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* src/LyXAction.cpp: add ReadOnly flag to LFUN_UNDO and LFUN_REDO, since we do not want the dispatch mechanism to mark buffer dirty after them. * src/BufferView.cpp: handle "by hand" the activation of undo/redo * src/Undo.cpp: add lyx_clean member to UndoElement and make sure to maintain it with undo operations; add a new markDirty() member for UndoStack * src/Buffer.cpp: when saving a document, mark the undo and redo stacks elements as dirty. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35068 a592a061-630c-0410-9148-cb99ea01b6c8
120 lines
2.9 KiB
C++
120 lines
2.9 KiB
C++
// -*- C++ -*-
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/**
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* \file Undo.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Asger Alstrup
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* \author Lars Gullik Bjønnes
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* \author John Levon
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* \author André Pönitz
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* \author Jürgen Vigna
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* \author Abdelrazak Younes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef UNDO_H
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#define UNDO_H
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#include "support/types.h"
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namespace lyx {
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class Buffer;
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class BufferParams;
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class DocIterator;
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class MathData;
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class ParagraphList;
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/// This is used to combine consecutive undo recordings of the same kind.
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enum UndoKind {
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/**
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* Insert something - these will combine to one big chunk
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* when many inserts come after each other.
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*/
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INSERT_UNDO,
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/**
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* Delete something - these will combine to one big chunk
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* when many deletes come after each other.
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*/
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DELETE_UNDO,
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/// Atomic - each of these will have its own entry in the stack
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ATOMIC_UNDO
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};
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class Undo
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{
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public:
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Undo(Buffer &);
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~Undo();
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/// this will undo the last action - returns false if no undo possible
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bool textUndo(DocIterator &);
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/// this will redo the last undo - returns false if no redo possible
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bool textRedo(DocIterator &);
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/// End a sequence of INSERT_UNDO or DELETE_UNDO type of undo
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/// operations (grouping of consecutive characters insertion/deletion).
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void finishUndo();
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///
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bool hasUndoStack() const;
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///
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bool hasRedoStack() const;
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/// Mark all the elements of the undo and redo stacks as dirty
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void markDirty();
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/// open a new group of undo operations.
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/**
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* Groups can be nested. Such a nested group e.g. { {} {} } is undone in
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* a single step. This means you can add a group whenever you are not sure.
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*/
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void beginUndoGroup();
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/// end the current undo group.
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void endUndoGroup();
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/// The general case: record undo information for an arbitrary range.
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/**
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* Record undo information - call with the current cursor and
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* the 'other end' of the range of changed paragraphs. So we
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* give an inclusive range. This is called before you make the
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* changes to the paragraph, and it will record the original
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* information of the paragraphs in the undo stack.
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*/
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void recordUndo(DocIterator const & cur, UndoKind kind,
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pit_type from, pit_type to);
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/// Convenience: record undo information for the range between
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/// 'from' and cursor.
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void recordUndo(DocIterator const & cur, UndoKind kind, pit_type from);
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/// Convenience: record undo information for the single
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/// paragraph or cell containing the cursor.
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void recordUndo(DocIterator const & cur, UndoKind kind = ATOMIC_UNDO);
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/// Convenience: record undo information for the inset
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/// containing the cursor.
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void recordUndoInset(DocIterator const & cur,
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UndoKind kind = ATOMIC_UNDO);
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/// Convenience: prepare undo for the whole buffer
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void recordUndoFullDocument(DocIterator const & cur);
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private:
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struct Private;
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Private * const d;
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};
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} // namespace lyx
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#endif // UNDO_H
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