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-rw-r--r--XMonad/Layout/Spacing.hs20
1 files changed, 17 insertions, 3 deletions
diff --git a/XMonad/Layout/Spacing.hs b/XMonad/Layout/Spacing.hs
index 38ffbd5..c54ef50 100644
--- a/XMonad/Layout/Spacing.hs
+++ b/XMonad/Layout/Spacing.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}
+{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, DeriveDataTypeable #-}
-----------------------------------------------------------------------------
-- |
@@ -21,12 +21,12 @@ module XMonad.Layout.Spacing (
spacingWithEdge, SpacingWithEdge,
smartSpacing, SmartSpacing,
smartSpacingWithEdge, SmartSpacingWithEdge,
-
+ SpacingMsg(..)
) where
import Graphics.X11 (Rectangle(..))
import Control.Arrow (second)
-import XMonad.Core (runLayout)
+import XMonad.Core (runLayout,Message,fromMessage,Typeable)
import XMonad.StackSet (up, down, Workspace(..))
import XMonad.Util.Font (fi)
@@ -49,10 +49,19 @@ spacing p = ModifiedLayout (Spacing p)
data Spacing a = Spacing Int deriving (Show, Read)
+-- | Message to dynamically increase, decrease or set the size of the window spacing
+data SpacingMsg = SetSpacing Int | IncSpacing Int deriving (Show,Read,Eq,Typeable)
+instance Message SpacingMsg
+
instance LayoutModifier Spacing a where
pureModifier (Spacing p) _ _ wrs = (map (second $ shrinkRect p) wrs, Nothing)
+ pureMess (Spacing px) m
+ | Just (SetSpacing px') <- fromMessage m = Just $ Spacing (max 0 px')
+ | Just (IncSpacing n) <- fromMessage m = Just $ Spacing (max 0 (px+n))
+ | otherwise = Nothing
+
modifierDescription (Spacing p) = "Spacing " ++ show p
-- | Surround all windows by a certain number of pixels of blank space, and
@@ -66,6 +75,11 @@ instance LayoutModifier SpacingWithEdge a where
pureModifier (SpacingWithEdge p) _ _ wrs = (map (second $ shrinkRect p) wrs, Nothing)
+ pureMess (SpacingWithEdge px) m
+ | Just (SetSpacing px') <- fromMessage m = Just $ SpacingWithEdge (max 0 px')
+ | Just (IncSpacing n) <- fromMessage m = Just $ SpacingWithEdge (max 0 (px+n))
+ | otherwise = Nothing
+
modifyLayout (SpacingWithEdge p) w r = runLayout w (shrinkRect p r)
modifierDescription (SpacingWithEdge p) = "SpacingWithEdge " ++ show p