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ukaef |
2010-12-09
, 13:45
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Posts: 52 |
Thanked: 41 times |
Joined on Sep 2010
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#1
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How can I recieve information about copying progress when using QFile.copy(...) ??? I use it to copy big files on n900, I want to make progress bar indicator. I found nothing on the web about this. Im writing in python but I think I could translate it from C++ If anyone knows the solution. Please help.
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2010-12-09
, 14:10
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Posts: 2,448 |
Thanked: 9,523 times |
Joined on Aug 2010
@ Wigan, UK
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#2
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Originally Posted by ukaef
QFile inherits QIODevice, which emits the signal bytesWritten(qint64). The documentation for QIODevice is here: http://www.riverbankcomputing.co.uk/...qiodevice.html
How can I recieve information about copying progress when using QFile.copy(...) ??? I use it to copy big files on n900, I want to make progress bar indicator. I found nothing on the web about this. Im writing in python but I think I could translate it from C++ If anyone knows the solution. Please help.
You can use a QProgressBar to display the progress, and use the setValue(int) method to update the progress by connecting that method to the bytesWritten(qint64) signal emitted by the QFile instance, e.g:
Code:
myFile = QFile("path/to/file")
self.progressBar = QProgressBar(self)
self.connect(myFile, SIGNAL("bytesWritten(qint64)"), self.updateProgress)
def updateProgress(self, progress):""" Updates the progress bar"""
self.progressBar.setValue(progress)
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'Men of high position are allowed, by a special act of grace, to accomodate their reasoning to the answer they need. Logic is only required in those of lesser rank.' - J K Galbraith
My website
GitHub
Last edited by marxian; 2010-12-09 at 14:12.
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2010-12-17
, 16:32
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Posts: 52 |
Thanked: 41 times |
Joined on Sep 2010
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#3
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Help! I cannot get this working... Anyone know what is wrong with my code?
No matter what i put into updateProgress it wont work. Its also strange that when I want to change text on QLabel widget BEFORE self.tempFile.copy it will be updated on screen AFTER copying. So I dont know how to indicate that file is copying. PRogressBar would be great, but I dont even know how to display any kind of message before copying. Anyone can help me with this?
Code:
class Win(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
(...)
self.ui=WinUi()
self.ui.setupUi(self)
def updateProgress(self, progress):
self.ui.progressBar.setValue(progress)
self.ui.label.setText("Please wait, storing file..."+progress)
(...)
def clickchoose(self):
(...)
def click(self, place):
foundone = 0
for root, dirs, files in os.walk('/home/user/MyDocs/tmp'):
for file in files:
foundone = 1
self.tempFile=QFile('/home/user/MyDocs/tmp/'+files[0])
self.connect(self.tempFile, SIGNAL("bytesWritten(qint64)"), self.updateProgress)
(...)
if fname[0]=="":
filechk=self.tempFile.copy(place+files[0])
else:
filechk=self.tempFile.copy(place+fname[0]+'.flv')
if filechk==0:
(...)