Fixes https://github.com/harfbuzz/harfbuzz/pull/1432pull/1839/head
Ebrahim Byagowi
6 years ago
committed by
Behdad Esfahbod
parent
ed67efcc8c
commit
87e628436e
15 changed files with 467 additions and 36 deletions
@ -0,0 +1,94 @@ |
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/*
|
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* Copyright © 2018 Ebrahim Byagowi |
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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 |
||||
* 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 |
||||
* 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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#include "hb.hh" |
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#include "hb-ot-gasp-table.hh" // Just so we compile it; unused otherwise. |
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#include "hb-ot-os2-table.hh" |
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#include "hb-ot-post-table.hh" |
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#include "hb-ot-hmtx-table.hh" |
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#include "hb-ot-var-mvar-table.hh" |
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#include "hb-ot-metrics.hh" |
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#include "hb-ot-face.hh" |
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#if 0 |
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static bool |
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_get_gasp (hb_face_t *face, float *result, hb_ot_metrics_t metrics_tag) |
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{ |
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const OT::GaspRange& range = face->table.gasp->get_gasp_range (metrics_tag - HB_TAG ('g','s','p','0')); |
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if (&range == &Null (OT::GaspRange)) return false; |
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if (result) *result = range.rangeMaxPPEM + face->table.MVAR->get_var (metrics_tag, nullptr, 0); |
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return true; |
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} |
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#endif |
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bool |
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hb_ot_metrics_get_position_internal (hb_face_t *face, |
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hb_ot_metrics_t metrics_tag, |
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float *position /* OUT. May be NULL. */) |
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{ |
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switch (metrics_tag) |
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{ |
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#define GET_METRIC(TABLE, ATTR) \ |
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(face->table.TABLE->has_data () && \
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(position && (*position = face->table.TABLE->ATTR + face->table.MVAR->get_var (metrics_tag, nullptr, 0)), true)) |
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case HB_OT_METRICS_HORIZONTAL_ASCENDER: |
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return (face->table.OS2->is_typo_metrics () ^ GET_METRIC (hhea, ascender)) || |
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GET_METRIC (OS2, sTypoAscender); |
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case HB_OT_METRICS_HORIZONTAL_DESCENDER: |
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return (face->table.OS2->is_typo_metrics () ^ GET_METRIC (hhea, descender)) || |
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GET_METRIC (OS2, sTypoDescender); |
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case HB_OT_METRICS_HORIZONTAL_LINE_GAP: |
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return (face->table.OS2->is_typo_metrics () ^ GET_METRIC (hhea, lineGap)) || |
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GET_METRIC (OS2, sTypoLineGap); |
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case HB_OT_METRICS_HORIZONTAL_CLIPPING_ASCENT: return GET_METRIC (OS2, usWinAscent); |
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case HB_OT_METRICS_HORIZONTAL_CLIPPING_DESCENT: return GET_METRIC (OS2, usWinDescent); |
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case HB_OT_METRICS_VERTICAL_ASCENDER: return GET_METRIC (vhea, ascender); |
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case HB_OT_METRICS_VERTICAL_DESCENDER: return GET_METRIC (vhea, descender); |
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case HB_OT_METRICS_VERTICAL_LINE_GAP: return GET_METRIC (vhea, lineGap); |
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case HB_OT_METRICS_HORIZONTAL_CARET_RISE: return GET_METRIC (hhea, caretSlopeRise); |
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case HB_OT_METRICS_HORIZONTAL_CARET_RUN: return GET_METRIC (hhea, caretSlopeRun); |
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case HB_OT_METRICS_HORIZONTAL_CARET_OFFSET: return GET_METRIC (hhea, caretOffset); |
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case HB_OT_METRICS_VERTICAL_CARET_RISE: return GET_METRIC (vhea, caretSlopeRise); |
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case HB_OT_METRICS_VERTICAL_CARET_RUN: return GET_METRIC (vhea, caretSlopeRun); |
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case HB_OT_METRICS_VERTICAL_CARET_OFFSET: return GET_METRIC (vhea, caretOffset); |
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case HB_OT_METRICS_X_HEIGHT: return GET_METRIC (OS2->v2 (), sxHeight); |
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case HB_OT_METRICS_CAP_HEIGHT: return GET_METRIC (OS2->v2 (), sCapHeight); |
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case HB_OT_METRICS_SUBSCRIPT_EM_X_SIZE: return GET_METRIC (OS2, ySubscriptXSize); |
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case HB_OT_METRICS_SUBSCRIPT_EM_Y_SIZE: return GET_METRIC (OS2, ySubscriptYSize); |
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case HB_OT_METRICS_SUBSCRIPT_EM_X_OFFSET: return GET_METRIC (OS2, ySubscriptXOffset); |
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case HB_OT_METRICS_SUBSCRIPT_EM_Y_OFFSET: return GET_METRIC (OS2, ySubscriptYOffset); |
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case HB_OT_METRICS_SUPERSCRIPT_EM_X_SIZE: return GET_METRIC (OS2, ySuperscriptXSize); |
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case HB_OT_METRICS_SUPERSCRIPT_EM_Y_SIZE: return GET_METRIC (OS2, ySuperscriptYSize); |
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case HB_OT_METRICS_SUPERSCRIPT_EM_X_OFFSET: return GET_METRIC (OS2, ySuperscriptXOffset); |
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case HB_OT_METRICS_SUPERSCRIPT_EM_Y_OFFSET: return GET_METRIC (OS2, ySuperscriptYOffset); |
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case HB_OT_METRICS_STRIKEOUT_SIZE: return GET_METRIC (OS2, yStrikeoutSize); |
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case HB_OT_METRICS_STRIKEOUT_OFFSET: return GET_METRIC (OS2, yStrikeoutPosition); |
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case HB_OT_METRICS_UNDERLINE_SIZE: return GET_METRIC (post->table, underlineThickness); |
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case HB_OT_METRICS_UNDERLINE_OFFSET: return GET_METRIC (post->table, underlinePosition); |
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#undef GET_METRIC |
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default: return false; |
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} |
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} |
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@ -0,0 +1,135 @@ |
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/*
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* Copyright © 2018 Ebrahim Byagowi |
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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 |
||||
* software and its documentation for any purpose, provided that the |
||||
* 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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#include "hb.hh" |
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#include "hb-ot-metrics.hh" |
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#include "hb-ot-var-mvar-table.hh" |
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#include "hb-ot-face.hh" |
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/**
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* hb_ot_metrics_get_position: |
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* @font: |
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* @metrics_tag: |
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* @position: (out) (optional): |
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* |
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* Returns: Whether found the requested metrics |
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* |
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* Since: REPLACEME |
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**/ |
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hb_bool_t |
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hb_ot_metrics_get_position (hb_font_t *font, |
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hb_ot_metrics_t metrics_tag, |
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hb_position_t *position /* OUT. May be NULL. */) |
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{ |
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switch (metrics_tag) |
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{ |
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case HB_OT_METRICS_HORIZONTAL_ASCENDER: |
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case HB_OT_METRICS_HORIZONTAL_DESCENDER: |
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case HB_OT_METRICS_HORIZONTAL_LINE_GAP: |
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case HB_OT_METRICS_HORIZONTAL_CLIPPING_ASCENT: |
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case HB_OT_METRICS_HORIZONTAL_CLIPPING_DESCENT: |
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case HB_OT_METRICS_HORIZONTAL_CARET_RISE: |
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case HB_OT_METRICS_VERTICAL_CARET_RUN: |
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case HB_OT_METRICS_VERTICAL_CARET_OFFSET: |
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case HB_OT_METRICS_X_HEIGHT: |
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case HB_OT_METRICS_CAP_HEIGHT: |
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case HB_OT_METRICS_SUBSCRIPT_EM_Y_SIZE: |
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case HB_OT_METRICS_SUBSCRIPT_EM_Y_OFFSET: |
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case HB_OT_METRICS_SUPERSCRIPT_EM_Y_SIZE: |
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case HB_OT_METRICS_SUPERSCRIPT_EM_Y_OFFSET: |
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case HB_OT_METRICS_STRIKEOUT_SIZE: |
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case HB_OT_METRICS_STRIKEOUT_OFFSET: |
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case HB_OT_METRICS_UNDERLINE_SIZE: |
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case HB_OT_METRICS_UNDERLINE_OFFSET: { |
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float value; |
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bool result = hb_ot_metrics_get_position_internal (font->face, metrics_tag, &value); |
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if (result && position) *position = font->em_scalef_y (value); |
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return result; |
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} |
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case HB_OT_METRICS_VERTICAL_ASCENDER: |
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case HB_OT_METRICS_VERTICAL_DESCENDER: |
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case HB_OT_METRICS_VERTICAL_LINE_GAP: |
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case HB_OT_METRICS_HORIZONTAL_CARET_RUN: |
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case HB_OT_METRICS_HORIZONTAL_CARET_OFFSET: |
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case HB_OT_METRICS_VERTICAL_CARET_RISE: |
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case HB_OT_METRICS_SUBSCRIPT_EM_X_SIZE: |
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case HB_OT_METRICS_SUBSCRIPT_EM_X_OFFSET: |
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case HB_OT_METRICS_SUPERSCRIPT_EM_X_SIZE: |
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case HB_OT_METRICS_SUPERSCRIPT_EM_X_OFFSET: { |
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float value; |
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bool result = hb_ot_metrics_get_position_internal (font->face, metrics_tag, &value); |
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if (result && position) *position = font->em_scalef_x (value); |
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return result; |
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} |
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default: |
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return false; |
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} |
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} |
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/**
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* hb_ot_metrics_get_variation: |
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* @face: |
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* @metrics_tag: |
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* |
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* Returns: |
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* |
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* Since: REPLACEME |
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**/ |
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float |
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hb_ot_metrics_get_variation (hb_face_t *face, hb_ot_metrics_t metrics_tag) |
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{ |
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return face->table.MVAR->get_var (metrics_tag, nullptr, 0); |
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} |
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/**
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* hb_ot_metrics_get_x_variation: |
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* @font: |
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* @metrics_tag: |
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* |
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* Returns: |
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* |
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* Since: REPLACEME |
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**/ |
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hb_position_t |
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hb_ot_metrics_get_x_variation (hb_font_t *font, hb_ot_metrics_t metrics_tag) |
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{ |
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return font->em_scalef_x (hb_ot_metrics_get_variation (font->face, metrics_tag)); |
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} |
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/**
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* hb_ot_metrics_get_y_variation: |
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* @font: |
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* @metrics_tag: |
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* |
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* Returns: |
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* |
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* Since: REPLACEME |
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**/ |
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hb_position_t |
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hb_ot_metrics_get_y_variation (hb_font_t *font, hb_ot_metrics_t metrics_tag) |
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{ |
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return font->em_scalef_y (hb_ot_metrics_get_variation (font->face, metrics_tag)); |
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} |
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@ -0,0 +1,92 @@ |
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/*
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* Copyright © 2018 Ebrahim Byagowi |
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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 |
||||
* license or royalty fees, to use, copy, modify, and distribute this |
||||
* software and its documentation for any purpose, provided that the |
||||
* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
||||
* |
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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 |
||||
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||
* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
||||
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
||||
* 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_OT_H_IN |
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#error "Include <hb-ot.h> instead." |
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#endif |
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#ifndef HB_OT_METRICS_H |
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#define HB_OT_METRICS_H |
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#include "hb.h" |
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#include "hb-ot-name.h" |
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HB_BEGIN_DECLS |
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/**
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* hb_ot_metrics_t: |
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* |
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* From https://docs.microsoft.com/en-us/typography/opentype/spec/mvar#value-tags
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* |
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* Since: REPLACEME |
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**/ |
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typedef enum { |
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HB_OT_METRICS_HORIZONTAL_ASCENDER = HB_TAG ('h','a','s','c'), |
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HB_OT_METRICS_HORIZONTAL_DESCENDER = HB_TAG ('h','d','s','c'), |
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HB_OT_METRICS_HORIZONTAL_LINE_GAP = HB_TAG ('h','l','g','p'), |
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HB_OT_METRICS_HORIZONTAL_CLIPPING_ASCENT = HB_TAG ('h','c','l','a'), |
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HB_OT_METRICS_HORIZONTAL_CLIPPING_DESCENT = HB_TAG ('h','c','l','d'), |
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HB_OT_METRICS_VERTICAL_ASCENDER = HB_TAG ('v','a','s','c'), |
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HB_OT_METRICS_VERTICAL_DESCENDER = HB_TAG ('v','d','s','c'), |
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HB_OT_METRICS_VERTICAL_LINE_GAP = HB_TAG ('v','l','g','p'), |
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HB_OT_METRICS_HORIZONTAL_CARET_RISE = HB_TAG ('h','c','r','s'), |
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HB_OT_METRICS_HORIZONTAL_CARET_RUN = HB_TAG ('h','c','r','n'), |
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HB_OT_METRICS_HORIZONTAL_CARET_OFFSET = HB_TAG ('h','c','o','f'), |
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HB_OT_METRICS_VERTICAL_CARET_RISE = HB_TAG ('v','c','r','s'), |
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HB_OT_METRICS_VERTICAL_CARET_RUN = HB_TAG ('v','c','r','n'), |
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HB_OT_METRICS_VERTICAL_CARET_OFFSET = HB_TAG ('v','c','o','f'), |
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HB_OT_METRICS_X_HEIGHT = HB_TAG ('x','h','g','t'), |
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HB_OT_METRICS_CAP_HEIGHT = HB_TAG ('c','p','h','t'), |
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HB_OT_METRICS_SUBSCRIPT_EM_X_SIZE = HB_TAG ('s','b','x','s'), |
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HB_OT_METRICS_SUBSCRIPT_EM_Y_SIZE = HB_TAG ('s','b','y','s'), |
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HB_OT_METRICS_SUBSCRIPT_EM_X_OFFSET = HB_TAG ('s','b','x','o'), |
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HB_OT_METRICS_SUBSCRIPT_EM_Y_OFFSET = HB_TAG ('s','b','y','o'), |
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HB_OT_METRICS_SUPERSCRIPT_EM_X_SIZE = HB_TAG ('s','p','x','s'), |
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HB_OT_METRICS_SUPERSCRIPT_EM_Y_SIZE = HB_TAG ('s','p','y','s'), |
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HB_OT_METRICS_SUPERSCRIPT_EM_X_OFFSET = HB_TAG ('s','p','x','o'), |
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HB_OT_METRICS_SUPERSCRIPT_EM_Y_OFFSET = HB_TAG ('s','p','y','o'), |
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HB_OT_METRICS_STRIKEOUT_SIZE = HB_TAG ('s','t','r','s'), |
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HB_OT_METRICS_STRIKEOUT_OFFSET = HB_TAG ('s','t','r','o'), |
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HB_OT_METRICS_UNDERLINE_SIZE = HB_TAG ('u','n','d','s'), |
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HB_OT_METRICS_UNDERLINE_OFFSET = HB_TAG ('u','n','d','o') |
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} hb_ot_metrics_t; |
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HB_EXTERN hb_bool_t |
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hb_ot_metrics_get_position (hb_font_t *font, |
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hb_ot_metrics_t metrics_tag, |
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hb_position_t *position /* OUT. May be NULL. */); |
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HB_EXTERN float |
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hb_ot_metrics_get_variation (hb_face_t *face, hb_ot_metrics_t metrics_tag); |
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HB_EXTERN hb_position_t |
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hb_ot_metrics_get_x_variation (hb_font_t *font, hb_ot_metrics_t metrics_tag); |
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HB_EXTERN hb_position_t |
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hb_ot_metrics_get_y_variation (hb_font_t *font, hb_ot_metrics_t metrics_tag); |
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HB_END_DECLS |
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#endif /* HB_OT_METRICS_H */ |
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@ -0,0 +1,35 @@ |
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/*
|
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* Copyright © 2018 Ebrahim Byagowi |
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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 |
||||
* license or royalty fees, to use, copy, modify, and distribute this |
||||
* software and its documentation for any purpose, provided that the |
||||
* above copyright notice and the following two paragraphs appear in |
||||
* all copies of this software. |
||||
* |
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
||||
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
||||
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||
* DAMAGE. |
||||
* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
||||
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
||||
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
||||
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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|
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#ifndef HB_OT_METRICS_HH |
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#define HB_OT_METRICS_HH |
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#include "hb.hh" |
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HB_INTERNAL bool |
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hb_ot_metrics_get_position_internal (hb_face_t *face, |
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hb_ot_metrics_t metrics_tag, |
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float *position /* OUT. May be NULL. */); |
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#endif /* HB_OT_METRICS_HH */ |
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@ -0,0 +1,54 @@ |
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/*
|
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* Copyright © 2018 Ebrahim Byagowi |
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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 |
||||
* license or royalty fees, to use, copy, modify, and distribute this |
||||
* software and its documentation for any purpose, provided that the |
||||
* above copyright notice and the following two paragraphs appear in |
||||
* all copies of this software. |
||||
* |
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
||||
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
||||
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||
* DAMAGE. |
||||
* |
||||
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
||||
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
||||
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
||||
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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|
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#include "hb-test.h" |
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|
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#include <hb-ot.h> |
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|
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#include <math.h> |
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/* Unit tests for hb-ot-metrics.h */ |
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static void |
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test_ot_metrics_get (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/cpal-v0.ttf"); |
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hb_font_t *font = hb_font_create (face); |
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hb_position_t value; |
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g_assert (hb_ot_metrics_get_position (font, HB_OT_METRICS_HORIZONTAL_ASCENDER, &value)); |
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g_assert_cmpint (value, ==, 1000); |
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g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_HORIZONTAL_ASCENDER), ==, 0); |
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g_assert_cmpint (hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_HORIZONTAL_ASCENDER), ==, 0); |
||||
// g_assert_cmpint ((int) hb_ot_metrics_get_variation (face, HB_OT_METRICS_HORIZONTAL_ASCENDER), ==, 0);
|
||||
hb_font_destroy (font); |
||||
hb_face_destroy (face); |
||||
} |
||||
|
||||
int |
||||
main (int argc, char **argv) |
||||
{ |
||||
hb_test_init (&argc, &argv); |
||||
hb_test_add (test_ot_metrics_get); |
||||
return hb_test_run (); |
||||
} |
||||
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Reference in new issue