--- /dev/null
+# -*- coding: utf-8 -*-
+"""
+bande qui compose le clavier minwii
+
+$Id$
+$URL$
+"""
+import pygame
+import gradients
+from math import floor
+from globals import BACKGROUND_LAYER
+from globals import FOREGROUND_LAYER
+from globals import hls_to_rgba_8bits
+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 LYRICS_FONT, NOTES_FONT
+from config import FONT_COLOR
+import events
+
+
+class Column(pygame.sprite.DirtySprite) :
+ ''' colonne utilisée pour l'affichage d'une touche du clavier de jeu.
+ '''
+
+ def __init__(self, group, index, hue, rect, tone) :
+ pygame.sprite.DirtySprite.__init__(self, group)
+ self.index = index
+ self.state = False
+
+ # nom de l'intonation
+ self.tone = tone
+ toneName = NOTES_FONT.render(tone.nom, True, FONT_COLOR)
+
+ # 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
+
+ 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()
+ rect = self.rectOn
+ renderedSyl = LYRICS_FONT.render(syllabus, True, FONT_COLOR)
+ sw, sh, = renderedSyl.get_size()
+ w, h = self.rectOn.w, self.rectOn.h
+
+ if sw > self.rectOn.w :
+ sur = pygame.transform.scale(sur, (sw, h))
+ rect = rect.inflate(sw - w, 0)
+ w = sw
+
+ screenWidth = group.dispWidth
+ if rect.left < 0 :
+ rect.left = 0
+ elif rect.right > screenWidth :
+ rect.right = screenWidth
+
+ sylRect = pygame.Rect(((w - sw) / 2, (h - sh) / 2), (sw, sh))
+ sur.blit(renderedSyl, sylRect)
+
+ self.image = sur
+ self.rect = rect
+ else :
+ group.change_layer(self, BACKGROUND_LAYER)
+ self.image = self.surOff
+ self.rect = self.rectOff
+
+ self.state = state
+ self.dirty = 1
+
+ evt = pygame.event.Event(events.COLSTATECHANGE, column=self, state=state, syllabus=syllabus)
+ pygame.event.post(evt)