git.sesse.net Git - nageru/blob - lrameter.h

   1 #ifndef LRAMETER_H
   2 #define LRAMETER_H
   3
   4 #include <math.h>
   5 #include <QLabel>
   6 #include <QPaintEvent>
   7 #include <QWidget>
   8 #include <mutex>
   9
  10 class LRAMeter : public QWidget
  11 {
  12         Q_OBJECT
  13
  14 public:
  15         LRAMeter(QWidget *parent);
  16
  17         void set_levels(float level_lufs, float range_low_lufs, float range_high_lufs) {
  18                 std::unique_lock<std::mutex> lock(level_mutex);
  19                 this->level_lufs = level_lufs;
  20                 this->range_low_lufs = range_low_lufs;
  21                 this->range_high_lufs = range_high_lufs;
  22                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  23         }
  24
  25 private:
  26         void resizeEvent(QResizeEvent *event) override;
  27         void paintEvent(QPaintEvent *event) override;
  28
  29         std::mutex level_mutex;
  30         float level_lufs = -HUGE_VAL;
  31         float range_low_lufs = -HUGE_VAL;
  32         float range_high_lufs = -HUGE_VAL;
  33
  34         QPixmap on_pixmap, off_pixmap;
  35 };
  36
  37 #endif