-# -*- coding: utf-8 -*-
-"""
-Écran de jeu MinWii :
-bandes arc-en-ciel représentant un clavier.
-
-$Id$
-$URL$
-"""
-import pygame
-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
-
-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
-from config import DEFAULT_MIDI_VELOCITY
-
-BACKGROUND_LAYER = 0
-FOREGROUND_LAYER = 1
-CURSOR_LAYER = 2
-PLAYING_MODES = {'EASY':0
- ,'NORMAL':1
- ,'ADVANCED':2
- ,'EXPERT':3}
-
-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.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.
- """
- #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()
-
- # taille de la zone d'affichage utile (bordure autour)
- dispWidth = screen.get_width() - 2 * BORDER
- dispHeight = screen.get_height() - 2 * BORDER
-
- columnWidth = int(round(float(dispWidth) / self.keyboardLength))
-
- rects = []
- for i in range(self.keyboardLength) :
- upperLeftCorner = (i*columnWidth + BORDER, BORDER)
- rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight))
- rects.append(rect)
-
- self.keyboardRects = rects
-
- 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 _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, 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, synth, song, mode=PLAYING_MODES['NORMAL']) :
- super(SongPlayingScreen, self).__init__(synth, song.distinctNotes)
- self.song = song
- self.noteIterator = self.song.iterNotes()
- self.play()
-
- def play(self) :
- note, verseIndex = self.noteIterator.next()
- syllabus = note.lyrics[verseIndex].syllabus()
- column = self.columns[note.midi]
- column.update(True, syllabus)
-
-
- @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 Column(pygame.sprite.DirtySprite, EventHandlerMixin) :
-
- def __init__(self, group, hue, rect, tone) :
- pygame.sprite.DirtySprite.__init__(self, group)
- self.state = False
-
- # nom de l'intonation
- self.tone = tone
- toneName = FONT.render(tone.nom, True, (0,0,0))
-
- # état off : surface unie et nom de l'intonation
- 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.surOff = sur
- self.rectOff = rect
-
-
- # état on : surface dégradée avec nom de la note avec largeur agrandie
- 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.surOn = gradients.vertical(rectOn.size, topRgba, bottomRgba)
- w, h = rectOn.w, rectOn.h
- toneRect = pygame.Rect(((w - tw) / 2, h - th), (tw, th))
- self.surOn.blit(toneName, toneRect)
- self.rectOn = rectOn
-
- self.image = self.surOff
- self.rect = rect
- #EventDispatcher.addEventListener(pygame.MOUSEBUTTONDOWN, self.onMouseDown)
- #EventDispatcher.addEventListener(pygame.MOUSEBUTTONUP, self.onMouseUp)
-
- def update(self, state, syllabus='') :
- group = self.groups()[0]
- if state == self.state :
- # no changes
- return
- if state :
- group.change_layer(self, FOREGROUND_LAYER)
- sur = self.surOn
- if syllabus :
- sur = sur.copy()
- renderedSyl = FONT.render(syllabus, True, (0,0,0))
- sw, sh, = renderedSyl.get_size()
- w, h = self.rectOn.w, self.rectOn.h
- sylRect = pygame.Rect(((w - sw) / 2, (h - sh) / 2), (sw, sh))
- sur.blit(renderedSyl, sylRect)
-
- self.image = sur
- self.rect = self.rectOn
- else :
- group.change_layer(self, BACKGROUND_LAYER)
- self.image = self.surOff
- self.rect = self.rectOff
- self.state = state
- self.dirty = 1
-
- @event_handler(pygame.MOUSEBUTTONDOWN)
- def onMouseDown(self, event) :
- if self.rect.collidepoint(*event.pos) :
- self.update(True)
- self.raiseNoteOn()
-
- @event_handler(pygame.MOUSEBUTTONUP)
- def onMouseUp(self, event) :
- self.update(False)
- self.raiseNoteOff()
-
- 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)
projects / minwii.git / blobdiff