) where
import qualified Graphics.UI.Gtk as Gtk
+import Graphics.UI.Gtk (AttrOp(..)) -- For the := constructor
+import qualified Graphics.Rendering.Cairo as Cairo
+import qualified Graphics.UI.Gtk.Gdk.EventM as EventM
+
+import Control.Monad.Trans -- for liftIO
import Data.IORef
import Control.Applicative
import Control.Monad
point = Point
pt = Point
-runTina :: TinaProgram -> IO ()
-runTina p = return ()
-
data Request
= GfxLines Color [Point] -- coloured line through a list of points
| GfxPolygon Color [Point] -- filled polygon of given colour
}
data IState = forall s. IS
- { {-sFrame :: Frame ()
- , sPanel :: Panel ()
- , buffer :: MemoryDC ()
- , -}postponed :: IORef [Request]
+ { window :: Gtk.Window
+ , buffer :: IORef Cairo.Surface
+ , postponed :: IORef [Request]
, usrState :: IORef s
, usrProg :: TinaStep s
}
-{-
-dbgLog IS {..} s = do
- return ()
processPostponed :: IState -> IO ()
processPostponed s@IS {..} = do
runTina Main {..} = do
usrState <- newIORef initialState
postponed <- newIORef (GfxText (rgb 0 0 0) (pt 50 50) "foo" : GfxClear :initialRequests)
- let state = IS { sFrame = undefined, sPanel = undefined, buffer = undefined, usrProg = eventHandler, .. }
- run $ runGUI (sz windowWidth windowHeight) state
- putStrLn "XX"
- runGUI (sz windowWidth windowHeight) state
+ let state = IS { window = undefined, buffer = undefined, usrProg = eventHandler, .. }
+ runGUI windowWidth windowHeight state
+
+runGUI :: Int -> Int -> IState -> IO ()
+runGUI w h (IS { .. }) = do
+ -- Init GTK.
+ Gtk.initGUI
+
+ -- Create a window, which will make the mainloop terminated when
+ -- it is closed.
+ window <- Gtk.windowNew
+
+ Gtk.set window [ Gtk.containerBorderWidth := 10
+ , Gtk.windowTitle := "FP Practicum"
+ , Gtk.windowDefaultWidth := w
+ , Gtk.windowDefaultHeight := h
+ ]
+ Gtk.onDestroy window Gtk.mainQuit
+
+ -- Create a buffer to draw on (name the actual buffer buffer', so we
+ -- can use IS { .. } syntax below to pack the state. Using a record update
+ -- wouldn't work, probably because Cairo.Surface contains an existential
+ -- type...
+ -- We put the buffer in an IORef, so we can change it for a new one
+ -- later on (on window resizes).
+ buffer' <- Cairo.createImageSurface Cairo.FormatARGB32 w h
+ buffer <- newIORef buffer'
+
+ -- Register the expose event
+ Gtk.on window Gtk.exposeEvent $ onExpose buffer
+
+ -- Repack state
+ let state = IS { .. }
+
+ -- Show the window and start the Gtk mainloop.
+ Gtk.widgetShowAll window
+ Gtk.mainGUI
+
+-- | Copy the given surface to the exposed window on an expose event.
+onExpose :: IORef Cairo.Surface -> EventM.EventM EventM.EExpose Bool
+onExpose buffer = do
+ current_buffer <- liftIO $ readIORef buffer
+ dw <- EventM.eventWindow
+ -- Copy the buffer to the window
+ liftIO $ Gtk.renderWithDrawable dw $ do
+ Cairo.setSourceSurface current_buffer 0 0
+ Cairo.paint
+ return True -- No clue what this means
-runGUI :: Size -> IState -> IO ()
+{-
runGUI s IS {..} = do
sFrame <- frame
[ text := "FP Practicum"
]
windowSetFocus sFrame
processPostponed state
-
onPaint :: IState -> DC a -> Rect -> IO ()
onPaint IS {..} dest va = do
dcBlit dest va buffer (Point 0 0) wxCOPY False >> return ()
transKey prod KeyTab = prod '\t'
transKey _ _ = return ()
+-}
-
-
+{-
miscHandler s@IS {..} (FRead fn ) = Just $ readFile fn >>= post s . FileContents fn
miscHandler IS {..} (FWrite fn cnts) = Just $ writeFile fn cnts
miscHandler IS {..} ReqQuit = Just $ putStrLn "Quiting" >> wxcAppExit
+-}
miscHandler IS {..} _ = Nothing
+{-
winHandler s@IS {..} (WinPrompt st1 st2 st3) = Just $ textDialog sFrame st1 st2 st3 >>= post s . PromptResponse st1 st2
winHandler IS {..} (WinTitle st) = Just $ sFrame `set` [text := st]
winHandler s@IS {..} (WinMenu ms) = Just $ mkMenu >>= \ms' -> sFrame `set` [menuBar := ms']
| item <- items ]
return p
| (name,items) <- ms ]
+-}
winHandler _ _ = Nothing
+{-
gfxHandler IS {..} (GfxLines col ps) = Just $ polyline buffer ps [penColor := col] >> dirtyPts sPanel ps
gfxHandler IS {..} (GfxPolygon col ps) = Just $ polygon buffer ps [penColor := col, brushColor := col] >> dirtyPts sPanel ps
gfxHandler IS {..} (GfxText col xy st) = Just $ drawText buffer st xy [textColor := col] >> getTextExtent buffer st >>= dirtyRect' sPanel xy
gfxHandler IS {..} (GfxFont st sz) = Just $ buffer `set` [ fontSize := sz, fontFace := st ]
gfxHandler IS {..} GfxClear = Just $ dcClear buffer >> windowRefresh sPanel False
gfxHandler IS {..} (GfxPicture fd pt) = Just $ bitmapCreateFromFile fd >>= \bm -> drawBitmap buffer bm pt False [] >> bitmapGetSize bm >>= dirtyRect' sPanel pt
+-}
gfxHandler _ _ = Nothing
+{-
dirtyPts :: Window a -> [Point] -> IO ()
dirtyPts dc ps = dirtyRect' dc (pt x y) Size {..}
where
projects / matthijs / projects / fpprac.git / blobdiff