/* */
/* Auto-fitter hinting routines for latin script (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/***************************************************************************/
+#include FT_ADVANCES_H
+
#include "aflatin.h"
#include "aflatin2.h"
#include "aferrors.h"
af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
- error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+ error = af_glyph_hints_reload( hints, &face->glyph->outline );
if ( error )
goto Exit;
#define AF_LATIN_MAX_TEST_CHARACTERS 12
- static const char* const af_latin2_blue_chars[AF_LATIN_MAX_BLUES] =
+ static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
{
"THEZOCQS",
"HEZLOCUS",
* we couldn't find a single glyph to compute this blue zone,
* we will simply ignore it then
*/
- AF_LOG(( "empty!\n" ));
+ AF_LOG(( "empty\n" ));
continue;
}
}
+ FT_LOCAL_DEF( void )
+ af_latin2_metrics_check_digits( AF_LatinMetrics metrics,
+ FT_Face face )
+ {
+ FT_UInt i;
+ FT_Bool started = 0, same_width = 1;
+ FT_Fixed advance, old_advance = 0;
+
+
+ /* check whether all ASCII digits have the same advance width; */
+ /* digit `0' is 0x30 in all supported charmaps */
+ for ( i = 0x30; i <= 0x39; i++ )
+ {
+ FT_UInt glyph_index;
+
+
+ glyph_index = FT_Get_Char_Index( face, i );
+ if ( glyph_index == 0 )
+ continue;
+
+ if ( FT_Get_Advance( face, glyph_index,
+ FT_LOAD_NO_SCALE |
+ FT_LOAD_NO_HINTING |
+ FT_LOAD_IGNORE_TRANSFORM,
+ &advance ) )
+ continue;
+
+ if ( started )
+ {
+ if ( advance != old_advance )
+ {
+ same_width = 0;
+ break;
+ }
+ }
+ else
+ {
+ old_advance = advance;
+ started = 1;
+ }
+ }
+
+ metrics->root.digits_have_same_width = same_width;
+ }
+
+
FT_LOCAL_DEF( FT_Error )
af_latin2_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
/* For now, compute the standard width and height from the `o'. */
af_latin2_metrics_init_widths( metrics, face, 'o' );
af_latin2_metrics_init_blues( metrics, face );
+ af_latin2_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
FT_Pos fitted = ( scaled + 40 ) & ~63;
#if 1
- if ( scaled != fitted ) {
+ if ( scaled != fitted )
+ {
scale = FT_MulDiv( scale, fitted, scaled );
AF_LOG(( "== scaled x-top = %.2g fitted = %.2g, scaling = %.4g\n", scaled/64.0, fitted/64.0, (fitted*1.0)/scaled ));
}
}
}
}
+#if 0
+ }
+#endif
/* now, compute the `serif' segments */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
AF_AxisHints axis = &hints->axis[dim];
AF_Edge edges = axis->edges;
AF_Edge edge_limit = edges + axis->num_edges;
- FT_Int n_edges;
AF_Edge edge;
AF_Edge anchor = 0;
FT_Int has_serifs = 0;
/* We don't handle horizontal edges since we can't easily assure that */
/* the third (lowest) stem aligns with the base line; it might end up */
/* one pixel higher or lower. */
+
#if 0
- n_edges = edge_limit - edges;
- if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
{
- AF_Edge edge1, edge2, edge3;
- FT_Pos dist1, dist2, span, delta;
+ FT_Int n_edges = edge_limit - edges;
- if ( n_edges == 6 )
+ if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
{
- edge1 = edges;
- edge2 = edges + 2;
- edge3 = edges + 4;
- }
- else
- {
- edge1 = edges + 1;
- edge2 = edges + 5;
- edge3 = edges + 9;
- }
+ AF_Edge edge1, edge2, edge3;
+ FT_Pos dist1, dist2, span, delta;
- dist1 = edge2->opos - edge1->opos;
- dist2 = edge3->opos - edge2->opos;
- span = dist1 - dist2;
- if ( span < 0 )
- span = -span;
+ if ( n_edges == 6 )
+ {
+ edge1 = edges;
+ edge2 = edges + 2;
+ edge3 = edges + 4;
+ }
+ else
+ {
+ edge1 = edges + 1;
+ edge2 = edges + 5;
+ edge3 = edges + 9;
+ }
- if ( span < 8 )
- {
- delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
- edge3->pos -= delta;
- if ( edge3->link )
- edge3->link->pos -= delta;
+ dist1 = edge2->opos - edge1->opos;
+ dist2 = edge3->opos - edge2->opos;
+
+ span = dist1 - dist2;
+ if ( span < 0 )
+ span = -span;
- /* move the serifs along with the stem */
- if ( n_edges == 12 )
+ if ( span < 8 )
{
- ( edges + 8 )->pos -= delta;
- ( edges + 11 )->pos -= delta;
- }
+ delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
+ edge3->pos -= delta;
+ if ( edge3->link )
+ edge3->link->pos -= delta;
+
+ /* move the serifs along with the stem */
+ if ( n_edges == 12 )
+ {
+ ( edges + 8 )->pos -= delta;
+ ( edges + 11 )->pos -= delta;
+ }
- edge3->flags |= AF_EDGE_DONE;
- if ( edge3->link )
- edge3->link->flags |= AF_EDGE_DONE;
+ edge3->flags |= AF_EDGE_DONE;
+ if ( edge3->link )
+ edge3->link->flags |= AF_EDGE_DONE;
+ }
}
}
#endif
+
if ( has_serifs || !anchor )
{
/*
if ( before >= edges && before < edge &&
after < edge_limit && after > edge )
{
- edge->pos = before->pos +
+ if ( after->opos == before->opos )
+ edge->pos = before->pos;
+ else
+ edge->pos = before->pos +
FT_MulDiv( edge->opos - before->opos,
after->pos - before->pos,
after->opos - before->opos );
int dim;
- error = af_glyph_hints_reload( hints, outline, 1 );
+ error = af_glyph_hints_reload( hints, outline );
if ( error )
goto Exit;
static const AF_Script_UniRangeRec af_latin2_uniranges[] =
{
- { 32, 127 }, /* XXX: TODO: Add new Unicode ranges here! */
- { 160, 255 },
- { 0, 0 }
+ AF_UNIRANGE_REC( 32UL, 127UL ), /* XXX: TODO: Add new Unicode ranges here! */
+ AF_UNIRANGE_REC( 160UL, 255UL ),
+ AF_UNIRANGE_REC( 0UL, 0UL )
};
- FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
- af_latin2_script_class =
- {
+ AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class,
AF_SCRIPT_LATIN2,
af_latin2_uniranges,
(AF_Script_InitHintsFunc) af_latin2_hints_init,
(AF_Script_ApplyHintsFunc) af_latin2_hints_apply
- };
+ )
/* END */
projects / reactos.git / blobdiff