gimp/app/pdb/palettes_cmds.c

/* The GIMP -- an image manipulation program
 * Copyright (C) 1995-2003 Spencer Kimball and Peter Mattis
 *
 * 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.
 */

/* NOTE: This file is autogenerated by pdbgen.pl. */

#include "config.h"

#include <string.h>

#include <glib-object.h>

#include "libgimpbase/gimpbasetypes.h"

#include "pdb-types.h"
#include "procedural_db.h"

#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdatafactory.h"
#include "core/gimplist.h"
#include "core/gimppalette.h"

#include "libgimpcolor/gimpcolor.h"

static ProcRecord palettes_refresh_proc;
static ProcRecord palettes_get_list_proc;
static ProcRecord palettes_get_palette_proc;
static ProcRecord palettes_set_palette_proc;
static ProcRecord palettes_get_palette_entry_proc;

void
register_palettes_procs (Gimp *gimp)
{
  procedural_db_register (gimp, &palettes_refresh_proc);
  procedural_db_register (gimp, &palettes_get_list_proc);
  procedural_db_register (gimp, &palettes_get_palette_proc);
  procedural_db_register (gimp, &palettes_set_palette_proc);
  procedural_db_register (gimp, &palettes_get_palette_entry_proc);
}

static Argument *
palettes_refresh_invoker (Gimp     *gimp,
                          Argument *args)
{
  /* FIXME: I've hardcoded success to be TRUE, because brushes_init() is a 
   *        void function right now.  It'd be nice if it returned a value at 
   *        some future date, so we could tell if things blew up when reparsing
   *        the list (for whatever reason). 
   *                       - Seth "Yes, this is a kludge" Burgess
   *                         <sjburges@ou.edu>
   *   -and shamelessly stolen by Adrian Likins for use here...
   */

  gimp_data_factory_data_init (gimp->palette_factory, FALSE);

  return procedural_db_return_args (&palettes_refresh_proc, TRUE);
}

static ProcRecord palettes_refresh_proc =
{
  "gimp_palettes_refresh",
  "Refreshes current palettes.",
  "This procedure incorporates all palettes currently in the users palette path.",
  "Adrian Likins <adrian@gimp.org>",
  "Adrian Likins",
  "1998",
  GIMP_INTERNAL,
  0,
  NULL,
  0,
  NULL,
  { { palettes_refresh_invoker } }
};

static Argument *
palettes_get_list_invoker (Gimp     *gimp,
                           Argument *args)
{
  gboolean success = TRUE;
  Argument *return_args;
  gchar **palettes;
  GList *list;
  gint i = 0;

  palettes = g_new (gchar *, gimp->palette_factory->container->num_children);

  for (list = GIMP_LIST (gimp->palette_factory->container)->list;
       list;
       list = g_list_next (list))
    {
      palettes[i++] = g_strdup (GIMP_OBJECT (list->data)->name);
    }

  success = (i > 0);

  return_args = procedural_db_return_args (&palettes_get_list_proc, success);

  if (success)
    {
      return_args[1].value.pdb_int = gimp->palette_factory->container->num_children;
      return_args[2].value.pdb_pointer = palettes;
    }

  return return_args;
}

static ProcArg palettes_get_list_outargs[] =
{
  {
    GIMP_PDB_INT32,
    "num_palettes",
    "The number of palettes in the list"
  },
  {
    GIMP_PDB_STRINGARRAY,
    "palette_list",
    "The list of palette names"
  }
};

static ProcRecord palettes_get_list_proc =
{
  "gimp_palettes_get_list",
  "Retrieves a list of all of the available palettes",
  "This procedure returns a complete listing of available palettes. Each name returned can be used as input to the command 'gimp_palette_set_palette'.",
  "Nathan Summers <rock@gimp.org>",
  "Nathan Summers",
  "2001",
  GIMP_INTERNAL,
  0,
  NULL,
  2,
  palettes_get_list_outargs,
  { { palettes_get_list_invoker } }
};

static Argument *
palettes_get_palette_invoker (Gimp     *gimp,
                              Argument *args)
{
  gboolean success = TRUE;
  Argument *return_args;
  GimpPalette *palette;

  success = (palette = gimp_context_get_palette (gimp_get_current_context (gimp))) != NULL;

  return_args = procedural_db_return_args (&palettes_get_palette_proc, success);

  if (success)
    {
      return_args[1].value.pdb_pointer = g_strdup (GIMP_OBJECT (palette)->name);
      return_args[2].value.pdb_int = palette->n_colors;
    }

  return return_args;
}

static ProcArg palettes_get_palette_outargs[] =
{
  {
    GIMP_PDB_STRING,
    "name",
    "The palette name"
  },
  {
    GIMP_PDB_INT32,
    "num_colors",
    "The palette num_colors"
  }
};

static ProcRecord palettes_get_palette_proc =
{
  "gimp_palettes_get_palette",
  "Retrieve information about the currently active palette.",
  "This procedure retrieves information about the currently active palette. This includes the name, and the number of colors.",
  "Nathan Summers <rock@gimp.org>",
  "Nathan Summers",
  "2001",
  GIMP_INTERNAL,
  0,
  NULL,
  2,
  palettes_get_palette_outargs,
  { { palettes_get_palette_invoker } }
};

static Argument *
palettes_set_palette_invoker (Gimp     *gimp,
                              Argument *args)
{
  gboolean success = TRUE;
  gchar *name;
  GimpPalette *palette;

  name = (gchar *) args[0].value.pdb_pointer;
  if (name == NULL)
    success = FALSE;

  if (success)
    {
      palette = (GimpPalette *)
	gimp_container_get_child_by_name (gimp->palette_factory->container, name);
    
      success = (palette != NULL);
    
      if (success)
	gimp_context_set_palette (gimp_get_current_context (gimp), palette);
    }

  return procedural_db_return_args (&palettes_set_palette_proc, success);
}

static ProcArg palettes_set_palette_inargs[] =
{
  {
    GIMP_PDB_STRING,
    "name",
    "The palette name"
  }
};

static ProcRecord palettes_set_palette_proc =
{
  "gimp_palettes_set_palette",
  "Set the specified palette as the active palette.",
  "This procedure allows the active palette to be set by specifying its name. The name is simply a string which corresponds to one of the names of the installed palettes. If no matching palette is found, this procedure will return an error. Otherwise, the specified palette becomes active and will be used in all subsequent palette operations.",
  "Nathan Summers <rock@gimp.org>",
  "Nathan Summers",
  "2001",
  GIMP_INTERNAL,
  1,
  palettes_set_palette_inargs,
  0,
  NULL,
  { { palettes_set_palette_invoker } }
};

static Argument *
palettes_get_palette_entry_invoker (Gimp     *gimp,
                                    Argument *args)
{
  gboolean success = TRUE;
  Argument *return_args;
  gchar *name;
  gint32 entry_num;
  GimpRGB color;
  GimpPalette *palette = NULL;

  name = (gchar *) args[0].value.pdb_pointer;
  if (name == NULL)
    success = FALSE;

  entry_num = args[1].value.pdb_int;

  if (success)
    {
      if (strlen (name))
	{
	  palette = (GimpPalette *)
	    gimp_container_get_child_by_name (gimp->palette_factory->container,
					      name);
	}
      else
	{
	  palette = gimp_context_get_palette (gimp_get_current_context (gimp));
	}
    
      success = (palette != NULL);
    
      if (success)
	{
	  if (entry_num < 0 || entry_num >= palette->n_colors) 
	    {
	      success = FALSE;
	    }
	  else
	    {
	      GimpPaletteEntry *entry;
    
	      entry = (GimpPaletteEntry *)
		g_list_nth_data (palette->colors, entry_num);
    
	      color = entry->color;
	    }
	}
    }

  return_args = procedural_db_return_args (&palettes_get_palette_entry_proc, success);

  if (success)
    {
      return_args[1].value.pdb_pointer = g_strdup (GIMP_OBJECT (palette)->name);
      return_args[2].value.pdb_int = palette->n_colors;
      return_args[3].value.pdb_color = color;
    }

  return return_args;
}

static ProcArg palettes_get_palette_entry_inargs[] =
{
  {
    GIMP_PDB_STRING,
    "name",
    "the palette name (\"\" means currently active palette)"
  },
  {
    GIMP_PDB_INT32,
    "entry_num",
    "The entry to retrieve"
  }
};

static ProcArg palettes_get_palette_entry_outargs[] =
{
  {
    GIMP_PDB_STRING,
    "name",
    "The palette name"
  },
  {
    GIMP_PDB_INT32,
    "num_colors",
    "The palette num_colors"
  },
  {
    GIMP_PDB_COLOR,
    "color",
    "The color requested"
  }
};

static ProcRecord palettes_get_palette_entry_proc =
{
  "gimp_palettes_get_palette_entry",
  "Gets the specified palette entry from the currently active palette.",
  "This procedure retrieves the color of the zero-based entry specifed for the current palette. It returns an error if the entry does not exist.",
  "Nathan Summers <rock@gimp.org>",
  "Nathan Summers",
  "2001",
  GIMP_INTERNAL,
  2,
  palettes_get_palette_entry_inargs,
  3,
  palettes_get_palette_entry_outargs,
  { { palettes_get_palette_entry_invoker } }
};