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Blend functions

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This commit is contained in:
Jakub Melka
2021-01-14 19:33:23 +01:00
parent ccb84401db
commit d3827cfcc4
8 changed files with 452 additions and 20 deletions
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75
Pdf4QtLib/sources/pdftransparencyrenderer.cpp
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@ -16,6 +16,7 @@
// along with Pdf4Qt. If not, see <https://www.gnu.org/licenses/>.
#include "pdftransparencyrenderer.h"
#include "pdfdocument.h"
namespace pdf
{
@ -41,7 +42,8 @@ PDFFloatBitmap::PDFFloatBitmap(size_t width, size_t height, PDFPixelFormat forma
PDFColorBuffer PDFFloatBitmap::getPixel(size_t x, size_t y)
{
s
const size_t index = getPixelIndex(x, y);
return PDFColorBuffer(m_data.data() + index, m_pixelSize);
}
const PDFColorComponent* PDFFloatBitmap::begin() const
@ -64,9 +66,78 @@ PDFColorComponent* PDFFloatBitmap::end()
return m_data.data() + m_data.size();
}
PDFTransparencyRenderer::PDFTransparencyRenderer()
size_t PDFFloatBitmap::getPixelIndex(size_t x, size_t y) const
{
return (y * m_width + x) * m_pixelSize;
}
PDFTransparencyRenderer::PDFTransparencyRenderer(const PDFPage* page,
const PDFDocument* document,
const PDFFontCache* fontCache,
const PDFCMS* cms,
const PDFOptionalContentActivity* optionalContentActivity,
QMatrix pagePointToDevicePointMatrix) :
BaseClass(page, document, fontCache, cms, optionalContentActivity, pagePointToDevicePointMatrix, PDFMeshQualitySettings()),
m_active(false)
{
}
void PDFTransparencyRenderer::setDeviceColorSpace(PDFColorSpacePointer colorSpace)
{
if (!colorSpace || colorSpace->isBlendColorSpace())
{
// Set device color space only, when it is a blend color space
m_deviceColorSpace = colorSpace;
}
}
void PDFTransparencyRenderer::beginPaint()
{
Q_ASSERT(!m_active);
m_active = true;
// Create page transparency group
PDFObject pageTransparencyGroupObject = getPage()->getTransparencyGroup(&getDocument()->getStorage());
PDFTransparencyGroup transparencyGroup = parseTransparencyGroup(pageTransparencyGroupObject);
transparencyGroup.isolated = true;
m_pageTransparencyGroupGuard.reset(new PDFTransparencyGroupGuard(this, qMove(transparencyGroup)));
}
const PDFFloatBitmap& PDFTransparencyRenderer::endPaint()
{
Q_ASSERT(m_active);
m_pageTransparencyGroupGuard.reset();
m_active = false;
}
void PDFTransparencyRenderer::performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule)
{
}
void PDFTransparencyRenderer::performClipping(const QPainterPath& path, Qt::FillRule fillRule)
{
}
void PDFTransparencyRenderer::performUpdateGraphicsState(const PDFPageContentProcessorState& state)
{
}
void PDFTransparencyRenderer::performSaveGraphicState(ProcessOrder order)
{
}
void PDFTransparencyRenderer::performRestoreGraphicState(ProcessOrder order)
{
}
void PDFTransparencyRenderer::performBeginTransparencyGroup(ProcessOrder order, const PDFTransparencyGroup& transparencyGroup)
{
}
void PDFTransparencyRenderer::performEndTransparencyGroup(ProcessOrder order, const PDFTransparencyGroup& transparencyGroup)
{
}
} // namespace pdf