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

   1 #ifndef CORRELATION_METER_H
   2 #define CORRELATION_METER_H
   3
   4 #include <mutex>
   5
   6 #include <QPixmap>
   7 #include <QString>
   8 #include <QWidget>
   9
  10 class QObject;
  11 class QPaintEvent;
  12 class QResizeEvent;
  13
  14 class CorrelationMeter : public QWidget
  15 {
  16         Q_OBJECT
  17
  18 public:
  19         CorrelationMeter(QWidget *parent);
  20
  21         void set_correlation(float correlation) {
  22                 std::lock_guard<std::mutex> lock(correlation_mutex);
  23                 this->correlation = correlation;
  24                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  25         }
  26
  27 private:
  28         void resizeEvent(QResizeEvent *event) override;
  29         void paintEvent(QPaintEvent *event) override;
  30
  31         std::mutex correlation_mutex;
  32         float correlation = 0.0f;
  33
  34         QPixmap on_pixmap, off_pixmap;
  35 };
  36
  37 #endif