So I'm trying some small code to generate a pdf:
void User::render2pdf() {
Wt::WPdfImage pdfImage2("210mm", "297mm");
{
Wt::WPainter p(&pdfImage2);
p.setFont(Wt::WFont());
p.setPen(Wt::SolidLine);
p.drawLine(1,1,2,2);
p.drawText(0,0,20,20,{Wt::AlignCenter}, "Hello");
}
std::ofstream file("chart.pdf", std::ios::out | std::ios::binary);
pdfImage2.write(file);
It's dying on the WPainter creation line.
The error given is:
unknown location(0): fatal error in "UserRendertopdf": std::exception:
WPdfImage error: error_no=102B, detail_no=0
The Wt line where this happens is: wt/src/Wt/WPdfImage.C:316
font_ = HPDF_GetFont (pdf_, font_name, "UTF-8");
The reference for this func is:
http://libharu.org/wiki/Documentation/API/Document#HPDF_GetFont.28.29
The reference for the error code says "An Invalid encoding name is
specified." - http://libharu.org/wiki/Documentation/Error_handling
The "UTF-8" encoding is not listed in the libharu pages:
http://libharu.sourceforge.net/fonts.html
I grepped the libharu source for utf and couldn't find anything. It does
have a lot of stuff to do with unicode though.
Some older forum posts mentioned a plugin source file for UTF-8 but said
that it'll be included in future versions of libharu. We are now in those
future versions.
Any guidance or ideas appreciated.
Many Thanks,
Matthew Sherborne
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