using (and corrected) refined button handler invocation
TODO: "old" camera handler interferes with left mouse clicks/drags
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tpajenka
parent
c17852d8e1
commit
271497be81
@ -103,28 +103,34 @@ eventCallback e = do
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SDL.MouseMotion _ _ _ (SDL.Position x y) _ _ -> -- windowID mouseID motionState motionPosition xrel yrel
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do
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state <- get
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when (state ^. mouse.isDown && not (state ^. mouse.isDragging)) $
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if state ^. mouse.isDown && not (state ^. mouse.isDragging)
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then
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modify $ (mouse.isDragging .~ True)
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. (mouse.dragStartX .~ fromIntegral x)
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. (mouse.dragStartY .~ fromIntegral y)
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. (mouse.dragStartXAngle .~ (state ^. camera.xAngle))
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. (mouse.dragStartYAngle .~ (state ^. camera.yAngle))
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else mouseMoveHandler (x, y)
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modify $ (mouse.mousePosition. Types._x .~ fromIntegral x)
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. (mouse.mousePosition. Types._y .~ fromIntegral y)
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SDL.MouseButton _ _ button state (SDL.Position x y) -> -- windowID mouseID button buttonState buttonAt
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do
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case button of
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SDL.LeftButton -> do
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let pressed = state == SDL.Pressed
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modify $ mouse.isDown .~ pressed
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unless pressed $ do
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if pressed
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then mouseReleaseHandler LeftButton (x, y)
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else do
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st <- get
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if st ^. mouse.isDragging then
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modify $ mouse.isDragging .~ False
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else
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clickHandler LeftButton (x, y)
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_ -> when (state == SDL.Released)
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$ maybe (return ()) (`clickHandler` (x, y)) $ transformButton button
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else do
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mousePressHandler LeftButton (x, y)
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_ -> case state of
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SDL.Pressed -> maybe (return ()) (`mousePressHandler` (x, y)) $ transformButton button
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SDL.Released -> maybe (return ()) (`mouseReleaseHandler` (x, y)) $ transformButton button
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_ -> return ()
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SDL.MouseWheel _ _ _ vscroll -> -- windowID mouseID hScroll vScroll
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do
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state <- get
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@ -138,17 +144,16 @@ eventCallback e = do
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mouseButtonHandler :: (EventHandler Pioneers -> MouseButton -> Pixel -> GUIWidget Pioneers -> Pioneers (GUIWidget Pioneers))
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-> MouseButton -> Pixel -> Pioneers ()
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mouseButtonHandler transFunc btn px = do
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modify $ ui.uiButtonState %~ (mousePressed %~ (+1)) -- TODO: what happens if released outside window? not reset properly?
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state <- get
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let hMap = state ^. ui.uiMap
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currentWidget = state ^. ui.uiButtonState.mouseCurrentWidget
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case currentWidget of
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Just (wui, px') -> do
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let target = toGUIAny hMap wui
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Just (wid, px') -> do
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let target = toGUIAny hMap wid
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target' <- case target ^. eventHandlers.(at MouseEvent) of
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Just ma -> transFunc ma btn (px -: px') target
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Nothing -> return target
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modify $ ui.uiMap %~ Map.insert wui target'
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modify $ ui.uiMap %~ Map.insert wid target'
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return ()
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Nothing -> return ()
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@ -162,85 +167,111 @@ mouseReleaseHandler btn px = do
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modify $ ui.uiButtonState %~ (mousePressed %~ flip (-) 1) -- TODO: what happens if pressed outside window? not set properly?
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mouseButtonHandler (\ma -> fromJust (ma ^? onMouseRelease)) btn px
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state <- get
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unless (state ^. ui.uiButtonState.mousePressed > 0) $ do
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case state ^. ui.uiButtonState.mouseCurrentWidget of
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Just (wui, px') -> do
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let target = toGUIAny (state ^. ui.uiMap) wui
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Just (wid, px') -> do
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let target = toGUIAny (state ^. ui.uiMap) wid
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-- debug
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let short = target ^. baseProperties.shorthand
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bound <- target ^. baseProperties.boundary
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prio <- target ^. baseProperties.priority
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liftIO $ putStrLn $ "releasing(" ++ show btn ++ ") " ++ short ++ ": " ++ show bound ++ " "
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++ show prio ++ " at [" ++ show (fst px) ++ "," ++ show (snd px) ++ "]"
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-- /debug
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target' <- case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target_ <- fromJust (ma ^? onMouseEnter) px' target -- TODO unsafe fromJust
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fromJust (ma ^? onMouseMove) px' target_ -- TODO unsafe fromJust
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Nothing -> return target
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modify $ ui.uiMap %~ Map.insert wui target'
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modify $ ui.uiMap %~ Map.insert wid target'
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Nothing -> return ()
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mouseSwitchMouseActive px -- TODO leave current
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mouseSetMouseActive px -- TODO leave current
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mouseSwitchMouseActive :: Pixel -> Pioneers ()
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mouseSwitchMouseActive px = do
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mouseSetMouseActiveTargeted :: (UIId, Pixel) -- ^ (target widget, local coorinates)
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-> Pixel -- ^ global coordinates
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-> Pioneers ()
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mouseSetMouseActiveTargeted (wid, px') px = do
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state <- get
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--liftIO $ putStrLn $ "new target: " ++ show wid
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let hMap = state ^. ui.uiMap
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target = toGUIAny hMap wid
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modify $ ui.uiButtonState %~ (mouseCurrentWidget .~ Just (wid, px -: px')) . (mouseInside .~ True)
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target' <- case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target_ <- fromJust (ma ^? onMouseEnter) px' target -- TODO unsafe fromJust
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fromJust (ma ^? onMouseMove) px' target_ -- TODO unsafe fromJust
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Nothing -> return target
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modify $ ui.uiMap %~ Map.insert wid target'
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mouseSetMouseActive :: Pixel -- ^global coordinates
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-> Pioneers ()
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mouseSetMouseActive px = do
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roots <- getRootIds
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hits <- liftM concat $ mapM (getInsideId hMap px) roots
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hits <- liftM concat $ mapM (getInsideId px) roots
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leading <- getLeadingWidget hits
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case leading of
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Just (wui, px') -> do
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let target = toGUIAny hMap wui
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modify $ ui.uiButtonState %~ (mouseCurrentWidget .~ Just (wui, px -: px')) . (mouseInside .~ True)
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target' <- case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target_ <- fromJust (ma ^? onMouseEnter) px' target -- TODO unsafe fromJust
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fromJust (ma ^? onMouseMove) px' target_ -- TODO unsafe fromJust
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Nothing -> return target
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modify $ ui.uiMap %~ Map.insert wui target'
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Just hit -> mouseSetMouseActiveTargeted hit px
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Nothing -> modify $ ui.uiButtonState %~ (mouseCurrentWidget .~ Nothing) . (mouseInside .~ False)
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mouseSetLeaving :: UIId -> Pixel -> Pioneers ()
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mouseSetLeaving wid px = do
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state <- get
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let target = toGUIAny (state ^. ui.uiMap) wid
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modify $ ui.uiButtonState.mouseInside .~ False
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case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target' <- fromJust (ma ^? onMouseLeave) px target --TODO unsafe fromJust
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modify $ ui.uiMap %~ Map.insert wid target'
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Nothing -> return ()
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mouseMoveHandler :: Pixel -> Pioneers ()
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mouseMoveHandler px = do
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state <- get
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--liftIO $ print $ state ^. ui.uiButtonState
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case state ^. ui.uiButtonState.mouseCurrentWidget of -- existing mouse-active widget?
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Just (uiw, px') -> do
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let target = toGUIAny (state ^. ui.uiMap) uiw
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isIn <- (target ^. baseProperties.isInside) target (px -: px')
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if isIn == state ^. ui.uiButtonState.mouseInside -- > moving inside or outside
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then case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just (wid, px') -> do
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let target = toGUIAny (state ^. ui.uiMap) wid
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inTest <- isHittingChild (px -: px') target
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case inTest of
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Left b -> -- no child hit
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if b == state ^. ui.uiButtonState.mouseInside then -- > moving inside or outside
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case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do target' <- fromJust (ma ^? onMouseMove) px' target
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modify $ ui.uiMap %~ Map.insert uiw target'
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modify $ ui.uiMap %~ Map.insert wid target'
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Nothing -> return ()
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else if isIn -- && not mouseInside --> entering
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then do modify $ ui.uiButtonState.mouseInside .~ True
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else if b then -- && not mouseInside --> entering
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do modify $ ui.uiButtonState.mouseInside .~ True
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case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target_ <- fromJust (ma ^? onMouseEnter) (px -: px') target --TODO unsafe fromJust
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target' <- fromJust (ma ^? onMouseMove) (px -: px') target_ --TODO unsafe fromJust
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modify $ ui.uiMap %~ Map.insert uiw target'
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modify $ ui.uiMap %~ Map.insert wid target'
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Nothing -> return ()
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else -- not isIn && mouseInside --> leaving
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do modify $ ui.uiButtonState.mouseInside .~ False
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case target ^. eventHandlers.(at MouseMotionEvent) of --existing handler?
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Just ma -> do
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target_ <- fromJust (ma ^? onMouseLeave) (px -: px') target --TODO unsafe fromJust
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target' <- fromJust (ma ^? onMouseMove) (px -: px') target_ -- TODO unsafe fromJust
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modify $ ui.uiMap %~ Map.insert uiw target'
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Nothing -> return ()
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if state ^. ui.uiButtonState.mousePressed <= 0 -- change mouse-active widget?
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then mouseSwitchMouseActive px
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else return ()
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else -- not b && mouseInside --> leaving
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do mouseSetLeaving wid (px -: px')
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when (state ^. ui.uiButtonState.mousePressed <= 0) -- change mouse-active widget?
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$ mouseSetMouseActive px
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Right childHit -> do
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mouseSetLeaving wid (px -: px')
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when (state ^. ui.uiButtonState.mousePressed <= 0) -- change mouse-active widget?
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$ mouseSetMouseActiveTargeted childHit px
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Nothing -> do
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mouseSwitchMouseActive px
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mouseSetMouseActive px
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-- | Handler for UI-Inputs.
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-- Indicates a primary click on something (e.g. left-click, touch on Touchpad, fire on Gamepad, ...
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clickHandler :: MouseButton -> Pixel -> Pioneers ()
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clickHandler btn pos@(x,y) = do
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state <- get
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let hMap = state ^. ui.uiMap
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roots <- getRootIds
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hits <- liftM concat $ mapM (getInsideId hMap pos) roots
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hits <- liftM concat $ mapM (getInsideId pos) roots
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case hits of
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[] -> liftIO $ putStrLn $ unwords [show btn ++ ":press on (",show x,",",show y,")"]
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_ -> do
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changes <- mapM (\(uid, pos') -> do
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let w = toGUIAny hMap uid
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state <- get
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let w = toGUIAny (state ^. ui.uiMap) uid
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short = w ^. baseProperties.shorthand
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bound <- w ^. baseProperties.boundary
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prio <- w ^. baseProperties.priority
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@ -252,7 +283,8 @@ clickHandler btn pos@(x,y) = do
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return $ Just (uid, w'')
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Nothing -> return Nothing
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) hits
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let newMap :: Map.HashMap UIId (GUIWidget Pioneers)
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state <- get
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let hMap = state ^. ui.uiMap
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newMap = foldl' (\hm (uid, w') -> Map.insert uid w' hm) hMap $ catMaybes changes
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modify $ ui.uiMap .~ newMap
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return ()
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@ -196,7 +196,7 @@ data GUIBaseProperties m = BaseProperties
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-- The default implementations tests if the point is within the rectangle specified by the
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-- 'getBoundary' function.
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_isInside :: GUIWidget m
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-> Pixel -- ^screen position
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-> Pixel -- ^local coordinates
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-> m Bool
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,
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-- |The @_getPriority@ function returns the priority score of a @GUIWidget@.
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@ -2,6 +2,8 @@ module UI.UIOperations where
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import Control.Lens ((^.))
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import Control.Monad (liftM)
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--import Control.Monad.IO.Class (liftIO)
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import Control.Monad.RWS.Strict (get)
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import qualified Data.HashMap.Strict as Map
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import Data.Maybe
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@ -19,6 +21,14 @@ toGUIAnys m = mapMaybe (`Map.lookup` m)
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{-# INLINABLE toGUIAnys #-}
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-- TODO: check for missing components?
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-- | Tests whether a point is inside a widget by testing its bounding box first.
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isInsideFast :: Monad m => GUIWidget m
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-> Pixel -- ^ local coordinates
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-> m Bool
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isInsideFast wg px = do
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(_, _, w, h) <- wg ^. baseProperties.boundary
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liftM (isInsideExtent (w, h) px &&) $ (wg ^. baseProperties.isInside) wg px
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-- |The function 'getInsideId' returns child widgets that overlap with a
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-- specific screen position and the pixel's local coordinates.
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@ -27,27 +37,49 @@ toGUIAnys m = mapMaybe (`Map.lookup` m)
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-- considered part of the component. The function returns all hit widgets that
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-- have no hit children, which may be the input widget itself,
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-- or @[]@ if the point does not hit the widget.
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getInsideId :: Map.HashMap UIId (GUIWidget Pioneers) -- ^map containing ui widgets
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-> Pixel -- ^screen position
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getInsideId :: Pixel -- ^parent’s local coordinates
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-> UIId -- ^the parent widget
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-> Pioneers [(UIId, Pixel)]
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getInsideId hMap px uid = do
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let wg = toGUIAny hMap uid
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bnd@(bX, bY, _, _) <- wg ^. baseProperties.boundary
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getInsideId px uid = do
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state <- get
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let wg = toGUIAny (state ^. ui.uiMap) uid
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(bX, bY, _, _) <- wg ^. baseProperties.boundary
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let px' = px -: (bX, bY)
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inside <- liftM (isInsideRect bnd px &&) $ (wg ^. baseProperties.isInside) wg px'
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inside <- isInsideFast wg px'
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if inside -- test inside parent's bounding box
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then do
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childrenIds <- wg ^. baseProperties.children
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hitChildren <- liftM concat $ mapM (getInsideId hMap px') childrenIds
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hitChildren <- liftM concat $ mapM (getInsideId px') childrenIds
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case hitChildren of
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[] -> return [(uid, px')]
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_ -> return hitChildren
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else return []
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--TODO: Priority queue?
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--TODO: only needs to return single target if non-overlapping-child convention applies
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-- TODO not needed if non-overlapping-child convention applies
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getLeadingWidget :: [(UIId, Pixel)] -- ^widgets and their screen positions
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-> Pioneers (Maybe (UIId, Pixel)) -- ^the leading widget
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getLeadingWidget [] = return Nothing
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getLeadingWidget (x:_) = return $ Just x
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-- |The function 'isHittingChild' tests if a pixel is hitting a child of the given widget.
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--
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-- @'Left' 'False'@ is returned if the point is outside the widget,
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-- @'Left' 'True'@ is returned if the point is inside the widget and hits no child and
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-- 'Right' in combination with both the innermost hit child and the position’s local coordinates
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-- is returned otherwise.
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isHittingChild :: Pixel -- ^parent’s local coordinates
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-> GUIWidget Pioneers -- ^parent widget
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-> Pioneers (Either Bool (UIId, Pixel))
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isHittingChild px wg = do
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isIn <- isInsideFast wg px
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if isIn
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then do
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chld <- wg ^. baseProperties.children
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hitChld <- liftM concat $ mapM (getInsideId px) chld
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hitLead <- getLeadingWidget hitChld
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case hitLead of
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Nothing -> return $ Left True
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Just h -> return $ Right h
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else return $ Left False
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