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 #include <sstream>
  55
  56 using lyx::docstring;
  57 using lyx::pos_type;
  58
  59 using lyx::graphics::PreviewLoader;
  60
  61 using lyx::support::isStrUnsignedInt;
  62
  63 using boost::bind;
  64 using boost::ref;
  65
  66 using std::endl;
  67 using std::for_each;
  68 using std::max;
  69 using std::string;
  70 using std::auto_ptr;
  71 using std::ostream;
  72 using std::vector;
  73
  74
  75 int InsetText::border_ = 2;
  76
  77
  78 InsetText::InsetText(BufferParams const & bp)
  79         : drawFrame_(false), frame_color_(LColor::insetframe), text_(0)
  80 {
  81         paragraphs().push_back(Paragraph());
  82         paragraphs().back().layout(bp.getLyXTextClass().defaultLayout());
  83         if (bp.tracking_changes)
  84                 paragraphs().back().trackChanges();
  85         // Dispose of the infamous L-shaped cursor.
  86         text_.current_font.setLanguage(bp.language);
  87         text_.real_current_font.setLanguage(bp.language);
  88         init();
  89 }
  90
  91
  92 InsetText::InsetText(InsetText const & in)
  93         : InsetOld(in), text_(in.text_.bv_owner)
  94 {
  95         text_.autoBreakRows_ = in.text_.autoBreakRows_;
  96         drawFrame_ = in.drawFrame_;
  97         frame_color_ = in.frame_color_;
  98         text_.paragraphs() = in.text_.paragraphs();
  99         // Hand current buffer language down to "cloned" textinsets
 100         // e.g. tabular cells
 101         text_.current_font = in.text_.current_font;
 102         text_.real_current_font = in.text_.real_current_font;
 103         init();
 104 }
 105
 106
 107 InsetText::InsetText()
 108         : text_(0)
 109 {}
 110
 111
 112 void InsetText::init()
 113 {
 114         for_each(paragraphs().begin(), paragraphs().end(),
 115                  bind(&Paragraph::setInsetOwner, _1, this));
 116 }
 117
 118
 119 void InsetText::markErased(bool erased)
 120 {
 121         ParagraphList & pars = paragraphs();
 122         for_each(pars.begin(), pars.end(),
 123                  bind(&Paragraph::markErased, _1, erased));
 124 }
 125
 126
 127 void InsetText::clear()
 128 {
 129         ParagraphList & pars = paragraphs();
 130
 131         // This is a gross hack...
 132         LyXLayout_ptr old_layout = pars.begin()->layout();
 133
 134         pars.clear();
 135         pars.push_back(Paragraph());
 136         pars.begin()->setInsetOwner(this);
 137         pars.begin()->layout(old_layout);
 138 }
 139
 140
 141 auto_ptr<InsetBase> InsetText::doClone() const
 142 {
 143         return auto_ptr<InsetBase>(new InsetText(*this));
 144 }
 145
 146
 147 void InsetText::write(Buffer const & buf, ostream & os) const
 148 {
 149         os << "Text\n";
 150         text_.write(buf, os);
 151 }
 152
 153
 154 void InsetText::read(Buffer const & buf, LyXLex & lex)
 155 {
 156         clear();
 157
 158 #ifdef WITH_WARNINGS
 159 #warning John, look here. Doesnt make much sense.
 160 #endif
 161         if (buf.params().tracking_changes)
 162                 paragraphs().begin()->trackChanges();
 163
 164         // delete the initial paragraph
 165         Paragraph oldpar = *paragraphs().begin();
 166         paragraphs().clear();
 167         ErrorList errorList;
 168         bool res = text_.read(buf, lex, errorList);
 169         init();
 170
 171         if (!res) {
 172                 lex.printError("Missing \\end_inset at this point. "
 173                                            "Read: `$$Token'");
 174         }
 175
 176         // sanity check
 177         // ensure we have at least one paragraph.
 178         if (paragraphs().empty())
 179                 paragraphs().push_back(oldpar);
 180 }
 181
 182
 183 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 184 {
 185         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 186         setViewCache(mi.base.bv);
 187         mi.base.textwidth -= 2 * border_;
 188         font_ = mi.base.font;
 189         // Hand font through to contained lyxtext:
 190         text_.font_ = mi.base.font;
 191         text_.metrics(mi, dim);
 192         dim.asc += border_;
 193         dim.des += border_;
 194         dim.wid += 2 * border_;
 195         mi.base.textwidth += 2 * border_;
 196         dim_ = dim;
 197 }
 198
 199
 200 void InsetText::draw(PainterInfo & pi, int x, int y) const
 201 {
 202         BOOST_ASSERT(!text_.paragraphs().front().rows().empty());
 203         // update our idea of where we are
 204         setPosCache(pi, x, y);
 205
 206         text_.background_color_ = backgroundColor();
 207         text_.draw(pi, x + border_, y);
 208
 209         if (drawFrame_) {
 210                 int const w = text_.width() + 2 * border_;
 211                 int const a = text_.ascent() + border_;
 212                 int const h = a + text_.descent() + border_;
 213                 pi.pain.rectangle(x, y - a, (Wide() ? text_.maxwidth_ : w), h,
 214                         frameColor());
 215         }
 216 }
 217
 218
 219 void InsetText::drawSelection(PainterInfo & pi, int x, int y) const
 220 {
 221         int const w = text_.width() + 2 * border_;
 222         int const a = text_.ascent() + border_;
 223         int const h = a + text_.descent() + border_;
 224         pi.pain.fillRectangle(x, y - a, (Wide() ? text_.maxwidth_ : w), h,
 225                 backgroundColor());
 226         text_.drawSelection(pi, x, y);
 227 }
 228
 229
 230 docstring const InsetText::editMessage() const
 231 {
 232         return _("Opened Text Inset");
 233 }
 234
 235
 236 void InsetText::edit(LCursor & cur, bool left)
 237 {
 238         //lyxerr << "InsetText: edit left/right" << endl;
 239         setViewCache(&cur.bv());
 240         int const pit = left ? 0 : paragraphs().size() - 1;
 241         int const pos = left ? 0 : paragraphs().back().size();
 242         text_.setCursor(cur.top(), pit, pos);
 243         cur.clearSelection();
 244         finishUndo();
 245 }
 246
 247
 248 InsetBase * InsetText::editXY(LCursor & cur, int x, int y)
 249 {
 250         return text_.editXY(cur, x, y);
 251 }
 252
 253
 254 void InsetText::doDispatch(LCursor & cur, FuncRequest & cmd)
 255 {
 256         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 257                              << " [ cmd.action = "
 258                              << cmd.action << ']' << endl;
 259         setViewCache(&cur.bv());
 260         text_.dispatch(cur, cmd);
 261 }
 262
 263
 264 bool InsetText::getStatus(LCursor & cur, FuncRequest const & cmd,
 265         FuncStatus & status) const
 266 {
 267         return text_.getStatus(cur, cmd, status);
 268 }
 269
 270
 271 int InsetText::latex(Buffer const & buf, ostream & os,
 272                      OutputParams const & runparams) const
 273 {
 274         TexRow texrow;
 275         latexParagraphs(buf, paragraphs(), os, texrow, runparams);
 276         return texrow.rows();
 277 }
 278
 279
 280 int InsetText::plaintext(Buffer const & buf, ostream & os,
 281                      OutputParams const & runparams) const
 282 {
 283         ParagraphList::const_iterator beg = paragraphs().begin();
 284         ParagraphList::const_iterator end = paragraphs().end();
 285         ParagraphList::const_iterator it = beg;
 286         bool ref_printed = false;
 287         std::ostringstream oss;
 288         for (; it != end; ++it)
 289                 asciiParagraph(buf, *it, oss, runparams, ref_printed);
 290
 291         string const str = oss.str();
 292         os << str;
 293         // Return how many newlines we issued.
 294         return int(lyx::count(str.begin(), str.end(), '\n'));
 295 }
 296
 297
 298 int InsetText::docbook(Buffer const & buf, ostream & os,
 299                        OutputParams const & runparams) const
 300 {
 301         docbookParagraphs(paragraphs(), buf, os, runparams);
 302         return 0;
 303 }
 304
 305
 306 void InsetText::validate(LaTeXFeatures & features) const
 307 {
 308         for_each(paragraphs().begin(), paragraphs().end(),
 309                  bind(&Paragraph::validate, _1, ref(features)));
 310 }
 311
 312
 313 void InsetText::cursorPos
 314         (CursorSlice const & sl, bool boundary, int & x, int & y) const
 315 {
 316         x = text_.cursorX(sl, boundary) + border_;
 317         y = text_.cursorY(sl, boundary);
 318 }
 319
 320
 321 bool InsetText::showInsetDialog(BufferView *) const
 322 {
 323         return false;
 324 }
 325
 326
 327 void InsetText::markNew(bool track_changes)
 328 {
 329         ParagraphList::iterator pit = paragraphs().begin();
 330         ParagraphList::iterator end = paragraphs().end();
 331         for (; pit != end; ++pit) {
 332                 if (track_changes)
 333                         pit->trackChanges();
 334                 else // no-op when not tracking
 335                         pit->cleanChanges();
 336         }
 337 }
 338
 339
 340 void InsetText::setText(docstring const & data, LyXFont const & font)
 341 {
 342         clear();
 343         Paragraph & first = paragraphs().front();
 344         for (unsigned int i = 0; i < data.length(); ++i)
 345                 first.insertChar(i, data[i], font);
 346 }
 347
 348
 349 void InsetText::setAutoBreakRows(bool flag)
 350 {
 351         if (flag == text_.autoBreakRows_)
 352                 return;
 353
 354         text_.autoBreakRows_ = flag;
 355         if (flag)
 356                 return;
 357
 358         // remove previously existing newlines
 359         ParagraphList::iterator it = paragraphs().begin();
 360         ParagraphList::iterator end = paragraphs().end();
 361         for (; it != end; ++it)
 362                 for (int i = 0; i < it->size(); ++i)
 363                         if (it->isNewline(i))
 364                                 it->erase(i);
 365 }
 366
 367
 368 void InsetText::setDrawFrame(bool flag)
 369 {
 370         drawFrame_ = flag;
 371 }
 372
 373
 374 LColor_color InsetText::frameColor() const
 375 {
 376         return LColor::color(frame_color_);
 377 }
 378
 379
 380 void InsetText::setFrameColor(LColor_color col)
 381 {
 382         frame_color_ = col;
 383 }
 384
 385
 386 void InsetText::setViewCache(BufferView const * bv) const
 387 {
 388         if (bv && bv != text_.bv_owner) {
 389                 //lyxerr << "setting view cache from "
 390                 //      << text_.bv_owner << " to " << bv << "\n";
 391                 text_.bv_owner = const_cast<BufferView *>(bv);
 392         }
 393 }
 394
 395
 396 void InsetText::appendParagraphs(Buffer * buffer, ParagraphList & plist)
 397 {
 398 #ifdef WITH_WARNINGS
 399 #warning FIXME Check if Changes stuff needs changing here. (Lgb)
 400 // And it probably does. You have to take a look at this John. (Lgb)
 401 #warning John, have a look here. (Lgb)
 402 #endif
 403         ParagraphList & pl = paragraphs();
 404
 405         ParagraphList::iterator pit = plist.begin();
 406         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
 407         ++pit;
 408         mergeParagraph(buffer->params(), pl,
 409                        std::distance(pl.begin(), ins) - 1);
 410
 411         for_each(pit, plist.end(),
 412                  bind(&ParagraphList::push_back, ref(pl), _1));
 413 }
 414
 415
 416 void InsetText::addPreview(PreviewLoader & loader) const
 417 {
 418         ParagraphList::const_iterator pit = paragraphs().begin();
 419         ParagraphList::const_iterator pend = paragraphs().end();
 420
 421         for (; pit != pend; ++pit) {
 422                 InsetList::const_iterator it  = pit->insetlist.begin();
 423                 InsetList::const_iterator end = pit->insetlist.end();
 424                 for (; it != end; ++it)
 425                         it->inset->addPreview(loader);
 426         }
 427 }
 428
 429
 430 //FIXME: instead of this hack, which only works by chance,
 431 // cells should have their own insetcell type, which returns CELL_CODE!
 432 bool InsetText::neverIndent() const
 433 {
 434         // this is only true for tabular cells
 435         return !text_.isMainText() && lyxCode() == TEXT_CODE;
 436 }
 437
 438
 439 ParagraphList const & InsetText::paragraphs() const
 440 {
 441         return text_.paragraphs();
 442 }
 443
 444
 445 ParagraphList & InsetText::paragraphs()
 446 {
 447         return text_.paragraphs();
 448 }