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|
"""
File:
JetUtils.py
Contents and purpose:
Utilities used throughout JetCreator
Copyright (c) 2008 Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
from __future__ import with_statement
import wx
import os
import copy
import ConfigParser
import logging
import time
import tempfile
from JetDefs import *
from JetDebug import *
from midifile import TimeBase, trackGrid
class JetCutCopy(object):
""" Handles cut/copy/pasting of events and segments """
def __init__ (self, objType, objSave, currentSegmentName):
self.objType = objType
self.objSave = copy.deepcopy(objSave)
self.currentSegmentName = currentSegmentName
def GetObj(self, objList):
""" Gets an object """
objSave = copy.deepcopy(self.objSave)
if self.objType == JetDefs.MAIN_SEGLIST:
oldName = objSave.segname
i = len(oldName) - 1
while i > 0:
if not oldName[i].isdigit():
break
i = i - 1
oldName = oldName[0:i+1]
i = 1
while True:
newName = oldName + str(i)
if self.UniqueSegName(newName, objList):
break
i = i + 1
objSave.segname = newName
elif self.objType == JetDefs.MAIN_EVENTLIST:
oldName = objSave.event_name
i = len(oldName) - 1
while i > 0:
if not oldName[i].isdigit():
break
i = i - 1
oldName = oldName[0:i+1]
i = 1
while True:
newName = oldName + str(i)
if self.UniqueEventName(newName, objList):
break
i = i + 1
objSave.event_name = newName
return objSave
def UniqueSegName(self, nameVal, seglist):
for nm in seglist:
if nm.segname == nameVal:
return False
return True
def UniqueEventName(self, nameVal, eventlist):
for nm in eventlist:
if nm.event_name == nameVal:
return False
return True
class JetState(object):
""" Saves the state for cut/copy/paste """
def __init__ (self, jet_file, currentSegmentIndex, currentEventIndex):
self.jet_file = copy.deepcopy(jet_file)
self.currentSegmentIndex = currentSegmentIndex
self.currentEventIndex = currentEventIndex
def Queue (jet, queueSeg):
""" Queues a segment """
jet.QueueSegment(queueSeg.userID, queueSeg.seg_num, queueSeg.dls_num, queueSeg.repeat, queueSeg.transpose, queueSeg.mute_flags)
class QueueSeg(object):
""" Object representing a segment """
def __init__ (self, name, userID, seg_num, dls_num=-1, repeat=0, transpose=0, mute_flags=0, status=''):
self.name = name
self.userID = userID
self.seg_num = seg_num
self.dls_num = dls_num
self.repeat = repeat
self.transpose = transpose
self.mute_flags = mute_flags
self.status = status
#DumpQueueSeg(self)
def FindDlsNum(libraries, dlsfile):
""" Looks for a dls file in the library list """
for index, library in enumerate(libraries):
if library == dlsfile:
return index
return -1
def SetRowSelection(list, row, state):
""" Sets the selection status of a list row """
if state:
list.SetItemState(row, wx.LIST_STATE_SELECTED, wx.LIST_STATE_SELECTED)
else:
list.SetItemState(row, ~wx.LIST_STATE_SELECTED, wx.LIST_STATE_SELECTED)
def ClearRowSelections(list):
""" Clears the list rows selection status """
index = list.GetFirstSelected()
while index != -1:
SetRowSelection(list, index, False)
index = list.GetNextSelected(index)
def getColumnText(list, index, col):
""" Sets the text of a column """
item = list.GetItem(index, col)
return item.GetText()
def getColumnValue(list, index, col):
""" Gets the text of a column """
item = list.GetItem(index, col)
v = str(item.GetText())
if len(v) > 0:
return int(item.GetText())
else:
return 0
def StrNoneChk(fld):
""" Returns a blank string if none """
if fld is None:
return ""
return str(fld)
def ConvertStrTimeToTuple(s):
""" Converts a string time to a tuple """
try:
measures, beats, ticks = s.split(':',3)
return (int(measures), int(beats), int(ticks))
except:
return JetDefs.MBT_DEFAULT
def FileRelativePath(target, base=os.curdir):
""" Returns relative file path """
if not os.path.exists(target):
return target
if not os.path.isdir(base):
return target
base_list = (os.path.abspath(base)).split(os.sep)
target_list = (os.path.abspath(target)).split(os.sep)
if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]:
return target
for i in range(min(len(base_list), len(target_list))):
if base_list[i] <> target_list[i]: break
else:
i+=1
rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:]
return os.path.join(*rel_list)
def FileFixPath(fileSpec):
""" Tweaks slashes """
return fileSpec.replace("\\", "/")
def FileKillClean(fileName):
""" Deletes a file skipping errors """
try:
os.remove(fileName)
except:
pass
def FileJustRoot(fileName):
""" Gets just the root of the file name """
try:
return os.path.splitext(fileName)[0]
except:
return ""
def FileJustName(fileName):
""" Gets just the filename, without the path """
try:
return os.path.split(fileName)[1]
except:
return ""
def FileJustPath(fileName):
""" Gets just the path, without the file name """
try:
return os.path.split(fileName)[0]
except:
return ""
def FileJustExt(fileName):
""" Gets just the extension of the file """
try:
ext = os.path.splitext(fileName)[1]
return ext.upper()
except:
return ""
def FileDateTime(fileName):
""" Gets the date/time of a file """
try:
filetime = time.ctime(os.path.getmtime(fileName))
return filetime
except:
return ""
def FileExists(fileName):
""" Checks if a file exists """
try:
return os.path.exists(fileName)
except:
return False
def IniSetValue(configFile, section, option, value):
""" Sets the value of a config file field """
config = ConfigParser.ConfigParser()
config.read(configFile)
if not config.has_section(section):
config.add_section(section)
config.set(section, option, value)
cfgfile = open(configFile,'w')
config.write(cfgfile)
cfgfile.close()
def IniGetValue(configFile, section, option, retType='str', default=''):
""" Gets the value of a config file field """
ret = default
config = ConfigParser.ConfigParser()
config.read(configFile)
if config.has_section(section):
if config.has_option(section, option):
ret = config.get(section, option)
if retType =='int':
try:
ret = int(ret)
except:
ret = 0
elif retType == 'float':
try:
ret = float(ret)
except:
ret = 0
elif retType == 'bool':
try:
if ret[0].upper()=='T':
ret = True
else:
ret = False
except:
ret = False
elif retType == 'list':
try:
ret = eval(ret)
except:
ret = []
return ret
def GetRecentJetFiles():
""" Builds a list of recent jet files """
fileList = []
config = ConfigParser.ConfigParser()
config.read(JetDefs.JETCREATOR_INI)
if config.has_section(JetDefs.RECENT_SECTION):
for count in range(0, 10):
sFile = "File" + str(count)
if config.has_option(JetDefs.RECENT_SECTION, sFile):
sFileName = config.get(JetDefs.RECENT_SECTION, sFile)
if FileExists(sFileName):
if sFileName != JetDefs.UNTITLED_FILE:
#fileList.append(FileRelativePath(config.get(JetDefs.RECENT_SECTION, sFile)))
fileList.append(config.get(JetDefs.RECENT_SECTION, sFile))
return fileList
def AppendRecentJetFile(jetFile):
""" Appends to a list of recent jet files """
addedFiles = []
fileList = GetRecentJetFiles()
config = ConfigParser.ConfigParser()
config.read(JetDefs.JETCREATOR_INI)
if config.has_section(JetDefs.RECENT_SECTION):
config.remove_section(JetDefs.RECENT_SECTION)
config.add_section(JetDefs.RECENT_SECTION)
config.set(JetDefs.RECENT_SECTION, "File0", jetFile)
addedFiles.append(jetFile)
count = 1
for file in fileList:
if file not in addedFiles:
sFile = "File" + str(count)
config.set(JetDefs.RECENT_SECTION, sFile, file)
addedFiles.append(file)
count += 1
FileKillClean(JetDefs.JETCREATOR_INI)
cfgfile = open(JetDefs.JETCREATOR_INI,'w')
config.write(cfgfile)
cfgfile.close()
def CompareMbt(mbt1, mbt2):
""" Compates to measure/beat/tick values """
try:
m1, b1, t1 = mbt1.split(':',3)
m2, b2, t2 = mbt2.split(':',3)
if int(m1) > int(m2):
return False
elif int(m1) == int(m2) and int(b1) > int(b2):
return False
elif int(b1) == int(b2) and int(t1) > int(t2):
return False
elif int(m1) == int(m2) and int(b1) == int(b2) and int(t1) == int(t2):
return False
else:
return True
except:
return False
def MbtVal(mbt):
""" Converts mbts to ticks """
if type(mbt).__name__=='str' or type(mbt).__name__=='unicode':
mbt1 = mbt
else:
mbt1 = "%d:%d:%d" % mbt
try:
return TimeBase().ConvertStrTimeToTicks(mbt1)
except:
return 0
def TicksToMbt(ticks):
""" Converts ticks to mbts """
return TimeBase().ConvertTicksToMBT(ticks)
def TicksToStrMbt(ticks):
""" Converts ticks to mbts """
return TimeBase().ConvertTicksToStr(ticks, '%02d:%02d:%02d')
def MbtDifference(mbt1, mbt2):
""" Returns difference between mbt values """
return TimeBase().MbtDifference(mbt1, mbt2)
def PlayMidiFile(midiFile, dlsFile=''):
""" Plays a midi file """
try:
e = __import__('eas')
if midiFile == '':
return
eas = e.EAS()
if dlsFile > '':
eas.LoadDLSCollection(dlsFile)
eas.StartWave()
audio_file = eas.OpenFile(midiFile)
audio_file.Prepare()
audio_file.Play()
audio_file.Close()
eas.StopWave()
eas.Shutdown()
except:
return
def SegmentOutputFile(segName, configFile):
""" Computes a segment output file """
configPath = FileJustPath(configFile) + "/"
segOutput = configPath + "Seg_" + segName + ".mid"
return segOutput
def ComputeMuteFlags(jet_file, segName):
""" Computes mute flags """
muteFlag = 0
for jet_event in jet_file.GetEvents(segName):
muteFlag = SetMute(jet_event.track_num, muteFlag)
return muteFlag
def ComputeMuteFlagsFromList1(list):
""" Computes mute flags from a list """
muteFlag = 0
num = list.GetItemCount()
for iRow in range(num):
track_num = list.GetTrackNumber(iRow)
if list.IsChecked(iRow):
muteFlag = SetMute(track_num, muteFlag)
else:
muteFlag = ClearMute(track_num, muteFlag)
return muteFlag
def ComputeMuteFlagsFromList(list):
""" Computes mute flags from a list """
muteFlags = 0
num = list.GetItemCount()
for iRow in range(num):
track_num = list.GetTrackNumber(iRow)
if list.IsChecked(iRow):
muteFlags = SetMute(track_num, muteFlags)
return muteFlags
def SetMuteFlag(track, muteFlag, mute):
""" Sets a mute flag """
if mute:
SetMute(track, muteFlag)
else:
ClearMute(track, muteFlag)
def SetMute(track, muteFlag):
""" Sets a mute flag """
try:
muteFlag |= 1 << (track)
return muteFlag
except:
#bad argument
return muteFlag
def ClearMute(track, muteFlag):
""" Clears a mute flag """
try:
muteFlag &= ~(1 << (track))
return muteFlag;
except:
#bad argument
return muteFlag
def GetMute(track, muteFlag):
""" Get a mute flag """
try:
if (muteFlag & ( 1 << (track))) == 0:
return False
else:
return True
except:
#bad argument
return False
def InfoMsg(msgTitle, msgText):
""" Display a simple informational message """
dlg = wx.MessageDialog(None,
message=msgText,
caption=msgTitle,
style=wx.OK|wx.ICON_INFORMATION
)
dlg.ShowModal()
dlg.Destroy()
def SendEvent (mycontrol, evt):
""" Sends an event """
cmd = wx.CommandEvent(evt)
cmd.SetEventObject(mycontrol)
cmd.SetId(mycontrol.GetId())
mycontrol.GetEventHandler().ProcessEvent(cmd)
def GetJetHelpText(dlgName, fld):
""" Gets the jet help text file """
return IniGetValue(JetDefs.JETCREATOR_HLP, dlgName, fld)
def ExportJetArchive(fileName, jetConfigFile, jetFile):
""" Exports all files into a zip archive file """
z = __import__('zipfile')
zip = z.ZipFile(fileName, 'w')
#zip the original .JET file
if FileExists(jetFile.config.filename):
zip.write(jetFile.config.filename, FileJustName(jetFile.config.filename))
#make copy of object so we can modify it
jet_file = copy.deepcopy(jetFile)
#zip the files, without paths
for segment in jet_file.GetSegments():
if FileExists(segment.filename):
if not FileJustName(segment.filename) in zip.namelist():
zip.write(segment.filename, FileJustName(segment.filename))
if FileExists(segment.output):
if not FileJustName(segment.output) in zip.namelist():
zip.write(segment.output, FileJustName(segment.output))
#zip the library files
for library in jet_file.GetLibraries():
if FileExists(library):
if not FileJustName(library) in zip.namelist():
zip.write(library, FileJustName(library))
#remove the paths on filenames
for segment in jet_file.GetSegments():
segment.filename = FileJustName(segment.filename)
segment.dlsfile = FileJustName(segment.dlsfile)
segment.output = FileJustName(segment.output)
#remove paths
for index, library in enumerate(jet_file.libraries):
jet_file.libraries[index] = FileJustName(library)
#create temporary .JTC file so we can modify paths to files
tmpConfigFile = JetDefs.TEMP_JET_CONFIG_FILE
FileKillClean(tmpConfigFile)
#save the file
jet_file.SaveJetConfig(tmpConfigFile)
#zip it and rename it back to original name without path
zip.write(tmpConfigFile, FileJustName(jetConfigFile))
#create a flag file so we know this is a jet archive
zip.write(tmpConfigFile, "JetArchive")
zip.close()
FileKillClean(tmpConfigFile)
def ValidateConfig(test_jet_file):
""" Validates the contents of a config file """
dImp = __import__('JetDialogs')
errors = []
fatalError = False
for segment in test_jet_file.segments:
logging.debug(segment.filename)
if segment.filename is not None and len(segment.filename) > 0 and not FileExists(segment.filename):
errors.append(("Segment MIDI file not found", segment.filename))
fatalError = True
if segment.dlsfile is not None and len(segment.dlsfile) > 0 and not FileExists(segment.dlsfile):
errors.append(("Segment DLS file not found; removing from config", segment.dlsfile))
segment.dlsfile = ""
logging.debug(test_jet_file.config.filename)
if len(errors) == 0:
return True
else:
dlg = dImp.JetErrors("Jet Definition File Errors")
dlg.SetErrors(errors)
result = dlg.ShowModal()
dlg.Destroy()
if fatalError:
return False
else:
return True
def release_getLogger(name):
""" passing original handler with debug() method replaced to empty function """
def dummy(*k, **kw):
pass
global __orig_getLogger
log = __orig_getLogger(name)
setattr(log, 'debug', dummy)
setattr(log, 'info', dummy)
setattr(log, 'error', dummy)
setattr(log, 'critical', dummy)
return log
def install_release_loggers():
""" Save original handler, installs newer one """
global __orig_getLogger
__orig_getLogger = logging.getLogger
setattr(logging, 'getLogger', release_getLogger)
def restore_getLogger():
""" Restores original handler """
global __orig_getLogger
if __orig_getLogger:
setattr(logging, 'getLogger', __orig_getLogger)
def GetMidiFileLength(midiFile):
""" Gets the length of a midi file via eas """
e = __import__('eas')
if not FileExists(midiFile):
return 0
eas = e.EAS()
audio_file = eas.OpenFile(midiFile)
audio_file.Prepare()
midiLength = eas.audio_streams[0].ParseMetaData()
audio_file.Close()
eas.Shutdown()
return midiLength
def GetMidiInfo(midiFile):
""" Gets midi file info """
m = __import__('midifile')
md = m.GetMidiInfo(midiFile)
return md
def PrintMidiInfo(midiFile):
""" Prints info about a midi file """
mi = GetMidiInfo(midiFile)
if mi.err == 0:
print("ppqn: " + str(mi.ppqn))
print("beats_per_measure: " + str(mi.beats_per_measure))
print("ending mbt: " + str(mi.endMbt))
print("ending mbt str: " + mi.endMbtStr)
print("maxMeasures: " + str(mi.maxMeasures))
print("maxBeats: " + str(mi.maxBeats))
print("maxTicks: " + str(mi.maxTicks))
print("maxTracks: " + str(mi.maxTracks))
print("totalTicks: " + str(mi.totalTicks))
for track in mi.trackList:
print(track)
else:
print("Error opening")
def MidiSegInfo(segment):
""" Midi file info saved in config file for speed """
class segInfo:
iMsPerTick = 0
bpm = 4
ppqn = 480
total_ticks = 0
iLengthInMs = 0
iTracks = 0
trackList = []
ver = "1.5"
ret = segInfo()
savedVer = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "Ver")
savedDateTime = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "DateTime")
dateTime = FileDateTime(segment.filename)
if ver != savedVer or dateTime != savedDateTime:
mi = GetMidiInfo(segment.filename)
if mi.err == 0:
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "Ver", ver)
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "DateTime", str(dateTime))
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "PPQN", str(mi.ppqn))
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "BPM", str(mi.beats_per_measure))
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "totalTicks", str(mi.totalTicks))
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "maxTracks", str(mi.maxTracks))
iLengthInMs = GetMidiFileLength(segment.filename) * 1000
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "LengthInMs", str(iLengthInMs))
if iLengthInMs > 0:
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "MsPerTick", str(iLengthInMs / mi.totalTicks))
#have to write out the tracklist in format that can be saved in INI file
tl = []
for track in mi.trackList:
tl.append((track.track, track.channel, track.name))
IniSetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "Tracks", tl)
trackList = []
tl = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "Tracks", 'list', [])
for t in tl:
trackList.append(trackGrid(t[0], t[1], t[2],False))
iTracks = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "maxTracks", 'int', 0)
iMsPerTick = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "MsPerTick", 'float', 0)
bpm = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "BPM", 'int', 0)
ppqn = IniGetValue(JetDefs.JETMIDIFILES_INI, segment.filename, "PPQN", 'int', 480)
if iMsPerTick == 0 or bpm == 0 or ppqn == 0:
return ret
tb = TimeBase(ppqn, bpm)
total_ticks = tb.ConvertStrTimeToTicks(segment.length)
if total_ticks == 0:
total_ticks = tb.MbtDifference(tb.ConvertStrTimeToTuple(segment.start), tb.ConvertStrTimeToTuple(segment.end))
if total_ticks == 0:
return ret
ret.iTracks = iTracks
ret.iMsPerTick = iMsPerTick
ret.bpm = bpm
ret.ppqn = ppqn
ret.total_ticks = total_ticks
ret.iLengthInMs = total_ticks * iMsPerTick
ret.trackList = trackList
return ret
def TimeStr(ms):
""" Returns a time string """
s=ms/1000
m,s=divmod(s,60)
h,m=divmod(m,60)
d,h=divmod(h,24)
if m > 0:
return "%d Min %d Sec" % (m,s)
else:
return "%d Seconds" % (s)
def mbtFct(mbt, mod):
""" Converts times """
if type(mbt).__name__=='str' or type(mbt).__name__=='unicode':
mbt = ConvertStrTimeToTuple(mbt)
retType = 'str'
else:
retType = 'int'
m = mbt[0]+mod
b = mbt[1]+mod
t = mbt[2]
if m < 0:
m = 0
if b < 0:
b = 0
if b > 4:
b = 4
if t < 0:
t = 0
if retType == 'str':
return "%d:%d:%d" % (m, b, t)
else:
return (m, b, t)
def OsWindows():
""" Tells us whether windows or os x """
if os.name == 'nt':
return True ;
else:
return False ;
def MacOffset():
""" Mac screen coordinates funky on some controls so we finagle a few pixels """
if not OsWindows():
return 3
else:
return 0
def SafeJetShutdown(lock, jet):
""" Makes sure we do the jet shutdown properly """
with lock:
#MAKE SURE WE CLEANUP
#try: jet.Clear_Queue()
#except: pass
try: jet.eas.StopWave()
except: pass
try: jet.Shutdown()
except: pass
jet = None
def CreateTempJetFile(org_jet_file):
""" Creates temporary jet file for playback testing """
dirname = JetDefs.TEMP_JET_DIR
if not os.path.isdir(dirname):
os.mkdir(dirname)
tmpConfigFile = dirname + FileJustName(org_jet_file.config_file)
FileKillClean(tmpConfigFile)
jet_file = copy.deepcopy(org_jet_file)
for tmp in jet_file.segments:
tmp.output = dirname + FileJustName(tmp.output)
jet_file.config_file = tmpConfigFile
jet_file.config.filename = dirname + FileJustName(jet_file.config.filename)
FileKillClean(jet_file.config.filename)
jet_file.SaveJetConfig(tmpConfigFile)
jet_file.WriteJetFileFromConfig(tmpConfigFile)
return jet_file
def CleanupTempJetFile(jet_file):
""" Cleans up temporary files """
FileKillClean(jet_file.config.filename)
FileKillClean(jet_file.config_file)
for tmp in jet_file.segments:
FileKillClean(tmp.output)
def GetNow():
return time.asctime()
if __name__ == '__main__':
""" Tests functions """
pass
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