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import pygtk
pygtk.require( '2.0' )
import gtk
from Framework.Constants import Constants
from Framework.CSound.CSoundConstants import CSoundConstants
from GUI.GUIConstants import GUIConstants
from GUI.Core.NoteParametersWindow import NoteParametersWindow
from BackgroundView import SELECTNOTES
#----------------------------------------------------------------------
# TODO: currently we are only using CSoundNotes,
# - this should updated to handle generic Note objects
#----------------------------------------------------------------------
#----------------------------------------------------------------------
# A view for the (CSound)Note class
#----------------------------------------------------------------------
class NoteView:
#-----------------------------------
# initialization
# TODO: not sure if passing in beatsPerPageAdjustment is the best way to go about it
#-----------------------------------
def __init__( self, note, track, beatsPerPageAdjustment ):
self.note = note
self.track = track
self.beatsPerPageAdjustment = beatsPerPageAdjustment
self.posOffset = (0,0)
self.baseOnset = self.basePitch = self.baseDuration = self.lastDragX = self.lastDragY = self.lastDragW = 0 # note dragging properties
self.sampleNote = None
self.parentSize = False
self.selected = False
self.potentialDeselect = False
def getNoteParameters( self ):
self.note.pitch = self.noteParameters.pitchAdjust.value
self.note.amplitude = self.noteParameters.amplitudeAdjust.value
self.note.pan = self.noteParameters.panAdjust.value
self.note.attack = self.noteParameters.attackAdjust.value
self.note.decay = self.noteParameters.decayAdjust.value
self.note.reverbSend = self.noteParameters.reverbSendAdjust.value
self.note.filterType = self.noteParameters.filterType
self.note.filterCutoff = self.noteParameters.filterCutoff
self.note.tied = self.noteParameters.tied
self.note.overlap = self.noteParameters.overlap
def handleButtonPress( self, emitter, event ):
eX = event.x - self.x
eY = event.y - self.y
if eX < 0 or eX > self.width \
or eY < 0 or eY > self.height:
return False
if event.button == 3:
self.noteParameters = NoteParametersWindow( self.note, self.getNoteParameters )
return True
if event.type == gtk.gdk._2BUTTON_PRESS: # select bar
self.potentialDeselect = False
emitter.selectNotesByBar( self.track.getID(), self.x, self.x+self.width )
elif event.type == gtk.gdk._3BUTTON_PRESS: # select track
self.potentialDeselect = False
emitter.selectNotesByTrack( self.track.getID() )
else:
if self.getSelected(): # we already selected, might want to delected
self.potentialDeselect = True
else:
emitter.selectNotes( { self.track.getID(): [ self ] } )
self.updateSampleNote( self.note.pitch )
percent = eX/self.width
if percent < 0.3: emitter.setCurrentAction( "note-drag-onset", self )
elif percent > 0.7: emitter.setCurrentAction( "note-drag-duration", self )
else: emitter.setCurrentAction( "note-drag-pitch", self )
emitter.dirty()
return True
def handleButtonRelease( self, emitter, event, buttonPressCount ):
if self.potentialDeselect:
self.potentialDeselect = False
emitter.deselectNotes( { self.track.getID(): [ self ] } )
self.clearSampleNote()
emitter.doneCurrentAction()
return True
def noteDrag( self, emitter, dx, dy, dw ):
self.potentialDeselect = False
ticksPerPixel = (round( self.beatsPerPageAdjustment.value, 0 ) * Constants.TICKS_PER_BEAT) / self.parentSize[0]
stepPerPixel = (Constants.NUMBER_OF_POSSIBLE_PITCHES-1) / (self.parentSize[1] - self.height)
pitchPerStep = (Constants.MAXIMUM_PITCH-Constants.MINIMUM_PITCH)/(Constants.NUMBER_OF_POSSIBLE_PITCHES-1)
if dx != self.lastDragX:
self.lastDragX = dx
self.note.onset = self.baseOnset + int(dx*ticksPerPixel)
if dy != self.lastDragY:
self.lastDragY = dy
newPitch = self.basePitch + round(-dy*stepPerPixel)*pitchPerStep
self.note.pitch = newPitch
self.updateSampleNote( newPitch )
if dw != self.lastDragW:
self.lastDragW = dw
self.note.duration = self.baseDuration + int(dw*ticksPerPixel)
self.updateTransform( False )
def doneNoteDrag( self, emitter ):
self.baseOnset = self.note.onset
self.basePitch = self.note.pitch
self.baseDuration = self.note.duration
self.lastDragX = 0
self.lastDragY = 0
self.lastDragW = 0
self.clearSampleNote()
def handleMarqueeSelect( self, emitter, start, stop ):
intersectionY = [ max(start[1],self.y), min(stop[1],self.y+self.height) ]
if intersectionY[0] > intersectionY[1]:
return False
intersectionX = [ max(start[0],self.x), min(stop[0],self.x+self.width) ]
if intersectionX[0] > intersectionX[1]:
return False
return True
#-----------------------------------
# draw
#-----------------------------------
def setPositionOffset( self, offset ):
self.posOffset = offset
if self.parentSize: self.updateTransform( False )
def draw( self, context ):
lineW = GUIConstants.NOTE_BORDER_SIZE
lineWDIV2 = lineW/2.0
context.set_line_width( lineW )
context.move_to( self.x + lineWDIV2, self.y + lineWDIV2 )
context.rel_line_to( self.width - lineW, 0 )
context.rel_line_to( 0, self.height - lineW )
context.rel_line_to( -self.width + lineW, 0 )
context.close_path()
#background
colour = 1 - ( ( self.note.amplitude * 0.7 ) + 0.3 )
context.set_source_rgb( colour, colour, colour )
context.fill_preserve()
#border
if self.selected: context.set_source_rgb( 1, 1, 1 )
else: context.set_source_rgb( 0, 0, 0 )
context.stroke()
#-----------------------------------
# update
#-----------------------------------
def updateTransform( self, parentSize ):
if parentSize: self.parentSize = parentSize
self.width = int( self.parentSize[0] * self.note.duration / (round( self.beatsPerPageAdjustment.value, 0 ) * Constants.TICKS_PER_BEAT) )
self.height = round( max( GUIConstants.MINIMUM_NOTE_HEIGHT, self.parentSize[1] / (Constants.NUMBER_OF_POSSIBLE_PITCHES-1) ) )
self.x = int( self.parentSize[0] * self.note.onset / (round( self.beatsPerPageAdjustment.value, 0 ) * Constants.TICKS_PER_BEAT) ) \
+ self.posOffset[0]
self.y = round( (self.parentSize[1]-self.height) * ( Constants.MAXIMUM_PITCH - self.note.pitch ) / (Constants.NUMBER_OF_POSSIBLE_PITCHES-1) ) \
+ self.posOffset[1]
def checkX( self, startx, stopx ):
if self.x >= startx and self.x < stopx: return True
else: return False
def getStartTick( self ):
return self.note.onset
def getEndTick( self ):
return self.note.onset + self.note.duration
def updateDragLimits( self, dragLimits, leftBound, rightBound, widthBound ):
pixelsPerTick = self.parentSize[0] / (round( self.beatsPerPageAdjustment.value, 0 ) * Constants.TICKS_PER_BEAT)
pixelsPerPitch = (self.parentSize[1] - self.height) / (Constants.MAXIMUM_PITCH - Constants.MINIMUM_PITCH)
left = (leftBound - self.note.onset) * pixelsPerTick
right = (rightBound - self.note.duration - self.note.onset) * pixelsPerTick
up = (self.note.pitch - Constants.MAXIMUM_PITCH) * pixelsPerPitch
down = (self.note.pitch - Constants.MINIMUM_PITCH) * pixelsPerPitch
short = (Constants.MINIMUM_NOTE_DURATION - self.note.duration) * pixelsPerTick
long = (widthBound - self.note.duration - self.note.onset) * pixelsPerTick
if dragLimits[0][0] < left: dragLimits[0][0] = left
if dragLimits[0][1] > right: dragLimits[0][1] = right
if dragLimits[1][0] < up: dragLimits[1][0] = up
if dragLimits[1][1] > down: dragLimits[1][1] = down
if dragLimits[2][0] < short: dragLimits[2][0] = short
if dragLimits[2][1] > long: dragLimits[2][1] = long
# store the current loc as a reference point
self.baseOnset = self.note.onset
self.basePitch = self.note.pitch
self.baseDuration = self.note.duration
def updateSampleNote( self, pitch ):
if self.sampleNote == None:
self.sampleNote = self.note.clone()
#TODO clean this up:
if CSoundConstants.INSTRUMENTS[ self.sampleNote.instrumentFlag ].csoundInstrumentID == 103:
self.sampleNote.duration = 100
else:
self.sampleNote.duration = -1
self.sampleNote.play()
elif self.sampleNote.pitch != pitch:
self.sampleNote.pitch = pitch
self.sampleNote.play()
def clearSampleNote( self ):
if self.sampleNote != None:
self.sampleNote.duration = 0
self.sampleNote.play()
del self.sampleNote
self.sampleNote = None
#-----------------------------------
# Selection
#-----------------------------------
def setSelected( self, state ):
if self.selected != state:
self.selected = state
return True # state changed
return False # state is the same
def getSelected( self ):
return self.selected
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