From 2e89e3c781d2ae3d7c395f3d025585130fa87239 Mon Sep 17 00:00:00 2001
From: jao <jao@gnu.org>
Date: Mon, 2 Feb 2015 04:10:26 +0100
Subject: Real fix: Xrender only available if with_xft

---
 src/XUtil.hsc | 112 +---------------------------------------------------------
 1 file changed, 1 insertion(+), 111 deletions(-)

(limited to 'src/XUtil.hsc')

diff --git a/src/XUtil.hsc b/src/XUtil.hsc
index 8a174f1..54eb843 100644
--- a/src/XUtil.hsc
+++ b/src/XUtil.hsc
@@ -21,7 +21,6 @@ module XUtil
     , textExtents
     , textWidth
     , printString
-    , drawBackground
     , newWindow
     , nextEvent'
     , readFileSafe
@@ -38,11 +37,9 @@ import Foreign
 import Graphics.X11.Xlib hiding (textExtents, textWidth)
 import qualified Graphics.X11.Xlib as Xlib (textExtents, textWidth)
 import Graphics.X11.Xlib.Extras
-import Graphics.X11.Xrender
 import System.Mem.Weak ( addFinalizer )
 import System.Posix.Types (Fd(..))
 import System.IO
-import Foreign.C
 
 #if defined XFT || defined UTF8
 # if __GLASGOW_HASKELL__ < 612
@@ -54,6 +51,7 @@ import qualified System.IO as UTF8 (readFile,hGetLine)
 #if defined XFT
 import Data.List
 import MinXft
+import Graphics.X11.Xrender
 #endif
 
 import ColorCache
@@ -233,111 +231,3 @@ setupLocale = withCString "" (setlocale $ #const LC_ALL) >> return ()
 setupLocale :: IO ()
 setupLocale = return ()
 #endif
-
---  More XRender nonsense
-#include <X11/extensions/Xrender.h>
-
-type Picture = XID
-type PictOp = CInt
-
-data XRenderPictFormat
-data XRenderPictureAttributes = XRenderPictureAttributes
-
--- foreign import ccall unsafe "X11/extensions/Xrender.h XRenderFillRectangle"
-  -- xRenderFillRectangle :: Display -> PictOp -> Picture -> Ptr XRenderColor -> CInt -> CInt -> CUInt -> CUInt -> IO ()
-foreign import ccall unsafe "X11/extensions/Xrender.h XRenderComposite"
-  xRenderComposite :: Display -> PictOp -> Picture -> Picture -> Picture -> CInt -> CInt -> CInt -> CInt -> CInt -> CInt -> CUInt -> CUInt -> IO ()
-foreign import ccall unsafe "X11/extensions/Xrender.h XRenderCreateSolidFill"
-  xRenderCreateSolidFill :: Display -> Ptr XRenderColor -> IO Picture
-foreign import ccall unsafe "X11/extensions/Xrender.h XRenderFreePicture"
-  xRenderFreePicture :: Display -> Picture -> IO ()
-foreign import ccall unsafe "string.h" memset :: Ptr a -> CInt -> CSize -> IO ()
-foreign import ccall unsafe "X11/extensions/Xrender.h XRenderFindStandardFormat"
-  xRenderFindStandardFormat :: Display -> CInt -> IO (Ptr XRenderPictFormat)
-foreign import ccall unsafe "X11/extensions/Xrender.h XRenderCreatePicture"
-  xRenderCreatePicture :: Display -> Drawable -> Ptr XRenderPictFormat -> CULong -> Ptr XRenderPictureAttributes -> IO Picture
-
-
--- Attributes not supported
-instance Storable XRenderPictureAttributes where
-    sizeOf _ = #{size XRenderPictureAttributes}
-    alignment _ = alignment (undefined :: CInt)
-    peek _ = return XRenderPictureAttributes
-    poke p XRenderPictureAttributes = do
-        memset p 0 #{size XRenderPictureAttributes}
-
--- | Convenience function, gives us an XRender handle to a traditional
--- Pixmap.  Don't let it escape.
-withRenderPicture :: Display -> Drawable -> (Picture -> IO a) -> IO ()
-withRenderPicture d p f = do
-    format <- xRenderFindStandardFormat d 1 -- PictStandardRGB24
-    alloca $ \attr -> do
-        pic <- xRenderCreatePicture d p format 0 attr
-        f pic
-        xRenderFreePicture d pic
-
--- | Convenience function, gives us an XRender picture that is a solid
--- fill of color 'c'.  Don't let it escape.
-withRenderFill :: Display -> XRenderColor -> (Picture -> IO a) -> IO ()
-withRenderFill d c f = do
-    pic <- with c (xRenderCreateSolidFill d)
-    f pic
-    xRenderFreePicture d pic
-
--- | Drawing the background to a pixmap and tacking into account
--- transparency
-drawBackground ::  Display -> Drawable -> String -> Int -> Rectangle -> IO ()
-drawBackground d p bgc alpha (Rectangle x y wid ht) = do
-  let render opt bg pic m =
-        xRenderComposite d opt bg m pic
-                        (fromIntegral x) (fromIntegral y) 0 0
-                        0 0 (fromIntegral wid) (fromIntegral ht)
-  withRenderPicture d p $ \pic -> do
-    -- Handle background color
-    bgcolor <- parseRenderColor d bgc
-    withRenderFill d bgcolor $ \bgfill ->
-      withRenderFill d
-                     (XRenderColor 0 0 0 (257 * alpha))
-                     (render pictOpSrc bgfill pic)
-    -- Handle transparency
-    internAtom d "_XROOTPMAP_ID" False >>= \xid ->
-      let xroot = defaultRootWindow d in
-      alloca $ \x1 ->
-      alloca $ \x2 ->
-      alloca $ \x3 ->
-      alloca $ \x4 ->
-      alloca $ \pprop -> do
-        xGetWindowProperty d xroot xid 0 1 False 20 x1 x2 x3 x4 pprop
-        prop <- peek pprop
-        when (prop /= nullPtr) $ do
-          rootbg <- peek (castPtr prop) :: IO Pixmap
-          xFree prop
-          withRenderPicture d rootbg $ \bgpic ->
-            withRenderFill d (XRenderColor 0 0 0 (0xFFFF - 257 * alpha))
-                           (render pictOpAdd bgpic pic)
-
--- | Parses color into XRender color (allocation not necessary!)
-parseRenderColor :: Display -> String -> IO XRenderColor
-parseRenderColor d c = do
-    let colormap = defaultColormap d (defaultScreen d)
-    Color _ red green blue _ <- parseColor d colormap c
-    return $ XRenderColor (fromIntegral red) (fromIntegral green) (fromIntegral blue) 0xFFFF
-
-pictOpSrc, pictOpAdd :: PictOp
-pictOpSrc = 1
-pictOpAdd = 12
-
--- pictOpMinimum = 0
--- pictOpClear = 0
--- pictOpDst = 2
--- pictOpOver = 3
--- pictOpOverReverse = 4
--- pictOpIn = 5
--- pictOpInReverse = 6
--- pictOpOut = 7
--- pictOpOutReverse = 8
--- pictOpAtop = 9
--- pictOpAtopReverse = 10
--- pictOpXor = 11
--- pictOpSaturate = 13
--- pictOpMaximum = 13
-- 
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