/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995-2002 Spencer Kimball, Peter Mattis, and others
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <gegl.h>

#include "libgimpbase/gimpbase.h"

#include "core-types.h"

#include "gimp.h"
#include "gimp-gui.h"
#include "gimpcontainer.h"
#include "gimpcontext.h"
#include "gimpimage.h"
#include "gimpprogress.h"

#include "about.h"

#include "gimp-intl.h"


void
gimp_gui_init (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  gimp->gui.ungrab                = NULL;
  gimp->gui.threads_enter         = NULL;
  gimp->gui.threads_leave         = NULL;
  gimp->gui.set_busy              = NULL;
  gimp->gui.unset_busy            = NULL;
  gimp->gui.show_message          = NULL;
  gimp->gui.help                  = NULL;
  gimp->gui.get_program_class     = NULL;
  gimp->gui.get_display_name      = NULL;
  gimp->gui.get_user_time         = NULL;
  gimp->gui.get_theme_dir         = NULL;
  gimp->gui.display_get_by_id     = NULL;
  gimp->gui.display_get_id        = NULL;
  gimp->gui.display_get_window_id = NULL;
  gimp->gui.display_create        = NULL;
  gimp->gui.display_delete        = NULL;
  gimp->gui.displays_reconnect    = NULL;
  gimp->gui.progress_new          = NULL;
  gimp->gui.progress_free         = NULL;
  gimp->gui.pdb_dialog_set        = NULL;
  gimp->gui.pdb_dialog_close      = NULL;
  gimp->gui.recent_list_add_uri   = NULL;
  gimp->gui.recent_list_load      = NULL;
}

void
gimp_gui_ungrab (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  if (gimp->gui.ungrab)
    gimp->gui.ungrab (gimp);
}

void
gimp_threads_enter (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  if (gimp->gui.threads_enter)
    gimp->gui.threads_enter (gimp);
}

void
gimp_threads_leave (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  if (gimp->gui.threads_leave)
    gimp->gui.threads_leave (gimp);
}

void
gimp_set_busy (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  /* FIXME: gimp_busy HACK */
  gimp->busy++;

  if (gimp->busy == 1)
    {
      if (gimp->gui.set_busy)
        gimp->gui.set_busy (gimp);
    }
}

static gboolean
gimp_idle_unset_busy (gpointer data)
{
  Gimp *gimp = data;

  gimp_unset_busy (gimp);

  gimp->busy_idle_id = 0;

  return FALSE;
}

void
gimp_set_busy_until_idle (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  if (! gimp->busy_idle_id)
    {
      gimp_set_busy (gimp);

      gimp->busy_idle_id = g_idle_add_full (G_PRIORITY_HIGH,
                                            gimp_idle_unset_busy, gimp,
                                            NULL);
    }
}

void
gimp_unset_busy (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (gimp->busy > 0);

  /* FIXME: gimp_busy HACK */
  gimp->busy--;

  if (gimp->busy == 0)
    {
      if (gimp->gui.unset_busy)
        gimp->gui.unset_busy (gimp);
    }
}

void
gimp_show_message (Gimp                *gimp,
                   GObject             *handler,
                   GimpMessageSeverity  severity,
                   const gchar         *domain,
                   const gchar         *message)
{
  const gchar *desc = "Message";

  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (handler == NULL || G_IS_OBJECT (handler));
  g_return_if_fail (message != NULL);

  if (! domain)
    domain = GIMP_ACRONYM;

  if (! gimp->console_messages)
    {
      if (gimp->gui.show_message)
        {
          gimp->gui.show_message (gimp, handler,
                                  severity, domain, message);
          return;
        }
      else if (GIMP_IS_PROGRESS (handler) &&
               gimp_progress_message (GIMP_PROGRESS (handler), gimp,
                                      severity, domain, message))
        {
          /* message has been handled by GimpProgress */
          return;
        }
    }

  gimp_enum_get_value (GIMP_TYPE_MESSAGE_SEVERITY, severity,
                       NULL, NULL, &desc, NULL);
  g_printerr ("%s-%s: %s\n\n", domain, desc, message);
}

void
gimp_help (Gimp         *gimp,
           GimpProgress *progress,
           const gchar  *help_domain,
           const gchar  *help_id)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));

  if (gimp->gui.help)
    gimp->gui.help (gimp, progress, help_domain, help_id);
}

const gchar *
gimp_get_program_class (Gimp *gimp)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);

  if (gimp->gui.get_program_class)
    return gimp->gui.get_program_class (gimp);

  return NULL;
}

gchar *
gimp_get_display_name (Gimp *gimp,
                       gint  display_ID,
                       gint *monitor_number)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
  g_return_val_if_fail (monitor_number != NULL, NULL);

  if (gimp->gui.get_display_name)
    return gimp->gui.get_display_name (gimp, display_ID, monitor_number);

  *monitor_number = 0;

  return NULL;
}

/**
 * gimp_get_user_time:
 * @gimp:
 *
 * Returns the timestamp of the last user interaction. The timestamp is
 * taken from events caused by user interaction such as key presses or
 * pointer movements. See gdk_x11_display_get_user_time().
 *
 * Return value: the timestamp of the last user interaction
 */
guint32
gimp_get_user_time (Gimp *gimp)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), 0);

  if (gimp->gui.get_user_time)
    return gimp->gui.get_user_time (gimp);

  return 0;
}

const gchar *
gimp_get_theme_dir (Gimp *gimp)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);

  if (gimp->gui.get_theme_dir)
    return gimp->gui.get_theme_dir (gimp);

  return NULL;
}

GimpObject *
gimp_get_window_strategy (Gimp *gimp)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);

  if (gimp->gui.get_window_strategy)
    return gimp->gui.get_window_strategy (gimp);

  return NULL;
}

GimpObject *
gimp_get_empty_display (Gimp *gimp)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);

  if (gimp->gui.get_empty_display)
    return gimp->gui.get_empty_display (gimp);

  return NULL;
}

GimpObject *
gimp_get_display_by_ID (Gimp *gimp,
                        gint  ID)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);

  if (gimp->gui.display_get_by_id)
    return gimp->gui.display_get_by_id (gimp, ID);

  return NULL;
}

gint
gimp_get_display_ID (Gimp       *gimp,
                     GimpObject *display)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), -1);
  g_return_val_if_fail (GIMP_IS_OBJECT (display), -1);

  if (gimp->gui.display_get_id)
    return gimp->gui.display_get_id (display);

  return -1;
}

guint32
gimp_get_display_window_id (Gimp       *gimp,
                            GimpObject *display)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), -1);
  g_return_val_if_fail (GIMP_IS_OBJECT (display), -1);

  if (gimp->gui.display_get_window_id)
    return gimp->gui.display_get_window_id (display);

  return -1;
}

GimpObject *
gimp_create_display (Gimp      *gimp,
                     GimpImage *image,
                     GimpUnit   unit,
                     gdouble    scale)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
  g_return_val_if_fail (image == NULL || GIMP_IS_IMAGE (image), NULL);

  if (gimp->gui.display_create)
    return gimp->gui.display_create (gimp, image, unit, scale);

  return NULL;
}

void
gimp_delete_display (Gimp       *gimp,
                     GimpObject *display)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (GIMP_IS_OBJECT (display));

  if (gimp->gui.display_delete)
    gimp->gui.display_delete (display);
}

void
gimp_reconnect_displays (Gimp      *gimp,
                         GimpImage *old_image,
                         GimpImage *new_image)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (GIMP_IS_IMAGE (old_image));
  g_return_if_fail (GIMP_IS_IMAGE (new_image));

  if (gimp->gui.displays_reconnect)
    gimp->gui.displays_reconnect (gimp, old_image, new_image);
}

GimpProgress *
gimp_new_progress (Gimp       *gimp,
                   GimpObject *display)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
  g_return_val_if_fail (display == NULL || GIMP_IS_OBJECT (display), NULL);

  if (gimp->gui.progress_new)
    return gimp->gui.progress_new (gimp, display);

  return NULL;
}

void
gimp_free_progress (Gimp         *gimp,
                    GimpProgress *progress)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));
  g_return_if_fail (GIMP_IS_PROGRESS (progress));

  if (gimp->gui.progress_free)
    gimp->gui.progress_free (gimp, progress);
}

gboolean
gimp_pdb_dialog_new (Gimp          *gimp,
                     GimpContext   *context,
                     GimpProgress  *progress,
                     GimpContainer *container,
                     const gchar   *title,
                     const gchar   *callback_name,
                     const gchar   *object_name,
                     ...)
{
  gboolean retval = FALSE;

  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
  g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE);
  g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
  g_return_val_if_fail (GIMP_IS_CONTAINER (container), FALSE);
  g_return_val_if_fail (title != NULL, FALSE);
  g_return_val_if_fail (callback_name != NULL, FALSE);

  if (gimp->gui.pdb_dialog_new)
    {
      va_list args;

      va_start (args, object_name);

      retval = gimp->gui.pdb_dialog_new (gimp, context, progress,
                                         container, title,
                                         callback_name, object_name,
                                         args);

      va_end (args);
    }

  return retval;
}

gboolean
gimp_pdb_dialog_set (Gimp          *gimp,
                     GimpContainer *container,
                     const gchar   *callback_name,
                     const gchar   *object_name,
                     ...)
{
  gboolean retval = FALSE;

  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
  g_return_val_if_fail (GIMP_IS_CONTAINER (container), FALSE);
  g_return_val_if_fail (callback_name != NULL, FALSE);
  g_return_val_if_fail (object_name != NULL, FALSE);

  if (gimp->gui.pdb_dialog_set)
    {
      va_list args;

      va_start (args, object_name);

      retval = gimp->gui.pdb_dialog_set (gimp, container, callback_name,
                                         object_name, args);

      va_end (args);
    }

  return retval;
}

gboolean
gimp_pdb_dialog_close (Gimp          *gimp,
                       GimpContainer *container,
                       const gchar   *callback_name)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
  g_return_val_if_fail (GIMP_IS_CONTAINER (container), FALSE);
  g_return_val_if_fail (callback_name != NULL, FALSE);

  if (gimp->gui.pdb_dialog_close)
    return gimp->gui.pdb_dialog_close (gimp, container, callback_name);

  return FALSE;
}

gboolean
gimp_recent_list_add_uri (Gimp        *gimp,
                          const gchar *uri,
                          const gchar *mime_type)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
  g_return_val_if_fail (uri != NULL, FALSE);

  if (gimp->gui.recent_list_add_uri)
    return gimp->gui.recent_list_add_uri (gimp, uri, mime_type);

  return FALSE;
}

void
gimp_recent_list_load (Gimp *gimp)
{
  g_return_if_fail (GIMP_IS_GIMP (gimp));

  if (gimp->gui.recent_list_load)
    gimp->gui.recent_list_load (gimp);
}