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Viewing changes to pango/pango-ot-ruleset.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2009-08-10 21:23:54 UTC
  • mfrom: (1.5.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20090810212354-2mq9f0t90khvon6k
Tags: 1.25.1-0ubuntu1
New upstream version

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pango/pango-ot-ruleset.c
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#include "pango-ot-private.h"
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#include "pango-impl-utils.h"
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typedef struct _PangoOTRule PangoOTRule;
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struct _PangoOTRule
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{
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  gulong     property_bit;
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  HB_UShort  feature_index;
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  guint      table_type : 1;
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};
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static void pango_ot_ruleset_class_init (GObjectClass   *object_class);
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static void pango_ot_ruleset_init       (PangoOTRuleset *ruleset);
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static void pango_ot_ruleset_finalize   (GObject        *object);
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pango_ot_ruleset_substitute  (const PangoOTRuleset *ruleset,
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                              PangoOTBuffer        *buffer)
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{
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  unsigned int i;
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  HB_GSUB gsub = NULL;
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  g_return_if_fail (PANGO_IS_OT_RULESET (ruleset));
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  g_return_if_fail (ruleset->info != NULL);
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  for (i = 0; i < ruleset->rules->len; i++)
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    {
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      PangoOTRule *rule = &g_array_index (ruleset->rules, PangoOTRule, i);
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      if (rule->table_type != PANGO_OT_TABLE_GSUB)
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        continue;
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      if (!gsub)
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        {
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          gsub = pango_ot_info_get_gsub (ruleset->info);
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          if (gsub)
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            HB_GSUB_Clear_Features (gsub);
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          else
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            return;
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        }
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      HB_GSUB_Add_Feature (gsub, rule->feature_index, rule->property_bit);
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    }
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  HB_GSUB_Apply_String (gsub, buffer->buffer);
 
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  _pango_ot_info_substitute (ruleset->info,
 
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                             ruleset,
 
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                             buffer);
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}
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/**
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pango_ot_ruleset_position (const PangoOTRuleset *ruleset,
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                           PangoOTBuffer        *buffer)
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{
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  unsigned int i;
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  HB_GPOS gpos = NULL;
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  g_return_if_fail (PANGO_IS_OT_RULESET (ruleset));
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  g_return_if_fail (ruleset->info != NULL);
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  for (i = 0; i < ruleset->rules->len; i++)
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    {
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      PangoOTRule *rule = &g_array_index (ruleset->rules, PangoOTRule, i);
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      if (rule->table_type != PANGO_OT_TABLE_GPOS)
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        continue;
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      if (!gpos)
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        {
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          gpos = pango_ot_info_get_gpos (ruleset->info);
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          if (gpos)
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            HB_GPOS_Clear_Features (gpos);
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          else
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            return;
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        }
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      HB_GPOS_Add_Feature (gpos, rule->feature_index, rule->property_bit);
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    }
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  if (HB_GPOS_Apply_String (ruleset->info->face, gpos, 0, buffer->buffer,
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                            FALSE /* enable device-dependant values */,
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                            buffer->rtl) == HB_Err_Ok)
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    buffer->applied_gpos = TRUE;
 
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  _pango_ot_info_position   (ruleset->info,
 
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                             ruleset,
 
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                             buffer);
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}
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/* ruleset descriptions */
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/**