mirror of https://github.com/GNOME/gimp.git
194 lines
6.4 KiB
C
194 lines
6.4 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 <cairo.h>
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpcolor/gimpcolor.h"
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#include "core-types.h"
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#include "gegl/gimp-gegl-apply-operation.h"
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#include "gegl/gimp-gegl-mask.h"
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#include "gegl/gimp-gegl-mask-combine.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "gimp.h"
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#include "gimpchannel.h"
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#include "gimpdrawable.h"
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#include "gimpdrawable-bucket-fill.h"
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#include "gimpfilloptions.h"
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#include "gimpimage.h"
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#include "gimppickable.h"
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#include "gimppickable-contiguous-region.h"
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#include "gimp-intl.h"
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/* public functions */
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void
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gimp_drawable_bucket_fill (GimpDrawable *drawable,
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GimpFillOptions *options,
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gboolean fill_transparent,
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GimpSelectCriterion fill_criterion,
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gdouble threshold,
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gboolean sample_merged,
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gboolean diagonal_neighbors,
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gdouble seed_x,
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gdouble seed_y)
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{
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GimpImage *image;
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GimpPickable *pickable;
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GeglBuffer *buffer;
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GeglBuffer *mask_buffer;
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gboolean antialias;
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gint x, y, width, height;
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gint mask_offset_x = 0;
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gint mask_offset_y = 0;
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gint sel_x, sel_y, sel_width, sel_height;
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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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g_return_if_fail (GIMP_IS_FILL_OPTIONS (options));
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image = gimp_item_get_image (GIMP_ITEM (drawable));
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if (! gimp_item_mask_intersect (GIMP_ITEM (drawable),
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&sel_x, &sel_y, &sel_width, &sel_height))
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return;
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gimp_set_busy (image->gimp);
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if (sample_merged)
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pickable = GIMP_PICKABLE (image);
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else
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pickable = GIMP_PICKABLE (drawable);
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antialias = gimp_fill_options_get_antialias (options);
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/* Do a seed bucket fill...To do this, calculate a new
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* contiguous region.
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*/
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mask_buffer = gimp_pickable_contiguous_region_by_seed (pickable,
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antialias,
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threshold,
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fill_transparent,
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fill_criterion,
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diagonal_neighbors,
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(gint) seed_x,
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(gint) seed_y);
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gimp_gegl_mask_bounds (mask_buffer, &x, &y, &width, &height);
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width -= x;
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height -= y;
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/* If there is a selection, inersect the region bounds
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* with the selection bounds, to avoid processing areas
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* that are going to be masked out anyway. The actual
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* intersection of the fill region with the mask data
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* happens when combining the fill buffer, in
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* gimp_drawable_apply_buffer().
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*/
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if (! gimp_channel_is_empty (gimp_image_get_mask (image)))
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{
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gint off_x = 0;
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gint off_y = 0;
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if (sample_merged)
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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if (! gimp_rectangle_intersect (x, y, width, height,
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sel_x + off_x, sel_y + off_y,
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sel_width, sel_height,
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&x, &y, &width, &height))
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{
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/* The fill region and the selection are disjoint; bail. */
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g_object_unref (mask_buffer);
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gimp_unset_busy (image->gimp);
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return;
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}
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}
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/* make sure we handle the mask correctly if it was sample-merged */
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if (sample_merged)
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{
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GimpItem *item = GIMP_ITEM (drawable);
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gint off_x, off_y;
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/* Limit the channel bounds to the drawable's extents */
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gimp_item_get_offset (item, &off_x, &off_y);
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gimp_rectangle_intersect (x, y, width, height,
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off_x, off_y,
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gimp_item_get_width (item),
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gimp_item_get_height (item),
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&x, &y, &width, &height);
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mask_offset_x = x;
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mask_offset_y = y;
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/* translate mask bounds to drawable coords */
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x -= off_x;
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y -= off_y;
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}
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else
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{
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mask_offset_x = x;
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mask_offset_y = y;
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}
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buffer = gimp_fill_options_create_buffer (options, drawable,
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GEGL_RECTANGLE (0, 0,
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width, height));
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gimp_gegl_apply_opacity (buffer, NULL, NULL, buffer,
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mask_buffer,
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-mask_offset_x,
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-mask_offset_y,
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1.0);
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g_object_unref (mask_buffer);
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/* Apply it to the image */
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gimp_drawable_apply_buffer (drawable, buffer,
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GEGL_RECTANGLE (0, 0, width, height),
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TRUE, C_("undo-type", "Bucket Fill"),
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gimp_context_get_opacity (GIMP_CONTEXT (options)),
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gimp_context_get_paint_mode (GIMP_CONTEXT (options)),
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GIMP_LAYER_COLOR_SPACE_AUTO,
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GIMP_LAYER_COLOR_SPACE_AUTO,
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GIMP_LAYER_COMPOSITE_AUTO,
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NULL, x, y);
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g_object_unref (buffer);
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gimp_drawable_update (drawable, x, y, width, height);
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gimp_unset_busy (image->gimp);
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}
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