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Issue #165: Insert > Inline Text latency issues on Flatpak and Appimage packages

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This commit is contained in:
Jakub Melka
2024-09-01 13:39:49 +02:00
parent 30d2d8080f
commit 4359109157
5 changed files with 34 additions and 7 deletions
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26
Pdf4QtLibCore/sources/pdfimage.cpp
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@ -790,6 +790,32 @@ QImage PDFImage::getImage(const PDFCMS* cms,
return QImage();
}
bool PDFImage::canBeConvertedToMonochromatic(const QImage& image)
{
for (int y = 0; y < image.height(); ++y)
{
for (int x = 0; x < image.width(); ++x)
{
QRgb pixel = image.pixel(x, y);
int red = qRed(pixel);
int green = qGreen(pixel);
int blue = qBlue(pixel);
int alpha = qAlpha(pixel);
if (alpha != 255)
{
return false;
}
// Zkontrolujte, zda jsou kanály stejné (odstín šedi) a zda jsou pouze 0 (černá) nebo 255 (bílá)
if ((red != green || green != blue) || (red != 0 && red != 255)) {
return false;
}
}
}
return true;
}
OPJ_SIZE_T PDFJPEG2000ImageData::read(void* p_buffer, OPJ_SIZE_T p_nb_bytes, void* p_user_data)
{
PDFJPEG2000ImageData* data = reinterpret_cast<PDFJPEG2000ImageData*>(p_user_data);