Update pptx2png.py

pptx2png.py

@@ -2,6 +2,7 @@ import io
 from pptx import Presentation
 from pptx.enum.shapes import MSO_SHAPE_TYPE
 from pptx.enum.text import PP_ALIGN
+from pptx.shapes.group import GroupShape
 from PIL import Image, ImageDraw, ImageFont
 import skia
 
@@ -84,6 +85,21 @@ def pptx_to_images(pptx_path):
                                 font_size = int(font_info['size'] / EMU_TO_POINTS)  # Convert EMUs to points
                                 font = ImageFont.truetype("fonts/FXZK-FANXMLT.ttf", font_size)
                                 # font = ImageFont.truetype(font_info['name'], font_info['size'])
+                                
+                                # Calculate text bounding box
+                                bbox = draw.textbbox((0, 0), paragraph_item['text'], font=font)
+                                text_width = bbox[2] - bbox[0]
+                                text_height = bbox[3] - bbox[1]
+                                
+                                # Adjust text position based on alignment
+                                if paragraph_item['align'] == PP_ALIGN.LEFT:
+                                    text_left = text_left
+                                elif paragraph_item['align'] == PP_ALIGN.CENTER:
+                                    text_left = text_left + (shape.width / EMU_TO_PIXELS - text_width) / 2
+                                elif paragraph_item['align'] == PP_ALIGN.RIGHT:
+                                    text_left = text_left + shape.width / EMU_TO_PIXELS - text_width
+                                else:
+                                    text_left = text_left
                                 draw.text((text_left, text_top), paragraph_item['text'], fill=font_info['color'], font=font)
             elif shape.shape_type == MSO_SHAPE_TYPE.PICTURE:
                 # Convert shape position and size from EMUs to pixels