implement right/left key handlers for treeviews

wesnoth · Mar 7, 2016 · 33b8d66 · 33b8d66
1 parent d26c2b6
commit 33b8d66
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Showing 2 changed files with 23 additions and 2 deletions.
diff --git a/src/gui/widgets/tree_view.cpp b/src/gui/widgets/tree_view.cpp
@@ -186,4 +186,26 @@ void ttree_view::signal_handler_left_button_down(const event::tevent event)
 	get_window()->keyboard_capture(this);
 }
 
+void ttree_view::handle_key_left_arrow(SDLMod modifier, bool& handled)
+{
+	ttree_view_node* selected = selected_item();
+	if(!selected || selected->is_folded()) {
+		tscrollbar_container::handle_key_left_arrow(modifier, handled);
+		return;
+	}
+	selected->fold();
+	handled = true;
+}
+
+void ttree_view::handle_key_right_arrow(SDLMod modifier, bool& handled)
+{
+	ttree_view_node* selected = selected_item();
+	if(!selected || !selected->is_folded()) {
+		tscrollbar_container::handle_key_left_arrow(modifier, handled);
+		return;
+	}
+	selected->unfold();
+	handled = true;
+}
+
 } // namespace gui2
diff --git a/src/gui/widgets/tree_view.hpp b/src/gui/widgets/tree_view.hpp
@@ -89,13 +89,12 @@ class ttree_view : public tscrollbar_container
 
 	/** Inherited from tscrollbar_container. */
 	void handle_key_down_arrow(SDLMod modifier, bool& handled);
-
+#endif
 	/** Inherited from tscrollbar_container. */
 	void handle_key_left_arrow(SDLMod modifier, bool& handled);
 
 	/** Inherited from tscrollbar_container. */
 	void handle_key_right_arrow(SDLMod modifier, bool& handled);
-#endif
 private:
 	/**
 	 * @todo evaluate which way the dependancy should go.