abhijangda
Padawan
Hello everyone, I have started creating a Download Manager for Linux using Python with PyQt4 as GUI toolkit and PycURL as library for downloading files. My problem is that whenever I start a download GUI stops. It works in the background and just keeps on downloading but no response from GUI.
Code is Here.
main.py
downloadclass.py
Can anyone solve my problem or atleast give me a hint??
Code is Here.
main.py
Code:
from PyQt4 import QtCore,QtGui
import downloadclass,winaddnew,treeitem
import sys
class Downloader(QtGui.QMainWindow):
def __init__(self,parent=None):
QtGui.QMainWindow.__init__(self,parent)
self.setWindowTitle("Download")
self.setGeometry(10,10,600,400)
self.tablewidget = QtGui.QTableWidget(self)
self.setCentralWidget(self.tablewidget)
self.tablewidget.setColumnCount(6)
self.tablewidget.setHorizontalHeaderLabels(['File Name','Url','Size','Downloaded','Time Remaining','Speed','Status'])
self.tablewidget.setRowCount(1)
self.tablewidgetrowitemarray = []
self.tablewidget.horizontalHeader().setClickable(False)
self.tablewidget.cellClicked.connect(self.cellclicked)
menubar = self.menuBar()
newdownload = QtGui.QAction("Create a new download",self)
start = QtGui.QAction("Start",self)
stop = QtGui.QAction("Stop",self)
pauseresume = QtGui.QAction("Pause/Resume",self)
startall = QtGui.QAction("Start All",self)
stopall = QtGui.QAction("Stop All",self)
pauseresumeall = QtGui.QAction("Pause/Resume All",self)
restart = QtGui.QAction("Restart Download",self)
downloadmenu = menubar.addMenu("Download")
downloadmenu.addAction(newdownload)
downloadmenu.addAction(start)
downloadmenu.addAction(stop)
downloadmenu.addAction(pauseresume)
downloadmenu.addAction(startall)
downloadmenu.addAction(stopall)
downloadmenu.addAction(pauseresumeall)
downloadmenu.addAction(restart)
self.addwin = winaddnew.addnewwin()
self.url = ''
self.path = ''
self.filename = ''
self.rowselected = 0
self.downloaditem = treeitem.downloaditem
self.dwlclass = downloadclass.downloadfile
self.downloaditemarray = []
self.connect(newdownload,QtCore.SIGNAL('triggered()'),self.funcshowaddwin)
self.connect(start,QtCore.SIGNAL('triggered()'),self.funcstart)
self.Timer = QtCore.QTimer(self)
self.Timer.setInterval(200)
self.connect(self.Timer, QtCore.SIGNAL('timeout()'),self.functimer)
def cellclicked(self,row,col):
self.tablewidget.selectRow(row)
self.rowselected = row
def funcshowaddwin(self):
self.Timer.start()
self.addwin.show()
def functimer(self):
self.url,self.path = self.addwin.funcpass()
if self.url != '':
if self.path !='':
self.Timer.stop()
self.adddownload()
def adddownload(self):
self.downloaditemarray.append(self.downloaditem(self.getfilename(self.url),self.url,0,'Downloading'))
self.createrow(self.downloaditemarray[len(self.downloaditemarray)-1])
def createrow(self,downloaditem):
for i in range(0,6):
self.tablewidgetrowitemarray.append(QtGui.QTableWidgetItem(0))
self.tablewidgetrowitemarray[i].setFlags(QtCore.Qt.ItemIsSelectable)
self.tablewidget.setItem(0,i,self.tablewidgetrowitemarray[i])
self.tablewidgetrowitemarray[0].setText(downloaditem.filename)
self.tablewidgetrowitemarray[1].setText(downloaditem.url)
self.tablewidgetrowitemarray[2].setText(str(downloaditem.size))
self.tablewidgetrowitemarray[3].setText("")
self.tablewidgetrowitemarray[4].setText("")
self.tablewidgetrowitemarray[5].setText("")
#self.tablewidgetrowitemarray[6].setText(downloaditem.status)
def getfilename(self,url):
lst = url.split('/')
return lst[len(lst)-1]
def funcstart(self):
d = self.dwlclass(self.path,str(self.tablewidget.item(self.rowselected,1).text()),self.tablewidget.item(self.rowselected,2).text())
self.tablewidgetrowitemarray[2].setText(str(d.size))
d.start()
app = QtGui.QApplication(sys.argv)
d = Downloader()
d.show()
app.exec_()downloadclass.py
Code:
import pycurl,os
class downloadfile(object):
def __init__(self,path,url,downloaded):
self.url = url
self.path = path
self.downloaded = downloaded
self.size = 0
self.bytesdownloaded = 0
self.initial = 0
self.final = 0
self.curl = pycurl.Curl()
self.curl.setopt(pycurl.URL,self.url)
def progress(self,download_t,download_d,upload_t,upload_d):
self.initial = download_d
self.size = download_t
self.bytesdownloaded = download_d
self.speed = self.final - self.initial
self.final = download_d
def start(self):
f = open(self.path,"wb")
self.curl.setopt(pycurl.WRITEDATA,f)
self.curl.setopt(pycurl.NOPROGRESS,0)
self.curl.setopt(pycurl.PROGRESSFUNCTION,self.progress)
self.curl.perform()
def resume(self):
f = open(self.path,"ab")
self.curl.setopt(pycurl.RESUME_FROM,os.path.getsize(self.path))
self.curl.setopt(self.pycurl.WRITEDATA,f)
self.curl.setopt(pycurl.NOPROGRESS,0)
self.curl.setopt(pycurl.PROGRESSFUNCTION,self.progress)
self.curl.perform()Can anyone solve my problem or atleast give me a hint??
