0507QMultipleDoc

最新推荐文章于 2023-09-26 15:12:36 发布

royzdr

最新推荐文章于 2023-09-26 15:12:36 发布

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本文链接：https://blog.youkuaiyun.com/royzdr/article/details/88534004

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import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class demoQMultipleDoc(QMainWindow):
    count = 0
    def __init__(self):
        super(demoQMultipleDoc, self).__init__()

        self.setWindowTitle("0507QMultipleDoc")

        #创建菜单栏
        bar = self.menuBar()
        file = bar.addMenu("File")
        file.addAction("New")
        file.addAction("Cascade")
        file.addAction("Tiled")
        closeSub = QAction("Close SubWindow", self)
        # +号两边不能有空格
        closeSub.setShortcut("Ctrl+C")
        file.addAction(closeSub)

        file.triggered[QAction].connect(self.windowAction)

        #新建一个主窗口并设置为中央控件
        self.mdi = QMdiArea()
        self.setCentralWidget(self.mdi)


    def windowAction(self, q):
        print(q.text() + " triggered")

        if q.text() == "New":
            demoQMultipleDoc.count += 1
            #新建子窗口
            subWin = QMdiSubWindow()
            #设定窗口内使用的控件
            subWin.setWidget(QTextEdit())
            subWin.setWindowTitle("subWindow" + str(demoQMultipleDoc.count))
            #将子窗口加入到主窗口并显示
            self.mdi.addSubWindow(subWin)
            subWin.show()

        if q.text() == "Cascade":
            self.mdi.cascadeSubWindows()

        if q.text() == "Tiled":
            self.mdi.tileSubWindows()

        if q.text() == "Close SubWindow":
            if demoQMultipleDoc.count > 0:
                demoQMultipleDoc.count -= 1
            self.mdi.closeActiveSubWindow()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = demoQMultipleDoc()
    win.show()
    sys.exit(app.exec_())