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Display of ink coverage

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This commit is contained in:
Jakub Melka
2021-04-02 20:20:53 +02:00
parent 63376400da
commit 4921b61cf9
6 changed files with 141 additions and 0 deletions
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56
Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewwidget.cpp
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@ -57,6 +57,7 @@ void OutputPreviewWidget::clear()
m_inkCoverageMM.dirty();
m_alarmCoverageImage.dirty();
m_alarmRichBlackImage.dirty();
m_inkCoverageImage.dirty();
update();
}
@ -78,6 +79,7 @@ void OutputPreviewWidget::setPageImage(QImage image, pdf::PDFFloatBitmapWithColo
m_inkCoverageMM.dirty();
m_alarmCoverageImage.dirty();
m_alarmRichBlackImage.dirty();
m_inkCoverageImage.dirty();
buildInfoBoxItems();
update();
@ -135,7 +137,15 @@ void OutputPreviewWidget::paintEvent(QPaintEvent* event)
}
case InkCoverage:
{
const InkCoverageInfo& image = getInkCoverageInfo();
if (!image.image.isNull())
{
painter.translate(0, (pageImageRect.height() - image.image.height()) / 2);
painter.drawImage(pageImageRect.topLeft(), image.image);
}
break;
}
default:
Q_ASSERT(false);
@ -490,6 +500,11 @@ const OutputPreviewWidget::AlarmImageInfo& OutputPreviewWidget::getAlarmRichBlac
return m_alarmRichBlackImage.get(this, &OutputPreviewWidget::getAlarmRichBlackImageImpl);
}
const OutputPreviewWidget::InkCoverageInfo& OutputPreviewWidget::getInkCoverageInfo() const
{
return m_inkCoverageImage.get(this, &OutputPreviewWidget::getInkCoverageInfoImpl);
}
std::vector<pdf::PDFColorComponent> OutputPreviewWidget::getInkCoverageImpl() const
{
std::vector<pdf::PDFColorComponent> result;
@ -611,6 +626,47 @@ OutputPreviewWidget::AlarmImageInfo OutputPreviewWidget::getAlarmRichBlackImageI
return alarmImage;
}
OutputPreviewWidget::InkCoverageInfo OutputPreviewWidget::getInkCoverageInfoImpl() const
{
InkCoverageInfo coverageInfo;
coverageInfo.minValue = 0.0f;
coverageInfo.maxValue = 1.0f;
pdf::PDFFloatBitmap inkCoverageBitmap = m_originalProcessBitmap.getInkCoverageBitmap();
int width = int(inkCoverageBitmap.getWidth());
int height = int(inkCoverageBitmap.getHeight());
if (width > 0 && height > 0)
{
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
pdf::PDFColorBuffer buffer = inkCoverageBitmap.getPixel(x, y);
const pdf::PDFColorComponent coverage = buffer[0];
coverageInfo.maxValue = qMax(coverage, coverageInfo.maxValue);
}
}
pdf::PDFColorScale colorScale(coverageInfo.minValue, coverageInfo.maxValue);
coverageInfo.image = QImage(width, height, QImage::Format_RGBX8888);
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
pdf::PDFColorBuffer buffer = inkCoverageBitmap.getPixel(x, y);
const pdf::PDFColorComponent coverage = buffer[0];
coverageInfo.image.setPixelColor(x, y, colorScale.map(coverage));
}
}
}
return coverageInfo;
}
pdf::PDFColorComponent OutputPreviewWidget::getRichBlackLimit() const
{
return m_richBlackLimit;