2a96d598c3
Largely based on a patch by Ell, with the enum type renamed and various small changes. Adds another axis of configurability to the existing layer mode madness, and is WIP too.
384 lines
13 KiB
C
384 lines
13 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 "core-types.h"
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#include "gegl/gimpapplicator.h"
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#include "gimpchannel.h"
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#include "gimpdrawable-floating-selection.h"
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#include "gimpdrawable-filters.h"
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#include "gimpdrawable-private.h"
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#include "gimpimage.h"
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#include "gimplayer.h"
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#include "gimp-log.h"
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#include "gimp-intl.h"
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/* local function prototypes */
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static void gimp_drawable_remove_fs_filter (GimpDrawable *drawable);
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static void gimp_drawable_sync_fs_filter (GimpDrawable *drawable);
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static void gimp_drawable_fs_notify (GimpLayer *fs,
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const GParamSpec *pspec,
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GimpDrawable *drawable);
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static void gimp_drawable_fs_affect_changed (GimpImage *image,
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GimpChannelType channel,
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GimpDrawable *drawable);
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static void gimp_drawable_fs_mask_changed (GimpImage *image,
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GimpDrawable *drawable);
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static void gimp_drawable_fs_update (GimpLayer *fs,
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gint x,
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gint y,
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gint width,
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gint height,
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GimpDrawable *drawable);
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/* public functions */
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GimpLayer *
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gimp_drawable_get_floating_sel (GimpDrawable *drawable)
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{
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g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
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return drawable->private->floating_selection;
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}
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void
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gimp_drawable_attach_floating_sel (GimpDrawable *drawable,
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GimpLayer *fs)
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{
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GimpImage *image;
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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_drawable_get_floating_sel (drawable) == NULL);
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g_return_if_fail (GIMP_IS_LAYER (fs));
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GIMP_LOG (FLOATING_SELECTION, "%s", G_STRFUNC);
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image = gimp_item_get_image (GIMP_ITEM (drawable));
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drawable->private->floating_selection = fs;
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gimp_image_set_floating_selection (image, fs);
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/* clear the selection */
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gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (fs));
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_gimp_drawable_add_floating_sel_filter (drawable);
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g_signal_connect (fs, "update",
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G_CALLBACK (gimp_drawable_fs_update),
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drawable);
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gimp_drawable_fs_update (fs,
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0, 0,
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gimp_item_get_width (GIMP_ITEM (fs)),
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gimp_item_get_height (GIMP_ITEM (fs)),
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drawable);
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}
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void
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gimp_drawable_detach_floating_sel (GimpDrawable *drawable)
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{
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GimpImage *image;
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GimpLayer *fs;
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g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
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g_return_if_fail (gimp_drawable_get_floating_sel (drawable) != NULL);
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GIMP_LOG (FLOATING_SELECTION, "%s", G_STRFUNC);
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image = gimp_item_get_image (GIMP_ITEM (drawable));
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fs = drawable->private->floating_selection;
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gimp_drawable_remove_fs_filter (drawable);
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g_signal_handlers_disconnect_by_func (fs,
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gimp_drawable_fs_update,
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drawable);
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gimp_drawable_fs_update (fs,
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0, 0,
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gimp_item_get_width (GIMP_ITEM (fs)),
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gimp_item_get_height (GIMP_ITEM (fs)),
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drawable);
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/* clear the selection */
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gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (fs));
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gimp_image_set_floating_selection (image, NULL);
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drawable->private->floating_selection = NULL;
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}
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GimpFilter *
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gimp_drawable_get_floating_sel_filter (GimpDrawable *drawable)
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{
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g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
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g_return_val_if_fail (gimp_drawable_get_floating_sel (drawable) != NULL, NULL);
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/* Ensure that the graph is construced before the filter is used.
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* Otherwise, we rely on the projection to cause the graph to be
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* constructed, which fails for images that aren't displayed.
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*/
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gimp_filter_get_node (GIMP_FILTER (drawable));
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return drawable->private->fs_filter;
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}
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/* private functions */
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void
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_gimp_drawable_add_floating_sel_filter (GimpDrawable *drawable)
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{
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GimpDrawablePrivate *private = drawable->private;
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
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GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
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GeglNode *node;
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GeglNode *fs_source;
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if (! private->source_node)
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return;
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private->fs_filter = gimp_filter_new (_("Floating Selection"));
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gimp_viewable_set_icon_name (GIMP_VIEWABLE (private->fs_filter),
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"gimp-floating-selection");
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node = gimp_filter_get_node (private->fs_filter);
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fs_source = gimp_drawable_get_source_node (GIMP_DRAWABLE (fs));
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/* rip the fs' source node out of its graph */
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if (fs->layer_offset_node)
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{
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gegl_node_disconnect (fs->layer_offset_node, "input");
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gegl_node_remove_child (gimp_filter_get_node (GIMP_FILTER (fs)),
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fs_source);
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}
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gegl_node_add_child (node, fs_source);
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private->fs_applicator = gimp_applicator_new (node, FALSE, FALSE);
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private->fs_crop_node =
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gegl_node_new_child (node,
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"operation", "gegl:crop",
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NULL);
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gegl_node_connect_to (fs_source, "output",
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private->fs_crop_node, "input");
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gegl_node_connect_to (private->fs_crop_node, "output",
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node, "aux");
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gimp_drawable_add_filter (drawable, private->fs_filter);
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g_signal_connect (fs, "notify",
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G_CALLBACK (gimp_drawable_fs_notify),
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drawable);
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g_signal_connect (image, "component-active-changed",
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G_CALLBACK (gimp_drawable_fs_affect_changed),
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drawable);
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g_signal_connect (image, "mask-changed",
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G_CALLBACK (gimp_drawable_fs_mask_changed),
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drawable);
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gimp_drawable_sync_fs_filter (drawable);
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}
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/* private functions */
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static void
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gimp_drawable_remove_fs_filter (GimpDrawable *drawable)
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{
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GimpDrawablePrivate *private = drawable->private;
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
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GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
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if (private->fs_filter)
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{
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GeglNode *node;
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GeglNode *fs_source;
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g_signal_handlers_disconnect_by_func (fs,
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gimp_drawable_fs_notify,
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drawable);
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g_signal_handlers_disconnect_by_func (image,
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gimp_drawable_fs_affect_changed,
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drawable);
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g_signal_handlers_disconnect_by_func (image,
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gimp_drawable_fs_mask_changed,
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drawable);
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gimp_drawable_remove_filter (drawable, private->fs_filter);
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node = gimp_filter_get_node (private->fs_filter);
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fs_source = gimp_drawable_get_source_node (GIMP_DRAWABLE (fs));
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gegl_node_remove_child (node, fs_source);
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/* plug the fs' source node back into its graph */
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if (fs->layer_offset_node)
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{
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gegl_node_add_child (gimp_filter_get_node (GIMP_FILTER (fs)),
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fs_source);
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gegl_node_connect_to (fs_source, "output",
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fs->layer_offset_node, "input");
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}
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g_object_unref (private->fs_filter);
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private->fs_filter = NULL;
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g_object_unref (private->fs_applicator);
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private->fs_applicator = NULL;
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private->fs_crop_node = NULL;
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}
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}
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static void
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gimp_drawable_sync_fs_filter (GimpDrawable *drawable)
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{
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GimpDrawablePrivate *private = drawable->private;
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
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GimpChannel *mask = gimp_image_get_mask (image);
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GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
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gint off_x, off_y;
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gint fs_off_x, fs_off_y;
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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gimp_item_get_offset (GIMP_ITEM (fs), &fs_off_x, &fs_off_y);
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gegl_node_set (private->fs_crop_node,
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"x", (gdouble) (off_x - fs_off_x),
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"y", (gdouble) (off_y - fs_off_y),
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"width", (gdouble) gimp_item_get_width (GIMP_ITEM (drawable)),
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"height", (gdouble) gimp_item_get_height (GIMP_ITEM (drawable)),
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NULL);
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gimp_applicator_set_apply_offset (private->fs_applicator,
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fs_off_x - off_x,
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fs_off_y - off_y);
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if (gimp_channel_is_empty (mask))
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{
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gimp_applicator_set_mask_buffer (private->fs_applicator, NULL);
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}
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else
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{
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GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
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gimp_applicator_set_mask_buffer (private->fs_applicator, buffer);
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gimp_applicator_set_mask_offset (private->fs_applicator,
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-off_x, -off_y);
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}
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gimp_applicator_set_opacity (private->fs_applicator,
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gimp_layer_get_opacity (fs));
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gimp_applicator_set_mode (private->fs_applicator,
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gimp_layer_get_mode (fs),
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gimp_layer_get_composite (fs));
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gimp_applicator_set_affect (private->fs_applicator,
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gimp_drawable_get_active_mask (drawable));
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}
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static void
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gimp_drawable_fs_notify (GimpLayer *fs,
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const GParamSpec *pspec,
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GimpDrawable *drawable)
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{
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if (! strcmp (pspec->name, "offset-x") ||
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! strcmp (pspec->name, "offset-y") ||
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! strcmp (pspec->name, "visible") ||
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! strcmp (pspec->name, "mode") ||
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! strcmp (pspec->name, "opacity"))
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{
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gimp_drawable_sync_fs_filter (drawable);
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}
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}
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static void
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gimp_drawable_fs_affect_changed (GimpImage *image,
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GimpChannelType channel,
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GimpDrawable *drawable)
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{
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GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
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gimp_drawable_sync_fs_filter (drawable);
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gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
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}
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static void
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gimp_drawable_fs_mask_changed (GimpImage *image,
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GimpDrawable *drawable)
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{
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GimpLayer *fs = gimp_drawable_get_floating_sel (drawable);
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gimp_drawable_sync_fs_filter (drawable);
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gimp_drawable_update (GIMP_DRAWABLE (fs), 0, 0, -1, -1);
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}
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static void
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gimp_drawable_fs_update (GimpLayer *fs,
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gint x,
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gint y,
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gint width,
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gint height,
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GimpDrawable *drawable)
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{
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gint fs_off_x, fs_off_y;
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gint off_x, off_y;
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gint dr_x, dr_y, dr_width, dr_height;
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gimp_item_get_offset (GIMP_ITEM (fs), &fs_off_x, &fs_off_y);
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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if (gimp_rectangle_intersect (x + fs_off_x,
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y + fs_off_y,
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width,
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height,
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off_x,
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off_y,
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gimp_item_get_width (GIMP_ITEM (drawable)),
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gimp_item_get_height (GIMP_ITEM (drawable)),
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&dr_x,
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&dr_y,
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&dr_width,
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&dr_height))
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{
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gimp_drawable_update (drawable,
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dr_x - off_x, dr_y - off_y,
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dr_width, dr_height);
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}
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}
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