Legende an Hauptkarte des Layouts angebunden

2026-04-08 13:56:58 +02:00
parent f1f104a464
commit 8e4031a884
3 changed files with 115 additions and 30 deletions
@@ -0,0 +1,85 @@
+import unittest
+from unittest.mock import patch
+
+from sn_basis.functions.qgiscore_wrapper import (
+    QgsLayoutItemLegend,
+    QgsLayoutItemMap,
+    QgsPrintLayout,
+    QgsProject,
+)
+from sn_basis.modules.print_layout import PrintLayout
+
+
+class _FakeExtent:
+    def isNull(self) -> bool:
+        return False
+
+
+class TestPrintLayout(unittest.TestCase):
+
+    def test_create_legend_item_links_map_and_enables_map_filtering(self):
+        project = QgsProject.instance()
+        print_layout = PrintLayout(project=project)
+        layout = QgsPrintLayout(project)
+        linked_map = QgsLayoutItemMap(layout)
+
+        legend = print_layout._create_legend_item(
+            layout,
+            "legende",
+            linked_map,
+            10.0,
+            20.0,
+            width_mm=50.0,
+            height_mm=30.0,
+        )
+
+        self.assertIs(legend.linked_map, linked_map)
+        self.assertTrue(legend.auto_update_model)
+        self.assertTrue(legend.legend_filter_by_map_enabled)
+
+    def test_create_legend_item_does_not_copy_project_layers_into_legend_model(self):
+        project = QgsProject.instance()
+        print_layout = PrintLayout(project=project)
+        layout = QgsPrintLayout(project)
+        linked_map = QgsLayoutItemMap(layout)
+
+        legend = print_layout._create_legend_item(
+            layout,
+            "legende",
+            linked_map,
+            10.0,
+            20.0,
+        )
+
+        root_group = legend.model().rootGroup()
+        self.assertEqual(root_group.layers, [])
+
+    @patch("sn_basis.modules.print_layout.open_layout_designer")
+    def test_create_single_page_layout_keeps_legend_linked_to_hauptkarte_and_theme(self, _mock_open_designer):
+        project = QgsProject.instance()
+        print_layout = PrintLayout(project=project)
+
+        layout = print_layout.create_single_page_layout(
+            name="Testlayout",
+            page_width_mm=420.0,
+            page_height_mm=297.0,
+            map_width_mm=200.0,
+            map_height_mm=150.0,
+            extent=_FakeExtent(),
+            plotmassstab=5000.0,
+            thema="Thema A",
+        )
+
+        hauptkarte = next(item for item in layout.items if isinstance(item, QgsLayoutItemMap))
+        legende = next(item for item in layout.items if isinstance(item, QgsLayoutItemLegend))
+
+        self.assertTrue(hauptkarte.follow_visibility_preset)
+        self.assertEqual(hauptkarte.follow_visibility_preset_name, "Thema A")
+        self.assertTrue(hauptkarte.keep_layer_set)
+        self.assertIs(legende.linked_map, hauptkarte)
+        self.assertTrue(legende.auto_update_model)
+        self.assertTrue(legende.legend_filter_by_map_enabled)
+
+
+if __name__ == "__main__":
+    unittest.main()