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Finishing of document properties

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Jakub Melka
2019-12-22 16:33:50 +01:00
parent f48709c8c5
commit 1fafd3835c
8 changed files with 249 additions and 7 deletions
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27
PdfForQtViewer/pdfwidgetutils.cpp
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@ -17,6 +17,13 @@
#include "pdfwidgetutils.h"
#ifdef Q_OS_MAC
int qt_default_dpi_x() { return 72; }
int qt_default_dpi_y() { return 72; }
#else
int qt_default_dpi_x() { return 96; }
int qt_default_dpi_y() { return 96; }
#endif
namespace pdfviewer
{
@ -36,4 +43,24 @@ int PDFWidgetUtils::getPixelSize(QWidget* widget, pdf::PDFReal sizeMM)
}
}
int PDFWidgetUtils::scaleDPI_x(QWidget* widget, int unscaledSize)
{
const double logicalDPI_x = widget->logicalDpiX();
const double defaultDPI_x = qt_default_dpi_x();
return (logicalDPI_x / defaultDPI_x) * unscaledSize;
}
void PDFWidgetUtils::scaleWidget(QWidget* widget, QSize unscaledSize)
{
const double logicalDPI_x = widget->logicalDpiX();
const double logicalDPI_y = widget->logicalDpiY();
const double defaultDPI_x = qt_default_dpi_x();
const double defaultDPI_y = qt_default_dpi_y();
const int width = (logicalDPI_x / defaultDPI_x) * unscaledSize.width();
const int height = (logicalDPI_y / defaultDPI_y) * unscaledSize.height();
widget->resize(width, height);
}
} // namespace pdfviewer