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 "frontends/alert.h"
  34
  35 #include "graphics/PreviewLoader.h"
  36
  37 #include "support/debug.h"
  38 #include "support/ExceptionMessage.h"
  39 #include "support/filetools.h"
  40 #include "support/gettext.h"
  41 #include "support/lstrings.h"
  42 #include "support/lyxlib.h"
  43 #include "support/convert.h"
  44 #include "support/Translator.h"
  45
  46 #include <boost/bind.hpp>
  47
  48 #include <sstream>
  49
  50 using namespace std;
  51 using namespace lyx::support;
  52
  53 namespace {
  54
  55 lyx::external::DisplayType const defaultDisplayType = lyx::external::NoDisplay;
  56
  57 unsigned int const defaultLyxScale = 100;
  58
  59 string defaultTemplateName;
  60
  61 } // namespace anon
  62
  63
  64 namespace lyx {
  65
  66 namespace Alert = frontend::Alert;
  67
  68 namespace external {
  69
  70 TempName::TempName()
  71 {
  72         FileName const tempname = FileName::tempName("lyxext");
  73         // FIXME: This is unsafe
  74         tempname.removeFile();
  75         // must have an extension for the converter code to work correctly.
  76         tempname_ = FileName(tempname.absFilename() + ".tmp");
  77 }
  78
  79
  80 TempName::TempName(TempName const &)
  81 {
  82         tempname_ = TempName()();
  83 }
  84
  85
  86 TempName::~TempName()
  87 {
  88         tempname_.removeFile();
  89 }
  90
  91
  92 TempName & TempName::operator=(TempName const & other)
  93 {
  94         if (this != &other)
  95                 tempname_ = TempName()();
  96         return *this;
  97 }
  98
  99
 100 namespace {
 101
 102 /// The translator between the Display enum and corresponding lyx string.
 103 Translator<DisplayType, string> const initTranslator()
 104 {
 105         Translator<DisplayType, string> translator(DefaultDisplay, "default");
 106
 107         // Fill the display translator
 108         translator.addPair(MonochromeDisplay, "monochrome");
 109         translator.addPair(GrayscaleDisplay, "grayscale");
 110         translator.addPair(ColorDisplay, "color");
 111         translator.addPair(PreviewDisplay, "preview");
 112         translator.addPair(NoDisplay, "none");
 113
 114         return translator;
 115 }
 116
 117 } // namespace anon
 118
 119
 120 Translator<DisplayType, string> const & displayTranslator()
 121 {
 122         static Translator<DisplayType, string> const translator =
 123                 initTranslator();
 124         return translator;
 125 }
 126
 127 } // namespace external
 128
 129
 130 InsetExternalParams::InsetExternalParams()
 131         : display(defaultDisplayType),
 132           lyxscale(defaultLyxScale),
 133           draft(false)
 134 {
 135         if (defaultTemplateName.empty()) {
 136                 external::TemplateManager const & etm =
 137                         external::TemplateManager::get();
 138                 templatename_ = etm.getTemplates().begin()->first;
 139         } else
 140                 templatename_ = defaultTemplateName;
 141 }
 142
 143
 144 namespace {
 145
 146 template <typename T>
 147 void clearIfNotFound(T & data, external::TransformID value,
 148                      vector<external::TransformID> const & ids)
 149 {
 150         typedef vector<external::TransformID>::const_iterator
 151                 const_iterator;
 152
 153         const_iterator it  = ids.begin();
 154         const_iterator end = ids.end();
 155         it = find(it, end, value);
 156         if (it == end)
 157                 data = T();
 158 }
 159
 160 } // namespace anon
 161
 162
 163 void InsetExternalParams::settemplate(string const & name)
 164 {
 165         templatename_ = name;
 166
 167         external::TemplateManager const & etm =
 168                 external::TemplateManager::get();
 169         external::Template const * const et = etm.getTemplateByName(name);
 170         if (!et)
 171                 // Be safe. Don't lose data.
 172                 return;
 173
 174         // Ascertain which transforms the template supports.
 175         // Empty all those that it doesn't.
 176         vector<external::TransformID> const & ids = et->transformIds;
 177         clearIfNotFound(clipdata,     external::Clip,   ids);
 178         clearIfNotFound(extradata,    external::Extra,  ids);
 179         clearIfNotFound(resizedata,   external::Resize, ids);
 180         clearIfNotFound(rotationdata, external::Rotate, ids);
 181 }
 182
 183
 184 void InsetExternalParams::write(Buffer const & buf, ostream & os) const
 185 {
 186         os << "External\n"
 187            << "\ttemplate " << templatename() << '\n';
 188
 189         if (!filename.empty()) {
 190                 os << "\tfilename " << filename.outputFilename(buf.filePath()) << '\n';
 191                 os << "\tembed " << (filename.embedded() ? filename.inzipName() : "\"\"") << '\n';
 192         }
 193         if (display != defaultDisplayType)
 194                 os << "\tdisplay "
 195                    << external::displayTranslator().find(display)
 196                    << '\n';
 197
 198         if (lyxscale != defaultLyxScale)
 199                 os << "\tlyxscale " << convert<string>(lyxscale) << '\n';
 200
 201         if (draft)
 202                 os << "\tdraft\n";
 203
 204         if (!clipdata.bbox.empty())
 205                 os << "\tboundingBox " << clipdata.bbox << '\n';
 206         if (clipdata.clip)
 207                 os << "\tclip\n";
 208
 209         external::ExtraData::const_iterator it  = extradata.begin();
 210         external::ExtraData::const_iterator end = extradata.end();
 211         for (; it != end; ++it) {
 212                 if (!it->second.empty())
 213                         os << "\textra " << it->first << " \""
 214                            << it->second << "\"\n";
 215         }
 216
 217         if (!rotationdata.no_rotation()) {
 218                 os << "\trotateAngle " << rotationdata.adjAngle() << '\n';
 219                 if (rotationdata.origin() != external::RotationData::DEFAULT)
 220                         os << "\trotateOrigin "
 221                            << rotationdata.originString() << '\n';
 222         }
 223
 224         if (!resizedata.no_resize()) {
 225                 double const scl = convert<double>(resizedata.scale);
 226                 if (!float_equal(scl, 0.0, 0.05)) {
 227                         if (!float_equal(scl, 100.0, 0.05))
 228                                 os << "\tscale "
 229                                    << resizedata.scale << '\n';
 230                 } else {
 231                         if (!resizedata.width.zero())
 232                                 os << "\twidth "
 233                                    << resizedata.width.asString() << '\n';
 234                         if (!resizedata.height.zero())
 235                                 os << "\theight "
 236                                    << resizedata.height.asString() << '\n';
 237                 }
 238                 if (resizedata.keepAspectRatio)
 239                         os << "\tkeepAspectRatio\n";
 240         }
 241 }
 242
 243
 244 bool InsetExternalParams::read(Buffer const & buffer, Lexer & lex)
 245 {
 246         enum ExternalTags {
 247                 EX_TEMPLATE = 1,
 248                 EX_FILENAME,
 249                 EX_EMBED,
 250                 EX_DISPLAY,
 251                 EX_LYXSCALE,
 252                 EX_DRAFT,
 253                 EX_BOUNDINGBOX,
 254                 EX_CLIP,
 255                 EX_EXTRA,
 256                 EX_HEIGHT,
 257                 EX_KEEPASPECTRATIO,
 258                 EX_ROTATEANGLE,
 259                 EX_ROTATEORIGIN,
 260                 EX_SCALE,
 261                 EX_WIDTH,
 262                 EX_END
 263         };
 264
 265         keyword_item external_tags[] = {
 266                 { "\\end_inset",     EX_END },
 267                 { "boundingBox",     EX_BOUNDINGBOX },
 268                 { "clip",            EX_CLIP },
 269                 { "display",         EX_DISPLAY},
 270                 { "draft",           EX_DRAFT},
 271                 { "embed",           EX_EMBED},
 272                 { "extra",           EX_EXTRA },
 273                 { "filename",        EX_FILENAME},
 274                 { "height",          EX_HEIGHT },
 275                 { "keepAspectRatio", EX_KEEPASPECTRATIO },
 276                 { "lyxscale",        EX_LYXSCALE},
 277                 { "rotateAngle",     EX_ROTATEANGLE },
 278                 { "rotateOrigin",    EX_ROTATEORIGIN },
 279                 { "scale",           EX_SCALE },
 280                 { "template",        EX_TEMPLATE },
 281                 { "width",           EX_WIDTH }
 282         };
 283
 284         PushPopHelper pph(lex, external_tags, EX_END);
 285
 286         bool found_end  = false;
 287         bool read_error = false;
 288
 289         while (lex.isOK()) {
 290                 switch (lex.lex()) {
 291                 case EX_TEMPLATE:
 292                         lex.next();
 293                         templatename_ = lex.getString();
 294                         break;
 295
 296                 case EX_FILENAME: {
 297                         lex.eatLine();
 298                         string const name = lex.getString();
 299                         filename.set(name, buffer.filePath());
 300                         break;
 301                 }
 302
 303                 case EX_EMBED: {
 304                         lex.next();
 305                         string const name = lex.getString();
 306                         filename.setInzipName(name);
 307                         filename.setEmbed(!name.empty());
 308                         break;
 309                 }
 310
 311                 case EX_DISPLAY: {
 312                         lex.next();
 313                         string const name = lex.getString();
 314                         display = external::displayTranslator().find(name);
 315                         break;
 316                 }
 317
 318                 case EX_LYXSCALE:
 319                         lex.next();
 320                         lyxscale = lex.getInteger();
 321                         break;
 322
 323                 case EX_DRAFT:
 324                         draft = true;
 325                         break;
 326
 327                 case EX_BOUNDINGBOX:
 328                         lex.next();
 329                         clipdata.bbox.xl = lex.getInteger();
 330                         lex.next();
 331                         clipdata.bbox.yb = lex.getInteger();
 332                         lex.next();
 333                         clipdata.bbox.xr = lex.getInteger();
 334                         lex.next();
 335                         clipdata.bbox.yt = lex.getInteger();
 336                         break;
 337
 338                 case EX_CLIP:
 339                         clipdata.clip = true;
 340                         break;
 341
 342                 case EX_EXTRA: {
 343                         lex.next();
 344                         string const name = lex.getString();
 345                         lex.next();
 346                         extradata.set(name, lex.getString());
 347                         break;
 348                 }
 349
 350                 case EX_HEIGHT:
 351                         lex.next();
 352                         resizedata.height = Length(lex.getString());
 353                         break;
 354
 355                 case EX_KEEPASPECTRATIO:
 356                         resizedata.keepAspectRatio = true;
 357                         break;
 358
 359                 case EX_ROTATEANGLE:
 360                         lex.next();
 361                         rotationdata.angle = lex.getString();
 362                         break;
 363
 364                 case EX_ROTATEORIGIN:
 365                         lex.next();
 366                         rotationdata.origin(lex.getString());
 367                         break;
 368
 369                 case EX_SCALE:
 370                         lex.next();
 371                         resizedata.scale = lex.getString();
 372                         break;
 373
 374                 case EX_WIDTH:
 375                         lex.next();
 376                         resizedata.width = Length(lex.getString());
 377                         break;
 378
 379                 case EX_END:
 380                         found_end = true;
 381                         break;
 382
 383                 default:
 384                         lex.printError("ExternalInset::read: Wrong tag: $$Token");
 385                         read_error = true;
 386                         break;
 387                 }
 388
 389                 if (found_end || read_error)
 390                         break;
 391         }
 392
 393         if (!found_end)
 394                 lex.printError("ExternalInsetParams::read: Missing \\end_inset.");
 395
 396         // This is a trick to make sure that the data are self-consistent.
 397         settemplate(templatename_);
 398
 399         if (lyxerr.debugging(Debug::EXTERNAL)) {
 400                 lyxerr  << "InsetExternalParams::read:\n";
 401                 write(buffer, lyxerr);
 402         }
 403
 404         return !read_error;
 405 }
 406
 407
 408 InsetExternal::InsetExternal()
 409         : renderer_(new RenderButton)
 410 {}
 411
 412
 413 InsetExternal::InsetExternal(InsetExternal const & other)
 414         : Inset(other),
 415           boost::signals::trackable(),
 416           params_(other.params_),
 417           renderer_(other.renderer_->clone(this))
 418 {}
 419
 420
 421 Inset * InsetExternal::clone() const
 422 {
 423         return new InsetExternal(*this);
 424 }
 425
 426
 427 InsetExternal::~InsetExternal()
 428 {
 429         InsetExternalMailer(*this).hideDialog();
 430 }
 431
 432
 433 void InsetExternal::statusChanged() const
 434 {
 435         updateFrontend();
 436 }
 437
 438
 439 void InsetExternal::doDispatch(Cursor & cur, FuncRequest & cmd)
 440 {
 441         switch (cmd.action) {
 442
 443         case LFUN_EXTERNAL_EDIT: {
 444                 InsetExternalParams p;
 445                 InsetExternalMailer::string2params(to_utf8(cmd.argument()), buffer(), p);
 446                 external::editExternal(p, buffer());
 447                 break;
 448         }
 449
 450         case LFUN_INSET_MODIFY: {
 451                 InsetExternalParams p;
 452                 InsetExternalMailer::string2params(to_utf8(cmd.argument()), buffer(), p);
 453                 if (!p.filename.empty()) {
 454                         try {
 455                                 p.filename.enable(buffer().embedded(), &buffer());
 456                         } catch (ExceptionMessage const & message) {
 457                                 Alert::error(message.title_, message.details_);
 458                                 // do not set parameter if an error happens
 459                                 break;
 460                         }
 461                 }
 462                 setParams(p);
 463                 break;
 464         }
 465
 466         case LFUN_INSET_DIALOG_UPDATE:
 467                 InsetExternalMailer(*this).updateDialog(&cur.bv());
 468                 break;
 469
 470         case LFUN_MOUSE_RELEASE:
 471                 if (!cur.selection())
 472                         InsetExternalMailer(*this).showDialog(&cur.bv());
 473                 break;
 474
 475         default:
 476                 Inset::doDispatch(cur, cmd);
 477         }
 478 }
 479
 480
 481 bool InsetExternal::getStatus(Cursor & cur, FuncRequest const & cmd,
 482                 FuncStatus & flag) const
 483 {
 484         switch (cmd.action) {
 485
 486         case LFUN_EXTERNAL_EDIT:
 487         case LFUN_INSET_MODIFY:
 488         case LFUN_INSET_DIALOG_UPDATE:
 489                 flag.enabled(true);
 490                 return true;
 491
 492         default:
 493                 return Inset::getStatus(cur, cmd, flag);
 494         }
 495 }
 496
 497
 498 void InsetExternal::registerEmbeddedFiles(Buffer const & buffer,
 499         EmbeddedFileList & files) const
 500 {
 501         files.registerFile(params_.filename, this, buffer);
 502 }
 503
 504
 505 void InsetExternal::updateEmbeddedFile(Buffer const & buf,
 506         EmbeddedFile const & file)
 507 {
 508         // when embedding is enabled, change of embedding status leads to actions
 509         EmbeddedFile temp = file;
 510         temp.enable(buf.embedded(), &buf);
 511         // this will not be set if an exception is thorwn in enable()
 512         params_.filename = temp;
 513 }
 514
 515
 516 void InsetExternal::edit(Cursor & cur, bool, EntryDirection)
 517 {
 518         InsetExternalMailer(*this).showDialog(&cur.bv());
 519 }
 520
 521
 522 void InsetExternal::metrics(MetricsInfo & mi, Dimension & dim) const
 523 {
 524         renderer_->metrics(mi, dim);
 525 }
 526
 527
 528 void InsetExternal::draw(PainterInfo & pi, int x, int y) const
 529 {
 530         renderer_->draw(pi, x, y);
 531 }
 532
 533
 534 namespace {
 535
 536 enum RenderType {
 537         RENDERBUTTON,
 538         RENDERGRAPHIC,
 539         RENDERPREVIEW
 540 };
 541
 542
 543 RenderType getRenderType(InsetExternalParams const & p)
 544 {
 545         if (!external::getTemplatePtr(p) ||
 546             p.filename.empty() ||
 547             p.display == external::NoDisplay)
 548                 return RENDERBUTTON;
 549
 550         if (p.display == external::PreviewDisplay) {
 551                 if (RenderPreview::status() != LyXRC::PREVIEW_OFF)
 552                         return RENDERPREVIEW;
 553                 return RENDERBUTTON;
 554         }
 555
 556         if (p.display == external::DefaultDisplay &&
 557             lyxrc.display_graphics == graphics::NoDisplay)
 558                 return RENDERBUTTON;
 559         return RENDERGRAPHIC;
 560 }
 561
 562
 563 graphics::Params get_grfx_params(InsetExternalParams const & eparams)
 564 {
 565         graphics::Params gparams;
 566
 567         gparams.filename = eparams.filename.availableFile();
 568         gparams.icon = eparams.filename.embedded() ? "pin.png" : "";
 569         gparams.scale = eparams.lyxscale;
 570         if (eparams.clipdata.clip)
 571                 gparams.bb = eparams.clipdata.bbox;
 572         gparams.angle = convert<double>(eparams.rotationdata.adjAngle());
 573
 574         switch (eparams.display) {
 575         case external::DefaultDisplay:
 576                 gparams.display = graphics::DefaultDisplay;
 577                 break;
 578         case external::MonochromeDisplay:
 579                 gparams.display = graphics::MonochromeDisplay;
 580                 break;
 581         case external::GrayscaleDisplay:
 582                 gparams.display = graphics::GrayscaleDisplay;
 583                 break;
 584         case external::ColorDisplay:
 585                 gparams.display = graphics::ColorDisplay;
 586                 break;
 587         case external::NoDisplay:
 588                 gparams.display = graphics::NoDisplay;
 589                 break;
 590         default:
 591                 BOOST_ASSERT(false);
 592         }
 593         if (gparams.display == graphics::DefaultDisplay)
 594                 gparams.display = graphics::DisplayType(lyxrc.display_graphics);
 595         // Override the above if we're not using a gui
 596         if (!use_gui)
 597                 gparams.display = graphics::NoDisplay;
 598
 599         return gparams;
 600 }
 601
 602
 603 docstring screenLabel(InsetExternalParams const & params,
 604                             Buffer const & buffer)
 605 {
 606         external::Template const * const ptr =
 607                 external::getTemplatePtr(params);
 608         if (!ptr)
 609                 // FIXME UNICODE
 610                 return bformat((_("External template %1$s is not installed")),
 611                                         from_utf8(params.templatename()));
 612         // FIXME UNICODE
 613         docstring gui = _(ptr->guiName);
 614         return from_utf8(external::doSubstitution(params, buffer,
 615                                 to_utf8(gui), false));
 616 }
 617
 618 } // namespace anon
 619
 620
 621 static bool isPreviewWanted(InsetExternalParams const & params)
 622 {
 623         return params.display == external::PreviewDisplay &&
 624                 params.filename.isReadableFile();
 625 }
 626
 627
 628 static docstring latexString(InsetExternal const & inset)
 629 {
 630         odocstringstream os;
 631         // We don't need to set runparams.encoding since it is not used by
 632         // latex().
 633         OutputParams runparams(0);
 634         runparams.flavor = OutputParams::LATEX;
 635         inset.latex(os, runparams);
 636         return os.str();
 637 }
 638
 639
 640 static void add_preview_and_start_loading(RenderMonitoredPreview & renderer,
 641                                    InsetExternal const & inset,
 642                                    Buffer const & buffer)
 643 {
 644         InsetExternalParams const & params = inset.params();
 645
 646         if (RenderPreview::status() != LyXRC::PREVIEW_OFF &&
 647             isPreviewWanted(params)) {
 648                 renderer.setAbsFile(params.filename);
 649                 docstring const snippet = latexString(inset);
 650                 renderer.addPreview(snippet, buffer);
 651                 renderer.startLoading(buffer);
 652         }
 653 }
 654
 655
 656 InsetExternalParams const & InsetExternal::params() const
 657 {
 658         return params_;
 659 }
 660
 661
 662 void InsetExternal::setParams(InsetExternalParams const & p)
 663 {
 664         params_ = p;
 665
 666         // Subsequent calls to the InsetExternal::Params default constructor
 667         // will use this.
 668         defaultTemplateName = params_.templatename();
 669
 670         switch (getRenderType(params_)) {
 671         case RENDERBUTTON: {
 672                 RenderButton * button_ptr = renderer_->asButton();
 673                 if (!button_ptr) {
 674                         renderer_.reset(new RenderButton);
 675                         button_ptr = renderer_->asButton();
 676                 }
 677
 678                 button_ptr->update(screenLabel(params_, buffer()), true);
 679                 break;
 680         }
 681
 682         case RENDERGRAPHIC: {
 683                 RenderGraphic * graphic_ptr = renderer_->asGraphic();
 684                 if (!graphic_ptr) {
 685                         renderer_.reset(new RenderGraphic(this));
 686                         graphic_ptr = renderer_->asGraphic();
 687                 }
 688
 689                 graphic_ptr->update(get_grfx_params(params_));
 690
 691                 break;
 692         }
 693
 694         case RENDERPREVIEW: {
 695                 RenderMonitoredPreview * preview_ptr =
 696                         renderer_->asMonitoredPreview();
 697                 if (!preview_ptr) {
 698                         renderer_.reset(new RenderMonitoredPreview(this));
 699                         preview_ptr = renderer_->asMonitoredPreview();
 700                         preview_ptr->fileChanged(
 701                                 boost::bind(&InsetExternal::fileChanged, this));
 702                 }
 703
 704                 if (preview_ptr->monitoring())
 705                         preview_ptr->stopMonitoring();
 706                 add_preview_and_start_loading(*preview_ptr, *this, buffer());
 707
 708                 break;
 709         }
 710         }
 711 }
 712
 713
 714 void InsetExternal::fileChanged() const
 715 {
 716         Buffer const * const buffer = updateFrontend();
 717         if (!buffer)
 718                 return;
 719
 720         RenderMonitoredPreview * const ptr = renderer_->asMonitoredPreview();
 721         BOOST_ASSERT(ptr);
 722
 723         ptr->removePreview(*buffer);
 724         add_preview_and_start_loading(*ptr, *this, *buffer);
 725 }
 726
 727
 728 void InsetExternal::write(ostream & os) const
 729 {
 730         params_.write(buffer(), os);
 731 }
 732
 733
 734 void InsetExternal::read(Lexer & lex)
 735 {
 736         InsetExternalParams params;
 737         if (params.read(buffer(), lex)) {
 738                 // exception handling is not needed as long as embedded files are in place.
 739                 params.filename.enable(buffer().embedded(), &buffer());
 740                 setParams(params);
 741         }
 742 }
 743
 744
 745 int InsetExternal::latex(odocstream & os, OutputParams const & runparams) const
 746 {
 747         if (params_.draft) {
 748                 // FIXME UNICODE
 749                 os << "\\fbox{\\ttfamily{}"
 750                    << from_utf8(params_.filename.outputFilename(buffer().filePath()))
 751                    << "}\n";
 752                 return 1;
 753         }
 754
 755         // "nice" means that the buffer is exported to LaTeX format but not
 756         // run through the LaTeX compiler.
 757         // If we're running through the LaTeX compiler, we should write the
 758         // generated files in the buffer's temporary directory.
 759         bool const external_in_tmpdir = !runparams.nice;
 760         bool const dryrun = runparams.dryrun || runparams.inComment;
 761
 762         // If the template has specified a PDFLaTeX output, then we try and
 763         // use that.
 764         if (runparams.flavor == OutputParams::PDFLATEX) {
 765                 external::Template const * const et_ptr =
 766                         external::getTemplatePtr(params_);
 767                 if (!et_ptr)
 768                         return 0;
 769                 external::Template const & et = *et_ptr;
 770
 771                 external::Template::Formats::const_iterator cit =
 772                         et.formats.find("PDFLaTeX");
 773
 774                 if (cit != et.formats.end()) {
 775                         return external::writeExternal(params_, "PDFLaTeX",
 776                                                        buffer(), os,
 777                                                        *(runparams.exportdata),
 778                                                        external_in_tmpdir,
 779                                                        dryrun);
 780                 }
 781         }
 782
 783         return external::writeExternal(params_, "LaTeX", buffer(), os,
 784                                        *(runparams.exportdata),
 785                                        external_in_tmpdir,
 786                                        dryrun);
 787 }
 788
 789
 790 int InsetExternal::plaintext(odocstream & os,
 791                              OutputParams const & runparams) const
 792 {
 793         os << '\n'; // output external material on a new line
 794         external::writeExternal(params_, "Ascii", buffer(), os,
 795                                 *(runparams.exportdata), false,
 796                                 runparams.dryrun || runparams.inComment);
 797         return PLAINTEXT_NEWLINE;
 798 }
 799
 800
 801 int InsetExternal::docbook(odocstream & os,
 802                            OutputParams const & runparams) const
 803 {
 804         return external::writeExternal(params_, "DocBook", buffer(), os,
 805                                        *(runparams.exportdata), false,
 806                                        runparams.dryrun || runparams.inComment);
 807 }
 808
 809
 810 void InsetExternal::validate(LaTeXFeatures & features) const
 811 {
 812         if (params_.draft)
 813                 return;
 814
 815         external::Template const * const et_ptr =
 816                 external::getTemplatePtr(params_);
 817         if (!et_ptr)
 818                 return;
 819         external::Template const & et = *et_ptr;
 820
 821         string format;
 822         switch (features.runparams().flavor) {
 823         case OutputParams::LATEX:
 824                 format = "LaTeX";
 825                 break;
 826         case OutputParams::PDFLATEX:
 827                 format = "PDFLaTeX";
 828                 break;
 829         case OutputParams::XML:
 830                 format = "DocBook";
 831                 break;
 832         }
 833         external::Template::Formats::const_iterator cit =
 834                 et.formats.find(format);
 835         if (cit == et.formats.end())
 836                 return;
 837
 838         // FIXME: We don't need that always
 839         features.require("lyxdot");
 840
 841         vector<string>::const_iterator it  = cit->second.requirements.begin();
 842         vector<string>::const_iterator end = cit->second.requirements.end();
 843         for (; it != end; ++it)
 844                 features.require(*it);
 845
 846         external::TemplateManager & etm = external::TemplateManager::get();
 847
 848         it  = cit->second.preambleNames.begin();
 849         end = cit->second.preambleNames.end();
 850         for (; it != end; ++it) {
 851                 string const preamble = etm.getPreambleDefByName(*it);
 852                 if (!preamble.empty())
 853                         features.addPreambleSnippet(preamble);
 854         }
 855 }
 856
 857
 858 //
 859 // preview stuff
 860 //
 861
 862 void InsetExternal::addPreview(graphics::PreviewLoader & ploader) const
 863 {
 864         RenderMonitoredPreview * const ptr = renderer_->asMonitoredPreview();
 865         if (!ptr)
 866                 return;
 867
 868         if (isPreviewWanted(params())) {
 869                 ptr->setAbsFile(params_.filename);
 870                 docstring const snippet = latexString(*this);
 871                 ptr->addPreview(snippet, ploader);
 872         }
 873 }
 874
 875
 876 /// Mailer stuff
 877
 878 string const InsetExternalMailer::name_("external");
 879
 880 InsetExternalMailer::InsetExternalMailer(InsetExternal & inset)
 881         : inset_(inset)
 882 {}
 883
 884
 885 string const InsetExternalMailer::inset2string(Buffer const & buffer) const
 886 {
 887         return params2string(inset_.params(), buffer);
 888 }
 889
 890
 891 void InsetExternalMailer::string2params(string const & in,
 892                                         Buffer const & buffer,
 893                                         InsetExternalParams & params)
 894 {
 895         params = InsetExternalParams();
 896         if (in.empty())
 897                 return;
 898
 899         istringstream data(in);
 900         Lexer lex(0,0);
 901         lex.setStream(data);
 902
 903         string name;
 904         lex >> name;
 905         if (!lex || name != name_)
 906                 return print_mailer_error("InsetExternalMailer", in, 1, name_);
 907
 908         // This is part of the inset proper that is usually swallowed
 909         // by Text::readInset
 910         string id;
 911         lex >> id;
 912         if (!lex || id != "External")
 913                 return print_mailer_error("InsetBoxMailer", in, 2, "External");
 914
 915         params.read(buffer, lex);
 916 }
 917
 918
 919 string const
 920 InsetExternalMailer::params2string(InsetExternalParams const & params,
 921                                    Buffer const & buffer)
 922 {
 923         ostringstream data;
 924         data << name_ << ' ';
 925         params.write(buffer, data);
 926         data << "\\end_inset\n";
 927         return data.str();
 928 }
 929
 930 } // namespace lyx