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[autofit] Support vertical stretching of tilde below base glyph. (1/2)

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* src/autofit/aflatin.c (af_latin_remove_tilde_points_from_edges,
  af_latin_stretch_tilde, af_latin_align_tilde): Rename to...
  (af_latin_remove_top_tilde_points_from_edges, af_latin_stretch_top_tilde,
  af_latin_align_top_tilde): ...this.
  Update all callers.
  (af_latin_hints_apply): Rename `is_tilde` to `is_top_tilde`.
This commit is contained in:
Werner Lemberg 2025-04-21 13:38:17 +02:00
parent 8d1f51565a
commit ec28f4880b
1 changed files with 15 additions and 15 deletions
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30
src/autofit/aflatin.c
View file

@ -2898,7 +2898,7 @@
/* Remove all segments containing points on the tilde contour. */
static void
af_latin_remove_tilde_points_from_edges( AF_GlyphHints hints )
af_latin_remove_top_tilde_points_from_edges( AF_GlyphHints hints )
{
FT_Int highest_contour = af_find_highest_contour( hints );
AF_Point first_point = hints->contours[highest_contour];
@ -2916,7 +2916,7 @@
static void
af_latin_stretch_tilde( AF_GlyphHints hints )
af_latin_stretch_top_tilde( AF_GlyphHints hints )
{
FT_Int highest_contour = af_find_highest_contour( hints );
AF_Point p = hints->contours[highest_contour];
@ -2947,7 +2947,7 @@
} while ( p != first_point );
FT_TRACE4(( "af_latin_stretch_tilde: min y: %ld, max y: %ld\n",
FT_TRACE4(( "af_latin_stretch_top_tilde: min y: %ld, max y: %ld\n",
min_y, max_y ));
height = max_y - min_y;
@ -3009,7 +3009,7 @@
if ( !measurement_taken )
min_measurement = 0;
FT_TRACE4(( "af_latin_stretch_tilde: min measurement %ld\n",
FT_TRACE4(( "af_latin_stretch_top_tilde: min measurement %ld\n",
min_measurement ));
/* To preserve the stretched shape we suppress any */
@ -3048,9 +3048,9 @@
/*
As part of `af_latin_stretch_tilde`, normally all points in the tilde
are marked as touched, so the existing grid fitting will leave the tilde
misaligned with the grid.
As part of `af_latin_stretch_top_tilde`, normally all points in the
tilde are marked as touched, so the existing grid fitting will leave the
tilde misaligned with the grid.
This function moves the tilde contour down to be grid-fitted. We assume
that if moving the tilde down would cause it to touch or overlap another
@ -3069,7 +3069,7 @@
grid-aligned.
*/
static void
af_latin_align_tilde( AF_GlyphHints hints )
af_latin_align_top_tilde( AF_GlyphHints hints )
{
FT_Int highest_contour = af_find_highest_contour( hints );
@ -4411,7 +4411,7 @@
{
const AF_ReverseMapEntry *entry;
FT_Bool is_tilde = FALSE;
FT_Bool is_top_tilde = FALSE;
entry = af_reverse_character_map_lookup( metrics->root.reverse_charmap,
@ -4423,15 +4423,15 @@
db_entry = af_adjustment_database_lookup( entry->codepoint );
if ( db_entry )
is_tilde = db_entry->flags & AF_ADJUST_TILDE_TOP;
is_top_tilde = db_entry->flags & AF_ADJUST_TILDE_TOP;
}
if ( is_tilde )
if ( is_top_tilde )
{
af_latin_trace_height( 10, hints );
af_latin_stretch_tilde( hints );
af_latin_stretch_top_tilde( hints );
af_latin_trace_height( 11, hints );
af_latin_align_tilde( hints );
af_latin_align_top_tilde( hints );
af_latin_trace_height( 12, hints );
}
@ -4440,8 +4440,8 @@
axis->width_count,
axis->widths,
AF_DIMENSION_VERT );
if ( is_tilde )
af_latin_remove_tilde_points_from_edges( hints );
if ( is_top_tilde )
af_latin_remove_top_tilde_points_from_edges( hints );
if ( error )
goto Exit;