Question

我试图编写一个图像显示函数，该函数实例化以下类并在我双击图像时呈现图像，我想通过按ESC关闭窗口，但是它似乎没有用。在复制之前已编写keyPressEvent函数。它以前曾起作用，但在这里不起作用。我很伤心。

let arr = [10, 5, 4, 22, 0, 25, 1000, 1,5555 ,5464564];
// the parseInt are needed because javascript will try to cast your values to string
console.log(arr.sort((a, b) => parseInt(a) - parseInt(b)))

Answer 1

这是工作代码：

from PySide import QtGui,QtCore
import sys
import os
class ImageLabel(QtGui.QWidget):
    def __init__(self, imagePath, parent=None):
        super(ImageLabel, self).__init__(parent)
        self.imagePath = imagePath
        self.initUI()

    def initUI(self):

        from PIL import Image
        pic_size = (Image.open(self.imagePath).width, 
        Image.open(self.imagePath).height)

        self.image_Label = QtGui.QLabel()
        self.image_Label.setWindowIcon(QtGui.QIcon(fileconfig.MAIN_ICON))
        self.image_Label.resize(pic_size[0] + 50, pic_size[1] + 50)
        self.image_Label.setWindowTitle(os.path.basename(self.imagePath))
        self.image_Label.setWindowModality(QtCore.Qt.ApplicationModal)
        self.image_Label.setPixmap(QtGui.QPixmap(self.imagePath))
        self.image_Label.setAlignment(QtCore.Qt.AlignCenter)
        # self.image_Label.show()

    def keyPressEvent(self, event):
        key = event.key()
        if key == QtCore.Qt.Key_Escape:
            self.close()

if __name__ == '__main__':

    app = QtGui.QApplication(sys.argv)
    il = ImageLabel('usr/image/img.png')
    il.show()
    sys.exit(app.exec_())

我只评论了self.image_Label.show()行，对我来说一切正常

pyside键事件无效

1 个答案: