scene: Add isBackground()

simulton · May 11, 2024 · 2191015 · 2191015
1 parent dd6387a
commit 2191015
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diff --git a/qschematic/scene.cpp b/qschematic/scene.cpp
@@ -345,6 +345,15 @@ Scene::removeItem(const std::shared_ptr<Items::Item> item)
     return true;
 }
 
+bool
+Scene::isBackground(const QGraphicsItem* item) const
+{
+    // Note: Using dynamic_cast instead of qgraphicsitem_cast becase we are not registering the background as a custom
+    //       item.
+
+    return dynamic_cast<const Background*>(item) == _background;
+}
+
 QList<std::shared_ptr<Items::Item>>
 Scene::items() const
 {

diff --git a/qschematic/scene.hpp b/qschematic/scene.hpp
@@ -147,6 +147,16 @@ namespace QSchematic
             return ret;
         }
 
+        /**
+         * Check whether an item is the current background item.
+         *
+         * @param item The item to check.
+         * @return Whether the item is the current background item.
+         */
+        [[nodiscard]]
+        bool
+        isBackground(const QGraphicsItem* item) const;
+
         QList<std::shared_ptr<Items::Item>> itemsAt(const QPointF& scenePos, Qt::SortOrder order = Qt::DescendingOrder) const;
         std::vector<std::shared_ptr<Items::Item>> selectedItems() const;
         std::vector<std::shared_ptr<Items::Item>> selectedTopLevelItems() const;