prise en charge des indications de tempo des fichiers musicxml. Si absent, le tempo...

[minwii.git] / src / app / widgets / playingscreen.py

diff --git a/src/app/widgets/playingscreen.py b/src/app/widgets/playingscreen.py
index f65d8e5..975f401 100755 (executable)
--- a/src/app/widgets/playingscreen.py
+++ b/src/app/widgets/playingscreen.py
@@ -7,30 +7,52 @@ $Id$
 $URL$
 """
 import pygame
 $URL$
 """
 import pygame

-# TODO : positionner cette constance en fonction de la résolution d'affichage
-BORDER = 5 # 5px
+from cursors import WarpingCursor
+from column import Column
+import events
+from eventutils import event_handler, EventDispatcher, EventHandlerMixin
+import types
+from musicxml import Tone

 
 

-class _PlayingScreenBase(object) :
-    def __init__(self, distinctNotes=[]) :
+from config import FRAMERATE
+from config import BORDER
+from config import FIRST_HUE
+from config import DEFAULT_MIDI_VELOCITY
+
+from globals import BACKGROUND_LAYER
+from globals import CURSOR_LAYER
+from globals import PLAYING_MODES
+
+class _PlayingScreenBase(pygame.sprite.LayeredDirty, EventHandlerMixin) :
+
+    def __init__(self, synth, distinctNotes=[]) :

         """
         distinctNotes : notes disctinctes présentes dans la chanson
         triées du plus grave au plus aigu.
         """
         """
         distinctNotes : notes disctinctes présentes dans la chanson
         triées du plus grave au plus aigu.
         """

+        super(_PlayingScreenBase, self).__init__()
+        self.synth = synth

         self.distinctNotes = distinctNotes
         self.distinctNotes = distinctNotes

+        self.keyboardLength = 0

         self.keyboardRects = []
         self.keyboardRects = []

+        self.cursor = None

         self._initRects()
         self._initRects()

-        self.drawColumns()
-    
+        self.columns = {}
+        self._initColumns()
+        self._running = False
+        self.draw(pygame.display.get_surface())
+        self._initCursor()    

     
     def _initRects(self) :
         """ création des espaces réservés pour
             afficher les colonnes.
         """
     
     def _initRects(self) :
         """ création des espaces réservés pour
             afficher les colonnes.
         """

-        ambitus = self.distinctNotes[-1].midi - self.distinctNotes[0].midi
-        if ambitus <= 12 :
-            keyboardLength = 8
-        else :
-            keyboardLength = 11
+        #ambitus = self.distinctNotes[-1].midi - self.distinctNotes[0].midi
+        #if ambitus <= 12 :
+        #    self.keyboardLength = 8
+        #else :
+        #    self.keyboardLength = 11
+        self.keyboardLength = len(self.distinctNotes)

         
         screen = pygame.display.get_surface()
 
         
         screen = pygame.display.get_surface()
 


@@ -38,33 +60,164 @@ class _PlayingScreenBase(object) :
         dispWidth = screen.get_width() - 2 * BORDER
         dispHeight = screen.get_height() - 2 * BORDER
         
         dispWidth = screen.get_width() - 2 * BORDER
         dispHeight = screen.get_height() - 2 * BORDER
         

-        columnWidth = int(round(float(dispWidth) / keyboardLength))
+        columnWidth = int(round(float(dispWidth) / self.keyboardLength))

 
         rects = []
 
         rects = []

-        for i in range(keyboardLength) :
+        for i in range(self.keyboardLength) :

             upperLeftCorner = (i*columnWidth + BORDER, BORDER)
             rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight))
             rects.append(rect)
         
         self.keyboardRects = rects
             upperLeftCorner = (i*columnWidth + BORDER, BORDER)
             rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight))
             rects.append(rect)
         
         self.keyboardRects = rects

-            

     
     

-    def drawColumns(self) :
-        pass
+    def _initColumns(self) :
+        
+        hueStep = FIRST_HUE / (self.keyboardLength - 1)
+        for i, rect in enumerate(self.keyboardRects) :
+            hue = FIRST_HUE - hueStep * i
+            tone = self.distinctNotes[i]
+            c = Column(self, hue, rect, tone)
+            self.add(c, layer=BACKGROUND_LAYER)
+            self.columns[tone.midi] = c
+        

     
     

-    def highLightColumn(self) :
-        pass
+    def _initCursor(self) :
+        self.cursor = WarpingCursor(blinkMode=True)
+        self.add(self.cursor, layer=CURSOR_LAYER)
+        
+    def run(self):
+        self._running = True
+        clock = pygame.time.Clock()
+        pygame.display.flip()
+        pygame.mouse.set_visible(False)
+        while self._running :
+            EventDispatcher.dispatchEvents()
+            dirty = self.draw(pygame.display.get_surface())
+            pygame.display.update(dirty)
+            clock.tick(FRAMERATE)

 
 

+        pygame.mouse.set_visible(True)
+        self.cursor._stopBlink()

 
 

-class SongPlayingScreen(_PlayingScreenBase) :
+    @event_handler(pygame.KEYDOWN)       
+    def handleKeyDown(self, event) :
+        if event.key == pygame.K_q:
+            self._running = False

     
     

-    def __init__(self, song) :
-        super(SongPlayingScreen, self).__init__(song.)
-        self.song = song
+    @event_handler(pygame.MOUSEBUTTONDOWN)
+    def onMouseDown(self, event) :
+        # TODO à cleaner : on vire le dernier élément
+        # parce qu'il s'agit du curseur
+        for col in reversed(self.sprites()[:-1]) :
+            if col.rect.collidepoint(*event.pos):
+                self.raiseColDown(col)
+                break
+
+    @event_handler(pygame.MOUSEBUTTONUP)
+    def onMouseUp(self, event) :
+        for col in reversed(self.sprites()[:-1]) :
+            if col.rect.collidepoint(*event.pos) :
+                self.raiseColUp(col)
+                break
+
+    @event_handler(pygame.MOUSEMOTION)
+    def onMouseMove(self, event) :
+        for col in reversed(self.sprites()[:-1]) :
+            if col.rect.collidepoint(*event.pos) :
+                self.raiseColOver(col)
+                break
+
+    def raiseColDown(self, col) :
+        evt = pygame.event.Event(events.COLDOWN, column=col)
+        pygame.event.post(evt)
+
+    def raiseColUp(self, col) :
+        evt = pygame.event.Event(events.COLUP, column=col)
+        pygame.event.post(evt)

     
     

+    def raiseColOver(self, col) :
+        evt = pygame.event.Event(events.COLOVER, column=col)
+        pygame.event.post(evt)

 
 

+        
+class PlayingScreen(_PlayingScreenBase) :
+    "fenêtre de jeu pour improvisation"
+    
+    scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]

 
 

-class Column(pygame.sprite.Sprite) :
+    def __init__(self, synth) :
+        distinctNotes = []
+        for midi in self.scale :
+            tone = Tone(midi)
+            distinctNotes.append(tone)
+        
+        super(PlayingScreen, self).__init__(synth, distinctNotes)
+            
+    @event_handler(events.NOTEON)
+    def noteon(self, evt) :
+        tone = evt.tone
+        self.synth.noteon(0, tone.midi, DEFAULT_MIDI_VELOCITY)
+
+    @event_handler(events.NOTEOFF)
+    def noteoff(self, evt) :
+        tone = evt.tone
+        self.synth.noteoff(0, tone.midi)
+
+
+class SongPlayingScreen(_PlayingScreenBase) :

     
     

-    def __init__(self, color) :
-        pass
\ No newline at end of file
+    def __init__(self, synth, song, mode=PLAYING_MODES['EASY']) :
+        super(SongPlayingScreen, self).__init__(synth, song.distinctNotes)
+        self.song = song
+        self.quarterNoteDuration = song.quarterNoteDuration
+        self.currentColumn = None
+        self.noteIterator = self.song.iterNotes()
+        self.displayNext()
+        if mode == PLAYING_MODES['NORMAL'] :
+            EventDispatcher.addEventListener(events.COLDOWN, self.handleColumnDown)
+            EventDispatcher.addEventListener(events.COLUP, self.handleColumnUp)
+        elif mode == PLAYING_MODES['EASY'] :
+            EventDispatcher.addEventListener(events.COLOVER, self.handleColumnOver)
+            
+    
+    def displayNext(self, event=None) :
+        if self.currentColumn:
+            self.currentColumn.update(False)
+        note, verseIndex = self.noteIterator.next()
+        syllabus = note.lyrics[verseIndex].syllabus()
+        column = self.columns[note.midi]
+        column.update(True, syllabus)
+        self.currentColumn = column
+        self.currentNote = note
+        self.currentNotePlayed = False
+    
+    def handleColumnDown(self, event) :
+        col = event.column
+        if col.state:
+            self.synth.noteon(0, col.tone.midi, DEFAULT_MIDI_VELOCITY)
+            self.currentNotePlayed = True
+    
+    def handleColumnUp(self, event) :
+        if self.currentNotePlayed :
+            self.synth.noteoff(0, self.currentColumn.tone.midi)
+            self.displayNext()
+    
+    def handleColumnOver(self, event) :
+        col = event.column
+        if col.state and not self.currentNotePlayed :
+            self.synth.noteon(0, col.tone.midi, DEFAULT_MIDI_VELOCITY)
+            SongPlayingScreen.setNoteTimeout(
+                        int(self.currentNote.duration * \
+                            self.quarterNoteDuration)
+                                            )
+            self.currentNotePlayed = True
+    
+    @event_handler(events.NOTEEND)
+    def clearTimeOutAndDisplayNext(self, evt) : 
+        pygame.time.set_timer(evt.type, 0)
+        self.displayNext()
+    
+    @staticmethod
+    def setNoteTimeout(delay) :
+        pygame.time.set_timer(events.NOTEEND, delay)
+