rosapps/smartpdf/fitz/include/fitz/wld_text.h

   1 /*
   2  * Fitz display tree text node.
   3  *
   4  * The text node is an optimization to reference glyphs in a font resource
   5  * and specifying an individual transform matrix for each one.
   6  *
   7  * The trm field contains the a, b, c and d coefficients.
   8  * The e and f coefficients come from the individual elements,
   9  * together they form the transform matrix for the glyph.
  10  *
  11  * Glyphs are referenced by glyph ID.
  12  * The Unicode text equivalent is kept in a separate array
  13  * with indexes into the glyph array.
  14  *
  15
  16 TODO the unicode textels
  17
  18 struct fz_textgid_s { float e, f; int gid; };
  19 struct fz_textucs_s { int idx; int ucs; };
  20
  21  */
  22
  23 typedef struct fz_textel_s fz_textel;
  24
  25 struct fz_textel_s
  26 {
  27         float x, y;
  28         int cid;
  29 };
  30
  31 struct fz_textnode_s
  32 {
  33         fz_node super;
  34         fz_font *font;
  35         fz_matrix trm;
  36         int len, cap;
  37         fz_textel *els;
  38 };
  39
  40 fz_error *fz_newtextnode(fz_textnode **textp, fz_font *face);
  41 fz_error *fz_clonetextnode(fz_textnode **textp, fz_textnode *oldtext);
  42 fz_error *fz_addtext(fz_textnode *text, int g, float x, float y);
  43 fz_error *fz_endtext(fz_textnode *text);
  44