我正在开发一些应用程序。我想创建一个工具栏，点击后将打开设置窗口。但是我不知道该怎么做。现在的方法是，我有一个工具栏图标连接到ShowSettings函数。每次我单击图标时，这个函数都会创建一个新的设置实例(我知道它不应该每次都创建一个新实例，而应该在开始时创建一个实例，然后再处理它。但我不知道如何做)，然后显示与此实例关联的设置窗口。然而，窗口只会以这种方式闪烁一秒钟。我不知道怎么了希望你能帮助我：)import sys
import time
from PyQt4 import QtCore, QtGui
from ui import Ui_MainWindow
from ui import Ui_SettingsWindow
#Aplikacja obslugujaca bramki LF
#zamiana pliku .ui na kod pythona
#pyuic4 untitled.ui -o output.py
class timerThread(QtCore.QThread):
timeElapsed = QtCore.pyqtSignal(float)
def __init__(self, parent=None):
super(timerThread, self).__init__(parent)
self.timeStart = None
def start(self, timeStart):
self.timeStart = timeStart
return super(timerThread, self).start()
def run(self):
while self.parent().isRunning():
self.timeElapsed.emit(time.time() - self.timeStart)
time.sleep(0.1)
class myThread(QtCore.QThread):
timeElapsed = QtCore.pyqtSignal(float)
def __init__(self, parent=None):
super(myThread, self).__init__(parent)
self.timerThread = timerThread(self)
self.timerThread.timeElapsed.connect(self.timeElapsed.emit)
def run(self):
self.timerThread.start(time.time())
iterations = 10000000000
while iterations:
print "Running {0}".format(self.__class__.__name__)
iterations -= 1
time.sleep(10)
class SettingsWindow(QtGui.QMainWindow):
#Constructor:
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui_settigns = Ui_SettingsWindow()
self.ui_settigns.setupUi(self)
class MainWindow(QtGui.QMainWindow):
#Constructor:
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.myThread = myThread(self)
self.myThread.timeElapsed.connect(self.on_myThread_timeElapsed)
self.myThread.finished.connect(self.on_myThread_finished)
#Nie wiem jak przerzucic to do pliku UI bez errorow
#Toolbar
settingsAction = QtGui.QAction(QtGui.QIcon('tools.jpg'), 'Ustawienia', self)
settingsAction.setShortcut('Ctrl+U')
settingsAction.triggered.connect(self.ShowSettings)
self.toolbar = self.addToolBar('Settings')
self.toolbar.addAction(settingsAction)
def UpdateList(self):
contest_name = boBox.currentText()
#jakis try-catch tutaj sie przyda gdyby nie plik nie istnial
#zczytuje z pliku liste robotow
with open('database\%s.txt' % contest_name) as f:
robots_list = f.read().splitlines()
self.ui.listWidget.clear()
self.ui.listWidget.addItems(robots_list)
def Search(self):
text = self.ui.lineEdit.text()
self.ui.lineEdit.clear()
item = self.ui.listWidget.findItems(text, QtCore.Qt.MatchExactly)
#jakiegos try-catcha trzeba tutaj walnac
self.ui.listWidget.setItemSelected(item[0], True)
def ShowSettings(self):
settings = SettingsWindow() #creates settings instance
settings.show()
@QtCore.pyqtSlot()
def on_button_clicked(self):
self.myThread.start()
@QtCore.pyqtSlot(int)
def on_myThread_timeElapsed(self, seconds):
self.ui.lcdNumber.display(seconds)
@QtCore.pyqtSlot()
def on_myThread_finished(self):
self.myThread.terminate()
print "Done"
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = MainWindow()
settings = SettingsWindow()
myapp.show()
settings.show()
sys.exit(app.exec_())
这是用户界面文件
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