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comparison src/txt-eng-ft.cc @ 11455:2be9e22796d2

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improvements in text-extent calculation
author Konstantinos Poulios <logari81@googlemail.com>
date Thu, 06 Jan 2011 20:46:03 +0100
parents f88e3d5d88e2
children fd0a3ac60b0e
comparison
equal deleted inserted replaced
11454:d7a964a5c57c 11455:2be9e22796d2
201 if (face) 201 if (face)
202 FT_Done_Face (face); 202 FT_Done_Face (face);
203 } 203 }
204 204
205 void 205 void
206 ft_render::set_font (const base_properties& props) 206 ft_render::set_font (const std::string& name, const std::string& weight,
207 const std::string& angle, double size)
207 { 208 {
208 if (face) 209 if (face)
209 FT_Done_Face (face); 210 FT_Done_Face (face);
210 211
211 // FIXME: take "fontunits" into account 212 // FIXME: take "fontunits" into account
212 double font_size = props.get ("fontsize").double_value (); 213 face = ft_manager::get_font (name, weight, angle, size);
213
214 face = ft_manager::get_font (props.get ("fontname").string_value (),
215 props.get ("fontweight").string_value (),
216 props.get ("fontangle").string_value (),
217 font_size);
218 214
219 if (face) 215 if (face)
220 { 216 {
221 if (FT_Set_Char_Size (face, 0, font_size*64, 0, 0)) 217 if (FT_Set_Char_Size (face, 0, size*64, 0, 0))
222 ::warning ("ft_render: unable to set font size to %d", font_size); 218 ::warning ("ft_render: unable to set font size to %d", size);
223 } 219 }
224 else 220 else
225 ::warning ("ft_render: unable to load appropriate font"); 221 ::warning ("ft_render: unable to load appropriate font");
226 } 222 }
227 223
480 return ROTATION_270; 476 return ROTATION_270;
481 else 477 else
482 return ROTATION_0; 478 return ROTATION_0;
483 } 479 }
484 480
481 void
482 ft_render::text_to_pixels (const std::string& txt,
483 uint8NDArray& pixels_, Matrix& box,
484 int halign, int valign, double rotation)
485 {
486 // FIXME: clip "rotation" between 0 and 360
487 int rot_mode = rotation_to_mode (rotation);
488
489 text_element *elt = text_parser_none ().parse (txt);
490 pixels_ = render (elt, box, rot_mode);
491 delete elt;
492
493 if (pixels_.numel () == 0)
494 {
495 // nothing to render
496 return;
497 }
498
499 switch (halign)
500 {
501 default: box(0) = 0; break;
502 case 1: box(0) = -box(2)/2; break;
503 case 2: box(0) = -box(2); break;
504 }
505 switch (valign)
506 {
507 default: box(1) = 0; break;
508 case 1: box(1) = -box(3)/2; break;
509 case 2: box(1) = -box(3); break;
510 case 3: break;
511 }
512
513 switch (rot_mode)
514 {
515 case ROTATION_90:
516 std::swap (box(0), box(1));
517 std::swap (box(2), box(3));
518 box(0) = -box(0)-box(2);
519 break;
520 case ROTATION_180:
521 box(0) = -box(0)-box(2);
522 box(1) = -box(1)-box(3);
523 break;
524 case ROTATION_270:
525 std::swap (box(0), box(1));
526 std::swap (box(2), box(3));
527 box(1) = -box(1)-box(3);
528 break;
529 }
530 }
531
485 #endif // HAVE_FREETYPE 532 #endif // HAVE_FREETYPE