MP lobby: fix player list scrolling to top when it changes

(cherry-picked from commit a365847)
wesnoth · Oct 7, 2018 · 8a2cf9a · 8a2cf9a
1 parent eeace5a
commit 8a2cf9a
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/gui/dialogs/multiplayer/lobby.cpp b/src/gui/dialogs/multiplayer/lobby.cpp
@@ -583,6 +583,8 @@ void mp_lobby::update_playerlist()
 	assert(player_list_.other_games.tree);
 	assert(player_list_.other_rooms.tree);
 
+	unsigned scrollbar_position = player_list_.tree->get_vertical_scrollbar_item_position();
+
 	player_list_.active_game.tree->clear();
 #ifdef ENABLE_ROOM_MEMBER_TREE
 	player_list_.active_room.tree->clear();
@@ -688,6 +690,8 @@ void mp_lobby::update_playerlist()
 	player_list_.other_rooms.update_player_count_label();
 	player_list_.other_games.update_player_count_label();
 
+	player_list_.tree->set_vertical_scrollbar_item_position(scrollbar_position);
+
 	player_list_dirty_ = false;
 	last_lobby_update_ = SDL_GetTicks();
 }