src/insets/insetlabel.C

   1 /**
   2  * \file insetlabel.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "insetlabel.h"
  14
  15 #include "buffer.h"
  16 #include "BufferView.h"
  17 #include "dispatchresult.h"
  18 #include "funcrequest.h"
  19 #include "InsetList.h"
  20 #include "lyxtext.h"
  21 #include "paragraph.h"
  22 #include "pariterator.h"
  23 #include "sgml.h"
  24
  25 #include "frontends/LyXView.h"
  26
  27 #include "support/lstrings.h"
  28 #include "support/lyxalgo.h"
  29 #include "support/std_ostream.h"
  30
  31 using lyx::support::escape;
  32
  33 using std::string;
  34 using std::ostream;
  35 using std::vector;
  36
  37
  38 InsetLabel::InsetLabel(InsetCommandParams const & p)
  39         : InsetCommand(p, "label")
  40 {}
  41
  42
  43 std::auto_ptr<InsetBase> InsetLabel::doClone() const
  44 {
  45         return std::auto_ptr<InsetBase>(new InsetLabel(params()));
  46 }
  47
  48
  49 void InsetLabel::getLabelList(Buffer const &, std::vector<string> & list) const
  50 {
  51         list.push_back(getContents());
  52 }
  53
  54
  55 string const InsetLabel::getScreenLabel(Buffer const &) const
  56 {
  57         return getContents();
  58 }
  59
  60
  61 namespace {
  62
  63 void changeRefsIfUnique(BufferView & bv, string const & from, string const & to)
  64 {
  65         // Check if the label 'from' appears more than once
  66         vector<string> labels;
  67         bv.buffer()->getLabelList(labels);
  68
  69         if (lyx::count(labels.begin(), labels.end(), from) > 1)
  70                 return;
  71
  72         InsetBase::Code code = InsetBase::REF_CODE;
  73
  74         ParIterator it = bv.buffer()->par_iterator_begin();
  75         ParIterator end = bv.buffer()->par_iterator_end();
  76         for ( ; it != end; ++it) {
  77                 for (InsetList::iterator it2 = it->insetlist.begin();
  78                      it2 != it->insetlist.end(); ++it2) {
  79                         if (it2->inset->lyxCode() == code) {
  80                                 InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
  81                                 if (inset->getContents() == from) {
  82                                         inset->setContents(to);
  83                                 }
  84                         }
  85                 }
  86         }
  87 }
  88
  89 } // namespace anon
  90
  91
  92 void InsetLabel::doDispatch(LCursor & cur, FuncRequest & cmd)
  93 {
  94         switch (cmd.action) {
  95
  96         case LFUN_INSET_MODIFY: {
  97                 InsetCommandParams p;
  98                 InsetCommandMailer::string2params("label", cmd.argument, p);
  99                 if (p.getCmdName().empty()) {
 100                         cur.noUpdate();
 101                         break;
 102                 }
 103                 if (p.getContents() != params().getContents())
 104                         changeRefsIfUnique(cur.bv(), params().getContents(),
 105                                                        p.getContents());
 106                 setParams(p);
 107                 break;
 108         }
 109
 110         default:
 111                 InsetCommand::doDispatch(cur, cmd);
 112                 break;
 113         }
 114 }
 115
 116
 117 int InsetLabel::latex(Buffer const &, ostream & os,
 118                       OutputParams const &) const
 119 {
 120         os << escape(getCommand());
 121         return 0;
 122 }
 123
 124
 125 int InsetLabel::plaintext(Buffer const &, ostream & os,
 126                       OutputParams const &) const
 127 {
 128         os << '<' << getContents()  << '>';
 129         return 0;
 130 }
 131
 132
 133 int InsetLabel::linuxdoc(Buffer const & buf, ostream & os,
 134                          OutputParams const & runparams) const
 135 {
 136         os << "<label id=\"" << sgml::cleanID(buf, runparams, getContents()) << "\" >";
 137         return 0;
 138 }
 139
 140
 141 int InsetLabel::docbook(Buffer const & buf, ostream & os,
 142                         OutputParams const & runparams) const
 143 {
 144         os << "<!-- anchor id=\"" << sgml::cleanID(buf, runparams, getContents()) << "\" -->";
 145         return 0;
 146 }