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_plaintext.h"
  36 #include "paragraph.h"
  37 #include "paragraph_funcs.h"
  38 #include "ParagraphParameters.h"
  39 #include "rowpainter.h"
  40 #include "lyxrow.h"
  41 #include "sgml.h"
  42 #include "texrow.h"
  43 #include "undo.h"
  44
  45 #include "frontends/Alert.h"
  46 #include "frontends/font_metrics.h"
  47 #include "frontends/Painter.h"
  48
  49 #include "support/lyxalgo.h" // lyx::count
  50
  51 #include <boost/bind.hpp>
  52 #include <boost/current_function.hpp>
  53
  54 using lyx::docstring;
  55 using lyx::pos_type;
  56
  57 using lyx::graphics::PreviewLoader;
  58
  59 using lyx::support::isStrUnsignedInt;
  60
  61 using boost::bind;
  62 using boost::ref;
  63
  64 using std::endl;
  65 using std::for_each;
  66 using std::max;
  67 using std::string;
  68 using std::auto_ptr;
  69 using std::ostream;
  70 using std::vector;
  71
  72
  73 int InsetText::border_ = 2;
  74
  75
  76 InsetText::InsetText(BufferParams const & bp)
  77         : drawFrame_(false), frame_color_(LColor::insetframe), text_(0)
  78 {
  79         paragraphs().push_back(Paragraph());
  80         paragraphs().back().layout(bp.getLyXTextClass().defaultLayout());
  81         if (bp.tracking_changes)
  82                 paragraphs().back().trackChanges();
  83         // Dispose of the infamous L-shaped cursor.
  84         text_.current_font.setLanguage(bp.language);
  85         text_.real_current_font.setLanguage(bp.language);
  86         init();
  87 }
  88
  89
  90 InsetText::InsetText(InsetText const & in)
  91         : InsetOld(in), text_(in.text_.bv_owner)
  92 {
  93         text_.autoBreakRows_ = in.text_.autoBreakRows_;
  94         drawFrame_ = in.drawFrame_;
  95         frame_color_ = in.frame_color_;
  96         text_.paragraphs() = in.text_.paragraphs();
  97         // Hand current buffer language down to "cloned" textinsets
  98         // e.g. tabular cells
  99         text_.current_font = in.text_.current_font;
 100         text_.real_current_font = in.text_.real_current_font;
 101         init();
 102 }
 103
 104
 105 InsetText::InsetText()
 106         : text_(0)
 107 {}
 108
 109
 110 void InsetText::init()
 111 {
 112         for_each(paragraphs().begin(), paragraphs().end(),
 113                  bind(&Paragraph::setInsetOwner, _1, this));
 114 }
 115
 116
 117 void InsetText::markErased(bool erased)
 118 {
 119         ParagraphList & pars = paragraphs();
 120         for_each(pars.begin(), pars.end(),
 121                  bind(&Paragraph::markErased, _1, erased));
 122 }
 123
 124
 125 void InsetText::clear()
 126 {
 127         ParagraphList & pars = paragraphs();
 128
 129         // This is a gross hack...
 130         LyXLayout_ptr old_layout = pars.begin()->layout();
 131
 132         pars.clear();
 133         pars.push_back(Paragraph());
 134         pars.begin()->setInsetOwner(this);
 135         pars.begin()->layout(old_layout);
 136 }
 137
 138
 139 auto_ptr<InsetBase> InsetText::doClone() const
 140 {
 141         return auto_ptr<InsetBase>(new InsetText(*this));
 142 }
 143
 144
 145 void InsetText::write(Buffer const & buf, ostream & os) const
 146 {
 147         os << "Text\n";
 148         text_.write(buf, os);
 149 }
 150
 151
 152 void InsetText::read(Buffer const & buf, LyXLex & lex)
 153 {
 154         clear();
 155
 156 #ifdef WITH_WARNINGS
 157 #warning John, look here. Doesnt make much sense.
 158 #endif
 159         if (buf.params().tracking_changes)
 160                 paragraphs().begin()->trackChanges();
 161
 162         // delete the initial paragraph
 163         Paragraph oldpar = *paragraphs().begin();
 164         paragraphs().clear();
 165         ErrorList errorList;
 166         bool res = text_.read(buf, lex, errorList);
 167         init();
 168
 169         if (!res) {
 170                 lex.printError("Missing \\end_inset at this point. "
 171                                            "Read: `$$Token'");
 172         }
 173
 174         // sanity check
 175         // ensure we have at least one paragraph.
 176         if (paragraphs().empty())
 177                 paragraphs().push_back(oldpar);
 178 }
 179
 180
 181 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 182 {
 183         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 184         setViewCache(mi.base.bv);
 185         mi.base.textwidth -= 2 * border_;
 186         font_ = mi.base.font;
 187         // Hand font through to contained lyxtext:
 188         text_.font_ = mi.base.font;
 189         text_.metrics(mi, dim);
 190         dim.asc += border_;
 191         dim.des += border_;
 192         dim.wid += 2 * border_;
 193         mi.base.textwidth += 2 * border_;
 194         dim_ = dim;
 195 }
 196
 197
 198 void InsetText::draw(PainterInfo & pi, int x, int y) const
 199 {
 200         BOOST_ASSERT(!text_.paragraphs().front().rows().empty());
 201         // update our idea of where we are
 202         setPosCache(pi, x, y);
 203
 204         text_.background_color_ = backgroundColor();
 205         text_.draw(pi, x + border_, y);
 206
 207         if (drawFrame_) {
 208                 int const w = text_.width() + 2 * border_;
 209                 int const a = text_.ascent() + border_;
 210                 int const h = a + text_.descent() + border_;
 211                 pi.pain.rectangle(x, y - a, (Wide() ? text_.maxwidth_ : w), h,
 212                         frameColor());
 213         }
 214 }
 215
 216
 217 void InsetText::drawSelection(PainterInfo & pi, int x, int y) const
 218 {
 219         int const w = text_.width() + 2 * border_;
 220         int const a = text_.ascent() + border_;
 221         int const h = a + text_.descent() + border_;
 222         pi.pain.fillRectangle(x, y - a, (Wide() ? text_.maxwidth_ : w), h,
 223                 backgroundColor());
 224         text_.drawSelection(pi, x, y);
 225 }
 226
 227
 228 docstring const InsetText::editMessage() const
 229 {
 230         return _("Opened Text Inset");
 231 }
 232
 233
 234 void InsetText::edit(LCursor & cur, bool left)
 235 {
 236         //lyxerr << "InsetText: edit left/right" << endl;
 237         setViewCache(&cur.bv());
 238         int const pit = left ? 0 : paragraphs().size() - 1;
 239         int const pos = left ? 0 : paragraphs().back().size();
 240         text_.setCursor(cur.top(), pit, pos);
 241         cur.clearSelection();
 242         finishUndo();
 243 }
 244
 245
 246 InsetBase * InsetText::editXY(LCursor & cur, int x, int y)
 247 {
 248         return text_.editXY(cur, x, y);
 249 }
 250
 251
 252 void InsetText::forceParagraphsToDefault(LCursor & cur)
 253 {
 254         BufferParams const & bp = cur.buffer().params();
 255         LyXLayout_ptr const layout =
 256                 bp.getLyXTextClass().defaultLayout();
 257         ParagraphList::iterator const end = paragraphs().end();
 258         for (ParagraphList::iterator par = paragraphs().begin();
 259                         par != end; ++par)
 260                 par->layout(layout);
 261 }
 262
 263
 264 void InsetText::doDispatch(LCursor & cur, FuncRequest & cmd)
 265 {
 266         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 267                              << " [ cmd.action = "
 268                              << cmd.action << ']' << endl;
 269         setViewCache(&cur.bv());
 270         text_.dispatch(cur, cmd);
 271 }
 272
 273
 274 bool InsetText::getStatus(LCursor & cur, FuncRequest const & cmd,
 275         FuncStatus & status) const
 276 {
 277         return text_.getStatus(cur, cmd, status);
 278 }
 279
 280
 281 int InsetText::latex(Buffer const & buf, ostream & os,
 282                      OutputParams const & runparams) const
 283 {
 284         TexRow texrow;
 285         latexParagraphs(buf, paragraphs(), os, texrow, runparams);
 286         return texrow.rows();
 287 }
 288
 289
 290 int InsetText::plaintext(Buffer const & buf, ostream & os,
 291                      OutputParams const & runparams) const
 292 {
 293         ParagraphList::const_iterator beg = paragraphs().begin();
 294         ParagraphList::const_iterator end = paragraphs().end();
 295         ParagraphList::const_iterator it = beg;
 296         bool ref_printed = false;
 297         std::ostringstream oss;
 298         for (; it != end; ++it)
 299                 asciiParagraph(buf, *it, oss, runparams, ref_printed);
 300
 301         string const str = oss.str();
 302         os << str;
 303         // Return how many newlines we issued.
 304         return int(lyx::count(str.begin(), str.end(), '\n'));
 305 }
 306
 307
 308 int InsetText::docbook(Buffer const & buf, ostream & os,
 309                        OutputParams const & runparams) const
 310 {
 311         docbookParagraphs(paragraphs(), buf, os, runparams);
 312         return 0;
 313 }
 314
 315
 316 void InsetText::validate(LaTeXFeatures & features) const
 317 {
 318         for_each(paragraphs().begin(), paragraphs().end(),
 319                  bind(&Paragraph::validate, _1, ref(features)));
 320 }
 321
 322
 323 void InsetText::cursorPos
 324         (CursorSlice const & sl, bool boundary, int & x, int & y) const
 325 {
 326         x = text_.cursorX(sl, boundary) + border_;
 327         y = text_.cursorY(sl, boundary);
 328 }
 329
 330
 331 bool InsetText::showInsetDialog(BufferView *) const
 332 {
 333         return false;
 334 }
 335
 336
 337 void InsetText::markNew(bool track_changes)
 338 {
 339         ParagraphList::iterator pit = paragraphs().begin();
 340         ParagraphList::iterator end = paragraphs().end();
 341         for (; pit != end; ++pit) {
 342                 if (track_changes)
 343                         pit->trackChanges();
 344                 else // no-op when not tracking
 345                         pit->cleanChanges();
 346         }
 347 }
 348
 349
 350 void InsetText::setText(docstring const & data, LyXFont const & font)
 351 {
 352         clear();
 353         Paragraph & first = paragraphs().front();
 354         for (unsigned int i = 0; i < data.length(); ++i)
 355                 first.insertChar(i, data[i], font);
 356 }
 357
 358
 359 void InsetText::setAutoBreakRows(bool flag)
 360 {
 361         if (flag == text_.autoBreakRows_)
 362                 return;
 363
 364         text_.autoBreakRows_ = flag;
 365         if (flag)
 366                 return;
 367
 368         // remove previously existing newlines
 369         ParagraphList::iterator it = paragraphs().begin();
 370         ParagraphList::iterator end = paragraphs().end();
 371         for (; it != end; ++it)
 372                 for (int i = 0; i < it->size(); ++i)
 373                         if (it->isNewline(i))
 374                                 it->erase(i);
 375 }
 376
 377
 378 void InsetText::setDrawFrame(bool flag)
 379 {
 380         drawFrame_ = flag;
 381 }
 382
 383
 384 LColor_color InsetText::frameColor() const
 385 {
 386         return LColor::color(frame_color_);
 387 }
 388
 389
 390 void InsetText::setFrameColor(LColor_color col)
 391 {
 392         frame_color_ = col;
 393 }
 394
 395
 396 void InsetText::setViewCache(BufferView const * bv) const
 397 {
 398         if (bv && bv != text_.bv_owner) {
 399                 //lyxerr << "setting view cache from "
 400                 //      << text_.bv_owner << " to " << bv << "\n";
 401                 text_.bv_owner = const_cast<BufferView *>(bv);
 402         }
 403 }
 404
 405
 406 void InsetText::appendParagraphs(Buffer * buffer, ParagraphList & plist)
 407 {
 408 #ifdef WITH_WARNINGS
 409 #warning FIXME Check if Changes stuff needs changing here. (Lgb)
 410 // And it probably does. You have to take a look at this John. (Lgb)
 411 #warning John, have a look here. (Lgb)
 412 #endif
 413         ParagraphList & pl = paragraphs();
 414
 415         ParagraphList::iterator pit = plist.begin();
 416         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
 417         ++pit;
 418         mergeParagraph(buffer->params(), pl,
 419                        std::distance(pl.begin(), ins) - 1);
 420
 421         for_each(pit, plist.end(),
 422                  bind(&ParagraphList::push_back, ref(pl), _1));
 423 }
 424
 425
 426 void InsetText::addPreview(PreviewLoader & loader) const
 427 {
 428         ParagraphList::const_iterator pit = paragraphs().begin();
 429         ParagraphList::const_iterator pend = paragraphs().end();
 430
 431         for (; pit != pend; ++pit) {
 432                 InsetList::const_iterator it  = pit->insetlist.begin();
 433                 InsetList::const_iterator end = pit->insetlist.end();
 434                 for (; it != end; ++it)
 435                         it->inset->addPreview(loader);
 436         }
 437 }
 438
 439
 440 //FIXME: instead of this hack, which only works by chance,
 441 // cells should have their own insetcell type, which returns CELL_CODE!
 442 bool InsetText::neverIndent() const
 443 {
 444         // this is only true for tabular cells
 445         return !text_.isMainText() && lyxCode() == TEXT_CODE;
 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 }