Method drawLimits

YUViewLib/src/ui/views/PlotViewWidget.cpp:565–613

}

void PlotViewWidget::drawLimits(QPainter &painter) const
{
  const auto plotMin = this->convertPixelPosToPlotPos(this->plotRect.bottomLeft());
  const auto plotMax = this->convertPixelPosToPlotPos(this->plotRect.topRight());

  DEBUG_PLOT("PlotViewWidget::drawLimits");
  for (auto streamIndex : this->showStreamList)
  {
    const auto param = this->model->getStreamParameter(streamIndex);
    for (const auto &limit : param.limits)
    {
      // Only draw visible limits
      QLineF line;
      if (limit.axis == Axis::X)
      {
        if (limit.value < plotMin.x() || limit.value > plotMax.x())
          continue;
        const auto dummyPointForX = this->convertPlotPosToPixelPos(QPointF(limit.value, 0));
        line.setP1(QPointF(dummyPointForX.x(), 0));
        line.setP2(QPointF(dummyPointForX.x(), this->plotRect.height()));
      }
      else
      {
        if (limit.value < plotMin.y() || limit.value > plotMax.y())
          continue;
        const auto dummyPointForY = this->convertPlotPosToPixelPos(QPointF(0, limit.value));
        line.setP1(QPointF(0, dummyPointForY.y()));
        line.setP2(QPointF(this->plotRect.right(), dummyPointForY.y()));

        // Set the QRect where to show the text
        QFont        displayFont = painter.font();
        QFontMetrics metrics(displayFont);
        QSize        textSize = metrics.size(0, limit.name);

        QRect textRect;
        textRect.setSize(textSize);
        textRect.moveTop(dummyPointForY.y());
        textRect.moveRight(this->plotRect.right() - fadeBoxThickness);
        painter.setPen(Qt::black);
        painter.drawText(textRect, Qt::AlignCenter, limit.name);
      }

      QPen limitPen(Qt::black);
      limitPen.setWidth(2);
      painter.setPen(limitPen);
      painter.drawLine(line);
    }
  }
}

void PlotViewWidget::drawPlot(QPainter &painter) const
{