Улучшена генерация PDF отчета

- Добавлен OverlayCanvas для отрисовки штампа поверх контента

- Изменено позиционирование штампа

- Добавлены необходимые импорты для работы с Canvas

app.py

@@ -20,7 +20,9 @@ from reportlab.lib import colors
 from reportlab.platypus import SimpleDocTemplate, Table, TableStyle, Paragraph, Spacer, Image
 from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
 from reportlab.lib.units import inch, mm
+from reportlab.pdfgen.canvas import Canvas
 from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_RIGHT
+from reportlab.platypus import Frame
 import sys
 import logging
 
@@ -150,6 +152,34 @@ dictConfig({
 # Создаем логгер для приложения
 logger = logging.getLogger("app")
 
+class OverlayCanvas(Canvas):
+    def __init__(self, *args, **kwargs):
+        Canvas.__init__(self, *args, **kwargs)
+        self._saved_page_states = []
+
+    def showPage(self):
+        self._saved_page_states.append(dict(self.__dict__))
+        self._startPage()
+
+    def save(self):
+        for state in self._saved_page_states:
+            self.__dict__.update(state)
+            self.draw_overlay()  # теперь рисуем поверх
+            Canvas.showPage(self)
+        Canvas.save(self)
+
+    def draw_overlay(self):
+        stamp_path = os.path.join(app_path, 'static', 'stamp256.png')
+        if os.path.exists(stamp_path):
+            self.drawImage(
+                stamp_path,
+                x=400,  # настроить по ширине
+                y=400,  # настроить по высоте
+                width=100,
+                height=100,
+                mask='auto'
+            )
+
 @app.after_request
 def after_request(response):
     if request.cookies.get('user_id', None) == None:
@@ -1107,6 +1137,19 @@ def generate_pdf_report(vin):
             
             elements.append(Spacer(1, 15*mm))
             
+            # Добавляем штамп поверх таблицы
+            # stamp_path = os.path.join(app_path, 'static', 'stamp256.png')
+            # if os.path.exists(stamp_path):
+            #     stamp_img = Image(stamp_path, width=100, height=100)
+            #     stamp_img.hAlign = 'RIGHT'
+            #     stamp_img.vAlign = 'TOP'
+            #     # Размещаем штамп поверх таблицы
+            #     elements.append(stamp_img)
+            
+            # elements.append(Spacer(1, 15*mm))
+
+            
+            
             # Дисклеймер
             disclaimer_text = """
             Disclaimer: This report provides information about salvage or junk vehicles; damage from hail, flood or fire; 
@@ -1120,10 +1163,11 @@ def generate_pdf_report(vin):
             elements.append(Spacer(1, 15*mm))
             elements.append(Paragraph(f"© {current_year} SALVAGEDB.COM - All Rights Reserved", styles['SalvageDBFooter']))
             elements.append(Paragraph("Visit SALVAGEDB.COM for more information about vehicle history", styles['SalvageDBFooter']))
-            elements.append(Paragraph("This report is provided as is without any guarantees or warranty.", styles['Disclaimer']))
+            elements.append(Paragraph('"This report is provided as is without any guarantees or warranty."', styles['Disclaimer']))
             
             # Строим PDF документ
-            doc.build(elements)
+            # doc.build(elements, onFirstPage=add_stamp_overlay, onLaterPages=add_stamp_overlay)
+            doc.build(elements, canvasmaker=OverlayCanvas)
             
             # Получаем содержимое буфера
             pdf_data = buffer.getvalue()