105 lines
3.8 KiB
C
105 lines
3.8 KiB
C
/*
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* mooundo.h
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*
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* Copyright (C) 2004-2006 by Yevgen Muntyan <muntyan@math.tamu.edu>
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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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* See COPYING file that comes with this distribution.
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*/
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#ifndef __MOO_UNDO_H__
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#define __MOO_UNDO_H__
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define MOO_TYPE_UNDO_STACK (moo_undo_stack_get_type ())
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#define MOO_UNDO_STACK(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), MOO_TYPE_UNDO_STACK, MooUndoStack))
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#define MOO_UNDO_STACK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), MOO_TYPE_UNDO_STACK, MooUndoStackClass))
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#define MOO_IS_UNDO_STACK(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), MOO_TYPE_UNDO_STACK))
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#define MOO_IS_UNDO_STACK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MOO_TYPE_UNDO_STACK))
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#define MOO_UNDO_STACK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), MOO_TYPE_UNDO_STACK, MooUndoStackClass))
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typedef struct _MooUndoStack MooUndoStack;
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typedef struct _MooUndoStackPrivate MooUndoStackPrivate;
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typedef struct _MooUndoStackClass MooUndoStackClass;
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typedef struct _MooUndoAction MooUndoAction;
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typedef struct _MooUndoActionClass MooUndoActionClass;
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typedef void (*MooUndoActionUndo) (MooUndoAction *action,
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gpointer document);
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typedef void (*MooUndoActionRedo) (MooUndoAction *action,
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gpointer document);
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typedef gboolean (*MooUndoActionMerge) (MooUndoAction *action,
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MooUndoAction *what,
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gpointer document);
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typedef void (*MooUndoActionDestroy)(MooUndoAction *action,
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gpointer document);
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struct _MooUndoActionClass
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{
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MooUndoActionUndo undo;
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MooUndoActionRedo redo;
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MooUndoActionMerge merge;
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MooUndoActionDestroy destroy;
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};
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struct _MooUndoStack
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{
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GObject base;
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gpointer document;
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GSList *undo_stack; /* ActionGroup* */
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GSList *redo_stack; /* ActionGroup* */
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guint frozen;
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guint continue_group;
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gboolean do_continue;
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gboolean new_group;
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};
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struct _MooUndoStackClass
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{
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GObjectClass base_class;
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void (*undo) (MooUndoStack *stack);
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void (*redo) (MooUndoStack *stack);
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};
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GType moo_undo_stack_get_type (void) G_GNUC_CONST;
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MooUndoStack *moo_undo_stack_new (gpointer document);
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guint moo_undo_action_register (MooUndoActionClass *klass);
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void moo_undo_stack_add_action (MooUndoStack *stack,
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guint type,
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MooUndoAction *action);
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void moo_undo_stack_clear (MooUndoStack *stack);
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void moo_undo_stack_freeze (MooUndoStack *stack);
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void moo_undo_stack_thaw (MooUndoStack *stack);
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gboolean moo_undo_stack_frozen (MooUndoStack *stack);
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void moo_undo_stack_new_group (MooUndoStack *stack);
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void moo_undo_stack_start_group (MooUndoStack *stack);
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void moo_undo_stack_end_group (MooUndoStack *stack);
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void moo_undo_stack_undo (MooUndoStack *stack);
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void moo_undo_stack_redo (MooUndoStack *stack);
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gboolean moo_undo_stack_can_undo (MooUndoStack *stack);
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gboolean moo_undo_stack_can_redo (MooUndoStack *stack);
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G_END_DECLS
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#endif /* __MOO_UNDO_H__ */
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