Hi,
I am having difficulty getting PDF rendering to work.
I am trying the simple example from the WPdfRenderer
documentation (exact code below).
When I run it, I don't get any errors and a PDF file
is generated. The PDF file contains a line with red
background (good so far), but there is no text in it.
Upon closer examination, there is text that can be
selected on the line, but it's not visible, and when
copy/pasting into a text editor I get some Chinese
characters rather than "Hello, world!": 䡥汬漬⁷潲汤‡
I guess this is a font/encoding problem, but I'm not
sure how to further diagnose/debug it. Any ideas?
Some information that may be relevant:
- Wt version is 3.2.3
- OS is Ubuntu 10.04, 64-bit
- libharu version is 2.3.0 RC2
- to use WPdfRenderer I had to link to the following
additional libraries (besides libhpdf):
- libpango-1.0
- libpangoft2-1.0
- libpng
Thanks,
Nate
Code:
#include <iostream>
#include <Wt/Render/WPdfRenderer>
#include "hpdf.h"
void error_handler(HPDF_STATUS error_no, HPDF_STATUS detail_no, void*)
{
std::cout << "HPDF error: " << error_no << ", detail: " << detail_no <<
'\n';
std::exit(1);
}
int main()
{
HPDF_Doc pdf = HPDF_New(error_handler, 0);
HPDF_UseUTFEncodings(pdf); // enables UTF-8 encoding with true type fonts
HPDF_Page page = HPDF_AddPage(pdf);
HPDF_Page_SetSize(page, HPDF_PAGE_SIZE_A4, HPDF_PAGE_PORTRAIT);
Wt::Render::WPdfRenderer renderer(pdf, page);
renderer.setMargin(2.54);
renderer.setDpi(96);
renderer.render("<p style=\"background-color: #c11\">Hello, world !</p>");
HPDF_SaveToFile(pdf, "hello.pdf");
HPDF_Free(pdf);
}
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