2004-03-01 17:12:09 +00:00
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// -*- C++ -*-
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/**
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2007-04-26 04:41:58 +00:00
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* \file DocIterator.h
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2004-03-01 17:12:09 +00:00
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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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2008-11-14 15:58:50 +00:00
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* \author André Pönitz
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2004-03-01 17:12:09 +00:00
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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 DOCITERATOR_H
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#define DOCITERATOR_H
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2007-04-26 04:41:58 +00:00
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#include "CursorSlice.h"
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2004-03-01 17:12:09 +00:00
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#include <vector>
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2020-10-24 10:06:17 +00:00
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#include <algorithm> // std::min in MSVC 2017
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2006-10-21 00:16:43 +00:00
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namespace lyx {
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2008-11-17 11:46:07 +00:00
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class DocIterator;
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Move some Cursor methods to CursorData
Basically, everything that does not depend on a BufferView should move
there. Some methods that do not seem to need a BufferView, like
selHandle or IdxFirst or push actually depend on it and could not be
moved.
This allows to simplify a few uses of recordUndo helpers.
- Move some methods to DocIterator: nextMath, prevMath, getPossibleLabel,
getEncoding;
- Move some methods to CursorData: setCursor, setCursorSelectionTo,
(setCursorTo|normal|reset)Anchor, (set|clear)Selection,
sel(|ection)(Begin|End), selectionAsString, info, currentState,
(mark|clear|check)NewWordPosition, fixIfBroken, sanitize, all undo
related methods, reset, isInside, leaveInset, current mode;
- kill some unused methods: macromode, replaceWord, setScreenPos, touch,
markInsert, markErase;
- Move code around to group things, and add a few comments (a lot remains to be done).
This changes lead to some related changes in other classes: removal,
change of parameter.
No intended change.
2017-07-23 16:13:33 +00:00
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class Encoding;
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class FontSpan;
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class InsetIterator;
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2007-11-28 22:12:03 +00:00
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class LyXErr;
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2004-03-18 12:53:43 +00:00
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class MathAtom;
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class Paragraph;
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2007-11-28 22:12:03 +00:00
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class Text;
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2004-03-01 17:12:09 +00:00
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2021-10-08 01:14:18 +00:00
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DocIterator doc_iterator_begin(Buffer const * buf, Inset const * inset = nullptr);
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DocIterator doc_iterator_end(Buffer const * buf, Inset const * inset = nullptr);
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2004-03-01 17:12:09 +00:00
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2008-11-17 11:46:07 +00:00
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class DocIterator
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2004-03-01 17:12:09 +00:00
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{
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public:
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2004-03-18 16:41:45 +00:00
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///
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2020-11-27 23:14:32 +00:00
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DocIterator() = default;
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// We could be able to get rid of this if only every BufferView were
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// associated to a buffer on construction.
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explicit DocIterator(Buffer *buf)
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: buffer_(buf)
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{}
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2008-11-17 11:46:07 +00:00
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/// access to owning buffer
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Buffer * buffer() const { return buffer_; }
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/// access to owning buffer
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void setBuffer(Buffer * buf) { buffer_ = buf; }
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2004-03-18 16:41:45 +00:00
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2010-01-09 14:47:47 +00:00
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/// Clone this for given \p buffer.
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/// \p buffer must be a clone of buffer_.
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DocIterator clone(Buffer * buffer) const;
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2005-07-06 07:28:16 +00:00
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/// access slice at position \p i
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2005-07-15 15:49:40 +00:00
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CursorSlice const & operator[](size_t i) const { return slices_[i]; }
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/// access slice at position \p i
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2005-07-15 15:49:40 +00:00
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CursorSlice & operator[](size_t i) { return slices_[i]; }
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/// chop a few slices from the iterator
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2005-02-08 13:18:05 +00:00
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void resize(size_t i) { slices_.resize(i); }
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2004-03-27 12:37:41 +00:00
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/// is the iterator valid?
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2016-09-03 22:51:10 +00:00
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explicit operator bool() const { return !empty(); }
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2004-03-27 12:37:41 +00:00
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2005-07-06 07:28:16 +00:00
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/// does this iterator have any content?
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2005-02-08 13:18:05 +00:00
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bool empty() const { return slices_.empty(); }
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/// is this the begin position?
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bool atBegin() const { return depth() == 1 && pit() == 0 && pos() == 0; }
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2008-02-09 15:23:05 +00:00
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/// is this the end position?
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bool atEnd() const { return slices_.empty(); }
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2005-02-08 13:18:05 +00:00
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2015-05-08 09:13:32 +00:00
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/// checks the cursor slices for disabled spell checker insets
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bool allowSpellCheck() const;
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2004-03-01 17:12:09 +00:00
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//
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// access to slice at tip
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//
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/// access to tip
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2005-02-08 13:18:05 +00:00
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CursorSlice & top() { return slices_.back(); }
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/// access to tip
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2005-02-08 13:18:05 +00:00
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CursorSlice const & top() const { return slices_.back(); }
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2004-04-03 08:37:12 +00:00
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/// access to outermost slice
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2005-02-08 13:18:05 +00:00
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CursorSlice & bottom() { return slices_.front(); }
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2005-07-06 07:28:16 +00:00
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/// access to outermost slice
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2005-02-08 13:18:05 +00:00
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CursorSlice const & bottom() const { return slices_.front(); }
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/// how many nested insets do we have?
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size_t depth() const { return slices_.size(); }
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/// the containing inset
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2007-04-29 13:39:47 +00:00
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Inset & inset() const { return top().inset(); }
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/// return the cell of the inset this cursor is in
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idx_type idx() const { return top().idx(); }
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/// return the cell of the inset this cursor is in
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idx_type & idx() { return top().idx(); }
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/// return the last possible cell in this inset
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idx_type lastidx() const;
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/// return the paragraph this cursor is in
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pit_type pit() const { return top().pit(); }
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/// return the paragraph this cursor is in
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2005-02-08 13:18:05 +00:00
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pit_type & pit() { return top().pit(); }
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2004-03-01 17:12:09 +00:00
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/// return the last possible paragraph in this inset
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2004-11-24 21:53:46 +00:00
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pit_type lastpit() const;
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2004-03-01 17:12:09 +00:00
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/// return the position within the paragraph
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pos_type pos() const { return top().pos(); }
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/// return the position within the paragraph
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pos_type & pos() { return top().pos(); }
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/// return the last position within the paragraph
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pos_type lastpos() const;
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/// return the number of embedded cells
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size_t nargs() const;
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/// return the number of embedded cells
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size_t ncols() const;
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/// return the number of embedded cells
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size_t nrows() const;
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/// return the grid row of the top cell
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row_type row() const;
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/// return the last row of the top grid
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row_type lastrow() const { return nrows() - 1; }
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/// return the grid column of the top cell
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col_type col() const;
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/// return the last column of the top grid
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col_type lastcol() const { return ncols() - 1; }
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/// the inset just behind the cursor
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2018-02-07 22:19:20 +00:00
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/// returns 0 if there is no inset (e.g. normal text)
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2007-08-23 21:13:01 +00:00
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Inset * nextInset() const;
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2004-03-01 17:12:09 +00:00
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/// the inset just in front of the cursor
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2007-08-23 21:13:01 +00:00
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Inset * prevInset() const;
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2005-07-15 15:49:40 +00:00
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///
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bool boundary() const { return boundary_; }
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///
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void boundary(bool b) { boundary_ = b; }
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2004-03-01 17:12:09 +00:00
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2007-01-08 15:30:17 +00:00
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// the two methods below have been inlined out because of
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// profiling results under linux when opening a document.
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2007-01-08 10:50:15 +00:00
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/// are we in mathed?.
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2007-01-08 15:30:17 +00:00
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bool inMathed() const
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{ return !empty() && inset().inMathed(); }
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2007-01-08 10:50:15 +00:00
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/// are we in texted?.
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2007-01-08 15:30:17 +00:00
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bool inTexted() const
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{ return !empty() && !inset().inMathed(); }
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2008-11-16 00:12:21 +00:00
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/// are we in regexp-mode ?
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bool inRegexped() const;
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2004-03-01 17:12:09 +00:00
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//
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// math-specific part
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//
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/// return the mathed cell this cursor is in
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2007-08-23 21:13:01 +00:00
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MathData & cell() const;
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Move some Cursor methods to CursorData
Basically, everything that does not depend on a BufferView should move
there. Some methods that do not seem to need a BufferView, like
selHandle or IdxFirst or push actually depend on it and could not be
moved.
This allows to simplify a few uses of recordUndo helpers.
- Move some methods to DocIterator: nextMath, prevMath, getPossibleLabel,
getEncoding;
- Move some methods to CursorData: setCursor, setCursorSelectionTo,
(setCursorTo|normal|reset)Anchor, (set|clear)Selection,
sel(|ection)(Begin|End), selectionAsString, info, currentState,
(mark|clear|check)NewWordPosition, fixIfBroken, sanitize, all undo
related methods, reset, isInside, leaveInset, current mode;
- kill some unused methods: macromode, replaceWord, setScreenPos, touch,
markInsert, markErase;
- Move code around to group things, and add a few comments (a lot remains to be done).
This changes lead to some related changes in other classes: removal,
change of parameter.
No intended change.
2017-07-23 16:13:33 +00:00
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///
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InsetMath & nextMath();
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///
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InsetMath & prevMath();
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2004-03-01 17:12:09 +00:00
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/// the mathatom left of the cursor
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2007-08-23 21:13:01 +00:00
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MathAtom & prevAtom() const;
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2004-03-01 17:12:09 +00:00
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/// the mathatom right of the cursor
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2007-08-23 21:13:01 +00:00
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MathAtom & nextAtom() const;
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2004-03-01 17:12:09 +00:00
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// text-specific part
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//
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2007-04-30 11:46:02 +00:00
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/// the paragraph we're in in text mode.
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/// \warning only works within text!
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2007-08-23 21:13:01 +00:00
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Paragraph & paragraph() const;
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2007-04-30 11:46:02 +00:00
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/// the paragraph we're in in any case.
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2007-09-14 12:52:39 +00:00
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/// This method will give the containing paragraph even
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/// if not in text mode (ex: in mathed).
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2007-08-23 21:13:01 +00:00
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Paragraph & innerParagraph() const;
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2007-09-14 12:52:39 +00:00
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/// return the inner text slice.
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CursorSlice const & innerTextSlice() const;
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2017-01-09 22:15:16 +00:00
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// convert a DocIterator into an argument to LFUN_PARAGRAPH_GOTO
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docstring paragraphGotoArgument() const;
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2015-11-30 22:25:03 +00:00
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/// returns a DocIterator for the containing text inset
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DocIterator getInnerText() const;
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2011-02-03 17:27:13 +00:00
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/// the first and last positions of a word at top cursor slice
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/// \warning only works within text!
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FontSpan locateWord(word_location const loc) const;
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2005-01-31 16:29:48 +00:00
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///
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2007-08-23 21:13:01 +00:00
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Text * text() const;
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2005-11-24 16:22:39 +00:00
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/// the containing inset or the cell, respectively
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2007-04-29 13:39:47 +00:00
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Inset * realInset() const;
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2004-03-01 17:12:09 +00:00
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///
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2007-04-29 13:39:47 +00:00
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Inset * innerInsetOfType(int code) const;
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2004-03-01 17:12:09 +00:00
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///
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2007-08-23 21:13:01 +00:00
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Text * innerText() const;
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2004-03-01 17:12:09 +00:00
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//
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// elementary moving
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//
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2017-02-18 18:12:55 +00:00
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/// move one step backwards
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bool posBackward();
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/// move one step forward
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bool posForward();
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2006-01-28 09:46:58 +00:00
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/**
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* move on one logical position, descend into nested insets
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2008-01-12 23:08:21 +00:00
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* including collapsed insets
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2006-01-28 09:46:58 +00:00
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*/
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2008-01-12 23:08:21 +00:00
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void forwardPos();
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/**
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* move on one logical position, descend into nested insets
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* skip collapsed insets
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*/
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void forwardPosIgnoreCollapsed();
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2004-03-25 09:16:36 +00:00
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/// move on one physical character or inset
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void forwardChar();
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2004-03-01 17:12:09 +00:00
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/// move on one paragraph
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void forwardPar();
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2018-02-07 22:24:05 +00:00
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/// move on to the next closest inset
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2004-03-01 17:12:09 +00:00
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void forwardInset();
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2004-03-25 09:16:36 +00:00
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/// move backward one logical position
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void backwardPos();
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2020-08-16 14:54:03 +00:00
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/// move backward one logical position, skip collapsed insets
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void backwardPosIgnoreCollapsed();
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2004-03-25 09:16:36 +00:00
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/// move backward one physical character or inset
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void backwardChar();
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/// move backward one paragraph
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void backwardPar();
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/// move backward one inset
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2023-11-06 17:04:44 +00:00
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void backwardInset();
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2004-03-25 09:16:36 +00:00
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2004-08-14 21:03:55 +00:00
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/// are we some 'extension' (i.e. deeper nested) of the given iterator
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bool hasPart(DocIterator const & it) const;
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2004-03-08 21:14:45 +00:00
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/// output
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friend std::ostream &
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2004-03-31 19:11:56 +00:00
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operator<<(std::ostream & os, DocIterator const & cur);
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2007-11-28 22:12:03 +00:00
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friend LyXErr & operator<<(LyXErr & os, DocIterator const & it);
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2005-07-15 15:49:40 +00:00
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///
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2005-02-08 13:18:05 +00:00
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friend bool operator==(DocIterator const &, DocIterator const &);
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2007-05-15 17:07:55 +00:00
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friend bool operator<(DocIterator const &, DocIterator const &);
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friend bool operator>(DocIterator const &, DocIterator const &);
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friend bool operator<=(DocIterator const &, DocIterator const &);
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2005-07-15 15:49:40 +00:00
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///
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2005-02-08 13:18:05 +00:00
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friend class StableDocIterator;
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2005-08-03 20:21:11 +00:00
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//protected:
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2005-07-15 15:49:40 +00:00
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///
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2005-02-08 13:18:05 +00:00
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void clear() { slices_.clear(); }
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2005-07-15 15:49:40 +00:00
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///
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void push_back(CursorSlice const & sl) { slices_.push_back(sl); }
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///
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void pop_back() { slices_.pop_back(); }
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2005-10-25 09:14:11 +00:00
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/// recompute the inset parts of the cursor from the document data
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2007-04-29 13:39:47 +00:00
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void updateInsets(Inset * inset);
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2007-05-25 23:17:24 +00:00
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/// fix DocIterator in circumstances that should never happen.
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/// \return true if the DocIterator was fixed.
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bool fixIfBroken();
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2012-07-17 20:26:44 +00:00
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/// Repopulate the slices insets from bottom to top. Useful
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/// for stable iterators or Undo data.
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void sanitize();
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2018-08-26 14:59:35 +00:00
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///
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bool isInside(Inset const *) const;
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/// make sure we are outside of given inset
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void leaveInset(Inset const & inset);
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2005-10-25 09:14:11 +00:00
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2007-11-01 10:56:18 +00:00
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/// find index of CursorSlice with &cell() == &cell (or -1 if not found)
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2008-02-09 22:05:24 +00:00
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int find(MathData const & cell) const;
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2007-11-01 10:56:18 +00:00
|
|
|
/// find index of CursorSlice with inset() == inset (or -1 of not found)
|
2008-02-26 19:19:59 +00:00
|
|
|
int find(Inset const * inset) const;
|
2008-02-09 22:05:24 +00:00
|
|
|
/// cut off CursorSlices with index > above and store cut off slices in cut.
|
|
|
|
void cutOff(int above, std::vector<CursorSlice> & cut);
|
2007-11-01 10:56:18 +00:00
|
|
|
/// cut off CursorSlices with index > above
|
2008-02-09 22:05:24 +00:00
|
|
|
void cutOff(int above);
|
2007-11-01 10:56:18 +00:00
|
|
|
/// push CursorSlices on top
|
|
|
|
void append(std::vector<CursorSlice> const & x);
|
|
|
|
/// push one CursorSlice on top and set its index and position
|
|
|
|
void append(idx_type idx, pos_type pos);
|
|
|
|
|
Move some Cursor methods to CursorData
Basically, everything that does not depend on a BufferView should move
there. Some methods that do not seem to need a BufferView, like
selHandle or IdxFirst or push actually depend on it and could not be
moved.
This allows to simplify a few uses of recordUndo helpers.
- Move some methods to DocIterator: nextMath, prevMath, getPossibleLabel,
getEncoding;
- Move some methods to CursorData: setCursor, setCursorSelectionTo,
(setCursorTo|normal|reset)Anchor, (set|clear)Selection,
sel(|ection)(Begin|End), selectionAsString, info, currentState,
(mark|clear|check)NewWordPosition, fixIfBroken, sanitize, all undo
related methods, reset, isInside, leaveInset, current mode;
- kill some unused methods: macromode, replaceWord, setScreenPos, touch,
markInsert, markErase;
- Move code around to group things, and add a few comments (a lot remains to be done).
This changes lead to some related changes in other classes: removal,
change of parameter.
No intended change.
2017-07-23 16:13:33 +00:00
|
|
|
///
|
|
|
|
docstring getPossibleLabel() const;
|
|
|
|
|
|
|
|
///
|
|
|
|
Encoding const * getEncoding() const;
|
2004-03-30 08:18:09 +00:00
|
|
|
private:
|
2008-02-09 15:23:05 +00:00
|
|
|
friend class InsetIterator;
|
2008-11-17 11:46:07 +00:00
|
|
|
friend DocIterator doc_iterator_begin(Buffer const * buf, Inset const * inset);
|
|
|
|
friend DocIterator doc_iterator_end(Buffer const * buf, Inset const * inset);
|
2008-02-09 15:23:05 +00:00
|
|
|
///
|
2020-11-27 23:14:32 +00:00
|
|
|
explicit DocIterator(Buffer * buf, Inset * inset)
|
|
|
|
: inset_(inset), buffer_(buf)
|
|
|
|
{}
|
|
|
|
|
2005-07-15 15:49:40 +00:00
|
|
|
/**
|
2008-01-31 22:50:16 +00:00
|
|
|
* Normally, when the cursor is at position i, it is painted *before*
|
2017-07-03 17:45:58 +00:00
|
|
|
* the character at position i. However, what if we want the cursor
|
2008-01-31 22:50:16 +00:00
|
|
|
* painted *after* position i? That's what boundary_ is for: if
|
|
|
|
* boundary_==true, the cursor is painted *after* position i-1, instead
|
|
|
|
* of before position i.
|
2005-07-15 15:49:40 +00:00
|
|
|
*
|
2008-01-31 22:50:16 +00:00
|
|
|
* Note 1: Usually, after i-1 or before i are actually the same place!
|
2017-07-03 17:45:58 +00:00
|
|
|
* However, this is not the case when i-1 and i are not painted
|
2008-01-31 22:50:16 +00:00
|
|
|
* contiguously, and in these cases we sometimes do want to have control
|
|
|
|
* over whether to paint before i or after i-1.
|
|
|
|
* Some concrete examples of where this happens:
|
|
|
|
* a. i-1 at the end of one row, i at the beginning of next row
|
|
|
|
* b. in bidi text, at transitions between RTL and LTR or vice versa
|
|
|
|
*
|
2017-07-03 17:45:58 +00:00
|
|
|
* Note 2: Why i and i-1? Why, if boundary_==false means: *before* i,
|
|
|
|
* couldn't boundary_==true mean: *after* i?
|
|
|
|
* Well, the reason is this: cursor position is not used only for
|
2008-01-31 22:50:16 +00:00
|
|
|
* painting the cursor, but it also affects other things, for example:
|
|
|
|
* where the next insertion will be placed (it is inserted at the current
|
|
|
|
* position, pushing anything at the current position and beyond forward).
|
|
|
|
* Now, when the current position is i and boundary_==true, insertion would
|
|
|
|
* happen *before* i. If the cursor, however, were painted *after* i, that
|
|
|
|
* would be very unnatural...
|
2005-07-15 15:49:40 +00:00
|
|
|
*/
|
2020-11-27 23:14:32 +00:00
|
|
|
bool boundary_ = false;
|
2005-07-15 15:49:40 +00:00
|
|
|
///
|
2008-11-17 11:46:07 +00:00
|
|
|
std::vector<CursorSlice> const & internalData() const { return slices_; }
|
2005-07-15 15:49:40 +00:00
|
|
|
///
|
2005-02-08 13:18:05 +00:00
|
|
|
std::vector<CursorSlice> slices_;
|
2005-07-15 15:49:40 +00:00
|
|
|
///
|
2020-11-27 23:14:32 +00:00
|
|
|
Inset * inset_ = nullptr;
|
2008-11-17 11:46:07 +00:00
|
|
|
///
|
2020-11-27 23:14:32 +00:00
|
|
|
Buffer * buffer_ = nullptr;
|
2004-03-01 17:12:09 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
2007-11-28 22:12:03 +00:00
|
|
|
inline bool operator==(DocIterator const & di1, DocIterator const & di2)
|
2005-02-08 13:18:05 +00:00
|
|
|
{
|
|
|
|
return di1.slices_ == di2.slices_;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-11-28 22:12:03 +00:00
|
|
|
inline bool operator!=(DocIterator const & di1, DocIterator const & di2)
|
2005-02-08 13:18:05 +00:00
|
|
|
{
|
|
|
|
return !(di1 == di2);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-12-21 20:42:46 +00:00
|
|
|
inline
|
|
|
|
bool operator<(DocIterator const & p, DocIterator const & q)
|
|
|
|
{
|
|
|
|
size_t depth = std::min(p.depth(), q.depth());
|
|
|
|
for (size_t i = 0 ; i < depth ; ++i) {
|
|
|
|
if (p[i] != q[i])
|
|
|
|
return p[i] < q[i];
|
|
|
|
}
|
|
|
|
return p.depth() < q.depth();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-07-03 17:45:58 +00:00
|
|
|
inline
|
2007-12-21 20:42:46 +00:00
|
|
|
bool operator>(DocIterator const & p, DocIterator const & q)
|
|
|
|
{
|
|
|
|
return q < p;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-07-03 17:45:58 +00:00
|
|
|
inline
|
2007-12-21 20:42:46 +00:00
|
|
|
bool operator<=(DocIterator const & p, DocIterator const & q)
|
|
|
|
{
|
|
|
|
return !(q < p);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-07-03 17:45:58 +00:00
|
|
|
inline
|
2008-08-12 09:51:00 +00:00
|
|
|
bool operator>=(DocIterator const & p, DocIterator const & q)
|
|
|
|
{
|
|
|
|
return !(p < q);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-03-31 19:11:56 +00:00
|
|
|
// The difference to a ('non stable') DocIterator is the removed
|
2007-01-04 22:01:43 +00:00
|
|
|
// (overwritten by 0...) part of the CursorSlice data items. So this thing
|
2004-03-08 21:14:45 +00:00
|
|
|
// is suitable for external storage, but not for iteration as such.
|
|
|
|
|
2008-11-17 11:46:07 +00:00
|
|
|
class StableDocIterator
|
|
|
|
{
|
2004-03-08 21:14:45 +00:00
|
|
|
public:
|
|
|
|
///
|
2004-03-31 19:11:56 +00:00
|
|
|
StableDocIterator() {}
|
2004-03-08 21:14:45 +00:00
|
|
|
/// non-explicit intended
|
2004-03-31 19:11:56 +00:00
|
|
|
StableDocIterator(const DocIterator & it);
|
2004-03-08 21:14:45 +00:00
|
|
|
///
|
2008-11-17 11:46:07 +00:00
|
|
|
DocIterator asDocIterator(Buffer * buf) const;
|
2004-03-08 21:14:45 +00:00
|
|
|
///
|
|
|
|
size_t size() const { return data_.size(); }
|
2005-10-13 17:20:30 +00:00
|
|
|
/// return the position within the paragraph
|
|
|
|
pos_type pos() const { return data_.back().pos(); }
|
|
|
|
/// return the position within the paragraph
|
|
|
|
pos_type & pos() { return data_.back().pos(); }
|
2004-03-08 21:14:45 +00:00
|
|
|
///
|
|
|
|
friend std::ostream &
|
2004-03-31 19:11:56 +00:00
|
|
|
operator<<(std::ostream & os, StableDocIterator const & cur);
|
2004-03-08 21:14:45 +00:00
|
|
|
///
|
|
|
|
friend std::istream &
|
2004-03-31 19:11:56 +00:00
|
|
|
operator>>(std::istream & is, StableDocIterator & cur);
|
2005-07-01 12:36:28 +00:00
|
|
|
///
|
|
|
|
friend bool
|
|
|
|
operator==(StableDocIterator const &, StableDocIterator const &);
|
2004-03-08 21:14:45 +00:00
|
|
|
private:
|
|
|
|
std::vector<CursorSlice> data_;
|
|
|
|
};
|
|
|
|
|
2006-10-21 00:16:43 +00:00
|
|
|
} // namespace lyx
|
|
|
|
|
2008-11-17 11:46:07 +00:00
|
|
|
#endif // DOCITERATOR_H
|