Method applyAxisPadding

app/src/UI/Widgets/Plot.cpp:834–860

* @brief Selects the padding strategy for a [min, max] pair before rounding. */

 * @brief Selects the padding strategy for a [min, max] pair before rounding.
 */
void Widgets::Plot::applyAxisPadding(double& min, double& max, const bool addPadding)
{
  if (!std::isfinite(min) || !std::isfinite(max)) {
    min = 0;
    max = 1;
    return;
  }

  if (DSP::almostEqual(min, max) && DSP::isZero(min)) {
    min = -1;
    max = 1;
    return;
  }

  if (DSP::almostEqual(min, max)) {
    const double absValue = qAbs(min);
    min                   = min - absValue * 0.1;
    max                   = max + absValue * 0.1;
    return;
  }

  if (addPadding) {
    double range  = max - min;
    min          -= range * 0.1;
    max          += range * 0.1;
  }
}