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