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/Painter.h"
  49
  50 #include "support/lyxalgo.h" // lyx::count
  51
  52 #include <boost/bind.hpp>
  53 #include <boost/current_function.hpp>
  54
  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         bool res = text_.read(buf, lex);
 166         init();
 167
 168         if (!res) {
 169                 lex.printError("Missing \\end_inset at this point. "
 170                                            "Read: `$$Token'");
 171         }
 172
 173         // sanity check
 174         // ensure we have at least one paragraph.
 175         if (paragraphs().empty())
 176                 paragraphs().push_back(oldpar);
 177 }
 178
 179
 180 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 181 {
 182         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 183         setViewCache(mi.base.bv);
 184         mi.base.textwidth -= 2 * border_;
 185         font_ = mi.base.font;
 186         // Hand font through to contained lyxtext:
 187         text_.font_ = mi.base.font;
 188         text_.metrics(mi, dim);
 189         dim.asc += border_;
 190         dim.des += border_;
 191         dim.wid += 2 * border_;
 192         mi.base.textwidth += 2 * border_;
 193         dim_ = dim;
 194 }
 195
 196
 197 void InsetText::draw(PainterInfo & pi, int x, int y) const
 198 {
 199         BOOST_ASSERT(!text_.paragraphs().front().rows().empty());
 200         // update our idea of where we are
 201         setPosCache(pi, x, y);
 202
 203         text_.draw(pi, x + border_, y);
 204
 205         if (drawFrame_) {
 206                 int const w = text_.width() + 2 * border_;
 207                 int const a = text_.ascent() + border_;
 208                 int const h = a + text_.descent() + border_;
 209                 int const ww = pi.base.bv->workWidth();
 210                 if (w > ww - 40)  {
 211                         pi.pain.line(0, y - a, ww, y - a, frameColor());
 212                         pi.pain.line(0, y - a + h, ww, y - a + h, frameColor());
 213                 } else {
 214                         pi.pain.rectangle(x, y - a, w, h, frameColor());
 215                 }
 216         }
 217 }
 218
 219
 220 void InsetText::drawSelection(PainterInfo & pi, int x, int y) const
 221 {
 222         if (backgroundColor() != LColor::background) {
 223                 // repaint the background if needed
 224                 int const w = text_.width() + 2 * border_;
 225                 int const a = text_.ascent() + border_;
 226                 int const h = a + text_.descent() + border_;
 227                 pi.pain.fillRectangle(x, y - a, w, h, backgroundColor());
 228         }
 229         text_.drawSelection(pi, x, y);
 230 }
 231
 232
 233 string const InsetText::editMessage() const
 234 {
 235         return _("Opened Text Inset");
 236 }
 237
 238
 239 void InsetText::edit(LCursor & cur, bool left)
 240 {
 241         //lyxerr << "InsetText: edit left/right" << endl;
 242         setViewCache(&cur.bv());
 243         int const pit = left ? 0 : paragraphs().size() - 1;
 244         int const pos = left ? 0 : paragraphs().back().size();
 245         text_.setCursor(cur.top(), pit, pos);
 246         cur.clearSelection();
 247         finishUndo();
 248 }
 249
 250
 251 InsetBase * InsetText::editXY(LCursor & cur, int x, int y)
 252 {
 253         return text_.editXY(cur, x, y);
 254 }
 255
 256
 257 void InsetText::doDispatch(LCursor & cur, FuncRequest & cmd)
 258 {
 259         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 260     << " [ cmd.action = " << cmd.action << ']' << endl;
 261         setViewCache(&cur.bv());
 262         text_.dispatch(cur, cmd);
 263 }
 264
 265
 266 bool InsetText::getStatus(LCursor & cur, FuncRequest const & cmd,
 267         FuncStatus & status) const
 268 {
 269         return text_.getStatus(cur, cmd, status);
 270 }
 271
 272
 273 int InsetText::latex(Buffer const & buf, ostream & os,
 274                      OutputParams const & runparams) const
 275 {
 276         TexRow texrow;
 277         latexParagraphs(buf, paragraphs(), os, texrow, runparams);
 278         return texrow.rows();
 279 }
 280
 281
 282 int InsetText::plaintext(Buffer const & buf, ostream & os,
 283                      OutputParams const & runparams) const
 284 {
 285         ParagraphList::const_iterator beg = paragraphs().begin();
 286         ParagraphList::const_iterator end = paragraphs().end();
 287         ParagraphList::const_iterator it = beg;
 288         bool ref_printed = false;
 289         for (; it != end; ++it)
 290                 asciiParagraph(buf, *it, os, runparams, ref_printed);
 291
 292         // FIXME: Give the total numbers of lines
 293         return 1;
 294 }
 295
 296
 297 int InsetText::linuxdoc(Buffer const & buf, ostream & os,
 298                         OutputParams const & runparams) const
 299 {
 300         linuxdocParagraphs(buf, paragraphs(), os, runparams);
 301         return 0;
 302 }
 303
 304
 305 int InsetText::docbook(Buffer const & buf, ostream & os,
 306                        OutputParams const & runparams) const
 307 {
 308         docbookParagraphs(paragraphs(), buf, os, runparams);
 309         return 0;
 310 }
 311
 312
 313 void InsetText::validate(LaTeXFeatures & features) const
 314 {
 315         for_each(paragraphs().begin(), paragraphs().end(),
 316                  bind(&Paragraph::validate, _1, ref(features)));
 317 }
 318
 319
 320 void InsetText::cursorPos
 321         (CursorSlice const & sl, bool boundary, int & x, int & y) const
 322 {
 323         x = text_.cursorX(sl, boundary) + border_;
 324         y = text_.cursorY(sl, boundary);
 325 }
 326
 327
 328 bool InsetText::showInsetDialog(BufferView *) const
 329 {
 330         return false;
 331 }
 332
 333
 334 void InsetText::markNew(bool track_changes)
 335 {
 336         ParagraphList::iterator pit = paragraphs().begin();
 337         ParagraphList::iterator end = paragraphs().end();
 338         for (; pit != end; ++pit) {
 339                 if (track_changes)
 340                         pit->trackChanges();
 341                 else // no-op when not tracking
 342                         pit->cleanChanges();
 343         }
 344 }
 345
 346
 347 void InsetText::setText(string const & data, LyXFont const & font)
 348 {
 349         clear();
 350         Paragraph & first = paragraphs().front();
 351         for (unsigned int i = 0; i < data.length(); ++i)
 352                 first.insertChar(i, data[i], font);
 353 }
 354
 355
 356 void InsetText::setAutoBreakRows(bool flag)
 357 {
 358         if (flag == text_.autoBreakRows_)
 359                 return;
 360
 361         text_.autoBreakRows_ = flag;
 362         if (flag)
 363                 return;
 364
 365         // remove previously existing newlines
 366         ParagraphList::iterator it = paragraphs().begin();
 367         ParagraphList::iterator end = paragraphs().end();
 368         for (; it != end; ++it)
 369                 for (int i = 0; i < it->size(); ++i)
 370                         if (it->isNewline(i))
 371                                 it->erase(i);
 372 }
 373
 374
 375 void InsetText::setDrawFrame(bool flag)
 376 {
 377         drawFrame_ = flag;
 378 }
 379
 380
 381 LColor_color InsetText::frameColor() const
 382 {
 383         return LColor::color(frame_color_);
 384 }
 385
 386
 387 void InsetText::setFrameColor(LColor_color col)
 388 {
 389         frame_color_ = col;
 390 }
 391
 392
 393 void InsetText::setViewCache(BufferView const * bv) const
 394 {
 395         if (bv && bv != text_.bv_owner) {
 396                 //lyxerr << "setting view cache from "
 397                 //      << text_.bv_owner << " to " << bv << "\n";
 398                 text_.bv_owner = const_cast<BufferView *>(bv);
 399         }
 400 }
 401
 402
 403 void InsetText::appendParagraphs(Buffer * buffer, ParagraphList & plist)
 404 {
 405 #ifdef WITH_WARNINGS
 406 #warning FIXME Check if Changes stuff needs changing here. (Lgb)
 407 // And it probably does. You have to take a look at this John. (Lgb)
 408 #warning John, have a look here. (Lgb)
 409 #endif
 410         ParagraphList & pl = paragraphs();
 411
 412         ParagraphList::iterator pit = plist.begin();
 413         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
 414         ++pit;
 415         mergeParagraph(buffer->params(), pl, ins - pl.begin() - 1);
 416
 417         for_each(pit, plist.end(),
 418                  bind(&ParagraphList::push_back, ref(pl), _1));
 419 }
 420
 421
 422 void InsetText::addPreview(PreviewLoader & loader) const
 423 {
 424         ParagraphList::const_iterator pit = paragraphs().begin();
 425         ParagraphList::const_iterator pend = paragraphs().end();
 426
 427         for (; pit != pend; ++pit) {
 428                 InsetList::const_iterator it  = pit->insetlist.begin();
 429                 InsetList::const_iterator end = pit->insetlist.end();
 430                 for (; it != end; ++it)
 431                         it->inset->addPreview(loader);
 432         }
 433 }
 434
 435
 436 //FIXME: instead of this hack, which only works by chance,
 437 // cells should have their own insetcell type, which returns CELL_CODE!
 438 bool InsetText::neverIndent() const
 439 {
 440         // this is only true for tabular cells
 441         return !text_.isMainText() && lyxCode() == TEXT_CODE;
 442 }
 443
 444
 445 ParagraphList const & InsetText::paragraphs() const
 446 {
 447         return text_.paragraphs();
 448 }
 449
 450
 451 ParagraphList & InsetText::paragraphs()
 452 {
 453         return text_.paragraphs();
 454 }