QProgressDialog
由用於此目的,並且通常經由QThread
調用。這裏有一個(混亂的)基本例子來說明這可以如何工作(沒有任何線程)。如果您從另一個窗口調用此對話框,只需將parent
設置爲調用窗口,並且您可以通過調用self.parent.some_variable
來讀取此對話框中的屬性。
EDITED正常工作;)。
from PyQt4 import QtCore, QtGui
from time import sleep
import sys
class ProgressBarWidget(QtGui.QProgressDialog):
def __init__(self, parent=None, app=None):
super(ProgressBarWidget, self).__init__(parent)
self.app=app
self._allow_close = True
layout = QtGui.QVBoxLayout(self)
# Create a progress bar and a button and add them to the main layout
self.progressBar = QtGui.QProgressBar(self)
self.progressBar.setRange(0,100)
layout.addWidget(self.progressBar)
self.button = QtGui.QPushButton("Start", self)
layout.addWidget(self.button)
self.button.clicked.connect(self.onStart)
self.upload_count = 10
def onStart(self):
self.progressBar.setValue(0)
self.button.setText("Uploading...")
self.run()
def makeProgress(self, current_num, total_num, message = ''):
if total_num == current_num:
self.onFinished()
elif current_num == 0:
self.progressBar.setValue(0)
else:
multiplier = int(float(float(100)/float(total_num)))
c_times_m = current_num * multiplier
for i in xrange(c_times_m - int(self.progressBar.value())):
new_val = int(self.progressBar.value()) + 1
self.progressBar.setValue(new_val)
sleep(.01)
def onFinished(self):
# progress complete
self.progressBar.setRange(0,100)
for i in xrange(int(self.progressBar.value()),101):
self.progressBar.setValue(i)
self.button.setEnabled(True)
self.button.setText('Exit')
self.button.clicked.disconnect(self.onStart)
self.button.clicked.connect(self.close)
def run(self):
self._allow_close = False
self.button.setDisabled(True)
total = self.upload_count * 2
progress_meter = 0
downloaded = []
tests_to_upload = 10
for each in xrange(tests_to_upload):
sleep(0.15)
progress_meter += 1
self.makeProgress(progress_meter,total)
sleep(0.2)
progress_meter += 1
self.makeProgress(progress_meter, total)
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
window = ProgressBarWidget(app=app)
window.resize(640, 480)
window.show()
sys.exit(app.exec_())
A'以任何方式與GUI交互? (它是否會調用PyQt函數?) –
我在文件GUI.py中創建函數來調用'A'。然後我連接按鈕以使用該功能運行'A'。 我會寫這個函數來調用'A'。 –