/**
* Run the Color Contrast calculation on the image.
*/
internal IColorContrastResult RunColorContrastCalculationV1()
{
ColorContrastResult result = null;
ColorContrastRunner runner = new ColorContrastRunner(_colorContrastConfig);
Color previousColor = null;
foreach (var pixel in GetBinaryRowSearchIterator())
{
if (IsNewRow(pixel))
{
runner.OnRowBegin();
}
runner.OnPixel(pixel.Color, previousColor);
previousColor = pixel.Color;
if (IsEndOfRow(pixel))
{
var newResult = runner.OnRowEnd();
if (result == null)
{
result = newResult;
}
// Save newResult if it's higher confidence than the current result.
// newResult.Confidence is guaranteed to be either High, Mid, or Low
if (newResult.Confidence == Confidence.High)
{
result = newResult;
break;
}
else if (newResult.Confidence == Confidence.Mid)
{
// The analyzer claims that this condition is always false, but testing
// proves that we definitely execute the code inside the if block.
#pragma warning disable CA1508 // Avoid dead conditional code
if (result.Confidence != Confidence.Mid)
#pragma warning restore CA1508 // Avoid dead conditional code
{
result = newResult;
}
}
}
}
return(result);
}
/**
* Run the Color Contrast calculation on the image.
*/
public ColorContrastResult RunColorContrastCalculation()
{
ColorContrastResult result = null;
ColorContrastRunner runner = new ColorContrastRunner(_colorContrastConfig);
Color previousColor = null;
foreach (var pixel in GetBinaryRowSearchIterator())
{
if (IsNewRow(pixel))
{
runner.OnRowBegin();
}
runner.OnPixel(pixel.Color, previousColor);
previousColor = pixel.Color;
if (IsEndOfRow(pixel))
{
var newResult = runner.OnRowEnd();
if (result == null)
{
result = newResult;
}
if (newResult.ConfidenceValue() == ColorContrastResult.Confidence.High)
{
result = newResult;
break;
}
else if (newResult.ConfidenceValue() == ColorContrastResult.Confidence.Mid &&
result.ConfidenceValue() == ColorContrastResult.Confidence.Low)
{
result = newResult;
}
}
}
return(result);
}
