Python结合PyQt5实现MD(Markdown)转DOCX工具

import sys
import os
from markdown import markdown
from docx import Document
from docx.shared import Pt, RGBColor, Inches
from docx.oxml.ns import qn
from docx.enum.text import WD_PARAGRAPH_ALIGNMENT
from PyQt5.QtWidgets import (QApplication, QMainWindow, QVBoxLayout, QHBoxLayout, 
                            QPushButton, QFileDialog, QTextEdit, QLabel, 
                            QWidget, QMessageBox, QProgressBar)
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QFont, QIcon


class MarkdownToDocxConverter(QMainWindow):
    def __init__(self):
        super().__init__()
        self.initUI()
        self.setWindowIcon(QIcon('icon.png'))  # 请准备一个图标文件或删除这行
        
    def initUI(self):
        self.setWindowTitle('Markdown 转 DOCX 工具')
        self.setGeometry(300, 300, 800, 600)
        
        # 主窗口部件
        main_widget = QWidget()
        self.setCentralWidget(main_widget)
        
        # 主布局
        main_layout = QVBoxLayout()
        main_widget.setLayout(main_layout)
        
        # 标题
        title_label = QLabel('Markdown 转 DOCX 转换器')
        title_label.setFont(QFont('Microsoft YaHei', 16, QFont.Bold))
        title_label.setAlignment(Qt.AlignCenter)
        title_label.setStyleSheet('color: #2c3e50; margin-bottom: 20px;')
        main_layout.addWidget(title_label)
        
        # 文件选择区域
        file_layout = QHBoxLayout()
        
        self.md_file_label = QLabel('未选择文件')
        self.md_file_label.setFont(QFont('Microsoft YaHei', 10))
        self.md_file_label.setStyleSheet('border: 1px solid #ddd; padding: 5px;')
        self.md_file_label.setFixedHeight(30)
        
        select_btn = QPushButton('选择 Markdown 文件')
        select_btn.setFont(QFont('Microsoft YaHei', 10))
        select_btn.setStyleSheet('''
            QPushButton {
                background-color: #3498db;
                color: white;
                border: none;
                padding: 8px 15px;
                border-radius: 4px;
            }
            QPushButton:hover {
                background-color: #2980b9;
            }
        ''')
        select_btn.clicked.connect(self.select_md_file)
        
        file_layout.addWidget(self.md_file_label, stretch=4)
        file_layout.addWidget(select_btn, stretch=1)
        main_layout.addLayout(file_layout)
        
        # 预览区域
        preview_label = QLabel('预览内容:')
        preview_label.setFont(QFont('Microsoft YaHei', 10, QFont.Bold))
        main_layout.addWidget(preview_label)
        
        self.preview_text = QTextEdit()
        self.preview_text.setFont(QFont('Consolas', 10))
        self.preview_text.setReadOnly(True)
        self.preview_text.setStyleSheet('''
            QTextEdit {
                border: 1px solid #ddd;
                padding: 10px;
                background-color: #f9f9f9;
            }
        ''')
        main_layout.addWidget(self.preview_text, stretch=3)
        
        # 进度条
        self.progress_bar = QProgressBar()
        self.progress_bar.setRange(0, 100)
        self.progress_bar.setValue(0)
        self.progress_bar.setTextVisible(True)
        self.progress_bar.setStyleSheet('''
            QProgressBar {
                border: 1px solid #ddd;
                border-radius: 3px;
                text-align: center;
                height: 20px;
            }
            QProgressBar::chunk {
                background-color: #2ecc71;
                width: 10px;
            }
        ''')
        main_layout.addWidget(self.progress_bar)
        
        # 转换按钮
        convert_btn = QPushButton('转换为 DOCX')
        convert_btn.setFont(QFont('Microsoft YaHei', 12, QFont.Bold))
        convert_btn.setStyleSheet('''
            QPushButton {
                background-color: #2ecc71;
                color: white;
                border: none;
                padding: 10px 20px;
                border-radius: 4px;
                margin-top: 15px;
            }
            QPushButton:hover {
                background-color: #27ae60;
            }
            QPushButton:disabled {
                background-color: #95a5a6;
            }
        ''')
        convert_btn.clicked.connect(self.convert_to_docx)
        convert_btn.setEnabled(False)
        self.convert_btn = convert_btn
        main_layout.addWidget(convert_btn, alignment=Qt.AlignCenter)
        
        # 状态栏
        self.statusBar().showMessage('准备就绪')
        
        # 成员变量
        self.md_file_path = ''
        
    def select_md_file(self):
        options = QFileDialog.Options()
        file_path, _ = QFileDialog.getOpenFileName(
            self, "选择 Markdown 文件", "", 
            "Markdown Files (*.md *.markdown);;All Files (*)", 
            options=options
        )
        
        if file_path:
            self.md_file_path = file_path
            self.md_file_label.setText(file_path)
            self.convert_btn.setEnabled(True)
            
            # 预览文件内容
            try:
                with open(file_path, 'r', encoding='utf-8') as f:
                    content = f.read()
                    self.preview_text.setPlainText(content)
                    self.statusBar().showMessage('文件加载成功')
            except Exception as e:
                QMessageBox.warning(self, '错误', f'无法读取文件: {str(e)}')
                self.statusBar().showMessage('文件读取失败')
    
    def convert_to_docx(self):
        if not self.md_file_path:
            QMessageBox.warning(self, '警告', '请先选择 Markdown 文件')
            return
            
        # 设置保存路径
        options = QFileDialog.Options()
        save_path, _ = QFileDialog.getSaveFileName(
            self, "保存 DOCX 文件", 
            os.path.splitext(self.md_file_path)[0] + '.docx', 
            "Word Documents (*.docx);;All Files (*)", 
            options=options
        )
        
        if not save_path:
            return
            
        self.progress_bar.setValue(10)
        self.statusBar().showMessage('正在转换...')
        QApplication.processEvents()  # 更新UI
        
        try:
            # 读取Markdown内容
            with open(self.md_file_path, 'r', encoding='utf-8') as f:
                md_content = f.read()
            
            self.progress_bar.setValue(30)
            
            # 创建Word文档
            doc = Document()
            
            # 设置默认字体
            doc.styles['Normal'].font.name = '微软雅黑'
            doc.styles['Normal']._element.rPr.rFonts.set(qn('w:eastAsia'), '微软雅黑')
            doc.styles['Normal'].font.size = Pt(10.5)
            
            # 转换Markdown为HTML
            html_content = markdown(md_content, extensions=[
                'extra',  # 支持表格、代码块等
                'codehilite',  # 代码高亮
                'tables',  # 表格支持
                'fenced_code'  # 围栏代码块
            ])
            
            self.progress_bar.setValue(50)
            
            # 将HTML内容添加到Word文档
            self.add_html_to_doc(html_content, doc)
            
            self.progress_bar.setValue(80)
            
            # 保存文档
            doc.save(save_path)
            
            self.progress_bar.setValue(100)
            self.statusBar().showMessage('转换完成!')
            QMessageBox.information(self, '成功', '文件转换完成!')
            
        except Exception as e:
            QMessageBox.critical(self, '错误', f'转换过程中出错: {str(e)}')
            self.statusBar().showMessage('转换失败')
        finally:
            self.progress_bar.setValue(0)
    
    def add_html_to_doc(self, html, doc):
        from bs4 import BeautifulSoup
        
        soup = BeautifulSoup(html, 'html.parser')
        
        for element in soup.children:
            if element.name == 'h1':
                self.add_heading(doc, element.text, 0)
            elif element.name == 'h2':
                self.add_heading(doc, element.text, 1)
            elif element.name == 'h3':
                self.add_heading(doc, element.text, 2)
            elif element.name == 'h4':
                self.add_heading(doc, element.text, 3)
            elif element.name == 'h5':
                self.add_heading(doc, element.text, 4)
            elif element.name == 'h6':
                self.add_heading(doc, element.text, 5)
            elif element.name == 'p':
                self.add_paragraph(doc, element.text)
            elif element.name == 'ul':
                self.add_list(doc, element, False)
            elif element.name == 'ol':
                self.add_list(doc, element, True)
            elif element.name == 'table':
                self.add_table(doc, element)
            elif element.name == 'pre':
                self.add_code_block(doc, element)
            elif element.name == 'blockquote':
                self.add_quote(doc, element)
            elif element.name == 'hr':
                self.add_horizontal_rule(doc)
    
    def add_heading(self, doc, text, level):
        heading = doc.add_heading(text, level)
        # 设置中文字体
        for run in heading.runs:
            run.font.name = '微软雅黑'
            run._element.rPr.rFonts.set(qn('w:eastAsia'), '微软雅黑')
    
    def add_paragraph(self, doc, text):
        p = doc.add_paragraph(text)
        # 设置中文字体
        for run in p.runs:
            run.font.name = '微软雅黑'
            run._element.rPr.rFonts.set(qn('w:eastAsia'), '微软雅黑')
    
    def add_list(self, doc, element, ordered):
        for li in element.find_all('li', recursive=False):
            if ordered:
                doc.add_paragraph(li.text, style='List Number')
            else:
                doc.add_paragraph(li.text, style='List Bullet')
            # 递归处理子列表
            for child in li.children:
                if child.name in ['ul', 'ol']:
                    self.add_list(doc, child, child.name == 'ol')
    
    def add_table(self, doc, element):
        rows = element.find_all('tr')
        if not rows:
            return
            
        # 创建表格
        table = doc.add_table(rows=len(rows), cols=len(rows[0].find_all(['th', 'td'])))
        table.style = 'Table Grid'  # 添加边框
        
        for i, row in enumerate(rows):
            cells = row.find_all(['th', 'td'])
            for j, cell in enumerate(cells):
                table.cell(i, j).text = cell.get_text()
                # 设置中文字体
                for paragraph in table.cell(i, j).paragraphs:
                    for run in paragraph.runs:
                        run.font.name = '微软雅黑'
                        run._element.rPr.rFonts.set(qn('w:eastAsia'), '微软雅黑')
                
                # 表头加粗
                if cell.name == 'th':
                    for paragraph in table.cell(i, j).paragraphs:
                        for run in paragraph.runs:
                            run.font.bold = True
    
    def add_code_block(self, doc, element):
        code = element.find('code')
        if not code:
            return
            
        code_text = code.get_text()
        
        # 添加代码段落
        p = doc.add_paragraph()
        p.paragraph_format.left_indent = Inches(0.5)
        p.paragraph_format.space_before = Pt(6)
        p.paragraph_format.space_after = Pt(6)
        
        run = p.add_run(code_text)
        run.font.name = 'Consolas'
        run.font.size = Pt(10)
        run.font.color.rgb = RGBColor(0x36, 0x36, 0x36)
        
        # 添加灰色背景
        shading_elm = p._element.get_or_add_pPr().get_or_add_shd()
        shading_elm.set(qn('w:fill'), 'F0F0F0')
    
    def add_quote(self, doc, element):
        p = doc.add_paragraph()
        p.paragraph_format.left_indent = Inches(0.5)
        p.paragraph_format.first_line_indent = Inches(-0.25)
        p.paragraph_format.space_before = Pt(6)
        p.paragraph_format.space_after = Pt(6)
        
        run = p.add_run(element.get_text())
        run.font.name = '微软雅黑'
        run._element.rPr.rFonts.set(qn('w:eastAsia'), '微软雅黑')
        run.font.italic = True
        run.font.color.rgb = RGBColor(0x66, 0x66, 0x66)
        
        # 添加左边框
        p._element.get_or_add_pPr().get_or_add_pBdr().left.val = 'single'
        p._element.get_or_add_pPr().get_or_add_pBdr().left.sz = 4
        p._element.get_or_add_pPr().get_or_add_pBdr().left.color = 'auto'
    
    def add_horizontal_rule(self, doc):
        p = doc.add_paragraph()
        p.paragraph_format.alignment = WD_PARAGRAPH_ALIGNMENT.CENTER
        run = p.add_run('―' * 30)  # 使用长破折号作为分隔线
        run.font.color.rgb = RGBColor(0xCC, 0xCC, 0xCC)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    
    # 设置应用程序字体
    font = QFont('Microsoft YaHei', 10)
    app.setFont(font)
    
    # 设置样式表
    app.setStyleSheet('''
        QMainWindow {
            background-color: #f5f7fa;
        }
        QLabel {
            color: #34495e;
        }
    ''')
    
    converter = MarkdownToDocxConverter()
    converter.show()
    sys.exit(app.exec_())

pip install PyQt5 markdown python-docx beautifulsoup4