fix:实现基础功能

2025-12-10 22:36:12 +08:00
commit 39aa02c74e
35 changed files with 2990 additions and 0 deletions
--- a/utils/pptx_utils.py
+++ b/utils/pptx_utils.py
@@ -0,0 +1,111 @@
+# ==========================================
+# 3. PPT 通用工具 (PPT Utilities)
+# ==========================================
+import os
+
+from utils.font_utils import is_font_available
+
+
+def replace_text_in_slide(prs, slide_index, placeholder, text):
+    """在指定幻灯片中替换指定占位符的文本，并保持原有格式"""
+    slide = prs.slides[slide_index]
+    for shape in slide.shapes:
+        if shape.name == placeholder:
+            if not shape.has_text_frame:
+                continue
+
+            # 1. 保存原有格式
+            original_paragraph_formats = []
+            for paragraph in shape.text_frame.paragraphs:
+                paragraph_format = {
+                    'alignment': paragraph.alignment,
+                    'space_before': getattr(paragraph, 'space_before', None),
+                    'space_after': getattr(paragraph, 'space_after', None),
+                    'line_spacing': getattr(paragraph, 'line_spacing', None),
+                    'left_indent': getattr(paragraph, 'left_indent', None),
+                    'right_indent': getattr(paragraph, 'right_indent', None),
+                    'first_line_indent': getattr(paragraph, 'first_line_indent', None),
+                    'font_info': []
+                }
+                for run in paragraph.runs:
+                    run_format = {
+                        'font_name': run.font.name,
+                        'font_size': run.font.size,
+                        'bold': run.font.bold,
+                        'italic': run.font.italic,
+                        'underline': run.font.underline,
+                        'color': run.font.color,
+                        'character_space': getattr(run.font, 'space', None),
+                        'all_caps': getattr(run.font, 'all_caps', None),
+                        'small_caps': getattr(run.font, 'small_caps', None)
+                    }
+                    paragraph_format['font_info'].append(run_format)
+                original_paragraph_formats.append(paragraph_format)
+
+            # 2. 设置新文本
+            shape.text = str(text)  # 确保是字符串
+
+            # 3. 恢复格式
+            for i, paragraph in enumerate(shape.text_frame.paragraphs):
+                orig_idx = i if i < len(original_paragraph_formats) else -1
+                if not original_paragraph_formats: break
+
+                original_para = original_paragraph_formats[orig_idx]
+
+                # 恢复段落属性
+                for attr in ['alignment', 'space_before', 'space_after', 'line_spacing',
+                             'left_indent', 'right_indent', 'first_line_indent']:
+                    if original_para[attr] is not None:
+                        setattr(paragraph, attr, original_para[attr])
+
+                # 恢复字体属性
+                for j, run in enumerate(paragraph.runs):
+                    font_idx = j if j < len(original_para['font_info']) else 0
+                    if not original_para['font_info']: break
+
+                    original_font = original_para['font_info'][font_idx]
+
+                    # 字体名称检查与回退
+                    if original_font['font_name']:
+                        if is_font_available(original_font['font_name']):
+                            run.font.name = original_font['font_name']
+                        else:
+                            run.font.name = "微软雅黑"
+
+                    # 恢复其他字体属性
+                    if original_font['font_size']: run.font.size = original_font['font_size']
+                    if original_font['bold']: run.font.bold = original_font['bold']
+                    if original_font['italic']: run.font.italic = original_font['italic']
+                    if original_font['underline']: run.font.underline = original_font['underline']
+                    if original_font['all_caps']: run.font.all_caps = original_font['all_caps']
+
+                    if original_font['character_space']:
+                        try:
+                            run.font.space = original_font['character_space']
+                        except:
+                            pass
+
+                    if original_font['color']:
+                        try:
+                            if hasattr(original_font['color'], 'rgb'):
+                                run.font.color.rgb = original_font['color'].rgb
+                        except:
+                            pass
+
+
+def replace_picture(prs, slide_index, placeholder, img_path):
+    """在指定幻灯片中替换指定占位符的图片"""
+    if not os.path.exists(img_path):
+        print(f"警告: 图片路径不存在 {img_path}")
+        return
+
+    slide = prs.slides[slide_index]
+    sp_tree = slide.shapes._spTree
+
+    for i, shape in enumerate(slide.shapes):
+        if shape.name == placeholder:
+            left, top, width, height = shape.left, shape.top, shape.width, shape.height
+            sp_tree.remove(shape._element)
+            new_shape = slide.shapes.add_picture(img_path, left, top, width, height)
+            sp_tree.insert(i, new_shape._element)
+            break