Ajout du mode débutant.

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

diff --git a/src/app/widgets/playingscreen.py b/src/app/widgets/playingscreen.py
index 7944204..0735825 100755 (executable)
--- a/src/app/widgets/playingscreen.py
+++ b/src/app/widgets/playingscreen.py
@@ -7,55 +7,59 @@ $Id$
 $URL$
 """
 import pygame
 $URL$
 """
 import pygame

-from colorsys import hls_to_rgb
-from gradients import gradients
-from math import floor
-# TODO : positionner cette constance en fonction de la résolution d'affichage
-# externaliser la conf.
-BORDER = 5 # 5px
-FIRST_HUE = 0.6
-OFF_LUMINANCE = 0.1
-OFF_SATURATION = 1
-ON_TOP_LUMINANCE = 0.6
-ON_BOTTOM_LUMINANCE = 0.9
-ON_SATURATION = 1
-
-class _PlayingScreenBase(pygame.sprite.OrderedUpdates) :
-    def __init__(self, distinctNotes=[]) :
+from cursors import WarpingCursor
+from column import Column
+import events
+from eventutils import event_handler, EventDispatcher, EventHandlerMixin
+import types
+from musicxml import Tone
+
+from config import FRAMERATE
+from config import FIRST_HUE
+from config import MIDI_VELOCITY_RANGE
+from config import MIDI_PAN_RANGE
+from config import MIDI_VELOCITY_WRONG_NOTE_ATTN
+
+from globals import BACKGROUND_LAYER
+from globals import CURSOR_LAYER
+from globals import PLAYING_MODES_DICT
+
+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__()
+        super(PlayingScreenBase, self).__init__()
+        self.synth = synth

         self.distinctNotes = distinctNotes
         self.keyboardLength = 0
         self.keyboardRects = []
         self.distinctNotes = distinctNotes
         self.keyboardLength = 0
         self.keyboardRects = []

+        self.cursor = None

         self._initRects()
         self._initRects()

+        self.columns = {}

         self._initColumns()
         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 :
-            self.keyboardLength = 8
-        else :
-            self.keyboardLength = 11
+        self.keyboardLength = len(self.distinctNotes)

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

-        # taille de la zone d'affichage utile (bordure autour)
-        dispWidth = screen.get_width() - 2 * BORDER
-        dispHeight = screen.get_height() - 2 * BORDER
+        self.dispWidth  = dispWidth = screen.get_width()
+        self.dispHeight = dispHeight = screen.get_height()

         
         columnWidth = int(round(float(dispWidth) / self.keyboardLength))
 
         rects = []
         for i in range(self.keyboardLength) :
         
         columnWidth = int(round(float(dispWidth) / self.keyboardLength))
 
         rects = []
         for i in range(self.keyboardLength) :

-            upperLeftCorner = (i*columnWidth + BORDER, BORDER)
+            upperLeftCorner = (i*columnWidth, 0)

             rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight))
             rects.append(rect)
         
             rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight))
             rects.append(rect)
         


@@ -66,96 +70,248 @@ class _PlayingScreenBase(pygame.sprite.OrderedUpdates) :
         hueStep = FIRST_HUE / (self.keyboardLength - 1)
         for i, rect in enumerate(self.keyboardRects) :
             hue = FIRST_HUE - hueStep * i
         hueStep = FIRST_HUE / (self.keyboardLength - 1)
         for i, rect in enumerate(self.keyboardRects) :
             hue = FIRST_HUE - hueStep * i

-            c = Column(hue, rect)
-            self.add(c)
-            
+            tone = self.distinctNotes[i]
+            c = Column(self, i, hue, rect, tone)
+            self.add(c, layer=BACKGROUND_LAYER)
+            self.columns[tone.midi] = c

         
         

-    def highlightColumn(self, index) :
-        for i, sprite in enumerate(self.sprites()) :
-            sprite.update(i==index)
-        self.draw(pygame.display.get_surface())
+    
+    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)
+    
+    def stop(self) :
+        self._running = False
+        self.synth.system_reset()
+        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 or event.unicode == u'q':
+            self.stop()

     
     

-    def __init__(self, song) :
-        super(SongPlayingScreen, self).__init__(song.distinctNotes)
-        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, event)
+                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, event)
+                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, event)
+                break
+
+    def raiseColDown(self, col, mouseEvent) :
+        evt = pygame.event.Event(events.COLDOWN, column=col, pos=mouseEvent.pos)
+        pygame.event.post(evt)

 
 

-class SongPlayingScreenTest(_PlayingScreenBase) :
-    def __init__(self) :
-        class C:pass
-        o = C()
-        o.midi=1
-        super(SongPlayingScreenTest, self).__init__([o])
-        self.__running = True
-        #pygame.display.flip()
-        #raw_input('allez ?')
+    def raiseColUp(self, col, mouseEvent) :
+        evt = pygame.event.Event(events.COLUP, column=col, pos=mouseEvent.pos)
+        pygame.event.post(evt)

     
     

-    def run(self):
-        while self.__running :
-            pygame.display.flip()
-            events = pygame.event.get()
-            for event in events:
-                self.input(event)
-    
-    def input(self, event) :
-        if event.type == pygame.KEYDOWN:
-            if event.key == pygame.K_q:
-                self.__running = False
-            uni = event.unicode
-            if uni.isdigit() and int(uni) <=8 :
-                self.highlightColumn(int(uni))
-                
-                
-            # if event.key == pygame.K_i:
-            #     self.backToInstrumentChoice = True
-            #     self.done = True
-            #     
-            # if event.key == pygame.K_w:
-            #     self.nextLevel = 0
-            #     self.done = True
-            #     
-            # if event.key == pygame.K_e:
-            #     self.nextLevel = 1
-            #     self.done = True
-            #     
-            # if event.key == pygame.K_r:
-            #     self.nextLevel = 2
-            #     self.done = True
-            #     
-            # if event.key == pygame.K_t:
-            #     self.nextLevel = 3
-            #     self.done = True 
-    
-
-class Column(pygame.sprite.Sprite) :
-    
-    def __init__(self, hue, rect) :
-        pygame.sprite.Sprite.__init__(self)
-        sur = pygame.surface.Surface(rect.size)
-        rgba = hls_to_rgba_8bits(hue, OFF_LUMINANCE, OFF_SATURATION)
-        sur.fill(rgba)
-        self.stateOff = sur
+    def raiseColOver(self, col, mouseEvent) :
+        evt = pygame.event.Event(events.COLOVER, column=col, pos=mouseEvent.pos, mouseEvent=mouseEvent)
+        pygame.event.post(evt)
+    
+    def getVelocity(self, pos) :
+        vel = (float(self.dispWidth) - pos[1]) / self.dispWidth
+        vel = int(vel * (MIDI_VELOCITY_RANGE[1] - MIDI_VELOCITY_RANGE[0])) + MIDI_VELOCITY_RANGE[0]
+        return vel

         
         

-        topRgba = hls_to_rgba_8bits(hue, ON_TOP_LUMINANCE, ON_SATURATION)
-        bottomRgba = hls_to_rgba_8bits(hue, ON_BOTTOM_LUMINANCE, ON_SATURATION)
-        size = rect.inflate(2*rect.width,0).size
-        print rect.size, size
-        self.stateOn = gradients.vertical(size, topRgba, bottomRgba)
+    def getPan(self, index) :
+        pan = float(index) / (self.keyboardLength -1)
+        pan = int(pan * (MIDI_PAN_RANGE[1] - MIDI_PAN_RANGE[0])) + MIDI_PAN_RANGE[0]
+        return pan
+    
+    def playnote(self, col, pos, vel=None) :
+        pan = self.getPan(col.index)
+        self.synth.cc(0, 10, pan)
+        vel = vel or self.getVelocity(pos)
+        self.synth.noteon(0, col.tone.midi, vel)

         
         

-        self.image = self.stateOff
-        self.rect = rect
+class PlayingScreen(PlayingScreenBase) :
+    "fenêtre de jeu pour improvisation"

     
     

-    def update(self, state) :
-        if state :
-            self.image = self.stateOn
-        else :
-            self.image = self.stateOff
+    scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
+
+    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, 96)
+
+    @event_handler(events.NOTEOFF)
+    def noteoff(self, evt) :
+        tone = evt.tone
+        self.synth.noteoff(0, tone.midi)
+
+
+class SongPlayingScreen(PlayingScreenBase) :
+    
+    def __init__(self, synth, song, mode=PLAYING_MODES_DICT['NORMAL']) :
+        super(SongPlayingScreen, self).__init__(synth, song.distinctNotes)
+        self.song = song
+        self.quarterNoteDuration = song.quarterNoteDuration
+        self.currentColumn = None
+        self.noteIterator = self.song.iterNotes()
+        self.displayNext()
+        self._plugListeners(mode)
+    
+    def _plugListeners(self, mode) :
+        "initialisation des gestionnaires d'événements en fonction du mode"
+
+        if mode == PLAYING_MODES_DICT['BEGINNER'] :
+            EventDispatcher.addEventListener(events.COLOVER, self.handleBeginnerColumnOver)
+
+        elif mode == PLAYING_MODES_DICT['EASY'] :
+            EventDispatcher.addEventListener(events.COLDOWN, self.handleEasyColumnDown)
+            EventDispatcher.addEventListener(events.COLOVER, self.handleEasyColumnOver)

         
         

-def hls_to_rgba_8bits(h, l, s) :
-    #convert to rgb ranging from 0 to 255
-    rgba = [floor(255 * i) for i in hls_to_rgb(h, l, s) + (1,)]
-    return tuple(rgba)
-        
\ No newline at end of file
+        elif mode == PLAYING_MODES_DICT['NORMAL'] :
+            EventDispatcher.addEventListener(events.COLOVER, self.handleNormalColumnOver)
+            EventDispatcher.addEventListener(events.COLDOWN, self.handleColumnDown)
+            EventDispatcher.addEventListener(events.COLUP, self.handleColumnUp)
+
+        elif mode == PLAYING_MODES_DICT['ADVANCED'] :
+            EventDispatcher.addEventListener(events.COLDOWN, self.handleColumnDown)
+            EventDispatcher.addEventListener(events.COLUP, self.handleColumnUp)
+
+        elif mode == PLAYING_MODES_DICT['EXPERT'] :
+            EventDispatcher.addEventListener(events.COLDOWN, self.handleExpertColumnDown)
+            EventDispatcher.addEventListener(events.COLUP, self.handleExpertColumnUp)
+
+            
+    # --- HID listeners ---
+    def handleBeginnerColumnOver(self, event) :
+        col = event.column
+        if col.state and not self.currentNotePlayed :
+            self.playnote(col, event.pos)
+            SongPlayingScreen.setNoteTimeout(
+                        int(self.currentNote.duration * \
+                            self.quarterNoteDuration)
+                                            )
+            self.currentNotePlayed = True
+
+    def handleEasyColumnOver(self, event) :
+        col = event.column
+        if col.state and \
+           any(event.mouseEvent.buttons) and \
+           not self.currentNotePlayed :
+            self.playnote(col, event.pos)
+            SongPlayingScreen.setNoteTimeout(
+                        int(self.currentNote.duration * \
+                            self.quarterNoteDuration)
+                                            )
+            self.currentNotePlayed = True
+
+    
+    def handleNormalColumnOver(self, event) :
+        col = event.column
+        if col.state and \
+           any(event.mouseEvent.buttons) and \
+           not self.currentNotePlayed :
+            self.playnote(col, event.pos)
+            self.currentNotePlayed = True
+
+    def handleColumnDown(self, event) :
+        col = event.column
+        if col.state:
+            self.playnote(col, event.pos)
+            self.currentNotePlayed = True
+    
+    def handleEasyColumnDown(self, event) :
+        col = event.column
+        if col.state and \
+           not self.currentNotePlayed :
+            self.playnote(col, event.pos)
+            SongPlayingScreen.setNoteTimeout(
+                        int(self.currentNote.duration * \
+                            self.quarterNoteDuration)
+                                            )
+            self.currentNotePlayed = True
+
+
+    def handleExpertColumnDown(self, event) :
+        col = event.column
+        if col.state :
+            self.playnote(col, event.pos)
+            self.currentNotePlayed = True
+        else :
+            vel = self.getVelocity(event.pos) * MIDI_VELOCITY_WRONG_NOTE_ATTN
+            vel = int(vel)
+            self.playnote(col, event.pos, vel=vel)
+            self.alternateColumn = col
+            self.currentNotePlayed = False
+
+    def handleColumnUp(self, event) :
+        if self.currentNotePlayed :
+            self.synth.noteoff(0, self.currentColumn.tone.midi)
+            self.displayNext()
+    
+    def handleExpertColumnUp(self, event) :
+        if self.currentNotePlayed :
+            self.synth.noteoff(0, self.currentColumn.tone.midi)
+            self.displayNext()
+        else :
+            self.synth.noteoff(0, self.alternateColumn.tone.midi)
+    
+    # --- End HID listeners ---
+
+
+    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
+    
+    @event_handler(events.NOTEEND)
+    def clearTimeOutAndDisplayNext(self, evt) : 
+        pygame.time.set_timer(evt.type, 0)
+        self.synth.noteoff(0, self.currentNote.midi)
+        self.displayNext()
+    
+    @staticmethod
+    def setNoteTimeout(delay) :
+        pygame.time.set_timer(events.NOTEEND, delay)
+    
+    def stop(self) :
+        pygame.time.set_timer(events.NOTEEND, 0)
+        super(SongPlayingScreen, self).stop()
+       
+       
\ No newline at end of file