autofilter: fix range clash with table autofilter

Fix issue where a worksheet and table filter could overlap and
create a corrupt file.

Closes #1102

xlsxwriter/test/workbook/test_overlap_exceptions.py

@@ -96,3 +96,21 @@ def test_overlaps08(self):
 
         with self.assertRaises(OverlappingRange):
             worksheet.merge_range("B3:C3", "")
+
+    def test_overlaps09(self):
+        """Test Worksheet range overlap exceptions"""
+        worksheet = self.workbook.add_worksheet()
+
+        worksheet.add_table("A1:C5", {"autofilter": True})
+
+        with self.assertRaises(OverlappingRange):
+            worksheet.autofilter("A1:C5")
+
+    def test_overlaps10(self):
+        """Test Worksheet range overlap exceptions"""
+        worksheet = self.workbook.add_worksheet()
+
+        worksheet.autofilter("A1:C5")
+
+        with self.assertRaises(OverlappingRange):
+            worksheet.add_table("A1:C5", {"autofilter": True})

xlsxwriter/worksheet.py

@@ -2390,7 +2390,7 @@ def autofilter(self, first_row, first_col, last_row, last_col):
         if last_col < first_col:
             (first_col, last_col) = (last_col, first_col)
 
-        # Build up the print area range "Sheet1!$A$1:$C$13".
+        # Build up the autofilter area range "Sheet1!$A$1:$C$13".
         area = self._convert_name_area(first_row, first_col, last_row, last_col)
         ref = xl_range(first_row, first_col, last_row, last_col)
 
@@ -2400,7 +2400,16 @@ def autofilter(self, first_row, first_col, last_row, last_col):
 
         # Store the filter cell positions for use in the autofit calculation.
         for col in range(first_col, last_col + 1):
-            self.filter_cells[(first_row, col)] = True
+            # Check that the autofilter doesn't overlap a table filter.
+            if self.filter_cells.get((first_row, col)):
+                filter_type, filter_range = self.filter_cells.get((first_row, col))
+                if filter_type == "table":
+                    raise OverlappingRange(
+                        f"Worksheet autofilter range '{ref}' overlaps previous "
+                        f"Table autofilter range '{filter_range}'."
+                    )
+
+            self.filter_cells[(first_row, col)] = ("worksheet", ref)
 
     def filter_column(self, col, criteria):
         """
@@ -3591,7 +3600,16 @@ def add_table(self, first_row, first_col, last_row, last_col, options=None):
         # Store the filter cell positions for use in the autofit calculation.
         if options["autofilter"]:
             for col in range(first_col, last_col + 1):
-                self.filter_cells[(first_row, col)] = True
+                # Check that the table autofilter doesn't overlap a worksheet filter.
+                if self.filter_cells.get((first_row, col)):
+                    filter_type, filter_range = self.filter_cells.get((first_row, col))
+                    if filter_type == "worksheet":
+                        raise OverlappingRange(
+                            f"Table autofilter range '{cell_range}' overlaps previous "
+                            f"Worksheet autofilter range '{filter_range}'."
+                        )
+
+                self.filter_cells[(first_row, col)] = ("table", cell_range)
 
         return 0