我的HMI由两个按钮组成:启动和停止,还有一个QStatusBar字段,用于将线程中的信息打印到GUI上。当我点击“开始”时,我会启动一个线程,可以使用停止按钮来中断该线程。 我想做的是在线程的某一点处打开一个弹出窗口,在线程暂停时给用户选择。
from PyQt4 import QtCore, QtGui
import sys
import os
import time
from PyQt4.QtGui import QApplication, QDialog, QListWidgetItem, QListWidget, QIcon
from test_bench_tool2 import Ui_MainWindow
from popup import Ui_popup
"""Class poppup window(continue/quit)"""
class MyPopup(QtGui.QDialog):
def __init__(self,type):
super(MyPopup, self).__init__()
self.res = 0
self.type=type
self.ui = Ui_popup()
self.ui.setupUi(self)
QtCore.QObject.connect(self.ui.Quit,QtCore.SIGNAL("clicked()"),self.showDialogstop)
QtCore.QObject.connect(self.ui.Continue,QtCore.SIGNAL("clicked()"),self.showDialogcontinue)
def showDialogcontinue(self):
self.res=1
self.close()
def showDialogstop(self):
self.res=0
self.close()
class MyThread(QtCore.QThread):
Statuschanged = QtCore.pyqtSignal(str)
popupmodechanged = QtCore.pyqtSignal(str)
def __init__(self, parent=None):
super(MyThread, self).__init__(parent=parent)
self.Status_auto = ''
self.dialog = MyPopup('toto')
self.Status_auto +=''
self.popup=''
self.answer=''
def run(self):
result = self.get_result()
def get_result(self, ):
empty_result = []
self.popup='Vn'
self.popupmodechanged.emit((self.popup))
self.Status_auto +='\n\nMeasures finished!!'
self.Statuschanged.emit((self.Status_auto))
results=[]
#do things to calculate results
return(results)
class Main(QtGui.QDialog):
def __init__(self):
QtGui.QMainWindow.__init__(self)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
# Connect the Buttons
QtCore.QObject.connect(self.ui.Start,QtCore.SIGNAL("clicked()"),self.Start)
QtCore.QObject.connect(self.ui.Stop,QtCore.SIGNAL("clicked()"),self.Stop)
self.__thread = MyThread(self)
self.__thread.Statuschanged.connect(self.ui.report_auto.setText)
self.__thread.popupmodechanged.connect(self.open_popup)
def open_popup(self):
self.__thread.dialog.__init__(self.__thread.dialog.type)
self.__thread.dialog.exec_()
def Start(self):
global tableRx, tableTx
self.ui.report_auto.setText('test in process...')
self.__thread.start()
def Stop(self):
self.ui.report_auto.setText('test canceled')
if self.__thread.isRunning():
self.__thread.terminate()
def main():
app = QtGui.QApplication(sys.argv)
window = Main()
window.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
我该如何获取弹出窗口中的选择结果以继续线程?我尝试在get_result()函数中添加如下测试:
if self.dialog.res == 1:
print "continue"
self.dialog.close()
#do things
else:
self.dialog.close()
但是我无法从GUI中获取结果到线程中。我该如何将信息从GUI传递给我的线程??我需要使用队列吗?