104 lines
3.7 KiB
C
104 lines
3.7 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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#ifndef __PIKA_UNDO_H__
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#define __PIKA_UNDO_H__
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#include "pikaviewable.h"
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struct _PikaUndoAccumulator
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{
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gboolean mode_changed;
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gboolean precision_changed;
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gboolean size_changed;
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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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gboolean resolution_changed;
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gboolean unit_changed;
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};
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#define PIKA_TYPE_UNDO (pika_undo_get_type ())
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#define PIKA_UNDO(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_UNDO, PikaUndo))
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#define PIKA_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_UNDO, PikaUndoClass))
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#define PIKA_IS_UNDO(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_UNDO))
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#define PIKA_IS_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_UNDO))
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#define PIKA_UNDO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_UNDO, PikaUndoClass))
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typedef struct _PikaUndoClass PikaUndoClass;
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struct _PikaUndo
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{
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PikaViewable parent_instance;
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PikaImage *image; /* the image this undo is part of */
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guint time; /* time of undo step construction */
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PikaUndoType undo_type; /* undo type */
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PikaDirtyMask dirty_mask; /* affected parts of the image */
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PikaTempBuf *preview;
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guint preview_idle_id;
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};
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struct _PikaUndoClass
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{
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PikaViewableClass parent_class;
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void (* pop) (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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void (* free) (PikaUndo *undo,
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PikaUndoMode undo_mode);
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};
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GType pika_undo_get_type (void) G_GNUC_CONST;
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void pika_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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void pika_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode);
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void pika_undo_create_preview (PikaUndo *undo,
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PikaContext *context,
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gboolean create_now);
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void pika_undo_refresh_preview (PikaUndo *undo,
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PikaContext *context);
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const gchar * pika_undo_type_to_name (PikaUndoType type);
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gboolean pika_undo_is_weak (PikaUndo *undo);
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gint pika_undo_get_age (PikaUndo *undo);
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void pika_undo_reset_age (PikaUndo *undo);
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#endif /* __PIKA_UNDO_H__ */
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