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

   1 #ifndef CORRELATION_METER_H
   2 #define CORRELATION_METER_H
   3
   4 #include <QPaintEvent>
   5 #include <QWidget>
   6 #include <mutex>
   7
   8 class CorrelationMeter : public QWidget
   9 {
  10         Q_OBJECT
  11
  12 public:
  13         CorrelationMeter(QWidget *parent);
  14
  15         void set_correlation(float correlation) {
  16                 std::unique_lock<std::mutex> lock(correlation_mutex);
  17                 this->correlation = correlation;
  18                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  19         }
  20
  21 private:
  22         void resizeEvent(QResizeEvent *event) override;
  23         void paintEvent(QPaintEvent *event) override;
  24
  25         std::mutex correlation_mutex;
  26         float correlation = 0.0f;
  27
  28         QPixmap on_pixmap, off_pixmap;
  29 };
  30
  31 #endif