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authorjao <jao@gnu.org>2014-09-04 20:38:53 +0200
committerjao <jao@gnu.org>2014-09-04 20:38:53 +0200
commit8d658f93df22d69ea4170234b15fd03cdd3f7f4f (patch)
tree478344a55fc84b95475ec47d33caeada7bdf28f9 /src
parentce60a9fcca7c05fee01758bd49b2f9e410693769 (diff)
parent8512afbb2c3be1897101da0b23edb258715475e6 (diff)
downloadxmobar-8d658f93df22d69ea4170234b15fd03cdd3f7f4f.tar.gz
xmobar-8d658f93df22d69ea4170234b15fd03cdd3f7f4f.tar.bz2
Merge branch 'xpm' of https://github.com/projedi/xmobar
Diffstat (limited to 'src')
-rw-r--r--src/Bitmap.hs58
-rw-r--r--src/XPMFile.hsc56
2 files changed, 108 insertions, 6 deletions
diff --git a/src/Bitmap.hs b/src/Bitmap.hs
index 3673b7a..ff79262 100644
--- a/src/Bitmap.hs
+++ b/src/Bitmap.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP, FlexibleContexts #-}
-----------------------------------------------------------------------------
-- |
-- Module : Bitmap
@@ -15,7 +16,10 @@ module Bitmap
, drawBitmap
, Bitmap(..)) where
+import Control.Applicative((<|>))
import Control.Monad
+import Control.Monad.Except(MonadError(..), runExceptT)
+import Control.Monad.Trans(MonadIO(..))
import Data.Map hiding (foldr, map, filter)
import Graphics.X11.Xlib
import System.Directory (doesFileExist)
@@ -24,9 +28,17 @@ import ColorCache
import Parsers (Widget(..))
import Actions (Action)
+#ifdef XPM
+import XPMFile(readXPMFile)
+#endif
+
+data BitmapType = Mono Pixel | Poly
+
data Bitmap = Bitmap { width :: Dimension
, height :: Dimension
, pixmap :: Pixmap
+ , shapePixmap :: Maybe Pixmap
+ , bitmapType :: BitmapType
}
updateCache :: Display -> Window -> Map FilePath Bitmap ->
@@ -41,21 +53,48 @@ updateCache dpy win cache ps = do
return $ maybe m (\b -> insert path b m) bitmap
foldM go cache paths
+readBitmapFile'
+ :: (MonadError String m, MonadIO m)
+ => Display
+ -> Drawable
+ -> String
+ -> m (Dimension, Dimension, Pixmap)
+readBitmapFile' d w p = do
+ res <- liftIO $ readBitmapFile d w p
+ case res of
+ Left err -> throwError err
+ Right (bw, bh, bp, _, _) -> return (bw, bh, bp)
+
loadBitmap :: Display -> Drawable -> FilePath -> IO (Maybe Bitmap)
loadBitmap d w p = do
exist <- doesFileExist p
if exist
then do
- bmap <- readBitmapFile d w p
- case bmap of
- Right (bw, bh, bp, _, _) -> do
- addFinalizer bp (freePixmap d bp)
- return $ Just $ Bitmap bw bh bp
+ res <- runExceptT $
+ tryXBM
+#ifdef XPM
+ <|> tryXPM
+#endif
+ case res of
+ Right b -> return $ Just b
Left err -> do
putStrLn err
return Nothing
else
return Nothing
+ where tryXBM = do
+ (bw, bh, bp) <- readBitmapFile' d w p
+ liftIO $ addFinalizer bp (freePixmap d bp)
+ return $ Bitmap bw bh bp Nothing (Mono 1)
+#ifdef XPM
+ tryXPM = do
+ (bw, bh, bp, mbpm) <- readXPMFile d w p
+ liftIO $ addFinalizer bp (freePixmap d bp)
+ case mbpm of
+ Nothing -> return ()
+ Just bpm -> liftIO $ addFinalizer bpm (freePixmap d bpm)
+ return $ Bitmap bw bh bp mbpm Poly
+#endif
drawBitmap :: Display -> Drawable -> GC -> String -> String
-> Position -> Position -> Bitmap -> IO ()
@@ -63,6 +102,13 @@ drawBitmap d p gc fc bc x y i =
withColors d [fc, bc] $ \[fc', bc'] -> do
let w = width i
h = height i
+ y' = 1 + y - fromIntegral h `div` 2
setForeground d gc fc'
setBackground d gc bc'
- copyPlane d (pixmap i) p gc 0 0 w h x (1 + y - fromIntegral h `div` 2) 1
+ case (shapePixmap i) of
+ Nothing -> return ()
+ Just mask -> setClipOrigin d gc x y' >> setClipMask d gc mask
+ case bitmapType i of
+ Poly -> copyArea d (pixmap i) p gc 0 0 w h x y'
+ Mono pl -> copyPlane d (pixmap i) p gc 0 0 w h x y' pl
+ setClipMask d gc 0
diff --git a/src/XPMFile.hsc b/src/XPMFile.hsc
new file mode 100644
index 0000000..18c7dec
--- /dev/null
+++ b/src/XPMFile.hsc
@@ -0,0 +1,56 @@
+{-# LANGUAGE FlexibleContexts, ForeignFunctionInterface #-}
+-----------------------------------------------------------------------------
+-- |
+-- Module : XPMFile
+-- Copyright : (C) 2014 Alexander Shabalin
+-- License : BSD3
+--
+-- Maintainer : jao@gnu.org
+-- Stability : unstable
+-- Portability : unportable
+--
+-----------------------------------------------------------------------------
+
+module XPMFile(readXPMFile) where
+
+import Control.Monad.Except(MonadError(..))
+import Control.Monad.Trans(MonadIO(..))
+import Graphics.X11.Xlib(Dimension, Display(..), Drawable, Pixmap)
+import Foreign.C.String(CString, withCString)
+import Foreign.C.Types(CInt(..), CLong)
+import Foreign.Ptr(Ptr)
+import Foreign.Marshal.Alloc(alloca, allocaBytes)
+import Foreign.Storable(peek, peekByteOff, pokeByteOff)
+
+#include <X11/xpm.h>
+
+foreign import ccall "XpmReadFileToPixmap"
+ xpmReadFileToPixmap :: Display -> Drawable -> CString -> Ptr Pixmap -> Ptr Pixmap -> Ptr () -> IO CInt
+
+readXPMFile
+ :: (MonadError String m, MonadIO m)
+ => Display
+ -> Drawable
+ -> String
+ -> m (Dimension, Dimension, Pixmap, Maybe Pixmap)
+readXPMFile display d filename =
+ toError $ withCString filename $ \c_filename ->
+ alloca $ \pixmap_return ->
+ alloca $ \shapemask_return ->
+ allocaBytes (#size XpmAttributes) $ \attributes -> do
+ (#poke XpmAttributes, valuemask) attributes ((#const XpmReturnAllocPixels) :: CLong)
+ res <- xpmReadFileToPixmap display d c_filename pixmap_return shapemask_return attributes
+ case res of
+ 0 -> do
+ width <- (#peek XpmAttributes, width) attributes
+ height <- (#peek XpmAttributes, height) attributes
+ pixmap <- peek pixmap_return
+ shapemask <- peek shapemask_return
+ return $ Right (width, height, pixmap, if shapemask == 0 then Nothing else Just shapemask)
+ 1 -> return $ Left "readXPMFile: XpmColorError"
+ -1 -> return $ Left "readXPMFile: XpmOpenFailed"
+ -2 -> return $ Left "readXPMFile: XpmFileInvalid"
+ -3 -> return $ Left "readXPMFile: XpmNoMemory"
+ -4 -> return $ Left "readXPMFile: XpmColorFailed"
+ _ -> return $ Left "readXPMFile: Unknown error"
+ where toError m = either throwError return =<< liftIO m