/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 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 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 . */ #include "config.h" #include #include #include "core-types.h" #include "gimpdrawable.h" #include "gimpdrawable-equalize.h" #include "gimpdrawable-histogram.h" #include "gimpdrawable-operation.h" #include "gimphistogram.h" #include "gimpimage.h" #include "gimpselection.h" #include "gimp-intl.h" void gimp_drawable_equalize (GimpDrawable *drawable, gboolean mask_only) { GimpImage *image; GimpChannel *selection; GimpHistogram *histogram; GeglNode *equalize; g_return_if_fail (GIMP_IS_DRAWABLE (drawable)); g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable))); image = gimp_item_get_image (GIMP_ITEM (drawable)); selection = gimp_image_get_mask (image); histogram = gimp_histogram_new (FALSE); gimp_drawable_calculate_histogram (drawable, histogram, FALSE); equalize = gegl_node_new_child (NULL, "operation", "gimp:equalize", "histogram", histogram, NULL); if (! mask_only) gimp_selection_suspend (GIMP_SELECTION (selection)); gimp_drawable_apply_operation (drawable, NULL, C_("undo-type", "Equalize"), equalize); if (! mask_only) gimp_selection_resume (GIMP_SELECTION (selection)); g_object_unref (equalize); g_object_unref (histogram); }