src/insets/InsetInfo.cpp

   1 /**
   2  * \file InsetInfo.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Bo Peng
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10 #include <config.h>
  11
  12 #include "InsetInfo.h"
  13
  14 #include <sstream>
  15 #include <stack>
  16
  17 #include "Buffer.h"
  18 #include "BufferParams.h"
  19 #include "BufferView.h"
  20 #include "FuncRequest.h"
  21 #include "InsetSpecialChar.h"
  22 #include "KeyMap.h"
  23 #include "LaTeXFeatures.h"
  24 #include "LyXAction.h"
  25 #include "LyXRC.h"
  26 #include "Lexer.h"
  27 #include "MenuBackend.h"
  28 #include "MetricsInfo.h"
  29 #include "ParagraphParameters.h"
  30 #include "TextClassList.h"
  31
  32 #include "frontends/Application.h"
  33
  34 #include "support/debug.h"
  35 #include "support/docstream.h"
  36 #include "support/FileName.h"
  37 #include "support/gettext.h"
  38 #include "support/lstrings.h"
  39 #include "support/ExceptionMessage.h"
  40
  41 using namespace std;
  42 using namespace lyx::support;
  43
  44 namespace lyx {
  45
  46
  47 InsetInfo::InsetInfo(BufferParams const & bp, string const & name)
  48         : InsetText(bp), type_(UNKNOWN_INFO), name_(),
  49           mouse_hover_(false)
  50 {
  51         setAutoBreakRows(true);
  52         setDrawFrame(true);
  53         setInfo(name);
  54 }
  55
  56
  57 Inset * InsetInfo::editXY(Cursor &, int, int)
  58 {
  59         return this;
  60 }
  61
  62
  63 void InsetInfo::draw(PainterInfo & pi, int x, int y) const
  64 {
  65         InsetText::draw(pi, x, y);
  66         if (mouse_hover_) {
  67                 odocstringstream os;
  68                 os << _("Information regarding ")
  69                    <<_(nameTranslator().find(type_))
  70                    << _(" ") << from_utf8(name_);
  71                 pi.base.bv->message(os.str());
  72         }
  73 }
  74
  75
  76 namespace {
  77
  78 Translator<InsetInfo::info_type, string> const initTranslator()
  79 {
  80         Translator<InsetInfo::info_type, string>
  81                 translator(InsetInfo::UNKNOWN_INFO, "unknown");
  82
  83         translator.addPair(InsetInfo::SHORTCUT_INFO, "shortcut");
  84         translator.addPair(InsetInfo::LYXRC_INFO, "lyxrc");
  85         translator.addPair(InsetInfo::PACKAGE_INFO, "package");
  86         translator.addPair(InsetInfo::TEXTCLASS_INFO, "textclass");
  87         translator.addPair(InsetInfo::MENU_INFO, "menu");
  88         translator.addPair(InsetInfo::BUFFER_INFO, "buffer");
  89
  90         return translator;
  91 }
  92
  93 } // namespace anon
  94
  95 Translator<InsetInfo::info_type, string>
  96         const & InsetInfo::nameTranslator() const
  97 {
  98         static Translator<info_type, string> const translator = initTranslator();
  99         return translator;
 100 }
 101
 102
 103
 104 void InsetInfo::read(Buffer const & buf, Lexer & lex)
 105 {
 106         string token;
 107         while (lex.isOK()) {
 108                 lex.next();
 109                 token = lex.getString();
 110                 if (token == "type") {
 111                         lex.next();
 112                         token = lex.getString();
 113                         type_ = nameTranslator().find(token);
 114                 } else if (token == "arg") {
 115                         lex.next();
 116                         name_ = lex.getString();
 117                 } else if (token == "\\end_inset")
 118                         break;
 119         }
 120         if (token != "\\end_inset") {
 121                 lex.printError("Missing \\end_inset at this point");
 122                 throw ExceptionMessage(WarningException,
 123                         _("Missing \\end_inset at this point."),
 124                         from_utf8(token));
 125         }
 126         updateInfo(buf);
 127 }
 128
 129
 130 void InsetInfo::write(Buffer const &, ostream & os) const
 131 {
 132         os << "Info\ntype  \"" << nameTranslator().find(type_)
 133            << "\"\narg   \"" << name_ << '\"';
 134 }
 135
 136
 137 void InsetInfo::doDispatch(Cursor & cur, FuncRequest & cmd)
 138 {
 139         // FIXME: we should allow selection, copy etc...
 140         switch (cmd.action) {
 141         case LFUN_MOUSE_PRESS:
 142         case LFUN_MOUSE_RELEASE:
 143         case LFUN_MOUSE_MOTION:
 144         case LFUN_MOUSE_DOUBLE:
 145         case LFUN_MOUSE_TRIPLE:
 146                 // do not dispatch to InsetText
 147                 cur.dispatched();
 148                 break;
 149
 150         default:
 151                 InsetText::doDispatch(cur, cmd);
 152                 break;
 153         }
 154 }
 155
 156
 157 void InsetInfo::setInfo(string const & name)
 158 {
 159         if (name.empty())
 160                 return;
 161         // info_type name
 162         string type;
 163         name_ = trim(split(name, type, ' '));
 164         type_ = nameTranslator().find(type);
 165 }
 166
 167
 168 void InsetInfo::updateInfo(Buffer const & buf)
 169 {
 170         InsetText::clear();
 171
 172         BufferParams const & bp = buf.params();
 173
 174         switch (type_) {
 175         case UNKNOWN_INFO:
 176                 setText(_("Unknown Info: ") + from_utf8(name_),
 177                         bp.getFont(), false);
 178                 break;
 179         case SHORTCUT_INFO: {
 180                 FuncRequest func = lyxaction.lookupFunc(name_);
 181                 if (func.action != LFUN_UNKNOWN_ACTION)
 182                         setText(theTopLevelKeymap().printBindings(func),
 183                                 bp.getFont(), false);
 184                 break;
 185         }
 186         case LYXRC_INFO: {
 187                 ostringstream oss;
 188                 lyxrc.write(oss, true, name_);
 189                 string result = oss.str();
 190                 // remove leading \\name
 191                 result = result.substr(name_.size() + 2);
 192                 // remove \n and ""
 193                 result = rtrim(result, "\n");
 194                 result = trim(result, "\"");
 195                 setText(from_utf8(result), bp.getFont(), false);
 196                 break;
 197         }
 198         case PACKAGE_INFO:
 199                 // check in packages.lst
 200                 setText(LaTeXFeatures::isAvailable(name_) ? _("yes") : _("no"),
 201                         bp.getFont(), false);
 202                 break;
 203         case TEXTCLASS_INFO: {
 204                 // name_ is the class name
 205                 pair<bool, lyx::BaseClassIndex> pp = textclasslist.numberOfClass(name_);
 206                 setText(pp.first ? _("yes") : _("no"),
 207                         bp.getFont(), false);
 208                 break;
 209         }
 210         case MENU_INFO: {
 211                 stack<docstring> names;
 212                 FuncRequest func = lyxaction.lookupFunc(name_);
 213                 if (func.action == LFUN_UNKNOWN_ACTION) {
 214                         setText(_("No menu entry for "), bp.getFont(), false);
 215                         break;
 216                 }
 217                 // iterate through the menubackend to find it
 218                 Menu menu = theApp()->menuBackend().getMenubar();
 219                 if (!menu.searchFunc(func, names)) {
 220                         setText(_("No menu entry for "), bp.getFont(), false);
 221                         break;
 222                 }
 223                 // if find, return its path.
 224                 InsetText::clear();
 225                 Paragraph & info = paragraphs().front();
 226                 unsigned int i = 0;
 227                 while (!names.empty()) {
 228                         // do not insert > for the top level menu item
 229                         if (i != 0)
 230                                 info.insertInset(0, new InsetSpecialChar(InsetSpecialChar::MENU_SEPARATOR),
 231                                         Change(Change::UNCHANGED));
 232                         for (i = 0; i < names.top().length(); ++i)
 233                                 info.insertChar(i, names.top()[i], bp.getFont(), false);
 234                         names.pop();
 235                 }
 236                 break;
 237         }
 238         case BUFFER_INFO: {
 239                 if (name_ == "name")
 240                         setText(from_utf8(buf.fileName().onlyFileName()), bp.getFont(), false);
 241                 else if (name_ == "path")
 242                         setText(from_utf8(buf.filePath()), bp.getFont(), false);
 243                 else if (name_ == "class")
 244                         setText(from_utf8(bp.textClass().name()), bp.getFont(), false);
 245                 else
 246                         setText(_("Unknown buffer info"), bp.getFont(), false);
 247                 break;
 248         }
 249         }
 250         // remove indent
 251         paragraphs().begin()->params().noindent(true);
 252 }
 253
 254
 255 bool InsetInfo::setMouseHover(bool mouse_hover)
 256 {
 257         mouse_hover_ = mouse_hover;
 258         return true;
 259 }
 260
 261 } // namespace lyx