NSTableView : Context menu for editing column configuration

Question

In some OS X apps, control-clicking on the header of an NSTableView brings up a context menu, that lets the user choose which columns are visible.

Is this something I'll need to implement manually, or is this some hard to find Cocoa feature?

Answer 1

AFAIK, it isn't a standard feature of NSTableView. You have to implement it on your own by setting the menu of NSTableHeaderView.

  NSMenu *menu = [[NSMenu alloc] initWithTitle:@""];
  menu.font = [NSFont menuFontOfSize:[NSFont smallSystemFontSize]];
  menu.showsStateColumn = YES;
  for (NSTableColumn *column in tableView.tableColumns) {
    NSMenuItem *item = [menu addItemWithTitle:column.headerToolTip action:@selector(toggleTableColumn:) keyEquivalent:@""];
    item.state = [column isHidden] ? NSOffState : NSOnState;
    item.representedObject = column;
  }
  tableView.headerView.menu = menu;