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[kerx] Implement Format4 action_type=1 contour-point-based attachment 

Untested.

This concludes kerx table support!
This commit is contained in:
Behdad Esfahbod 2018-10-11 01:22:29 -04:00
parent b6bc0d4ff6
commit fbbd926dba
1 changed files with 16 additions and 1 deletions
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17
src/hb-aat-layout-kerx-table.hh
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@ -354,7 +354,22 @@ struct KerxSubTableFormat4
return false;
HB_UNUSED unsigned int markControlPoint = *data++;
HB_UNUSED unsigned int currControlPoint = *data++;
/* TODO */
hb_position_t markX = 0;
hb_position_t markY = 0;
hb_position_t currX = 0;
hb_position_t currY = 0;
if (!c->font->get_glyph_contour_point_for_origin (c->buffer->info[mark].codepoint,
markControlPoint,
HB_DIRECTION_LTR /*XXX*/,
&markX, &markY) ||
!c->font->get_glyph_contour_point_for_origin (c->buffer->cur ().codepoint,
currControlPoint,
HB_DIRECTION_LTR /*XXX*/,
&currX, &currY))
return true; /* True, such that the machine continues. */
o.x_offset = markX - currX;
o.y_offset = markY - currY;
}
break;