fc9da4c9a3
Change GimpHistogram to take a "gboolean linear" parameter and always honor that parameter, so both kinds of histograms can now be created for all drawables. Add a horrible "Linear" toggle to the histogram dockable which always defaults to the active layer's actual pixel format, but can be switched at any time. This UI is ugly and needs to change. On the PDB, default to gamma-corrected if the plug-in is unaware of higher precision, and to the drawable's native pixel format otherwise. Other places using histograms (e.g. levels, curves) are unchanged.
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "gimpdrawable.h"
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#include "gimpdrawable-equalize.h"
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#include "gimpdrawable-histogram.h"
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#include "gimpdrawable-operation.h"
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#include "gimphistogram.h"
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#include "gimpimage.h"
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#include "gimpselection.h"
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#include "gimp-intl.h"
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void
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gimp_drawable_equalize (GimpDrawable *drawable,
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gboolean mask_only)
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{
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GimpImage *image;
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GimpChannel *selection;
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GimpHistogram *hist;
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GeglNode *equalize;
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g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
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g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
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image = gimp_item_get_image (GIMP_ITEM (drawable));
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selection = gimp_image_get_mask (image);
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hist = gimp_histogram_new (FALSE);
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gimp_drawable_calculate_histogram (drawable, hist);
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equalize = gegl_node_new_child (NULL,
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"operation", "gimp:equalize",
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"histogram", hist,
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NULL);
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if (! mask_only)
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gimp_selection_suspend (GIMP_SELECTION (selection));
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gimp_drawable_apply_operation (drawable, NULL,
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C_("undo-type", "Equalize"),
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equalize);
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if (! mask_only)
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gimp_selection_resume (GIMP_SELECTION (selection));
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g_object_unref (equalize);
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g_object_unref (hist);
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}
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