Function agg2RenderGlyphs

mapagg.cpp:278–349

}

int agg2RenderGlyphs(imageObj *img, double x, double y, labelStyleObj *style, char *text) {
   AGG2Renderer *r = AGG_RENDERER(img);
   aggRendererCache *cache = (aggRendererCache*)MS_RENDERER_CACHE(MS_IMAGE_RENDERER(img));
   if (!cache->m_feng.load_font(style->font, 0, mapserver::glyph_ren_outline)) {
      msSetError(MS_TTFERR, "AGG error loading font (%s)", "agg2RenderGlyphs()", style->font);
      return MS_FAILURE;
   }
   r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

   const mapserver::glyph_cache* glyph;
   int unicode;
   //cache->m_feng.hinting(true);
   cache->m_feng.height(style->size);
   cache->m_feng.resolution(96);
   cache->m_feng.flip_y(true);
   font_curve_type m_curves(cache->m_fman.path_adaptor());
   mapserver::trans_affine mtx;
   mtx *= mapserver::trans_affine_translation(-x, -y);
   /*agg angles are antitrigonometric*/
   mtx *= mapserver::trans_affine_rotation(-style->rotation);
   mtx *= mapserver::trans_affine_translation(x, y);

   double fx = x, fy = y;
   const char *utfptr = text;
   mapserver::path_storage glyphs;

   //first render all the glyphs to a path
   while (*utfptr) {
      if (*utfptr == '\r') {
         fx = x;
         utfptr++;
         continue;
      }
      if (*utfptr == '\n') {
         fx = x;
         fy += ceil(style->size * AGG_LINESPACE);
         utfptr++;
         continue;
      }
      utfptr += msUTF8ToUniChar(utfptr, &unicode);
      glyph = cache->m_fman.glyph(unicode);
      ;
      if (glyph) {
         //cache->m_fman.add_kerning(&fx, &fy);
    	 cache->m_fman.init_embedded_adaptors(glyph, fx, fy);
         mapserver::conv_transform<font_curve_type, mapserver::trans_affine> trans_c(m_curves, mtx);
         glyphs.concat_path(trans_c);
         fx += glyph->advance_x;
         fy += glyph->advance_y;
      }
   }
   
   if (style->outlinewidth) {
      r->m_rasterizer_aa.reset();
      r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);
      mapserver::conv_contour<mapserver::path_storage> cc(glyphs);
      cc.width(style->outlinewidth + 1);
      r->m_rasterizer_aa.add_path(cc);