add eval libreoffice writer compare image & centering & check file existence

desktop_env/evaluators/metrics/docs.py

@@ -146,6 +146,30 @@ def has_page_numbers_in_footers(docx_file):
             return 0
     return 1
 
+from docx.enum.text import WD_PARAGRAPH_ALIGNMENT
+
+def is_first_line_centered(docx_file):
+    doc = Document(docx_file)
+    first_paragraph = doc.paragraphs[0]
+
+    # check if the first line is center justified
+    return 1 if first_paragraph.paragraph_format.alignment == WD_PARAGRAPH_ALIGNMENT.CENTER else 0
+
+import os
+def check_file_exists(directory, filename):
+
+    file_path = os.path.join(directory, filename)
+    return 1 if os.path.isfile(file_path) else 0
+
+def compare_contains_image(docx_file1, docx_file2):
+    doc1 = Document(docx_file1)
+    doc2 = Document(docx_file2)
+
+    for para1, para2 in zip(doc1.paragraphs, doc2.paragraphs):
+        for run1, run2 in zip(para1.runs, para2.runs):
+            if ('graphicData' in run1._element.xml and 'graphicData' not in run2._element.xml) or ('graphicData' not in run1._element.xml and 'graphicData' in run2._element.xml):
+                return 0
+    return 1
 
 # file1 = 'path/to/file1.docx'
 # file2 = 'path/to/file2.docx'