X-Git-Url: https://svn.cri.ensmp.fr/git/minwii.git/blobdiff_plain/2b9d34e4fd258c988ccb7796d918fdf40f4d9937..1a92a61309c2949f228b6dc70c346fcff514f134:/src/app/widgets/playingscreen.py diff --git a/src/app/widgets/playingscreen.py b/src/app/widgets/playingscreen.py index f65d8e5..7e94d0e 100755 --- a/src/app/widgets/playingscreen.py +++ b/src/app/widgets/playingscreen.py @@ -7,30 +7,63 @@ $Id$ $URL$ """ import pygame -# TODO : positionner cette constance en fonction de la résolution d'affichage -BORDER = 5 # 5px +from colorsys import hls_to_rgb +from gradients import gradients +from cursors import WarpingCursor +import events +from eventutils import event_handler, EventDispatcher, EventHandlerMixin +from math import floor +import types +from musicxml import Tone +import fluidsynth -class _PlayingScreenBase(object) : - def __init__(self, distinctNotes=[]) : +from config import FRAMERATE +from config import BORDER +from config import FIRST_HUE +from config import OFF_LUMINANCE +from config import OFF_SATURATION +from config import ON_TOP_LUMINANCE +from config import ON_BOTTOM_LUMINANCE +from config import ON_SATURATION +from config import ON_COLUMN_OVERSIZING +from config import ON_COLUMN_ALPHA +from config import FONT +from config import FONT_COLOR + +BACKGROUND_LAYER = 0 +FOREGROUND_LAYER = 1 +CURSOR_LAYER = 2 + +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. """ + super(_PlayingScreenBase, self).__init__() + self.synth = synth self.distinctNotes = distinctNotes + self.keyboardLength = 0 self.keyboardRects = [] + self.cursor = None self._initRects() - self.drawColumns() + self._initColumns() + self._running = False + self.draw(pygame.display.get_surface()) + self._initCursor() 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() @@ -38,33 +71,154 @@ class _PlayingScreenBase(object) : 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 = [] - 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 - - 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) - 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() + + @event_handler(pygame.KEYDOWN) + def handleKeyDown(self, event) : + if event.key == pygame.K_q: + self._running = False + + +class PlayingScreen(_PlayingScreenBase) : + "fenêtre de jeu pour improvisation" + 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, 64) + + @event_handler(events.NOTEOFF) + def noteoff(self, evt) : + tone = evt.tone + self.synth.noteoff(0, tone.midi) class SongPlayingScreen(_PlayingScreenBase) : - def __init__(self, song) : - super(SongPlayingScreen, self).__init__(song.) + def __init__(self, synth, song) : + super(SongPlayingScreen, self).__init__(synth, song.distinctNotes) self.song = song + @event_handler(events.NOTEON) + def noteon(self, evt) : + tone = evt.tone + self.synth.noteon(0, tone.midi, 64) + + @event_handler(events.NOTEOFF) + def noteoff(self, evt) : + tone = evt.tone + self.synth.noteoff(0, tone.midi) + + +class Column(pygame.sprite.DirtySprite, EventHandlerMixin) : + + def __init__(self, group, hue, rect, tone) : + pygame.sprite.DirtySprite.__init__(self, group) + self.tone = tone + toneName = FONT.render(tone.nom, True, (0,0,0)) + sur = pygame.surface.Surface(rect.size) + rgba = hls_to_rgba_8bits(hue, OFF_LUMINANCE, OFF_SATURATION) + sur.fill(rgba) + w, h = rect.w, rect.h + tw, th, = toneName.get_size() + toneRect = pygame.Rect(((w - tw) / 2, h - th), (tw, th)) + sur.blit(toneName, toneRect) + self.stateOff = sur + self.rectOff = rect + + topRgba = hls_to_rgba_8bits(hue, ON_TOP_LUMINANCE, ON_SATURATION, ON_COLUMN_ALPHA) + bottomRgba = hls_to_rgba_8bits(hue, ON_BOTTOM_LUMINANCE, ON_SATURATION, ON_COLUMN_ALPHA) + onWidth = rect.width * ON_COLUMN_OVERSIZING + onLeft = rect.centerx - onWidth / 2 + rectOn = pygame.Rect((onLeft, 0), + (onWidth, rect.height)) + self.stateOn = gradients.vertical(rectOn.size, topRgba, bottomRgba) + w, h = rectOn.w, rectOn.h + toneRect = pygame.Rect(((w - tw) / 2, h - th), (tw, th)) + self.stateOn.blit(toneName, toneRect) + self.rectOn = rectOn + + self.image = self.stateOff + self.rect = rect + + def update(self, state) : + group = self.groups()[0] + if state : + group.change_layer(self, FOREGROUND_LAYER) + self.image = self.stateOn + self.rect = self.rectOn + else : + group.change_layer(self, BACKGROUND_LAYER) + self.image = self.stateOff + self.rect = self.rectOff + + @event_handler(pygame.MOUSEBUTTONDOWN) + def onMouseDown(self, event) : + if self.rect.collidepoint(*event.pos) : + self.update(True) + self.raiseNoteOn() -class Column(pygame.sprite.Sprite) : + @event_handler(pygame.MOUSEBUTTONUP) + def onMouseUp(self, event) : + self.update(False) + self.raiseNoteOff() - def __init__(self, color) : - pass \ No newline at end of file + def raiseNoteOn(self) : + evt = pygame.event.Event(events.NOTEON, tone=self.tone) + pygame.event.post(evt) + + def raiseNoteOff(self) : + evt = pygame.event.Event(events.NOTEOFF, tone=self.tone) + pygame.event.post(evt) + + + +def hls_to_rgba_8bits(h, l, s, a=1) : + #convert to rgb ranging from 0 to 255 + rgba = [floor(255 * i) for i in hls_to_rgb(h, l, s) + (a,)] + return tuple(rgba)