C++ (Cpp) GetMaximumValue Examples

Example #1

File: nsXULFormControlAccessible.cpp Project: LittleForker/mozilla-central

NS_IMETHODIMP
nsXULProgressMeterAccessible::GetValue(nsAString& aValue)
{
  nsresult rv = nsFormControlAccessible::GetValue(aValue);
  NS_ENSURE_SUCCESS(rv, rv);

  if (!aValue.IsEmpty())
    return NS_OK;

  double maxValue = 0;
  rv = GetMaximumValue(&maxValue);
  NS_ENSURE_SUCCESS(rv, rv);

  if (maxValue != 1) {
    double curValue = 0;
    rv = GetCurrentValue(&curValue);
    NS_ENSURE_SUCCESS(rv, rv);

    double percentValue = (curValue / maxValue) * 100;
    nsAutoString value;
    value.AppendFloat(percentValue); // AppendFloat isn't available on nsAString
    value.AppendLiteral("%");
    aValue = value;
    return NS_OK;
  }

  mContent->GetAttr(kNameSpaceID_None, nsAccessibilityAtoms::value, aValue);
  if (aValue.IsEmpty())
    aValue.AppendLiteral("0");  // Empty value for progress meter = 0%

  aValue.AppendLiteral("%");
  return NS_OK;
}

Example #2

File: nsFormControlAccessible.cpp Project: anuragbhatnagar/mozilla-central

NS_IMETHODIMP
ProgressMeterAccessible<Max>::GetValue(nsAString& aValue)
{
  nsresult rv = nsFormControlAccessible::GetValue(aValue);
  NS_ENSURE_SUCCESS(rv, rv);

  if (!aValue.IsEmpty())
    return NS_OK;

  double maxValue = 0;
  rv = GetMaximumValue(&maxValue);
  NS_ENSURE_SUCCESS(rv, rv);

  double curValue = 0;
  rv = GetCurrentValue(&curValue);
  NS_ENSURE_SUCCESS(rv, rv);

  // Treat the current value bigger than maximum as 100%.
  double percentValue = (curValue < maxValue) ?
    (curValue / maxValue) * 100 : 100;

  nsAutoString value;
  value.AppendFloat(percentValue); // AppendFloat isn't available on nsAString
  value.AppendLiteral("%");
  aValue = value;
  return NS_OK;
}