Created
December 21, 2017 21:14
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Python PyQt4 Downloader with progressbar
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# -*- coding: utf-8 -*- | |
from PyQt4 import QtCore, QtGui | |
from PyQt4.QtGui import * | |
from PyQt4.QtCore import * | |
from urllib2 import * | |
class DownloaderApp(QtGui.QMainWindow): | |
def __init__(self, parent = None): | |
super(DownloaderApp, self).__init__(parent) | |
self.setObjectName("download") | |
self.groupBox = QtGui.QGridLayout() | |
self.groupBox.setObjectName("groupBox") | |
self.resize(500, 150) | |
self.progressBar = QtGui.QProgressBar() | |
self.progressBar.setLayoutDirection(QtCore.Qt.LeftToRight) | |
self.progressBar.setProperty("value", 0) | |
self.progressBar.setObjectName("progressBar") | |
self.progressBar.setVisible(False) | |
self.progressBar.setStyleSheet(stylesheet(self)) | |
self.plainTextEdit = QtGui.QLineEdit() | |
self.plainTextEdit.setObjectName("plainTextEdit") | |
self.plainTextEdit.text()=='' | |
self.pushButton = QtGui.QPushButton() | |
self.pushButton.setCursor(QtGui.QCursor(QtCore.Qt.PointingHandCursor)) | |
self.pushButton.setObjectName("pushButton") | |
self.pushButton.setFixedWidth(130) | |
self.pushButton.setText("start Download") | |
self.label = QtGui.QLabel() | |
self.label.setObjectName("label") | |
self.label.setText("URL:") | |
self.statuslabel = QtGui.QLabel() | |
self.statuslabel.setText("status") | |
self.groupBox.addWidget(self.label, 0, 0 ) | |
self.groupBox.addWidget(self.plainTextEdit, 1, 0 , 1, 1) | |
self.groupBox.addWidget(self.pushButton, 2, 0) | |
self.groupBox.addWidget(self.progressBar, 3, 0, 1, 2) | |
self.groupBox.addWidget(self.statuslabel, 4, 0, 1, 1 , Qt.AlignBottom) | |
qw = QtGui.QWidget() | |
qw.setLayout(self.groupBox) | |
self.setCentralWidget(qw) | |
self.setWindowTitle("Downloader") | |
QtCore.QObject.connect(self.pushButton, QtCore.SIGNAL("clicked()"), self.startDownload) | |
QtCore.QObject.connect(self.pushButton, QtCore.SIGNAL("clicked()"), self.plainTextEdit.clear) | |
QtCore.QMetaObject.connectSlotsByName(self) | |
def startDownload(self): | |
if not self.plainTextEdit.text() or self.plainTextEdit.text()=='': | |
QMessageBox.information(myDownloader,"Warning","no link") | |
return | |
self.progressBar.setVisible(True) | |
QtGui.QApplication.processEvents(QtCore.QEventLoop.AllEvents) | |
enter=self.plainTextEdit.text() | |
url=urlopen(('%s')%(enter)) | |
html=url.info() | |
name = enter.split('/')[-1] | |
name = QDir.homePath() + "/Downloads/" + name | |
cl=html['Content-Length'] | |
f =open(name,'wb+') | |
fl=0 | |
self.fl=0 | |
while 1: | |
QtGui.QApplication.processEvents(QtCore.QEventLoop.AllEvents) | |
xr=url.read(1024) | |
fl+=len(xr) | |
self.progressBar.setValue(fl*100/int(cl)) | |
QtGui.qApp.processEvents() | |
f.write(xr) | |
if not xr:break | |
del xr | |
QtGui.QApplication.processEvents(QtCore.QEventLoop.AllEvents) | |
f.close() | |
QMessageBox.information(myDownloader,"Message","Download complete") | |
self.progressBar.setVisible(False) | |
return | |
def stylesheet(self): | |
return """ | |
QProgressBar { | |
border: 2px solid #D9D9D9; | |
border-radius: 5px; | |
text-align: center; | |
} | |
QProgressBar::chunk { | |
background-color: #05B8CC; | |
width: 20px; | |
} | |
""" | |
if __name__ == "__main__": | |
import sys | |
app = QtGui.QApplication(sys.argv) | |
myDownloader = DownloaderApp() | |
myDownloader.show() | |
sys.exit(app.exec_()) |
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