C++ (Cpp) gimp_image_undo_push_fs_to_layer示例

示例#1

文件： gimplayer-floating-sel.c 项目： Amerekanets/gimp

void
floating_sel_to_layer (GimpLayer *layer)
{
  GimpItem  *item;
  GimpImage *image;

  g_return_if_fail (GIMP_IS_LAYER (layer));
  g_return_if_fail (gimp_layer_is_floating_sel (layer));

  item = GIMP_ITEM (layer);

  if (! (image = gimp_item_get_image (item)))
    return;

  /*  Check if the floating layer belongs to a channel...  */
  if (GIMP_IS_CHANNEL (layer->fs.drawable))
    {
      gimp_message (image->gimp, NULL, GIMP_MESSAGE_WARNING,
                    _("Cannot create a new layer from the floating selection "
                      "because it belongs to a layer mask or channel."));
      return;
    }

  gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_TO_LAYER,
                               _("Floating Selection to Layer"));

  /*  restore the contents of the drawable  */
  floating_sel_restore (layer,
                        item->offset_x,
                        item->offset_y,
                        item->width,
                        item->height);

  gimp_image_undo_push_fs_to_layer (image, NULL, layer);

  /*  clear the selection  */
  gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (layer));

  /*  Set pointers  */
  layer->fs.drawable   = NULL;
  image->floating_sel = NULL;

  gimp_item_set_visible (GIMP_ITEM (layer), TRUE, TRUE);
  gimp_layer_set_lock_alpha (layer, FALSE, TRUE);

  gimp_image_undo_group_end (image);

  gimp_object_name_changed (GIMP_OBJECT (layer));

  gimp_drawable_update (GIMP_DRAWABLE (layer),
                        0, 0,
                        GIMP_ITEM (layer)->width,
                        GIMP_ITEM (layer)->height);

  gimp_image_floating_selection_changed (image);
}

示例#2

文件： gimplayer-floating-sel.c 项目： ChristianBusch/gimp

gboolean
floating_sel_to_layer (GimpLayer  *layer,
                       GError    **error)
{
  GimpItem  *item;
  GimpImage *image;

  g_return_val_if_fail (GIMP_IS_LAYER (layer), FALSE);
  g_return_val_if_fail (gimp_layer_is_floating_sel (layer), FALSE);
  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);

  item  = GIMP_ITEM (layer);
  image = gimp_item_get_image (item);

  /*  Check if the floating layer belongs to a channel  */
  if (GIMP_IS_CHANNEL (gimp_layer_get_floating_sel_drawable (layer)))
    {
      g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
			   _("Cannot create a new layer from the floating "
			     "selection because it belongs to a layer mask "
			     "or channel."));
      return FALSE;
    }

  gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_TO_LAYER,
                               C_("undo-type", "Floating Selection to Layer"));

  gimp_image_undo_push_fs_to_layer (image, NULL, layer);

  gimp_drawable_detach_floating_sel (gimp_layer_get_floating_sel_drawable (layer));
  gimp_layer_set_floating_sel_drawable (layer, NULL);

  gimp_item_set_visible (item, TRUE, TRUE);
  gimp_layer_set_lock_alpha (layer, FALSE, TRUE);

  gimp_image_undo_group_end (image);

  /* When the floating selection is converted to/from a normal layer
   * it does something resembling a name change, so emit the
   * "name-changed" signal
   */
  gimp_object_name_changed (GIMP_OBJECT (layer));

  gimp_drawable_update (GIMP_DRAWABLE (layer),
                        0, 0,
                        gimp_item_get_width  (item),
                        gimp_item_get_height (item));

  return TRUE;
}