Question

我有一个显示图像的小部件。使用鼠标双击图像时，它将打开一个新窗口，其中包含调整大小的图像。每次双击，它都会继续打开其他窗口。目前这有效。

我现在正在尝试使用multiprocessing在新的单独进程中打开每个窗口。新窗口不会将信息传递回父进程，因此我只希望新窗口完全独立。我该如何实现？

from PyQt4 import QtGui, QtCore
import multiprocessing as mp
import sys

class ImageZoom(QtGui.QMainWindow):
    def __init__(self, parent, image_file):
        super(ImageZoom, self).__init__(parent)
        self.image_file = image_file

        self.picture = QtGui.QLabel()
        self.pixmap = QtGui.QPixmap(self.image_file)
        self.pixmap = self.pixmap.scaled(900,900, QtCore.Qt.KeepAspectRatio)
        self.picture.setPixmap(self.pixmap)
        self.setCentralWidget(self.picture)

class Window(QtGui.QMainWindow):
    def __init__(self, parent=None):
        super(Window, self).__init__(parent)

        self.image_file = '1.jpeg'
        self.picture = QtGui.QLabel()
        self.pixmap = QtGui.QPixmap(self.image_file)
        self.picture.setPixmap(self.pixmap)

        self.setCentralWidget(self.picture)
        self.windows = []

        self.timer = QtCore.QTimer()
        self.timer.timeout.connect(self.length)
        self.timer.start(1000)

    def length(self):
        print(len(self.windows))

    def mouseDoubleClickEvent(self, event):
        print('double click')
        dialog = ImageZoom(self, self.image_file)
        self.windows.append(dialog)
        dialog.show()

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    main = Window()
    main.show()
    sys.exit(app.exec_())

如何在单独的过程中打开新的PyQt窗口

0 个答案: