hsfm/src/GUI/Gtk/Icons.hs
Julian Ospald 3ba647d172
LIB/GTK: rewrite to use more atomic operations/data structures
This is a little bit less fancy, but avoids lazy IO. It depends a
little bit more on FilePath, but that also allows for a more general
interface.
2015-12-20 00:30:52 +01:00

33 lines
873 B
Haskell

{-# OPTIONS_HADDOCK ignore-exports #-}
-- |Module for Gtk icon handling.
module GUI.Gtk.Icons where
import Graphics.UI.Gtk
import Graphics.UI.Gtk.Gdk.Pixbuf
-- |Icon type we use in our GUI.
data GtkIcon = IFolder
| IFile
| IError
-- |Gets an icon from the default icon theme and falls back to project-icons
-- if not found. The requested icon size is not guaranteed.
getIcon :: GtkIcon -- ^ icon we want
-> Int -- ^ requested icon size
-> IO Pixbuf
getIcon icon isize = do
let iname = iconToStr icon
iT <- iconThemeGetDefault
mpix <- iconThemeLoadIcon iT iname isize IconLookupUseBuiltin
case mpix of
Just pix -> return pix
Nothing -> pixbufNewFromFile ("data/Gtk/icons/" ++ iname)
where
iconToStr IFolder = "gtk-directory"
iconToStr IFile = "gtk-file"
iconToStr IError = "error"