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import pygtk
pygtk.require( '2.0' )
import gtk
from Framework.Constants import Constants
from GUI.GUIConstants import GUIConstants
from BackgroundView import SELECTNOTES
from NoteView import NoteView
#----------------------------------------------------------------------
# This view class is used to show the contents of a NoteTrack
# i.e. a Collection of Note objects
#----------------------------------------------------------------------
class TrackView:
#-----------------------------------
# initialization functions
#-----------------------------------
def __init__( self, trackID, beatsPerPageAdjustment ):
self.trackID = trackID
self.beatsPerPageAdjustment = beatsPerPageAdjustment
self.noteViews = []
self.posOffset = (0,0)
self.selectedNotes = []
def getID( self ):
return self.trackID
#-----------------------------------
# modification methods
#-----------------------------------
def setNotes( self, notes ):
self.clearNotes()
lineW = self.getBorderWidth()
for note in notes:
noteView = NoteView( note, self, self.beatsPerPageAdjustment )
self.noteViews.append( noteView )
noteView.setPositionOffset( (self.posOffset[0]+lineW, self.posOffset[1]+lineW ) )
self.updateNoteTransforms()
def clearNotes( self ):
del self.noteViews
self.noteViews = []
self.selectedNotes = []
def selectNotes( self, mode, which ):
if mode == SELECTNOTES.ALL:
for note in self.noteViews: note.setSelected( True )
self.selectedNotes = self.noteViews[:]
elif mode == SELECTNOTES.NONE:
for note in self.noteViews: note.setSelected( False )
self.selectedNotes = []
elif mode == SELECTNOTES.ADD:
for note in which:
if note.setSelected( True ):
self.selectedNotes.insert( 0, note )
elif mode == SELECTNOTES.REMOVE:
for note in which:
if note.setSelected( False ):
self.selectedNotes.remove( note )
elif mode == SELECTNOTES.EXCLUSIVE:
for note in self.noteViews:
if note in which:
if note.setSelected( True ):
self.selectedNotes.insert( 0, note )
else:
if note.setSelected( False ):
self.selectedNotes.remove( note )
def updateDragLimits( self, dragLimits ):
if not len(self.selectedNotes): return # no selected notes here
leftBound = 0
maxRightBound = round( self.beatsPerPageAdjustment.value, 0 ) * Constants.TICKS_PER_BEAT
last = len(self.noteViews)-1
for i in range(0,last):
if not self.noteViews[i].getSelected():
leftBound = self.noteViews[i].getEndTick()
else:
if not self.noteViews[i+1].getSelected():
rightBound = min( self.noteViews[i+1].getStartTick(), maxRightBound )
widthBound = rightBound
else:
rightBound = maxRightBound
widthBound = min( self.noteViews[i+1].getStartTick(), maxRightBound )
self.noteViews[i].updateDragLimits( dragLimits, leftBound, rightBound, widthBound )
if self.noteViews[last].getSelected():
self.noteViews[last].updateDragLimits( dragLimits, leftBound, maxRightBound, maxRightBound )
def getNotesByBar( self, beatCount, startX, stopX ):
beatWidth = self.getBeatLineSpacing( beatCount )
beatStart = self.getBeatLineStart()
while beatStart+beatWidth <= startX:
beatStart += beatWidth
beatStop = beatStart + beatWidth
while beatStop+beatWidth < stopX:
beatStop += beatWidth
notes = []
for note in self.noteViews:
if note.checkX( beatStart, beatStop ):
notes.insert(0,note)
return notes
#-----------------------------------
# event methods
#-----------------------------------
def handleButtonPress( self, emitter, event ):
eX = event.x - self.posOffset[0]
eY = event.y - self.posOffset[1]
if eX < 0 or eX > self.width or eY < 0 or eY > self.height:
return False
for note in self.noteViews:
handled = note.handleButtonPress( emitter, event )
if handled: return handled
return False
def handleButtonRelease( self, emitter, event, buttonPressCount ):
eX = event.x - self.posOffset[0]
eY = event.y - self.posOffset[1]
if eX < 0 or eX > self.width or eY < 0 or eY > self.height:
return False
if event.button == 1:
if buttonPressCount == 1: emitter.toggleTrack( self.trackID, False )
else: emitter.toggleTrack( self.trackID, True )
return True
def handleMarqueeSelect( self, emitter, start, stop ):
intersectionY = [ max(start[1],self.posOffset[1]), min(stop[1],self.posOffset[1]+self.height) ]
if intersectionY[0] > intersectionY[1]:
return False
intersectionX = [ max(start[0],self.posOffset[0]), min(stop[0],self.posOffset[0]+self.width) ]
if intersectionX[0] > intersectionX[1]:
return False
hits = []
for note in self.noteViews:
hit = note.handleMarqueeSelect( emitter,
[ intersectionX[0], intersectionY[0] ], \
[ intersectionX[1], intersectionY[1] ] )
if hit: hits.insert(0,note)
if len(hits): return hits
return False
def noteDrag( self, emitter, dx, dy, dw ):
for note in self.selectedNotes:
note.noteDrag( emitter, dx, dy, dw )
def doneNoteDrag( self, emitter ):
for note in self.selectedNotes:
note.doneNoteDrag( emitter )
#-----------------------------------
# drawing methods
#-----------------------------------
def getBorderWidth( self ): #should return a constant value, otherwise we have to recalculate sizing and positioning everyframe!
return GUIConstants.BORDER_SIZE
def getBeatLineWidth( self ):
return GUIConstants.BEAT_LINE_SIZE #should return a constant value, otherwise we have to recalculate sizing and positioning everyframe!
def getBeatLineSpacing( self, beatCount ):
return (self.width - 2*self.getBorderWidth() + self.getBeatLineWidth())/beatCount
def getBeatLineStart( self ):
return self.posOffset[0] + self.getBorderWidth() - self.getBeatLineWidth()/2.0
def setPositionOffset( self, offset ):
self.posOffset = offset
lineW = self.getBorderWidth()
for note in self.noteViews:
note.setPositionOffset( ( self.posOffset[0]+lineW, self.posOffset[1]+lineW ) )
def draw( self, context, beatCount, selected ):
#if selected: lineW = GUIConstants.SELECTED_BORDER_SIZE
#else: lineW = GUIConstants.BORDER_SIZE
lineW = self.getBorderWidth()
context.set_line_width( lineW )
lineWDIV2 = lineW/2.0
context.move_to( self.posOffset[0] + lineWDIV2, self.posOffset[1] + 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()
#draw the background
context.set_source_rgb( 0.75, 0.75, 0.75 )
context.fill_preserve()
#draw the border
if selected: context.set_source_rgb( 1, 1, 1 )
else: context.set_source_rgb( 0, 0, 0 )
context.stroke()
#draw the beat lines
beatLineWidth = self.getBeatLineWidth()
context.set_line_width( beatLineWidth )
beatWidth = self.getBeatLineSpacing( beatCount )
beatStart = self.getBeatLineStart()
context.set_source_rgb( 0, 0, 0 )
for i in range(1,beatCount):
context.move_to( beatStart + i*beatWidth, self.posOffset[1] + lineW )
context.rel_line_to( 0, self.height - 2*lineW )
context.stroke()
#draw the notes
for note in self.noteViews:
note.draw( context )
#-----------------------------------
# sizing methods
#-----------------------------------
def updateNoteTransforms( self ):
width = self.width - 2*self.getBorderWidth()
height = self.height - 2*self.getBorderWidth() # adjust for actual note drawing area
for noteView in self.noteViews:
noteView.updateTransform( (width, height) )
def set_size_request( self, width, height ):
self.width = width
self.height = height
self.updateNoteTransforms()
#unused for now...
class NoteViewPool:
def __init__( self, parentContainer, beatsPerPageAdjustment ):
self.parentContainer = parentContainer
self.beatsPerPageAdjustment = beatsPerPageAdjustment
self.pool = []
def addNoteView( self, noteView ):
#noteView.hide()
self.pool.append( noteView )
def addNoteViews( self, noteViews ):
for noteView in noteViews:
self.addNoteView( noteView )
def getNoteView( self ):
poolSize = len( pool )
if poolSize != 0:
return pool.pop( poolSize )
return NoteView( None, self.parentContainer, self.beatsPerPageAdjustment )
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