218 lines
6.8 KiB
C
218 lines
6.8 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "pika.h"
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#include "pikaimage.h"
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#include "pikaimage-private.h"
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#include "pikaimage-sample-points.h"
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#include "pikaimage-undo-push.h"
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#include "pikasamplepoint.h"
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#include "pika-intl.h"
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/* public functions */
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PikaSamplePoint *
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pika_image_add_sample_point_at_pos (PikaImage *image,
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gint x,
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gint y,
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gboolean push_undo)
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{
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PikaSamplePoint *sample_point;
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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g_return_val_if_fail (x >= 0 && x < pika_image_get_width (image), NULL);
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g_return_val_if_fail (y >= 0 && y < pika_image_get_height (image), NULL);
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sample_point = pika_sample_point_new (image->pika->next_sample_point_id++);
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if (push_undo)
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pika_image_undo_push_sample_point (image, C_("undo-type", "Add Sample Point"),
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sample_point);
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pika_image_add_sample_point (image, sample_point, x, y);
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g_object_unref (sample_point);
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return sample_point;
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}
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void
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pika_image_add_sample_point (PikaImage *image,
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PikaSamplePoint *sample_point,
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gint x,
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gint y)
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{
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PikaImagePrivate *private;
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_SAMPLE_POINT (sample_point));
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private = PIKA_IMAGE_GET_PRIVATE (image);
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private->sample_points = g_list_append (private->sample_points, sample_point);
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pika_sample_point_set_position (sample_point, x, y);
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g_object_ref (sample_point);
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pika_image_sample_point_added (image, sample_point);
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}
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void
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pika_image_remove_sample_point (PikaImage *image,
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PikaSamplePoint *sample_point,
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gboolean push_undo)
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{
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PikaImagePrivate *private;
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_SAMPLE_POINT (sample_point));
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private = PIKA_IMAGE_GET_PRIVATE (image);
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if (push_undo)
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pika_image_undo_push_sample_point (image,
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C_("undo-type", "Remove Sample Point"),
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sample_point);
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private->sample_points = g_list_remove (private->sample_points, sample_point);
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pika_aux_item_removed (PIKA_AUX_ITEM (sample_point));
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pika_image_sample_point_removed (image, sample_point);
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pika_sample_point_set_position (sample_point,
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PIKA_SAMPLE_POINT_POSITION_UNDEFINED,
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PIKA_SAMPLE_POINT_POSITION_UNDEFINED);
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g_object_unref (sample_point);
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}
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void
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pika_image_move_sample_point (PikaImage *image,
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PikaSamplePoint *sample_point,
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gint x,
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gint y,
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gboolean push_undo)
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{
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_SAMPLE_POINT (sample_point));
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g_return_if_fail (x >= 0);
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g_return_if_fail (y >= 0);
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g_return_if_fail (x < pika_image_get_width (image));
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g_return_if_fail (y < pika_image_get_height (image));
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if (push_undo)
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pika_image_undo_push_sample_point (image,
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C_("undo-type", "Move Sample Point"),
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sample_point);
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pika_sample_point_set_position (sample_point, x, y);
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pika_image_sample_point_moved (image, sample_point);
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}
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void
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pika_image_set_sample_point_pick_mode (PikaImage *image,
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PikaSamplePoint *sample_point,
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PikaColorPickMode pick_mode,
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gboolean push_undo)
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{
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_SAMPLE_POINT (sample_point));
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if (push_undo)
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pika_image_undo_push_sample_point (image,
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C_("undo-type",
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"Set Sample Point Pick Mode"),
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sample_point);
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pika_sample_point_set_pick_mode (sample_point, pick_mode);
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/* well... */
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pika_image_sample_point_moved (image, sample_point);
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}
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GList *
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pika_image_get_sample_points (PikaImage *image)
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{
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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return PIKA_IMAGE_GET_PRIVATE (image)->sample_points;
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}
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PikaSamplePoint *
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pika_image_get_sample_point (PikaImage *image,
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guint32 id)
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{
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GList *sample_points;
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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for (sample_points = PIKA_IMAGE_GET_PRIVATE (image)->sample_points;
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sample_points;
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sample_points = g_list_next (sample_points))
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{
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PikaSamplePoint *sample_point = sample_points->data;
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if (pika_aux_item_get_id (PIKA_AUX_ITEM (sample_point)) == id)
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return sample_point;
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}
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return NULL;
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}
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PikaSamplePoint *
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pika_image_get_next_sample_point (PikaImage *image,
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guint32 id,
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gboolean *sample_point_found)
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{
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GList *sample_points;
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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g_return_val_if_fail (sample_point_found != NULL, NULL);
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if (id == 0)
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*sample_point_found = TRUE;
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else
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*sample_point_found = FALSE;
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for (sample_points = PIKA_IMAGE_GET_PRIVATE (image)->sample_points;
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sample_points;
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sample_points = g_list_next (sample_points))
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{
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PikaSamplePoint *sample_point = sample_points->data;
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if (*sample_point_found) /* this is the first guide after the found one */
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return sample_point;
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if (pika_aux_item_get_id (PIKA_AUX_ITEM (sample_point)) == id) /* found it, next one will be returned */
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*sample_point_found = TRUE;
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}
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return NULL;
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}
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