mirror of
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354 lines
9.2 KiB
C++
354 lines
9.2 KiB
C++
/**
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* \file InsetBibitem.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 Alejandro Aguilar Sierra
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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 <algorithm>
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#include "InsetBibitem.h"
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#include "BiblioInfo.h"
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#include "Buffer.h"
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#include "Cursor.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 "Counters.h"
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#include "DispatchResult.h"
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#include "Encoding.h"
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#include "FuncRequest.h"
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#include "InsetIterator.h"
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#include "InsetList.h"
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#include "Language.h"
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#include "Lexer.h"
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#include "output_xhtml.h"
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#include "OutputParams.h"
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#include "Paragraph.h"
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#include "ParagraphList.h"
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#include "ParIterator.h"
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#include "TextClass.h"
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#include "frontends/alert.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/docstream.h"
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#include "support/gettext.h"
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#include "support/lstrings.h"
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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int InsetBibitem::key_counter = 0;
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docstring const key_prefix = from_ascii("key-");
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InsetBibitem::InsetBibitem(Buffer * buf, InsetCommandParams const & p)
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: InsetCommand(buf, p)
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{
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buffer().invalidateBibinfoCache();
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if (getParam("key").empty())
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setParam("key", key_prefix + convert<docstring>(++key_counter));
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}
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InsetBibitem::~InsetBibitem()
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{
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if (isBufferLoaded())
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buffer().invalidateBibinfoCache();
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}
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void InsetBibitem::initView()
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{
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updateCommand(getParam("key"));
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}
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void InsetBibitem::updateCommand(docstring const & new_key, bool)
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{
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docstring key = new_key;
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vector<docstring> bibkeys = buffer().masterBibInfo().getKeys();
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int i = 1;
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if (find(bibkeys.begin(), bibkeys.end(), key) != bibkeys.end()) {
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// generate unique label
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key = new_key + '-' + convert<docstring>(i);
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while (find(bibkeys.begin(), bibkeys.end(), key) != bibkeys.end()) {
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++i;
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key = new_key + '-' + convert<docstring>(i);
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}
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frontend::Alert::warning(_("Keys must be unique!"),
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bformat(_("The key %1$s already exists,\n"
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"it will be changed to %2$s."), new_key, key));
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}
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setParam("key", key);
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buffer().invalidateBibinfoCache();
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}
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ParamInfo const & InsetBibitem::findInfo(string const & /* cmdName */)
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{
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static ParamInfo param_info_;
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if (param_info_.empty()) {
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param_info_.add("label", ParamInfo::LATEX_OPTIONAL,
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ParamInfo::HANDLING_LATEXIFY);
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param_info_.add("key", ParamInfo::LATEX_REQUIRED,
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ParamInfo::HANDLING_ESCAPE);
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}
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return param_info_;
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}
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void InsetBibitem::doDispatch(Cursor & cur, FuncRequest & cmd)
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{
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switch (cmd.action()) {
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case LFUN_INSET_MODIFY: {
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InsetCommandParams p(BIBITEM_CODE);
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InsetCommand::string2params(to_utf8(cmd.argument()), p);
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if (p.getCmdName().empty()) {
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cur.noScreenUpdate();
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break;
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}
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cur.recordUndo();
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docstring const & old_key = params()["key"];
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docstring const & old_label = params()["label"];
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docstring label = p["label"];
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// definitions for escaping
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int previous;
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static docstring const backslash = from_ascii("\\");
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static docstring const lbrace = from_ascii("{");
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static docstring const rbrace = from_ascii("}");
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static char_type const chars_escape[6] = {
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'&', '_', '$', '%', '#', '^'};
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static char_type const brackets_escape[2] = {'[', ']'};
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if (!label.empty()) {
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// The characters in chars_name[] need to be changed to a command when
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// they are in the name field.
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for (int k = 0; k < 6; k++)
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for (size_t i = 0, pos;
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(pos = label.find(chars_escape[k], i)) != string::npos;
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i = pos + 2) {
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if (pos == 0)
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previous = 0;
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else
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previous = pos - 1;
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// only if not already escaped
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if (label[previous] != '\\')
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label.replace(pos, 1, backslash + chars_escape[k] + lbrace + rbrace);
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}
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// The characters '[' and ']' need to be put into braces
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for (int k = 0; k < 2; k++)
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for (size_t i = 0, pos;
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(pos = label.find(brackets_escape[k], i)) != string::npos;
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i = pos + 2) {
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if (pos == 0)
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previous = 0;
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else
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previous = pos - 1;
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// only if not already escaped
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if (label[previous] != '{')
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label.replace(pos, 1, lbrace + brackets_escape[k] + rbrace);
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}
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}
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if (old_label != label) {
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p["label"] = label;
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cur.forceBufferUpdate();
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buffer().invalidateBibinfoCache();
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}
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setParam("label", p["label"]);
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if (p["key"] != old_key) {
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updateCommand(p["key"]);
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cur.bv().buffer().changeRefsIfUnique(old_key,
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params()["key"], CITE_CODE);
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cur.forceBufferUpdate();
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buffer().invalidateBibinfoCache();
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}
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break;
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}
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default:
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InsetCommand::doDispatch(cur, cmd);
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break;
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}
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}
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void InsetBibitem::read(Lexer & lex)
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{
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InsetCommand::read(lex);
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if (prefixIs(getParam("key"), key_prefix)) {
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int const key = convert<int>(getParam("key").substr(key_prefix.length()));
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key_counter = max(key_counter, key);
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}
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}
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docstring InsetBibitem::bibLabel() const
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{
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docstring const & label = getParam("label");
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return label.empty() ? autolabel_ : label;
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}
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docstring InsetBibitem::screenLabel() const
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{
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return getParam("key") + " [" + bibLabel() + ']';
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}
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int InsetBibitem::plaintext(odocstream & os, OutputParams const &) const
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{
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odocstringstream oss;
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oss << '[' << bibLabel() << "] ";
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docstring const str = oss.str();
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os << str;
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return str.size();
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}
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// ale070405
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docstring bibitemWidest(Buffer const & buffer, OutputParams const & runparams)
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{
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int w = 0;
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InsetBibitem const * bitem = 0;
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// FIXME: this font is used unitialized for now but should be set to
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// a proportional font. Here is what Georg Baum has to say about it:
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/*
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bibitemWidest() is supposed to find the bibitem with the widest label in the
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output, because that is needed as an argument of the bibliography
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environment to determine the correct indentation. To be 100% correct we
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would need the metrics of the font that is used in the output, but usually
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we don't have access to these.
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In practice, any proportional font is probably good enough, since we don't
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need to know the final with, we only need to know the which label is the
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widest.
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Unless there is an easy way to get the metrics of the output font I suggest
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to use a hardcoded font like "Times" or so.
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It is very important that the result of this function is the same both with
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and without GUI. After thinking about this it is clear that no Font
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metrics should be used here, since these come from the gui. If we can't
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easily get the LaTeX font metrics we should make our own poor mans font
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metrics replacement, e.g. by hardcoding the metrics of the standard TeX
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font.
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*/
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docstring lbl;
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ParagraphList::const_iterator it = buffer.paragraphs().begin();
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ParagraphList::const_iterator end = buffer.paragraphs().end();
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for (; it != end; ++it) {
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if (it->insetList().empty())
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continue;
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Inset * inset = it->insetList().begin()->inset;
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if (inset->lyxCode() != BIBITEM_CODE)
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continue;
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bitem = static_cast<InsetBibitem const *>(inset);
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docstring const label = bitem->bibLabel();
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// FIXME: we can't be sure using the following that the GUI
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// version and the command-line version will give the same
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// result.
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//
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//int const wx = use_gui?
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// theFontMetrics(font).width(label): label.size();
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//
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// So for now we just use the label size in order to be sure
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// that GUI and no-GUI gives the same bibitem (even if that is
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// potentially the wrong one.
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int const wx = label.size();
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if (wx > w) {
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w = wx;
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lbl = label;
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}
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}
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if (!lbl.empty()) {
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pair<docstring, docstring> latex_lbl =
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runparams.encoding->latexString(lbl, runparams.dryrun);
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return latex_lbl.first;
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}
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return from_ascii("99");
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}
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void InsetBibitem::collectBibKeys(InsetIterator const & it) const
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{
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docstring const key = getParam("key");
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docstring const label = getParam("label");
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BibTeXInfo keyvalmap(false);
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keyvalmap.key(key);
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keyvalmap.label(label);
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DocIterator doc_it(it);
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doc_it.forwardPos();
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keyvalmap[from_ascii("ref")] = doc_it.paragraph().asString(
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AS_STR_INSETS | AS_STR_SKIPDELETE);
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buffer().addBibTeXInfo(key, keyvalmap);
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}
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// Update the counters of this inset and of its contents
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void InsetBibitem::updateBuffer(ParIterator const & it, UpdateType utype)
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{
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BufferParams const & bp = buffer().masterBuffer()->params();
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Counters & counters = bp.documentClass().counters();
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docstring const bibitem = from_ascii("bibitem");
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if (getParam("label").empty()) {
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if (counters.hasCounter(bibitem))
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counters.step(bibitem, utype);
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string const & lang = it.paragraph().getParLanguage(bp)->code();
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autolabel_ = counters.theCounter(bibitem, lang);
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} else {
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autolabel_ = from_ascii("??");
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}
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}
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docstring InsetBibitem::xhtml(XHTMLStream & xs, OutputParams const &) const
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{
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// FIXME XHTML
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// XHTML 1.1 doesn't have the "name" attribute for <a>, so we have to use
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// the "id" atttribute to get the document to validate. Probably, we will
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// need to use "name" anyway, eventually, because some browsers do not
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// handle jumping to ids. If we don't do that, though, we can just put the
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// id into the span tag.
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string const attrs =
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"id='LyXCite-" + to_utf8(html::cleanAttr(getParam("key"))) + "'";
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xs << html::CompTag("a", attrs);
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xs << html::StartTag("span", "class='bibitemlabel'");
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xs << bibLabel();
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xs << html::EndTag("span");
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return docstring();
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}
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} // namespace lyx
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