PIKApp/app/core/pikaundo.h

104 lines
3.7 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __PIKA_UNDO_H__
#define __PIKA_UNDO_H__
#include "pikaviewable.h"
struct _PikaUndoAccumulator
{
gboolean mode_changed;
gboolean precision_changed;
gboolean size_changed;
gint previous_origin_x;
gint previous_origin_y;
gint previous_width;
gint previous_height;
gboolean resolution_changed;
gboolean unit_changed;
};
#define PIKA_TYPE_UNDO (pika_undo_get_type ())
#define PIKA_UNDO(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_UNDO, PikaUndo))
#define PIKA_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_UNDO, PikaUndoClass))
#define PIKA_IS_UNDO(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_UNDO))
#define PIKA_IS_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_UNDO))
#define PIKA_UNDO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_UNDO, PikaUndoClass))
typedef struct _PikaUndoClass PikaUndoClass;
struct _PikaUndo
{
PikaViewable parent_instance;
PikaImage *image; /* the image this undo is part of */
guint time; /* time of undo step construction */
PikaUndoType undo_type; /* undo type */
PikaDirtyMask dirty_mask; /* affected parts of the image */
PikaTempBuf *preview;
guint preview_idle_id;
};
struct _PikaUndoClass
{
PikaViewableClass parent_class;
void (* pop) (PikaUndo *undo,
PikaUndoMode undo_mode,
PikaUndoAccumulator *accum);
void (* free) (PikaUndo *undo,
PikaUndoMode undo_mode);
};
GType pika_undo_get_type (void) G_GNUC_CONST;
void pika_undo_pop (PikaUndo *undo,
PikaUndoMode undo_mode,
PikaUndoAccumulator *accum);
void pika_undo_free (PikaUndo *undo,
PikaUndoMode undo_mode);
void pika_undo_create_preview (PikaUndo *undo,
PikaContext *context,
gboolean create_now);
void pika_undo_refresh_preview (PikaUndo *undo,
PikaContext *context);
const gchar * pika_undo_type_to_name (PikaUndoType type);
gboolean pika_undo_is_weak (PikaUndo *undo);
gint pika_undo_get_age (PikaUndo *undo);
void pika_undo_reset_age (PikaUndo *undo);
#endif /* __PIKA_UNDO_H__ */