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566e084f63
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7527 a592a061-630c-0410-9148-cb99ea01b6c8
321 lines
8.2 KiB
C++
321 lines
8.2 KiB
C++
// -*- C++ -*-
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/**
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* \file paragraph.h
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* Copyright 1995 Matthias Ettrich
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* Copyright 2002 the LyX Team
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* Read the file COPYING
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*/
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#ifndef PARAGRAPH_H
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#define PARAGRAPH_H
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#include "lyxlayout_ptr_fwd.h"
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#include "lyxfont.h" // Just for LyXFont::FONT_SIZE
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#include "InsetList.h"
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#include "insets/inset.h" // Just for InsetOld::Code
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#include "support/types.h"
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#include "changes.h"
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#include "LString.h"
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class Buffer;
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class BufferParams;
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class BufferView;
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class Counters;
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class InsetBibitem;
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class Language;
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class LaTeXFeatures;
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class LatexRunParams;
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class ParagraphParameters;
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class TexRow;
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class ParagraphList;
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class UpdatableInset;
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/// A Paragraph holds all text, attributes and insets in a text paragraph
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class Paragraph {
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public:
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///
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enum META_KIND {
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/// Note that this is 1 right now to avoid
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/// crashes where getChar() is called wrongly
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/// (returning 0) - if this was 0, then we'd
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/// try getInset() and crash. We should fix
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/// all these places.
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META_INSET = 1
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};
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///
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typedef char value_type;
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/// The same as ParameterStruct::depth_type
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typedef unsigned int depth_type;
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///
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Paragraph();
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///
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Paragraph(Paragraph const &);
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///
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void operator=(Paragraph const &);
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/// the destructor removes the new paragraph from the list
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~Paragraph();
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///
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Language const * getParLanguage(BufferParams const &) const;
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///
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bool isRightToLeftPar(BufferParams const &) const;
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///
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void changeLanguage(BufferParams const & bparams,
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Language const * from, Language const * to);
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///
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bool isMultiLingual(BufferParams const &);
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///
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string const asString(Buffer const *, bool label) const;
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///
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string const asString(Buffer const *, lyx::pos_type beg, lyx::pos_type end,
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bool label) const;
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///
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void write(Buffer const *, std::ostream &, BufferParams const &,
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depth_type & depth) const;
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///
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void validate(LaTeXFeatures &) const;
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/// return the unique ID of this paragraph
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int id() const;
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/// Set the Id of this paragraph.
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void id(int);
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///
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int startTeXParParams(BufferParams const &, std::ostream &, bool) const;
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///
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int endTeXParParams(BufferParams const &, std::ostream &, bool) const;
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///
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bool simpleTeXOnePar(Buffer const *, BufferParams const &,
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LyXFont const & outerfont, std::ostream &,
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TexRow & texrow, LatexRunParams const &);
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///
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bool hasSameLayout(Paragraph const & par) const;
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///
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void makeSameLayout(Paragraph const & par);
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///
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UpdatableInset * inInset() const;
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///
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void setInsetOwner(UpdatableInset * inset);
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///
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void deleteInsetsLyXText(BufferView *);
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///
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lyx::pos_type size() const;
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///
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bool empty() const;
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///
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void setContentsFromPar(Paragraph const & par);
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///
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void clearContents();
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///
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LyXLayout_ptr const & layout() const;
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///
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void layout(LyXLayout_ptr const & new_layout);
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///
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char enumdepth;
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///
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char itemdepth;
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///
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InsetBibitem * bibitem() const; // ale970302
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/// initialise tracking for this par
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void trackChanges(Change::Type = Change::UNCHANGED);
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/// stop tracking
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void untrackChanges();
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/// set entire paragraph to new text for change tracking
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void cleanChanges();
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/// look up change type at given pos
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Change::Type lookupChange(lyx::pos_type pos) const;
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/// look up change at given pos
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Change const lookupChangeFull(lyx::pos_type pos) const;
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/// is there a change within the given range ?
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bool isChanged(lyx::pos_type start, lyx::pos_type end) const;
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/// is there a non-addition in this range ?
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bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
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/// set change at pos
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void setChange(lyx::pos_type pos, Change::Type type);
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/// accept change
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void acceptChange(lyx::pos_type start, lyx::pos_type end);
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/// reject change
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void rejectChange(lyx::pos_type start, lyx::pos_type end);
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/// mark whole par as erased
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void markErased();
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/// Paragraphs can contain "manual labels", for example, Description
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/// environment. The text for this user-editable label is stored in
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/// the paragraph alongside the text of the rest of the paragraph
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/// (the body). This function returns the starting position of the
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/// body of the text in the paragraph.
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int beginningOfBody() const;
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///
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string const & getLabelstring() const;
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/// the next two functions are for the manual labels
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string const getLabelWidthString() const;
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///
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void setLabelWidthString(string const & s);
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///
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char getAlign() const;
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/// The nesting depth of a paragraph
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depth_type getDepth() const;
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/// The maximal possible depth of a paragraph after this one
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depth_type getMaxDepthAfter() const;
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///
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void applyLayout(LyXLayout_ptr const & new_layout);
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/// definite erase
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void eraseIntern(lyx::pos_type pos);
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/// erase the char at the given position
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bool erase(lyx::pos_type pos);
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/// erase the given range. Returns the number of chars actually erased
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int erase(lyx::pos_type start, lyx::pos_type end);
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/** Get uninstantiated font setting. Returns the difference
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between the characters font and the layoutfont.
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This is what is stored in the fonttable
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*/
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LyXFont const
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getFontSettings(BufferParams const &, lyx::pos_type pos) const;
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///
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LyXFont const getFirstFontSettings() const;
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/** Get fully instantiated font. If pos == -1, use the layout
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font attached to this paragraph.
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If pos == -2, use the label font of the layout attached here.
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In all cases, the font is instantiated, i.e. does not have any
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attributes with values LyXFont::INHERIT, LyXFont::IGNORE or
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LyXFont::TOGGLE.
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*/
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LyXFont const getFont(BufferParams const &, lyx::pos_type pos,
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LyXFont const & outerfont) const;
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LyXFont const getLayoutFont(BufferParams const &,
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LyXFont const & outerfont) const;
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LyXFont const getLabelFont(BufferParams const &,
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LyXFont const & outerfont) const;
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/**
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* The font returned by the above functions is the same in a
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* span of characters. This method will return the last position
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* in the paragraph for which that font is the same.
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* This can be used to avoid unnecessary calls to getFont.
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*/
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lyx::pos_type getEndPosOfFontSpan(lyx::pos_type pos) const;
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///
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value_type getChar(lyx::pos_type pos) const;
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///
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value_type getUChar(BufferParams const &, lyx::pos_type pos) const;
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/// The position must already exist.
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void setChar(lyx::pos_type pos, value_type c);
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/// pos <= size() (there is a dummy font change at the end of each par)
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void setFont(lyx::pos_type pos, LyXFont const & font);
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/// Returns the height of the highest font in range
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LyXFont::FONT_SIZE
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highestFontInRange(lyx::pos_type startpos,
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lyx::pos_type endpos,
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LyXFont::FONT_SIZE const def_size) const;
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///
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void insertChar(lyx::pos_type pos, value_type c);
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///
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void insertChar(lyx::pos_type pos, value_type c, LyXFont const &, Change change = Change(Change::INSERTED));
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///
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bool checkInsertChar(LyXFont &);
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///
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void insertInset(lyx::pos_type pos, InsetOld * inset);
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///
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void insertInset(lyx::pos_type pos, InsetOld * inset, LyXFont const &, Change change = Change(Change::INSERTED));
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///
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bool insetAllowed(InsetOld::Code code);
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///
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InsetOld * getInset(lyx::pos_type pos);
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///
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InsetOld const * getInset(lyx::pos_type pos) const;
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///
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bool isHfill(lyx::pos_type pos) const;
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///
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bool isInset(lyx::pos_type pos) const;
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///
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bool isNewline(lyx::pos_type pos) const;
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///
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bool isSeparator(lyx::pos_type pos) const;
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///
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bool isLineSeparator(lyx::pos_type pos) const;
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///
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bool isKomma(lyx::pos_type pos) const;
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/// Used by the spellchecker
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bool isLetter(lyx::pos_type pos) const;
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///
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bool isWord(lyx::pos_type pos) const;
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/// returns -1 if inset not found
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int getPositionOfInset(InsetOld const * inset) const;
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///
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int stripLeadingSpaces();
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/// return true if we allow multiple spaces
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bool isFreeSpacing() const;
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/// return true if we allow this par to stay empty
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bool allowEmpty() const;
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///
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ParagraphParameters & params();
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///
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ParagraphParameters const & params() const;
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///
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InsetList insetlist;
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private:
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///
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LyXLayout_ptr layout_;
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struct Pimpl;
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///
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friend struct Paragraph::Pimpl;
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///
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Pimpl * pimpl_;
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};
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inline bool isInsertedText(Paragraph const & par, lyx::pos_type pos)
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{
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return par.lookupChange(pos) == Change::INSERTED;
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}
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inline bool isDeletedText(Paragraph const & par, lyx::pos_type pos)
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{
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return par.lookupChange(pos) == Change::DELETED;
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}
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#endif // PARAGRAPH_H
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