/* GNU LilyPond
 * pango-afm-decoder.c -- AFM fontencoding for Pango fontconfig
 *
 * Copyright (C) 2004  Jan Nieuwenhuizen <address@hidden>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "pangofc-afm-decoder.h"

struct _PangoFcAfmDecoderPrivate
{
  GString encoding[256];
  //GString file_name;
  char const *file_name;
  PangoFcFont *fc_font;
};

static void pango_fc_afm_decoder_init (PangoFcAfmDecoder *fontmap);
static void pango_fc_afm_decoder_class_init (PangoFcDecoderClass *class);
static void pango_fc_afm_decoder_finalize (GObject *object);

static FcCharSet *pango_fc_afm_get_charset (PangoFcFont *fcfont);
static PangoGlyph pango_fc_afm_get_glyph (PangoFcFont *fcfont, guint32 wc);
static void pango_fc_afm_decoder_set_file_name (PangoFcAfmDecoder *self, char const* file_name);


static PangoFcDecoderClass *parent_class;

GType
pango_fc_afm_decoder_get_type (void)
{
  static GType object_type = 0;

  if (!object_type)
    {
      static const GTypeInfo object_info =
      {
        sizeof (PangoFcAfmDecoderClass),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) pango_fc_afm_decoder_class_init,
        NULL,           /* class_finalize */
        NULL,           /* class_data */
        sizeof (PangoFcAfmDecoder),
        0,              /* n_preallocs */
        (GInstanceInitFunc) pango_fc_afm_decoder_init,
      };
      
      object_type = g_type_register_static (PANGO_TYPE_FONT_MAP,
                                            "PangoFcAfmDecoder",
                                            &object_info, 0);
    }
  
  return object_type;
}

static void 
pango_fc_afm_decoder_init (PangoFcAfmDecoder *fcafmdecoder)
{
  static gboolean registered_modules = FALSE;
  PangoFcAfmDecoderPrivate *priv = fcafmdecoder->priv;

  priv = fcafmdecoder->priv = G_TYPE_INSTANCE_GET_PRIVATE (fcafmdecoder,
							   PANGO_TYPE_FC_AFM_DECODER,
							   PangoFcAfmDecoderPrivate);

  //self->private = g_new0 (MamanBarPrivate, 1);

  /*
    init members
   */
}

static void
pango_fc_afm_decoder_class_init (PangoFcDecoderClass *class)
{
  GObjectClass *object_class = G_OBJECT_CLASS (class);
  
  parent_class = g_type_class_peek_parent (class);
  
  object_class->finalize = pango_fc_afm_decoder_finalize;

  class->get_charset = pango_fc_afm_get_charset;
  class->get_glyph = pango_fc_afm_get_glyph;

  g_type_class_add_private (object_class, sizeof (PangoFcAfmDecoderPrivate));
}

static void
pango_fc_afm_decoder_finalize (GObject *object)
{
  PangoFcAfmDecoder *fcafmdecoder = PANGO_FC_AFM_DECODER (object);
  PangoFcAfmDecoderPrivate *priv = fcafmdecoder->priv;

  /*
    destroy members
   */

  G_OBJECT_CLASS (parent_class)->finalize (object);
}

static FcCharSet *
pango_fc_afm_get_charset (PangoFcFont *fcfont)
{
  // read afm
  // convert afm mapping into FcCharset
  return 0;
}

static PangoGlyph
pango_fc_afm_get_glyph (PangoFcFont *fcfont, guint32 wc)
{
  // map wc -> character name
  // `get' character by name from font
  // turn character into PangoGlyph
  return 0;
}

static void
pango_fc_afm_decoder_set_file_name (PangoFcAfmDecoder *self, char const* file_name)
{
  self->priv->file_name = file_name;
}

#include <stdio.h>

PangoFcDecoder *
pango_fc_afm_find_decoder (FcPattern *pattern, gpointer user_data)
{
  /* TODO:
     - figure out what pattern, use_data are ant what they contain,
     - if we're a customly encoded afm file, create an afm decoder,
     - initialize decoder with name of font, or afm file name.
   */
  //PangoFcAfmDecoder *afm = g_object_new (PANGO_FC_AFM_DECODER, null);
  PangoFcAfmDecoder *afm = g_object_new (PANGO_TYPE_FC_AFM_DECODER, 0);
  pango_fc_afm_decoder_set_file_name (afm, "feta20.afm");

  fprintf (stderr, "Hello world\n");

  // Hmmm, is this the right way to return an instance of a derived class?
  return afm;
}