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8283e978f8
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3803 a592a061-630c-0410-9148-cb99ea01b6c8
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// -*- C++ -*-
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/* This file is part of
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* ======================================================
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*
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* LyX, The Document Processor
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*
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* Copyright 1995-2001 The LyX Team.
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*
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* ====================================================== */
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#ifndef UNDO_FUNCS_H
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#define UNDO_FUNCS_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "undo.h"
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class BufferView;
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class Paragraph;
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class LyXCursor;
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/// returns false if no undo possible
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extern bool textUndo(BufferView *);
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/// returns false if no redo possible
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extern bool textRedo(BufferView *);
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/// used by TextUndo/TextRedo
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extern bool textHandleUndo(BufferView *, Undo * undo);
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/// makes sure the next operation will be stored
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extern void finishUndo();
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/// this is dangerous and for internal use only
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extern void freezeUndo();
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/// this is dangerous and for internal use only
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extern void unFreezeUndo();
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///
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extern void setUndo(BufferView *, Undo::undo_kind kind,
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Paragraph const * first, Paragraph const * behind);
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///
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extern void setRedo(BufferView *, Undo::undo_kind kind,
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Paragraph const * first, Paragraph const * behind);
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///
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extern Undo * createUndo(BufferView *, Undo::undo_kind kind,
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Paragraph const * first, Paragraph const * behind);
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/// for external use in lyx_cb.C
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extern void setCursorParUndo(BufferView *);
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// returns a pointer to the very first Paragraph depending of where we are
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// so it will return the first paragraph of the buffer or the first paragraph
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// of the textinset we're in.
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extern Paragraph * firstUndoParagraph(BufferView *, int inset_arg);
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///
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extern LyXCursor const & undoCursor(BufferView * bv);
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/// the flag used by FinishUndo();
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extern bool undo_finished;
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/// a flag
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extern bool undo_frozen;
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#endif
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