/* sdlkeyboard.c: routines for dealing with the SDL keyboard
   Copyright (c) 2000-2005 Philip Kendall, Matan Ziv-Av, Fredrick Meunier

   $Id: sdlkeyboard.c,v 1.9 2007/02/02 16:21:59 pak21 Exp $

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 49 Temple Place, Suite 330, Boston, MA 02111-1307 USA

   Author contact information:

   E-mail: philip-fuse@shadowmagic.org.uk

*/

#include <config.h>

#ifdef UI_SDL			/* Use this iff we're using SDL */

#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>

#include "display.h"
#include "fuse.h"
#include "keyboard.h"
#include "machine.h"
#include "settings.h"
#include "snapshot.h"
#include "spectrum.h"
#include "tape.h"
#include "utils.h"
#ifdef USE_WIDGET
#include "widget/widget.h"
#endif				/* #ifdef USE_WIDGET */
#include "sdlkeyboard.h"

/* Map low byte of UCS-2(?) Unicode to Fuse input layer keysym for
   upper case letters */
extern const keysyms_map_t unicode_keysyms_map[];

static GHashTable *unicode_keysyms_hash;

static input_key
unicode_keysyms_remap( libspectrum_dword ui_keysym )
{
  const input_key *ptr;

  ptr = g_hash_table_lookup( unicode_keysyms_hash, &ui_keysym );

  return ptr ? *ptr : INPUT_KEY_NONE;
}

void
sdlkeyboard_init(void)
{
  keysyms_map_t *ptr3;

  unicode_keysyms_hash = g_hash_table_new( g_int_hash, g_int_equal );

  for( ptr3 = (keysyms_map_t *)unicode_keysyms_map; ptr3->ui; ptr3++ )
    g_hash_table_insert( unicode_keysyms_hash, &( ptr3->ui ),
                         &( ptr3->fuse ) );
}

void
sdlkeyboard_end(void)
{
  g_hash_table_destroy( unicode_keysyms_hash );
}

void
sdlkeyboard_keypress( SDL_KeyboardEvent *keyevent )
{
  input_key fuse_keysym, unicode_keysym;
  input_event_t fuse_event;

  fuse_keysym = keysyms_remap( keyevent->keysym.sym );
  unicode_keysym = unicode_keysyms_remap( keyevent->keysym.unicode & 0xff80 );

  if( fuse_keysym == INPUT_KEY_NONE && unicode_keysym == INPUT_KEY_NONE )
    return;

  fuse_event.type = INPUT_EVENT_KEYPRESS;
  if( unicode_keysym == INPUT_KEY_NONE )
    fuse_event.types.key.native_key = fuse_keysym;
  else
    fuse_event.types.key.native_key = unicode_keysym;
  fuse_event.types.key.spectrum_key = fuse_keysym;

  input_event( &fuse_event );
}

void
sdlkeyboard_keyrelease( SDL_KeyboardEvent *keyevent )
{
  input_key fuse_keysym;
  input_event_t fuse_event;

  fuse_keysym = keysyms_remap( keyevent->keysym.sym );

  if( fuse_keysym == INPUT_KEY_NONE ) return;

  fuse_event.type = INPUT_EVENT_KEYRELEASE;
  /* SDL doesn't provide key release information for UNICODE, assuming that
     the values will just be used for dialog boxes et. al. so put in SDL keysym
     equivalent and hope for the best */
  fuse_event.types.key.native_key = fuse_keysym;
  fuse_event.types.key.spectrum_key = fuse_keysym;

  input_event( &fuse_event );
}

#endif			/* #ifdef UI_SDL */