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#ifndef OT_LAYOUT_GPOS_ANCHORFORMAT2_HH
#define OT_LAYOUT_GPOS_ANCHORFORMAT2_HH
namespace OT {
namespace Layout {
namespace GPOS_impl {
struct AnchorFormat2
{
protected:
HBUINT16 format; /* Format identifier--format = 2 */
FWORD xCoordinate; /* Horizontal value--in design units */
FWORD yCoordinate; /* Vertical value--in design units */
HBUINT16 anchorPoint; /* Index to glyph contour point */
public:
DEFINE_SIZE_STATIC (8);
bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this));
}
void get_anchor (hb_ot_apply_context_t *c, hb_codepoint_t glyph_id,
float *x, float *y) const
{
hb_font_t *font = c->font;
#ifdef HB_NO_HINTING
*x = font->em_fscale_x (xCoordinate);
*y = font->em_fscale_y (yCoordinate);
return;
#endif
unsigned int x_ppem = font->x_ppem;
unsigned int y_ppem = font->y_ppem;
hb_position_t cx = 0, cy = 0;
bool ret;
ret = (x_ppem || y_ppem) &&
font->get_glyph_contour_point_for_origin (glyph_id, anchorPoint, HB_DIRECTION_LTR, &cx, &cy);
*x = ret && x_ppem ? cx : font->em_fscale_x (xCoordinate);
*y = ret && y_ppem ? cy : font->em_fscale_y (yCoordinate);
}
AnchorFormat2* copy (hb_serialize_context_t *c) const
{
TRACE_SERIALIZE (this);
return_trace (c->embed<AnchorFormat2> (this));
}
};
}
}
}
#endif // OT_LAYOUT_GPOS_ANCHORFORMAT2_HH
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