python3+PyQt5实现使用剪贴板做复制与粘帖示例

本文是对《Python Qt GUI快速编程》的第10章的例子剪贴板用Python3+PyQt5进行改写，分别对文本，图片和html文本的复制与粘帖，三种做法大同小异。

    #!/usr/bin/env python3
    import os
    import sys
    from PyQt5.QtCore import (QMimeData, Qt)
    from PyQt5.QtWidgets import (QApplication, QDialog, QGridLayout, QLabel,
        QPushButton)
    from PyQt5.QtGui import QPixmap

    class Form(QDialog):

      def __init__(self, parent=None):
        super(Form, self).__init__(parent)

        textCopyButton = QPushButton("&Copy; Text")
        textPasteButton = QPushButton("Paste &Text;")
        htmlCopyButton = QPushButton("C&opy; HTML")
        htmlPasteButton = QPushButton("Paste &HTML;")
        imageCopyButton = QPushButton("Co&py; Image")
        imagePasteButton = QPushButton("Paste &Image;")
        self.textLabel = QLabel("Original text")
        self.imageLabel = QLabel()
        self.imageLabel.setPixmap(QPixmap(os.path.join(
            os.path.dirname(__file__), "images/clock.png")))

        layout = QGridLayout()
        layout.addWidget(textCopyButton, 0, 0)
        layout.addWidget(imageCopyButton, 0, 1)
        layout.addWidget(htmlCopyButton, 0, 2)
        layout.addWidget(textPasteButton, 1, 0)
        layout.addWidget(imagePasteButton, 1, 1)
        layout.addWidget(htmlPasteButton, 1, 2)
        layout.addWidget(self.textLabel, 2, 0, 1, 2)
        layout.addWidget(self.imageLabel, 2, 2)
        self.setLayout(layout)

        textCopyButton.clicked.connect(self.copyText)
        textPasteButton.clicked.connect(self.pasteText)
        htmlCopyButton.clicked.connect(self.copyHtml)
        htmlPasteButton.clicked.connect(self.pasteHtml)
        imageCopyButton.clicked.connect(self.copyImage)
        imagePasteButton.clicked.connect(self.pasteImage)

        self.setWindowTitle("Clipboard")


      def copyText(self):
        clipboard = QApplication.clipboard()
        clipboard.setText("I've been clipped!")


      def pasteText(self):
        clipboard = QApplication.clipboard()
        self.textLabel.setText(clipboard.text())


      def copyImage(self):
        clipboard = QApplication.clipboard()
        clipboard.setPixmap(QPixmap(os.path.join(
            os.path.dirname(__file__), "images/gvim.png")))

      def pasteImage(self):
        clipboard = QApplication.clipboard()
        self.imageLabel.setPixmap(clipboard.pixmap())


      def copyHtml(self):
        mimeData = QMimeData()
        mimeData.setHtml("<b>Bold and <font color=red>Red</font></b>")
        clipboard = QApplication.clipboard()
        clipboard.setMimeData(mimeData)


      def pasteHtml(self):
        clipboard = QApplication.clipboard()
        mimeData = clipboard.mimeData()
        if mimeData.hasHtml():
          self.textLabel.setText(mimeData.html())

    if __name__ == "__main__":
      app = QApplication(sys.argv)
      form = Form()
      form.show()
      app.exec_()

运行结果：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。