Method render_text

src/laybasic/laybasic/layBitmap.cc:795–902

}

void
Bitmap::render_text (const lay::RenderText &text)
{
  if (text.font == db::DefaultFont) {

    const lay::FixedFont &ff = lay::FixedFont::get_font (m_font_resolution);

    //  count the lines and max. characters per line

    unsigned int lines = 1;
    for (const char *cp = text.text.c_str (); *cp; ) {
      if (tl::skip_newline (cp)) {
        ++lines;
      } else {
        ++cp;
      }
    }

    //  compute the actual top left position
    double y;
    if (text.valign == db::VAlignBottom || text.valign == db::NoVAlign) {
      y = text.b.bottom ();
      y += double (ff.line_height () * (lines - 1) + ff.height ());
    } else if (text.valign == db::VAlignCenter) {
      y = text.b.center ().y ();
      y += double ((ff.line_height () * (lines - 1) + ff.height ()) / 2);
    } else {
      y = text.b.top ();
    }

    //  start generating the characters

    const char *cp1 = text.text.c_str ();
    while (*cp1) {

      unsigned int length = 0;
      const char *cp = cp1; 
      while (*cp && !tl::is_newline (*cp)) {
        tl::utf32_from_utf8 (cp);
        ++length;
      }

      double xx;
      if (text.halign == db::HAlignRight) {
        xx = text.b.right ();
        xx -= double (ff.width () * length);
      } else if (text.halign == db::HAlignCenter) {
        xx = text.b.center ().x ();
        xx -= double (ff.width () * length / 2);
      } else {
        xx = text.b.left ();
      }
      xx -= 0.5;

      if (y > -0.5 && y < double (height () + ff.height () - 1) - 0.5) {

        while (cp1 != cp) {