageDrawAttributes = mempty, _imageCornerUpperLeft = (Num 0, Num 0), _imageWidth = Num 0, _imageHeight = Num 0, _imageHref = "", _imageAspectRatio = defaultSvg } -- | Define an `` for a named content. -- Every named content can be reused in the -- document using this element. data Use = Use { _useDrawAttributes :: DrawAttributes, -- | Position where to draw the "used" element. -- Correspond to the `x` and `y` attributes. _useBase :: Point, -- | Referenced name, correspond to `xlink:href` -- attribute. _useName :: String, -- | Define the width of the region where -- to place the element. Map to the `width` -- attribute. _useWidth :: Maybe Number, -- | Define the height of the region where -- to place the element. Map to the `height` -- attribute. _useHeight :: Maybe Number } deriving (Eq, Show, Generic) instance WithDefaultSvg Use where defaultSvg = Use { _useDrawAttributes = mempty, _useBase = (Num 0, Num 0), _useName = "", _useWidth = Nothing, _useHeight = Nothing } -- | Define position information associated to -- `` or `` svg tag. data TextInfo = TextInfo { -- | `x` attribute. _textInfoX :: ![Number], -- | `y` attribute. _textInfoY :: ![Number], -- | `dx` attribute. _textInfoDX :: ![Number], -- | `dy` attribute. _textInfoDY :: ![Number], -- | `rotate` attribute. _textInfoRotate :: ![Double], -- | `textLength` attribute. _textInfoLength :: !(Maybe Number) } deriving (Eq, Show, Generic) instance Semigroup TextInfo where (<>) (TextInfo x1 y1 dx1 dy1 r1 l1) (TextInfo x2 y2 dx2 dy2 r2 l2) = TextInfo (x1 <> x2) (y1 <> y2) (dx1 <> dx2) (dy1 <> dy2) (r1 <> r2) (getLast $ Last l1 <> Last l2) instance Monoid TextInfo where mempty = TextInfo [] [] [] [] [] Nothing mappend = (<>) instance WithDefaultSvg TextInfo where defaultSvg = mempty -- | Define the content of a `` tag. data TextSpanContent = -- | Raw text SpanText !T.Text | -- | Equivalent to a `` SpanTextRef !String | -- | Define a `` SpanSub !TextSpan deriving (Eq, Show, Generic) -- | Define a `` tag. data TextSpan = TextSpan { -- | Placing information for the text. _spanInfo :: !TextInfo, -- | Drawing attributes for the text span. _spanDrawAttributes :: !DrawAttributes, -- | Content of the span. _spanContent :: ![TextSpanContent] } deriving (Eq, Show, Generic) instance WithDefaultSvg TextSpan where defaultSvg = TextSpan { _spanInfo = defaultSvg, _spanDrawAttributes = mempty, _spanContent = mempty } -- | Describe the content of the `method` attribute on -- text path. data TextPathMethod = -- | Map to the `align` value. TextPathAlign | -- | Map to the `stretch` value. TextPathStretch deriving (Eq, Show, Generic) -- | Describe the content of the `spacing` text path -- attribute. data TextPathSpacing = -- | Map to the `exact` value. TextPathSpacingExact | -- | Map to the `auto` value. TextPathSpacingAuto deriving (Eq, Show, Generic) -- | Describe the `` SVG tag. data TextPath = TextPath { -- | Define the beginning offset on the path, -- the `startOffset` attribute. _textPathStartOffset :: !Number, -- | Define the `xlink:href` attribute. _textPathName :: !String, -- | Correspond to the `method` attribute. _textPathMethod :: !TextPathMethod, -- | Correspond to the `spacing` attribute. _textPathSpacing :: !TextPathSpacing } deriving (Eq, Show, Generic) instance WithDefaultSvg TextPath where defaultSvg = TextPath { _textPathStartOffset = Num 0, _textPathName = mempty, _textPathMethod = TextPathAlign, _textPathSpacing = TextPathSpacingExact } -- | Define the possible values of the `lengthAdjust` -- attribute. data TextAdjust = -- | Value `spacing` TextAdjustSpacing | -- | Value `spacingAndGlyphs` TextAdjustSpacingAndGlyphs deriving (Eq, Show, Generic) -- | Define the global `` SVG tag. data Text = Text { -- | Define the `lengthAdjust` attribute. _textAdjust :: !TextAdjust, -- | Root of the text content. _textRoot :: !TextSpan } deriving (Eq, Show, Generic) -- | Little helper to create a SVG text at a given -- baseline position. textAt :: Point -> T.Text -> Text textAt (x, y) txt = Text TextAdjustSpacing tspan where tspan = defaultSvg { _spanContent = [SpanText txt], _spanInfo = defaultSvg { _textInfoX = [x], _textInfoY = [y] } } instance WithDefaultSvg Text where defaultSvg = Text { _textRoot = defaultSvg, _textAdjust = TextAdjustSpacing } -- | Main type for the scene description, reorient to -- specific type describing each tag. data Tree = CachedTree { _treeBranch :: TreeBranch, _treeHash :: Int } deriving (Eq, Show, Generic) data TreeBranch = NoNode | UseNode { useInformation :: !Use, useSubTree :: !(Maybe Tree) } | GroupNode !Group | SymbolNode !Group | DefinitionNode !Group | FilterNode !Filter | PathNode !Path | CircleNode !Circle | PolyLineNode !PolyLine | PolygonNode !Polygon | EllipseNode !Ellipse | LineNode !Line | RectangleNode !Rectangle | TextNode !(Maybe TextPath) !Text | ImageNode !Image | LinearGradientNode !LinearGradient | RadialGradientNode !RadialGradient | MeshGradientNode !MeshGradient | PatternNode !Pattern | MarkerNode !Marker | MaskNode !Mask | ClipPathNode !ClipPath | SvgNode !Document deriving (Eq, Show, Generic) instance WithDefaultSvg TreeBranch where defaultSvg = NoNode data FilterElement = FEBlend Blend -- SVG Basic --DONE | FEColorMatrix ColorMatrix -- SVG Basic --DONE | FEComponentTransfer ComponentTransfer -- Need -- SVG Basic --DONE --Parser not working | FEComposite Composite -- SVG Basic --DONE | FEConvolveMatrix ConvolveMatrix --DONE -- No parser | FEDiffuseLighting DiffuseLighting --DONE -- No parser | FEDisplacementMap DisplacementMap --DONE | FEDropShadow DropShadow --DONE -- No parser | FEFlood Flood -- SVG Basic --DONE | FEFuncA FuncA -- Need -- SVG Basic --DONE | FEFuncB FuncB -- SVG Basic --DONE | FEFuncG FuncG -- SVG Basic --DONE | FEFuncR FuncR -- SVG Basic --DONE | FEGaussianBlur GaussianBlur -- SVG Basic --DONE | FEImage ImageF -- SVG Basic --DONE --Parser not working | FEMerge Merge -- SVG Basic --DONE | FEMergeNode MergeNode -- SVG Basic --DONE | FEMorphology Morphology --DONE -- No parser | FEOffset Offset -- SVG Basic --DONE | FESpecularLighting SpecularLighting --DONE -- No parser | FETile Tile -- SVG Basic --DONE | FETurbulence Turbulence --DONE | FENone deriving (Eq, Show, Generic) instance WithDefaultSvg FilterElement where defaultSvg = FENone data SpecularLighting = SpecularLighting { _specLightingDrawAttributes :: DrawAttributes, _specLightingFilterAttr :: !FilterAttributes, _specLightingIn :: !(Last FilterSource), _specLightingSurfaceScale :: Double, _specLightingSpecularConst :: Double, _specLightingSpecularExp :: Double, _specLightingKernelUnitLength :: NumberOptionalNumber } deriving (Eq, Show, Generic) instance WithDefaultSvg SpecularLighting where defaultSvg = SpecularLighting { _specLightingDrawAttributes = defaultSvg, _specLightingFilterAttr = defaultSvg, _specLightingIn = Last Nothing, _specLightingSurfaceScale = 1, _specLightingSpecularConst = 1, _specLightingSpecularExp = 1, _specLightingKernelUnitLength = Num1 0 } data ConvolveMatrix = ConvolveMatrix { _convolveMatrixDrawAttributes :: DrawAttributes, _convolveMatrixFilterAttr :: !FilterAttributes, _convolveMatrixIn :: !(Last FilterSource), _convolveMatrixOrder :: NumberOptionalNumber, _convolveMatrixKernelMatrix :: [Double], _convolveMatrixDivisor :: Double, _convolveMatrixBias :: Double, _convolveMatrixTargetX :: Int, _convolveMatrixTargetY :: Int, _convolveMatrixEdgeMode :: EdgeMode, _convolveMatrixKernelUnitLength :: NumberOptionalNumber, _convolveMatrixPreserveAlpha :: Bool } deriving (Eq, Show, Generic) instance WithDefaultSvg ConvolveMatrix where defaultSvg = ConvolveMatrix { _convolveMatrixDrawAttributes = defaultSvg, _convolveMatrixFilterAttr = defaultSvg, _convolveMatrixIn = Last Nothing, _convolveMatrixOrder = Num1 3, _convolveMatrixKernelMatrix = [], _convolveMatrixDivisor = 1, _convolveMatrixBias = 0, _convolveMatrixTargetX = 1, _convolveMatrixTargetY = 1, _convolveMatrixEdgeMode = EdgeDuplicate, _convolveMatrixKernelUnitLength = Num1 0, _convolveMatrixPreserveAlpha = False } data DiffuseLighting = DiffuseLighting { _diffuseLightingDrawAttributes :: DrawAttributes, _diffuseLightingFilterAttr :: !FilterAttributes, _diffuseLightingIn :: !(Last FilterSource), _diffuseLightingSurfaceScale :: Double, _diffuseLightingDiffuseConst :: Double, _diffuseLightingKernelUnitLength :: NumberOptionalNumber } deriving (Eq, Show, Generic) instance WithDefaultSvg DiffuseLighting where defaultSvg = DiffuseLighting { _diffuseLightingDrawAttributes = defaultSvg, _diffuseLightingFilterAttr = defaultSvg, _diffuseLightingIn = Last Nothing, _diffuseLightingSurfaceScale = 1, _diffuseLightingDiffuseConst = 1, _diffuseLightingKernelUnitLength = Num1 0 } data Morphology = Morphology { _morphologyDrawAttributes :: DrawAttributes, _morphologyFilterAttr :: !FilterAttributes, _morphologyIn :: !(Last FilterSource), _morphologyOperator :: OperatorType, _morphologyRadius :: NumberOptionalNumber } deriving (Eq, Show, Generic) instance WithDefaultSvg Morphology where defaultSvg = Morphology { _morphologyDrawAttributes = defaultSvg, _morphologyFilterAttr = defaultSvg, _morphologyIn = Last Nothing, _morphologyOperator = OperatorOver, _morphologyRadius = Num1 0 } data DropShadow = DropShadow { _dropShadowDrawAttributes :: DrawAttributes, _dropShadowFilterAttr :: !FilterAttributes, _dropShadowDx :: Double, _dropShadowDy :: Double, _dropShadowStdDeviation :: NumberOptionalNumber } deriving (Eq, Show, Generic) instance WithDefaultSvg DropShadow where defaultSvg = DropShadow { _dropShadowDrawAttributes = defaultSvg, _dropShadowFilterAttr = defaultSvg, _dropShadowDx = 2, _dropShadowDy = 2, _dropShadowStdDeviation = Num1 0 } data OperatorType = OperatorOver | OperatorIn | OperatorOut | OperatorAtop | OperatorXor | OperatorLighter | OperatorArithmetic deriving (Eq, Show, Generic) data NumberOptionalNumber = Num1 Double | Num2 Double Double deriving (Eq, Show, Generic) data ImageF = ImageF { _imageFDrawAttributes :: DrawAttributes, _imageFFilterAttr :: !FilterAttributes, _imageFHref :: !String, _imageFAspectRatio :: !PreserveAspectRatio } deriving (Eq, Show, Generic) instance WithDefaultSvg ImageF where defaultSvg = ImageF { _imageFDrawAttributes = defaultSvg, _imageFFilterAttr = defaultSvg, _imageFHref = "", _imageFAspectRatio = defaultSvg } data TransferFunctionType = TFIdentity | TFTable | TFDiscrete | TFLinear | TFGamma deriving (Eq, Show, Generic) data TransferFunction = TransferFunction { _transferFunctionDrawAttributes :: !DrawAttributes, _transferFunctionFilterAttr :: !FilterAttributes, _transferFunctionType :: TransferFunctionType, _transferFunctionTableValues :: [Double], _transferFunctionSlope :: Double, _transferFunctionIntercept :: Double, _transferFunctionAmplitude :: Double, _transferFunctionExponent :: Double, _transferFunctionOffset :: Double } deriving (Eq, Show, Generic) data ChannelSelector = ChannelR | ChannelG | ChannelB | ChannelA deriving (Eq, Show, Generic) data DisplacementMap = DisplacementMap { _displacementMapDrawAttributes :: !DrawAttributes, _displacementMapFilterAttr :: !FilterAttributes, _displacementMapIn :: !(Last FilterSource), _displacementMapIn2 :: !(Last FilterSource), _displacementMapScale :: !(Last Double), _displacementMapXChannelSelector :: ChannelSelector, _displacementMapYChannelSelector :: ChannelSelector } deriving (Eq, Show, Generic) instance WithDefaultSvg DisplacementMap where defaultSvg = DisplacementMap { _displacementMapDrawAttributes = defaultSvg, _displacementMapFilterAttr = defaultSvg, _displacementMapIn = Last Nothing, _displacementMapIn2 = Last Nothing, _displacementMapScale = Last Nothing, _displacementMapXChannelSelector = ChannelA, _displacementMapYChannelSelector = ChannelA } data BlendMode = Normal | Multiply | Screen | Overlay | Darken | Lighten | ColorDodge | ColorBurn | HardLight | SoftLight | Difference | Exclusion | Hue | Saturation | Color | Luminosity deriving (Eq, Show, Generic) data Blend = Blend { _blendDrawAttributes :: !DrawAttributes, _blendFilterAttr :: !FilterAttributes, _blendIn :: !(Last FilterSource), _blendIn2 :: !(Last FilterSource), _blendMode :: !BlendMode } deriving (Eq, Show, Generic) instance WithDefaultSvg Blend where defaultSvg = Blend { _blendDrawAttributes = defaultSvg, _blendFilterAttr = defaultSvg, _blendIn = Last Nothing, _blendIn2 = Last Nothing, _blendMode = Normal } data Flood = Flood { _floodDrawAttributes :: !DrawAttributes, _floodFilterAttr :: !FilterAttributes, _floodColor :: !PixelRGBA8, _floodOpacity :: !(Maybe Double) } deriving (Eq, Show, Generic) instance WithDefaultSvg Flood where defaultSvg = Flood { _floodDrawAttributes = defaultSvg, _floodFilterAttr = defaultSvg, _floodColor = PixelRGBA8 0 0 0 255, _floodOpacity = Just 1.0 } data Offset = Offset { _offsetDrawAttributes :: !DrawAttributes, _offsetFilterAttr :: !FilterAttributes, _offsetIn :: !(Last FilterSource), _offsetDX :: !Number, _offsetDY :: !Number } deriving (Eq, Show, Generic) instance WithDefaultSvg Offset where defaultSvg = Offset { _offsetDrawAttributes = defaultSvg, _offsetFilterAttr = defaultSvg, _offsetIn = Last Nothing, _offsetDX = Num 0, _offsetDY = Num 0 } data Tile = Tile { _tileDrawAttributes :: !DrawAttributes, _tileFilterAttr :: !FilterAttributes, _tileIn :: !(Last FilterSource) } deriving (Eq, Show, Generic) instance WithDefaultSvg Tile where defaultSvg = Tile { _tileDrawAttributes = defaultSvg, _tileFilterAttr = defaultSvg, _tileIn = Last Nothing } data Merge = Merge { _mergeDrawAttributes :: !DrawAttributes, _mergeFilterAttributes :: !FilterAttributes, _mergeChildren :: ![FilterElement] } deriving (Eq, Show, Generic) instance WithDefaultSvg Merge where defaultSvg = Merge { _mergeDrawAttributes = defaultSvg, _mergeFilterAttributes = defaultSvg, _mergeChildren = [] } data MergeNode = MergeNode { _mergeNodeDrawAttributes :: !DrawAttributes, --Does not have filter attributes! _mergeNodeIn :: !(Last FilterSource) } deriving (Eq, Show, Generic) instance WithDefaultSvg MergeNode where defaultSvg = MergeNode { _mergeNodeDrawAttributes = defaultSvg, _mergeNodeIn = Last Nothing } data ComponentTransfer = ComponentTransfer { _compTransferDrawAttributes :: !DrawAttributes, _compTransferFilterAttr :: !FilterAttributes, _compTransferChildren :: ![FilterElement], _compTransferIn :: !(Last FilterSource) } deriving (Eq, Show, Generic) instance WithDefaultSvg ComponentTransfer where defaultSvg = ComponentTransfer { _compTransferDrawAttributes = defaultSvg, _compTransferFilterAttr = defaultSvg, _compTransferChildren = [], _compTransferIn = Last Nothing } data FuncType = FIdentity | FTable | FDiscrete | FLinear | FGamma deriving (Eq, Show, Generic) data FuncA = FuncA { _funcADrawAttributes :: !DrawAttributes, --Does not have filter attributes! _funcAType :: !FuncType, _funcATableValues :: ![Number], _funcASlope :: !Number, _funcAIntercept :: !Number, _funcAAmplitude :: !Number, _funcAExponent :: !Number --_funcAOffset :: _ -- This appears in the documentation, but no details are given. } deriving (Eq, Show, Generic) instance WithDefaultSvg FuncA where defaultSvg = FuncA { _funcADrawAttributes = defaultSvg, _funcAType = FIdentity, -- Standard does not define a default value. _funcATableValues = [], _funcASlope = Num 0, _funcAIntercept = Num 0, _funcAAmplitude = Num 1, _funcAExponent = Num 1 } data FuncR = FuncR { _funcRDrawAttributes :: !DrawAttributes, --Does not have filter attributes! _funcRType :: !FuncType, _funcRTableValues :: ![Number], _funcRSlope :: !Number, _funcRIntercept :: !Number, _funcRAmplitude :: !Number, _funcRExponent :: !Number --_funcAOffset :: _ -- This appears in the documentation, but no details are given. } deriving (Eq, Show, Generic) instance WithDefaultSvg FuncR where defaultSvg = FuncR { _funcRDrawAttributes = defaultSvg, _funcRType = FIdentity, -- Standard does not define a default value. _funcRTableValues = [], _funcRSlope = Num 0, _funcRIntercept = Num 0, _funcRAmplitude = Num 1, _funcRExponent = Num 1 } data FuncG = FuncG { _funcGDrawAttributes :: !DrawAttributes, --Does not have filter attributes! _funcGType :: !FuncType, _funcGTableValues :: ![Number], _funcGSlope :: !Number, _funcGIntercept :: !Number, _funcGAmplitude :: !Number, _funcGExponent :: !Number --_funcAOffset :: _ -- This appears in the documentation, but no details are given. } deriving (Eq, Show, Generic) instance WithDefaultSvg FuncG where defaultSvg = FuncG { _funcGDrawAttributes = defaultSvg, _funcGType = FIdentity, -- Standard does not define a default value. _funcGTableValues = [], _funcGSlope = Num 0, _funcGIntercept = Num 0, _funcGAmplitude = Num 1, _funcGExponent = Num 1 } data FuncB = FuncB { _funcBDrawAttributes :: !DrawAttributes, --Does not have filter attributes! _funcBType :: !FuncType, _funcBTableValues :: ![Number], _funcBSlope :: !Number, _funcBIntercept :: !Number, _funcBAmplitude :: !Number, _funcBExponent :: !Number --_funcAOffset :: _ -- This appears in the documentation, but no details are given. } deriving (Eq, Show, Generic) instance WithDefaultSvg FuncB where defaultSvg = FuncB { _funcBDrawAttributes = defaultSvg, _funcBType = FIdentity, -- Standard does not define a default value. _funcBTableValues = [], _funcBSlope = Num 0, _funcBIntercept = Num 0, _funcBAmplitude = Num 1, _funcBExponent = Num 1 } data ColorMatrixType = Matrix | Saturate | HueRotate | LuminanceToAlpha deriving (Eq, Show, Generic) data ColorMatrix = ColorMatrix { _colorMatrixDrawAttributes :: !DrawAttributes, _colorMatrixFilterAttr :: !FilterAttributes, _colorMatrixIn :: !(Last FilterSource), _colorMatrixType :: !ColorMatrixType, _colorMatrixValues :: !String } deriving (Eq, Show, Generic) instance WithDefaultSvg ColorMatrix where defaultSvg = ColorMatrix { _colorMatrixDrawAttributes = defaultSvg, _colorMatrixFilterAttr = defaultSvg, _colorMatrixIn = Last Nothing, _colorMatrixType = Matrix, _colorMatrixValues = "" } data CompositeOperator = CompositeOver -- this is default | CompositeIn | CompositeOut | CompositeAtop | CompositeXor | CompositeArithmetic deriving (Eq, Show, Generic) data Composite = Composite { _compositeDrawAttributes :: DrawAttributes, _compositeFilterAttr :: !FilterAttributes, _compositeIn :: Last FilterSource, _compositeIn2 :: Last FilterSource, _compositeOperator :: CompositeOperator, _compositeK1 :: Number, _compositeK2 :: Number, _compositeK3 :: Number, _compositeK4 :: Number } deriving (Eq, Show, Generic) instance WithDefaultSvg Composite where defaultSvg = Composite { _compositeDrawAttributes = defaultSvg, _compositeFilterAttr = defaultSvg, _compositeIn = Last Nothing, _compositeIn2 = Last Nothing, _compositeOperator = CompositeOver, _compositeK1 = Num 0, _compositeK2 = Num 0, _compositeK3 = Num 0, _compositeK4 = Num 0 } data Turbulence = Turbulence { _turbulenceDrawAttributes :: !DrawAttributes, _turbulenceFilterAttr :: !FilterAttributes, _turbulenceBaseFrequency :: !(Double, Last Double), -- Not negative _turbulenceNumOctaves :: Int, -- Not negative _turbulenceSeed :: Double, _turbulenceStitchTiles :: StitchTiles, _turbulenceType :: TurbulenceType } deriving (Eq, Show, Generic) data StitchTiles = NoStitch | Stitch deriving (Eq, Show, Generic) data TurbulenceType = FractalNoiseType | TurbulenceType deriving (Eq, Show, Generic) instance WithDefaultSvg Turbulence where defaultSvg = Turbulence { _turbulenceDrawAttributes = defaultSvg, _turbulenceFilterAttr = defaultSvg, _turbulenceBaseFrequency = (0, Last Nothing), _turbulenceNumOctaves = 1, _turbulenceSeed = 0, _turbulenceStitchTiles = NoStitch, _turbulenceType = TurbulenceType } data EdgeMode = EdgeDuplicate | EdgeWrap | EdgeNone deriving (Eq, Show, Generic) data GaussianBlur = GaussianBlur { _gaussianBlurDrawAttributes :: DrawAttributes, _gaussianBlurFilterAttr :: !FilterAttributes, _gaussianBlurIn :: Last FilterSource, _gaussianBlurStdDeviationX :: Number, _gaussianBlurStdDeviationY :: Last Number, _gaussianBlurEdgeMode :: EdgeMode } deriving (Eq, Show, Generic) instance WithDefaultSvg GaussianBlur where defaultSvg = GaussianBlur { _gaussianBlurDrawAttributes = defaultSvg, _gaussianBlurFilterAttr = defaultSvg, _gaussianBlurIn = Last Nothing, _gaussianBlurStdDeviationX = Num 0, _gaussianBlurStdDeviationY = Last Nothing, _gaussianBlurEdgeMode = EdgeDuplicate } -- | Define the orientation, associated to the -- `orient` attribute on the Marker data MarkerOrientation = -- | Auto value OrientationAuto | -- | Specific angle. OrientationAngle Coord deriving (Eq, Show, Generic) -- | Define the content of the `markerUnits` attribute -- on the Marker. data MarkerUnit = -- | Value `strokeWidth` MarkerUnitStrokeWidth | -- | Value `userSpaceOnUse` MarkerUnitUserSpaceOnUse deriving (Eq, Show, Generic) -- | Define the content of the `markerUnits` attribute -- on the Marker. data Overflow = -- | Value `visible` OverflowVisible | -- | Value `hidden` OverflowHidden deriving (Eq, Show, Generic) -- | Define the `` tag. data Marker = Marker { _markerDrawAttributes :: DrawAttributes, -- | Define the reference point of the marker. -- correspond to the `refX` and `refY` attributes. _markerRefPoint :: !(Number, Number), -- | Define the width of the marker. Correspond to -- the `markerWidth` attribute. _markerWidth :: !(Maybe Number), -- | Define the height of the marker. Correspond to -- the `markerHeight` attribute. _markerHeight :: !(Maybe Number), -- | Correspond to the `orient` attribute. _markerOrient :: !(Maybe MarkerOrientation), -- | Map the `markerUnits` attribute. _markerUnits :: !(Maybe MarkerUnit), -- | Optional viewbox _markerViewBox :: !(Maybe (Double, Double, Double, Double)), -- | Elements defining the marker. _markerOverflow :: !(Maybe Overflow), -- | preserveAspectRatio attribute _markerAspectRatio :: !PreserveAspectRatio, -- | Elements defining the marker. _markerElements :: [Tree] } deriving (Eq, Show, Generic) instance WithDefaultSvg Marker where defaultSvg = Marker { _markerDrawAttributes = mempty, _markerRefPoint = (Num 0, Num 0), _markerWidth = Just (Num 3), _markerHeight = Just (Num 3), _markerOrient = Nothing, -- MarkerOrientation _markerUnits = Nothing, -- MarkerUnitStrokeWidth _markerViewBox = Nothing, _markerOverflow = Nothing, _markerElements = mempty, _markerAspectRatio = defaultSvg } -- | For every element of a svg tree, associate -- it's SVG tag name. nameOfTree :: Tree -> T.Text nameOfTree v = case _treeBranch v of NoNode -> "" UseNode _ _ -> "use" GroupNode _ -> "g" SymbolNode _ -> "symbol" DefinitionNode _ -> "defs" FilterNode _ -> "filter" PathNode _ -> "path" CircleNode _ -> "circle" PolyLineNode _ -> "polyline" PolygonNode _ -> "polygon" EllipseNode _ -> "ellipse" LineNode _ -> "line" RectangleNode _ -> "rectangle" TextNode _ _ -> "text" ImageNode _ -> "image" LinearGradientNode _ -> "lineargradient" RadialGradientNode _ -> "radialgradient" MeshGradientNode _ -> "meshgradient" PatternNode _ -> "pattern" MarkerNode _ -> "marker" MaskNode _ -> "mask" ClipPathNode _ -> "clipPath" SvgNode {} -> "svg" -- | Define the possible values for the `spreadMethod` -- values used for the gradient definitions. data Spread = -- | `reapeat` value SpreadRepeat | -- | `pad` value SpreadPad | -- | `reflect value` SpreadReflect deriving (Eq, Show, Generic) -- | Define a `` tag. data LinearGradient = LinearGradient { _linearGradientDrawAttributes :: DrawAttributes, -- | Define coordinate system of the gradient, -- associated to the `gradientUnits` attribute. _linearGradientUnits :: CoordinateUnits, -- | Point defining the beginning of the line gradient. -- Associated to the `x1` and `y1` attribute. _linearGradientStart :: Point, -- | Point defining the end of the line gradient. -- Associated to the `x2` and `y2` attribute. _linearGradientStop :: Point, -- | Define how to handle the values outside -- the gradient start and stop. Associated to the -- `spreadMethod` attribute. _linearGradientSpread :: Spread, -- | Define the transformation to apply to the -- gradient points. Associated to the `gradientTransform` -- attribute. _linearGradientTransform :: [Transformation], -- | List of color stops of the linear gradient. _linearGradientStops :: [GradientStop] } deriving (Eq, Show, Generic) instance WithDefaultSvg LinearGradient where defaultSvg = LinearGradient { _linearGradientDrawAttributes = mempty, _linearGradientUnits = CoordBoundingBox, _linearGradientStart = (Percent 0, Percent 0), _linearGradientStop = (Percent 1, Percent 0), _linearGradientSpread = SpreadPad, _linearGradientTransform = [], _linearGradientStops = [] } -- | Define a `` tag. data RadialGradient = RadialGradient { _radialGradientDrawAttributes :: DrawAttributes, -- | Define coordinate system of the gradient, -- associated to the `gradientUnits` attribute. _radialGradientUnits :: CoordinateUnits, -- | Center of the radial gradient. Associated to -- the `cx` and `cy` attributes. _radialGradientCenter :: Point, -- | Radius of the radial gradient. Associated to -- the `r` attribute. _radialGradientRadius :: Number, -- | X coordinate of the focus point of the radial -- gradient. Associated to the `fx` attribute. _radialGradientFocusX :: Maybe Number, -- | Y coordinate of the focus point of the radial -- gradient. Associated to the `fy` attribute. _radialGradientFocusY :: Maybe Number, -- | Define how to handle the values outside -- the gradient start and stop. Associated to the -- `spreadMethod` attribute. _radialGradientSpread :: Spread, -- | Define the transformation to apply to the -- gradient points. Associated to the `gradientTransform` -- attribute. _radialGradientTransform :: [Transformation], -- | List of color stops of the radial gradient. _radialGradientStops :: [GradientStop] } deriving (Eq, Show, Generic) instance WithDefaultSvg RadialGradient where defaultSvg = RadialGradient { _radialGradientDrawAttributes = mempty, _radialGradientUnits = CoordBoundingBox, _radialGradientCenter = (Percent 0.5, Percent 0.5), _radialGradientRadius = Percent 0.5, _radialGradientFocusX = Nothing, _radialGradientFocusY = Nothing, _radialGradientSpread = SpreadPad, _radialGradientTransform = [], _radialGradientStops = [] } -- | Define a SVG `` tag. data Mask = Mask { _maskDrawAttributes :: DrawAttributes, -- | Correspond to the `maskContentUnits` attributes. _maskContentUnits :: CoordinateUnits, -- | Mapping to the `maskUnits` attribute. _maskUnits :: CoordinateUnits, -- | Map to the `x` and `y` attributes. _maskPosition :: Point, -- | Map to the `width` attribute _maskWidth :: Number, -- | Map to the `height` attribute. _maskHeight :: Number, -- | Children of the `` tag. _maskContent :: [Tree] } deriving (Eq, Show, Generic) instance WithDefaultSvg Mask where defaultSvg = Mask { _maskDrawAttributes = mempty, _maskContentUnits = CoordUserSpace, _maskUnits = CoordBoundingBox, _maskPosition = (Percent (-0.1), Percent (-0.1)), _maskWidth = Percent 1.2, _maskHeight = Percent 1.2, _maskContent = [] } -- | Define a `` tag. data ClipPath = ClipPath { _clipPathDrawAttributes :: DrawAttributes, -- | Maps to the `clipPathUnits` attribute _clipPathUnits :: CoordinateUnits, -- | Maps to the content of the tree _clipPathContent :: [Tree] } deriving (Eq, Show, Generic) instance WithDefaultSvg ClipPath where defaultSvg = ClipPath { _clipPathDrawAttributes = mempty, _clipPathUnits = CoordUserSpace, _clipPathContent = mempty } -- | Define a `` tag. data Pattern = Pattern { _patternDrawAttributes :: DrawAttributes, -- | Possible `viewBox`. _patternViewBox :: !(Maybe (Double, Double, Double, Double)), -- | Width of the pattern tile, mapped to the -- `width` attribute _patternWidth :: !Number, -- | Height of the pattern tile, mapped to the -- `height` attribute _patternHeight :: !Number, -- | Pattern tile base, mapped to the `x` and -- `y` attributes. _patternPos :: !Point, -- | Patterns can be chained, so this is a potential -- reference to another pattern _patternHref :: !String, -- | Elements used in the pattern. _patternElements :: ![Tree], -- | Define the cordinate system to use for -- the pattern. Mapped to the `patternUnits` -- attribute. _patternUnit :: !CoordinateUnits, -- | Value of the "preserveAspectRatio" attribute _patternAspectRatio :: !PreserveAspectRatio, -- | Value of "patternTransform" attribute _patternTransform :: !(Maybe [Transformation]) } deriving (Eq, Show, Generic) instance WithDefaultSvg Pattern where defaultSvg = Pattern { _patternDrawAttributes = mempty, _patternViewBox = Nothing, _patternWidth = Num 0, _patternHeight = Num 0, _patternPos = (Num 0, Num 0), _patternElements = [], _patternUnit = CoordBoundingBox, _patternAspectRatio = defaultSvg, _patternHref = "", _patternTransform = mempty } -- | Sum types helping keeping track of all the namable -- elemens in a SVG document. data Element = ElementLinearGradient LinearGradient | ElementRadialGradient RadialGradient | ElementMeshGradient MeshGradient | ElementGeometry Tree | ElementPattern Pattern | ElementMarker Marker | ElementMask Mask | ElementClipPath ClipPath deriving (Eq, Show, Generic) -- | Represent a full svg document with style, -- geometry and named elements. data Document = Document { _documentViewBox :: Maybe (Double, Double, Double, Double), _documentWidth :: Maybe Number, _documentHeight :: Maybe Number, _documentElements :: [Tree], _documentDescription :: String, _documentLocation :: FilePath, _documentAspectRatio :: PreserveAspectRatio } deriving (Show, Eq, Generic) -- | Calculate the document size in function of the -- different available attributes in the document. documentSize :: Dpi -> Document -> (Int, Int) documentSize _ Document { _documentViewBox = Just (x1, y1, x2, y2), _documentWidth = Just (Percent pw), _documentHeight = Just (Percent ph) } = (floor $ dx * pw, floor $ dy * ph) where dx = abs $ x2 - x1 dy = abs $ y2 - y1 documentSize _ Document { _documentWidth = Just (Num w), _documentHeight = Just (Num h) } = (floor w, floor h) documentSize dpi doc@( Document { _documentWidth = Just w, _documentHeight = Just h } ) = documentSize dpi $ doc { _documentWidth = Just $ toUserUnit dpi w, _documentHeight = Just $ toUserUnit dpi h } documentSize _ Document {_documentViewBox = Just (x1, y1, x2, y2)} = (floor . abs $ x2 - x1, floor . abs $ y2 - y1) documentSize _ _ = (1, 1) mayMerge :: Monoid a => Maybe a -> Maybe a -> Maybe a mayMerge (Just a) (Just b) = Just $ mappend a b mayMerge _ b@(Just _) = b mayMerge a Nothing = a instance Semigroup DrawAttributes where (<>) a b = DrawAttributes { _strokeWidth = (mappend `on` _strokeWidth) a b, _strokeColor = (mappend `on` _strokeColor) a b, _strokeLineCap = (mappend `on` _strokeLineCap) a b, _strokeOpacity = (opacityMappend `on` _strokeOpacity) a b, _strokeLineJoin = (mappend `on` _strokeLineJoin) a b, _strokeMiterLimit = (mappend `on` _strokeMiterLimit) a b, _fillColor = (mappend `on` _fillColor) a b, _fillOpacity = (opacityMappend `on` _fillOpacity) a b, _fontSize = (mappend `on` _fontSize) a b, _transform = (mayMerge `on` _transform) a b, _fillRule = (mappend `on` _fillRule) a b, _attrClass = _attrClass b, _attrId = _attrId b, _groupOpacity = _groupOpacity b, _strokeOffset = (mappend `on` _strokeOffset) a b, _strokeDashArray = (mappend `on` _strokeDashArray) a b, _fontFamily = (mappend `on` _fontFamily) a b, _fontStyle = (mappend `on` _fontStyle) a b, _textAnchor = (mappend `on` _textAnchor) a b, _maskRef = (mappend `on` _maskRef) a b, _clipPathRef = (mappend `on` _clipPathRef) a b, _clipRule = (mappend `on` _clipRule) a b, _markerStart = (mappend `on` _markerStart) a b, _markerMid = (mappend `on` _markerMid) a b, _markerEnd = (mappend `on` _markerEnd) a b, _filterRef = (mappend `on` _filterRef) a b } where opacityMappend Nothing Nothing = Nothing opacityMappend (Just v) Nothing = Just v opacityMappend Nothing (Just v) = Just v opacityMappend (Just v) (Just v2) = Just $ v * v2 instance Monoid DrawAttributes where mappend = (<>) mempty = DrawAttributes { _strokeWidth = Last Nothing, _strokeColor = Last Nothing, _strokeOpacity = Nothing, _strokeLineCap = Last Nothing, _strokeLineJoin = Last Nothing, _strokeMiterLimit = Last Nothing, _fillColor = Last Nothing, _groupOpacity = Nothing, _fillOpacity = Nothing, _fontSize = Last Nothing, _fontFamily = Last Nothing, _fontStyle = Last Nothing, _transform = Nothing, _fillRule = Last Nothing, _attrClass = mempty, _attrId = Nothing, _strokeOffset = Last Nothing, _strokeDashArray = Last Nothing, _textAnchor = Last Nothing, _maskRef = Last Nothing, _clipPathRef = Last Nothing, _clipRule = Last Nothing, _markerStart = Last Nothing, _markerMid = Last Nothing, _markerEnd = Last Nothing, _filterRef = Last Nothing } instance WithDefaultSvg DrawAttributes where defaultSvg = mempty -------------------------------------------------------------------------- --- Template Haskell and HasDrawAttributes instances -------------------------------------------------------------------------- makeLenses ''Rectangle makeLenses ''Pattern makeLenses ''Document makeLenses ''Filter makeLenses ''Line makeLenses ''Polygon makeLenses ''PolyLine makeLenses ''PreserveAspectRatio makeLenses ''Path makeLenses ''Circle makeLenses ''Text makeLenses ''TextPath makeLenses ''Ellipse makeLenses ''MeshGradientPatch makeLenses ''MeshGradientRow makeLenses ''MeshGradient makeLenses ''Image makeLenses ''Use makeLenses ''TextSpan makeLenses ''TextInfo makeLenses ''Marker makeLenses ''GradientStop makeLenses ''LinearGradient makeLenses ''RadialGradient makeLenses ''Mask makeLenses ''ClipPath makeLenses ''Blend makeLenses ''Flood makeLenses ''Tile makeLenses ''Offset makeLenses ''ColorMatrix makeLenses ''Composite makeLenses ''GaussianBlur makeLenses ''Turbulence makeLenses ''DisplacementMap makeLenses ''Merge makeLenses ''MergeNode makeLenses ''Group makeLenses ''ImageF makeLenses ''ComponentTransfer makeLenses ''FuncA makeLenses ''FuncR makeLenses ''FuncG makeLenses ''FuncB makeLenses ''Morphology makeLenses ''SpecularLighting makeLenses ''DropShadow makeLenses ''DiffuseLighting makeLenses ''ConvolveMatrix makeClassy ''FilterAttributes