84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
/*
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* Copyright © 2023 Behdad Esfahbod
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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#ifndef HB_OUTLINE_HH
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#define HB_OUTLINE_HH
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#include "hb.hh"
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#include "hb-draw.hh"
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struct hb_outline_point_t
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{
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enum class type_t
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{
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MOVE_TO,
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LINE_TO,
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QUADRATIC_TO,
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CUBIC_TO,
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};
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hb_outline_point_t (float x, float y, type_t type) :
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x (x), y (y), type (type) {}
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float x, y;
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type_t type;
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};
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struct hb_outline_vector_t
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{
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float normalize_len ()
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{
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float len = hypotf (x, y);
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if (len)
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{
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x /= len;
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y /= len;
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}
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return len;
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}
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float x, y;
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};
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struct hb_outline_t
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{
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void reset () { points.shrink (0, false); contours.resize (0); }
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HB_INTERNAL void replay (hb_draw_funcs_t *pen, void *pen_data) const;
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HB_INTERNAL float control_area () const;
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HB_INTERNAL void embolden (float x_strength, float y_strength,
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float x_shift, float y_shift);
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hb_vector_t<hb_outline_point_t> points;
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hb_vector_t<unsigned> contours;
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};
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HB_INTERNAL hb_draw_funcs_t *
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hb_outline_recording_pen_get_funcs ();
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#endif /* HB_OUTLINE_HH */
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