src/insets/InsetExternal.cpp

   1 /**
   2  * \file InsetExternal.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup Nielsen
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetExternal.h"
  14 #include "insets/ExternalSupport.h"
  15 #include "insets/ExternalTemplate.h"
  16 #include "insets/RenderButton.h"
  17 #include "insets/RenderGraphic.h"
  18 #include "insets/RenderPreview.h"
  19
  20 #include "Buffer.h"
  21 #include "Cursor.h"
  22 #include "DispatchResult.h"
  23 #include "Exporter.h"
  24 #include "FuncStatus.h"
  25 #include "FuncRequest.h"
  26 #include "LaTeXFeatures.h"
  27 #include "Lexer.h"
  28 #include "LyX.h" // use_gui
  29 #include "LyXRC.h"
  30 #include "MetricsInfo.h"
  31 #include "OutputParams.h"
  32
  33 #include "graphics/PreviewLoader.h"
  34
  35 #include "support/debug.h"
  36 #include "support/filetools.h"
  37 #include "support/gettext.h"
  38 #include "support/lstrings.h"
  39 #include "support/lyxlib.h"
  40 #include "support/convert.h"
  41 #include "support/Translator.h"
  42
  43 #include <boost/bind.hpp>
  44
  45 #include <sstream>
  46
  47 using namespace std;
  48 using namespace lyx::support;
  49
  50 namespace {
  51
  52 lyx::external::DisplayType const defaultDisplayType = lyx::external::NoDisplay;
  53
  54 unsigned int const defaultLyxScale = 100;
  55
  56 string defaultTemplateName;
  57
  58 } // namespace anon
  59
  60
  61 namespace lyx {
  62
  63 namespace external {
  64
  65 TempName::TempName()
  66 {
  67         FileName const tempname = FileName::tempName("lyxext");
  68         // FIXME: This is unsafe
  69         tempname.removeFile();
  70         // must have an extension for the converter code to work correctly.
  71         tempname_ = FileName(tempname.absFilename() + ".tmp");
  72 }
  73
  74
  75 TempName::TempName(TempName const &)
  76 {
  77         tempname_ = TempName()();
  78 }
  79
  80
  81 TempName::~TempName()
  82 {
  83         tempname_.removeFile();
  84 }
  85
  86
  87 TempName & TempName::operator=(TempName const & other)
  88 {
  89         if (this != &other)
  90                 tempname_ = TempName()();
  91         return *this;
  92 }
  93
  94
  95 namespace {
  96
  97 /// The translator between the Display enum and corresponding lyx string.
  98 Translator<DisplayType, string> const initTranslator()
  99 {
 100         Translator<DisplayType, string> translator(DefaultDisplay, "default");
 101
 102         // Fill the display translator
 103         translator.addPair(MonochromeDisplay, "monochrome");
 104         translator.addPair(GrayscaleDisplay, "grayscale");
 105         translator.addPair(ColorDisplay, "color");
 106         translator.addPair(PreviewDisplay, "preview");
 107         translator.addPair(NoDisplay, "none");
 108
 109         return translator;
 110 }
 111
 112 } // namespace anon
 113
 114
 115 Translator<DisplayType, string> const & displayTranslator()
 116 {
 117         static Translator<DisplayType, string> const translator =
 118                 initTranslator();
 119         return translator;
 120 }
 121
 122 } // namespace external
 123
 124
 125 InsetExternalParams::InsetExternalParams()
 126         : display(defaultDisplayType),
 127           lyxscale(defaultLyxScale),
 128           draft(false)
 129 {
 130         if (defaultTemplateName.empty()) {
 131                 external::TemplateManager const & etm =
 132                         external::TemplateManager::get();
 133                 templatename_ = etm.getTemplates().begin()->first;
 134         } else
 135                 templatename_ = defaultTemplateName;
 136 }
 137
 138
 139 namespace {
 140
 141 template <typename T>
 142 void clearIfNotFound(T & data, external::TransformID value,
 143                      vector<external::TransformID> const & ids)
 144 {
 145         typedef vector<external::TransformID>::const_iterator
 146                 const_iterator;
 147
 148         const_iterator it  = ids.begin();
 149         const_iterator end = ids.end();
 150         it = find(it, end, value);
 151         if (it == end)
 152                 data = T();
 153 }
 154
 155 } // namespace anon
 156
 157
 158 void InsetExternalParams::settemplate(string const & name)
 159 {
 160         templatename_ = name;
 161
 162         external::TemplateManager const & etm =
 163                 external::TemplateManager::get();
 164         external::Template const * const et = etm.getTemplateByName(name);
 165         if (!et)
 166                 // Be safe. Don't lose data.
 167                 return;
 168
 169         // Ascertain which transforms the template supports.
 170         // Empty all those that it doesn't.
 171         vector<external::TransformID> const & ids = et->transformIds;
 172         clearIfNotFound(clipdata,     external::Clip,   ids);
 173         clearIfNotFound(extradata,    external::Extra,  ids);
 174         clearIfNotFound(resizedata,   external::Resize, ids);
 175         clearIfNotFound(rotationdata, external::Rotate, ids);
 176 }
 177
 178
 179 void InsetExternalParams::write(Buffer const & buf, ostream & os) const
 180 {
 181         os << "External\n"
 182            << "\ttemplate " << templatename() << '\n';
 183
 184         if (!filename.empty()) {
 185                 os << "\tfilename " << filename.outputFilename(buf.filePath()) << '\n';
 186                 os << "\tembed " << (filename.embedded() ? filename.inzipName() : "\"\"") << '\n';
 187         }
 188         if (display != defaultDisplayType)
 189                 os << "\tdisplay "
 190                    << external::displayTranslator().find(display)
 191                    << '\n';
 192
 193         if (lyxscale != defaultLyxScale)
 194                 os << "\tlyxscale " << convert<string>(lyxscale) << '\n';
 195
 196         if (draft)
 197                 os << "\tdraft\n";
 198
 199         if (!clipdata.bbox.empty())
 200                 os << "\tboundingBox " << clipdata.bbox << '\n';
 201         if (clipdata.clip)
 202                 os << "\tclip\n";
 203
 204         external::ExtraData::const_iterator it  = extradata.begin();
 205         external::ExtraData::const_iterator end = extradata.end();
 206         for (; it != end; ++it) {
 207                 if (!it->second.empty())
 208                         os << "\textra " << it->first << " \""
 209                            << it->second << "\"\n";
 210         }
 211
 212         if (!rotationdata.no_rotation()) {
 213                 os << "\trotateAngle " << rotationdata.adjAngle() << '\n';
 214                 if (rotationdata.origin() != external::RotationData::DEFAULT)
 215                         os << "\trotateOrigin "
 216                            << rotationdata.originString() << '\n';
 217         }
 218
 219         if (!resizedata.no_resize()) {
 220                 double const scl = convert<double>(resizedata.scale);
 221                 if (!float_equal(scl, 0.0, 0.05)) {
 222                         if (!float_equal(scl, 100.0, 0.05))
 223                                 os << "\tscale "
 224                                    << resizedata.scale << '\n';
 225                 } else {
 226                         if (!resizedata.width.zero())
 227                                 os << "\twidth "
 228                                    << resizedata.width.asString() << '\n';
 229                         if (!resizedata.height.zero())
 230                                 os << "\theight "
 231                                    << resizedata.height.asString() << '\n';
 232                 }
 233                 if (resizedata.keepAspectRatio)
 234                         os << "\tkeepAspectRatio\n";
 235         }
 236 }
 237
 238
 239 bool InsetExternalParams::read(Buffer const & buffer, Lexer & lex)
 240 {
 241         enum ExternalTags {
 242                 EX_TEMPLATE = 1,
 243                 EX_FILENAME,
 244                 EX_EMBED,
 245                 EX_DISPLAY,
 246                 EX_LYXSCALE,
 247                 EX_DRAFT,
 248                 EX_BOUNDINGBOX,
 249                 EX_CLIP,
 250                 EX_EXTRA,
 251                 EX_HEIGHT,
 252                 EX_KEEPASPECTRATIO,
 253                 EX_ROTATEANGLE,
 254                 EX_ROTATEORIGIN,
 255                 EX_SCALE,
 256                 EX_WIDTH,
 257                 EX_END
 258         };
 259
 260         keyword_item external_tags[] = {
 261                 { "\\end_inset",     EX_END },
 262                 { "boundingBox",     EX_BOUNDINGBOX },
 263                 { "clip",            EX_CLIP },
 264                 { "display",         EX_DISPLAY},
 265                 { "draft",           EX_DRAFT},
 266                 { "embed",           EX_EMBED},
 267                 { "extra",           EX_EXTRA },
 268                 { "filename",        EX_FILENAME},
 269                 { "height",          EX_HEIGHT },
 270                 { "keepAspectRatio", EX_KEEPASPECTRATIO },
 271                 { "lyxscale",        EX_LYXSCALE},
 272                 { "rotateAngle",     EX_ROTATEANGLE },
 273                 { "rotateOrigin",    EX_ROTATEORIGIN },
 274                 { "scale",           EX_SCALE },
 275                 { "template",        EX_TEMPLATE },
 276                 { "width",           EX_WIDTH }
 277         };
 278
 279         PushPopHelper pph(lex, external_tags, EX_END);
 280
 281         bool found_end  = false;
 282         bool read_error = false;
 283
 284         while (lex.isOK()) {
 285                 switch (lex.lex()) {
 286                 case EX_TEMPLATE:
 287                         lex.next();
 288                         templatename_ = lex.getString();
 289                         break;
 290
 291                 case EX_FILENAME: {
 292                         lex.eatLine();
 293                         string const name = lex.getString();
 294                         filename.set(name, buffer.filePath());
 295                         break;
 296                 }
 297
 298                 case EX_EMBED: {
 299                         lex.next();
 300                         string const name = lex.getString();
 301                         filename.setInzipName(name);
 302                         filename.setEmbed(!name.empty());
 303                         break;
 304                 }
 305
 306                 case EX_DISPLAY: {
 307                         lex.next();
 308                         string const name = lex.getString();
 309                         display = external::displayTranslator().find(name);
 310                         break;
 311                 }
 312
 313                 case EX_LYXSCALE:
 314                         lex.next();
 315                         lyxscale = lex.getInteger();
 316                         break;
 317
 318                 case EX_DRAFT:
 319                         draft = true;
 320                         break;
 321
 322                 case EX_BOUNDINGBOX:
 323                         lex.next();
 324                         clipdata.bbox.xl = lex.getInteger();
 325                         lex.next();
 326                         clipdata.bbox.yb = lex.getInteger();
 327                         lex.next();
 328                         clipdata.bbox.xr = lex.getInteger();
 329                         lex.next();
 330                         clipdata.bbox.yt = lex.getInteger();
 331                         break;
 332
 333                 case EX_CLIP:
 334                         clipdata.clip = true;
 335                         break;
 336
 337                 case EX_EXTRA: {
 338                         lex.next();
 339                         string const name = lex.getString();
 340                         lex.next();
 341                         extradata.set(name, lex.getString());
 342                         break;
 343                 }
 344
 345                 case EX_HEIGHT:
 346                         lex.next();
 347                         resizedata.height = Length(lex.getString());
 348                         break;
 349
 350                 case EX_KEEPASPECTRATIO:
 351                         resizedata.keepAspectRatio = true;
 352                         break;
 353
 354                 case EX_ROTATEANGLE:
 355                         lex.next();
 356                         rotationdata.angle = lex.getString();
 357                         break;
 358
 359                 case EX_ROTATEORIGIN:
 360                         lex.next();
 361                         rotationdata.origin(lex.getString());
 362                         break;
 363
 364                 case EX_SCALE:
 365                         lex.next();
 366                         resizedata.scale = lex.getString();
 367                         break;
 368
 369                 case EX_WIDTH:
 370                         lex.next();
 371                         resizedata.width = Length(lex.getString());
 372                         break;
 373
 374                 case EX_END:
 375                         found_end = true;
 376                         break;
 377
 378                 default:
 379                         lex.printError("ExternalInset::read: Wrong tag: $$Token");
 380                         read_error = true;
 381                         break;
 382                 }
 383
 384                 if (found_end || read_error)
 385                         break;
 386         }
 387
 388         if (!found_end)
 389                 lex.printError("ExternalInsetParams::read: Missing \\end_inset.");
 390
 391         // This is a trick to make sure that the data are self-consistent.
 392         settemplate(templatename_);
 393
 394         if (lyxerr.debugging(Debug::EXTERNAL)) {
 395                 lyxerr  << "InsetExternalParams::read:\n";
 396                 write(buffer, lyxerr);
 397         }
 398
 399         return !read_error;
 400 }
 401
 402
 403 InsetExternal::InsetExternal()
 404         : renderer_(new RenderButton)
 405 {}
 406
 407
 408 InsetExternal::InsetExternal(InsetExternal const & other)
 409         : Inset(other),
 410           boost::signals::trackable(),
 411           params_(other.params_),
 412           renderer_(other.renderer_->clone(this))
 413 {}
 414
 415
 416 InsetExternal::~InsetExternal()
 417 {
 418         InsetExternalMailer(*this).hideDialog();
 419 }
 420
 421
 422 void InsetExternal::statusChanged() const
 423 {
 424         updateFrontend();
 425 }
 426
 427
 428 void InsetExternal::doDispatch(Cursor & cur, FuncRequest & cmd)
 429 {
 430         switch (cmd.action) {
 431
 432         case LFUN_EXTERNAL_EDIT: {
 433                 InsetExternalParams p;
 434                 InsetExternalMailer::string2params(to_utf8(cmd.argument()), buffer(), p);
 435                 external::editExternal(p, buffer());
 436                 break;
 437         }
 438
 439         case LFUN_INSET_MODIFY: {
 440                 InsetExternalParams p;
 441                 InsetExternalMailer::string2params(to_utf8(cmd.argument()), buffer(), p);
 442                 setParams(p);
 443                 break;
 444         }
 445
 446         case LFUN_INSET_DIALOG_UPDATE:
 447                 InsetExternalMailer(*this).updateDialog(&cur.bv());
 448                 break;
 449
 450         case LFUN_MOUSE_RELEASE:
 451                 if (!cur.selection())
 452                         InsetExternalMailer(*this).showDialog(&cur.bv());
 453                 break;
 454
 455         default:
 456                 Inset::doDispatch(cur, cmd);
 457         }
 458 }
 459
 460
 461 bool InsetExternal::getStatus(Cursor & cur, FuncRequest const & cmd,
 462                 FuncStatus & flag) const
 463 {
 464         switch (cmd.action) {
 465
 466         case LFUN_EXTERNAL_EDIT:
 467         case LFUN_INSET_MODIFY:
 468         case LFUN_INSET_DIALOG_UPDATE:
 469                 flag.enabled(true);
 470                 return true;
 471
 472         default:
 473                 return Inset::getStatus(cur, cmd, flag);
 474         }
 475 }
 476
 477
 478 void InsetExternal::registerEmbeddedFiles(EmbeddedFileList & files) const
 479 {
 480         files.registerFile(params_.filename, this, buffer());
 481 }
 482
 483
 484 void InsetExternal::updateEmbeddedFile(EmbeddedFile const & file)
 485 {
 486         params_.filename = file;
 487 }
 488
 489
 490 void InsetExternal::edit(Cursor & cur, bool, EntryDirection)
 491 {
 492         InsetExternalMailer(*this).showDialog(&cur.bv());
 493 }
 494
 495
 496 void InsetExternal::metrics(MetricsInfo & mi, Dimension & dim) const
 497 {
 498         renderer_->metrics(mi, dim);
 499 }
 500
 501
 502 void InsetExternal::draw(PainterInfo & pi, int x, int y) const
 503 {
 504         renderer_->draw(pi, x, y);
 505 }
 506
 507
 508 namespace {
 509
 510 enum RenderType {
 511         RENDERBUTTON,
 512         RENDERGRAPHIC,
 513         RENDERPREVIEW
 514 };
 515
 516
 517 RenderType getRenderType(InsetExternalParams const & p)
 518 {
 519         if (!external::getTemplatePtr(p) ||
 520             p.filename.empty() ||
 521             p.display == external::NoDisplay)
 522                 return RENDERBUTTON;
 523
 524         if (p.display == external::PreviewDisplay) {
 525                 if (RenderPreview::status() != LyXRC::PREVIEW_OFF)
 526                         return RENDERPREVIEW;
 527                 return RENDERBUTTON;
 528         }
 529
 530         if (p.display == external::DefaultDisplay &&
 531             lyxrc.display_graphics == graphics::NoDisplay)
 532                 return RENDERBUTTON;
 533         return RENDERGRAPHIC;
 534 }
 535
 536
 537 graphics::Params get_grfx_params(InsetExternalParams const & eparams)
 538 {
 539         graphics::Params gparams;
 540
 541         gparams.filename = eparams.filename.availableFile();
 542         gparams.icon = eparams.filename.embedded() ? "pin.png" : "";
 543         gparams.scale = eparams.lyxscale;
 544         if (eparams.clipdata.clip)
 545                 gparams.bb = eparams.clipdata.bbox;
 546         gparams.angle = convert<double>(eparams.rotationdata.adjAngle());
 547
 548         switch (eparams.display) {
 549         case external::DefaultDisplay:
 550                 gparams.display = graphics::DefaultDisplay;
 551                 break;
 552         case external::MonochromeDisplay:
 553                 gparams.display = graphics::MonochromeDisplay;
 554                 break;
 555         case external::GrayscaleDisplay:
 556                 gparams.display = graphics::GrayscaleDisplay;
 557                 break;
 558         case external::ColorDisplay:
 559                 gparams.display = graphics::ColorDisplay;
 560                 break;
 561         case external::NoDisplay:
 562                 gparams.display = graphics::NoDisplay;
 563                 break;
 564         default:
 565                 BOOST_ASSERT(false);
 566         }
 567         if (gparams.display == graphics::DefaultDisplay)
 568                 gparams.display = graphics::DisplayType(lyxrc.display_graphics);
 569         // Override the above if we're not using a gui
 570         if (!use_gui)
 571                 gparams.display = graphics::NoDisplay;
 572
 573         return gparams;
 574 }
 575
 576
 577 docstring screenLabel(InsetExternalParams const & params,
 578                             Buffer const & buffer)
 579 {
 580         external::Template const * const ptr =
 581                 external::getTemplatePtr(params);
 582         if (!ptr)
 583                 // FIXME UNICODE
 584                 return bformat((_("External template %1$s is not installed")),
 585                                         from_utf8(params.templatename()));
 586         // FIXME UNICODE
 587         docstring gui = _(ptr->guiName);
 588         return from_utf8(external::doSubstitution(params, buffer,
 589                                 to_utf8(gui), false));
 590 }
 591
 592 } // namespace anon
 593
 594
 595 static bool isPreviewWanted(InsetExternalParams const & params)
 596 {
 597         return params.display == external::PreviewDisplay &&
 598                 params.filename.isReadableFile();
 599 }
 600
 601
 602 static docstring latexString(InsetExternal const & inset)
 603 {
 604         odocstringstream os;
 605         // We don't need to set runparams.encoding since it is not used by
 606         // latex().
 607         OutputParams runparams(0);
 608         runparams.flavor = OutputParams::LATEX;
 609         inset.latex(os, runparams);
 610         return os.str();
 611 }
 612
 613
 614 static void add_preview_and_start_loading(RenderMonitoredPreview & renderer,
 615                                    InsetExternal const & inset,
 616                                    Buffer const & buffer)
 617 {
 618         InsetExternalParams const & params = inset.params();
 619
 620         if (RenderPreview::status() != LyXRC::PREVIEW_OFF &&
 621             isPreviewWanted(params)) {
 622                 renderer.setAbsFile(params.filename);
 623                 docstring const snippet = latexString(inset);
 624                 renderer.addPreview(snippet, buffer);
 625                 renderer.startLoading(buffer);
 626         }
 627 }
 628
 629
 630 InsetExternalParams const & InsetExternal::params() const
 631 {
 632         return params_;
 633 }
 634
 635
 636 void InsetExternal::setParams(InsetExternalParams const & p)
 637 {
 638         params_ = p;
 639
 640         // Subsequent calls to the InsetExternal::Params default constructor
 641         // will use this.
 642         defaultTemplateName = params_.templatename();
 643
 644         switch (getRenderType(params_)) {
 645         case RENDERBUTTON: {
 646                 RenderButton * button_ptr = renderer_->asButton();
 647                 if (!button_ptr) {
 648                         renderer_.reset(new RenderButton);
 649                         button_ptr = renderer_->asButton();
 650                 }
 651
 652                 button_ptr->update(screenLabel(params_, buffer()), true);
 653                 break;
 654         }
 655
 656         case RENDERGRAPHIC: {
 657                 RenderGraphic * graphic_ptr = renderer_->asGraphic();
 658                 if (!graphic_ptr) {
 659                         renderer_.reset(new RenderGraphic(this));
 660                         graphic_ptr = renderer_->asGraphic();
 661                 }
 662
 663                 graphic_ptr->update(get_grfx_params(params_));
 664
 665                 break;
 666         }
 667
 668         case RENDERPREVIEW: {
 669                 RenderMonitoredPreview * preview_ptr =
 670                         renderer_->asMonitoredPreview();
 671                 if (!preview_ptr) {
 672                         renderer_.reset(new RenderMonitoredPreview(this));
 673                         preview_ptr = renderer_->asMonitoredPreview();
 674                         preview_ptr->fileChanged(
 675                                 boost::bind(&InsetExternal::fileChanged, this));
 676                 }
 677
 678                 if (preview_ptr->monitoring())
 679                         preview_ptr->stopMonitoring();
 680                 add_preview_and_start_loading(*preview_ptr, *this, buffer());
 681
 682                 break;
 683         }
 684         }
 685 }
 686
 687
 688 void InsetExternal::fileChanged() const
 689 {
 690         Buffer const * const buffer = updateFrontend();
 691         if (!buffer)
 692                 return;
 693
 694         RenderMonitoredPreview * const ptr = renderer_->asMonitoredPreview();
 695         BOOST_ASSERT(ptr);
 696
 697         ptr->removePreview(*buffer);
 698         add_preview_and_start_loading(*ptr, *this, *buffer);
 699 }
 700
 701
 702 void InsetExternal::write(ostream & os) const
 703 {
 704         params_.write(buffer(), os);
 705 }
 706
 707
 708 void InsetExternal::read(Lexer & lex)
 709 {
 710         InsetExternalParams params;
 711         if (params.read(buffer(), lex)) {
 712                 // exception handling is not needed as long as embedded files are in place.
 713                 params.filename.enable(buffer().embedded(), &buffer(), false);
 714                 setParams(params);
 715         }
 716 }
 717
 718
 719 int InsetExternal::latex(odocstream & os, OutputParams const & runparams) const
 720 {
 721         if (params_.draft) {
 722                 // FIXME UNICODE
 723                 os << "\\fbox{\\ttfamily{}"
 724                    << from_utf8(params_.filename.outputFilename(buffer().filePath()))
 725                    << "}\n";
 726                 return 1;
 727         }
 728
 729         // "nice" means that the buffer is exported to LaTeX format but not
 730         // run through the LaTeX compiler.
 731         // If we're running through the LaTeX compiler, we should write the
 732         // generated files in the buffer's temporary directory.
 733         bool const external_in_tmpdir = !runparams.nice;
 734         bool const dryrun = runparams.dryrun || runparams.inComment;
 735
 736         // If the template has specified a PDFLaTeX output, then we try and
 737         // use that.
 738         if (runparams.flavor == OutputParams::PDFLATEX) {
 739                 external::Template const * const et_ptr =
 740                         external::getTemplatePtr(params_);
 741                 if (!et_ptr)
 742                         return 0;
 743                 external::Template const & et = *et_ptr;
 744
 745                 external::Template::Formats::const_iterator cit =
 746                         et.formats.find("PDFLaTeX");
 747
 748                 if (cit != et.formats.end()) {
 749                         return external::writeExternal(params_, "PDFLaTeX",
 750                                                        buffer(), os,
 751                                                        *(runparams.exportdata),
 752                                                        external_in_tmpdir,
 753                                                        dryrun);
 754                 }
 755         }
 756
 757         return external::writeExternal(params_, "LaTeX", buffer(), os,
 758                                        *(runparams.exportdata),
 759                                        external_in_tmpdir,
 760                                        dryrun);
 761 }
 762
 763
 764 int InsetExternal::plaintext(odocstream & os,
 765                              OutputParams const & runparams) const
 766 {
 767         os << '\n'; // output external material on a new line
 768         external::writeExternal(params_, "Ascii", buffer(), os,
 769                                 *(runparams.exportdata), false,
 770                                 runparams.dryrun || runparams.inComment);
 771         return PLAINTEXT_NEWLINE;
 772 }
 773
 774
 775 int InsetExternal::docbook(odocstream & os,
 776                            OutputParams const & runparams) const
 777 {
 778         return external::writeExternal(params_, "DocBook", buffer(), os,
 779                                        *(runparams.exportdata), false,
 780                                        runparams.dryrun || runparams.inComment);
 781 }
 782
 783
 784 void InsetExternal::validate(LaTeXFeatures & features) const
 785 {
 786         if (params_.draft)
 787                 return;
 788
 789         external::Template const * const et_ptr =
 790                 external::getTemplatePtr(params_);
 791         if (!et_ptr)
 792                 return;
 793         external::Template const & et = *et_ptr;
 794
 795         string format;
 796         switch (features.runparams().flavor) {
 797         case OutputParams::LATEX:
 798                 format = "LaTeX";
 799                 break;
 800         case OutputParams::PDFLATEX:
 801                 format = "PDFLaTeX";
 802                 break;
 803         case OutputParams::XML:
 804                 format = "DocBook";
 805                 break;
 806         }
 807         external::Template::Formats::const_iterator cit =
 808                 et.formats.find(format);
 809         if (cit == et.formats.end())
 810                 return;
 811
 812         // FIXME: We don't need that always
 813         features.require("lyxdot");
 814
 815         vector<string>::const_iterator it  = cit->second.requirements.begin();
 816         vector<string>::const_iterator end = cit->second.requirements.end();
 817         for (; it != end; ++it)
 818                 features.require(*it);
 819
 820         external::TemplateManager & etm = external::TemplateManager::get();
 821
 822         it  = cit->second.preambleNames.begin();
 823         end = cit->second.preambleNames.end();
 824         for (; it != end; ++it) {
 825                 string const preamble = etm.getPreambleDefByName(*it);
 826                 if (!preamble.empty())
 827                         features.addPreambleSnippet(preamble);
 828         }
 829 }
 830
 831
 832 //
 833 // preview stuff
 834 //
 835
 836 void InsetExternal::addPreview(graphics::PreviewLoader & ploader) const
 837 {
 838         RenderMonitoredPreview * const ptr = renderer_->asMonitoredPreview();
 839         if (!ptr)
 840                 return;
 841
 842         if (isPreviewWanted(params())) {
 843                 ptr->setAbsFile(params_.filename);
 844                 docstring const snippet = latexString(*this);
 845                 ptr->addPreview(snippet, ploader);
 846         }
 847 }
 848
 849
 850 /// Mailer stuff
 851
 852 string const InsetExternalMailer::name_("external");
 853
 854 InsetExternalMailer::InsetExternalMailer(InsetExternal & inset)
 855         : inset_(inset)
 856 {}
 857
 858
 859 string const InsetExternalMailer::inset2string(Buffer const & buffer) const
 860 {
 861         return params2string(inset_.params(), buffer);
 862 }
 863
 864
 865 void InsetExternalMailer::string2params(string const & in,
 866                                         Buffer const & buffer,
 867                                         InsetExternalParams & params)
 868 {
 869         params = InsetExternalParams();
 870         if (in.empty())
 871                 return;
 872
 873         istringstream data(in);
 874         Lexer lex(0,0);
 875         lex.setStream(data);
 876
 877         string name;
 878         lex >> name;
 879         if (!lex || name != name_)
 880                 return print_mailer_error("InsetExternalMailer", in, 1, name_);
 881
 882         // This is part of the inset proper that is usually swallowed
 883         // by Text::readInset
 884         string id;
 885         lex >> id;
 886         if (!lex || id != "External")
 887                 return print_mailer_error("InsetBoxMailer", in, 2, "External");
 888
 889         params.read(buffer, lex);
 890 }
 891
 892
 893 string const
 894 InsetExternalMailer::params2string(InsetExternalParams const & params,
 895                                    Buffer const & buffer)
 896 {
 897         ostringstream data;
 898         data << name_ << ' ';
 899         params.write(buffer, data);
 900         data << "\\end_inset\n";
 901         return data.str();
 902 }
 903
 904 } // namespace lyx