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#!/usr/bin/python
# -*- coding: utf-8 -*-
# MusE external midi processing script
# By: Robert Jonsson 2009
# RemoveShortEvents
import sys,time
from PyQt4 import QtGui, QtCore
class RemoveShortEvents(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setWindowTitle('RemoveShortEvents')
title = QtGui.QLabel('Remove events shorter than:')
self.timeEdit = QtGui.QComboBox()
self.timeEdit.addItem('1/1',1)
self.timeEdit.addItem('1/2',2)
self.timeEdit.addItem('1/4',4)
self.timeEdit.addItem('1/8',8)
self.timeEdit.addItem('1/16',16)
self.timeEdit.addItem('1/32',32)
self.timeEdit.setCurrentIndex(3)
button = QtGui.QPushButton("Execute")
self.connect(button, QtCore.SIGNAL('clicked()'), self.execute)
grid = QtGui.QGridLayout()
grid.setSpacing(3)
grid.addWidget(title, 1, 0)
grid.addWidget(self.timeEdit, 1, 1)
grid.addWidget(button, 2, 1)
self.setLayout(grid)
self.resize(200, 100)
button.setFocus()
def execute(self):
testFile = file(sys.argv[1],"r")
inputEvents = testFile.readlines()
testFile.close()
beatDiv = int(self.timeEdit.itemData(self.timeEdit.currentIndex()).toInt()[0])
minSize=0 # fill in when we get the beat size value
outputEvents=[]
#get beat length to calculate minimum length of event
for line in inputEvents:
if line.startswith('BEATLEN'):
tag,tick = line.split(' ')
minSize=int(tick)/beatDiv
break
#loop through events
for line in inputEvents:
if line.startswith('NOTE'):
tag,tick,note,length,velocity = line.split(' ')
if int(length) > minSize: # only append long enough events
outputEvents.append(line)
else:
outputEvents.append(line)
testFile = file(sys.argv[1],"w")
testFile.writelines(outputEvents)
testFile.close()
quit()
app = QtGui.QApplication(sys.argv)
qb = RemoveShortEvents()
qb.show()
sys.exit(app.exec_())
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