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DragPane must handle ExposeEvent too

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This commit is contained in:
Andrea Rossato
2007-10-08 07:47:02 +00:00
parent a82a44282f
commit c415ab00b7
1 changed files with 17 additions and 8 deletions
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25
DragPane.hs
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@@ -58,7 +58,7 @@ dragPane :: DragType -> Double -> Double -> DragPane a
dragPane t x y = DragPane (I Nothing) t x y
data DragPane a =
DragPane (Invisible Maybe (Window,Rectangle,Int)) DragType Double Double
DragPane (Invisible Maybe (Window,Rectangle,Rectangle,Int)) DragType Double Double
deriving ( Show, Read )
data DragType = Horizontal | Vertical deriving ( Show, Read )
@@ -72,7 +72,7 @@ data SetFrac = SetFrac Int Double deriving ( Show, Read, Eq, Typeable )
instance Message SetFrac
handleMess :: DragPane Window -> SomeMessage -> X (Maybe (DragPane Window))
handleMess d@(DragPane mb@(I (Just (win,_,ident))) ty delta split) x
handleMess d@(DragPane mb@(I (Just (win,_,_,ident))) ty delta split) x
| Just e <- fromMessage x :: Maybe Event = do handleEvent d e
return Nothing
| Just Hide <- fromMessage x = do hideWindow win
@@ -87,7 +87,7 @@ handleMess d@(DragPane mb@(I (Just (win,_,ident))) ty delta split) x
handleMess _ _ = return Nothing
handleEvent :: DragPane Window -> Event -> X ()
handleEvent (DragPane (I (Just (win,r,ident))) ty _ _)
handleEvent (DragPane (I (Just (win,_,r,ident))) ty _ _)
(ButtonEvent {ev_window = thisw, ev_subwindow = thisbw, ev_event_type = t })
| t == buttonPress && thisw == win || thisbw == win = do
mouseDrag (\ex ey -> do
@@ -96,7 +96,12 @@ handleEvent (DragPane (I (Just (win,r,ident))) ty _ _)
Horizontal -> (fromIntegral ey - (fromIntegral $ rect_y r))/(fromIntegral $ rect_height r)
sendMessage (SetFrac ident frac))
(return ())
handleEvent _ _ = return ()
handleEvent (DragPane (I (Just (win,oret,_,_))) _ _ _)
(ExposeEvent {ev_window = thisw })
| thisw == win = do
updateDragWin win oret
return ()
handleEvent _ _ = return ()
doLay :: (Rectangle -> Rectangle) -> DragPane Window -> Rectangle -> W.Stack a -> X ([(a, Rectangle)], Maybe (DragPane a))
doLay mirror (DragPane mw ty delta split) r s = do
@@ -117,13 +122,13 @@ doLay mirror (DragPane mw ty delta split) r s = do
[] -> [(W.focus s, r)]
if length wrs > 1
then case mw of
I (Just (w,_,ident)) -> do
I (Just (w,_,_,ident)) -> do
w' <- deleteWindow w >> newDragWin handr
return (wrs, Just $ DragPane (I $ Just (w',r',ident)) ty delta split)
return (wrs, Just $ DragPane (I $ Just (w',r,r',ident)) ty delta split)
I Nothing -> do
w <- newDragWin handr
i <- io $ newUnique
return (wrs, Just $ DragPane (I $ Just (w,r',hashUnique i)) ty delta split)
return (wrs, Just $ DragPane (I $ Just (w,r,r',hashUnique i)) ty delta split)
else return (wrs, Nothing)
@@ -131,6 +136,10 @@ newDragWin :: Rectangle -> X Window
newDragWin r@(Rectangle _ _ wh ht) = do
let mask = Just $ exposureMask .|. buttonPressMask
w <- createNewWindow r mask
paintWindow w wh ht 0 handleColor handleColor
showWindow w
paintWindow w wh ht 0 handleColor handleColor
return w
updateDragWin :: Window -> Rectangle -> X ()
updateDragWin w (Rectangle _ _ wh ht) = do
paintWindow w wh ht 0 handleColor handleColor