mirror of
https://git.lyx.org/repos/lyx.git
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7753dd6e6f
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18235 a592a061-630c-0410-9148-cb99ea01b6c8
1956 lines
53 KiB
C++
1956 lines
53 KiB
C++
/**
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* \file src/text.cpp
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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 Jean-Marc Lasgouttes
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* \author John Levon
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* \author André Pönitz
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* \author Dekel Tsur
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* \author Jürgen Vigna
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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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#include <config.h>
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#include "Text.h"
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#include "Author.h"
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#include "Buffer.h"
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#include "buffer_funcs.h"
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#include "BufferParams.h"
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#include "BufferView.h"
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#include "bufferview_funcs.h"
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#include "Cursor.h"
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#include "ParIterator.h"
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#include "CoordCache.h"
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#include "CutAndPaste.h"
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#include "debug.h"
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#include "DispatchResult.h"
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#include "Encoding.h"
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#include "ErrorList.h"
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#include "FuncRequest.h"
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#include "factory.h"
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#include "FontIterator.h"
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#include "gettext.h"
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#include "Language.h"
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#include "Color.h"
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#include "Length.h"
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#include "Lexer.h"
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#include "LyXRC.h"
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#include "Row.h"
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#include "MetricsInfo.h"
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#include "Paragraph.h"
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#include "paragraph_funcs.h"
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#include "ParagraphParameters.h"
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#include "rowpainter.h"
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#include "Undo.h"
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#include "VSpace.h"
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#include "WordLangTuple.h"
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#include "frontends/FontMetrics.h"
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#include "frontends/Painter.h"
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#include "insets/InsetText.h"
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#include "insets/InsetBibitem.h"
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#include "insets/InsetCaption.h"
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#include "insets/InsetHFill.h"
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#include "insets/InsetLine.h"
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#include "insets/InsetNewline.h"
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#include "insets/InsetPagebreak.h"
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#include "insets/InsetOptArg.h"
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#include "insets/InsetSpace.h"
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#include "insets/InsetSpecialChar.h"
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#include "insets/InsetTabular.h"
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#include "support/lstrings.h"
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#include "support/textutils.h"
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#include "support/convert.h"
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#include <boost/current_function.hpp>
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#include <sstream>
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using std::auto_ptr;
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using std::advance;
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using std::distance;
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using std::max;
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using std::min;
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using std::endl;
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using std::string;
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namespace lyx {
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using support::bformat;
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using support::contains;
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using support::lowercase;
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using support::split;
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using support::uppercase;
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using cap::cutSelection;
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using cap::pasteParagraphList;
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using frontend::FontMetrics;
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namespace {
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void readParToken(Buffer const & buf, Paragraph & par, Lexer & lex,
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string const & token, Font & font, Change & change, ErrorList & errorList)
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{
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BufferParams const & bp = buf.params();
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if (token[0] != '\\') {
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#if 0
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string::const_iterator cit = token.begin();
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for (; cit != token.end(); ++cit)
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par.insertChar(par.size(), (*cit), font, change);
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#else
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docstring dstr = lex.getDocString();
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docstring::const_iterator cit = dstr.begin();
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docstring::const_iterator cend = dstr.end();
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for (; cit != cend; ++cit)
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par.insertChar(par.size(), *cit, font, change);
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#endif
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} else if (token == "\\begin_layout") {
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lex.eatLine();
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string layoutname = lex.getString();
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font = Font(Font::ALL_INHERIT, bp.language);
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change = Change(Change::UNCHANGED);
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TextClass const & tclass = bp.getTextClass();
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if (layoutname.empty()) {
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layoutname = tclass.defaultLayoutName();
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}
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bool hasLayout = tclass.hasLayout(layoutname);
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if (!hasLayout) {
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errorList.push_back(ErrorItem(_("Unknown layout"),
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bformat(_("Layout '%1$s' does not exist in textclass '%2$s'\nTrying to use the default instead.\n"),
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from_utf8(layoutname), from_utf8(tclass.name())), par.id(), 0, par.size()));
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layoutname = tclass.defaultLayoutName();
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}
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par.layout(bp.getTextClass()[layoutname]);
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// Test whether the layout is obsolete.
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Layout_ptr const & layout = par.layout();
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if (!layout->obsoleted_by().empty())
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par.layout(bp.getTextClass()[layout->obsoleted_by()]);
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par.params().read(lex);
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} else if (token == "\\end_layout") {
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lyxerr << BOOST_CURRENT_FUNCTION
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<< ": Solitary \\end_layout in line "
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<< lex.getLineNo() << "\n"
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<< "Missing \\begin_layout?.\n";
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} else if (token == "\\end_inset") {
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lyxerr << BOOST_CURRENT_FUNCTION
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<< ": Solitary \\end_inset in line "
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<< lex.getLineNo() << "\n"
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<< "Missing \\begin_inset?.\n";
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} else if (token == "\\begin_inset") {
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Inset * inset = readInset(lex, buf);
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if (inset)
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par.insertInset(par.size(), inset, font, change);
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else {
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lex.eatLine();
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docstring line = lex.getDocString();
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errorList.push_back(ErrorItem(_("Unknown Inset"), line,
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par.id(), 0, par.size()));
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}
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} else if (token == "\\family") {
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lex.next();
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font.setLyXFamily(lex.getString());
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} else if (token == "\\series") {
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lex.next();
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font.setLyXSeries(lex.getString());
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} else if (token == "\\shape") {
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lex.next();
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font.setLyXShape(lex.getString());
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} else if (token == "\\size") {
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lex.next();
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font.setLyXSize(lex.getString());
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} else if (token == "\\lang") {
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lex.next();
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string const tok = lex.getString();
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Language const * lang = languages.getLanguage(tok);
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if (lang) {
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font.setLanguage(lang);
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} else {
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font.setLanguage(bp.language);
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lex.printError("Unknown language `$$Token'");
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}
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} else if (token == "\\numeric") {
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lex.next();
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font.setNumber(font.setLyXMisc(lex.getString()));
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} else if (token == "\\emph") {
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lex.next();
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font.setEmph(font.setLyXMisc(lex.getString()));
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} else if (token == "\\bar") {
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lex.next();
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string const tok = lex.getString();
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if (tok == "under")
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font.setUnderbar(Font::ON);
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else if (tok == "no")
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font.setUnderbar(Font::OFF);
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else if (tok == "default")
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font.setUnderbar(Font::INHERIT);
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else
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lex.printError("Unknown bar font flag "
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"`$$Token'");
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} else if (token == "\\noun") {
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lex.next();
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font.setNoun(font.setLyXMisc(lex.getString()));
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} else if (token == "\\color") {
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lex.next();
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font.setLyXColor(lex.getString());
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} else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
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// Insets don't make sense in a free-spacing context! ---Kayvan
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if (par.isFreeSpacing()) {
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if (token == "\\InsetSpace")
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par.insertChar(par.size(), ' ', font, change);
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else if (lex.isOK()) {
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lex.next();
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string const next_token = lex.getString();
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if (next_token == "\\-")
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par.insertChar(par.size(), '-', font, change);
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else {
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lex.printError("Token `$$Token' "
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"is in free space "
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"paragraph layout!");
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}
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}
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} else {
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auto_ptr<Inset> inset;
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if (token == "\\SpecialChar" )
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inset.reset(new InsetSpecialChar);
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else
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inset.reset(new InsetSpace);
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inset->read(buf, lex);
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par.insertInset(par.size(), inset.release(),
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font, change);
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}
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} else if (token == "\\backslash") {
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par.insertChar(par.size(), '\\', font, change);
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} else if (token == "\\newline") {
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auto_ptr<Inset> inset(new InsetNewline);
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inset->read(buf, lex);
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par.insertInset(par.size(), inset.release(), font, change);
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} else if (token == "\\LyXTable") {
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auto_ptr<Inset> inset(new InsetTabular(buf));
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inset->read(buf, lex);
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par.insertInset(par.size(), inset.release(), font, change);
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} else if (token == "\\hfill") {
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par.insertInset(par.size(), new InsetHFill, font, change);
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} else if (token == "\\lyxline") {
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par.insertInset(par.size(), new InsetLine, font, change);
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} else if (token == "\\newpage") {
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par.insertInset(par.size(), new InsetPagebreak, font, change);
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} else if (token == "\\clearpage") {
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par.insertInset(par.size(), new InsetClearPage, font, change);
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} else if (token == "\\cleardoublepage") {
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par.insertInset(par.size(), new InsetClearDoublePage, font, change);
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} else if (token == "\\change_unchanged") {
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change = Change(Change::UNCHANGED);
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} else if (token == "\\change_inserted") {
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lex.eatLine();
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std::istringstream is(lex.getString());
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unsigned int aid;
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time_type ct;
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is >> aid >> ct;
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if (aid >= bp.author_map.size()) {
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errorList.push_back(ErrorItem(_("Change tracking error"),
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bformat(_("Unknown author index for insertion: %1$d\n"), aid),
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par.id(), 0, par.size()));
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change = Change(Change::UNCHANGED);
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} else
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change = Change(Change::INSERTED, bp.author_map[aid], ct);
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} else if (token == "\\change_deleted") {
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lex.eatLine();
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std::istringstream is(lex.getString());
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unsigned int aid;
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time_type ct;
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is >> aid >> ct;
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if (aid >= bp.author_map.size()) {
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errorList.push_back(ErrorItem(_("Change tracking error"),
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bformat(_("Unknown author index for deletion: %1$d\n"), aid),
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par.id(), 0, par.size()));
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change = Change(Change::UNCHANGED);
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} else
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change = Change(Change::DELETED, bp.author_map[aid], ct);
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} else {
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lex.eatLine();
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errorList.push_back(ErrorItem(_("Unknown token"),
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bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
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lex.getDocString()),
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par.id(), 0, par.size()));
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}
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}
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void readParagraph(Buffer const & buf, Paragraph & par, Lexer & lex,
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ErrorList & errorList)
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{
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lex.nextToken();
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string token = lex.getString();
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Font font;
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Change change(Change::UNCHANGED);
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while (lex.isOK()) {
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readParToken(buf, par, lex, token, font, change, errorList);
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lex.nextToken();
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token = lex.getString();
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if (token.empty())
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continue;
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if (token == "\\end_layout") {
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//Ok, paragraph finished
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break;
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}
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LYXERR(Debug::PARSER) << "Handling paragraph token: `"
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<< token << '\'' << endl;
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if (token == "\\begin_layout" || token == "\\end_document"
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|| token == "\\end_inset" || token == "\\begin_deeper"
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|| token == "\\end_deeper") {
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lex.pushToken(token);
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lyxerr << "Paragraph ended in line "
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<< lex.getLineNo() << "\n"
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<< "Missing \\end_layout.\n";
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break;
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}
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}
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// Final change goes to paragraph break:
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par.setChange(par.size(), change);
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// Initialize begin_of_body_ on load; redoParagraph maintains
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par.setBeginOfBody();
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}
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} // namespace anon
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double Text::spacing(Buffer const & buffer,
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Paragraph const & par) const
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{
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if (par.params().spacing().isDefault())
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return buffer.params().spacing().getValue();
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return par.params().spacing().getValue();
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}
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int Text::singleWidth(Buffer const & buffer, Paragraph const & par,
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pos_type pos) const
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{
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return singleWidth(par, pos, par.getChar(pos),
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getFont(buffer, par, pos));
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}
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int Text::singleWidth(Paragraph const & par,
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pos_type pos, char_type c, Font const & font) const
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{
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// The most common case is handled first (Asger)
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if (isPrintable(c)) {
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Language const * language = font.language();
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if (language->rightToLeft()) {
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if (language->lang() == "arabic") {
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if (Encodings::isComposeChar_arabic(c))
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return 0;
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c = par.transformChar(c, pos);
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} else if (language->lang() == "hebrew" &&
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Encodings::isComposeChar_hebrew(c))
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return 0;
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}
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return theFontMetrics(font).width(c);
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}
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if (c == Paragraph::META_INSET)
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return par.getInset(pos)->width();
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return theFontMetrics(font).width(c);
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}
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int Text::leftMargin(Buffer const & buffer, int max_width, pit_type pit) const
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{
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BOOST_ASSERT(pit >= 0);
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BOOST_ASSERT(pit < int(pars_.size()));
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return leftMargin(buffer, max_width, pit, pars_[pit].size());
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}
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int Text::leftMargin(Buffer const & buffer, int max_width,
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pit_type const pit, pos_type const pos) const
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{
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BOOST_ASSERT(pit >= 0);
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BOOST_ASSERT(pit < int(pars_.size()));
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Paragraph const & par = pars_[pit];
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BOOST_ASSERT(pos >= 0);
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BOOST_ASSERT(pos <= par.size());
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//lyxerr << "Text::leftMargin: pit: " << pit << " pos: " << pos << endl;
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TextClass const & tclass = buffer.params().getTextClass();
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Layout_ptr const & layout = par.layout();
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string parindent = layout->parindent;
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int l_margin = 0;
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if (isMainText(buffer))
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l_margin += changebarMargin();
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// FIXME UNICODE
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docstring leftm = from_utf8(tclass.leftmargin());
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l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
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if (par.getDepth() != 0) {
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// find the next level paragraph
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pit_type newpar = outerHook(pit, pars_);
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if (newpar != pit_type(pars_.size())) {
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if (pars_[newpar].layout()->isEnvironment()) {
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l_margin = leftMargin(buffer, max_width, newpar);
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}
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if (par.layout() == tclass.defaultLayout()) {
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if (pars_[newpar].params().noindent())
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parindent.erase();
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else
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parindent = pars_[newpar].layout()->parindent;
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}
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}
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}
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// This happens after sections in standard classes. The 1.3.x
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// code compared depths too, but it does not seem necessary
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// (JMarc)
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if (par.layout() == tclass.defaultLayout()
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&& pit > 0 && pars_[pit - 1].layout()->nextnoindent)
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parindent.erase();
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Font const labelfont = getLabelFont(buffer, par);
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FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
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switch (layout->margintype) {
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case MARGIN_DYNAMIC:
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if (!layout->leftmargin.empty()) {
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// FIXME UNICODE
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docstring leftm = from_utf8(layout->leftmargin);
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l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
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}
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if (!par.getLabelstring().empty()) {
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// FIXME UNICODE
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docstring labin = from_utf8(layout->labelindent);
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l_margin += labelfont_metrics.signedWidth(labin);
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docstring labstr = par.getLabelstring();
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l_margin += labelfont_metrics.width(labstr);
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docstring labsep = from_utf8(layout->labelsep);
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l_margin += labelfont_metrics.width(labsep);
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}
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break;
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case MARGIN_MANUAL: {
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// FIXME UNICODE
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docstring labin = from_utf8(layout->labelindent);
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l_margin += labelfont_metrics.signedWidth(labin);
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// The width of an empty par, even with manual label, should be 0
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if (!par.empty() && pos >= par.beginOfBody()) {
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if (!par.getLabelWidthString().empty()) {
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docstring labstr = par.getLabelWidthString();
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l_margin += labelfont_metrics.width(labstr);
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docstring labsep = from_utf8(layout->labelsep);
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l_margin += labelfont_metrics.width(labsep);
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}
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}
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break;
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}
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case MARGIN_STATIC: {
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// FIXME UNICODE
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docstring leftm = from_utf8(layout->leftmargin);
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l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm)
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* 4 / (par.getDepth() + 4);
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break;
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}
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case MARGIN_FIRST_DYNAMIC:
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if (layout->labeltype == LABEL_MANUAL) {
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if (pos >= par.beginOfBody()) {
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// FIXME UNICODE
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l_margin += labelfont_metrics.signedWidth(
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from_utf8(layout->leftmargin));
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} else {
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// FIXME UNICODE
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l_margin += labelfont_metrics.signedWidth(
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from_utf8(layout->labelindent));
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}
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} else if (pos != 0
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// Special case to fix problems with
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// theorems (JMarc)
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|| (layout->labeltype == LABEL_STATIC
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&& layout->latextype == LATEX_ENVIRONMENT
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&& !isFirstInSequence(pit, pars_))) {
|
|
// FIXME UNICODE
|
|
l_margin += labelfont_metrics.signedWidth(from_utf8(layout->leftmargin));
|
|
} else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
|
|
&& layout->labeltype != LABEL_BIBLIO
|
|
&& layout->labeltype !=
|
|
LABEL_CENTERED_TOP_ENVIRONMENT) {
|
|
l_margin += labelfont_metrics.signedWidth(from_utf8(layout->labelindent));
|
|
l_margin += labelfont_metrics.width(from_utf8(layout->labelsep));
|
|
l_margin += labelfont_metrics.width(par.getLabelstring());
|
|
}
|
|
break;
|
|
|
|
case MARGIN_RIGHT_ADDRESS_BOX: {
|
|
#if 0
|
|
// ok, a terrible hack. The left margin depends on the widest
|
|
// row in this paragraph.
|
|
RowList::iterator rit = par.rows().begin();
|
|
RowList::iterator end = par.rows().end();
|
|
#ifdef WITH_WARNINGS
|
|
#warning This is wrong.
|
|
#endif
|
|
int minfill = max_width;
|
|
for ( ; rit != end; ++rit)
|
|
if (rit->fill() < minfill)
|
|
minfill = rit->fill();
|
|
l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
|
|
l_margin += minfill;
|
|
#endif
|
|
// also wrong, but much shorter.
|
|
l_margin += max_width / 2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!par.params().leftIndent().zero())
|
|
l_margin += par.params().leftIndent().inPixels(max_width);
|
|
|
|
LyXAlignment align;
|
|
|
|
if (par.params().align() == LYX_ALIGN_LAYOUT)
|
|
align = layout->align;
|
|
else
|
|
align = par.params().align();
|
|
|
|
// set the correct parindent
|
|
if (pos == 0
|
|
&& (layout->labeltype == LABEL_NO_LABEL
|
|
|| layout->labeltype == LABEL_TOP_ENVIRONMENT
|
|
|| layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
|
|
|| (layout->labeltype == LABEL_STATIC
|
|
&& layout->latextype == LATEX_ENVIRONMENT
|
|
&& !isFirstInSequence(pit, pars_)))
|
|
&& align == LYX_ALIGN_BLOCK
|
|
&& !par.params().noindent()
|
|
// in some insets, paragraphs are never indented
|
|
&& !(par.inInset() && par.inInset()->neverIndent(buffer))
|
|
// display style insets are always centered, omit indentation
|
|
&& !(!par.empty()
|
|
&& par.isInset(pos)
|
|
&& par.getInset(pos)->display())
|
|
&& (par.layout() != tclass.defaultLayout()
|
|
|| buffer.params().paragraph_separation ==
|
|
BufferParams::PARSEP_INDENT))
|
|
{
|
|
docstring din = from_utf8(parindent);
|
|
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(din);
|
|
}
|
|
|
|
return l_margin;
|
|
}
|
|
|
|
|
|
Color_color Text::backgroundColor() const
|
|
{
|
|
return Color_color(Color::color(background_color_));
|
|
}
|
|
|
|
|
|
void Text::breakParagraph(Cursor & cur, bool keep_layout)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
Paragraph & cpar = cur.paragraph();
|
|
pit_type cpit = cur.pit();
|
|
|
|
TextClass const & tclass = cur.buffer().params().getTextClass();
|
|
Layout_ptr const & layout = cpar.layout();
|
|
|
|
// this is only allowed, if the current paragraph is not empty
|
|
// or caption and if it has not the keepempty flag active
|
|
if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
|
|
layout->labeltype != LABEL_SENSITIVE)
|
|
return;
|
|
|
|
// a layout change may affect also the following paragraph
|
|
recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
|
|
|
|
// Always break behind a space
|
|
// It is better to erase the space (Dekel)
|
|
if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
|
|
cpar.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
|
|
|
|
// What should the layout for the new paragraph be?
|
|
int preserve_layout = 0;
|
|
if (keep_layout)
|
|
preserve_layout = 2;
|
|
else
|
|
preserve_layout = layout->isEnvironment();
|
|
|
|
// We need to remember this before we break the paragraph, because
|
|
// that invalidates the layout variable
|
|
bool sensitive = layout->labeltype == LABEL_SENSITIVE;
|
|
|
|
// we need to set this before we insert the paragraph.
|
|
bool const isempty = cpar.allowEmpty() && cpar.empty();
|
|
|
|
lyx::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
|
|
cur.pos(), preserve_layout);
|
|
|
|
// After this, neither paragraph contains any rows!
|
|
|
|
cpit = cur.pit();
|
|
pit_type next_par = cpit + 1;
|
|
|
|
// well this is the caption hack since one caption is really enough
|
|
if (sensitive) {
|
|
if (cur.pos() == 0)
|
|
// set to standard-layout
|
|
pars_[cpit].applyLayout(tclass.defaultLayout());
|
|
else
|
|
// set to standard-layout
|
|
pars_[next_par].applyLayout(tclass.defaultLayout());
|
|
}
|
|
|
|
while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
|
|
if (!pars_[next_par].eraseChar(0, cur.buffer().params().trackChanges))
|
|
break; // the character couldn't be deleted physically due to change tracking
|
|
}
|
|
|
|
ParIterator current_it(cur);
|
|
ParIterator last_it(cur);
|
|
++last_it;
|
|
++last_it;
|
|
|
|
updateLabels(cur.buffer(), current_it, last_it);
|
|
|
|
// A singlePar update is not enough in this case.
|
|
cur.updateFlags(Update::Force);
|
|
|
|
// This check is necessary. Otherwise the new empty paragraph will
|
|
// be deleted automatically. And it is more friendly for the user!
|
|
if (cur.pos() != 0 || isempty)
|
|
setCursor(cur, cur.pit() + 1, 0);
|
|
else
|
|
setCursor(cur, cur.pit(), 0);
|
|
}
|
|
|
|
|
|
// insert a character, moves all the following breaks in the
|
|
// same Paragraph one to the right and make a rebreak
|
|
void Text::insertChar(Cursor & cur, char_type c)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
BOOST_ASSERT(c != Paragraph::META_INSET);
|
|
|
|
recordUndo(cur, Undo::INSERT);
|
|
|
|
Buffer const & buffer = cur.buffer();
|
|
Paragraph & par = cur.paragraph();
|
|
// try to remove this
|
|
pit_type const pit = cur.pit();
|
|
|
|
bool const freeSpacing = par.layout()->free_spacing ||
|
|
par.isFreeSpacing();
|
|
|
|
if (lyxrc.auto_number) {
|
|
static docstring const number_operators = from_ascii("+-/*");
|
|
static docstring const number_unary_operators = from_ascii("+-");
|
|
static docstring const number_seperators = from_ascii(".,:");
|
|
|
|
if (current_font.number() == Font::ON) {
|
|
if (!isDigit(c) && !contains(number_operators, c) &&
|
|
!(contains(number_seperators, c) &&
|
|
cur.pos() != 0 &&
|
|
cur.pos() != cur.lastpos() &&
|
|
getFont(buffer, par, cur.pos()).number() == Font::ON &&
|
|
getFont(buffer, par, cur.pos() - 1).number() == Font::ON)
|
|
)
|
|
number(cur); // Set current_font.number to OFF
|
|
} else if (isDigit(c) &&
|
|
real_current_font.isVisibleRightToLeft()) {
|
|
number(cur); // Set current_font.number to ON
|
|
|
|
if (cur.pos() != 0) {
|
|
char_type const c = par.getChar(cur.pos() - 1);
|
|
if (contains(number_unary_operators, c) &&
|
|
(cur.pos() == 1
|
|
|| par.isSeparator(cur.pos() - 2)
|
|
|| par.isNewline(cur.pos() - 2))
|
|
) {
|
|
setCharFont(buffer, pit, cur.pos() - 1, current_font);
|
|
} else if (contains(number_seperators, c)
|
|
&& cur.pos() >= 2
|
|
&& getFont(buffer, par, cur.pos() - 2).number() == Font::ON) {
|
|
setCharFont(buffer, pit, cur.pos() - 1, current_font);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// First check, if there will be two blanks together or a blank at
|
|
// the beginning of a paragraph.
|
|
// I decided to handle blanks like normal characters, the main
|
|
// difference are the special checks when calculating the row.fill
|
|
// (blank does not count at the end of a row) and the check here
|
|
|
|
// When the free-spacing option is set for the current layout,
|
|
// disable the double-space checking
|
|
if (!freeSpacing && isLineSeparatorChar(c)) {
|
|
if (cur.pos() == 0) {
|
|
static bool sent_space_message = false;
|
|
if (!sent_space_message) {
|
|
cur.message(_("You cannot insert a space at the "
|
|
"beginning of a paragraph. Please read the Tutorial."));
|
|
sent_space_message = true;
|
|
}
|
|
return;
|
|
}
|
|
BOOST_ASSERT(cur.pos() > 0);
|
|
if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
|
|
&& !par.isDeleted(cur.pos() - 1)) {
|
|
static bool sent_space_message = false;
|
|
if (!sent_space_message) {
|
|
cur.message(_("You cannot type two spaces this way. "
|
|
"Please read the Tutorial."));
|
|
sent_space_message = true;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
par.insertChar(cur.pos(), c, current_font, cur.buffer().params().trackChanges);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
|
|
// cur.updateFlags(Update::Force);
|
|
setCursor(cur.top(), cur.pit(), cur.pos() + 1);
|
|
charInserted();
|
|
}
|
|
|
|
|
|
void Text::charInserted()
|
|
{
|
|
// Here we call finishUndo for every 20 characters inserted.
|
|
// This is from my experience how emacs does it. (Lgb)
|
|
static unsigned int counter;
|
|
if (counter < 20) {
|
|
++counter;
|
|
} else {
|
|
finishUndo();
|
|
counter = 0;
|
|
}
|
|
}
|
|
|
|
|
|
// the cursor set functions have a special mechanism. When they
|
|
// realize, that you left an empty paragraph, they will delete it.
|
|
|
|
bool Text::cursorRightOneWord(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
Cursor old = cur;
|
|
|
|
if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
|
|
++old.pit();
|
|
old.pos() = 0;
|
|
} else {
|
|
// Advance through word.
|
|
while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
|
|
++old.pos();
|
|
// Skip through trailing nonword stuff.
|
|
while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
|
|
++old.pos();
|
|
}
|
|
return setCursor(cur, old.pit(), old.pos());
|
|
}
|
|
|
|
|
|
bool Text::cursorLeftOneWord(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
Cursor old = cur;
|
|
|
|
if (old.pos() == 0 && old.pit() != 0) {
|
|
--old.pit();
|
|
old.pos() = old.lastpos();
|
|
} else {
|
|
// Skip through initial nonword stuff.
|
|
while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
|
|
--old.pos();
|
|
// Advance through word.
|
|
while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
|
|
--old.pos();
|
|
}
|
|
return setCursor(cur, old.pit(), old.pos());
|
|
}
|
|
|
|
|
|
void Text::selectWord(Cursor & cur, word_location loc)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
CursorSlice from = cur.top();
|
|
CursorSlice to = cur.top();
|
|
getWord(from, to, loc);
|
|
if (cur.top() != from)
|
|
setCursor(cur, from.pit(), from.pos());
|
|
if (to == from)
|
|
return;
|
|
cur.resetAnchor();
|
|
setCursor(cur, to.pit(), to.pos());
|
|
cur.setSelection();
|
|
cap::saveSelection(cur);
|
|
}
|
|
|
|
|
|
// Select the word currently under the cursor when no
|
|
// selection is currently set
|
|
bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
if (cur.selection())
|
|
return false;
|
|
selectWord(cur, loc);
|
|
return cur.selection();
|
|
}
|
|
|
|
|
|
void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
if (!cur.selection())
|
|
return;
|
|
|
|
recordUndoSelection(cur, Undo::ATOMIC);
|
|
|
|
pit_type begPit = cur.selectionBegin().pit();
|
|
pit_type endPit = cur.selectionEnd().pit();
|
|
|
|
pos_type begPos = cur.selectionBegin().pos();
|
|
pos_type endPos = cur.selectionEnd().pos();
|
|
|
|
// keep selection info, because endPos becomes invalid after the first loop
|
|
bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
|
|
|
|
// first, accept/reject changes within each individual paragraph (do not consider end-of-par)
|
|
|
|
for (pit_type pit = begPit; pit <= endPit; ++pit) {
|
|
pos_type parSize = pars_[pit].size();
|
|
|
|
// ignore empty paragraphs; otherwise, an assertion will fail for
|
|
// acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
|
|
if (parSize == 0)
|
|
continue;
|
|
|
|
// do not consider first paragraph if the cursor starts at pos size()
|
|
if (pit == begPit && begPos == parSize)
|
|
continue;
|
|
|
|
// do not consider last paragraph if the cursor ends at pos 0
|
|
if (pit == endPit && endPos == 0)
|
|
break; // last iteration anyway
|
|
|
|
pos_type left = (pit == begPit ? begPos : 0);
|
|
pos_type right = (pit == endPit ? endPos : parSize);
|
|
|
|
if (op == ACCEPT) {
|
|
pars_[pit].acceptChanges(cur.buffer().params(), left, right);
|
|
} else {
|
|
pars_[pit].rejectChanges(cur.buffer().params(), left, right);
|
|
}
|
|
}
|
|
|
|
// next, accept/reject imaginary end-of-par characters
|
|
|
|
for (pit_type pit = begPit; pit <= endPit; ++pit) {
|
|
pos_type pos = pars_[pit].size();
|
|
|
|
// skip if the selection ends before the end-of-par
|
|
if (pit == endPit && endsBeforeEndOfPar)
|
|
break; // last iteration anyway
|
|
|
|
// skip if this is not the last paragraph of the document
|
|
// note: the user should be able to accept/reject the par break of the last par!
|
|
if (pit == endPit && pit + 1 != int(pars_.size()))
|
|
break; // last iteration anway
|
|
|
|
if (op == ACCEPT) {
|
|
if (pars_[pit].isInserted(pos)) {
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else if (pars_[pit].isDeleted(pos)) {
|
|
if (pit + 1 == int(pars_.size())) {
|
|
// we cannot remove a par break at the end of the last paragraph;
|
|
// instead, we mark it unchanged
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else {
|
|
mergeParagraph(cur.buffer().params(), pars_, pit);
|
|
--endPit;
|
|
--pit;
|
|
}
|
|
}
|
|
} else {
|
|
if (pars_[pit].isDeleted(pos)) {
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else if (pars_[pit].isInserted(pos)) {
|
|
if (pit + 1 == int(pars_.size())) {
|
|
// we mark the par break at the end of the last paragraph unchanged
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else {
|
|
mergeParagraph(cur.buffer().params(), pars_, pit);
|
|
--endPit;
|
|
--pit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// finally, invoke the DEPM
|
|
|
|
deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer().params().trackChanges);
|
|
|
|
//
|
|
|
|
finishUndo();
|
|
cur.clearSelection();
|
|
setCursorIntern(cur, begPit, begPos);
|
|
cur.updateFlags(Update::Force);
|
|
updateLabels(cur.buffer());
|
|
}
|
|
|
|
|
|
void Text::acceptChanges(BufferParams const & bparams)
|
|
{
|
|
pit_type pars_size = static_cast<pit_type>(pars_.size());
|
|
|
|
// first, accept changes within each individual paragraph
|
|
// (do not consider end-of-par)
|
|
for (pit_type pit = 0; pit < pars_size; ++pit) {
|
|
if (!pars_[pit].empty()) // prevent assertion failure
|
|
pars_[pit].acceptChanges(bparams, 0, pars_[pit].size());
|
|
}
|
|
|
|
// next, accept imaginary end-of-par characters
|
|
for (pit_type pit = 0; pit < pars_size; ++pit) {
|
|
pos_type pos = pars_[pit].size();
|
|
|
|
if (pars_[pit].isInserted(pos)) {
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else if (pars_[pit].isDeleted(pos)) {
|
|
if (pit == pars_size - 1) {
|
|
// we cannot remove a par break at the end of the last
|
|
// paragraph; instead, we mark it unchanged
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else {
|
|
mergeParagraph(bparams, pars_, pit);
|
|
--pit;
|
|
--pars_size;
|
|
}
|
|
}
|
|
}
|
|
|
|
// finally, invoke the DEPM
|
|
deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
|
|
}
|
|
|
|
|
|
void Text::rejectChanges(BufferParams const & bparams)
|
|
{
|
|
pit_type pars_size = static_cast<pit_type>(pars_.size());
|
|
|
|
// first, reject changes within each individual paragraph
|
|
// (do not consider end-of-par)
|
|
for (pit_type pit = 0; pit < pars_size; ++pit) {
|
|
if (!pars_[pit].empty()) // prevent assertion failure
|
|
pars_[pit].rejectChanges(bparams, 0, pars_[pit].size());
|
|
}
|
|
|
|
// next, reject imaginary end-of-par characters
|
|
for (pit_type pit = 0; pit < pars_size; ++pit) {
|
|
pos_type pos = pars_[pit].size();
|
|
|
|
if (pars_[pit].isDeleted(pos)) {
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else if (pars_[pit].isInserted(pos)) {
|
|
if (pit == pars_size - 1) {
|
|
// we mark the par break at the end of the last
|
|
// paragraph unchanged
|
|
pars_[pit].setChange(pos, Change(Change::UNCHANGED));
|
|
} else {
|
|
mergeParagraph(bparams, pars_, pit);
|
|
--pit;
|
|
--pars_size;
|
|
}
|
|
}
|
|
}
|
|
|
|
// finally, invoke the DEPM
|
|
deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
|
|
}
|
|
|
|
|
|
// Delete from cursor up to the end of the current or next word.
|
|
void Text::deleteWordForward(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
if (cur.lastpos() == 0)
|
|
cursorRight(cur);
|
|
else {
|
|
cur.resetAnchor();
|
|
cur.selection() = true;
|
|
cursorRightOneWord(cur);
|
|
cur.setSelection();
|
|
cutSelection(cur, true, false);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
}
|
|
|
|
|
|
// Delete from cursor to start of current or prior word.
|
|
void Text::deleteWordBackward(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
if (cur.lastpos() == 0)
|
|
cursorLeft(cur);
|
|
else {
|
|
cur.resetAnchor();
|
|
cur.selection() = true;
|
|
cursorLeftOneWord(cur);
|
|
cur.setSelection();
|
|
cutSelection(cur, true, false);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
}
|
|
|
|
|
|
// Kill to end of line.
|
|
void Text::deleteLineForward(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
if (cur.lastpos() == 0) {
|
|
// Paragraph is empty, so we just go to the right
|
|
cursorRight(cur);
|
|
} else {
|
|
cur.resetAnchor();
|
|
cur.selection() = true; // to avoid deletion
|
|
cursorEnd(cur);
|
|
cur.setSelection();
|
|
// What is this test for ??? (JMarc)
|
|
if (!cur.selection())
|
|
deleteWordForward(cur);
|
|
else
|
|
cutSelection(cur, true, false);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
}
|
|
|
|
|
|
void Text::changeCase(Cursor & cur, Text::TextCase action)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
CursorSlice from;
|
|
CursorSlice to;
|
|
|
|
if (cur.selection()) {
|
|
from = cur.selBegin();
|
|
to = cur.selEnd();
|
|
} else {
|
|
from = cur.top();
|
|
getWord(from, to, PARTIAL_WORD);
|
|
cursorRightOneWord(cur);
|
|
}
|
|
|
|
recordUndoSelection(cur, Undo::ATOMIC);
|
|
|
|
pit_type begPit = from.pit();
|
|
pit_type endPit = to.pit();
|
|
|
|
pos_type begPos = from.pos();
|
|
pos_type endPos = to.pos();
|
|
|
|
bool const trackChanges = cur.buffer().params().trackChanges;
|
|
|
|
pos_type right = 0; // needed after the for loop
|
|
|
|
for (pit_type pit = begPit; pit <= endPit; ++pit) {
|
|
pos_type parSize = pars_[pit].size();
|
|
|
|
pos_type pos = (pit == begPit ? begPos : 0);
|
|
right = (pit == endPit ? endPos : parSize);
|
|
|
|
// process sequences of modified characters; in change
|
|
// tracking mode, this approach results in much better
|
|
// usability than changing case on a char-by-char basis
|
|
docstring changes;
|
|
|
|
bool capitalize = true;
|
|
|
|
for (; pos < right; ++pos) {
|
|
char_type oldChar = pars_[pit].getChar(pos);
|
|
char_type newChar = oldChar;
|
|
|
|
// ignore insets and don't play with deleted text!
|
|
if (oldChar != Paragraph::META_INSET && !pars_[pit].isDeleted(pos)) {
|
|
switch (action) {
|
|
case text_lowercase:
|
|
newChar = lowercase(oldChar);
|
|
break;
|
|
case text_capitalization:
|
|
if (capitalize) {
|
|
newChar = uppercase(oldChar);
|
|
capitalize = false;
|
|
}
|
|
break;
|
|
case text_uppercase:
|
|
newChar = uppercase(oldChar);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!pars_[pit].isLetter(pos) || pars_[pit].isDeleted(pos)) {
|
|
capitalize = true; // permit capitalization again
|
|
}
|
|
|
|
if (oldChar != newChar) {
|
|
changes += newChar;
|
|
}
|
|
|
|
if (oldChar == newChar || pos == right - 1) {
|
|
if (oldChar != newChar) {
|
|
pos++; // step behind the changing area
|
|
}
|
|
int erasePos = pos - changes.size();
|
|
for (size_t i = 0; i < changes.size(); i++) {
|
|
pars_[pit].insertChar(pos, changes[i],
|
|
pars_[pit].getFontSettings(cur.buffer().params(),
|
|
erasePos),
|
|
trackChanges);
|
|
if (!pars_[pit].eraseChar(erasePos, trackChanges)) {
|
|
++erasePos;
|
|
++pos; // advance
|
|
++right; // expand selection
|
|
}
|
|
}
|
|
changes.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
// the selection may have changed due to logically-only deleted chars
|
|
setCursor(cur, begPit, begPos);
|
|
cur.resetAnchor();
|
|
setCursor(cur, endPit, right);
|
|
cur.setSelection();
|
|
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
|
|
|
|
bool Text::erase(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
bool needsUpdate = false;
|
|
Paragraph & par = cur.paragraph();
|
|
|
|
if (cur.pos() != cur.lastpos()) {
|
|
// this is the code for a normal delete, not pasting
|
|
// any paragraphs
|
|
recordUndo(cur, Undo::DELETE);
|
|
if(!par.eraseChar(cur.pos(), cur.buffer().params().trackChanges)) {
|
|
// the character has been logically deleted only => skip it
|
|
cur.forwardPosNoDescend();
|
|
}
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
needsUpdate = true;
|
|
} else {
|
|
if (cur.pit() == cur.lastpit())
|
|
return dissolveInset(cur);
|
|
|
|
if (!par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
|
|
par.setChange(cur.pos(), Change(Change::DELETED));
|
|
cur.forwardPos();
|
|
needsUpdate = true;
|
|
} else {
|
|
setCursorIntern(cur, cur.pit() + 1, 0);
|
|
needsUpdate = backspacePos0(cur);
|
|
}
|
|
}
|
|
|
|
if (needsUpdate) {
|
|
// Make sure the cursor is correct. Is this really needed?
|
|
// No, not really... at least not here!
|
|
cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
|
|
return needsUpdate;
|
|
}
|
|
|
|
|
|
bool Text::backspacePos0(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
if (cur.pit() == 0)
|
|
return false;
|
|
|
|
bool needsUpdate = false;
|
|
|
|
BufferParams const & bufparams = cur.buffer().params();
|
|
TextClass const & tclass = bufparams.getTextClass();
|
|
ParagraphList & plist = cur.text()->paragraphs();
|
|
Paragraph const & par = cur.paragraph();
|
|
Cursor prevcur = cur;
|
|
--prevcur.pit();
|
|
prevcur.pos() = prevcur.lastpos();
|
|
Paragraph const & prevpar = prevcur.paragraph();
|
|
|
|
// is it an empty paragraph?
|
|
if (cur.lastpos() == 0
|
|
|| (cur.lastpos() == 1 && par.isSeparator(0))) {
|
|
recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
|
|
plist.erase(boost::next(plist.begin(), cur.pit()));
|
|
needsUpdate = true;
|
|
}
|
|
// is previous par empty?
|
|
else if (prevcur.lastpos() == 0
|
|
|| (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
|
|
recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
|
|
plist.erase(boost::next(plist.begin(), prevcur.pit()));
|
|
needsUpdate = true;
|
|
}
|
|
// Pasting is not allowed, if the paragraphs have different
|
|
// layouts. I think it is a real bug of all other
|
|
// word processors to allow it. It confuses the user.
|
|
// Correction: Pasting is always allowed with standard-layout
|
|
else if (par.layout() == prevpar.layout()
|
|
|| par.layout() == tclass.defaultLayout()) {
|
|
recordUndo(cur, Undo::ATOMIC, prevcur.pit());
|
|
mergeParagraph(bufparams, plist, prevcur.pit());
|
|
needsUpdate = true;
|
|
}
|
|
|
|
if (needsUpdate) {
|
|
updateLabels(cur.buffer());
|
|
setCursorIntern(cur, prevcur.pit(), prevcur.pos());
|
|
}
|
|
|
|
return needsUpdate;
|
|
}
|
|
|
|
|
|
bool Text::backspace(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
bool needsUpdate = false;
|
|
if (cur.pos() == 0) {
|
|
if (cur.pit() == 0)
|
|
return dissolveInset(cur);
|
|
|
|
Paragraph & prev_par = pars_[cur.pit() - 1];
|
|
|
|
if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
|
|
prev_par.setChange(prev_par.size(), Change(Change::DELETED));
|
|
setCursorIntern(cur, cur.pit() - 1, prev_par.size());
|
|
return true;
|
|
}
|
|
// The cursor is at the beginning of a paragraph, so
|
|
// the backspace will collapse two paragraphs into one.
|
|
needsUpdate = backspacePos0(cur);
|
|
|
|
} else {
|
|
// this is the code for a normal backspace, not pasting
|
|
// any paragraphs
|
|
recordUndo(cur, Undo::DELETE);
|
|
// We used to do cursorLeftIntern() here, but it is
|
|
// not a good idea since it triggers the auto-delete
|
|
// mechanism. So we do a cursorLeftIntern()-lite,
|
|
// without the dreaded mechanism. (JMarc)
|
|
setCursorIntern(cur, cur.pit(), cur.pos() - 1,
|
|
false, cur.boundary());
|
|
cur.paragraph().eraseChar(cur.pos(), cur.buffer().params().trackChanges);
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
}
|
|
|
|
if (cur.pos() == cur.lastpos())
|
|
setCurrentFont(cur);
|
|
|
|
// A singlePar update is not enough in this case.
|
|
// cur.updateFlags(Update::Force);
|
|
setCursor(cur.top(), cur.pit(), cur.pos());
|
|
|
|
return needsUpdate;
|
|
}
|
|
|
|
|
|
bool Text::dissolveInset(Cursor & cur) {
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
if (isMainText(*cur.bv().buffer()) || cur.inset().nargs() != 1)
|
|
return false;
|
|
|
|
recordUndoInset(cur);
|
|
cur.selHandle(false);
|
|
// save position
|
|
pos_type spos = cur.pos();
|
|
pit_type spit = cur.pit();
|
|
ParagraphList plist;
|
|
if (cur.lastpit() != 0 || cur.lastpos() != 0)
|
|
plist = paragraphs();
|
|
cur.popLeft();
|
|
// store cursor offset
|
|
if (spit == 0)
|
|
spos += cur.pos();
|
|
spit += cur.pit();
|
|
Buffer & b = cur.buffer();
|
|
cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
|
|
if (!plist.empty()) {
|
|
// ERT paragraphs have the Language latex_language.
|
|
// This is invalid outside of ERT, so we need to
|
|
// change it to the buffer language.
|
|
ParagraphList::iterator it = plist.begin();
|
|
ParagraphList::iterator it_end = plist.end();
|
|
for (; it != it_end; it++) {
|
|
it->changeLanguage(b.params(), latex_language,
|
|
b.getLanguage());
|
|
}
|
|
|
|
pasteParagraphList(cur, plist, b.params().textclass,
|
|
b.errorList("Paste"));
|
|
// restore position
|
|
cur.pit() = std::min(cur.lastpit(), spit);
|
|
cur.pos() = std::min(cur.lastpos(), spos);
|
|
}
|
|
cur.clearSelection();
|
|
cur.resetAnchor();
|
|
return true;
|
|
}
|
|
|
|
|
|
// only used for inset right now. should also be used for main text
|
|
void Text::draw(PainterInfo & pi, int x, int y) const
|
|
{
|
|
paintTextInset(*this, pi, x, y);
|
|
}
|
|
|
|
|
|
// only used for inset right now. should also be used for main text
|
|
void Text::drawSelection(PainterInfo & pi, int x, int) const
|
|
{
|
|
Cursor & cur = pi.base.bv->cursor();
|
|
if (!cur.selection())
|
|
return;
|
|
if (!ptr_cmp(cur.text(), this))
|
|
return;
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< "draw selection at " << x
|
|
<< endl;
|
|
|
|
DocIterator beg = cur.selectionBegin();
|
|
DocIterator end = cur.selectionEnd();
|
|
|
|
BufferView & bv = *pi.base.bv;
|
|
Buffer const & buffer = *bv.buffer();
|
|
|
|
// the selection doesn't touch the visible screen
|
|
if (bv_funcs::status(&bv, beg) == bv_funcs::CUR_BELOW
|
|
|| bv_funcs::status(&bv, end) == bv_funcs::CUR_ABOVE)
|
|
return;
|
|
|
|
Paragraph const & par1 = pars_[beg.pit()];
|
|
Paragraph const & par2 = pars_[end.pit()];
|
|
TextMetrics const & tm = bv.textMetrics(this);
|
|
ParagraphMetrics const & pm1 = tm.parMetrics(beg.pit());
|
|
ParagraphMetrics const & pm2 = tm.parMetrics(end.pit());
|
|
|
|
bool const above = (bv_funcs::status(&bv, beg)
|
|
== bv_funcs::CUR_ABOVE);
|
|
bool const below = (bv_funcs::status(&bv, end)
|
|
== bv_funcs::CUR_BELOW);
|
|
int y1,y2,x1,x2;
|
|
if (above) {
|
|
y1 = 0;
|
|
y2 = 0;
|
|
x1 = 0;
|
|
x2 = tm.width();
|
|
} else {
|
|
Row const & row1 = pm1.getRow(beg.pos(), beg.boundary());
|
|
y1 = bv_funcs::getPos(bv, beg, beg.boundary()).y_ - row1.ascent();
|
|
y2 = y1 + row1.height();
|
|
int const startx = cursorX(bv, beg.top(), beg.boundary());
|
|
if (!isRTL(buffer, par1)) {
|
|
x1 = startx;
|
|
x2 = 0 + tm.width();
|
|
}
|
|
else {
|
|
x1 = 0;
|
|
x2 = startx;
|
|
}
|
|
}
|
|
|
|
int Y1,Y2,X1,X2;
|
|
if (below) {
|
|
Y1 = bv.workHeight();
|
|
Y2 = bv.workHeight();
|
|
X1 = 0;
|
|
X2 = tm.width();
|
|
} else {
|
|
Row const & row2 = pm2.getRow(end.pos(), end.boundary());
|
|
Y1 = bv_funcs::getPos(bv, end, end.boundary()).y_ - row2.ascent();
|
|
Y2 = Y1 + row2.height();
|
|
int const endx = cursorX(bv, end.top(), end.boundary());
|
|
if (!isRTL(buffer, par2)) {
|
|
X1 = 0;
|
|
X2 = endx;
|
|
}
|
|
else {
|
|
X1 = endx;
|
|
X2 = 0 + tm.width();
|
|
}
|
|
}
|
|
|
|
if (!above && !below && &pm1.getRow(beg.pos(), beg.boundary())
|
|
== &pm2.getRow(end.pos(), end.boundary()))
|
|
{
|
|
// paint only one rectangle
|
|
int const b( !isRTL(*bv.buffer(), par1) ? x + x1 : x + X1 );
|
|
int const w( !isRTL(*bv.buffer(), par1) ? X2 - x1 : x2 - X1 );
|
|
pi.pain.fillRectangle(b, y1, w, y2 - y1, Color::selection);
|
|
return;
|
|
}
|
|
|
|
LYXERR(Debug::DEBUG) << " y1: " << y1 << " y2: " << y2
|
|
<< "X1:" << X1 << " x2: " << X2 << " wid: " << tm.width()
|
|
<< endl;
|
|
|
|
// paint upper rectangle
|
|
pi.pain.fillRectangle(x + x1, y1, x2 - x1, y2 - y1,
|
|
Color::selection);
|
|
// paint bottom rectangle
|
|
pi.pain.fillRectangle(x + X1, Y1, X2 - X1, Y2 - Y1,
|
|
Color::selection);
|
|
// paint center rectangle
|
|
pi.pain.fillRectangle(x, y2, tm.width(),
|
|
Y1 - y2, Color::selection);
|
|
}
|
|
|
|
|
|
bool Text::isLastRow(pit_type pit, Row const & row) const
|
|
{
|
|
return row.endpos() >= pars_[pit].size()
|
|
&& pit + 1 == pit_type(paragraphs().size());
|
|
}
|
|
|
|
|
|
bool Text::isFirstRow(pit_type pit, Row const & row) const
|
|
{
|
|
return row.pos() == 0 && pit == 0;
|
|
}
|
|
|
|
|
|
void Text::getWord(CursorSlice & from, CursorSlice & to,
|
|
word_location const loc)
|
|
{
|
|
Paragraph const & from_par = pars_[from.pit()];
|
|
switch (loc) {
|
|
case WHOLE_WORD_STRICT:
|
|
if (from.pos() == 0 || from.pos() == from_par.size()
|
|
|| !from_par.isLetter(from.pos())
|
|
|| !from_par.isLetter(from.pos() - 1)) {
|
|
to = from;
|
|
return;
|
|
}
|
|
// no break here, we go to the next
|
|
|
|
case WHOLE_WORD:
|
|
// If we are already at the beginning of a word, do nothing
|
|
if (!from.pos() || !from_par.isLetter(from.pos() - 1))
|
|
break;
|
|
// no break here, we go to the next
|
|
|
|
case PREVIOUS_WORD:
|
|
// always move the cursor to the beginning of previous word
|
|
while (from.pos() && from_par.isLetter(from.pos() - 1))
|
|
--from.pos();
|
|
break;
|
|
case NEXT_WORD:
|
|
lyxerr << "Text::getWord: NEXT_WORD not implemented yet"
|
|
<< endl;
|
|
break;
|
|
case PARTIAL_WORD:
|
|
// no need to move the 'from' cursor
|
|
break;
|
|
}
|
|
to = from;
|
|
Paragraph & to_par = pars_[to.pit()];
|
|
while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
|
|
++to.pos();
|
|
}
|
|
|
|
|
|
void Text::write(Buffer const & buf, std::ostream & os) const
|
|
{
|
|
ParagraphList::const_iterator pit = paragraphs().begin();
|
|
ParagraphList::const_iterator end = paragraphs().end();
|
|
depth_type dth = 0;
|
|
for (; pit != end; ++pit)
|
|
pit->write(buf, os, buf.params(), dth);
|
|
}
|
|
|
|
|
|
bool Text::read(Buffer const & buf, Lexer & lex, ErrorList & errorList)
|
|
{
|
|
depth_type depth = 0;
|
|
|
|
while (lex.isOK()) {
|
|
lex.nextToken();
|
|
string const token = lex.getString();
|
|
|
|
if (token.empty())
|
|
continue;
|
|
|
|
if (token == "\\end_inset")
|
|
break;
|
|
|
|
if (token == "\\end_body")
|
|
continue;
|
|
|
|
if (token == "\\begin_body")
|
|
continue;
|
|
|
|
if (token == "\\end_document")
|
|
return false;
|
|
|
|
if (token == "\\begin_layout") {
|
|
lex.pushToken(token);
|
|
|
|
Paragraph par;
|
|
par.params().depth(depth);
|
|
par.setFont(0, Font(Font::ALL_INHERIT, buf.params().language));
|
|
pars_.push_back(par);
|
|
|
|
// FIXME: goddamn InsetTabular makes us pass a Buffer
|
|
// not BufferParams
|
|
lyx::readParagraph(buf, pars_.back(), lex, errorList);
|
|
|
|
} else if (token == "\\begin_deeper") {
|
|
++depth;
|
|
} else if (token == "\\end_deeper") {
|
|
if (!depth) {
|
|
lex.printError("\\end_deeper: " "depth is already null");
|
|
} else {
|
|
--depth;
|
|
}
|
|
} else {
|
|
lyxerr << "Handling unknown body token: `"
|
|
<< token << '\'' << endl;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
int Text::cursorX(BufferView const & bv, CursorSlice const & sl,
|
|
bool boundary) const
|
|
{
|
|
TextMetrics const & tm = bv.textMetrics(sl.text());
|
|
pit_type const pit = sl.pit();
|
|
Paragraph const & par = pars_[pit];
|
|
ParagraphMetrics const & pm = tm.parMetrics(pit);
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
|
|
pos_type ppos = sl.pos();
|
|
// Correct position in front of big insets
|
|
bool const boundary_correction = ppos != 0 && boundary;
|
|
if (boundary_correction)
|
|
--ppos;
|
|
|
|
Row const & row = pm.getRow(sl.pos(), boundary);
|
|
|
|
pos_type cursor_vpos = 0;
|
|
|
|
Buffer const & buffer = *bv.buffer();
|
|
RowMetrics const m = tm.computeRowMetrics(pit, row);
|
|
double x = m.x;
|
|
|
|
pos_type const row_pos = row.pos();
|
|
pos_type const end = row.endpos();
|
|
|
|
if (end <= row_pos)
|
|
cursor_vpos = row_pos;
|
|
else if (ppos >= end)
|
|
cursor_vpos = isRTL(buffer, par) ? row_pos : end;
|
|
else if (ppos > row_pos && ppos >= end)
|
|
// Place cursor after char at (logical) position pos - 1
|
|
cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
|
|
? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
|
|
else
|
|
// Place cursor before char at (logical) position ppos
|
|
cursor_vpos = (bidi.level(ppos) % 2 == 0)
|
|
? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
|
|
|
|
pos_type body_pos = par.beginOfBody();
|
|
if (body_pos > 0 &&
|
|
(body_pos > end || !par.isLineSeparator(body_pos - 1)))
|
|
body_pos = 0;
|
|
|
|
// Use font span to speed things up, see below
|
|
FontSpan font_span;
|
|
Font font;
|
|
FontMetrics const & labelfm = theFontMetrics(
|
|
getLabelFont(buffer, par));
|
|
|
|
for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
|
|
pos_type pos = bidi.vis2log(vpos);
|
|
if (body_pos > 0 && pos == body_pos - 1) {
|
|
// FIXME UNICODE
|
|
docstring const lsep = from_utf8(par.layout()->labelsep);
|
|
x += m.label_hfill + labelfm.width(lsep);
|
|
if (par.isLineSeparator(body_pos - 1))
|
|
x -= singleWidth(buffer, par, body_pos - 1);
|
|
}
|
|
|
|
// Use font span to speed things up, see above
|
|
if (pos < font_span.first || pos > font_span.last) {
|
|
font_span = par.fontSpan(pos);
|
|
font = getFont(buffer, par, pos);
|
|
}
|
|
|
|
x += singleWidth(par, pos, par.getChar(pos), font);
|
|
|
|
if (par.hfillExpansion(row, pos))
|
|
x += (pos >= body_pos) ? m.hfill : m.label_hfill;
|
|
else if (par.isSeparator(pos) && pos >= body_pos)
|
|
x += m.separator;
|
|
}
|
|
|
|
// see correction above
|
|
if (boundary_correction)
|
|
if (getFont(buffer, par, ppos).isVisibleRightToLeft())
|
|
x -= singleWidth(buffer, par, ppos);
|
|
else
|
|
x += singleWidth(buffer, par, ppos);
|
|
|
|
// Make sure inside an inset we always count from the left
|
|
// edge (bidi!) -- MV
|
|
if (sl.pos() < par.size()) {
|
|
font = getFont(buffer, par, sl.pos());
|
|
if (!boundary && font.isVisibleRightToLeft()
|
|
&& par.isInset(sl.pos()))
|
|
x -= par.getInset(sl.pos())->width();
|
|
}
|
|
return int(x);
|
|
}
|
|
|
|
|
|
int Text::cursorY(BufferView const & bv, CursorSlice const & sl, bool boundary) const
|
|
{
|
|
//lyxerr << "Text::cursorY: boundary: " << boundary << std::endl;
|
|
ParagraphMetrics const & pm = bv.parMetrics(this, sl.pit());
|
|
if (pm.rows().empty())
|
|
return 0;
|
|
|
|
int h = 0;
|
|
h -= bv.parMetrics(this, 0).rows()[0].ascent();
|
|
for (pit_type pit = 0; pit < sl.pit(); ++pit) {
|
|
h += bv.parMetrics(this, pit).height();
|
|
}
|
|
int pos = sl.pos();
|
|
if (pos && boundary)
|
|
--pos;
|
|
size_t const rend = pm.pos2row(pos);
|
|
for (size_t rit = 0; rit != rend; ++rit)
|
|
h += pm.rows()[rit].height();
|
|
h += pm.rows()[rend].ascent();
|
|
return h;
|
|
}
|
|
|
|
|
|
// Returns the current font and depth as a message.
|
|
docstring Text::currentState(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
Buffer & buf = cur.buffer();
|
|
Paragraph const & par = cur.paragraph();
|
|
odocstringstream os;
|
|
|
|
if (buf.params().trackChanges)
|
|
os << _("[Change Tracking] ");
|
|
|
|
Change change = par.lookupChange(cur.pos());
|
|
|
|
if (change.type != Change::UNCHANGED) {
|
|
Author const & a = buf.params().authors().get(change.author);
|
|
os << _("Change: ") << a.name();
|
|
if (!a.email().empty())
|
|
os << " (" << a.email() << ")";
|
|
// FIXME ctime is english, we should translate that
|
|
os << _(" at ") << ctime(&change.changetime);
|
|
os << " : ";
|
|
}
|
|
|
|
// I think we should only show changes from the default
|
|
// font. (Asger)
|
|
// No, from the document font (MV)
|
|
Font font = real_current_font;
|
|
font.reduce(buf.params().getFont());
|
|
|
|
os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
|
|
|
|
// The paragraph depth
|
|
int depth = cur.paragraph().getDepth();
|
|
if (depth > 0)
|
|
os << bformat(_(", Depth: %1$d"), depth);
|
|
|
|
// The paragraph spacing, but only if different from
|
|
// buffer spacing.
|
|
Spacing const & spacing = par.params().spacing();
|
|
if (!spacing.isDefault()) {
|
|
os << _(", Spacing: ");
|
|
switch (spacing.getSpace()) {
|
|
case Spacing::Single:
|
|
os << _("Single");
|
|
break;
|
|
case Spacing::Onehalf:
|
|
os << _("OneHalf");
|
|
break;
|
|
case Spacing::Double:
|
|
os << _("Double");
|
|
break;
|
|
case Spacing::Other:
|
|
os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
|
|
break;
|
|
case Spacing::Default:
|
|
// should never happen, do nothing
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef DEVEL_VERSION
|
|
os << _(", Inset: ") << &cur.inset();
|
|
os << _(", Paragraph: ") << cur.pit();
|
|
os << _(", Id: ") << par.id();
|
|
os << _(", Position: ") << cur.pos();
|
|
// FIXME: Why is the check for par.size() needed?
|
|
// We are called with cur.pos() == par.size() quite often.
|
|
if (!par.empty() && cur.pos() < par.size()) {
|
|
// Force output of code point, not character
|
|
size_t const c = par.getChar(cur.pos());
|
|
os << _(", Char: 0x") << std::hex << c;
|
|
}
|
|
os << _(", Boundary: ") << cur.boundary();
|
|
// Row & row = cur.textRow();
|
|
// os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
|
|
#endif
|
|
return os.str();
|
|
}
|
|
|
|
|
|
docstring Text::getPossibleLabel(Cursor & cur) const
|
|
{
|
|
pit_type pit = cur.pit();
|
|
|
|
Layout_ptr layout = pars_[pit].layout();
|
|
|
|
docstring text;
|
|
docstring par_text = pars_[pit].asString(cur.buffer(), false);
|
|
for (int i = 0; i < lyxrc.label_init_length; ++i) {
|
|
if (par_text.empty())
|
|
break;
|
|
docstring head;
|
|
par_text = split(par_text, head, ' ');
|
|
// Is it legal to use spaces in labels ?
|
|
if (i > 0)
|
|
text += '-';
|
|
text += head;
|
|
}
|
|
|
|
// No need for a prefix if the user said so.
|
|
if (lyxrc.label_init_length <= 0)
|
|
return text;
|
|
|
|
// Will contain the label type.
|
|
docstring name;
|
|
|
|
// For section, subsection, etc...
|
|
if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
|
|
Layout_ptr const & layout2 = pars_[pit - 1].layout();
|
|
if (layout2->latextype != LATEX_PARAGRAPH) {
|
|
--pit;
|
|
layout = layout2;
|
|
}
|
|
}
|
|
if (layout->latextype != LATEX_PARAGRAPH)
|
|
name = from_ascii(layout->latexname());
|
|
|
|
// for captions, we just take the caption type
|
|
Inset * caption_inset = cur.innerInsetOfType(Inset::CAPTION_CODE);
|
|
if (caption_inset)
|
|
name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
|
|
|
|
// If none of the above worked, we'll see if we're inside various
|
|
// types of insets and take our abbreviation from them.
|
|
if (name.empty()) {
|
|
Inset::Code const codes[] = {
|
|
Inset::FLOAT_CODE,
|
|
Inset::WRAP_CODE,
|
|
Inset::FOOT_CODE
|
|
};
|
|
for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
|
|
Inset * float_inset = cur.innerInsetOfType(codes[i]);
|
|
if (float_inset) {
|
|
name = float_inset->name();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create a correct prefix for prettyref
|
|
if (name == "theorem")
|
|
name = from_ascii("thm");
|
|
else if (name == "Foot")
|
|
name = from_ascii("fn");
|
|
|
|
if (!name.empty())
|
|
text = name.substr(0, 3) + ':' + text;
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
void Text::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
pit_type pit = getPitNearY(cur.bv(), y);
|
|
|
|
TextMetrics const & tm = cur.bv().textMetrics(this);
|
|
ParagraphMetrics const & pm = tm.parMetrics(pit);
|
|
|
|
int yy = cur.bv().coordCache().get(this, pit).y_ - pm.ascent();
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": x: " << x
|
|
<< " y: " << y
|
|
<< " pit: " << pit
|
|
<< " yy: " << yy << endl;
|
|
|
|
int r = 0;
|
|
BOOST_ASSERT(pm.rows().size());
|
|
for (; r < int(pm.rows().size()) - 1; ++r) {
|
|
Row const & row = pm.rows()[r];
|
|
if (int(yy + row.height()) > y)
|
|
break;
|
|
yy += row.height();
|
|
}
|
|
|
|
Row const & row = pm.rows()[r];
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": row " << r
|
|
<< " from pos: " << row.pos()
|
|
<< endl;
|
|
|
|
bool bound = false;
|
|
int xx = x;
|
|
pos_type const pos = row.pos()
|
|
+ tm.getColumnNearX(pit, row, xx, bound);
|
|
|
|
LYXERR(Debug::DEBUG)
|
|
<< BOOST_CURRENT_FUNCTION
|
|
<< ": setting cursor pit: " << pit
|
|
<< " pos: " << pos
|
|
<< endl;
|
|
|
|
setCursor(cur, pit, pos, true, bound);
|
|
// remember new position.
|
|
cur.setTargetX();
|
|
}
|
|
|
|
|
|
void Text::charsTranspose(Cursor & cur)
|
|
{
|
|
BOOST_ASSERT(this == cur.text());
|
|
|
|
pos_type pos = cur.pos();
|
|
|
|
// If cursor is at beginning or end of paragraph, do nothing.
|
|
if (pos == cur.lastpos() || pos == 0)
|
|
return;
|
|
|
|
Paragraph & par = cur.paragraph();
|
|
|
|
// Get the positions of the characters to be transposed.
|
|
pos_type pos1 = pos - 1;
|
|
pos_type pos2 = pos;
|
|
|
|
// In change tracking mode, ignore deleted characters.
|
|
while (pos2 < cur.lastpos() && par.isDeleted(pos2))
|
|
++pos2;
|
|
if (pos2 == cur.lastpos())
|
|
return;
|
|
|
|
while (pos1 >= 0 && par.isDeleted(pos1))
|
|
--pos1;
|
|
if (pos1 < 0)
|
|
return;
|
|
|
|
// Don't do anything if one of the "characters" is not regular text.
|
|
if (par.isInset(pos1) || par.isInset(pos2))
|
|
return;
|
|
|
|
// Store the characters to be transposed (including font information).
|
|
char_type char1 = par.getChar(pos1);
|
|
Font const font1 =
|
|
par.getFontSettings(cur.buffer().params(), pos1);
|
|
|
|
char_type char2 = par.getChar(pos2);
|
|
Font const font2 =
|
|
par.getFontSettings(cur.buffer().params(), pos2);
|
|
|
|
// And finally, we are ready to perform the transposition.
|
|
// Track the changes if Change Tracking is enabled.
|
|
bool const trackChanges = cur.buffer().params().trackChanges;
|
|
|
|
recordUndo(cur);
|
|
|
|
par.eraseChar(pos2, trackChanges);
|
|
par.eraseChar(pos1, trackChanges);
|
|
par.insertChar(pos1, char2, font2, trackChanges);
|
|
par.insertChar(pos2, char1, font1, trackChanges);
|
|
|
|
checkBufferStructure(cur.buffer(), cur);
|
|
|
|
// After the transposition, move cursor to after the transposition.
|
|
setCursor(cur, cur.pit(), pos2);
|
|
cur.forwardPos();
|
|
}
|
|
|
|
|
|
} // namespace lyx
|