Safe Haskell	Safe
Language	Haskell2010

NanoVG.Internal.Text

Synopsis

Documentation

data Align Source #

Constructors

AlignLeft
AlignCenter
AlignRight
AlignTop
AlignMiddle
AlignBottom
AlignBaseline

Instances

Enum Align Source #
Methods succ :: Align -> Align # pred :: Align -> Align # toEnum :: Int -> Align # fromEnum :: Align -> Int # enumFrom :: Align -> [Align] # enumFromThen :: Align -> Align -> [Align] # enumFromTo :: Align -> Align -> [Align] # enumFromThenTo :: Align -> Align -> Align -> [Align] #
Eq Align Source #
Methods (==) :: Align -> Align -> Bool # (/=) :: Align -> Align -> Bool #
Ord Align Source #
Methods compare :: Align -> Align -> Ordering # (<) :: Align -> Align -> Bool # (<=) :: Align -> Align -> Bool # (>) :: Align -> Align -> Bool # (>=) :: Align -> Align -> Bool # max :: Align -> Align -> Align # min :: Align -> Align -> Align #
Read Align Source #
Methods readsPrec :: Int -> ReadS Align # readList :: ReadS [Align] # readPrec :: ReadPrec Align # readListPrec :: ReadPrec [Align] #
Show Align Source #
Methods showsPrec :: Int -> Align -> ShowS # show :: Align -> String # showList :: [Align] -> ShowS #

newtype Font Source #

Newtype to avoid accidental use of ints

Constructors

Font
Fields fontHandle :: CInt

Instances

Eq Font Source #
Methods (==) :: Font -> Font -> Bool # (/=) :: Font -> Font -> Bool #
Ord Font Source #
Methods compare :: Font -> Font -> Ordering # (<) :: Font -> Font -> Bool # (<=) :: Font -> Font -> Bool # (>) :: Font -> Font -> Bool # (>=) :: Font -> Font -> Bool # max :: Font -> Font -> Font # min :: Font -> Font -> Font #
Read Font Source #
Methods readsPrec :: Int -> ReadS Font # readList :: ReadS [Font] # readPrec :: ReadPrec Font # readListPrec :: ReadPrec [Font] #
Show Font Source #
Methods showsPrec :: Int -> Font -> ShowS # show :: Font -> String # showList :: [Font] -> ShowS #

data TextRow Source #

Constructors

TextRow

Fields

start :: !(Ptr CChar)
Pointer to the input text where the row starts.
end :: !(Ptr CChar)
Pointer to the input text where the row ends (one past the last character).
next :: !(Ptr CChar)
Pointer to the beginning of the next row.
width :: !CFloat
Logical width of the row.
textRowMinX :: !CFloat
Actual bounds of the row. Logical with and bounds can differ because of kerning and some parts over extending.
textRowMaxX :: !CFloat

Instances

Eq TextRow Source #
Methods (==) :: TextRow -> TextRow -> Bool # (/=) :: TextRow -> TextRow -> Bool #
Ord TextRow Source #
Methods compare :: TextRow -> TextRow -> Ordering # (<) :: TextRow -> TextRow -> Bool # (<=) :: TextRow -> TextRow -> Bool # (>) :: TextRow -> TextRow -> Bool # (>=) :: TextRow -> TextRow -> Bool # max :: TextRow -> TextRow -> TextRow # min :: TextRow -> TextRow -> TextRow #
Show TextRow Source #
Methods showsPrec :: Int -> TextRow -> ShowS # show :: TextRow -> String # showList :: [TextRow] -> ShowS #
Storable TextRow Source #
Methods sizeOf :: TextRow -> Int # alignment :: TextRow -> Int # peekElemOff :: Ptr TextRow -> Int -> IO TextRow # pokeElemOff :: Ptr TextRow -> Int -> TextRow -> IO () # peekByteOff :: Ptr b -> Int -> IO TextRow # pokeByteOff :: Ptr b -> Int -> TextRow -> IO () # peek :: Ptr TextRow -> IO TextRow # poke :: Ptr TextRow -> TextRow -> IO () #

type TextRowPtr = Ptr TextRow Source #

data GlyphPosition Source #

Constructors

GlyphPosition
Fields str :: !(Ptr CChar) Pointer of the glyph in the input string. glyphX :: !CFloat The x-coordinate of the logical glyph position. glyphPosMinX :: !CFloat The left bound of the glyph shape. glyphPosMaxX :: !CFloat The right bound of the glyph shape.

Instances

Eq GlyphPosition Source #
Methods (==) :: GlyphPosition -> GlyphPosition -> Bool # (/=) :: GlyphPosition -> GlyphPosition -> Bool #
Ord GlyphPosition Source #
Methods compare :: GlyphPosition -> GlyphPosition -> Ordering # (<) :: GlyphPosition -> GlyphPosition -> Bool # (<=) :: GlyphPosition -> GlyphPosition -> Bool # (>) :: GlyphPosition -> GlyphPosition -> Bool # (>=) :: GlyphPosition -> GlyphPosition -> Bool # max :: GlyphPosition -> GlyphPosition -> GlyphPosition # min :: GlyphPosition -> GlyphPosition -> GlyphPosition #
Show GlyphPosition Source #
Methods showsPrec :: Int -> GlyphPosition -> ShowS # show :: GlyphPosition -> String # showList :: [GlyphPosition] -> ShowS #
Storable GlyphPosition Source #
Methods sizeOf :: GlyphPosition -> Int # alignment :: GlyphPosition -> Int # peekElemOff :: Ptr GlyphPosition -> Int -> IO GlyphPosition # pokeElemOff :: Ptr GlyphPosition -> Int -> GlyphPosition -> IO () # peekByteOff :: Ptr b -> Int -> IO GlyphPosition # pokeByteOff :: Ptr b -> Int -> GlyphPosition -> IO () # peek :: Ptr GlyphPosition -> IO GlyphPosition # poke :: Ptr GlyphPosition -> GlyphPosition -> IO () #

type GlyphPositionPtr = Ptr GlyphPosition Source #

safeFont :: CInt -> Maybe Font Source #

createFont :: Context -> Text -> FileName -> IO (Maybe Font) Source #

Creates font by loading it from the disk from specified file name. Returns handle to the font.

createFontMem :: Context -> Text -> ByteString -> IO (Maybe Font) Source #

Creates image by loading it from the specified memory chunk. Returns handle to the font.

findFont :: Context -> Text -> IO (Maybe Font) Source #

Finds a loaded font of specified name, and returns handle to it, or -1 if the font is not found.

fontSize :: Context -> CFloat -> IO () Source #

Sets the font size of current text style.

fontBlur :: Context -> CFloat -> IO () Source #

Sets the blur of current text style.

textLetterSpacing :: Context -> CFloat -> IO () Source #

Sets the letter spacing of current text style.

textLineHeight :: Context -> CFloat -> IO () Source #

Sets the proportional line height of current text style. The line height is specified as multiple of font size.

textAlign :: Context -> Set Align -> IO () Source #

Sets the text align of current text style, see NVGalign for options.

fontFaceId :: Context -> Font -> IO () Source #

Sets the font face based on specified id of current text style.

fontFace :: Context -> Text -> IO () Source #

Sets the font face based on specified name of current text styl

text :: Context -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> IO () Source #

Draws text string at specified location. If end is specified only the sub-string up to the end is drawn.

textBox :: Context -> CFloat -> CFloat -> CFloat -> Text -> IO () Source #

Draws multi-line text string at specified location wrapped at the specified width. If end is specified only the sub-string up to the end is drawn. | White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered. | Words longer than the max width are slit at nearest character (i.e. no hyphenation).

newtype Bounds Source #

Constructors

Bounds (V4 CFloat)

Instances

Eq Bounds Source #
Methods (==) :: Bounds -> Bounds -> Bool # (/=) :: Bounds -> Bounds -> Bool #
Ord Bounds Source #
Methods compare :: Bounds -> Bounds -> Ordering # (<) :: Bounds -> Bounds -> Bool # (<=) :: Bounds -> Bounds -> Bool # (>) :: Bounds -> Bounds -> Bool # (>=) :: Bounds -> Bounds -> Bool # max :: Bounds -> Bounds -> Bounds # min :: Bounds -> Bounds -> Bounds #
Read Bounds Source #
Methods readsPrec :: Int -> ReadS Bounds # readList :: ReadS [Bounds] # readPrec :: ReadPrec Bounds # readListPrec :: ReadPrec [Bounds] #
Show Bounds Source #
Methods showsPrec :: Int -> Bounds -> ShowS # show :: Bounds -> String # showList :: [Bounds] -> ShowS #
Storable Bounds Source #
Methods sizeOf :: Bounds -> Int # alignment :: Bounds -> Int # peekElemOff :: Ptr Bounds -> Int -> IO Bounds # pokeElemOff :: Ptr Bounds -> Int -> Bounds -> IO () # peekByteOff :: Ptr b -> Int -> IO Bounds # pokeByteOff :: Ptr b -> Int -> Bounds -> IO () # peek :: Ptr Bounds -> IO Bounds # poke :: Ptr Bounds -> Bounds -> IO () #

peekBounds :: Ptr CFloat -> IO Bounds Source #

allocaBounds :: (Ptr CFloat -> IO b) -> IO b Source #

textBounds :: Context -> CFloat -> CFloat -> Text -> IO Bounds Source #

Measures the specified text string. Parameter bounds should be a pointer to float[4], if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax] Returns the horizontal advance of the measured text (i.e. where the next character should drawn). Measured values are returned in local coordinate space.

textBoxBounds :: Context -> CFloat -> CFloat -> CFloat -> Text -> IO Bounds Source #

Measures the specified multi-text string. Parameter bounds should be a pointer to float[4], if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax] Measured values are returned in local coordinate space.

textGlyphPositions :: Context -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> GlyphPositionPtr -> CInt -> IO CInt Source #

Calculates the glyph x positions of the specified text. If end is specified only the sub-string will be used. Measured values are returned in local coordinate space.

textMetrics :: Context -> IO (CFloat, CFloat, CFloat) Source #

Returns the vertical metrics based on the current text style. Measured values are returned in local coordinate space.

textBreakLines :: Context -> Ptr CChar -> Ptr CChar -> CFloat -> TextRowPtr -> CInt -> IO CInt Source #

Breaks the specified text into lines. If end is specified only the sub-string will be used. White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered. Words longer than the max width are slit at nearest character (i.e. no hyphenation).

createFont'_ :: Context -> Ptr CChar -> Ptr CChar -> IO CInt Source #

createFontMem'_ :: Context -> Ptr CChar -> Ptr CUChar -> CInt -> CInt -> IO CInt Source #

findFont'_ :: Context -> Ptr CChar -> IO CInt Source #

fontSize'_ :: Context -> CFloat -> IO () Source #

fontBlur'_ :: Context -> CFloat -> IO () Source #

textLetterSpacing'_ :: Context -> CFloat -> IO () Source #

textLineHeight'_ :: Context -> CFloat -> IO () Source #

textAlign'_ :: Context -> CInt -> IO () Source #

fontFaceId'_ :: Context -> CInt -> IO () Source #

fontFace'_ :: Context -> Ptr CChar -> IO () Source #

text'_ :: Context -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> IO CFloat Source #

textBox'_ :: Context -> CFloat -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> IO () Source #

textBounds'_ :: Context -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> Ptr CFloat -> IO CFloat Source #

textBoxBounds'_ :: Context -> CFloat -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> Ptr CFloat -> IO () Source #

textGlyphPositions'_ :: Context -> CFloat -> CFloat -> Ptr CChar -> Ptr CChar -> GlyphPositionPtr -> CInt -> IO CInt Source #

textMetrics'_ :: Context -> Ptr CFloat -> Ptr CFloat -> Ptr CFloat -> IO () Source #

textBreakLines'_ :: Context -> Ptr CChar -> Ptr CChar -> CFloat -> TextRowPtr -> CInt -> IO CInt Source #