mirror of https://github.com/fltk/fltk
38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
//
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// FLUID undo definitions for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2024 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#ifndef undo_h
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#define undo_h
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class Fl_Widget;
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#define kUndoWindowResize 1
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extern int undo_current; // Current undo level in buffer
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extern int undo_last; // Last undo level in buffer
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extern int undo_save; // Last undo level that was saved
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extern int undo_once_type; // Suspend further undos of the same type
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void redo_cb(Fl_Widget *, void *); // Redo menu callback
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void undo_cb(Fl_Widget *, void *); // Undo menu callback
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void undo_checkpoint(); // Save current file to undo buffer
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void undo_checkpoint_once(int type); // Save undo buffer once until a different checkpoint type is called
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void undo_clear(); // Clear undo buffer
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void undo_resume(); // Resume undo checkpoints
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void undo_suspend(); // Suspend undo checkpoints
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#endif // !undo_h
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