/* -*- c-file-style: "ruby"; indent-tabs-mode: nil -*- */
/************************************************

  rbpangoscriptiter.c -

  $Author: sakai $
  $Date: 2007/07/08 02:53:10 $

  Copyright (C) 2005 Masao Mutoh
************************************************/

#include "rbpango.h"

#if PANGO_CHECK_VERSION(1,4,0)

/**********************************/
static PangoScriptIter*
rbpango_script_iter_copy(PangoScriptIter *ref)
{
/*
  PangoScriptIter* new_ref = pango_script_iter_new("", 0);
  g_return_val_if_fail (ref != NULL, NULL);
  new_ref = g_new(PangoScriptIter, 1);
  *new_ref = *ref;
  return new_ref;
*/
    return ref;
}

GType
pango_script_iter_get_type(void)
{
    static GType our_type = 0;

    if (our_type == 0)
        our_type = g_boxed_type_register_static ("PangoScriptIter",
                    (GBoxedCopyFunc)rbpango_script_iter_copy,
                    (GBoxedFreeFunc)pango_script_iter_free);
    return our_type;
}
/**********************************/

#define _SELF(r) ((PangoScriptIter*)RVAL2BOXED(r, PANGO_TYPE_SCRIPT_ITER))

static VALUE
rbpango_scriptiter_initialize(VALUE self, VALUE text)
{
    PangoScriptIter* iter;

    StringValue(text);
    iter = pango_script_iter_new(RVAL2CSTR(text), RSTRING_LEN(text));
    G_INITIALIZE(self, iter);
    return Qnil;
}

static VALUE
rbpango_scriptiter_get_range(VALUE self)
{
    G_CONST_RETURN char* start;
    G_CONST_RETURN char* end;
    PangoScript script;

    pango_script_iter_get_range(_SELF(self), &start, &end, &script);

    return rb_ary_new3(3, CSTR2RVAL(start), CSTR2RVAL(end), 
                       GENUM2RVAL(script, PANGO_TYPE_SCRIPT));
}

static VALUE
rbpango_scriptiter_next(VALUE self)
{
    return CBOOL2RVAL(pango_script_iter_next(_SELF(self)));
}
#endif

void
Init_pango_script_iter()
{
#if PANGO_CHECK_VERSION(1,4,0)
    VALUE scriter = G_DEF_CLASS(PANGO_TYPE_SCRIPT_ITER, "ScriptIter", mPango);

    rb_define_method(scriter, "initialize", rbpango_scriptiter_initialize, 1);
    rb_define_method(scriter, "range", rbpango_scriptiter_get_range, 0);
    rb_define_method(scriter, "next!", rbpango_scriptiter_next, 0);
#endif
}

