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2003-02-12 Michael Natterer <mitch@gimp.org> Moved the undo system to the core: Keep GimpUndoStack objects as undo and redo stack. Use GimpUndo objects as members of the stacks. GimpUndoStack is derived from GimpUndo and keeps undo groups, so undo group handling is much simpler than before (the whole group is just a single GimpUndo object on the stack and not everything between group boundary markers). * app/Makefile.am * app/undo_types.h: removed. * app/config/gimpcoreconfig.[ch]: added "gulong undo_size". * app/config/gimprc-blurbs.h: and its blurb. * app/core/core-enums.[ch]: added GimpUndoMode and GimpUndoType. * app/core/core-types.h: removed UndoType, added GimpUndoAccumulator, GimpUndoPopFunc and GimpUndoFreeFunc. * app/core/gimpundo.[ch]: do everything the old "Undo" struct did. Removed the virtual push() function and added free(). * app/core/gimpundostack.[ch]: keeps the new undo/redo stacks and also acts as undo group. * app/core/gimpimage-undo.[ch]: moved the undo apparatus here. * app/core/gimpimage.[ch]: removed the old stuff. * app/core/gimpmarshal.list: added marshaller needed for GimpUndo. * app/undo.[ch]: removed the whole undo mechanism. Only the actual undo pushing functions are left. * app/undo_history.c * app/gui/edit-commands.c * app/gui/file-commands.c * app/gui/image-menu.c * app/gui/preferences-dialog.c * app/tools/gimpeditselectiontool.c: changed accordingly.
97 lines
3.5 KiB
C
97 lines
3.5 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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struct _GimpUndoAccumulator
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{
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gboolean mode_changed;
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gboolean size_changed;
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gboolean resolution_changed;
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gboolean unit_changed;
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gboolean mask_changed;
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gboolean qmask_changed;
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gboolean alpha_changed;
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};
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#define GIMP_TYPE_UNDO (gimp_undo_get_type ())
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#define GIMP_UNDO(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_UNDO, GimpUndo))
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#define GIMP_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_UNDO, GimpUndoClass))
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#define GIMP_IS_UNDO(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_UNDO))
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#define GIMP_IS_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_UNDO))
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#define GIMP_UNDO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_UNDO, GimpUndoClass))
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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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GimpUndoType undo_type; /* undo type */
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gpointer data; /* data to implement the undo */
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gsize 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 (* pop) (GimpUndo *undo,
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GimpImage *gimage,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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void (* free) (GimpUndo *undo,
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GimpImage *gimage,
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GimpUndoMode undo_mode);
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};
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GType gimp_undo_get_type (void) G_GNUC_CONST;
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GimpUndo * gimp_undo_new (GimpUndoType undo_type,
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const gchar *name,
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gpointer data,
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gsize 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_pop (GimpUndo *undo,
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GimpImage *gimage,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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void gimp_undo_free (GimpUndo *undo,
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GimpImage *gimage,
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GimpUndoMode undo_mode);
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#endif /* __GIMP_UNDO_H__ */
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