540 lines
18 KiB
C
540 lines
18 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 <string.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 "libpikabase/pikabase.h"
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#include "libpikacolor/pikacolor.h"
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#include "libpikaconfig/pikaconfig.h"
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#include "core-types.h"
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#include "pika-memsize.h"
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#include "pikadrawable.h"
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#include "pikagrid.h"
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#include "pikaimage.h"
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#include "pikaimage-color-profile.h"
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#include "pikaimage-colormap.h"
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#include "pikaimage-grid.h"
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#include "pikaimage-metadata.h"
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#include "pikaimage-private.h"
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#include "pikaimageundo.h"
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enum
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{
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PROP_0,
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PROP_PREVIOUS_ORIGIN_X,
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PROP_PREVIOUS_ORIGIN_Y,
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PROP_PREVIOUS_WIDTH,
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PROP_PREVIOUS_HEIGHT,
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PROP_GRID,
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PROP_PARASITE_NAME
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};
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static void pika_image_undo_constructed (GObject *object);
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static void pika_image_undo_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_image_undo_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static gint64 pika_image_undo_get_memsize (PikaObject *object,
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gint64 *gui_size);
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static void pika_image_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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static void pika_image_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode);
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G_DEFINE_TYPE (PikaImageUndo, pika_image_undo, PIKA_TYPE_UNDO)
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#define parent_class pika_image_undo_parent_class
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static void
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pika_image_undo_class_init (PikaImageUndoClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
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PikaUndoClass *undo_class = PIKA_UNDO_CLASS (klass);
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object_class->constructed = pika_image_undo_constructed;
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object_class->set_property = pika_image_undo_set_property;
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object_class->get_property = pika_image_undo_get_property;
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pika_object_class->get_memsize = pika_image_undo_get_memsize;
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undo_class->pop = pika_image_undo_pop;
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undo_class->free = pika_image_undo_free;
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g_object_class_install_property (object_class, PROP_PREVIOUS_ORIGIN_X,
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g_param_spec_int ("previous-origin-x",
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NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE,
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0,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_PREVIOUS_ORIGIN_Y,
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g_param_spec_int ("previous-origin-y",
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NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE,
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0,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_PREVIOUS_WIDTH,
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g_param_spec_int ("previous-width",
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NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE,
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0,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_PREVIOUS_HEIGHT,
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g_param_spec_int ("previous-height",
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NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE,
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0,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_GRID,
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g_param_spec_object ("grid", NULL, NULL,
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PIKA_TYPE_GRID,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_PARASITE_NAME,
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g_param_spec_string ("parasite-name",
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NULL, NULL,
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NULL,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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}
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static void
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pika_image_undo_init (PikaImageUndo *undo)
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{
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}
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static void
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pika_image_undo_constructed (GObject *object)
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{
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PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (object);
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PikaImage *image;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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image = PIKA_UNDO (object)->image;
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switch (PIKA_UNDO (object)->undo_type)
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{
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case PIKA_UNDO_IMAGE_TYPE:
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image_undo->base_type = pika_image_get_base_type (image);
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break;
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case PIKA_UNDO_IMAGE_PRECISION:
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image_undo->precision = pika_image_get_precision (image);
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break;
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case PIKA_UNDO_IMAGE_SIZE:
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image_undo->width = pika_image_get_width (image);
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image_undo->height = pika_image_get_height (image);
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break;
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case PIKA_UNDO_IMAGE_RESOLUTION:
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pika_image_get_resolution (image,
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&image_undo->xresolution,
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&image_undo->yresolution);
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image_undo->resolution_unit = pika_image_get_unit (image);
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break;
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case PIKA_UNDO_IMAGE_GRID:
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pika_assert (PIKA_IS_GRID (image_undo->grid));
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break;
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case PIKA_UNDO_IMAGE_COLORMAP:
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image_undo->num_colors = pika_image_get_colormap_size (image);
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image_undo->colormap = pika_image_get_colormap (image);
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break;
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case PIKA_UNDO_IMAGE_HIDDEN_PROFILE:
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g_set_object (&image_undo->hidden_profile,
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_pika_image_get_hidden_profile (image));
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break;
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case PIKA_UNDO_IMAGE_METADATA:
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image_undo->metadata =
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pika_metadata_duplicate (pika_image_get_metadata (image));
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break;
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case PIKA_UNDO_PARASITE_ATTACH:
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case PIKA_UNDO_PARASITE_REMOVE:
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pika_assert (image_undo->parasite_name != NULL);
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image_undo->parasite = pika_parasite_copy
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(pika_image_parasite_find (image, image_undo->parasite_name));
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break;
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default:
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g_return_if_reached ();
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}
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}
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static void
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pika_image_undo_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (object);
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switch (property_id)
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{
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case PROP_PREVIOUS_ORIGIN_X:
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image_undo->previous_origin_x = g_value_get_int (value);
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break;
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case PROP_PREVIOUS_ORIGIN_Y:
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image_undo->previous_origin_y = g_value_get_int (value);
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break;
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case PROP_PREVIOUS_WIDTH:
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image_undo->previous_width = g_value_get_int (value);
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break;
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case PROP_PREVIOUS_HEIGHT:
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image_undo->previous_height = g_value_get_int (value);
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break;
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case PROP_GRID:
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{
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PikaGrid *grid = g_value_get_object (value);
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if (grid)
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image_undo->grid = pika_config_duplicate (PIKA_CONFIG (grid));
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}
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break;
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case PROP_PARASITE_NAME:
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image_undo->parasite_name = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_image_undo_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (object);
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switch (property_id)
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{
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case PROP_PREVIOUS_ORIGIN_X:
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g_value_set_int (value, image_undo->previous_origin_x);
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break;
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case PROP_PREVIOUS_ORIGIN_Y:
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g_value_set_int (value, image_undo->previous_origin_y);
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break;
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case PROP_PREVIOUS_WIDTH:
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g_value_set_int (value, image_undo->previous_width);
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break;
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case PROP_PREVIOUS_HEIGHT:
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g_value_set_int (value, image_undo->previous_height);
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break;
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case PROP_GRID:
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g_value_set_object (value, image_undo->grid);
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break;
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case PROP_PARASITE_NAME:
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g_value_set_string (value, image_undo->parasite_name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static gint64
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pika_image_undo_get_memsize (PikaObject *object,
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gint64 *gui_size)
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{
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PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (object);
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gint64 memsize = 0;
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if (image_undo->colormap)
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memsize += PIKA_IMAGE_COLORMAP_SIZE;
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if (image_undo->metadata)
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memsize += pika_g_object_get_memsize (G_OBJECT (image_undo->metadata));
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memsize += pika_object_get_memsize (PIKA_OBJECT (image_undo->grid),
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gui_size);
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memsize += pika_string_get_memsize (image_undo->parasite_name);
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memsize += pika_parasite_get_memsize (image_undo->parasite, gui_size);
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return memsize + PIKA_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static void
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pika_image_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum)
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{
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PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (undo);
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PikaImage *image = undo->image;
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PikaImagePrivate *private = PIKA_IMAGE_GET_PRIVATE (image);
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PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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switch (undo->undo_type)
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{
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case PIKA_UNDO_IMAGE_TYPE:
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{
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PikaImageBaseType base_type;
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base_type = image_undo->base_type;
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image_undo->base_type = pika_image_get_base_type (image);
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g_object_set (image, "base-type", base_type, NULL);
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pika_image_colormap_changed (image, -1);
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if (image_undo->base_type != pika_image_get_base_type (image))
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{
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if ((image_undo->base_type == PIKA_GRAY) ||
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(pika_image_get_base_type (image) == PIKA_GRAY))
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{
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/* in case there was no profile undo, we need to emit
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* profile-changed anyway
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*/
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pika_color_managed_profile_changed (PIKA_COLOR_MANAGED (image));
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}
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accum->mode_changed = TRUE;
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}
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}
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break;
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case PIKA_UNDO_IMAGE_PRECISION:
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{
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PikaPrecision precision;
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precision = image_undo->precision;
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image_undo->precision = pika_image_get_precision (image);
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g_object_set (image, "precision", precision, NULL);
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if (image_undo->precision != pika_image_get_precision (image))
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accum->precision_changed = TRUE;
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}
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break;
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case PIKA_UNDO_IMAGE_SIZE:
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{
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gint width;
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gint height;
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gint previous_origin_x;
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gint previous_origin_y;
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gint previous_width;
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gint previous_height;
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width = image_undo->width;
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height = image_undo->height;
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previous_origin_x = image_undo->previous_origin_x;
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previous_origin_y = image_undo->previous_origin_y;
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previous_width = image_undo->previous_width;
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previous_height = image_undo->previous_height;
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/* Transform to a redo */
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image_undo->width = pika_image_get_width (image);
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image_undo->height = pika_image_get_height (image);
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image_undo->previous_origin_x = -previous_origin_x;
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image_undo->previous_origin_y = -previous_origin_y;
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image_undo->previous_width = width;
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image_undo->previous_height = height;
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g_object_set (image,
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"width", width,
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"height", height,
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NULL);
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pika_drawable_invalidate_boundary
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(PIKA_DRAWABLE (pika_image_get_mask (image)));
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if (pika_image_get_width (image) != image_undo->width ||
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pika_image_get_height (image) != image_undo->height)
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{
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accum->size_changed = TRUE;
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accum->previous_origin_x = previous_origin_x;
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accum->previous_origin_y = previous_origin_y;
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accum->previous_width = previous_width;
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accum->previous_height = previous_height;
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}
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}
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break;
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case PIKA_UNDO_IMAGE_RESOLUTION:
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{
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gdouble xres;
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gdouble yres;
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pika_image_get_resolution (image, &xres, &yres);
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if (ABS (image_undo->xresolution - xres) >= 1e-5 ||
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ABS (image_undo->yresolution - yres) >= 1e-5)
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{
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private->xresolution = image_undo->xresolution;
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private->yresolution = image_undo->yresolution;
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image_undo->xresolution = xres;
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image_undo->yresolution = yres;
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accum->resolution_changed = TRUE;
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}
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}
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if (image_undo->resolution_unit != pika_image_get_unit (image))
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{
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PikaUnit unit;
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unit = pika_image_get_unit (image);
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private->resolution_unit = image_undo->resolution_unit;
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image_undo->resolution_unit = unit;
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accum->unit_changed = TRUE;
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}
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break;
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case PIKA_UNDO_IMAGE_GRID:
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{
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PikaGrid *grid;
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grid = pika_config_duplicate (PIKA_CONFIG (pika_image_get_grid (image)));
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pika_image_set_grid (image, image_undo->grid, FALSE);
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g_object_unref (image_undo->grid);
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image_undo->grid = grid;
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}
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break;
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case PIKA_UNDO_IMAGE_COLORMAP:
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{
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guchar *colormap;
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gint num_colors;
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num_colors = pika_image_get_colormap_size (image);
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colormap = pika_image_get_colormap (image);
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if (image_undo->colormap)
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pika_image_set_colormap (image,
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image_undo->colormap, image_undo->num_colors,
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FALSE);
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else
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pika_image_unset_colormap (image, FALSE);
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if (image_undo->colormap)
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g_free (image_undo->colormap);
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image_undo->num_colors = num_colors;
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image_undo->colormap = colormap;
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}
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break;
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case PIKA_UNDO_IMAGE_HIDDEN_PROFILE:
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{
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PikaColorProfile *hidden_profile = NULL;
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g_set_object (&hidden_profile, _pika_image_get_hidden_profile (image));
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_pika_image_set_hidden_profile (image, image_undo->hidden_profile,
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FALSE);
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image_undo->hidden_profile = hidden_profile;
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}
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break;
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case PIKA_UNDO_IMAGE_METADATA:
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{
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PikaMetadata *metadata;
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metadata = pika_metadata_duplicate (pika_image_get_metadata (image));
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pika_image_set_metadata (image, image_undo->metadata, FALSE);
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if (image_undo->metadata)
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g_object_unref (image_undo->metadata);
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image_undo->metadata = metadata;
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}
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break;
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case PIKA_UNDO_PARASITE_ATTACH:
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case PIKA_UNDO_PARASITE_REMOVE:
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{
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PikaParasite *parasite = image_undo->parasite;
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image_undo->parasite = pika_parasite_copy
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(pika_image_parasite_find (image, image_undo->parasite_name));
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if (parasite)
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pika_image_parasite_attach (image, parasite, FALSE);
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else
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pika_image_parasite_detach (image, image_undo->parasite_name, FALSE);
|
|
|
|
if (parasite)
|
|
pika_parasite_free (parasite);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
g_return_if_reached ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_image_undo_free (PikaUndo *undo,
|
|
PikaUndoMode undo_mode)
|
|
{
|
|
PikaImageUndo *image_undo = PIKA_IMAGE_UNDO (undo);
|
|
|
|
g_clear_object (&image_undo->grid);
|
|
g_clear_pointer (&image_undo->colormap, g_free);
|
|
g_clear_object (&image_undo->hidden_profile);
|
|
g_clear_object (&image_undo->metadata);
|
|
g_clear_pointer (&image_undo->parasite_name, g_free);
|
|
g_clear_pointer (&image_undo->parasite, pika_parasite_free);
|
|
|
|
PIKA_UNDO_CLASS (parent_class)->free (undo, undo_mode);
|
|
}
|
