段落功能

src/word_main_window.py

@@ -817,6 +817,15 @@ class WordStyleMainWindow(QMainWindow):
         self.ribbon.underline_btn.clicked.connect(self.on_underline_clicked)
         self.ribbon.color_btn.clicked.connect(self.on_color_clicked)
         
+        # 段落对齐按钮信号
+        if hasattr(self.ribbon, 'align_left_btn'):
+            self.ribbon.align_left_btn.clicked.connect(self.on_align_left_clicked)
+            self.ribbon.align_center_btn.clicked.connect(self.on_align_center_clicked)
+            self.ribbon.align_right_btn.clicked.connect(self.on_align_right_clicked)
+            self.ribbon.align_justify_btn.clicked.connect(self.on_align_justify_clicked)
+            # 连接文本光标位置变化信号，实时更新对齐按钮状态
+            self.text_edit.cursorPositionChanged.connect(self.on_cursor_position_changed)
+        
         # 查找和替换按钮信号
         if hasattr(self.ribbon, 'find_btn'):
             self.ribbon.find_btn.clicked.connect(self.show_find_dialog)
@@ -1282,6 +1291,105 @@ class WordStyleMainWindow(QMainWindow):
             if cursor.hasSelection():
                 self.status_bar.showMessage("字体颜色已设置，新输入的文本将使用该颜色", 2000)
     
+    def on_align_left_clicked(self, checked):
+        """左对齐按钮点击处理"""
+        if checked:
+            self.set_paragraph_alignment(Qt.AlignLeft)
+            self.update_alignment_buttons('left')
+            self.status_bar.showMessage("段落已设置为左对齐", 2000)
+        else:
+            # 如果取消选中，重新选中（确保始终有一个按钮被选中）
+            self.ribbon.align_left_btn.setChecked(True)
+    
+    def on_align_center_clicked(self, checked):
+        """居中对齐按钮点击处理"""
+        if checked:
+            self.set_paragraph_alignment(Qt.AlignCenter)
+            self.update_alignment_buttons('center')
+            self.status_bar.showMessage("段落已设置为居中对齐", 2000)
+        else:
+            # 如果取消选中，重新选中（确保始终有一个按钮被选中）
+            self.ribbon.align_center_btn.setChecked(True)
+    
+    def on_align_right_clicked(self, checked):
+        """右对齐按钮点击处理"""
+        if checked:
+            self.set_paragraph_alignment(Qt.AlignRight)
+            self.update_alignment_buttons('right')
+            self.status_bar.showMessage("段落已设置为右对齐", 2000)
+        else:
+            # 如果取消选中，重新选中（确保始终有一个按钮被选中）
+            self.ribbon.align_right_btn.setChecked(True)
+    
+    def on_align_justify_clicked(self, checked):
+        """两端对齐按钮点击处理"""
+        if checked:
+            self.set_paragraph_alignment(Qt.AlignJustify)
+            self.update_alignment_buttons('justify')
+            self.status_bar.showMessage("段落已设置为两端对齐", 2000)
+        else:
+            # 如果取消选中，重新选中（确保始终有一个按钮被选中）
+            self.ribbon.align_justify_btn.setChecked(True)
+    
+    def set_paragraph_alignment(self, alignment):
+        """设置段落对齐方式"""
+        cursor = self.text_edit.textCursor()
+        
+        if cursor.hasSelection():
+            # 如果有选中文本，设置选中文本的对齐方式
+            block_format = cursor.blockFormat()
+            block_format.setAlignment(alignment)
+            cursor.setBlockFormat(block_format)
+        else:
+            # 如果没有选中文本，设置当前段落的对齐方式
+            cursor.select(QTextCursor.BlockUnderCursor)
+            block_format = cursor.blockFormat()
+            block_format.setAlignment(alignment)
+            cursor.setBlockFormat(block_format)
+    
+    def update_alignment_buttons(self, active_alignment):
+        """更新对齐按钮的选中状态"""
+        if not hasattr(self.ribbon, 'align_left_btn'):
+            return
+            
+        # 重置所有对齐按钮的状态
+        self.ribbon.align_left_btn.setChecked(False)
+        self.ribbon.align_center_btn.setChecked(False)
+        self.ribbon.align_right_btn.setChecked(False)
+        self.ribbon.align_justify_btn.setChecked(False)
+        
+        # 设置当前活动的对齐按钮
+        if active_alignment == 'left':
+            self.ribbon.align_left_btn.setChecked(True)
+        elif active_alignment == 'center':
+            self.ribbon.align_center_btn.setChecked(True)
+        elif active_alignment == 'right':
+            self.ribbon.align_right_btn.setChecked(True)
+        elif active_alignment == 'justify':
+            self.ribbon.align_justify_btn.setChecked(True)
+    
+    def get_current_alignment(self):
+        """获取当前段落的对齐方式"""
+        cursor = self.text_edit.textCursor()
+        block_format = cursor.blockFormat()
+        alignment = block_format.alignment()
+        
+        if alignment == Qt.AlignLeft:
+            return 'left'
+        elif alignment == Qt.AlignCenter:
+            return 'center'
+        elif alignment == Qt.AlignRight:
+            return 'right'
+        elif alignment == Qt.AlignJustify:
+            return 'justify'
+        else:
+            return 'left'  # 默认返回左对齐
+    
+    def on_cursor_position_changed(self):
+        """文本光标位置变化处理 - 更新对齐按钮状态"""
+        current_alignment = self.get_current_alignment()
+        self.update_alignment_buttons(current_alignment)
+    
     def update_weather_display(self, weather_data):
         """更新天气显示"""
         if 'error' in weather_data: