71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
#ifndef OT_LAYOUT_GPOS_ANCHORFORMAT3_HH
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#define OT_LAYOUT_GPOS_ANCHORFORMAT3_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 AnchorFormat3
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{
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protected:
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HBUINT16 format; /* Format identifier--format = 3 */
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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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Offset16To<Device>
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xDeviceTable; /* Offset to Device table for X
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* coordinate-- from beginning of
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* Anchor table (may be NULL) */
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Offset16To<Device>
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yDeviceTable; /* Offset to Device table for Y
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* coordinate-- from beginning of
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* Anchor table (may be NULL) */
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public:
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DEFINE_SIZE_STATIC (10);
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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) && xDeviceTable.sanitize (c, this) && yDeviceTable.sanitize (c, this));
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}
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void get_anchor (hb_ot_apply_context_t *c, hb_codepoint_t glyph_id HB_UNUSED,
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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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*x = font->em_fscale_x (xCoordinate);
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*y = font->em_fscale_y (yCoordinate);
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if (font->x_ppem || font->num_coords)
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*x += (this+xDeviceTable).get_x_delta (font, c->var_store, c->var_store_cache);
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if (font->y_ppem || font->num_coords)
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*y += (this+yDeviceTable).get_y_delta (font, c->var_store, c->var_store_cache);
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}
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AnchorFormat3* copy (hb_serialize_context_t *c,
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const hb_map_t *layout_variation_idx_map) const
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{
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TRACE_SERIALIZE (this);
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if (!layout_variation_idx_map) return_trace (nullptr);
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auto *out = c->embed<AnchorFormat3> (this);
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if (unlikely (!out)) return_trace (nullptr);
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out->xDeviceTable.serialize_copy (c, xDeviceTable, this, 0, hb_serialize_context_t::Head, layout_variation_idx_map);
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out->yDeviceTable.serialize_copy (c, yDeviceTable, this, 0, hb_serialize_context_t::Head, layout_variation_idx_map);
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return_trace (out);
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}
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void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
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{
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(this+xDeviceTable).collect_variation_indices (c->layout_variation_indices);
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(this+yDeviceTable).collect_variation_indices (c->layout_variation_indices);
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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_ANCHORFORMAT3_HH
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