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75e8e3877c
2001-03-05 Sven Neumann <sven@gimp.org> * app/Makefile.am * app/apptypes.h * app/gimpimage-undo.[ch] * app/gimpundo.[ch] * app/gimpundostack.[ch]: added new GimpUndo and GimpUndoStack objects which will be used for the upcoming new undo system. Actually my current plan for the undo system is to keep it pretty much as it is... * app/gimpimage.[ch]: added new GimpUndoStacks but temporarily kept old GSLists around, so I don't break everything now.
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/* The GIMP -- an 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GIMP_UNDO_H__
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#define __GIMP_UNDO_H__
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#include "gimpviewable.h"
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#define GIMP_TYPE_UNDO (gimp_undo_get_type ())
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#define GIMP_UNDO(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_UNDO, GimpUndo))
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#define GIMP_UNDO_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_UNDO, GimpUndoClass))
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#define GIMP_IS_UNDO(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_UNDO))
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#define GIMP_IS_UNDO_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_UNDO))
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typedef gboolean (* GimpUndoPopFunc) (GimpUndo *undo, GimpImage *gimage);
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typedef void (* GimpUndoFreeFunc) (GimpUndo *undo);
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typedef struct _GimpUndoClass GimpUndoClass;
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struct _GimpUndo
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{
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GimpViewable parent_instance;
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gpointer data; /* data to implement the undo */
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glong size; /* size of undo item */
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gboolean dirties_image; /* TRUE if undo mutates image */
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GimpUndoPopFunc pop_func; /* function pointer to undo pop proc */
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GimpUndoFreeFunc free_func; /* function pointer to free undo data */
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TempBuf *preview;
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};
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struct _GimpUndoClass
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{
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GimpViewableClass parent_class;
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void (* push) (GimpUndo *undo,
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GimpImage *gimage);
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void (* pop) (GimpUndo *undo,
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GimpImage *gimage);
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};
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GtkType gimp_undo_get_type (void);
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GimpUndo * gimp_undo_new (const gchar *name,
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gpointer data,
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glong size,
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gboolean dirties_image,
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GimpUndoPopFunc pop_func,
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GimpUndoFreeFunc free_func);
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void gimp_undo_push (GimpUndo *undo,
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GimpImage *gimage);
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void gimp_undo_pop (GimpUndo *undo,
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GimpImage *gimage);
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#endif /* __GIMP_UNDO_H__ */
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