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