Typograffiti.Store

A storage context an ops for rendering text with multiple fonts and sizes, hiding the details of the Atlas and WordCache.

Documentation

data RenderedText t m

A pre-rendered bit of text, ready to display given some post compilition transformations. Also contains the text size.

Constructors

RenderedText

Fields

• drawRenderedText :: t -> m ()
• sizeOfRenderedText :: V2 Int

data Font t

Constructors

Font

Fields

• fontAtlas :: Atlas
• fontWordCache :: WordCache t

data TextRenderingData t

Constructors

TextRenderingData

Fields

• textRenderingDataAllocWord :: Atlas -> String -> IO (Either TypograffitiError (AllocatedRendering t))

  The operation used to alloc a word. Generate geometry, use a shader program, set uniforms, etc.

• textRenderingDataFontMap :: Map (FilePath, GlyphSize) (Font t)

  The cached fonts.

• textRenderingDataCharSet :: Set Char

  The character set to have available in all allocated Atlas types.

newtype FontStore t

Stored fonts at specific sizes.

Constructors

FontStore

Fields

• unFontStore :: TMVar (TextRenderingData t)

getTextRendering

Arguments

:: (MonadIO m, MonadError TypograffitiError m, Layout t)

=> FontStore t

The font store.

-> FilePath

The path to the font to use for rendering.

-> GlyphSize

The size of the font glyphs.

-> String

The string to render.

-> m (RenderedText t m)

The rendered text, ready to draw to the screen.

newDefaultFontStore :: (MonadIO m, MonadError TypograffitiError m, Integral i) => IO (V2 i) -> m (FontStore [TextTransform])

allocFont :: (MonadIO m, MonadError TypograffitiError m, Layout t) => FontStore t -> FilePath -> GlyphSize -> m (Font t)