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gimp/app/core/gimpdrawable-fill.c

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/* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "gegl/gimp-babl.h"
#include "gegl/gimp-gegl-apply-operation.h"
#include "gegl/gimp-gegl-loops.h"
#include "gegl/gimp-gegl-utils.h"
#include "operations/layer-modes/gimp-layer-modes.h"
#include "gimp-utils.h"
#include "gimpbezierdesc.h"
#include "gimpchannel.h"
#include "gimpdrawable-fill.h"
#include "gimperror.h"
#include "gimpfilloptions.h"
#include "gimpimage.h"
#include "gimppattern.h"
#include "gimppickable.h"
#include "gimpscanconvert.h"
#include "vectors/gimppath.h"
#include "gimp-intl.h"
/* public functions */
void
gimp_drawable_fill (GimpDrawable *drawable,
GimpContext *context,
GimpFillType fill_type)
{
GeglColor *color;
GimpPattern *pattern;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_CONTEXT (context));
if (fill_type == GIMP_FILL_TRANSPARENT &&
! gimp_drawable_has_alpha (drawable))
{
fill_type = GIMP_FILL_BACKGROUND;
}
if (! gimp_get_fill_params (context, fill_type, &color, &pattern, NULL))
return;
gimp_drawable_fill_buffer (drawable,
gimp_drawable_get_buffer (drawable),
color, pattern, 0, 0);
gimp_drawable_update (drawable, 0, 0, -1, -1);
g_clear_object (&color);
}
void
gimp_drawable_fill_buffer (GimpDrawable *drawable,
GeglBuffer *buffer,
GeglColor *color,
GimpPattern *pattern,
gint pattern_offset_x,
gint pattern_offset_y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
g_return_if_fail (GEGL_IS_COLOR (color) || pattern != NULL);
g_return_if_fail (pattern == NULL || GIMP_IS_PATTERN (pattern));
if (pattern)
{
GeglBuffer *src_buffer;
GeglBuffer *dest_buffer;
GimpColorProfile *src_profile;
GimpColorProfile *dest_profile;
src_buffer = gimp_pattern_create_buffer (pattern);
src_profile = gimp_babl_format_get_color_profile (
gegl_buffer_get_format (src_buffer));
dest_profile = gimp_color_managed_get_color_profile (
GIMP_COLOR_MANAGED (drawable));
if (gimp_color_transform_can_gegl_copy (src_profile, dest_profile))
{
dest_buffer = g_object_ref (src_buffer);
}
else
{
dest_buffer = gegl_buffer_new (gegl_buffer_get_extent (src_buffer),
gegl_buffer_get_format (buffer));
gimp_gegl_convert_color_profile (
src_buffer, NULL, src_profile,
dest_buffer, NULL, dest_profile,
GIMP_COLOR_RENDERING_INTENT_PERCEPTUAL,
TRUE,
NULL);
}
g_object_unref (src_profile);
gegl_buffer_set_pattern (buffer, NULL, dest_buffer,
pattern_offset_x, pattern_offset_y);
g_object_unref (src_buffer);
g_object_unref (dest_buffer);
}
else
{
if (! gimp_drawable_has_alpha (drawable))
{
color = gegl_color_duplicate (color);
gimp_color_set_alpha (color, 1.0);
}
gegl_buffer_set_color (buffer, NULL, color);
if (! gimp_drawable_has_alpha (drawable))
g_object_unref (color);
}
}
void
gimp_drawable_fill_boundary (GimpDrawable *drawable,
GimpFillOptions *options,
const GimpBoundSeg *bound_segs,
gint n_bound_segs,
gint offset_x,
gint offset_y,
gboolean push_undo)
{
GimpScanConvert *scan_convert;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (GIMP_IS_FILL_OPTIONS (options));
g_return_if_fail (bound_segs == NULL || n_bound_segs != 0);
g_return_if_fail (gimp_fill_options_get_style (options) !=
GIMP_FILL_STYLE_PATTERN ||
gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL);
scan_convert = gimp_scan_convert_new_from_boundary (bound_segs, n_bound_segs,
offset_x, offset_y);
if (scan_convert)
{
gimp_drawable_fill_scan_convert (drawable, options,
scan_convert, push_undo);
gimp_scan_convert_free (scan_convert);
}
}
gboolean
gimp_drawable_fill_path (GimpDrawable *drawable,
GimpFillOptions *options,
GimpPath *vectors,
gboolean push_undo,
GError **error)
{
const GimpBezierDesc *bezier;
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_FILL_OPTIONS (options), FALSE);
g_return_val_if_fail (GIMP_IS_PATH (vectors), FALSE);
g_return_val_if_fail (gimp_fill_options_get_style (options) !=
GIMP_FILL_STYLE_PATTERN ||
gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL,
FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
bezier = gimp_path_get_bezier (vectors);
if (bezier && bezier->num_data > 4)
{
GimpScanConvert *scan_convert = gimp_scan_convert_new ();
gimp_scan_convert_add_bezier (scan_convert, bezier);
gimp_drawable_fill_scan_convert (drawable, options,
scan_convert, push_undo);
gimp_scan_convert_free (scan_convert);
return TRUE;
}
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Not enough points to fill"));
return FALSE;
}
void
gimp_drawable_fill_scan_convert (GimpDrawable *drawable,
GimpFillOptions *options,
GimpScanConvert *scan_convert,
gboolean push_undo)
{
GimpContext *context;
GeglBuffer *buffer;
GeglBuffer *mask_buffer;
gint x, y, w, h;
gint off_x;
gint off_y;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (GIMP_IS_FILL_OPTIONS (options));
g_return_if_fail (scan_convert != NULL);
g_return_if_fail (gimp_fill_options_get_style (options) !=
GIMP_FILL_STYLE_PATTERN ||
gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL);
context = GIMP_CONTEXT (options);
if (! gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &w, &h))
return;
/* fill a 1-bpp GeglBuffer with black, this will describe the shape
* of the stroke.
*/
mask_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, w, h),
babl_format ("Y u8"));
/* render the stroke into it */
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
gimp_scan_convert_render (scan_convert, mask_buffer,
x + off_x, y + off_y,
gimp_fill_options_get_antialias (options));
buffer = gimp_fill_options_create_buffer (options, drawable,
GEGL_RECTANGLE (0, 0, w, h),
-x, -y);
gimp_gegl_apply_opacity (buffer, NULL, NULL, buffer,
mask_buffer, 0, 0, 1.0);
g_object_unref (mask_buffer);
/* Apply to drawable */
gimp_drawable_apply_buffer (drawable, buffer,
GEGL_RECTANGLE (0, 0, w, h),
push_undo, C_("undo-type", "Render Stroke"),
gimp_context_get_opacity (context),
gimp_context_get_paint_mode (context),
GIMP_LAYER_COLOR_SPACE_AUTO,
GIMP_LAYER_COLOR_SPACE_AUTO,
gimp_layer_mode_get_paint_composite_mode (
gimp_context_get_paint_mode (context)),
NULL, x, y);
g_object_unref (buffer);
gimp_drawable_update (drawable, x, y, w, h);
}
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