+void DecodeSignal::draw_error(QPainter &p, const QString &message,
+ int left, int right)
+{
+ const int y = get_y();
+
+ p.setPen(ErrorBgColour.darker());
+ p.setBrush(ErrorBgColour);
+
+ const QRectF bounding_rect =
+ QRectF(left, INT_MIN / 2 + y, right - left, INT_MAX);
+ const QRectF text_rect = p.boundingRect(bounding_rect,
+ Qt::AlignCenter, message);
+ const float r = text_rect.height() / 4;
+
+ p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r,
+ Qt::AbsoluteSize);
+
+ p.setPen(get_text_colour());
+ p.drawText(text_rect, message);
+}
+