def __init__(self, mainEngine):
QtGui.QWidget.__init__(self, None)
StepWidget.__init__(self, mainEngine)
self.gui = Ui_downloading()
self.gui.setupUi(self)
self.mainEngine.ftpDownloader.connectGui(self)
QtCore.QObject.connect(self.gui.btnCheck, QtCore.SIGNAL('clicked()'),
self.validateFile)
class Widget(QtGui.QWidget, StepWidget):
heading = "Downloading Pardus"
downloaded = False
counter = 0
def __init__(self, mainEngine):
QtGui.QWidget.__init__(self, None)
StepWidget.__init__(self, mainEngine)
self.gui = Ui_downloading()
self.gui.setupUi(self)
self.mainEngine.ftpDownloader.connectGui(self)
QtCore.QObject.connect(self.gui.btnCheck, QtCore.SIGNAL('clicked()'),
self.validateFile)
def onEnter(self):
self.gui.progressBar.setValue(0)
self.gui.status.setText('Preparing to download...')
self.gui.speed.setText('N/A')
self.gui.completed.setText('N/A')
self.gui.ETA.setText('N/A')
self.gui.percentage.setText('N/A')
self.gui.version.setText(self.mainEngine.version.name)
self.downloaded = False
self.updateButtons()
mirror = self.mainEngine.ftpDownloader.mirror
if mirror:
self.mainEngine.ftpDownloader.startTransfer()
self.gui.mirror.setText('%s (%s)' %
(mirror.hostname, mirror.country))
else:
log.warning('Mirror not found on download stage.')
def slotStateChange(self, state):
statusText = ''
if state == 1:
statusText = 'Looking up hostname.'
elif state == 2:
statusText = 'An attempt to connect to the host is in progress.'
elif state == 3:
statusText = 'Connection to the host is done.'
elif state == 4:
if (self.mainEngine.ftpDownloader.downloading):
statusText = 'Downloading in progress.'
else:
statusText = 'Connection and login is done.'
if (statusText):
self.gui.status.setText(statusText)
def updateButtons(self):
if self.downloaded:
self.mainEngine.gui.btnNext.setEnabled(True)
self.gui.btnCheck.setVisible(True)
else:
self.mainEngine.gui.btnNext.setEnabled(False)
self.gui.btnCheck.setVisible(False)
def validateFile(self):
computed = self.mainEngine.md5sum.encryptFile(
self.mainEngine.ftpDownloader.filePath).lower()
original = self.mainEngine.version.md5sum.lower()
if computed == original:
title = 'Validated'
msg = 'Downloaded file is valid. You can proceed installation safely.'
method = QtGui.QMessageBox.information
else:
title = 'Invalid File'
msg = 'Downloaded file is INVALID. It is STRONGLY recommended not to continue installation. Please retry downloading.'
method = QtGui.QMessageBox.information
method(self, title, msg, QtGui.QMessageBox.Ok)
def slotProcessDone(self):
if self.mainEngine.ftpDownloader.errorMessage:
self.downloaded = False
msg = self.mainEngine.ftpDownloader.errorMessage
else:
self.downloaded = True
msg = 'Download completed!'
self.updateButtons()
self.gui.status.setText(str(msg))
self.gui.progressBar.setValue(100)
self.gui.speed.setText('N/A')
self.gui.completed.setText('Finished!')
self.gui.ETA.setText('N/A')
self.gui.percentage.setText('100%')
def slotStatsChange(self, percentageCompleted, downloadSpeed, ETA):
self.gui.speed.setText('%s/s' % humanReadableSize(downloadSpeed))
self.gui.progressBar.setValue(
int(math.floor(percentageCompleted / 100.0)))
self.gui.percentage.setText('%.2f %%' % (percentageCompleted / 100.0))
self.gui.ETA.setText(humanReadableTime(ETA))
def slotTransferProgress(self, transferredSize, totalSize):
self.counter += 1
if self.counter % 20 == 0:
self.gui.status.setText('Download in progress...')
self.gui.completed.setText('%s of %s' %
(humanReadableSize(transferredSize),
humanReadableSize(totalSize)))
self.counter = 0
def onRollback(self):
reply = QtGui.QMessageBox.warning(
self, 'Warning',
'Are you sure to cancel? If you go back, downloading will be cancelled and you will be have to start over again.',
QtGui.QMessageBox.Yes, QtGui.QMessageBox.Cancel)
if reply == QtGui.QMessageBox.Yes:
self.mainEngine.ftpDownloader = None
self.mainEngine.initFTP()
self.mainEngine.ftpDownloader.connectGui(self)
self.downloaded = True
self.updateButtons()
return True
else:
return False
def onSubmit(self):
if self.downloaded:
self.mainEngine.config.isoPath = self.mainEngine.ftpDownloader.filePath
return True
else:
QtGui.QMessageBox.error(
self, 'Error',
'ISO File is not downloaded or the downloaded file is corrupt. Try again.',
QtGui.QMessageBox.OK)
return False
def nextIndex(self):
return 8
