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https://git.lyx.org/repos/lyx.git
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de15c267e3
* Use the isRTL information to compute the cursor position correctly around insets in RTL text. Those insets are positioned to the right of the cursor position in the text. (fixes issue (3) of bug 3551: Cursor movement in and around insets in RTL paragraphs) git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18667 a592a061-630c-0410-9148-cb99ea01b6c8
1988 lines
54 KiB
C++
1988 lines
54 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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language->lang() == "farsi") {
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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
|
|
// theorems (JMarc)
|
|
|| (layout->labeltype == LABEL_STATIC
|
|
&& layout->latextype == LATEX_ENVIRONMENT
|
|
&& !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::handleBibitems(Cursor & cur)
|
|
{
|
|
if (cur.paragraph().layout()->labeltype != LABEL_BIBLIO)
|
|
return false;
|
|
// if a bibitem is deleted, merge with previous paragraph
|
|
// if this is a bibliography item as well
|
|
if (cur.pos() == 0) {
|
|
BufferParams const & bufparams = cur.buffer().params();
|
|
Paragraph const & par = cur.paragraph();
|
|
Cursor prevcur = cur;
|
|
if (cur.pit() > 0) {
|
|
--prevcur.pit();
|
|
prevcur.pos() = prevcur.lastpos();
|
|
}
|
|
Paragraph const & prevpar = prevcur.paragraph();
|
|
if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
|
|
recordUndo(cur, Undo::ATOMIC, prevcur.pit());
|
|
mergeParagraph(bufparams, cur.text()->paragraphs(),
|
|
prevcur.pit());
|
|
updateLabels(cur.buffer());
|
|
setCursorIntern(cur, prevcur.pit(), prevcur.pos());
|
|
cur.updateFlags(Update::Force);
|
|
// if not, reset the paragraph to default
|
|
} else
|
|
cur.paragraph().layout(
|
|
bufparams.getTextClass().defaultLayout());
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
needsUpdate |= handleBibitems(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);
|
|
|
|
needsUpdate |= handleBibitems(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 (isRTL(buffer, sl, boundary))
|
|
x -= singleWidth(buffer, par, ppos);
|
|
else
|
|
x += singleWidth(buffer, par, ppos);
|
|
}
|
|
|
|
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");
|
|
else if (name == "listing")
|
|
name = from_ascii("lst");
|
|
|
|
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
|