Dump compound glyph info
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@ -14,6 +14,7 @@
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module Graphics.Fountainhead.Dumper
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( DumpError(..)
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, dumpCmap
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, dumpGlyf
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, dumpHead
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, dumpHmtx
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, dumpHhea
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@ -38,16 +39,20 @@ import qualified Data.Text.Encoding as Text
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import qualified Data.Text.Lazy as Text.Lazy
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import qualified Data.Text.Lazy.Builder as Text.Builder
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import qualified Data.Text.Lazy.Builder.Int as Text.Builder
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import qualified Data.Text.Lazy.Builder.RealFloat as Text.Builder
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import Data.Vector (Vector)
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import qualified Data.Vector as Vector
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import Data.Void
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import GHC.Records (HasField(..))
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import Graphics.Fountainhead.TrueType
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( CmapTable(..)
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, CompoundGlyphDefinition(..)
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, ComponentGlyphPartDescription(..)
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, FontDirectory(..)
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, FontDirectionHint(..)
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, GASPRange(..)
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, GASPTable(..)
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, GlyphArgument(..)
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, HeadTable(..)
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, HheaTable(..)
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, HmtxTable(..)
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@ -61,6 +66,7 @@ import Graphics.Fountainhead.TrueType
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, CmapSubtable(..)
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, CmapFormat4Table(..)
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, FontStyle(..)
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, GlyphArgument(..)
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, GlyphCoordinate(..)
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, GlyphDefinition(..)
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, GlyphDescription(..)
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@ -84,6 +90,8 @@ import Graphics.Fountainhead.TrueType
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, SimpleGlyphDefinition(..)
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, CVTable(..)
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, OutlineFlag(..)
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, ComponentGlyphFlags(..)
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, GlyphTransformationOption(..)
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)
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import qualified Text.Megaparsec as Megaparsec
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import Graphics.Fountainhead.Parser
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@ -102,9 +110,14 @@ import Graphics.Fountainhead.Parser
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, cvTableP
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, glyfTableP
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)
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import Graphics.Fountainhead.Type (Fixed32(..), succIntegral, ttfEpoch)
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import Graphics.Fountainhead.Type
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( Fixed32(..)
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, succIntegral
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, ttfEpoch
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, fixed2Double
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)
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import Data.Foldable (Foldable(..), find)
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import Data.Maybe (fromMaybe)
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import Data.Maybe (fromMaybe, catMaybes)
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import Data.Time (LocalTime(..), NominalDiffTime, diffLocalTime, midnight)
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import Data.Bits (Bits(..), (.>>.))
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import Data.Bifunctor (Bifunctor(first))
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@ -670,7 +683,69 @@ dumpGlyf (GlyfTable glyfDescriptions) = dumpCaption "'glyf' Table - Glyf data"
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<> " Coordinates" <> newlineBuilder
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<> " -----------" <> newlineBuilder
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<> fst (Vector.ifoldl' foldCoordinate mempty coordinates)
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dumpGlyphDefinition _ = "" -- TODO
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dumpGlyphDefinition (CompoundGlyph CompoundGlyphDefinition{..})
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= foldMap (dumpCompoundGlyph $ Vector.length components) (Vector.indexed components)
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<> newlineBuilder <> " Length of Instructions: "
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<> Text.Builder.decimal (Vector.length instructions) <> newlineBuilder
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dumpCompoundGlyph :: Int -> (Int, ComponentGlyphPartDescription) -> Text.Builder.Builder
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dumpCompoundGlyph componentsLength (componentIndex, description) =
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let moreComponents = succ componentIndex < componentsLength
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compoundFlags = dumpCompoundFlags moreComponents description
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ComponentGlyphPartDescription{..} = description
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in " " <> Text.Builder.decimal componentIndex
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<> ": Flags: 0x" <> compoundFlags <> newlineBuilder
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<> " Glyf Index: " <> Text.Builder.decimal glyphIndex <> newlineBuilder
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<> " X" <> dumpArgument argument1 <> newlineBuilder
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<> " Y" <> dumpArgument argument2 <> newlineBuilder
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<> dumpTransformationOption transformationOption
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<> " Others: " <> dumpOtherFlags flags <> newlineBuilder
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<> newlineBuilder -- TODO
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dumpTransformationOption GlyphNoScale = ""
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dumpTransformationOption (GlyphScale scale) =
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" X,Y Scale: " <> Text.Builder.realFloat (fixed2Double scale) <> newlineBuilder
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dumpTransformationOption (GlyphXyScale xScale yScale)
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= " X Scale: " <> Text.Builder.realFloat (fixed2Double xScale) <> newlineBuilder
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<> " Y Scale: " <> Text.Builder.realFloat (fixed2Double yScale) <> newlineBuilder
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dumpTransformationOption (Glyph2By2Scale xScale scale01 scale10 yScale)
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= " X Scale: " <> Text.Builder.realFloat (fixed2Double xScale) <> newlineBuilder
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<> " X,Y Scale: " <> Text.Builder.realFloat (fixed2Double scale01) <> newlineBuilder
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<> " Y,X Scale: " <> Text.Builder.realFloat (fixed2Double scale10) <> newlineBuilder
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<> " Y Scale: " <> Text.Builder.realFloat (fixed2Double yScale) <> newlineBuilder
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dumpOtherFlags ComponentGlyphFlags{..} =
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let roundXyToGridText = if roundXyToGrid then "Round X,Y to Grid " else " "
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useMyMetricsText = if useMyMetrics then "Use My Metrics " else " "
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overlapCompoundText = if overlapCompound then "Overlap " else " "
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in roundXyToGridText <> overlapCompoundText <> useMyMetricsText
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dumpCompoundFlags :: Bool -> ComponentGlyphPartDescription -> Text.Builder.Builder
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dumpCompoundFlags moreComponents ComponentGlyphPartDescription{..} =
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let setBits = glyphArgumentBits argument1
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<> componentFlagBits flags
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<> transformationOptionBits transformationOption
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setBits' = if moreComponents then 5 : setBits else setBits
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in Text.Builder.hexadecimal
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$ foldr (flip setBit) (zeroBits :: Word16) setBits'
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dumpArgument (GlyphInt8Argument argument) =
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" BOffset: " <> Text.Builder.decimal argument
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dumpArgument (GlyphInt16Argument argument) =
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" WOffset: " <> Text.Builder.decimal argument
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dumpArgument (GlyphWord8Argument argument) =
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" BPoint: " <> Text.Builder.decimal argument
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dumpArgument (GlyphWord16Argument argument) =
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" WPoint: " <> Text.Builder.decimal argument
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glyphArgumentBits (GlyphInt16Argument _) = [0, 1]
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glyphArgumentBits (GlyphWord16Argument _) = [0]
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glyphArgumentBits (GlyphInt8Argument _) = [1]
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glyphArgumentBits (GlyphWord8Argument _) = []
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componentFlagBits ComponentGlyphFlags{..} = catMaybes
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[ if roundXyToGrid then Just 2 else Nothing
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, if weHaveInstructions then Just 8 else Nothing
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, if useMyMetrics then Just 9 else Nothing
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, if overlapCompound then Just 10 else Nothing
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]
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transformationOptionBits GlyphScale{} = [3]
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transformationOptionBits GlyphXyScale{} = [6]
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transformationOptionBits Glyph2By2Scale{} = [7]
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transformationOptionBits GlyphNoScale = []
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dumpFlag lineValue coordinateIndex
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= " " <> justifyNumber 2 coordinateIndex <> lineValue
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foldFlag :: (Text.Builder.Builder, Int) -> OutlineFlag -> (Text.Builder.Builder, Int)
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@ -524,6 +524,8 @@ componentGlyphPartDescriptionP accumulator = do
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-- MORE_COMPONENTS.
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if testBit flags' 5 then componentGlyphPartDescriptionP updated else pure updated
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-- | Arguments are: WE_HAVE_A_SCALE, WE_HAVE_AN_X_AND_Y_SCALE and
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-- WE_HAVE_A_TWO_BY_TWO.
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transformationOptionP :: Bool -> Bool -> Bool -> Parser GlyphTransformationOption
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transformationOptionP True _ _ = GlyphScale <$> f2Dot14P <?> "scale"
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transformationOptionP _ True _ = GlyphXyScale
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@ -538,6 +540,7 @@ transformationOptionP _ _ True = Glyph2By2Scale
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<?> "2 by 2 transformation"
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transformationOptionP _ _ _ = pure GlyphNoScale
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-- | Arguments are: ARG_1_AND_2_ARE_WORDS and ARGS_ARE_XY_VALUES.
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glyphArgumentP :: Bool -> Bool -> Parser GlyphArgument
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glyphArgumentP True True = GlyphInt16Argument
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<$> Megaparsec.Binary.int16be
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@ -8,10 +8,12 @@ module Graphics.Fountainhead.Type
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, Fixed32(..)
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, FWord
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, UFWord
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, fixed2Double
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, succIntegral
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, ttfEpoch
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) where
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import Data.Bits ((.>>.), (.&.))
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import Data.Int (Int16)
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import Data.Word (Word16, Word32)
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import Data.Time (Day(..))
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@ -31,3 +33,9 @@ ttfEpoch = fromOrdinalDate 1904 1
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succIntegral :: Integral a => a -> Int
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succIntegral = succ . fromIntegral
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fixed2Double :: F2Dot14 -> Double
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fixed2Double (F2Dot14 fixed) =
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let mantissa = realToFrac (fixed .>>. 14)
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fraction = realToFrac (fixed .&. 0x3fff) / 16384.0
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in mantissa + fraction
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