src/insets/insettext.C

   1 /**
   2  * \file insettext.C
   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 #include "insetnewline.h"
  15
  16 #include "buffer.h"
  17 #include "bufferparams.h"
  18 #include "BufferView.h"
  19 #include "CutAndPaste.h"
  20 #include "cursor.h"
  21 #include "debug.h"
  22 #include "dispatchresult.h"
  23 #include "errorlist.h"
  24 #include "funcrequest.h"
  25 #include "gettext.h"
  26 #include "intl.h"
  27 #include "LColor.h"
  28 #include "lyxfind.h"
  29 #include "lyxlex.h"
  30 #include "lyxrc.h"
  31 #include "lyxtext.h"
  32 #include "metricsinfo.h"
  33 #include "output_docbook.h"
  34 #include "output_latex.h"
  35 #include "output_linuxdoc.h"
  36 #include "output_plaintext.h"
  37 #include "paragraph.h"
  38 #include "paragraph_funcs.h"
  39 #include "ParagraphParameters.h"
  40 #include "rowpainter.h"
  41 #include "lyxrow.h"
  42 #include "sgml.h"
  43 #include "texrow.h"
  44 #include "undo.h"
  45
  46 #include "frontends/Alert.h"
  47 #include "frontends/font_metrics.h"
  48 #include "frontends/LyXView.h"
  49 #include "frontends/Painter.h"
  50
  51 #include "support/lyxalgo.h" // lyx::count
  52
  53 #include <boost/bind.hpp>
  54
  55 using lyx::pos_type;
  56
  57 using lyx::graphics::PreviewLoader;
  58
  59 using lyx::support::isStrUnsignedInt;
  60 using lyx::support::strToUnsignedInt;
  61
  62 using std::endl;
  63 using std::for_each;
  64 using std::max;
  65 using std::string;
  66 using std::auto_ptr;
  67 using std::ostream;
  68 using std::vector;
  69
  70
  71 InsetText::InsetText(BufferParams const & bp)
  72         : autoBreakRows_(false), drawFrame_(NEVER),
  73           frame_color_(LColor::insetframe), text_(0)
  74 {
  75         paragraphs().push_back(Paragraph());
  76         paragraphs().back().layout(bp.getLyXTextClass().defaultLayout());
  77         if (bp.tracking_changes)
  78                 paragraphs().back().trackChanges();
  79         init();
  80 }
  81
  82
  83 InsetText::InsetText(InsetText const & in)
  84         : UpdatableInset(in), text_(in.text_.bv_owner)
  85 {
  86         // this is ugly...
  87         operator=(in);
  88 }
  89
  90
  91 InsetText::InsetText() : text_(0)
  92 {}
  93
  94
  95 void InsetText::operator=(InsetText const & in)
  96 {
  97         UpdatableInset::operator=(in);
  98         autoBreakRows_ = in.autoBreakRows_;
  99         drawFrame_ = in.drawFrame_;
 100         frame_color_ = in.frame_color_;
 101         text_ = LyXText(in.text_.bv_owner);
 102         text_.paragraphs() = in.text_.paragraphs();
 103         init();
 104 }
 105
 106
 107 void InsetText::init()
 108 {
 109         ParagraphList::iterator pit = paragraphs().begin();
 110         ParagraphList::iterator end = paragraphs().end();
 111         for (; pit != end; ++pit)
 112                 pit->setInsetOwner(this);
 113         old_par = -1;
 114 }
 115
 116
 117 void InsetText::clear(bool just_mark_erased)
 118 {
 119         ParagraphList & pars = paragraphs();
 120         if (just_mark_erased) {
 121                 ParagraphList::iterator it = pars.begin();
 122                 ParagraphList::iterator end = pars.end();
 123                 for (; it != end; ++it)
 124                         it->markErased();
 125                 return;
 126         }
 127
 128         // This is a gross hack...
 129         LyXLayout_ptr old_layout = pars.begin()->layout();
 130
 131         pars.clear();
 132         pars.push_back(Paragraph());
 133         pars.begin()->setInsetOwner(this);
 134         pars.begin()->layout(old_layout);
 135 }
 136
 137
 138 auto_ptr<InsetBase> InsetText::clone() const
 139 {
 140         return auto_ptr<InsetBase>(new InsetText(*this));
 141 }
 142
 143
 144 void InsetText::write(Buffer const & buf, ostream & os) const
 145 {
 146         os << "Text\n";
 147         text_.write(buf, os);
 148 }
 149
 150
 151 void InsetText::read(Buffer const & buf, LyXLex & lex)
 152 {
 153         clear(false);
 154
 155 #warning John, look here. Doesnt make much sense.
 156         if (buf.params().tracking_changes)
 157                 paragraphs().begin()->trackChanges();
 158
 159         // delete the initial paragraph
 160         Paragraph oldpar = *paragraphs().begin();
 161         paragraphs().clear();
 162         bool res = text_.read(buf, lex);
 163         init();
 164
 165         if (!res) {
 166                 lex.printError("Missing \\end_inset at this point. "
 167                                            "Read: `$$Token'");
 168         }
 169
 170         // sanity check
 171         // ensure we have at least one par.
 172         if (paragraphs().empty())
 173                 paragraphs().push_back(oldpar);
 174 }
 175
 176
 177 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 178 {
 179         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 180         setViewCache(mi.base.bv);
 181         text_.metrics(mi, dim);
 182         dim_ = dim;
 183         font_ = mi.base.font;
 184         text_.font_ = mi.base.font;
 185 }
 186
 187
 188 void InsetText::draw(PainterInfo & pi, int x, int y) const
 189 {
 190         BOOST_ASSERT(!text_.paragraphs().begin()->rows.empty());
 191         // update our idea of where we are
 192         setPosCache(pi, x, y);
 193
 194         BufferView * bv = pi.base.bv;
 195         bv->hideCursor();
 196
 197         x += scroll();
 198         y -= text_.ascent();
 199
 200         // repaint the background if needed
 201         if (backgroundColor() != LColor::background)
 202                 clearInset(pi.pain, x, y);
 203
 204         text_.draw(pi, x, y + bv->top_y());
 205
 206         if (drawFrame_ == ALWAYS || drawFrame_ == LOCKED)
 207                 drawFrame(pi.pain, x, y);
 208 }
 209
 210
 211 void InsetText::drawSelection(PainterInfo & pi, int x, int y) const
 212 {
 213         text_.drawSelection(pi, x, y);
 214 }
 215
 216
 217 void InsetText::drawFrame(Painter & pain, int x, int y) const
 218 {
 219         int const w = text_.width();
 220         int const h = text_.height();
 221         pain.rectangle(x, y, w, h, frameColor());
 222 }
 223
 224
 225 void InsetText::clearInset(Painter & pain, int x, int y) const
 226 {
 227         int const w = text_.width();
 228         int const h = text_.height();
 229         pain.fillRectangle(x, y, w, h, backgroundColor());
 230 }
 231
 232
 233 void InsetText::updateLocal(LCursor & cur)
 234 {
 235         if (!autoBreakRows_ && paragraphs().size() > 1) {
 236                 // collapseParagraphs
 237                 while (paragraphs().size() > 1) {
 238                         ParagraphList::iterator const first = paragraphs().begin();
 239                         ParagraphList::iterator second = first;
 240                         ++second;
 241                         size_t const first_par_size = first->size();
 242
 243                         if (!first->empty() &&
 244                                         !second->empty() &&
 245                                         !first->isSeparator(first_par_size - 1)) {
 246                                 first->insertChar(first_par_size, ' ');
 247                         }
 248
 249                         cur.clearSelection();
 250                         mergeParagraph(cur.bv().buffer()->params(), paragraphs(), 0);
 251                 }
 252         }
 253
 254         if (!cur.selection())
 255                 cur.resetAnchor();
 256
 257         LyXView * lv = cur.bv().owner();
 258         lv->view_state_changed();
 259         lv->updateMenubar();
 260         lv->updateToolbar();
 261         if (old_par != cur.par()) {
 262                 lv->setLayout(text_.getPar(cur.par()).layout()->name());
 263                 old_par = cur.par();
 264         }
 265 }
 266
 267
 268 string const InsetText::editMessage() const
 269 {
 270         return _("Opened Text Inset");
 271 }
 272
 273
 274 void InsetText::sanitizeEmptyText(BufferView & bv)
 275 {
 276         if (paragraphs().size() == 1
 277             && paragraphs().begin()->empty()
 278             && bv.getParentLanguage(this) != text_.current_font.language()) {
 279                 LyXFont font(LyXFont::ALL_IGNORE);
 280                 font.setLanguage(bv.getParentLanguage(this));
 281                 text_.setFont(bv.cursor(), font, false);
 282         }
 283 }
 284
 285
 286 void InsetText::edit(LCursor & cur, bool left)
 287 {
 288         //lyxerr << "InsetText: edit left/right" << endl;
 289         old_par = -1;
 290         setViewCache(&cur.bv());
 291         int const par = left ? 0 : paragraphs().size() - 1;
 292         int const pos = left ? 0 : paragraphs().back().size();
 293         text_.setCursor(cur.top(), par, pos);
 294         cur.clearSelection();
 295         finishUndo();
 296         sanitizeEmptyText(cur.bv());
 297         updateLocal(cur);
 298 }
 299
 300
 301 InsetBase * InsetText::editXY(LCursor & cur, int x, int y)
 302 {
 303         lyxerr << "InsetText::edit xy" << endl;
 304         old_par = -1;
 305         return text_.editXY(cur, x, y);
 306         //sanitizeEmptyText(cur.bv());
 307         //updateLocal(cur);
 308 }
 309
 310
 311 void InsetText::priv_dispatch(LCursor & cur, FuncRequest & cmd)
 312 {
 313         //lyxerr << "InsetText::priv_dispatch: " << cmd.action << " " << endl;
 314         setViewCache(&cur.bv());
 315
 316         bool was_empty = paragraphs().begin()->empty() && paragraphs().size() == 1;
 317         text_.dispatch(cur, cmd);
 318
 319         // If the action has deleted all text in the inset, we need
 320         // to change the language to the language of the surronding
 321         // text.
 322         // Why this cleverness? (Andre')
 323         if (!was_empty && paragraphs().begin()->empty() &&
 324             paragraphs().size() == 1) {
 325                 LyXFont font(LyXFont::ALL_IGNORE);
 326                 font.setLanguage(cur.bv().getParentLanguage(this));
 327                 text_.setFont(cur, font, false);
 328         }
 329 }
 330
 331
 332 bool InsetText::getStatus(LCursor & cur, FuncRequest const & cmd,
 333         FuncStatus & status) const
 334 {
 335         return text_.getStatus(cur, cmd, status);
 336 }
 337
 338
 339 int InsetText::latex(Buffer const & buf, ostream & os,
 340                      OutputParams const & runparams) const
 341 {
 342         TexRow texrow;
 343         latexParagraphs(buf, paragraphs(), os, texrow, runparams);
 344         return texrow.rows();
 345 }
 346
 347
 348 int InsetText::plaintext(Buffer const & buf, ostream & os,
 349                      OutputParams const & runparams) const
 350 {
 351         ParagraphList::const_iterator beg = paragraphs().begin();
 352         ParagraphList::const_iterator end = paragraphs().end();
 353         ParagraphList::const_iterator it = beg;
 354         for (; it != end; ++it)
 355                 asciiParagraph(buf, *it, os, runparams, it == beg);
 356
 357         //FIXME: Give the total numbers of lines
 358         return 0;
 359 }
 360
 361
 362 int InsetText::linuxdoc(Buffer const & buf, ostream & os,
 363                         OutputParams const & runparams) const
 364 {
 365         linuxdocParagraphs(buf, paragraphs(), os, runparams);
 366         return 0;
 367 }
 368
 369
 370 int InsetText::docbook(Buffer const & buf, ostream & os,
 371                        OutputParams const & runparams) const
 372 {
 373         docbookParagraphs(buf, paragraphs(), os, runparams);
 374         return 0;
 375 }
 376
 377
 378 void InsetText::validate(LaTeXFeatures & features) const
 379 {
 380         for_each(paragraphs().begin(), paragraphs().end(),
 381                  boost::bind(&Paragraph::validate, _1, boost::ref(features)));
 382 }
 383
 384
 385 void InsetText::getCursorPos(CursorSlice const & cur, int & x, int & y) const
 386 {
 387         x = text_.cursorX(cur);
 388         y = text_.cursorY(cur);
 389 }
 390
 391
 392 bool InsetText::showInsetDialog(BufferView *) const
 393 {
 394         return false;
 395 }
 396
 397
 398 void InsetText::getLabelList(Buffer const & buffer,
 399                              std::vector<string> & list) const
 400 {
 401         ParagraphList::const_iterator pit = paragraphs().begin();
 402         ParagraphList::const_iterator pend = paragraphs().end();
 403         for (; pit != pend; ++pit) {
 404                 InsetList::const_iterator beg = pit->insetlist.begin();
 405                 InsetList::const_iterator end = pit->insetlist.end();
 406                 for (; beg != end; ++beg)
 407                         beg->inset->getLabelList(buffer, list);
 408         }
 409 }
 410
 411
 412 void InsetText::markNew(bool track_changes)
 413 {
 414         ParagraphList::iterator pit = paragraphs().begin();
 415         ParagraphList::iterator end = paragraphs().end();
 416         for (; pit != end; ++pit) {
 417                 if (track_changes) {
 418                         pit->trackChanges();
 419                 } else {
 420                         // no-op when not tracking
 421                         pit->cleanChanges();
 422                 }
 423         }
 424 }
 425
 426
 427 void InsetText::setText(string const & data, LyXFont const & font)
 428 {
 429         clear(false);
 430         for (unsigned int i = 0; i < data.length(); ++i)
 431                 paragraphs().begin()->insertChar(i, data[i], font);
 432 }
 433
 434
 435 void InsetText::setAutoBreakRows(bool flag)
 436 {
 437         if (flag != autoBreakRows_) {
 438                 autoBreakRows_ = flag;
 439                 if (!flag)
 440                         removeNewlines();
 441         }
 442 }
 443
 444
 445 void InsetText::setDrawFrame(DrawFrame how)
 446 {
 447         drawFrame_ = how;
 448 }
 449
 450
 451 LColor_color InsetText::frameColor() const
 452 {
 453         return LColor::color(frame_color_);
 454 }
 455
 456
 457 void InsetText::setFrameColor(LColor_color col)
 458 {
 459         frame_color_ = col;
 460 }
 461
 462
 463 void InsetText::setViewCache(BufferView const * bv) const
 464 {
 465         if (bv && bv != text_.bv_owner) {
 466                 //lyxerr << "setting view cache from "
 467                 //      << text_.bv_owner << " to " << bv << "\n";
 468                 text_.bv_owner = const_cast<BufferView *>(bv);
 469         }
 470 }
 471
 472
 473 void InsetText::removeNewlines()
 474 {
 475         ParagraphList::iterator it = paragraphs().begin();
 476         ParagraphList::iterator end = paragraphs().end();
 477         for (; it != end; ++it)
 478                 for (int i = 0; i < it->size(); ++i)
 479                         if (it->isNewline(i))
 480                                 it->erase(i);
 481 }
 482
 483
 484 LyXText * InsetText::getText(int i) const
 485 {
 486         return (i == 0) ? const_cast<LyXText*>(&text_) : 0;
 487 }
 488
 489
 490 void InsetText::appendParagraphs(Buffer * buffer, ParagraphList & plist)
 491 {
 492 #warning FIXME Check if Changes stuff needs changing here. (Lgb)
 493 // And it probably does. You have to take a look at this John. (Lgb)
 494 #warning John, have a look here. (Lgb)
 495         ParagraphList::iterator pit = plist.begin();
 496         ParagraphList::iterator ins = paragraphs().insert(paragraphs().end(), *pit);
 497         ++pit;
 498         mergeParagraph(buffer->params(), paragraphs(),
 499                 ins - paragraphs().begin() - 1);
 500
 501         ParagraphList::iterator pend = plist.end();
 502         for (; pit != pend; ++pit)
 503                 paragraphs().push_back(*pit);
 504 }
 505
 506
 507 void InsetText::addPreview(PreviewLoader & loader) const
 508 {
 509         ParagraphList::const_iterator pit = paragraphs().begin();
 510         ParagraphList::const_iterator pend = paragraphs().end();
 511
 512         for (; pit != pend; ++pit) {
 513                 InsetList::const_iterator it  = pit->insetlist.begin();
 514                 InsetList::const_iterator end = pit->insetlist.end();
 515                 for (; it != end; ++it)
 516                         it->inset->addPreview(loader);
 517         }
 518 }
 519
 520
 521 ParagraphList const & InsetText::paragraphs() const
 522 {
 523         return text_.paragraphs();
 524 }
 525
 526
 527 ParagraphList & InsetText::paragraphs()
 528 {
 529         return text_.paragraphs();
 530 }