gimp/app/core/gimpdrawable-floating-selection.c
Alx Sa a4cfa25822 core: Put floating selections under layer effects
Resolves #11147

Applying the same reordering code
in cbb1e816 to adding a floating selection.
When anchored, floating selections were also
merging down all layer effects onto the original
image. This patch places the float selection
under the layer effect when added, both to prevent
this and because it seems to be the expected
behavior based on user feedback.
2024-03-30 15:44:39 +00:00

523 lines
19 KiB
C

/* 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 <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "libgimpbase/gimpbase.h"
#include "core-types.h"
#include "gegl/gimpapplicator.h"
#include "gimpchannel.h"
#include "gimpcontainer.h"
#include "gimpdrawable-floating-selection.h"
#include "gimpdrawable-filters.h"
#include "gimpdrawable-private.h"
#include "gimpimage.h"
#include "gimplayer.h"
#include "gimp-log.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_drawable_remove_fs_filter (GimpDrawable *drawable);
static void gimp_drawable_sync_fs_filter (GimpDrawable *drawable);
static void gimp_drawable_fs_notify (GObject *object,
const GParamSpec *pspec,
GimpDrawable *drawable);
static void gimp_drawable_fs_lock_position_changed (GimpDrawable *signal_drawable,
GimpDrawable *drawable);
static void gimp_drawable_fs_format_changed (GimpDrawable *signal_drawable,
GimpDrawable *drawable);
static void gimp_drawable_fs_affect_changed (GimpImage *image,
GimpChannelType channel,
GimpDrawable *drawable);
static void gimp_drawable_fs_mask_changed (GimpImage *image,
GimpDrawable *drawable);
static void gimp_drawable_fs_visibility_changed (GimpLayer *fs,
GimpDrawable *drawable);
static void gimp_drawable_fs_excludes_backdrop_changed (GimpLayer *fs,
GimpDrawable *drawable);
static void gimp_drawable_fs_bounding_box_changed (GimpLayer *fs,
GimpDrawable *drawable);
static void gimp_drawable_fs_update (GimpLayer *fs,
gint x,
gint y,
gint width,
gint height,
GimpDrawable *drawable);
/* public functions */
GimpLayer *
gimp_drawable_get_floating_sel (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return drawable->private->floating_selection;
}
void
gimp_drawable_attach_floating_sel (GimpDrawable *drawable,
GimpLayer *fs)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (gimp_drawable_get_floating_sel (drawable) == NULL);
g_return_if_fail (GIMP_IS_LAYER (fs));
GIMP_LOG (FLOATING_SELECTION, "%s", G_STRFUNC);
image = gimp_item_get_image (GIMP_ITEM (drawable));
drawable->private->floating_selection = fs;
gimp_image_set_floating_selection (image, fs);
/* clear the selection */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (fs));
gimp_item_bind_visible_to_active (GIMP_ITEM (fs), FALSE);
gimp_filter_set_active (GIMP_FILTER (fs), FALSE);
_gimp_drawable_add_floating_sel_filter (drawable);
g_signal_connect (fs, "visibility-changed",
G_CALLBACK (gimp_drawable_fs_visibility_changed),
drawable);
g_signal_connect (fs, "excludes-backdrop-changed",
G_CALLBACK (gimp_drawable_fs_excludes_backdrop_changed),
drawable);
g_signal_connect (fs, "bounding-box-changed",
G_CALLBACK (gimp_drawable_fs_bounding_box_changed),
drawable);
g_signal_connect (fs, "update",
G_CALLBACK (gimp_drawable_fs_update),
drawable);
gimp_drawable_fs_update (fs,
0, 0,
gimp_item_get_width (GIMP_ITEM (fs)),
gimp_item_get_height (GIMP_ITEM (fs)),
drawable);
}
void
gimp_drawable_detach_floating_sel (GimpDrawable *drawable)
{
GimpImage *image;
GimpLayer *fs;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_drawable_get_floating_sel (drawable) != NULL);
GIMP_LOG (FLOATING_SELECTION, "%s", G_STRFUNC);
image = gimp_item_get_image (GIMP_ITEM (drawable));
fs = drawable->private->floating_selection;
gimp_drawable_remove_fs_filter (drawable);
g_signal_handlers_disconnect_by_func (fs,
gimp_drawable_fs_visibility_changed,
drawable);
g_signal_handlers_disconnect_by_func (fs,
gimp_drawable_fs_excludes_backdrop_changed,
drawable);
g_signal_handlers_disconnect_by_func (fs,
gimp_drawable_fs_bounding_box_changed,
drawable);
g_signal_handlers_disconnect_by_func (fs,
gimp_drawable_fs_update,
drawable);
gimp_drawable_fs_update (fs,
0, 0,
gimp_item_get_width (GIMP_ITEM (fs)),
gimp_item_get_height (GIMP_ITEM (fs)),
drawable);
gimp_item_bind_visible_to_active (GIMP_ITEM (fs), TRUE);
/* clear the selection */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (fs));
gimp_image_set_floating_selection (image, NULL);
drawable->private->floating_selection = NULL;
}
GimpFilter *
gimp_drawable_get_floating_sel_filter (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_drawable_get_floating_sel (drawable) != NULL, NULL);
/* Ensure that the graph is constructed before the filter is used.
* Otherwise, we rely on the projection to cause the graph to be
* constructed, which fails for images that aren't displayed.
*/
gimp_filter_get_node (GIMP_FILTER (drawable));
return drawable->private->fs_filter;
}
/* private functions */
void
_gimp_drawable_add_floating_sel_filter (GimpDrawable *drawable)
{
GimpDrawablePrivate *private = drawable->private;
GimpContainer *filters = gimp_drawable_get_filters (drawable);
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
GeglNode *node;
GeglNode *fs_source;
gint end_index;
gint index;
if (! private->source_node)
return;
private->fs_filter = gimp_filter_new (_("Floating Selection"));
gimp_viewable_set_icon_name (GIMP_VIEWABLE (private->fs_filter),
"gimp-floating-selection");
node = gimp_filter_get_node (private->fs_filter);
fs_source = gimp_drawable_get_source_node (GIMP_DRAWABLE (fs));
/* rip the fs' source node out of its graph */
if (fs->layer_offset_node)
{
gegl_node_disconnect (fs->layer_offset_node, "input");
gegl_node_remove_child (gimp_filter_get_node (GIMP_FILTER (fs)),
fs_source);
}
gegl_node_add_child (node, fs_source);
private->fs_applicator = gimp_applicator_new (node);
gimp_filter_set_applicator (private->fs_filter, private->fs_applicator);
gimp_applicator_set_cache (private->fs_applicator, TRUE);
private->fs_crop_node = gegl_node_new_child (node,
"operation", "gegl:nop",
NULL);
gegl_node_link (fs_source, private->fs_crop_node);
gegl_node_connect (private->fs_crop_node, "output",
node, "aux");
gimp_drawable_add_filter (drawable, private->fs_filter);
/* Move the floating selection below any non-destructive filters that
* may be active, so that it's directly affect the raw pixels. */
end_index = gimp_container_get_n_children (filters) - 1;
index =
gimp_container_get_child_index (filters, GIMP_OBJECT (private->fs_filter));
if (end_index > 0 && index != end_index)
gimp_container_reorder (filters, GIMP_OBJECT (private->fs_filter),
end_index);
g_signal_connect (fs, "notify",
G_CALLBACK (gimp_drawable_fs_notify),
drawable);
g_signal_connect (drawable, "notify::offset-x",
G_CALLBACK (gimp_drawable_fs_notify),
drawable);
g_signal_connect (drawable, "notify::offset-y",
G_CALLBACK (gimp_drawable_fs_notify),
drawable);
g_signal_connect (drawable, "lock-position-changed",
G_CALLBACK (gimp_drawable_fs_lock_position_changed),
drawable);
g_signal_connect (drawable, "format-changed",
G_CALLBACK (gimp_drawable_fs_format_changed),
drawable);
g_signal_connect (image, "component-active-changed",
G_CALLBACK (gimp_drawable_fs_affect_changed),
drawable);
g_signal_connect (image, "mask-changed",
G_CALLBACK (gimp_drawable_fs_mask_changed),
drawable);
gimp_drawable_sync_fs_filter (drawable);
}
/* private functions */
static void
gimp_drawable_remove_fs_filter (GimpDrawable *drawable)
{
GimpDrawablePrivate *private = drawable->private;
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
if (private->fs_filter)
{
GeglNode *node;
GeglNode *fs_source;
g_signal_handlers_disconnect_by_func (fs,
gimp_drawable_fs_notify,
drawable);
g_signal_handlers_disconnect_by_func (drawable,
gimp_drawable_fs_notify,
drawable);
g_signal_handlers_disconnect_by_func (drawable,
gimp_drawable_fs_lock_position_changed,
drawable);
g_signal_handlers_disconnect_by_func (drawable,
gimp_drawable_fs_format_changed,
drawable);
g_signal_handlers_disconnect_by_func (image,
gimp_drawable_fs_affect_changed,
drawable);
g_signal_handlers_disconnect_by_func (image,
gimp_drawable_fs_mask_changed,
drawable);
gimp_drawable_remove_filter (drawable, private->fs_filter);
node = gimp_filter_get_node (private->fs_filter);
fs_source = gimp_drawable_get_source_node (GIMP_DRAWABLE (fs));
gegl_node_remove_child (node, fs_source);
/* plug the fs' source node back into its graph */
if (fs->layer_offset_node)
{
gegl_node_add_child (gimp_filter_get_node (GIMP_FILTER (fs)),
fs_source);
gegl_node_link (fs_source, fs->layer_offset_node);
}
g_clear_object (&private->fs_filter);
g_clear_object (&private->fs_applicator);
private->fs_crop_node = NULL;
gimp_drawable_update_bounding_box (drawable);
}
}
static void
gimp_drawable_sync_fs_filter (GimpDrawable *drawable)
{
GimpDrawablePrivate *private = drawable->private;
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
GimpChannel *mask = gimp_image_get_mask (image);
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
gint off_x, off_y;
gint fs_off_x, fs_off_y;
gimp_filter_set_active (private->fs_filter,
gimp_item_get_visible (GIMP_ITEM (fs)));
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
gimp_item_get_offset (GIMP_ITEM (fs), &fs_off_x, &fs_off_y);
if (gimp_item_get_clip (GIMP_ITEM (drawable), GIMP_TRANSFORM_RESIZE_ADJUST) ==
GIMP_TRANSFORM_RESIZE_CLIP ||
! gimp_drawable_has_alpha (drawable))
{
gegl_node_set (
private->fs_crop_node,
"operation", "gegl:crop",
"x", (gdouble) (off_x - fs_off_x),
"y", (gdouble) (off_y - fs_off_y),
"width", (gdouble) gimp_item_get_width (GIMP_ITEM (drawable)),
"height", (gdouble) gimp_item_get_height (GIMP_ITEM (drawable)),
NULL);
}
else
{
gegl_node_set (
private->fs_crop_node,
"operation", "gegl:nop",
NULL);
}
gimp_applicator_set_apply_offset (private->fs_applicator,
fs_off_x - off_x,
fs_off_y - off_y);
if (gimp_channel_is_empty (mask))
{
gimp_applicator_set_mask_buffer (private->fs_applicator, NULL);
}
else
{
GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
gimp_applicator_set_mask_buffer (private->fs_applicator, buffer);
gimp_applicator_set_mask_offset (private->fs_applicator,
-off_x, -off_y);
}
gimp_applicator_set_opacity (private->fs_applicator,
gimp_layer_get_opacity (fs));
gimp_applicator_set_mode (private->fs_applicator,
gimp_layer_get_mode (fs),
gimp_layer_get_blend_space (fs),
gimp_layer_get_composite_space (fs),
gimp_layer_get_composite_mode (fs));
gimp_applicator_set_affect (private->fs_applicator,
gimp_drawable_get_active_mask (drawable));
gimp_applicator_set_output_format (private->fs_applicator,
gimp_drawable_get_format (drawable));
gimp_drawable_update_bounding_box (drawable);
}
static void
gimp_drawable_fs_notify (GObject *object,
const GParamSpec *pspec,
GimpDrawable *drawable)
{
if (! strcmp (pspec->name, "offset-x") ||
! strcmp (pspec->name, "offset-y") ||
! strcmp (pspec->name, "visible") ||
! strcmp (pspec->name, "mode") ||
! strcmp (pspec->name, "blend-space") ||
! strcmp (pspec->name, "composite-space") ||
! strcmp (pspec->name, "composite-mode") ||
! strcmp (pspec->name, "opacity"))
{
gimp_drawable_sync_fs_filter (drawable);
}
}
static void
gimp_drawable_fs_lock_position_changed (GimpDrawable *signal_drawable,
GimpDrawable *drawable)
{
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
gimp_drawable_sync_fs_filter (drawable);
gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
}
static void
gimp_drawable_fs_format_changed (GimpDrawable *signal_drawable,
GimpDrawable *drawable)
{
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
gimp_drawable_sync_fs_filter (drawable);
gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
}
static void
gimp_drawable_fs_affect_changed (GimpImage *image,
GimpChannelType channel,
GimpDrawable *drawable)
{
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
gimp_drawable_sync_fs_filter (drawable);
gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
}
static void
gimp_drawable_fs_mask_changed (GimpImage *image,
GimpDrawable *drawable)
{
GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
gimp_drawable_sync_fs_filter (drawable);
gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
}
static void
gimp_drawable_fs_visibility_changed (GimpLayer *fs,
GimpDrawable *drawable)
{
if (gimp_layer_get_excludes_backdrop (fs))
gimp_drawable_update (drawable, 0, 0, -1, -1);
else
gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
}
static void
gimp_drawable_fs_excludes_backdrop_changed (GimpLayer *fs,
GimpDrawable *drawable)
{
if (gimp_item_get_visible (GIMP_ITEM (fs)))
gimp_drawable_update (drawable, 0, 0, -1, -1);
}
static void
gimp_drawable_fs_bounding_box_changed (GimpLayer *fs,
GimpDrawable *drawable)
{
gimp_drawable_update_bounding_box (drawable);
}
static void
gimp_drawable_fs_update (GimpLayer *fs,
gint x,
gint y,
gint width,
gint height,
GimpDrawable *drawable)
{
GeglRectangle bounding_box;
GeglRectangle rect;
gint fs_off_x, fs_off_y;
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (fs), &fs_off_x, &fs_off_y);
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
bounding_box = gimp_drawable_get_bounding_box (drawable);
bounding_box.x += off_x;
bounding_box.y += off_y;
rect.x = x + fs_off_x;
rect.y = y + fs_off_y;
rect.width = width;
rect.height = height;
if (gegl_rectangle_intersect (&rect, &rect, &bounding_box))
{
gimp_drawable_update (drawable,
rect.x - off_x, rect.y - off_y,
rect.width, rect.height);
}
}