9 class VUMeter : public QWidget
14 VUMeter(QWidget *parent);
16 void set_level(float level) {
17 std::unique_lock<std::mutex> lock(level_mutex);
23 void paintEvent(QPaintEvent *event) override;
25 std::mutex level_mutex;
26 float level = -HUGE_VAL;
29 extern VUMeter *global_vu_meter;