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PDF draw widget (first part)

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Jakub Melka
2019-01-27 17:55:22 +01:00
parent 7631265ba4
commit d4087eae1a
10 changed files with 896 additions and 49 deletions
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27
PdfForQtLib/sources/pdfglobal.h
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@@ -105,14 +105,37 @@ struct PDFTranslationContext
};
constexpr PDFReal PDF_POINT_TO_INCH = 1.0 / 72.0;
constexpr PDFReal PDF_INT_TO_MM = 25.4;
constexpr PDFReal PDF_POINT_TO_MM = PDF_POINT_TO_INCH * PDF_INT_TO_MM;
constexpr PDFReal PDF_INCH_TO_MM = 25.4; // [mm / inch]
constexpr PDFReal PDF_POINT_TO_MM = PDF_POINT_TO_INCH * PDF_INCH_TO_MM;
/// This is default "DPI", but in milimeters, so the name is DPMM (device pixel per milimeter)
constexpr PDFReal PDF_DEFAULT_DPMM = 96.0 / PDF_INCH_TO_MM;
constexpr PDFReal convertPDFPointToMM(PDFReal point)
{
return point * PDF_POINT_TO_MM;
}
class PDFBoolGuard final
{
public:
inline explicit PDFBoolGuard(bool& value) :
m_value(value),
m_oldValue(value)
{
m_value = true;
}
inline ~PDFBoolGuard()
{
m_value = m_oldValue;
}
private:
bool& m_value;
bool m_oldValue;
};
} // namespace pdf
#endif // PDFGLOBAL_H