1 files changed, 63 insertions, 0 deletions
diff --git a/source/blender/editors/space_outliner/tree/tree_display_scenes.cc b/source/blender/editors/space_outliner/tree/tree_display_scenes.cc
new file mode 100644
index 00000000000..f377512d81e
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+++ b/source/blender/editors/space_outliner/tree/tree_display_scenes.cc
@@ -0,0 +1,63 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup spoutliner
+ */
+
+#include "BLI_listbase.h"
+#include "BLI_listbase_wrapper.hh"
+#include "BLI_mempool.h"
+
+#include "BKE_main.h"
+
+#include "../outliner_intern.h"
+#include "tree_display.hh"
+
+namespace blender::ed::outliner {
+
+/* Convenience/readability. */
+template<typename T> using List = ListBaseWrapper<T>;
+
+TreeDisplayScenes::TreeDisplayScenes(SpaceOutliner &space_outliner)
+    : AbstractTreeDisplay(space_outliner)
+{
+}
+
+ListBase TreeDisplayScenes::buildTree(const TreeSourceData &source_data)
+{
+  /* On first view we open scenes. */
+  const int show_opened = !space_outliner_.treestore ||
+                          !BLI_mempool_len(space_outliner_.treestore);
+  ListBase tree = {nullptr};
+
+  for (ID *id : List<ID>(source_data.bmain->scenes)) {
+    Scene *scene = reinterpret_cast<Scene *>(id);
+    TreeElement *te = outliner_add_element(&space_outliner_, &tree, scene, nullptr, 0, 0);
+    TreeStoreElem *tselem = TREESTORE(te);
+
+    /* New scene elements open by default */
+    if ((scene == source_data.scene && show_opened) || !tselem->used) {
+      tselem->flag &= ~TSE_CLOSED;
+    }
+
+    outliner_make_object_parent_hierarchy(&te->subtree);
+  }
+
+  return tree;
+}
+
+}  // namespace blender::ed::outliner