void
gimp_progress_pulse (GimpProgress *progress)
{
  GimpProgressInterface *progress_iface;

  g_return_if_fail (GIMP_IS_PROGRESS (progress));

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->pulse)
    progress_iface->pulse (progress);
}

GMountOperation *
gimp_get_mount_operation (Gimp         *gimp,
                          GimpProgress *progress)
{
  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
  g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);

  if (gimp->gui.get_mount_operation)
    return gimp->gui.get_mount_operation (gimp, progress);

  return g_mount_operation_new ();
}

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);
}

/**
 * gimp_sub_progress_new:
 * @progress: parent progress or %NULL
 *
 * GimpSubProgress implements the GimpProgress interface and can be
 * used wherever a GimpProgress is needed. It maps progress
 * information to a sub-range of its parent @progress. This is useful
 * when an action breaks down into multiple sub-actions that itself
 * need a #GimpProgress pointer. See gimp_image_scale() for an example.
 *
 * Return value: a new #GimpProgress object
 */
GimpProgress *
gimp_sub_progress_new (GimpProgress *progress)
{
  GimpSubProgress *sub;

  g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);

  sub = g_object_new (GIMP_TYPE_SUB_PROGRESS,
                      "progress", progress,
                      NULL);

  return GIMP_PROGRESS (sub);
}

gdouble
gimp_progress_get_value (GimpProgress *progress)
{
  GimpProgressInterface *progress_iface;

  g_return_val_if_fail (GIMP_IS_PROGRESS (progress), 0.0);

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->get_value)
    return progress_iface->get_value (progress);

  return 0.0;
}

gboolean
gimp_progress_is_active (GimpProgress *progress)
{
  GimpProgressInterface *progress_iface;

  g_return_val_if_fail (GIMP_IS_PROGRESS (progress), FALSE);

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->is_active)
    return progress_iface->is_active (progress);

  return FALSE;
}

void
gimp_progress_set_text_literal (GimpProgress *progress,
                                const gchar  *message)
{
  GimpProgressInterface *progress_iface;

  g_return_if_fail (GIMP_IS_PROGRESS (progress));
  g_return_if_fail (message != NULL);

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->set_text)
    progress_iface->set_text (progress, message);
}

guint32
gimp_progress_get_window_id (GimpProgress *progress)
{
  GimpProgressInterface *progress_iface;

  g_return_val_if_fail (GIMP_IS_PROGRESS (progress), 0);

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->get_window_id)
    return progress_iface->get_window_id (progress);

  return 0;
}

void
gimp_drawable_foreground_extract_siox (GimpDrawable       *mask,
                                       SioxState          *state,
                                       SioxRefinementType  refinement,
                                       gint                smoothness,
                                       const gdouble       sensitivity[3],
                                       gboolean            multiblob,
                                       GimpProgress       *progress)
{
  GeglBuffer *buffer;
  gint        x1, y1;
  gint        x2, y2;

  g_return_if_fail (GIMP_IS_DRAWABLE (mask));
  g_return_if_fail (babl_format_get_bytes_per_pixel (gimp_drawable_get_format (mask)) == 1);

  g_return_if_fail (state != NULL);

  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));

  if (progress)
    gimp_progress_start (progress, _("Foreground Extraction"), FALSE);

  if (GIMP_IS_CHANNEL (mask))
    {
      gimp_channel_bounds (GIMP_CHANNEL (mask), &x1, &y1, &x2, &y2);
    }
  else
    {
      x1 = 0;
      y1 = 0;
      x2 = gimp_item_get_width  (GIMP_ITEM (mask));
      y2 = gimp_item_get_height (GIMP_ITEM (mask));
    }

  buffer = gimp_drawable_get_buffer (mask);

  siox_foreground_extract (state, refinement,
                           gimp_gegl_buffer_get_tiles (buffer),
                           x1, y1, x2, y2,
                           smoothness, sensitivity, multiblob,
                           (SioxProgressFunc) gimp_progress_set_value,
                           progress);

  if (progress)
    gimp_progress_end (progress);

  gimp_drawable_update (mask, x1, y1, x2, y2);
}

void
gimp_progress_set_value (GimpProgress *progress,
                         gdouble       percentage)
{
  GimpProgressInterface *progress_iface;

  g_return_if_fail (GIMP_IS_PROGRESS (progress));

  percentage = CLAMP (percentage, 0.0, 1.0);

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->set_value)
    progress_iface->set_value (progress, percentage);
}

void
gimp_progress_set_text (GimpProgress *progress,
                        const gchar  *message)
{
  GimpProgressInterface *progress_iface;

  g_return_if_fail (GIMP_IS_PROGRESS (progress));

  if (! message || ! strlen (message))
    message = _("Please wait");

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->set_text)
    progress_iface->set_text (progress, message);
}

void
gimp_image_resize_to_layers (GimpImage    *image,
                             GimpContext  *context,
                             GimpProgress *progress)
{
  GList    *list;
  GimpItem *item;
  gint      x, y;
  gint      width, height;

  g_return_if_fail (GIMP_IS_IMAGE (image));
  g_return_if_fail (GIMP_IS_CONTEXT (context));
  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));

  list = gimp_image_get_layer_iter (image);

  if (! list)
    return;

  /* figure out starting values */
  item = list->data;

  x      = gimp_item_get_offset_x (item);
  y      = gimp_item_get_offset_y (item);
  width  = gimp_item_get_width  (item);
  height = gimp_item_get_height (item);

  /*  Respect all layers  */
  for (list = g_list_next (list); list; list = g_list_next (list))
    {
      item = list->data;

      gimp_rectangle_union (x, y,
                            width, height,
                            gimp_item_get_offset_x (item),
                            gimp_item_get_offset_y (item),
                            gimp_item_get_width  (item),
                            gimp_item_get_height (item),
                            &x, &y,
                            &width, &height);
    }

  gimp_image_resize (image, context,
                     width, height, -x, -y,
                     progress);
}

gint
gimp_plug_in_progress_detach (GimpProgress *progress)
{
  gint attach_count;

  g_return_val_if_fail (GIMP_IS_PROGRESS (progress), 0);

  attach_count =
    GPOINTER_TO_INT (g_object_get_data (G_OBJECT (progress),
                                        "plug-in-progress-attach-count"));

  attach_count--;

  g_object_set_data (G_OBJECT (progress), "plug-in-progress-attach-count",
                     GINT_TO_POINTER (attach_count));

  return attach_count;
}

void
gimp_progress_set_text (GimpProgress *progress,
                        const gchar  *format,
                        ...)
{
  va_list  args;
  gchar   *message;

  g_return_if_fail (GIMP_IS_PROGRESS (progress));
  g_return_if_fail (format != NULL);

  va_start (args, format);
  message = g_strdup_vprintf (format, args);
  va_end (args);

  gimp_progress_set_text_literal (progress, message);

  g_free (message);
}

GimpProgress *
gimp_progress_start (GimpProgress *progress,
                     const gchar  *message,
                     gboolean      cancelable)
{
  GimpProgressInterface *progress_iface;

  g_return_val_if_fail (GIMP_IS_PROGRESS (progress), NULL);

  if (! message)
    message = _("Please wait");

  progress_iface = GIMP_PROGRESS_GET_INTERFACE (progress);

  if (progress_iface->start)
    return progress_iface->start (progress, message, cancelable);

  return NULL;
}

/**
 * gimp_item_scale_by_origin:
 * @item:         The item to be transformed by width & height scale factors
 * @new_width:    The width that item will acquire
 * @new_height:   The height that the item will acquire
 * @interpolation:
 * @progress:
 * @local_origin: sets fixed point of the scaling transform. See below.
 *
 * Sets item dimensions to new_width and
 * new_height. Derives vertical and horizontal scaling
 * transforms from new width and height. If local_origin is
 * #TRUE, the fixed point of the scaling transform coincides
 * with the item's center point.  Otherwise, the fixed
 * point is taken to be [-item->offset_x, -item->offset_y].
 *
 * Since this function derives scale factors from new and
 * current item dimensions, these factors will vary from
 * item to item because of aliasing artifacts; factor
 * variations among items can be quite large where item
 * dimensions approach pixel dimensions. Use
 * gimp_item_scale_by_factors() where constant scales are to
 * be uniformly applied to a number of items.
 *
 * Side effects: undo set created for item.
 *               Old item imagery scaled
 *               & painted to new item tiles
 **/
void
gimp_item_scale_by_origin (GimpItem              *item,
                           gint                   new_width,
                           gint                   new_height,
                           GimpInterpolationType  interpolation,
                           GimpProgress          *progress,
                           gboolean               local_origin)
{
  gint new_offset_x, new_offset_y;

  g_return_if_fail (GIMP_IS_ITEM (item));
  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));

  if (new_width == 0 || new_height == 0)
    {
      g_warning ("%s: requested width or height equals zero", G_STRFUNC);
      return;
    }

  if (local_origin)
    {
      new_offset_x = (item->offset_x +
                      ((gimp_item_width  (item) - new_width)  / 2.0));
      new_offset_y = (item->offset_y +
                      ((gimp_item_height (item) - new_height) / 2.0));
    }
  else
    {
      new_offset_x = (gint) (((gdouble) new_width *
                              (gdouble) item->offset_x /
                              (gdouble) gimp_item_width (item)));

      new_offset_y = (gint) (((gdouble) new_height *
                              (gdouble) item->offset_y /
                              (gdouble) gimp_item_height (item)));
    }

  gimp_item_scale (item,
                   new_width, new_height,
                   new_offset_x, new_offset_y,
                   interpolation, progress);
}

void
gimp_gegl_apply_invert_linear (GeglBuffer    *src_buffer,
                               GimpProgress  *progress,
                               const gchar   *undo_desc,
                               GeglBuffer    *dest_buffer)
{
  GeglNode *node;

  g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
  g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));

  node = gegl_node_new_child (NULL,
                              "operation", "gegl:invert-linear",
                              NULL);

  gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
                             node, dest_buffer, NULL);
  g_object_unref (node);
}

void
gimp_gegl_apply_flatten (GeglBuffer    *src_buffer,
                         GimpProgress  *progress,
                         const gchar   *undo_desc,
                         GeglBuffer    *dest_buffer,
                         const GimpRGB *background)
{
  GeglNode *node;

  g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
  g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
  g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
  g_return_if_fail (background != NULL);

  node = gimp_gegl_create_flatten_node (background);

  gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
                             node, dest_buffer, NULL);
  g_object_unref (node);
}

gboolean
gimp_item_stroke (GimpItem        *item,
                  GimpDrawable    *drawable,
                  GimpContext     *context,
                  GimpStrokeDesc  *stroke_desc,
                  gboolean         use_default_values,
                  GimpProgress    *progress,
                  GError         **error)
{
  GimpItemClass *item_class;
  gboolean       retval = FALSE;

  g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE);
  g_return_val_if_fail (gimp_item_is_attached (item), FALSE);
  g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
  g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
  g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE);
  g_return_val_if_fail (GIMP_IS_STROKE_DESC (stroke_desc), FALSE);
  g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);

  item_class = GIMP_ITEM_GET_CLASS (item);

  if (item_class->stroke)
    {
      GimpImage *image = gimp_item_get_image (item);

      gimp_stroke_desc_prepare (stroke_desc, context, use_default_values);

      gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_PAINT,
                                   item_class->stroke_desc);

      retval = item_class->stroke (item, drawable, stroke_desc, progress, error);

      gimp_image_undo_group_end (image);

      gimp_stroke_desc_finish (stroke_desc);
    }

  return retval;
}

GimpPlugInProcFrame *
gimp_plug_in_proc_frame_push (GimpPlugIn             *plug_in,
                              GimpContext            *context,
                              GimpProgress           *progress,
                              GimpTemporaryProcedure *procedure)
{
  GimpPlugInProcFrame *proc_frame;

  g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), NULL);
  g_return_val_if_fail (GIMP_IS_PDB_CONTEXT (context), NULL);
  g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
  g_return_val_if_fail (GIMP_IS_TEMPORARY_PROCEDURE (procedure), NULL);

  proc_frame = gimp_plug_in_proc_frame_new (context, progress,
                                            GIMP_PLUG_IN_PROCEDURE (procedure));

  plug_in->temp_proc_frames = g_list_prepend (plug_in->temp_proc_frames,
                                              proc_frame);

  return proc_frame;
}