印度做网站,网站建设多久可以学会,域名服务器的主要功能,海口建设网站pdf工具#xff0c;之前写的合并工具有点麻烦#xff0c;使用PyQt5库重写合并拆分和删除指定页面的程序
实现如图#xff1a; 代码#xff1a;
import sysimport osfrom PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QVBoxLayout, QWidget, QFileDia…pdf工具之前写的合并工具有点麻烦使用PyQt5库重写合并拆分和删除指定页面的程序
实现如图 代码
import sysimport osfrom PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QVBoxLayout, QWidget, QFileDialog, QListWidget, QMessageBox, QLineEdit, QHBoxLayout, QInputDialogfrom PyQt5.QtCore import Qt, QThread, pyqtSignalfrom PyPDF2 import PdfReader, PdfWriter, PdfMergerfrom PyQt5 import QtGuiclass CustomListWidget(QListWidget):def __init__(self, parentNone):super().__init__(parent)class Worker(QThread):finished pyqtSignal(str)error pyqtSignal(str)def __init__(self, pdf_files, range_strNone, save_pathNone, operationNone):super().__init__()self.pdf_files pdf_filesself.range_str range_strself.save_path save_pathself.operation operationdef run(self):try:if self.operation merge:merger PdfMerger()for pdf in self.pdf_files:merger.append(pdf)merger.write(self.save_path)merger.close()self.finished.emit(PDF文件已成功合并。)elif self.operation split:start_page, end_page self.parse_range(self.range_str)reader PdfReader(self.pdf_files[zxsq-anti-bbcode-0])os.makedirs(self.save_path, exist_okTrue)for page in range(start_page, end_page 1):writer PdfWriter()writer.add_page(reader.pages)split_save_path os.path.join(self.save_path, fPage_{page 1}.pdf)writer.write(split_save_path)self.finished.emit(PDF文件已成功拆分并保存。)elif self.operation delete:start_page, end_page self.parse_range(self.range_str)reader PdfReader(self.pdf_files[zxsq-anti-bbcode-0])writer PdfWriter()for page_num in range(len(reader.pages)):if not (start_page lt; page_num lt; end_page):writer.add_page(reader.pages[zxsq-anti-bbcode-page_num])writer.write(self.save_path)self.finished.emit(指定页面已从PDF中删除。)except Exception as e:self.error.emit(str(e))def parse_range(self, range_str):if - in range_str:start_page, end_page map(int, range_str.split(-))else:start_page end_page int(range_str)return start_page - 1, end_page - 1 # Convert to 0-based indexclass PDFMergerApp(QMainWindow):def __init__(self):super().__init__()self.initUI()self.pdf_files []def initUI(self):self.setWindowTitle(PDF 工具箱)self.setWindowIcon(QtGui.QIcon(111.ico))self.setGeometry(100, 100, 800, 600)mainLayout QVBoxLayout()self.addButton QPushButton(添加 PDF, self)self.addButton.clicked.connect(self.addPDF)mainLayout.addWidget(self.addButton)self.listWidget CustomListWidget(self)mainLayout.addWidget(self.listWidget)# 删除按钮的水平布局deleteLayout QHBoxLayout()self.removeButton QPushButton(删除选定, self)self.removeButton.clicked.connect(self.removeSelected)deleteLayout.addWidget(self.removeButton)self.removeAllButton QPushButton(删除全部, self)self.removeAllButton.clicked.connect(self.removeAll)deleteLayout.addWidget(self.removeAllButton)mainLayout.addLayout(deleteLayout)self.mergeButton QPushButton(合并 PDFs, self)self.mergeButton.clicked.connect(self.mergePDFs)mainLayout.addWidget(self.mergeButton)# 拆分和删除页码的水平布局splitDeleteLayout QHBoxLayout()self.splitInput QLineEdit(self)self.splitInput.setPlaceholderText(输入拆分范围如 1 或 1-4)splitDeleteLayout.addWidget(self.splitInput)self.splitButton QPushButton(拆分 PDF, self)self.splitButton.clicked.connect(self.splitPDF)splitDeleteLayout.addWidget(self.splitButton)self.deleteInput QLineEdit(self)self.deleteInput.setPlaceholderText(输入删除页码如 1 或 1-4)splitDeleteLayout.addWidget(self.deleteInput)self.deleteButton QPushButton(删除页面, self)self.deleteButton.clicked.connect(self.deletePages)splitDeleteLayout.addWidget(self.deleteButton)mainLayout.addLayout(splitDeleteLayout)container QWidget()container.setLayout(mainLayout)self.setCentralWidget(container)def addPDF(self):files, _ QFileDialog.getOpenFileNames(self, 打开文件, , PDF files (*.pdf))for file_path in files:self.addPDFFile(file_path)def addPDFFile(self, file_path):if file_path and file_path not in self.pdf_files:self.pdf_files.append(file_path)self.listWidget.addItem(file_path)def removeSelected(self):for item in self.listWidget.selectedItems():self.pdf_files.remove(item.text())self.listWidget.takeItem(self.listWidget.row(item))def removeAll(self):self.pdf_files.clear()self.listWidget.clear()def mergePDFs(self):save_path, _ QFileDialog.getSaveFileName(self, 保存文件, , PDF files (*.pdf))if save_path:self.thread Worker(self.pdf_files, save_pathsave_path, operationmerge)self.thread.finished.connect(self.onFinished)self.thread.error.connect(self.onError)self.thread.start()def splitPDF(self):if len(self.pdf_files) ! 1:QMessageBox.warning(self, 错误, 请只选择一个PDF文件进行拆分。)returnrange_str self.splitInput.text().strip()folder_path self.getFolderName()if range_str and folder_path:self.thread Worker(self.pdf_files, range_strrange_str, save_pathfolder_path, operationsplit)self.thread.finished.connect(self.onFinished)self.thread.error.connect(self.onError)self.thread.start()def getFolderName(self):folder_path QFileDialog.getExistingDirectory(self, 选择保存拆分文件的位置)if folder_path:folder_name, ok QInputDialog.getText(self, 文件夹名称, 输入文件夹名称:)if ok and folder_name:full_path os.path.join(folder_path, folder_name)os.makedirs(full_path, exist_okTrue)return full_pathreturn Nonedef deletePages(self):if len(self.pdf_files) ! 1:QMessageBox.warning(self, 错误, 请只选择一个PDF文件进行删除操作。)returnrange_str self.deleteInput.text().strip()save_path QFileDialog.getSaveFileName(self, 保存文件, , PDF files (*.pdf))[zxsq-anti-bbcode-0]if save_path and range_str:self.thread Worker(self.pdf_files, range_strrange_str, save_pathsave_path, operationdelete)self.thread.finished.connect(self.onFinished)self.thread.error.connect(self.onError)self.thread.start()def onFinished(self, message):self.show_message(操作完成, message)self.clear_pdf_list()def onError(self, error_message):self.show_message(操作失败, error_message)def show_message(self, title, message):QMessageBox.information(self, title, message)def clear_pdf_list(self):self.pdf_files.clear()self.listWidget.clear()def main():app QApplication(sys.argv)ex PDFMergerApp()ex.show()sys.exit(app.exec_())if __name__ __main__:main()
