/*
  tv.c

  TV Magic Tools Plugin
  Tux Paint - A simple drawing program for children.

  Credits: Adam 'foo-script' Rakowski <foo-script@o2.pl>

  Copyright (c) 2002-2008 by Bill Kendrick and others; see AUTHORS.txt
  bill@newbreedsoftware.com
  http://www.tuxpaint.org/

  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  (See COPYING.txt)
*/

#include "tp_magic_api.h"
#include "SDL_image.h"
#include "SDL_mixer.h"

int RADIUS = 16;

Mix_Chunk * tv_snd;

//				Housekeeping functions

Uint32 tv_api_version(void)
{
  return(TP_MAGIC_API_VERSION);
}

void tv_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)	//get the colors from API and store it in structure
{

}

int tv_init(magic_api * api)
{
  char fname[1024];
	
    snprintf(fname, sizeof(fname), "%s/sounds/magic/tv.ogg", api->data_directory);
    tv_snd = Mix_LoadWAV(fname);

  return(1);
}

int tv_get_tool_count(magic_api * api)
{
  return 1;
}

SDL_Surface * tv_get_icon(magic_api * api, int which)
{
  char fname[1024];

  snprintf(fname, sizeof(fname), "%s/images/magic/tv.png",
	     api->data_directory);

  return(IMG_Load(fname));
}

char * tv_get_name(magic_api * api, int which) { return strdup(gettext_noop("TV")); }

char * tv_get_description(magic_api * api, int which, int mode) 
{ 
  if (mode == MODE_PAINT)
    return strdup(gettext_noop("Click and drag to make parts of your picture look like they are on television.")); 

  else
    return strdup(gettext_noop("Click to make your picture look like it's on television.")); 

}

int tv_requires_colors(magic_api * api, int which) { return 0; }

void tv_release(magic_api * api, int which,
	           SDL_Surface * canvas, SDL_Surface * snapshot,
	           int x, int y, SDL_Rect * update_rect)
{
}

void tv_shutdown(magic_api * api)
	{ Mix_FreeChunk(tv_snd); }

// Interactivity functions

void tv_paint_tv(void * ptr_to_api, int which_tool,
               SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y)
{
  int i, j;
  magic_api * api = (magic_api *) ptr_to_api;

  for (i = x - RADIUS; i < x + RADIUS; i++)
    for (j = y - RADIUS; j < y + RADIUS; j++)
      if ((j + 1) % 2 &&
	  api->in_circle(i - x, j - y, RADIUS) &&
	  ! api->touched(i, j))
	api->putpixel(canvas, i, j, SDL_MapRGB(canvas->format, 128, 128, 165));
}

void tv_do_tv(void * ptr_to_api, int which_tool,
               SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y)
{
	magic_api * api = (magic_api *) ptr_to_api;
	
	api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, 128, 128, 165));
	//api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, 0, 0, 255));
}

void tv_drag(magic_api * api, int which, SDL_Surface * canvas,
	          SDL_Surface * snapshot, int ox, int oy, int x, int y,
		  SDL_Rect * update_rect)
{
  api->line(api, which, canvas, snapshot, ox, oy, x, y, 1, tv_paint_tv);

  update_rect->x = min(ox, x) - RADIUS;
  update_rect->y = min(oy, y) - RADIUS;
  update_rect->w = abs(ox - x) + RADIUS * 2;
  update_rect->h = abs(oy - y) + RADIUS * 2;
  api->playsound(tv_snd, (x * 255) / canvas->w, 255);
}

void tv_click(magic_api * api, int which, int mode,
	           SDL_Surface * canvas, SDL_Surface * last,
	           int x, int y, SDL_Rect * update_rect)
{
  if (mode == MODE_FULLSCREEN)
    {
	int i;

	for (i=0; i<canvas->h; i+=2)
		api->line(api, which, canvas, last, 0, i, canvas->w, i, 1, tv_do_tv);

	update_rect->w=canvas->w;
	update_rect->h=canvas->h;
	update_rect->x=update_rect->y=0;
	api->playsound(tv_snd, 128,255);
    }
  else
    {
	tv_drag(api, which, canvas, last, x, y, x, y, update_rect);
    }
}

void tv_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas)
{	
	
}

void tv_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas)
{
	
}

int tv_modes(magic_api * api, int which)
{
  return(MODE_FULLSCREEN | MODE_PAINT);
}