无法将进度条扩展到状态栏的整个宽度

Question

我希望进度条扩展到状态栏的整个宽度，但为什么那里有间隙？我可以在进度条上添加一些文本吗，没有像setText（）这样的功能，我该怎么做？

那里有小部件或其他东西吗？

import sys
from PyQt4.QtGui import *
from PyQt4.QtCore import *
class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.resize(800, 600)
#        self.lb=QLabel('finding resource   ')
        self.pb = QProgressBar()
        self.pb.setRange(0, 0)
#        self.pb.setTextVisible(False)
#        self.statusBar().addPermanentWidget(self.lb)
        self.statusBar().setSizeGripEnabled(False)
#        print(self.statusBar().layout() )
        self.statusBar().setStyleSheet("QStatusBar::item {border: none;}")
        self.statusBar().addPermanentWidget(self.pb, 1)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    ui = MainWindow()
    ui.show()
    sys.exit(app.exec_())

Answer 1

刚刚设置

self.pb.setTextVisible(False)

Answer 2

我认为这可以解决您的问题。

    import sys
    from PyQt4.QtGui import *
    from PyQt4.QtCore import *
    class MainWindow(QMainWindow):
        def __init__(self, parent=None):
            super(MainWindow, self).__init__(parent)
            self.pb = QProgressBar()
            # To make the text visible, you must not setRange(0, 0) and
            # you must setValue(something valid). Otherwise, the text is
            # hidden.
            #
            # In the default Windows style, the blank space to the right
            # of the progress bar is room for this text. Calling
            # setTextVisible(False) removes this space. Other styles will
            # place the text in the middle of the progress bar.
            #
            # Unfortunately, I don't see any (simply) way to display a
            # spinning progres bar AND text at the same time.
            self.pb.setRange(0, 9)
            self.pb.setValue(1)
            self.pb.setFormat('finding resource...')
            self.statusBar().setSizeGripEnabled(False)
            self.statusBar().addPermanentWidget(self.pb, 1)

    if __name__ == "__main__":
        app = QApplication(sys.argv)
        ui = MainWindow()
        ui.show()
        sys.exit(app.exec_())