mirror of https://github.com/GNOME/gimp.git
828 lines
26 KiB
C
828 lines
26 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 <https://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 "libgimpcolor/gimpcolor.h"
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#include "core-types.h"
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#include "gimp.h"
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#include "gimp-edit.h"
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#include "gimpbuffer.h"
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#include "gimpcontext.h"
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#include "gimpgrouplayer.h"
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#include "gimpimage.h"
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#include "gimpimage-duplicate.h"
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#include "gimpimage-new.h"
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#include "gimpimage-undo.h"
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#include "gimplayer-floating-selection.h"
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#include "gimplayer-new.h"
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#include "gimplist.h"
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#include "gimppickable.h"
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#include "gimpselection.h"
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#include "gimp-intl.h"
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/* local function protypes */
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static GimpBuffer * gimp_edit_extract (GimpImage *image,
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GList *pickables,
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GimpContext *context,
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gboolean cut_pixels,
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GError **error);
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/* public functions */
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GimpObject *
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gimp_edit_cut (GimpImage *image,
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GList *drawables,
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GimpContext *context,
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GError **error)
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{
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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if (g_list_length (drawables) == 1 &&
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GIMP_IS_LAYER (drawables->data) &&
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gimp_channel_is_empty (gimp_image_get_mask (image)))
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{
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GimpImage *clip_image;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawables->data), &off_x, &off_y);
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clip_image = gimp_image_new_from_drawable (image->gimp, drawables->data);
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g_object_set_data (G_OBJECT (clip_image), "offset-x",
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GINT_TO_POINTER (off_x));
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g_object_set_data (G_OBJECT (clip_image), "offset-y",
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GINT_TO_POINTER (off_y));
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gimp_container_remove (image->gimp->images, GIMP_OBJECT (clip_image));
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gimp_set_clipboard_image (image->gimp, clip_image);
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g_object_unref (clip_image);
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_CUT,
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C_("undo-type", "Cut Layer"));
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gimp_image_remove_layer (image, GIMP_LAYER (drawables->data),
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TRUE, NULL);
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gimp_image_undo_group_end (image);
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return GIMP_OBJECT (gimp_get_clipboard_image (image->gimp));
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}
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else
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{
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GimpBuffer *buffer;
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buffer = gimp_edit_extract (image, drawables, context, TRUE, error);
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if (buffer)
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{
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gimp_set_clipboard_buffer (image->gimp, buffer);
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g_object_unref (buffer);
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return GIMP_OBJECT (gimp_get_clipboard_buffer (image->gimp));
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}
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}
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return NULL;
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}
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GimpObject *
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gimp_edit_copy (GimpImage *image,
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GList *drawables,
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GimpContext *context,
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GError **error)
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{
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GList *iter;
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gboolean drawables_are_layers = TRUE;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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g_return_val_if_fail (drawables != NULL, NULL);
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g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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for (iter = drawables; iter; iter = iter->next)
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{
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g_return_val_if_fail (GIMP_IS_DRAWABLE (iter->data), NULL);
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g_return_val_if_fail (gimp_item_is_attached (iter->data), NULL);
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if (! GIMP_IS_LAYER (iter->data))
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drawables_are_layers = FALSE;
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}
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/* Only accept multiple drawables for layers. */
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g_return_val_if_fail (g_list_length (drawables) == 1 || drawables_are_layers, NULL);
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if (drawables_are_layers &&
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gimp_channel_is_empty (gimp_image_get_mask (image)) &&
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g_list_length (drawables) == 1)
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{
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/* Special-casing the 1 layer with no selection case.
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* It allows us to save the whole layer with all pixels as stored,
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* not the rendered version of it.
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*/
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GimpImage *clip_image;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawables->data), &off_x, &off_y);
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clip_image = gimp_image_new_from_drawable (image->gimp, drawables->data);
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g_object_set_data (G_OBJECT (clip_image), "offset-x",
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GINT_TO_POINTER (off_x));
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g_object_set_data (G_OBJECT (clip_image), "offset-y",
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GINT_TO_POINTER (off_y));
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gimp_container_remove (image->gimp->images, GIMP_OBJECT (clip_image));
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gimp_set_clipboard_image (image->gimp, clip_image);
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g_object_unref (clip_image);
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return GIMP_OBJECT (gimp_get_clipboard_image (image->gimp));
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}
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else if (drawables_are_layers)
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{
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/* Copying multiple layers or specific selection, we copy the
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* composited pixels as rendered.
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*/
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GimpImage *clip_image;
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GimpBuffer *buffer;
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clip_image = gimp_image_new_from_drawables (image->gimp, drawables, TRUE);
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gimp_container_remove (image->gimp->images, GIMP_OBJECT (clip_image));
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buffer = gimp_edit_copy_visible (clip_image, context, error);
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g_object_unref (clip_image);
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return buffer ? GIMP_OBJECT (buffer) : NULL;
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}
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else
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{
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GimpBuffer *buffer;
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buffer = gimp_edit_extract (image, drawables, context, FALSE, error);
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if (buffer)
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{
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gimp_set_clipboard_buffer (image->gimp, buffer);
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g_object_unref (buffer);
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return GIMP_OBJECT (gimp_get_clipboard_buffer (image->gimp));
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}
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}
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return NULL;
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}
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GimpBuffer *
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gimp_edit_copy_visible (GimpImage *image,
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GimpContext *context,
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GError **error)
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{
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GimpBuffer *buffer;
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GList *pickables;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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pickables = g_list_prepend (NULL, image);
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buffer = gimp_edit_extract (image, pickables, context, FALSE, error);
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g_list_free (pickables);
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if (buffer)
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{
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gimp_set_clipboard_buffer (image->gimp, buffer);
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g_object_unref (buffer);
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return gimp_get_clipboard_buffer (image->gimp);
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}
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return NULL;
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}
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static gboolean
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gimp_edit_paste_is_in_place (GimpPasteType paste_type)
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{
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switch (paste_type)
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{
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case GIMP_PASTE_TYPE_FLOATING:
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case GIMP_PASTE_TYPE_FLOATING_INTO:
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case GIMP_PASTE_TYPE_NEW_LAYER:
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return FALSE;
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case GIMP_PASTE_TYPE_FLOATING_IN_PLACE:
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case GIMP_PASTE_TYPE_FLOATING_INTO_IN_PLACE:
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case GIMP_PASTE_TYPE_NEW_LAYER_IN_PLACE:
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return TRUE;
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}
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g_return_val_if_reached (FALSE);
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}
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static gboolean
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gimp_edit_paste_is_floating (GimpPasteType paste_type)
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{
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switch (paste_type)
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{
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case GIMP_PASTE_TYPE_FLOATING:
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case GIMP_PASTE_TYPE_FLOATING_INTO:
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case GIMP_PASTE_TYPE_FLOATING_IN_PLACE:
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case GIMP_PASTE_TYPE_FLOATING_INTO_IN_PLACE:
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return TRUE;
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case GIMP_PASTE_TYPE_NEW_LAYER:
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case GIMP_PASTE_TYPE_NEW_LAYER_IN_PLACE:
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return FALSE;
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}
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g_return_val_if_reached (FALSE);
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}
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static GimpLayer *
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gimp_edit_paste_get_layer (GimpImage *image,
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GimpDrawable *drawable,
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GimpObject *paste,
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GimpPasteType *paste_type)
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{
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GimpLayer *layer = NULL;
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const Babl *floating_format;
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/* change paste type to NEW_LAYER for cases where we can't attach a
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* floating selection
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*/
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if (! drawable ||
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gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) ||
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gimp_item_is_content_locked (GIMP_ITEM (drawable)))
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{
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if (gimp_edit_paste_is_in_place (*paste_type))
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*paste_type = GIMP_PASTE_TYPE_NEW_LAYER_IN_PLACE;
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else
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*paste_type = GIMP_PASTE_TYPE_NEW_LAYER;
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}
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/* floating pastes always have the pasted-to drawable's format with
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* alpha; if drawable == NULL, user is pasting into an empty image
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*/
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if (drawable && gimp_edit_paste_is_floating (*paste_type))
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floating_format = gimp_drawable_get_format_with_alpha (drawable);
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else
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floating_format = gimp_image_get_layer_format (image, TRUE);
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if (GIMP_IS_IMAGE (paste))
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{
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GType layer_type;
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layer = gimp_image_get_layer_iter (GIMP_IMAGE (paste))->data;
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switch (*paste_type)
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{
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case GIMP_PASTE_TYPE_FLOATING:
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case GIMP_PASTE_TYPE_FLOATING_IN_PLACE:
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case GIMP_PASTE_TYPE_FLOATING_INTO:
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case GIMP_PASTE_TYPE_FLOATING_INTO_IN_PLACE:
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/* when pasting as floating make sure gimp_item_convert()
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* will turn group layers into normal layers, otherwise use
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* the same layer type so e.g. text information gets
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* preserved. See issue #2667.
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*/
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if (GIMP_IS_GROUP_LAYER (layer))
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layer_type = GIMP_TYPE_LAYER;
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else
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layer_type = G_TYPE_FROM_INSTANCE (layer);
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break;
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case GIMP_PASTE_TYPE_NEW_LAYER:
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case GIMP_PASTE_TYPE_NEW_LAYER_IN_PLACE:
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layer_type = G_TYPE_FROM_INSTANCE (layer);
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break;
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default:
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g_return_val_if_reached (NULL);
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}
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layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (layer),
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image, layer_type));
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switch (*paste_type)
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{
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case GIMP_PASTE_TYPE_FLOATING:
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case GIMP_PASTE_TYPE_FLOATING_IN_PLACE:
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case GIMP_PASTE_TYPE_FLOATING_INTO:
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case GIMP_PASTE_TYPE_FLOATING_INTO_IN_PLACE:
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/* when pasting as floating selection, get rid of the layer mask,
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* and make sure the layer has the right format
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*/
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if (gimp_layer_get_mask (layer))
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gimp_layer_apply_mask (layer, GIMP_MASK_DISCARD, FALSE);
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if (gimp_drawable_get_format (GIMP_DRAWABLE (layer)) !=
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floating_format)
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{
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gimp_drawable_convert_type (GIMP_DRAWABLE (layer), image,
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gimp_drawable_get_base_type (drawable),
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gimp_drawable_get_precision (drawable),
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TRUE,
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NULL, NULL,
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GEGL_DITHER_NONE, GEGL_DITHER_NONE,
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FALSE, NULL);
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}
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break;
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default:
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break;
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}
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}
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else if (GIMP_IS_BUFFER (paste))
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{
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layer = gimp_layer_new_from_buffer (GIMP_BUFFER (paste), image,
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floating_format,
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_("Pasted Layer"),
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GIMP_OPACITY_OPAQUE,
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gimp_image_get_default_new_layer_mode (image));
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}
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return layer;
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}
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static void
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gimp_edit_paste_get_viewport_offset (GimpImage *image,
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GimpDrawable *drawable,
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GimpObject *paste,
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gint viewport_x,
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gint viewport_y,
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gint viewport_width,
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gint viewport_height,
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gint *offset_x,
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gint *offset_y)
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{
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gint image_width;
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gint image_height;
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gint width;
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gint height;
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gboolean clamp_to_image = TRUE;
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (drawable == NULL || GIMP_IS_DRAWABLE (drawable));
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g_return_if_fail (drawable == NULL ||
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gimp_item_is_attached (GIMP_ITEM (drawable)));
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g_return_if_fail (GIMP_IS_VIEWABLE (paste));
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g_return_if_fail (offset_x != NULL);
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g_return_if_fail (offset_y != NULL);
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image_width = gimp_image_get_width (image);
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image_height = gimp_image_get_height (image);
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gimp_viewable_get_size (GIMP_VIEWABLE (paste), &width, &height);
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if (viewport_width == image_width &&
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viewport_height == image_height)
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{
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/* if the whole image is visible, act as if there was no viewport */
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viewport_x = 0;
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viewport_y = 0;
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viewport_width = 0;
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viewport_height = 0;
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}
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if (drawable)
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{
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/* if pasting to a drawable */
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GimpContainer *children;
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gint off_x, off_y;
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gint target_x, target_y;
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gint target_width, target_height;
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gint paste_x, paste_y;
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gint paste_width, paste_height;
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gboolean have_mask;
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have_mask = ! gimp_channel_is_empty (gimp_image_get_mask (image));
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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children = gimp_viewable_get_children (GIMP_VIEWABLE (drawable));
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if (children && gimp_container_get_n_children (children) == 0)
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{
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/* treat empty layer groups as image-sized, use the selection
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* as target
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*/
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gimp_item_bounds (GIMP_ITEM (gimp_image_get_mask (image)),
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&target_x, &target_y,
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&target_width, &target_height);
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}
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else
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{
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gimp_item_mask_intersect (GIMP_ITEM (drawable),
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&target_x, &target_y,
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&target_width, &target_height);
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}
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if (! have_mask && /* if we have no mask */
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viewport_width > 0 && /* and we have a viewport */
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viewport_height > 0 &&
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(width < target_width || /* and the paste is smaller than the target */
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height < target_height) &&
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/* and the viewport intersects with the target */
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gimp_rectangle_intersect (viewport_x, viewport_y,
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viewport_width, viewport_height,
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off_x, off_y, /* target_x,y are 0 */
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target_width, target_height,
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&paste_x, &paste_y,
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&paste_width, &paste_height))
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{
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/* center on the viewport */
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*offset_x = paste_x + (paste_width - width) / 2;
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*offset_y = paste_y + (paste_height- height) / 2;
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}
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else
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{
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/* otherwise center on the target */
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*offset_x = off_x + target_x + (target_width - width) / 2;
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*offset_y = off_y + target_y + (target_height - height) / 2;
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/* and keep it that way */
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clamp_to_image = FALSE;
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}
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}
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else if (viewport_width > 0 && /* if we have a viewport */
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viewport_height > 0 &&
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(width < image_width || /* and the paste is */
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height < image_height)) /* smaller than the image */
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{
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/* center on the viewport */
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*offset_x = viewport_x + (viewport_width - width) / 2;
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*offset_y = viewport_y + (viewport_height - height) / 2;
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}
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else
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{
|
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/* otherwise center on the image */
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*offset_x = (image_width - width) / 2;
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*offset_y = (image_height - height) / 2;
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/* and keep it that way */
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clamp_to_image = FALSE;
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}
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|
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if (clamp_to_image)
|
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{
|
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/* Ensure that the pasted layer is always within the image, if it
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* fits and aligned at top left if it doesn't. (See bug #142944).
|
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*/
|
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*offset_x = MIN (*offset_x, image_width - width);
|
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*offset_y = MIN (*offset_y, image_height - height);
|
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*offset_x = MAX (*offset_x, 0);
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*offset_y = MAX (*offset_y, 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_edit_paste_get_paste_offset (GimpImage *image,
|
|
GimpDrawable *drawable,
|
|
GimpObject *paste,
|
|
gint *offset_x,
|
|
gint *offset_y)
|
|
{
|
|
g_return_if_fail (GIMP_IS_IMAGE (image));
|
|
g_return_if_fail (drawable == NULL || GIMP_IS_DRAWABLE (drawable));
|
|
g_return_if_fail (drawable == NULL ||
|
|
gimp_item_is_attached (GIMP_ITEM (drawable)));
|
|
g_return_if_fail (GIMP_IS_VIEWABLE (paste));
|
|
g_return_if_fail (offset_x != NULL);
|
|
g_return_if_fail (offset_y != NULL);
|
|
|
|
if (GIMP_IS_IMAGE (paste))
|
|
{
|
|
*offset_x = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (paste),
|
|
"offset-x"));
|
|
*offset_y = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (paste),
|
|
"offset-y"));
|
|
}
|
|
else if (GIMP_IS_BUFFER (paste))
|
|
{
|
|
GimpBuffer *buffer = GIMP_BUFFER (paste);
|
|
|
|
*offset_x = buffer->offset_x;
|
|
*offset_y = buffer->offset_y;
|
|
}
|
|
}
|
|
|
|
static GimpLayer *
|
|
gimp_edit_paste_paste (GimpImage *image,
|
|
GimpDrawable *drawable,
|
|
GimpLayer *layer,
|
|
GimpPasteType paste_type,
|
|
gint offset_x,
|
|
gint offset_y)
|
|
{
|
|
gimp_item_translate (GIMP_ITEM (layer), offset_x, offset_y, FALSE);
|
|
|
|
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
|
|
C_("undo-type", "Paste"));
|
|
|
|
switch (paste_type)
|
|
{
|
|
case GIMP_PASTE_TYPE_FLOATING:
|
|
case GIMP_PASTE_TYPE_FLOATING_IN_PLACE:
|
|
/* if there is a selection mask clear it - this might not
|
|
* always be desired, but in general, it seems like the correct
|
|
* behavior
|
|
*/
|
|
if (! gimp_channel_is_empty (gimp_image_get_mask (image)))
|
|
gimp_channel_clear (gimp_image_get_mask (image), NULL, TRUE);
|
|
|
|
/* fall thru */
|
|
|
|
case GIMP_PASTE_TYPE_FLOATING_INTO:
|
|
case GIMP_PASTE_TYPE_FLOATING_INTO_IN_PLACE:
|
|
floating_sel_attach (layer, drawable);
|
|
break;
|
|
|
|
case GIMP_PASTE_TYPE_NEW_LAYER:
|
|
case GIMP_PASTE_TYPE_NEW_LAYER_IN_PLACE:
|
|
{
|
|
GimpLayer *parent = NULL;
|
|
gint position = 0;
|
|
|
|
/* always add on top of a passed layer, where we would attach
|
|
* a floating selection
|
|
*/
|
|
if (GIMP_IS_LAYER (drawable))
|
|
{
|
|
parent = gimp_layer_get_parent (GIMP_LAYER (drawable));
|
|
position = gimp_item_get_index (GIMP_ITEM (drawable));
|
|
}
|
|
|
|
gimp_image_add_layer (image, layer, parent, position, TRUE);
|
|
}
|
|
break;
|
|
}
|
|
|
|
gimp_image_undo_group_end (image);
|
|
|
|
return layer;
|
|
}
|
|
|
|
GimpLayer *
|
|
gimp_edit_paste (GimpImage *image,
|
|
GimpDrawable *drawable,
|
|
GimpObject *paste,
|
|
GimpPasteType paste_type,
|
|
gint viewport_x,
|
|
gint viewport_y,
|
|
gint viewport_width,
|
|
gint viewport_height)
|
|
{
|
|
GimpLayer *layer;
|
|
gint offset_x = 0;
|
|
gint offset_y = 0;
|
|
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
g_return_val_if_fail (drawable == NULL || GIMP_IS_DRAWABLE (drawable), NULL);
|
|
g_return_val_if_fail (drawable == NULL ||
|
|
gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (paste) || GIMP_IS_BUFFER (paste), NULL);
|
|
|
|
layer = gimp_edit_paste_get_layer (image, drawable, paste, &paste_type);
|
|
|
|
if (! layer)
|
|
return NULL;
|
|
|
|
if (gimp_edit_paste_is_in_place (paste_type))
|
|
{
|
|
gimp_edit_paste_get_paste_offset (image, drawable, paste,
|
|
&offset_x,
|
|
&offset_y);
|
|
}
|
|
else
|
|
{
|
|
gimp_edit_paste_get_viewport_offset (image, drawable, GIMP_OBJECT (layer),
|
|
viewport_x,
|
|
viewport_y,
|
|
viewport_width,
|
|
viewport_height,
|
|
&offset_x,
|
|
&offset_y);
|
|
}
|
|
|
|
return gimp_edit_paste_paste (image, drawable, layer, paste_type,
|
|
offset_x, offset_y);
|
|
}
|
|
|
|
GimpImage *
|
|
gimp_edit_paste_as_new_image (Gimp *gimp,
|
|
GimpObject *paste)
|
|
{
|
|
GimpImage *image = NULL;
|
|
|
|
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (paste) || GIMP_IS_BUFFER (paste), NULL);
|
|
|
|
if (GIMP_IS_IMAGE (paste))
|
|
{
|
|
image = gimp_image_duplicate (GIMP_IMAGE (paste));
|
|
}
|
|
else if (GIMP_IS_BUFFER (paste))
|
|
{
|
|
image = gimp_image_new_from_buffer (gimp, GIMP_BUFFER (paste));
|
|
}
|
|
|
|
return image;
|
|
}
|
|
|
|
const gchar *
|
|
gimp_edit_named_cut (GimpImage *image,
|
|
const gchar *name,
|
|
GList *drawables,
|
|
GimpContext *context,
|
|
GError **error)
|
|
{
|
|
GimpBuffer *buffer;
|
|
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
g_return_val_if_fail (name != NULL, NULL);
|
|
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
|
|
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
|
|
|
buffer = gimp_edit_extract (image, drawables, context, TRUE, error);
|
|
|
|
if (buffer)
|
|
{
|
|
gimp_object_set_name (GIMP_OBJECT (buffer), name);
|
|
gimp_container_add (image->gimp->named_buffers, GIMP_OBJECT (buffer));
|
|
g_object_unref (buffer);
|
|
|
|
return gimp_object_get_name (buffer);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const gchar *
|
|
gimp_edit_named_copy (GimpImage *image,
|
|
const gchar *name,
|
|
GList *drawables,
|
|
GimpContext *context,
|
|
GError **error)
|
|
{
|
|
GimpBuffer *buffer;
|
|
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
g_return_val_if_fail (name != NULL, NULL);
|
|
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
|
|
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
|
|
|
buffer = gimp_edit_extract (image, drawables, context, FALSE, error);
|
|
|
|
if (buffer)
|
|
{
|
|
gimp_object_set_name (GIMP_OBJECT (buffer), name);
|
|
gimp_container_add (image->gimp->named_buffers, GIMP_OBJECT (buffer));
|
|
g_object_unref (buffer);
|
|
|
|
return gimp_object_get_name (buffer);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const gchar *
|
|
gimp_edit_named_copy_visible (GimpImage *image,
|
|
const gchar *name,
|
|
GimpContext *context,
|
|
GError **error)
|
|
{
|
|
GimpBuffer *buffer;
|
|
GList *pickables;
|
|
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
g_return_val_if_fail (name != NULL, NULL);
|
|
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
|
|
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
|
|
|
pickables = g_list_prepend (NULL, image);
|
|
buffer = gimp_edit_extract (image, pickables, context, FALSE, error);
|
|
g_list_free (pickables);
|
|
|
|
if (buffer)
|
|
{
|
|
gimp_object_set_name (GIMP_OBJECT (buffer), name);
|
|
gimp_container_add (image->gimp->named_buffers, GIMP_OBJECT (buffer));
|
|
g_object_unref (buffer);
|
|
|
|
return gimp_object_get_name (buffer);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* private functions */
|
|
|
|
/**
|
|
* gimp_edit_extract:
|
|
* @image:
|
|
* @pickables:
|
|
* @context:
|
|
* @cut_pixels:
|
|
* @error:
|
|
*
|
|
* Extracts the selected part of @image from the list of @pickables.
|
|
* If @cut_pixels is %TRUE, and there is only one pickable input, and if
|
|
* this pickable is a #GimpDrawable, then the selected pixels will be
|
|
* effectively erased from the input pickable.
|
|
* Otherwise @cut_pixels has no additional effect.
|
|
* Note that all @pickables must belong to the same @image.
|
|
*
|
|
* Returns: a #GimpBuffer of the selected part of @image as if only the
|
|
* selected @pickables were present (composited according to their
|
|
* properties, unless there is only one pickable, in which case direct
|
|
* pixel information is used without composition).
|
|
*/
|
|
static GimpBuffer *
|
|
gimp_edit_extract (GimpImage *image,
|
|
GList *pickables,
|
|
GimpContext *context,
|
|
gboolean cut_pixels,
|
|
GError **error)
|
|
{
|
|
GeglBuffer *buffer;
|
|
gint offset_x;
|
|
gint offset_y;
|
|
|
|
g_return_val_if_fail (g_list_length (pickables) > 0, NULL);
|
|
|
|
if (g_list_length (pickables) > 1 ||
|
|
! GIMP_IS_DRAWABLE (pickables->data))
|
|
cut_pixels = FALSE;
|
|
|
|
if (cut_pixels)
|
|
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_CUT,
|
|
C_("undo-type", "Cut"));
|
|
|
|
/* Cut/copy the mask portion from the image */
|
|
buffer = gimp_selection_extract (GIMP_SELECTION (gimp_image_get_mask (image)),
|
|
pickables, context,
|
|
cut_pixels, FALSE, FALSE,
|
|
&offset_x, &offset_y, error);
|
|
|
|
if (cut_pixels)
|
|
gimp_image_undo_group_end (image);
|
|
|
|
if (buffer)
|
|
{
|
|
GimpBuffer *gimp_buffer;
|
|
gdouble res_x;
|
|
gdouble res_y;
|
|
|
|
gimp_buffer = gimp_buffer_new (buffer, _("Global Buffer"),
|
|
offset_x, offset_y, FALSE);
|
|
g_object_unref (buffer);
|
|
|
|
gimp_image_get_resolution (image, &res_x, &res_y);
|
|
gimp_buffer_set_resolution (gimp_buffer, res_x, res_y);
|
|
gimp_buffer_set_unit (gimp_buffer, gimp_image_get_unit (image));
|
|
|
|
if (GIMP_IS_COLOR_MANAGED (pickables->data))
|
|
{
|
|
GimpColorProfile *profile =
|
|
gimp_color_managed_get_color_profile (GIMP_COLOR_MANAGED (pickables->data));
|
|
|
|
if (profile)
|
|
gimp_buffer_set_color_profile (gimp_buffer, profile);
|
|
}
|
|
|
|
return gimp_buffer;
|
|
}
|
|
|
|
return NULL;
|
|
}
|