diff options
Diffstat (limited to 'Operations.hs')
| -rw-r--r-- | Operations.hs | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/Operations.hs b/Operations.hs index 952e5ac..8e31f2c 100644 --- a/Operations.hs +++ b/Operations.hs @@ -312,7 +312,7 @@ sendMessage a = layout $ \x@(l, ls) -> maybe x (flip (,) ls) (modifyLayout l (So -- -- fullscreen mode -- tall mode --- wide mode +-- wide mode (a mirror of tall mode) -- -- The latter algorithms support the following operations: -- @@ -326,13 +326,27 @@ instance Message Resize data IncMasterN = IncMasterN Int deriving Typeable instance Message IncMasterN +-- simple fullscreen mode, just render all windows fullscreen. full :: Layout full = Layout { doLayout = \sc ws -> return [ (w,sc) | w <- ws ] , modifyLayout = const Nothing } -- no changes -tall, wide :: Int -> Rational -> Rational -> Layout -wide nmaster delta frac = mirrorLayout (tall nmaster delta frac) +-- the true tiling mode of xmonad. +-- +-- the screen is divided (currently) into two panes. all clients are +-- then partioned between these two panes. one pane, the `master', by +-- convention has the least number of windows in it (by default, 1). +-- the variable `nmaster' controls how many windows are rendered in the +-- master pane. +-- +-- `delta' specifies the ratio of the screen to resize by. +-- +-- 'frac' specifies what proportion of the screen to devote to the +-- master area. +-- +-- +tall :: Int -> Rational -> Rational -> Layout tall nmaster delta frac = Layout { doLayout = \r -> return . ap zip (tile frac r nmaster . length) , modifyLayout = \m -> fmap resize (fromMessage m) `mplus` @@ -346,11 +360,11 @@ tall nmaster delta frac = mirrorRect :: Rectangle -> Rectangle mirrorRect (Rectangle rx ry rw rh) = (Rectangle ry rx rh rw) --- | Mirror a layout -mirrorLayout :: Layout -> Layout -mirrorLayout (Layout { doLayout = dl, modifyLayout = ml }) = +-- | Mirror a layout, compute its 90 degree rotated form. +mirror :: Layout -> Layout +mirror (Layout { doLayout = dl, modifyLayout = ml }) = Layout { doLayout = \sc w -> map (second mirrorRect) `fmap` dl (mirrorRect sc) w - , modifyLayout = fmap mirrorLayout . ml } + , modifyLayout = fmap mirror . ml } -- | tile. Compute the positions for windows in our default tiling modes -- Tiling algorithms in the core should satisify the constraint that @@ -363,6 +377,7 @@ tile f r nmaster n | n <= nmaster = splitVertically n r | otherwise = splitVertically nmaster r1 ++ splitVertically (n-nmaster) r2 where (r1,r2) = splitHorizontallyBy f r +-- divide a rectangle, computing a number of subrectangles. splitVertically, splitHorizontally :: Int -> Rectangle -> [Rectangle] splitVertically n r | n < 2 = [r] splitVertically n (Rectangle sx sy sw sh) = Rectangle sx sy sw smallh : |