public function add_sidecalendar_blocks(core_calendar_renderer $renderer, $showfilters=false, $view=null) {
        if ($showfilters) {
            $filters = new block_contents();
            $filters->content = $renderer->event_filter();
            $filters->footer = '';
            $filters->title = get_string('eventskey', 'calendar');
            $renderer->add_pretend_calendar_block($filters, BLOCK_POS_RIGHT);
        }
        $block = new block_contents;
        $block->content = $renderer->fake_block_threemonths($this);
        $block->footer = '';
        $block->title = get_string('monthlyview', 'calendar');
        $renderer->add_pretend_calendar_block($block, BLOCK_POS_RIGHT);
    }