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Inverting colors feature

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This commit is contained in:
Jakub Melka
2020-01-28 19:17:45 +01:00
parent 0bc64494fd
commit e4effbc29a
10 changed files with 112 additions and 10 deletions
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47
PdfForQtLib/sources/pdfpainter.cpp
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@ -17,6 +17,7 @@
#include "pdfpainter.h"
#include "pdfpattern.h"
#include "pdfcms.h"
#include <QPainter>
@ -389,6 +390,20 @@ void PDFPainter::setCompositionMode(QPainter::CompositionMode mode)
m_painter->setCompositionMode(mode);
}
PDFPrecompiledPageGenerator::PDFPrecompiledPageGenerator(PDFPrecompiledPage* precompiledPage,
PDFRenderer::Features features,
const PDFPage* page,
const PDFDocument* document,
const PDFFontCache* fontCache,
const PDFCMS* cms,
const PDFOptionalContentActivity* optionalContentActivity,
const PDFMeshQualitySettings& meshQualitySettings) :
BaseClass(features, page, document, fontCache, cms, optionalContentActivity, QMatrix(), meshQualitySettings),
m_precompiledPage(precompiledPage)
{
m_precompiledPage->setPaperColor(cms->getPaperColor());
}
void PDFPrecompiledPageGenerator::performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule)
{
Q_ASSERT(stroke || fill);
@ -632,6 +647,38 @@ void PDFPrecompiledPage::optimize()
m_compositionModes.shrink_to_fit();
}
void PDFPrecompiledPage::invertColors()
{
// Jakub Melka: we must invert colors in following areas:
// - painter paths
// - images
// - meshes
for (PathPaintData& pathData : m_paths)
{
if (pathData.pen.style() != Qt::NoPen)
{
pathData.pen.setColor(invertColor(pathData.pen.color()));
}
if (pathData.brush.style() == Qt::SolidPattern)
{
pathData.brush.setColor(invertColor(pathData.brush.color()));
}
}
for (ImageData& imageData : m_images)
{
imageData.image.invertPixels(QImage::InvertRgb);
}
for (MeshPaintData& meshPaintData : m_meshes)
{
meshPaintData.mesh.invertColors();
}
m_paperColor = invertColor(m_paperColor);
}
void PDFPrecompiledPage::finalize(qint64 compilingTimeNS, QList<PDFRenderError> errors)
{
m_compilingTimeNS = compilingTimeNS;