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gimp/app/core/gimpdrawable-edit.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 <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "core-types.h"
#include "operations/layer-modes/gimp-layer-modes.h"
#include "gegl/gimp-gegl-loops.h"
#include "gimpchannel.h"
#include "core/gimpcontainer.h"
#include "gimpdrawable.h"
#include "gimpdrawable-edit.h"
#include "core/gimpdrawable-filters.h"
#include "gimpdrawablefilter.h"
#include "gimpcontext.h"
#include "gimpfilloptions.h"
#include "gimpimage.h"
#include "gimppattern.h"
#include "gimptempbuf.h"
#include "gimp-intl.h"
/* local function prototypes */
static gboolean gimp_drawable_edit_can_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options);
static void gimp_drawable_edit_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options,
const gchar *undo_desc);
/* private functions */
static gboolean
gimp_drawable_edit_can_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options)
{
GimpImage *image;
GimpContext *context;
gdouble opacity;
GimpComponentMask affect;
GimpLayerMode mode;
GimpLayerCompositeMode composite_mode;
GimpLayerCompositeRegion composite_region;
image = gimp_item_get_image (GIMP_ITEM (drawable));
context = GIMP_CONTEXT (options);
opacity = gimp_context_get_opacity (context);
affect = gimp_drawable_get_active_mask (drawable);
mode = gimp_context_get_paint_mode (context);
composite_mode = gimp_layer_mode_get_paint_composite_mode (mode);
composite_region = gimp_layer_mode_get_included_region (mode, composite_mode);
if (gimp_channel_is_empty (gimp_image_get_mask (image)) &&
opacity == GIMP_OPACITY_OPAQUE &&
affect == GIMP_COMPONENT_MASK_ALL &&
gimp_layer_mode_is_trivial (mode) &&
(! gimp_layer_mode_is_subtractive (mode) ^
! (composite_region & GIMP_LAYER_COMPOSITE_REGION_SOURCE)))
{
switch (gimp_fill_options_get_style (options))
{
case GIMP_FILL_STYLE_FG_COLOR:
case GIMP_FILL_STYLE_BG_COLOR:
return TRUE;
case GIMP_FILL_STYLE_PATTERN:
{
GimpPattern *pattern;
GimpTempBuf *mask;
const Babl *format;
pattern = gimp_context_get_pattern (context);
mask = gimp_pattern_get_mask (pattern);
format = gimp_temp_buf_get_format (mask);
return ! babl_format_has_alpha (format);
}
}
}
return FALSE;
}
static void
gimp_drawable_edit_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options,
const gchar *undo_desc)
{
GeglBuffer *buffer;
GimpContext *context;
GimpLayerMode mode;
gint width;
gint height;
buffer = gimp_drawable_get_buffer (drawable);
context = GIMP_CONTEXT (options);
mode = gimp_context_get_paint_mode (context);
width = gimp_item_get_width (GIMP_ITEM (drawable));
height = gimp_item_get_height (GIMP_ITEM (drawable));
gimp_drawable_push_undo (drawable, undo_desc,
NULL, 0, 0, width, height);
if (! gimp_layer_mode_is_subtractive (mode))
gimp_fill_options_fill_buffer (options, drawable, buffer, 0, 0);
else
gimp_gegl_clear (buffer, NULL);
}
/* public functions */
void
gimp_drawable_edit_clear (GimpDrawable *drawable,
GimpContext *context)
{
GimpFillOptions *options;
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_CONTEXT (context));
options = gimp_fill_options_new (context->gimp, NULL, FALSE);
if (gimp_drawable_has_alpha (drawable))
gimp_fill_options_set_by_fill_type (options, context,
GIMP_FILL_TRANSPARENT, NULL);
else
gimp_fill_options_set_by_fill_type (options, context,
GIMP_FILL_BACKGROUND, NULL);
gimp_drawable_edit_fill (drawable, options, C_("undo-type", "Clear"));
g_object_unref (options);
}
void
gimp_drawable_edit_fill (GimpDrawable *drawable,
GimpFillOptions *options,
const gchar *undo_desc)
{
GimpContext *context;
gint x, y, width, height;
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));
if (! gimp_item_mask_intersect (GIMP_ITEM (drawable),
&x, &y, &width, &height))
{
return; /* nothing to do, but the fill succeeded */
}
context = GIMP_CONTEXT (options);
if (gimp_layer_mode_is_alpha_only (gimp_context_get_paint_mode (context)))
{
if (! gimp_drawable_has_alpha (drawable) ||
! (gimp_drawable_get_active_mask (drawable) &
GIMP_COMPONENT_MASK_ALPHA))
{
return; /* nothing to do, but the fill succeeded */
}
}
if (! undo_desc)
undo_desc = gimp_fill_options_get_undo_desc (options);
/* check if we can fill the drawable's buffer directly */
if (gimp_drawable_edit_can_fill_direct (drawable, options))
{
gimp_drawable_edit_fill_direct (drawable, options, undo_desc);
gimp_drawable_update (drawable, x, y, width, height);
}
else
{
GeglNode *operation;
GimpDrawableFilter *filter;
gdouble opacity;
GimpLayerMode mode;
GimpLayerCompositeMode composite_mode;
GimpContainer *filter_stack;
opacity = gimp_context_get_opacity (context);
mode = gimp_context_get_paint_mode (context);
composite_mode = gimp_layer_mode_get_paint_composite_mode (mode);
operation = gegl_node_new_child (NULL,
"operation", "gimp:fill-source",
"options", options,
"drawable", drawable,
"pattern-offset-x", -x,
"pattern-offset-y", -y,
NULL);
filter = gimp_drawable_filter_new (drawable, undo_desc, operation, NULL);
gimp_drawable_filter_set_opacity (filter, opacity);
gimp_drawable_filter_set_mode (filter,
mode,
GIMP_LAYER_COLOR_SPACE_AUTO,
GIMP_LAYER_COLOR_SPACE_AUTO,
composite_mode);
gimp_drawable_filter_apply (filter, NULL);
/* Move to bottom of filter stack */
filter_stack = gimp_drawable_get_filters (drawable);
if (filter_stack)
gimp_container_reorder (filter_stack, GIMP_OBJECT (filter),
gimp_container_get_n_children (filter_stack) - 1);
gimp_drawable_filter_commit (filter, FALSE, NULL, FALSE);
g_object_unref (filter);
g_object_unref (operation);
}
}
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