Add null checks for timebase in TimeScaledObject and fix background color assignment in ViewerDisplayWidget

2025-11-24 10:33:38 +08:00
parent 2c4d235da6
commit f317e0e173
3 changed files with 14 additions and 1 deletions
@@ -58,6 +58,9 @@ const double &TimeScaledObject::timebase_dbl() const
 rational TimeScaledObject::SceneToTime(const double &x, const double &x_scale,
 									   const rational &timebase, bool round)
 {
+	if (timebase.isNull()) {
+		return rational();
+	}
 	double unscaled_time = x / x_scale / timebase.toDouble();

 	// Adjust screen point by scale and timebase
@@ -87,16 +90,25 @@ rational TimeScaledObject::SceneToTimeNoGrid(const double &x,

 double TimeScaledObject::TimeToScene(const rational &time) const
 {
+	if (timebase_.isNull()) {
+		return 0.0;
+	}
 	return time.toDouble() * scale_;
 }

 rational TimeScaledObject::SceneToTime(const double &x, bool round) const
 {
+	if (timebase_.isNull()) {
+		return rational();
+	}
 	return SceneToTime(x, scale_, timebase_, round);
 }

 rational TimeScaledObject::SceneToTimeNoGrid(const double &x) const
 {
+	if (timebase_.isNull()) {
+		return rational::fromDouble(x / scale_);
+	}
 	return SceneToTimeNoGrid(x, scale_);
 }