Hierarchify

darcs-hash:20071101201059-a5988-fc1f1262bec1b69e13ba18ae7cefeafc8c4471d4.gz

1 files changed, 67 insertions, 0 deletions

diff --git a/XMonad/Actions/FlexibleResize.hs b/XMonad/Actions/FlexibleResize.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module      :  XMonad.Actions.FlexibleResize
+-- Copyright   :  (c) Lukas Mai
+-- License     :  BSD3-style (see LICENSE)
+-- 
+-- Maintainer  :  <l.mai@web.de>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- Lets you resize floating windows from any corner.
+--
+-----------------------------------------------------------------------------
+
+module XMonad.Actions.FlexibleResize (
+	-- * Usage
+	-- $usage
+	XMonad.Actions.FlexibleResize.mouseResizeWindow
+) where
+
+import XMonad
+import XMonad.Operations
+import Graphics.X11.Xlib
+import Graphics.X11.Xlib.Extras
+import Foreign.C.Types
+
+-- $usage
+-- Put something like this in your Config.hs file:
+--
+-- > import qualified XMonad.Actions.FlexibleResize as Flex
+-- > mouseBindings = M.fromList
+-- >     [ ...
+-- >     , ((modMask, button3), (\w -> focus w >> Flex.mouseResizeWindow w)) ]
+
+-- %import qualified XMonad.Actions.FlexibleResize as Flex
+-- %mousebind , ((modMask, button3), (\\w -> focus w >> Flex.mouseResizeWindow w))
+
+mouseResizeWindow :: Window -> X ()
+mouseResizeWindow w = whenX (isClient w) $ withDisplay $ \d -> do
+    io $ raiseWindow d w
+    wa <- io $ getWindowAttributes d w
+    sh <- io $ getWMNormalHints d w
+    (_, _, _, _, _, ix, iy, _) <- io $ queryPointer d w
+    let
+        [pos_x, pos_y, width, height] = map (fromIntegral . ($ wa)) [wa_x, wa_y, wa_width, wa_height]
+        west  = firstHalf ix width
+        north = firstHalf iy height
+        (cx, fx, gx) = mkSel west  width  pos_x
+        (cy, fy, gy) = mkSel north height pos_y
+    io $ warpPointer d none w 0 0 0 0 cx cy
+    mouseDrag (\ex ey -> do
+                 wa' <- io $ getWindowAttributes d w
+                 let [px, py] = map (fromIntegral . ($ wa')) [wa_x, wa_y]
+                 io $ moveResizeWindow d w (fx px (fromIntegral ex))
+                                           (fy py (fromIntegral ey))
+                            `uncurry` applySizeHints sh (gx $ fromIntegral ex, gy $ fromIntegral ey))
+              (float w)
+    where
+    firstHalf :: CInt -> Position -> Bool
+    firstHalf a b = fromIntegral a * 2 <= b
+    cfst = curry fst
+    csnd = curry snd
+    mkSel :: Bool -> Position -> Position -> (Position, a -> a -> a, CInt -> Position)
+    mkSel b k p =
+        if b
+            then (0, csnd, ((k + p) -) . fromIntegral)
+            else (k, cfst, subtract p  . fromIntegral)