void
gimp_channel_combine_buffer (GimpChannel *mask,
GeglBuffer *add_on_buffer,
GimpChannelOps op,
gint off_x,
gint off_y)
{
GimpChannelCombineData data;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
g_return_if_fail (GEGL_IS_BUFFER (add_on_buffer));
if (gimp_channel_combine_start (mask, op,
GEGL_RECTANGLE (
off_x,
off_y,
gegl_buffer_get_width (add_on_buffer),
gegl_buffer_get_height (add_on_buffer)),
FALSE, FALSE, &data))
{
GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
gimp_gegl_mask_combine_buffer (buffer, add_on_buffer, op,
off_x, off_y);
}
gimp_channel_combine_end (mask, &data);
}
void
gimp_channel_combine_buffer (GimpChannel *mask,
GeglBuffer *add_on_buffer,
GimpChannelOps op,
gint off_x,
gint off_y)
{
GeglBuffer *buffer;
gint x, y, w, h;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
g_return_if_fail (GEGL_IS_BUFFER (add_on_buffer));
buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
if (! gimp_gegl_mask_combine_buffer (buffer, add_on_buffer,
op, off_x, off_y))
return;
gimp_rectangle_intersect (off_x, off_y,
gegl_buffer_get_width (add_on_buffer),
gegl_buffer_get_height (add_on_buffer),
0, 0,
gimp_item_get_width (GIMP_ITEM (mask)),
gimp_item_get_height (GIMP_ITEM (mask)),
&x, &y, &w, &h);
mask->bounds_known = FALSE;
gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
}
void
gimp_channel_select_buffer (GimpChannel *channel,
const gchar *undo_desc,
GeglBuffer *add_on,
gint offset_x,
gint offset_y,
GimpChannelOps op,
gboolean feather,
gdouble feather_radius_x,
gdouble feather_radius_y)
{
g_return_if_fail (GIMP_IS_CHANNEL (channel));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (channel)));
g_return_if_fail (undo_desc != NULL);
g_return_if_fail (GEGL_IS_BUFFER (add_on));
gimp_channel_push_undo (channel, undo_desc);
/* if applicable, replace the current selection */
if (op == GIMP_CHANNEL_OP_REPLACE)
gimp_channel_clear (channel, NULL, FALSE);
if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on2;
add_on2 = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item)),
babl_format ("Y float"));
gimp_gegl_mask_combine_buffer (add_on2, add_on,
GIMP_CHANNEL_OP_ADD,
offset_x, offset_y);
if (feather)
gimp_gegl_apply_feather (add_on2, NULL, NULL, add_on2, NULL,
feather_radius_x,
feather_radius_y);
gimp_channel_combine_buffer (channel, add_on2, op, 0, 0);
g_object_unref (add_on2);
}
else
{
gimp_channel_combine_buffer (channel, add_on, op, offset_x, offset_y);
}
}
/**
* gimp_drawable_get_line_art_fill_buffer:
* @drawable: the #GimpDrawable to edit.
* @line_art: the #GimpLineArt computed as fill source.
* @options: the #GimpFillOptions.
* @sample_merged:
* @seed_x: X coordinate to start the fill.
* @seed_y: Y coordinate to start the fill.
* @mask_buffer: mask of the fill in-progress when in an interactive
* filling process. Set to NULL if you need a one-time
* fill.
* @mask_x: returned x bound of @mask_buffer.
* @mask_y: returned x bound of @mask_buffer.
* @mask_width: returned width bound of @mask_buffer.
* @mask_height: returned height bound of @mask_buffer.
*
* Creates the fill buffer for a bucket fill operation on @drawable
* based on @line_art and @options, without actually applying it.
* If @mask_buffer is not NULL, the intermediate fill mask will also be
* returned. This fill mask can later be reused in successive calls to
* gimp_drawable_get_bucket_fill_buffer() for interactive filling.
*
* Returns: a fill buffer which can be directly applied to @drawable, or
* used in a drawable filter as preview.
*/
GeglBuffer *
gimp_drawable_get_line_art_fill_buffer (GimpDrawable *drawable,
GimpLineArt *line_art,
GimpFillOptions *options,
gboolean sample_merged,
gdouble seed_x,
gdouble seed_y,
GeglBuffer **mask_buffer,
gdouble *mask_x,
gdouble *mask_y,
gint *mask_width,
gint *mask_height)
{
GimpImage *image;
GeglBuffer *buffer;
GeglBuffer *new_mask;
gint x, y, width, height;
gint mask_offset_x = 0;
gint mask_offset_y = 0;
gint sel_x, sel_y, sel_width, sel_height;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_FILL_OPTIONS (options), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
if (! gimp_item_mask_intersect (GIMP_ITEM (drawable),
&sel_x, &sel_y, &sel_width, &sel_height))
return NULL;
if (mask_buffer && *mask_buffer)
{
gfloat pixel;
gegl_buffer_sample (*mask_buffer, seed_x, seed_y, NULL, &pixel,
babl_format ("Y float"),
GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
if (pixel != 0.0)
/* Already selected. This seed won't change the selection. */
return NULL;
}
gimp_set_busy (image->gimp);
/* Do a seed bucket fill...To do this, calculate a new
* contiguous region.
*/
new_mask = gimp_pickable_contiguous_region_by_line_art (NULL, line_art,
(gint) seed_x,
(gint) seed_y);
if (mask_buffer && *mask_buffer)
{
gimp_gegl_mask_combine_buffer (new_mask, *mask_buffer,
GIMP_CHANNEL_OP_ADD, 0, 0);
g_object_unref (*mask_buffer);
}
if (mask_buffer)
*mask_buffer = new_mask;
gimp_gegl_mask_bounds (new_mask, &x, &y, &width, &height);
width -= x;
height -= y;
/* If there is a selection, intersect the region bounds
* with the selection bounds, to avoid processing areas
* that are going to be masked out anyway. The actual
* intersection of the fill region with the mask data
* happens when combining the fill buffer, in
* gimp_drawable_apply_buffer().
*/
if (! gimp_channel_is_empty (gimp_image_get_mask (image)))
{
gint off_x = 0;
gint off_y = 0;
if (sample_merged)
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
if (! gimp_rectangle_intersect (x, y, width, height,
sel_x + off_x, sel_y + off_y,
sel_width, sel_height,
&x, &y, &width, &height))
{
if (! mask_buffer)
g_object_unref (new_mask);
/* The fill region and the selection are disjoint; bail. */
gimp_unset_busy (image->gimp);
return NULL;
}
}
/* make sure we handle the mask correctly if it was sample-merged */
if (sample_merged)
{
GimpItem *item = GIMP_ITEM (drawable);
gint off_x, off_y;
/* Limit the channel bounds to the drawable's extents */
gimp_item_get_offset (item, &off_x, &off_y);
gimp_rectangle_intersect (x, y, width, height,
off_x, off_y,
gimp_item_get_width (item),
gimp_item_get_height (item),
&x, &y, &width, &height);
mask_offset_x = x;
mask_offset_y = y;
/* translate mask bounds to drawable coords */
x -= off_x;
y -= off_y;
}
else
{
mask_offset_x = x;
mask_offset_y = y;
}
buffer = gimp_fill_options_create_buffer (options, drawable,
GEGL_RECTANGLE (0, 0,
width, height),
-x, -y);
gimp_gegl_apply_opacity (buffer, NULL, NULL, buffer, new_mask,
-mask_offset_x, -mask_offset_y, 1.0);
if (gimp_fill_options_get_antialias (options))
{
/* Antialias for the line art algorithm is not applied during mask
* creation because it is not based on individual pixel colors.
* Instead we just want to apply it on the borders of the mask at
* the end (since the mask can evolve, we don't want to actually
* touch it, but only the intermediate results).
*/
GeglNode *graph;
GeglNode *input;
GeglNode *op;
graph = gegl_node_new ();
input = gegl_node_new_child (graph,
"operation", "gegl:buffer-source",
"buffer", buffer,
NULL);
op = gegl_node_new_child (graph,
"operation", "gegl:gaussian-blur",
"std-dev-x", 0.5,
"std-dev-y", 0.5,
NULL);
gegl_node_connect_to (input, "output", op, "input");
gegl_node_blit_buffer (op, buffer, NULL, 0,
GEGL_ABYSS_NONE);
g_object_unref (graph);
}
if (mask_x)
*mask_x = x;
if (mask_y)
*mask_y = y;
if (mask_width)
*mask_width = width;
if (mask_height)
*mask_height = height;
if (! mask_buffer)
g_object_unref (new_mask);
gimp_unset_busy (image->gimp);
return buffer;
}
/**
* gimp_drawable_get_bucket_fill_buffer:
* @drawable: the #GimpDrawable to edit.
* @options:
* @fill_transparent:
* @fill_criterion:
* @threshold:
* @sample_merged:
* @diagonal_neighbors:
* @seed_x: X coordinate to start the fill.
* @seed_y: Y coordinate to start the fill.
* @mask_buffer: mask of the fill in-progress when in an interactive
* filling process. Set to NULL if you need a one-time
* fill.
* @mask_x: returned x bound of @mask_buffer.
* @mask_y: returned x bound of @mask_buffer.
* @mask_width: returned width bound of @mask_buffer.
* @mask_height: returned height bound of @mask_buffer.
*
* Creates the fill buffer for a bucket fill operation on @drawable,
* without actually applying it (if you want to apply it directly as a
* one-time operation, use gimp_drawable_bucket_fill() instead). If
* @mask_buffer is not NULL, the intermediate fill mask will also be
* returned. This fill mask can later be reused in successive calls to
* gimp_drawable_get_bucket_fill_buffer() for interactive filling.
*
* Returns: a fill buffer which can be directly applied to @drawable, or
* used in a drawable filter as preview.
*/
GeglBuffer *
gimp_drawable_get_bucket_fill_buffer (GimpDrawable *drawable,
GimpFillOptions *options,
gboolean fill_transparent,
GimpSelectCriterion fill_criterion,
gdouble threshold,
gboolean sample_merged,
gboolean diagonal_neighbors,
gdouble seed_x,
gdouble seed_y,
GeglBuffer **mask_buffer,
gdouble *mask_x,
gdouble *mask_y,
gint *mask_width,
gint *mask_height)
{
GimpImage *image;
GimpPickable *pickable;
GeglBuffer *buffer;
GeglBuffer *new_mask;
gboolean antialias;
gint x, y, width, height;
gint mask_offset_x = 0;
gint mask_offset_y = 0;
gint sel_x, sel_y, sel_width, sel_height;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_FILL_OPTIONS (options), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
if (! gimp_item_mask_intersect (GIMP_ITEM (drawable),
&sel_x, &sel_y, &sel_width, &sel_height))
return NULL;
if (mask_buffer && *mask_buffer && threshold == 0.0)
{
gfloat pixel;
gegl_buffer_sample (*mask_buffer, seed_x, seed_y, NULL, &pixel,
babl_format ("Y float"),
GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
if (pixel != 0.0)
/* Already selected. This seed won't change the selection. */
return NULL;
}
gimp_set_busy (image->gimp);
if (sample_merged)
pickable = GIMP_PICKABLE (image);
else
pickable = GIMP_PICKABLE (drawable);
antialias = gimp_fill_options_get_antialias (options);
/* Do a seed bucket fill...To do this, calculate a new
* contiguous region.
*/
new_mask = gimp_pickable_contiguous_region_by_seed (pickable,
antialias,
threshold,
fill_transparent,
fill_criterion,
diagonal_neighbors,
(gint) seed_x,
(gint) seed_y);
if (mask_buffer && *mask_buffer)
{
gimp_gegl_mask_combine_buffer (new_mask, *mask_buffer,
GIMP_CHANNEL_OP_ADD, 0, 0);
g_object_unref (*mask_buffer);
}
if (mask_buffer)
*mask_buffer = new_mask;
gimp_gegl_mask_bounds (new_mask, &x, &y, &width, &height);
width -= x;
height -= y;
/* If there is a selection, intersect the region bounds
* with the selection bounds, to avoid processing areas
* that are going to be masked out anyway. The actual
* intersection of the fill region with the mask data
* happens when combining the fill buffer, in
* gimp_drawable_apply_buffer().
*/
if (! gimp_channel_is_empty (gimp_image_get_mask (image)))
{
gint off_x = 0;
gint off_y = 0;
if (sample_merged)
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
if (! gimp_rectangle_intersect (x, y, width, height,
sel_x + off_x, sel_y + off_y,
sel_width, sel_height,
&x, &y, &width, &height))
{
if (! mask_buffer)
g_object_unref (new_mask);
/* The fill region and the selection are disjoint; bail. */
gimp_unset_busy (image->gimp);
return NULL;
}
}
/* make sure we handle the mask correctly if it was sample-merged */
if (sample_merged)
{
GimpItem *item = GIMP_ITEM (drawable);
gint off_x, off_y;
/* Limit the channel bounds to the drawable's extents */
gimp_item_get_offset (item, &off_x, &off_y);
gimp_rectangle_intersect (x, y, width, height,
off_x, off_y,
gimp_item_get_width (item),
gimp_item_get_height (item),
&x, &y, &width, &height);
mask_offset_x = x;
mask_offset_y = y;
/* translate mask bounds to drawable coords */
x -= off_x;
y -= off_y;
}
else
{
mask_offset_x = x;
mask_offset_y = y;
}
buffer = gimp_fill_options_create_buffer (options, drawable,
GEGL_RECTANGLE (0, 0,
width, height),
-x, -y);
gimp_gegl_apply_opacity (buffer, NULL, NULL, buffer, new_mask,
-mask_offset_x, -mask_offset_y, 1.0);
if (mask_x)
*mask_x = x;
if (mask_y)
*mask_y = y;
if (mask_width)
*mask_width = width;
if (mask_height)
*mask_height = height;
if (! mask_buffer)
g_object_unref (new_mask);
gimp_unset_busy (image->gimp);
return buffer;
}
static void
gimp_drawable_bucket_fill_internal (GimpDrawable *drawable,
GimpFillType fill_type,
gint paint_mode,
gdouble opacity,
gboolean fill_transparent,
GimpSelectCriterion fill_criterion,
gdouble threshold,
gboolean sample_merged,
gboolean diagonal_neighbors,
gdouble x,
gdouble y,
const GimpRGB *color,
GimpPattern *pattern)
{
GimpImage *image;
GimpPickable *pickable;
GeglBuffer *buffer;
GeglBuffer *mask_buffer;
gint x1, y1, x2, y2;
gint mask_offset_x = 0;
gint mask_offset_y = 0;
gboolean selection;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (fill_type != GIMP_FILL_PATTERN ||
GIMP_IS_PATTERN (pattern));
g_return_if_fail (fill_type == GIMP_FILL_PATTERN ||
color != NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
selection = gimp_item_mask_bounds (GIMP_ITEM (drawable), &x1, &y1, &x2, &y2);
if ((x1 == x2) || (y1 == y2))
return;
gimp_set_busy (image->gimp);
if (sample_merged)
pickable = GIMP_PICKABLE (image);
else
pickable = GIMP_PICKABLE (drawable);
/* Do a seed bucket fill...To do this, calculate a new
* contiguous region. If there is a selection, calculate the
* intersection of this region with the existing selection.
*/
mask_buffer = gimp_pickable_contiguous_region_by_seed (pickable,
TRUE,
threshold,
fill_transparent,
fill_criterion,
diagonal_neighbors,
(gint) x,
(gint) y);
if (selection)
{
GimpDrawable *sel;
gint off_x = 0;
gint off_y = 0;
if (! sample_merged)
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
sel = GIMP_DRAWABLE (gimp_image_get_mask (image));
gimp_gegl_mask_combine_buffer (mask_buffer,
gimp_drawable_get_buffer (sel),
GIMP_CHANNEL_OP_INTERSECT,
-off_x, -off_y);
}
gimp_gegl_mask_bounds (mask_buffer, &x1, &y1, &x2, &y2);
/* make sure we handle the mask correctly if it was sample-merged */
if (sample_merged)
{
GimpItem *item = GIMP_ITEM (drawable);
gint off_x, off_y;
/* Limit the channel bounds to the drawable's extents */
gimp_item_get_offset (item, &off_x, &off_y);
x1 = CLAMP (x1, off_x, (off_x + gimp_item_get_width (item)));
y1 = CLAMP (y1, off_y, (off_y + gimp_item_get_height (item)));
x2 = CLAMP (x2, off_x, (off_x + gimp_item_get_width (item)));
y2 = CLAMP (y2, off_y, (off_y + gimp_item_get_height (item)));
mask_offset_x = x1;
mask_offset_y = y1;
/* translate mask bounds to drawable coords */
x1 -= off_x;
y1 -= off_y;
x2 -= off_x;
y2 -= off_y;
}
else
{
mask_offset_x = x1;
mask_offset_y = y1;
}
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, x2 - x1, y2 - y1),
gimp_drawable_get_format_with_alpha (drawable));
switch (fill_type)
{
case GIMP_FILL_FOREGROUND:
case GIMP_FILL_BACKGROUND:
case GIMP_FILL_WHITE:
case GIMP_FILL_TRANSPARENT:
{
GeglColor *gegl_color = gimp_gegl_color_new (color);
gegl_buffer_set_color (buffer, NULL, gegl_color);
g_object_unref (gegl_color);
}
break;
case GIMP_FILL_PATTERN:
{
GeglBuffer *pattern_buffer = gimp_pattern_create_buffer (pattern);
gegl_buffer_set_pattern (buffer, NULL, pattern_buffer, -x1, -y1);
g_object_unref (pattern_buffer);
}
break;
}
gimp_gegl_apply_opacity (buffer, NULL, NULL, buffer,
mask_buffer,
-mask_offset_x,
-mask_offset_y,
1.0);
g_object_unref (mask_buffer);
/* Apply it to the image */
gimp_drawable_apply_buffer (drawable, buffer,
GEGL_RECTANGLE (0, 0, x2 - x1, y2 - y1),
TRUE, C_("undo-type", "Bucket Fill"),
opacity, paint_mode,
NULL, x1, y1);
g_object_unref (buffer);
gimp_drawable_update (drawable, x1, y1, x2 - x1, y2 - y1);
gimp_unset_busy (image->gimp);
}
