src/insets/InsetText.cpp

   1 /**
   2  * \file InsetText.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jürgen Vigna
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetText.h"
  14
  15 #include "insets/InsetOptArg.h"
  16
  17 #include "buffer_funcs.h"
  18 #include "Buffer.h"
  19 #include "BufferParams.h"
  20 #include "BufferView.h"
  21 #include "CompletionList.h"
  22 #include "CoordCache.h"
  23 #include "Cursor.h"
  24 #include "CutAndPaste.h"
  25 #include "DispatchResult.h"
  26 #include "ErrorList.h"
  27 #include "FuncRequest.h"
  28 #include "FuncStatus.h"
  29 #include "InsetList.h"
  30 #include "Intl.h"
  31 #include "Lexer.h"
  32 #include "lyxfind.h"
  33 #include "LyXRC.h"
  34 #include "MetricsInfo.h"
  35 #include "output_docbook.h"
  36 #include "output_latex.h"
  37 #include "output_xhtml.h"
  38 #include "OutputParams.h"
  39 #include "output_plaintext.h"
  40 #include "paragraph_funcs.h"
  41 #include "Paragraph.h"
  42 #include "ParagraphParameters.h"
  43 #include "ParIterator.h"
  44 #include "Row.h"
  45 #include "sgml.h"
  46 #include "TexRow.h"
  47 #include "TextClass.h"
  48 #include "Text.h"
  49 #include "TextMetrics.h"
  50 #include "TocBackend.h"
  51
  52 #include "frontends/alert.h"
  53 #include "frontends/Painter.h"
  54
  55 #include "support/debug.h"
  56 #include "support/gettext.h"
  57 #include "support/lstrings.h"
  58
  59 #include <boost/bind.hpp>
  60 #include "support/lassert.h"
  61
  62 using namespace std;
  63 using namespace lyx::support;
  64
  65 using boost::bind;
  66 using boost::ref;
  67
  68 namespace lyx {
  69
  70 using graphics::PreviewLoader;
  71
  72
  73 /////////////////////////////////////////////////////////////////////
  74
  75 InsetText::InsetText(Buffer const & buf, UsePlain type)
  76         : drawFrame_(false), frame_color_(Color_insetframe)
  77 {
  78         setBuffer(const_cast<Buffer &>(buf));
  79         initParagraphs(type);
  80 }
  81
  82
  83 InsetText::InsetText(InsetText const & in)
  84         : Inset(in), text_()
  85 {
  86         text_.autoBreakRows_ = in.text_.autoBreakRows_;
  87         drawFrame_ = in.drawFrame_;
  88         frame_color_ = in.frame_color_;
  89         text_.paragraphs() = in.text_.paragraphs();
  90         setParagraphOwner();
  91 }
  92
  93
  94 void InsetText::setBuffer(Buffer & buf)
  95 {
  96         ParagraphList::iterator end = paragraphs().end();
  97         for (ParagraphList::iterator it = paragraphs().begin(); it != end; ++it)
  98                 it->setBuffer(buf);
  99         Inset::setBuffer(buf);
 100 }
 101
 102
 103 void InsetText::initParagraphs(UsePlain type)
 104 {
 105         LASSERT(paragraphs().empty(), /**/);
 106         paragraphs().push_back(Paragraph());
 107         Paragraph & ourpar = paragraphs().back();
 108         ourpar.setInsetOwner(this);
 109         DocumentClass const & dc = buffer_->params().documentClass();
 110         if (type == DefaultLayout)
 111                 ourpar.setDefaultLayout(dc);
 112         else
 113                 ourpar.setPlainLayout(dc);
 114 }
 115
 116
 117 void InsetText::setParagraphOwner()
 118 {
 119         for_each(paragraphs().begin(), paragraphs().end(),
 120                  bind(&Paragraph::setInsetOwner, _1, this));
 121 }
 122
 123
 124 void InsetText::clear()
 125 {
 126         ParagraphList & pars = paragraphs();
 127         LASSERT(!pars.empty(), /**/);
 128
 129         // This is a gross hack...
 130         Layout const & old_layout = pars.begin()->layout();
 131
 132         pars.clear();
 133         pars.push_back(Paragraph());
 134         pars.begin()->setInsetOwner(this);
 135         pars.begin()->setLayout(old_layout);
 136 }
 137
 138
 139 Dimension const InsetText::dimension(BufferView const & bv) const
 140 {
 141         TextMetrics const & tm = bv.textMetrics(&text_);
 142         Dimension dim = tm.dimension();
 143         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
 144         dim.des += TEXT_TO_INSET_OFFSET;
 145         dim.asc += TEXT_TO_INSET_OFFSET;
 146         return dim;
 147 }
 148
 149
 150 void InsetText::write(ostream & os) const
 151 {
 152         os << "Text\n";
 153         text_.write(buffer(), os);
 154 }
 155
 156
 157 void InsetText::read(Lexer & lex)
 158 {
 159         clear();
 160
 161         // delete the initial paragraph
 162         Paragraph oldpar = *paragraphs().begin();
 163         paragraphs().clear();
 164         ErrorList errorList;
 165         lex.setContext("InsetText::read");
 166         bool res = text_.read(buffer(), lex, errorList, this);
 167
 168         if (!res)
 169                 lex.printError("Missing \\end_inset at this point. ");
 170
 171         // sanity check
 172         // ensure we have at least one paragraph.
 173         if (paragraphs().empty())
 174                 paragraphs().push_back(oldpar);
 175 }
 176
 177
 178 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 179 {
 180         TextMetrics & tm = mi.base.bv->textMetrics(&text_);
 181
 182         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 183
 184         // Hand font through to contained lyxtext:
 185         tm.font_.fontInfo() = mi.base.font;
 186         mi.base.textwidth -= 2 * TEXT_TO_INSET_OFFSET;
 187
 188         // This can happen when a layout has a left and right margin,
 189         // and the view is made very narrow. We can't do better than
 190         // to draw it partly out of view (bug 5890).
 191         if (mi.base.textwidth < 1)
 192                 mi.base.textwidth = 1;
 193
 194         if (hasFixedWidth())
 195                 tm.metrics(mi, dim, mi.base.textwidth);
 196         else
 197                 tm.metrics(mi, dim);
 198         mi.base.textwidth += 2 * TEXT_TO_INSET_OFFSET;
 199         dim.asc += TEXT_TO_INSET_OFFSET;
 200         dim.des += TEXT_TO_INSET_OFFSET;
 201         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
 202 }
 203
 204
 205 void InsetText::draw(PainterInfo & pi, int x, int y) const
 206 {
 207         TextMetrics & tm = pi.base.bv->textMetrics(&text_);
 208
 209         if (drawFrame_ || pi.full_repaint) {
 210                 int const w = tm.width() + TEXT_TO_INSET_OFFSET;
 211                 int const yframe = y - TEXT_TO_INSET_OFFSET - tm.ascent();
 212                 int const h = tm.height() + 2 * TEXT_TO_INSET_OFFSET;
 213                 int const xframe = x + TEXT_TO_INSET_OFFSET / 2;
 214                 if (pi.full_repaint)
 215                         pi.pain.fillRectangle(xframe, yframe, w, h,
 216                                 pi.backgroundColor(this));
 217
 218                 if (drawFrame_)
 219                         pi.pain.rectangle(xframe, yframe, w, h, frameColor());
 220         }
 221         ColorCode const old_color = pi.background_color;
 222         pi.background_color = pi.backgroundColor(this, false);
 223
 224         tm.draw(pi, x + TEXT_TO_INSET_OFFSET, y);
 225
 226         pi.background_color = old_color;
 227 }
 228
 229
 230 docstring InsetText::editMessage() const
 231 {
 232         return _("Opened Text Inset");
 233 }
 234
 235
 236 void InsetText::edit(Cursor & cur, bool front, EntryDirection entry_from)
 237 {
 238         pit_type const pit = front ? 0 : paragraphs().size() - 1;
 239         pos_type pos = front ? 0 : paragraphs().back().size();
 240
 241         // if visual information is not to be ignored, move to extreme right/left
 242         if (entry_from != ENTRY_DIRECTION_IGNORE) {
 243                 Cursor temp_cur = cur;
 244                 temp_cur.pit() = pit;
 245                 temp_cur.pos() = pos;
 246                 temp_cur.posVisToRowExtremity(entry_from == ENTRY_DIRECTION_LEFT);
 247                 pos = temp_cur.pos();
 248         }
 249
 250         text_.setCursor(cur.top(), pit, pos);
 251         cur.clearSelection();
 252         cur.finishUndo();
 253 }
 254
 255
 256 Inset * InsetText::editXY(Cursor & cur, int x, int y)
 257 {
 258         return cur.bv().textMetrics(&text_).editXY(cur, x, y);
 259 }
 260
 261
 262 void InsetText::doDispatch(Cursor & cur, FuncRequest & cmd)
 263 {
 264         LYXERR(Debug::ACTION, "InsetText::doDispatch()"
 265                 << " [ cmd.action = " << cmd.action << ']');
 266
 267         // Dispatch only to text_ if the cursor is inside
 268         // the text_. It is not for context menus (bug 5797).
 269         if (cur.text() == &text_)
 270                 text_.dispatch(cur, cmd);
 271         else
 272                 cur.undispatched();
 273
 274         if (!cur.result().dispatched())
 275                 Inset::doDispatch(cur, cmd);
 276 }
 277
 278
 279 bool InsetText::getStatus(Cursor & cur, FuncRequest const & cmd,
 280         FuncStatus & status) const
 281 {
 282         switch (cmd.action) {
 283         case LFUN_LAYOUT:
 284                 status.setEnabled(!forcePlainLayout());
 285                 return true;
 286
 287         case LFUN_LAYOUT_PARAGRAPH:
 288         case LFUN_PARAGRAPH_PARAMS:
 289         case LFUN_PARAGRAPH_PARAMS_APPLY:
 290         case LFUN_PARAGRAPH_SPACING:
 291         case LFUN_PARAGRAPH_UPDATE:
 292                 status.setEnabled(allowParagraphCustomization());
 293                 return true;
 294         default:
 295                 // Dispatch only to text_ if the cursor is inside
 296                 // the text_. It is not for context menus (bug 5797).
 297                 bool ret = false;
 298                 if (cur.text() == &text_)
 299                         ret = text_.getStatus(cur, cmd, status);
 300
 301                 if (!ret)
 302                         ret = Inset::getStatus(cur, cmd, status);
 303                 return ret;
 304         }
 305 }
 306
 307
 308 void InsetText::setChange(Change const & change)
 309 {
 310         ParagraphList::iterator pit = paragraphs().begin();
 311         ParagraphList::iterator end = paragraphs().end();
 312         for (; pit != end; ++pit) {
 313                 pit->setChange(change);
 314         }
 315 }
 316
 317
 318 void InsetText::acceptChanges(BufferParams const & bparams)
 319 {
 320         text_.acceptChanges(bparams);
 321 }
 322
 323
 324 void InsetText::rejectChanges(BufferParams const & bparams)
 325 {
 326         text_.rejectChanges(bparams);
 327 }
 328
 329
 330 int InsetText::latex(odocstream & os, OutputParams const & runparams) const
 331 {
 332         TexRow texrow;
 333         latexParagraphs(buffer(), text_, os, texrow, runparams);
 334         return texrow.rows();
 335 }
 336
 337
 338 int InsetText::plaintext(odocstream & os, OutputParams const & runparams) const
 339 {
 340         ParagraphList::const_iterator beg = paragraphs().begin();
 341         ParagraphList::const_iterator end = paragraphs().end();
 342         ParagraphList::const_iterator it = beg;
 343         bool ref_printed = false;
 344         int len = 0;
 345         for (; it != end; ++it) {
 346                 if (it != beg) {
 347                         os << '\n';
 348                         if (runparams.linelen > 0)
 349                                 os << '\n';
 350                 }
 351                 odocstringstream oss;
 352                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed);
 353                 docstring const str = oss.str();
 354                 os << str;
 355                 // FIXME: len is not computed fully correctly; in principle,
 356                 // we have to count the characters after the last '\n'
 357                 len = str.size();
 358         }
 359
 360         return len;
 361 }
 362
 363
 364 int InsetText::docbook(odocstream & os, OutputParams const & runparams) const
 365 {
 366         docbookParagraphs(paragraphs(), buffer(), os, runparams);
 367         return 0;
 368 }
 369
 370
 371 void InsetText::xhtml(odocstream & os, OutputParams const & runparams) const
 372 {
 373         xhtmlParagraphs(paragraphs(), buffer(), os, runparams);
 374 }
 375
 376
 377 void InsetText::validate(LaTeXFeatures & features) const
 378 {
 379         for_each(paragraphs().begin(), paragraphs().end(),
 380                  bind(&Paragraph::validate, _1, ref(features)));
 381 }
 382
 383
 384 void InsetText::cursorPos(BufferView const & bv,
 385                 CursorSlice const & sl, bool boundary, int & x, int & y) const
 386 {
 387         x = bv.textMetrics(&text_).cursorX(sl, boundary) + TEXT_TO_INSET_OFFSET;
 388         y = bv.textMetrics(&text_).cursorY(sl, boundary);
 389 }
 390
 391
 392 bool InsetText::showInsetDialog(BufferView *) const
 393 {
 394         return false;
 395 }
 396
 397
 398 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
 399 {
 400         clear();
 401         Paragraph & first = paragraphs().front();
 402         for (unsigned int i = 0; i < data.length(); ++i)
 403                 first.insertChar(i, data[i], font, trackChanges);
 404 }
 405
 406
 407 void InsetText::setAutoBreakRows(bool flag)
 408 {
 409         if (flag == text_.autoBreakRows_)
 410                 return;
 411
 412         text_.autoBreakRows_ = flag;
 413         if (flag)
 414                 return;
 415
 416         // remove previously existing newlines
 417         ParagraphList::iterator it = paragraphs().begin();
 418         ParagraphList::iterator end = paragraphs().end();
 419         for (; it != end; ++it)
 420                 for (int i = 0; i < it->size(); ++i)
 421                         if (it->isNewline(i))
 422                                 // do not track the change, because the user
 423                                 // is not allowed to revert/reject it
 424                                 it->eraseChar(i, false);
 425 }
 426
 427
 428 void InsetText::setDrawFrame(bool flag)
 429 {
 430         drawFrame_ = flag;
 431 }
 432
 433
 434 ColorCode InsetText::frameColor() const
 435 {
 436         return frame_color_;
 437 }
 438
 439
 440 void InsetText::setFrameColor(ColorCode col)
 441 {
 442         frame_color_ = col;
 443 }
 444
 445
 446 void InsetText::appendParagraphs(ParagraphList & plist)
 447 {
 448         // There is little we can do here to keep track of changes.
 449         // As of 2006/10/20, appendParagraphs is used exclusively by
 450         // LyXTabular::setMultiColumn. In this context, the paragraph break
 451         // is lost irreversibly and the appended text doesn't really change
 452
 453         ParagraphList & pl = paragraphs();
 454
 455         ParagraphList::iterator pit = plist.begin();
 456         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
 457         ++pit;
 458         mergeParagraph(buffer().params(), pl,
 459                        distance(pl.begin(), ins) - 1);
 460
 461         for_each(pit, plist.end(),
 462                  bind(&ParagraphList::push_back, ref(pl), _1));
 463 }
 464
 465
 466 void InsetText::addPreview(PreviewLoader & loader) const
 467 {
 468         ParagraphList::const_iterator pit = paragraphs().begin();
 469         ParagraphList::const_iterator pend = paragraphs().end();
 470
 471         for (; pit != pend; ++pit) {
 472                 InsetList::const_iterator it  = pit->insetList().begin();
 473                 InsetList::const_iterator end = pit->insetList().end();
 474                 for (; it != end; ++it)
 475                         it->inset->addPreview(loader);
 476         }
 477 }
 478
 479
 480 ParagraphList const & InsetText::paragraphs() const
 481 {
 482         return text_.paragraphs();
 483 }
 484
 485
 486 ParagraphList & InsetText::paragraphs()
 487 {
 488         return text_.paragraphs();
 489 }
 490
 491
 492 void InsetText::updateLabels(ParIterator const & it)
 493 {
 494         ParIterator it2 = it;
 495         it2.forwardPos();
 496         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
 497         if (producesOutput())
 498                 buffer().updateLabels(it2);
 499         else {
 500                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
 501                 Counters const savecnt = tclass.counters();
 502                 buffer().updateLabels(it2);
 503                 tclass.counters() = savecnt;
 504         }
 505 }
 506
 507
 508 void InsetText::addToToc(DocIterator const & cdit)
 509 {
 510         DocIterator dit = cdit;
 511         dit.push_back(CursorSlice(*this));
 512         Toc & toc = buffer().tocBackend().toc("tableofcontents");
 513
 514         BufferParams const & bufparams = buffer_->params();
 515         const int min_toclevel = bufparams.documentClass().min_toclevel();
 516
 517         // For each paragraph, traverse its insets and let them add
 518         // their toc items
 519         ParagraphList & pars = paragraphs();
 520         pit_type pend = paragraphs().size();
 521         for (pit_type pit = 0; pit != pend; ++pit) {
 522                 Paragraph const & par = pars[pit];
 523                 dit.pit() = pit;
 524                 // the string that goes to the toc (could be the optarg)
 525                 docstring tocstring;
 526                 InsetList::const_iterator it  = par.insetList().begin();
 527                 InsetList::const_iterator end = par.insetList().end();
 528                 for (; it != end; ++it) {
 529                         Inset & inset = *it->inset;
 530                         dit.pos() = it->pos;
 531                         //lyxerr << (void*)&inset << " code: " << inset.lyxCode() << std::endl;
 532                         inset.addToToc(dit);
 533                         switch (inset.lyxCode()) {
 534                         case OPTARG_CODE: {
 535                                 if (!tocstring.empty())
 536                                         break;
 537                                 dit.pos() = 0;
 538                                 Paragraph const & insetpar =
 539                                         *static_cast<InsetOptArg&>(inset).paragraphs().begin();
 540                                 if (!par.labelString().empty())
 541                                         tocstring = par.labelString() + ' ';
 542                                 tocstring += insetpar.asString(AS_STR_INSETS);
 543                                 break;
 544                         }
 545                         default:
 546                                 break;
 547                         }
 548                 }
 549                 // now the toc entry for the paragraph
 550                 int const toclevel = par.layout().toclevel;
 551                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
 552                         dit.pos() = 0;
 553                         // insert this into the table of contents
 554                         if (tocstring.empty())
 555                                 tocstring = par.asString(AS_STR_LABEL | AS_STR_INSETS);
 556                         toc.push_back(TocItem(dit, toclevel - min_toclevel, tocstring));
 557                 }
 558
 559                 // And now the list of changes.
 560                 par.addChangesToToc(dit, buffer());
 561         }
 562 }
 563
 564
 565 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
 566 {
 567         if (buffer().isClean())
 568                 return Inset::notifyCursorLeaves(old, cur);
 569
 570         // find text inset in old cursor
 571         Cursor insetCur = old;
 572         int scriptSlice = insetCur.find(this);
 573         LASSERT(scriptSlice != -1, /**/);
 574         insetCur.cutOff(scriptSlice);
 575         LASSERT(&insetCur.inset() == this, /**/);
 576
 577         // update the old paragraph's words
 578         insetCur.paragraph().updateWords();
 579
 580         return Inset::notifyCursorLeaves(old, cur);
 581 }
 582
 583
 584 bool InsetText::completionSupported(Cursor const & cur) const
 585 {
 586         //LASSERT(&cur.bv().cursor().inset() != this, return false);
 587         return text_.completionSupported(cur);
 588 }
 589
 590
 591 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
 592 {
 593         return completionSupported(cur);
 594 }
 595
 596
 597 bool InsetText::automaticInlineCompletion() const
 598 {
 599         return lyxrc.completion_inline_text;
 600 }
 601
 602
 603 bool InsetText::automaticPopupCompletion() const
 604 {
 605         return lyxrc.completion_popup_text;
 606 }
 607
 608
 609 bool InsetText::showCompletionCursor() const
 610 {
 611         return lyxrc.completion_cursor_text;
 612 }
 613
 614
 615 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
 616 {
 617         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
 618 }
 619
 620
 621 docstring InsetText::completionPrefix(Cursor const & cur) const
 622 {
 623         if (!completionSupported(cur))
 624                 return docstring();
 625         return text_.completionPrefix(cur);
 626 }
 627
 628
 629 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
 630         bool finished)
 631 {
 632         if (!completionSupported(cur))
 633                 return false;
 634
 635         return text_.insertCompletion(cur, s, finished);
 636 }
 637
 638
 639 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y,
 640         Dimension & dim) const
 641 {
 642         TextMetrics const & tm = cur.bv().textMetrics(&text_);
 643         tm.completionPosAndDim(cur, x, y, dim);
 644 }
 645
 646
 647 docstring InsetText::contextMenu(BufferView const &, int, int) const
 648 {
 649         return from_ascii("context-edit");
 650 }
 651
 652
 653 } // namespace lyx