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Issue #113: Color | Custom (green/black) partially works in scanned PDF (1.3.6)

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Jakub Melka
2023-12-08 14:44:51 +01:00
parent 8db0ae80c3
commit 147a1ea586
2 changed files with 29 additions and 4 deletions
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28
Pdf4QtLibCore/sources/pdfcolorconvertor.cpp
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@@ -85,9 +85,11 @@ QColor PDFColorConvertor::convert(QColor color, bool background, bool foreground
}
const float lightness = color.lightnessF();
QColor hslColor = m_foregroundColor;
hslColor.setHslF(hslColor.hueF(), hslColor.saturationF(), lightness, color.alphaF());
return hslColor.toRgb();
QColor convertedColor = m_foregroundColor;
convertedColor.setRedF(convertedColor.redF() * lightness);
convertedColor.setGreenF(convertedColor.greenF() * lightness);
convertedColor.setBlueF(convertedColor.blueF() * lightness);
return convertedColor;
}
default:
@@ -136,7 +138,6 @@ QImage PDFColorConvertor::convert(QImage image) const
}
case Mode::HighContrast:
case Mode::CustomColors:
{
for (int row = 0; row < image.height(); ++row)
{
@@ -151,6 +152,25 @@ QImage PDFColorConvertor::convert(QImage image) const
return image;
}
case Mode::CustomColors:
{
for (int row = 0; row < image.height(); ++row)
{
for (int column = 0; column < image.width(); ++column)
{
QColor color = image.pixelColor(column, row);
const float lightness = 1.0f - color.lightnessF();
QColor convertedColor = m_foregroundColor;
convertedColor.setRedF(convertedColor.redF() * lightness);
convertedColor.setGreenF(convertedColor.greenF() * lightness);
convertedColor.setBlueF(convertedColor.blueF() * lightness);
image.setPixelColor(column, row, convertedColor);
}
}
return image;
}
default:
Q_ASSERT(false);
break;