Maintainer | gtk2hs-users@lists.sourceforge.net |
---|---|
Stability | provisional |
Portability | portable (depends on GHC) |
Safe Haskell | None |
Language | Haskell98 |
Graphics.UI.Gtk.Cairo
Description
Gtk specific functions to for rendering with Cairo.
Cairo is a graphics library that supports vector graphics and image
compositing that can be used with Gdk.
The Cairo API is an addition to Gdk/Gtk (rather than a replacement).
Cairo rendering can be performed on any Drawable
by calling renderWithDrawable
. The functions in this module provide
ways of drawing Gtk specific elements, such as Pixbuf
s or text
laid out with Pango.
All functions in this module are only available in Gtk 2.8 or higher.
Synopsis
- cairoFontMapGetDefault :: IO FontMap
- cairoFontMapSetResolution :: FontMap -> Double -> IO ()
- cairoFontMapGetResolution :: FontMap -> IO Double
- cairoCreateContext :: Maybe FontMap -> IO PangoContext
- cairoContextSetResolution :: PangoContext -> Double -> IO ()
- cairoContextGetResolution :: PangoContext -> IO Double
- cairoContextSetFontOptions :: PangoContext -> FontOptions -> IO ()
- cairoContextGetFontOptions :: PangoContext -> IO FontOptions
- renderWithDrawable :: DrawableClass drawable => drawable -> Render a -> IO a
- region :: Region -> Render ()
- setSourceColor :: Color -> Render ()
- setSourcePixbuf :: Pixbuf -> Double -> Double -> Render ()
- rectangle :: Rectangle -> Render ()
- updateContext :: PangoContext -> Render ()
- createLayout :: GlibString string => string -> Render PangoLayout
- updateLayout :: PangoLayout -> Render ()
- showGlyphString :: GlyphItem -> Render ()
- showLayoutLine :: LayoutLine -> Render ()
- showLayout :: PangoLayout -> Render ()
- glyphStringPath :: GlyphItem -> Render ()
- layoutLinePath :: LayoutLine -> Render ()
- layoutPath :: PangoLayout -> Render ()
Global Cairo settings.
cairoFontMapGetDefault :: IO FontMap #
cairoFontMapSetResolution :: FontMap -> Double -> IO () #
cairoFontMapGetResolution :: FontMap -> IO Double #
cairoCreateContext :: Maybe FontMap -> IO PangoContext #
cairoContextSetResolution :: PangoContext -> Double -> IO () #
cairoContextGetResolution :: PangoContext -> IO Double #
cairoContextSetFontOptions :: PangoContext -> FontOptions -> IO () #
cairoContextGetFontOptions :: PangoContext -> IO FontOptions #
Functions for the Render
monad.
Arguments
:: DrawableClass drawable | |
=> drawable |
|
-> Render a | A newly created Cairo context. |
-> IO a |
Creates a Cairo context for drawing to a Drawable
.
Removed in Gtk3.
region :: Region -> Render () Source #
Adds the given region to the current path of the Render
context.
setSourceColor :: Color -> Render () #
Arguments
:: Pixbuf | |
-> Double | x |
-> Double | y |
-> Render () |
Sets the given pixbuf as the source pattern for the Cairo context. The
pattern has an extend mode of ExtendNone
and is aligned so that the
origin of pixbuf is (x, y)
.
rectangle :: Rectangle -> Render () Source #
Adds the given region to the current path of the Render
context.
updateContext :: PangoContext -> Render () #
createLayout :: GlibString string => string -> Render PangoLayout #
updateLayout :: PangoLayout -> Render () #
showGlyphString :: GlyphItem -> Render () #
showLayoutLine :: LayoutLine -> Render () #
showLayout :: PangoLayout -> Render () #
glyphStringPath :: GlyphItem -> Render () #
layoutLinePath :: LayoutLine -> Render () #
layoutPath :: PangoLayout -> Render () #