python GUI库图形界面开发之PyQt5访问系统剪切板QClipboard类详细使用方法与实例

import os
import sys
from PyQt5.QtCore import QMimeData
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)
#创建复制粘贴按钮，并添加快捷键
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")
#创建文本标签和图像标签，显示文本和图像
self.textLabel = QLabel("Original text")
self.imageLabel = QLabel()
self.imageLabel.setPixmap(QPixmap(os.path.join(
os.path.dirname(__file__), "E:\pyqt5快速开发与实战\第四章\images\python.png")))
#设置栅格布局，并添加部件到相应的位置
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)
#设置主窗口的布局，自定义槽函数，设置标题
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 例子")
def copyText(self):
#实例化剪切板，设置剪切板的文本
clipboard = QApplication.clipboard()
clipboard.setText("I've been clipped!")
def pasteText(self):
#实例化剪切板，标签设置为剪切板的文本并显示
clipboard = QApplication.clipboard()
self.textLabel.setText(clipboard.text())
def copyImage(self):
#实例化剪切板，设置剪切板加载的图想路径
clipboard = QApplication.clipboard()
clipboard.setPixmap(QPixmap(os.path.join(
os.path.dirname(__file__), "./images/python.png")))
def pasteImage(self):
#实例化剪切板，z设置图像标签的图片加载，从剪切板获取路径
clipboard = QApplication.clipboard()
self.imageLabel.setPixmap(clipboard.pixmap())
def copyHtml(self):
#实例化MimeData数据类型，设置类型Html的文本
mimeData = QMimeData()
mimeData.setHtml("<b Bold and <font color=red Red</font </b ")
#实例化剪切板，设置MimeData的初值文本
clipboard = QApplication.clipboard()
clipboard.setMimeData(mimeData)
def pasteHtml(self):
#实例化剪切板，，获取MimeData的数据，并设置为标签的文本值
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()
sys.exit(app.exec_())

#实例化剪切板，标签设置为剪切板的文本并显示
clipboard = QApplication.clipboard()
self.textLabel.setText(clipboard.text())

clipboard = QApplication.clipboard()
self.imageLabel.setPixmap(clipboard.pixmap())