feat: add SimpleTree

dzgui/views/trees/tree_simple.py

@@ -0,0 +1,35 @@
+from typing import TYPE_CHECKING, Union
+
+if TYPE_CHECKING:
+    from dzgui.model.model_factory import FastInsertListStore
+
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk  # noqa
+
+
+class SimpleTree(Gtk.ScrolledWindow):
+    """Simple scrollable 1-column tree"""
+
+    def __init__(
+        self, model: Union[Gtk.ListStore, "FastInsertListStore"], title: str
+    ) -> None:
+        super().__init__(
+            overlay_scrolling=False,
+            propagate_natural_width=True,
+            propagate_natural_height=True,
+        )
+
+        self.tree = Gtk.TreeView(model=model, enable_search=False)
+        renderer = Gtk.CellRendererText()
+        column = Gtk.TreeViewColumn(title, renderer, text=0)
+        column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
+        column.set_resizable(False)
+        column.set_sort_column_id(0)
+        self.tree.append_column(column)
+
+        self.add(self.tree)
+
+    def get_tree(self) -> Gtk.TreeView:
+        return self.tree