src/insets/InsetGraphics.cpp

   1 /**
   2  * \file InsetGraphics.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Baruch Even
   7  * \author Herbert Voß
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 /*
  13 TODO
  14
  15     * What advanced features the users want to do?
  16       Implement them in a non latex dependent way, but a logical way.
  17       LyX should translate it to latex or any other fitting format.
  18     * When loading, if the image is not found in the expected place, try
  19       to find it in the clipart, or in the same directory with the image.
  20     * The image choosing dialog could show thumbnails of the image formats
  21       it knows of, thus selection based on the image instead of based on
  22       filename.
  23     * Add support for the 'picins' package.
  24     * Add support for the 'picinpar' package.
  25 */
  26
  27 /* NOTES:
  28  * Fileformat:
  29  * The filename is kept in  the lyx file in a relative way, so as to allow
  30  * moving the document file and its images with no problem.
  31  *
  32  *
  33  * Conversions:
  34  *   Postscript output means EPS figures.
  35  *
  36  *   PDF output is best done with PDF figures if it's a direct conversion
  37  *   or PNG figures otherwise.
  38  *      Image format
  39  *      from        to
  40  *      EPS         epstopdf
  41  *      PS          ps2pdf
  42  *      JPG/PNG     direct
  43  *      PDF         direct
  44  *      others      PNG
  45  */
  46
  47 #include <config.h>
  48
  49 #include "insets/InsetGraphics.h"
  50 #include "insets/RenderGraphic.h"
  51
  52 #include "Buffer.h"
  53 #include "BufferView.h"
  54 #include "Converter.h"
  55 #include "Cursor.h"
  56 #include "DispatchResult.h"
  57 #include "ErrorList.h"
  58 #include "Exporter.h"
  59 #include "Format.h"
  60 #include "FuncRequest.h"
  61 #include "FuncStatus.h"
  62 #include "InsetIterator.h"
  63 #include "LaTeXFeatures.h"
  64 #include "Length.h"
  65 #include "Lexer.h"
  66 #include "MetricsInfo.h"
  67 #include "Mover.h"
  68 #include "OutputParams.h"
  69 #include "sgml.h"
  70 #include "TocBackend.h"
  71
  72 #include "frontends/alert.h"
  73 #include "frontends/Application.h"
  74
  75 #include "support/convert.h"
  76 #include "support/debug.h"
  77 #include "support/docstream.h"
  78 #include "support/ExceptionMessage.h"
  79 #include "support/filetools.h"
  80 #include "support/gettext.h"
  81 #include "support/lyxlib.h"
  82 #include "support/lstrings.h"
  83 #include "support/os.h"
  84 #include "support/Systemcall.h"
  85
  86 #include <boost/tuple/tuple.hpp>
  87
  88 #include <algorithm>
  89 #include <sstream>
  90
  91 using namespace std;
  92 using namespace lyx::support;
  93
  94 namespace lyx {
  95
  96 namespace Alert = frontend::Alert;
  97
  98 namespace {
  99
 100 /// Find the most suitable image format for images in \p format
 101 /// Note that \p format may be unknown (i. e. an empty string)
 102 string findTargetFormat(string const & format, OutputParams const & runparams)
 103 {
 104         // Are we using latex or XeTeX/pdflatex?
 105         if (runparams.flavor == OutputParams::PDFLATEX
 106             || runparams.flavor == OutputParams::XETEX) {
 107                 LYXERR(Debug::GRAPHICS, "findTargetFormat: PDF mode");
 108                 Format const * const f = formats.getFormat(format);
 109                 // Convert vector graphics to pdf
 110                 if (f && f->vectorFormat())
 111                         return "pdf";
 112                 // pdflatex can use jpeg, png and pdf directly
 113                 if (format == "jpg")
 114                         return format;
 115                 // Convert everything else to png
 116                 return "png";
 117         }
 118         // for HTML, we leave the known formats and otherwise convert to png
 119         if (runparams.flavor == OutputParams::HTML) {
 120                 if (format == "jpg" || format == "png" || format == "gif")
 121                         return format;
 122                 return "png";
 123         }
 124         // If it's postscript, we always do eps.
 125         LYXERR(Debug::GRAPHICS, "findTargetFormat: PostScript mode");
 126         if (format != "ps")
 127                 // any other than ps is changed to eps
 128                 return "eps";
 129         // let ps untouched
 130         return format;
 131 }
 132
 133
 134 void readInsetGraphics(Lexer & lex, string const & bufpath,
 135         InsetGraphicsParams & params)
 136 {
 137         bool finished = false;
 138
 139         while (lex.isOK() && !finished) {
 140                 lex.next();
 141
 142                 string const token = lex.getString();
 143                 LYXERR(Debug::GRAPHICS, "Token: '" << token << '\'');
 144
 145                 if (token.empty())
 146                         continue;
 147
 148                 if (token == "\\end_inset") {
 149                         finished = true;
 150                 } else {
 151                         if (!params.Read(lex, token, bufpath))
 152                                 lyxerr << "Unknown token, "
 153                                        << token
 154                                        << ", skipping."
 155                                        << endl;
 156                 }
 157         }
 158 }
 159
 160 } // namespace anon
 161
 162
 163 InsetGraphics::InsetGraphics(Buffer & buf)
 164         : graphic_label(sgml::uniqueID(from_ascii("graph"))),
 165           graphic_(new RenderGraphic(this))
 166 {
 167         Inset::setBuffer(buf);
 168 }
 169
 170
 171 InsetGraphics::InsetGraphics(InsetGraphics const & ig)
 172         : Inset(ig),
 173           graphic_label(sgml::uniqueID(from_ascii("graph"))),
 174           graphic_(new RenderGraphic(*ig.graphic_, this))
 175 {
 176         setParams(ig.params());
 177 }
 178
 179
 180 Inset * InsetGraphics::clone() const
 181 {
 182         return new InsetGraphics(*this);
 183 }
 184
 185
 186 InsetGraphics::~InsetGraphics()
 187 {
 188         hideDialogs("graphics", this);
 189         delete graphic_;
 190 }
 191
 192
 193 void InsetGraphics::doDispatch(Cursor & cur, FuncRequest & cmd)
 194 {
 195         switch (cmd.action) {
 196         case LFUN_INSET_EDIT: {
 197                 InsetGraphicsParams p = params();
 198                 if (!cmd.argument().empty())
 199                         string2params(to_utf8(cmd.argument()), buffer(), p);
 200                 editGraphics(p);
 201                 break;
 202         }
 203
 204         case LFUN_INSET_MODIFY: {
 205                 InsetGraphicsParams p;
 206                 string2params(to_utf8(cmd.argument()), buffer(), p);
 207                 if (p.filename.empty()) {
 208                         cur.noUpdate();
 209                         break;
 210                 }
 211
 212                 setParams(p);
 213                 // if the inset is part of a graphics group, all the
 214                 // other members should be updated too.
 215                 if (!params_.groupId.empty())
 216                         graphics::unifyGraphicsGroups(buffer(),
 217                                                       to_utf8(cmd.argument()));
 218                 break;
 219         }
 220
 221         case LFUN_INSET_DIALOG_UPDATE:
 222                 cur.bv().updateDialog("graphics", params2string(params(), buffer()));
 223                 break;
 224
 225         case LFUN_GRAPHICS_RELOAD:
 226                 graphic_->reload();
 227                 break;
 228
 229         default:
 230                 Inset::doDispatch(cur, cmd);
 231                 break;
 232         }
 233 }
 234
 235
 236 bool InsetGraphics::getStatus(Cursor & cur, FuncRequest const & cmd,
 237                 FuncStatus & flag) const
 238 {
 239         switch (cmd.action) {
 240         case LFUN_INSET_EDIT:
 241         case LFUN_INSET_MODIFY:
 242         case LFUN_INSET_DIALOG_UPDATE:
 243         case LFUN_GRAPHICS_RELOAD:
 244                 flag.setEnabled(true);
 245                 return true;
 246
 247         default:
 248                 return Inset::getStatus(cur, cmd, flag);
 249         }
 250 }
 251
 252
 253 bool InsetGraphics::showInsetDialog(BufferView * bv) const
 254 {
 255         bv->showDialog("graphics", params2string(params(), bv->buffer()),
 256                 const_cast<InsetGraphics *>(this));
 257         return true;
 258 }
 259
 260
 261
 262 void InsetGraphics::metrics(MetricsInfo & mi, Dimension & dim) const
 263 {
 264         graphic_->metrics(mi, dim);
 265 }
 266
 267
 268 void InsetGraphics::draw(PainterInfo & pi, int x, int y) const
 269 {
 270         graphic_->draw(pi, x, y);
 271 }
 272
 273
 274 void InsetGraphics::write(ostream & os) const
 275 {
 276         os << "Graphics\n";
 277         params().Write(os, buffer());
 278 }
 279
 280
 281 void InsetGraphics::read(Lexer & lex)
 282 {
 283         lex.setContext("InsetGraphics::read");
 284         //lex >> "Graphics";
 285         readInsetGraphics(lex, buffer().filePath(), params_);
 286         graphic_->update(params().as_grfxParams());
 287 }
 288
 289
 290 string InsetGraphics::createLatexOptions() const
 291 {
 292         // Calculate the options part of the command, we must do it to a string
 293         // stream since we might have a trailing comma that we would like to remove
 294         // before writing it to the output stream.
 295         ostringstream options;
 296         if (!params().bb.empty())
 297             options << "bb=" << rtrim(params().bb) << ',';
 298         if (params().draft)
 299             options << "draft,";
 300         if (params().clip)
 301             options << "clip,";
 302         ostringstream size;
 303         double const scl = convert<double>(params().scale);
 304         if (!params().scale.empty() && !float_equal(scl, 0.0, 0.05)) {
 305                 if (!float_equal(scl, 100.0, 0.05))
 306                         size << "scale=" << scl / 100.0 << ',';
 307         } else {
 308                 if (!params().width.zero())
 309                         size << "width=" << params().width.asLatexString() << ',';
 310                 if (!params().height.zero())
 311                         size << "height=" << params().height.asLatexString() << ',';
 312                 if (params().keepAspectRatio)
 313                         size << "keepaspectratio,";
 314         }
 315         if (params().scaleBeforeRotation && !size.str().empty())
 316                 options << size.str();
 317
 318         // Make sure rotation angle is not very close to zero;
 319         // a float can be effectively zero but not exactly zero.
 320         if (!params().rotateAngle.empty()
 321                 && !float_equal(convert<double>(params().rotateAngle), 0.0, 0.001)) {
 322             options << "angle=" << params().rotateAngle << ',';
 323             if (!params().rotateOrigin.empty()) {
 324                 options << "origin=" << params().rotateOrigin[0];
 325                 if (contains(params().rotateOrigin,"Top"))
 326                     options << 't';
 327                 else if (contains(params().rotateOrigin,"Bottom"))
 328                     options << 'b';
 329                 else if (contains(params().rotateOrigin,"Baseline"))
 330                     options << 'B';
 331                 options << ',';
 332             }
 333         }
 334         if (!params().scaleBeforeRotation && !size.str().empty())
 335                 options << size.str();
 336
 337         if (!params().special.empty())
 338             options << params().special << ',';
 339
 340         string opts = options.str();
 341         // delete last ','
 342         if (suffixIs(opts, ','))
 343                 opts = opts.substr(0, opts.size() - 1);
 344
 345         return opts;
 346 }
 347
 348
 349 docstring InsetGraphics::toDocbookLength(Length const & len) const
 350 {
 351         odocstringstream result;
 352         switch (len.unit()) {
 353                 case Length::SP: // Scaled point (65536sp = 1pt) TeX's smallest unit.
 354                         result << len.value() * 65536.0 * 72 / 72.27 << "pt";
 355                         break;
 356                 case Length::PT: // Point = 1/72.27in = 0.351mm
 357                         result << len.value() * 72 / 72.27 << "pt";
 358                         break;
 359                 case Length::BP: // Big point (72bp = 1in), also PostScript point
 360                         result << len.value() << "pt";
 361                         break;
 362                 case Length::DD: // Didot point = 1/72 of a French inch, = 0.376mm
 363                         result << len.value() * 0.376 << "mm";
 364                         break;
 365                 case Length::MM: // Millimeter = 2.845pt
 366                         result << len.value() << "mm";
 367                         break;
 368                 case Length::PC: // Pica = 12pt = 4.218mm
 369                         result << len.value() << "pc";
 370                         break;
 371                 case Length::CC: // Cicero = 12dd = 4.531mm
 372                         result << len.value() * 4.531 << "mm";
 373                         break;
 374                 case Length::CM: // Centimeter = 10mm = 2.371pc
 375                         result << len.value() << "cm";
 376                         break;
 377                 case Length::IN: // Inch = 25.4mm = 72.27pt = 6.022pc
 378                         result << len.value() << "in";
 379                         break;
 380                 case Length::EX: // Height of a small "x" for the current font.
 381                         // Obviously we have to compromise here. Any better ratio than 1.5 ?
 382                         result << len.value() / 1.5 << "em";
 383                         break;
 384                 case Length::EM: // Width of capital "M" in current font.
 385                         result << len.value() << "em";
 386                         break;
 387                 case Length::MU: // Math unit (18mu = 1em) for positioning in math mode
 388                         result << len.value() * 18 << "em";
 389                         break;
 390                 case Length::PTW: // Percent of TextWidth
 391                 case Length::PCW: // Percent of ColumnWidth
 392                 case Length::PPW: // Percent of PageWidth
 393                 case Length::PLW: // Percent of LineWidth
 394                 case Length::PTH: // Percent of TextHeight
 395                 case Length::PPH: // Percent of Paper
 396                         // Sigh, this will go wrong.
 397                         result << len.value() << "%";
 398                         break;
 399                 default:
 400                         result << len.asDocstring();
 401                         break;
 402         }
 403         return result.str();
 404 }
 405
 406
 407 docstring InsetGraphics::createDocBookAttributes() const
 408 {
 409         // Calculate the options part of the command, we must do it to a string
 410         // stream since we copied the code from createLatexParams() ;-)
 411
 412         // FIXME: av: need to translate spec -> Docbook XSL spec
 413         // (http://www.sagehill.net/docbookxsl/ImageSizing.html)
 414         // Right now it only works with my version of db2latex :-)
 415
 416         odocstringstream options;
 417         double const scl = convert<double>(params().scale);
 418         if (!params().scale.empty() && !float_equal(scl, 0.0, 0.05)) {
 419                 if (!float_equal(scl, 100.0, 0.05))
 420                         options << " scale=\""
 421                                 << static_cast<int>( (scl) + 0.5 )
 422                                 << "\" ";
 423         } else {
 424                 if (!params().width.zero()) {
 425                         options << " width=\"" << toDocbookLength(params().width)  << "\" ";
 426                 }
 427                 if (!params().height.zero()) {
 428                         options << " depth=\"" << toDocbookLength(params().height)  << "\" ";
 429                 }
 430                 if (params().keepAspectRatio) {
 431                         // This will be irrelevant unless both width and height are set
 432                         options << "scalefit=\"1\" ";
 433                 }
 434         }
 435
 436
 437         if (!params().special.empty())
 438                 options << from_ascii(params().special) << " ";
 439
 440         // trailing blanks are ok ...
 441         return options.str();
 442 }
 443
 444
 445 namespace {
 446
 447 enum GraphicsCopyStatus {
 448         SUCCESS,
 449         FAILURE,
 450         IDENTICAL_PATHS,
 451         IDENTICAL_CONTENTS
 452 };
 453
 454
 455 pair<GraphicsCopyStatus, FileName> const
 456 copyFileIfNeeded(FileName const & file_in, FileName const & file_out)
 457 {
 458         LYXERR(Debug::FILES, "Comparing " << file_in << " and " << file_out);
 459         unsigned long const checksum_in  = file_in.checksum();
 460         unsigned long const checksum_out = file_out.checksum();
 461
 462         if (checksum_in == checksum_out)
 463                 // Nothing to do...
 464                 return make_pair(IDENTICAL_CONTENTS, file_out);
 465
 466         Mover const & mover = getMover(formats.getFormatFromFile(file_in));
 467         bool const success = mover.copy(file_in, file_out);
 468         if (!success) {
 469                 // FIXME UNICODE
 470                 LYXERR(Debug::GRAPHICS,
 471                         to_utf8(bformat(_("Could not copy the file\n%1$s\n"
 472                                                            "into the temporary directory."),
 473                                                 from_utf8(file_in.absFilename()))));
 474         }
 475
 476         GraphicsCopyStatus status = success ? SUCCESS : FAILURE;
 477         return make_pair(status, file_out);
 478 }
 479
 480
 481 pair<GraphicsCopyStatus, FileName> const
 482 copyToDirIfNeeded(DocFileName const & file, string const & dir)
 483 {
 484         string const file_in = file.absFilename();
 485         string const only_path = onlyPath(file_in);
 486         if (rtrim(onlyPath(file_in) , "/") == rtrim(dir, "/"))
 487                 return make_pair(IDENTICAL_PATHS, file_in);
 488
 489         string mangled = file.mangledFilename();
 490         if (file.isZipped()) {
 491                 // We need to change _eps.gz to .eps.gz. The mangled name is
 492                 // still unique because of the counter in mangledFilename().
 493                 // We can't just call mangledFilename() with the zip
 494                 // extension removed, because base.eps and base.eps.gz may
 495                 // have different content but would get the same mangled
 496                 // name in this case.
 497                 string const base = removeExtension(file.unzippedFilename());
 498                 string::size_type const ext_len = file_in.length() - base.length();
 499                 mangled[mangled.length() - ext_len] = '.';
 500         }
 501         FileName const file_out(makeAbsPath(mangled, dir));
 502
 503         return copyFileIfNeeded(file, file_out);
 504 }
 505
 506
 507 string const stripExtensionIfPossible(string const & file, bool nice)
 508 {
 509         // Remove the extension so the LaTeX compiler will use whatever
 510         // is appropriate (when there are several versions in different
 511         // formats).
 512         // Do this only if we are not exporting for internal usage, because
 513         // pdflatex prefers png over pdf and it would pick up the png images
 514         // that we generate for preview.
 515         // This works only if the filename contains no dots besides
 516         // the just removed one. We can fool here by replacing all
 517         // dots with a macro whose definition is just a dot ;-)
 518         // The automatic format selection does not work if the file
 519         // name is escaped.
 520         string const latex_name = latex_path(file, EXCLUDE_EXTENSION);
 521         if (!nice || contains(latex_name, '"'))
 522                 return latex_name;
 523         return latex_path(removeExtension(file), PROTECT_EXTENSION, ESCAPE_DOTS);
 524 }
 525
 526
 527 string const stripExtensionIfPossible(string const & file, string const & to, bool nice)
 528 {
 529         // No conversion is needed. LaTeX can handle the graphic file as is.
 530         // This is true even if the orig_file is compressed.
 531         string const to_format = formats.getFormat(to)->extension();
 532         string const file_format = getExtension(file);
 533         // for latex .ps == .eps
 534         if (to_format == file_format ||
 535             (to_format == "eps" && file_format ==  "ps") ||
 536             (to_format ==  "ps" && file_format == "eps"))
 537                 return stripExtensionIfPossible(file, nice);
 538         return latex_path(file, EXCLUDE_EXTENSION);
 539 }
 540
 541 } // namespace anon
 542
 543
 544 string InsetGraphics::prepareFile(OutputParams const & runparams) const
 545 {
 546         // The following code depends on non-empty filenames
 547         if (params().filename.empty())
 548                 return string();
 549
 550         string const orig_file = params().filename.absFilename();
 551         // this is for dryrun and display purposes, do not use latexFilename
 552         string const rel_file = params().filename.relFilename(buffer().filePath());
 553
 554         // previewing source code, no file copying or file format conversion
 555         if (runparams.dryrun)
 556                 return stripExtensionIfPossible(rel_file, runparams.nice);
 557
 558         // The master buffer. This is useful when there are multiple levels
 559         // of include files
 560         Buffer const * masterBuffer = buffer().masterBuffer();
 561
 562         // Return the output name if we are inside a comment or the file does
 563         // not exist.
 564         // We are not going to change the extension or using the name of the
 565         // temporary file, the code is already complicated enough.
 566         if (runparams.inComment || !params().filename.isReadableFile())
 567                 return params().filename.outputFilename(masterBuffer->filePath());
 568
 569         // We place all temporary files in the master buffer's temp dir.
 570         // This is possible because we use mangled file names.
 571         // This is necessary for DVI export.
 572         string const temp_path = masterBuffer->temppath();
 573
 574         // temp_file will contain the file for LaTeX to act on if, for example,
 575         // we move it to a temp dir or uncompress it.
 576         FileName temp_file;
 577         GraphicsCopyStatus status;
 578         boost::tie(status, temp_file) =
 579                         copyToDirIfNeeded(params().filename, temp_path);
 580
 581         if (status == FAILURE)
 582                 return orig_file;
 583
 584         // a relative filename should be relative to the master buffer.
 585         // "nice" means that the buffer is exported to LaTeX format but not
 586         // run through the LaTeX compiler.
 587         string output_file = runparams.nice ?
 588                 params().filename.outputFilename(masterBuffer->filePath()) :
 589                 onlyFilename(temp_file.absFilename());
 590
 591         if (runparams.nice && !isValidLaTeXFilename(output_file)) {
 592                 frontend::Alert::warning(_("Invalid filename"),
 593                                          _("The following filename is likely to cause trouble "
 594                                            "when running the exported file through LaTeX: ") +
 595                                             from_utf8(output_file));
 596         }
 597
 598         FileName source_file = runparams.nice ? FileName(params().filename) : temp_file;
 599         string const tex_format = (runparams.flavor == OutputParams::LATEX) ?
 600                         "latex" : "pdflatex";
 601
 602         // If the file is compressed and we have specified that it
 603         // should not be uncompressed, then just return its name and
 604         // let LaTeX do the rest!
 605         if (params().filename.isZipped()) {
 606                 if (params().noUnzip) {
 607                         // We don't know whether latex can actually handle
 608                         // this file, but we can't check, because that would
 609                         // mean to unzip the file and thereby making the
 610                         // noUnzip parameter meaningless.
 611                         LYXERR(Debug::GRAPHICS, "\tpass zipped file to LaTeX.");
 612
 613                         FileName const bb_orig_file =
 614                                 FileName(changeExtension(orig_file, "bb"));
 615                         if (runparams.nice) {
 616                                 runparams.exportdata->addExternalFile(tex_format,
 617                                                 bb_orig_file,
 618                                                 changeExtension(output_file, "bb"));
 619                         } else {
 620                                 // LaTeX needs the bounding box file in the
 621                                 // tmp dir
 622                                 FileName bb_file =
 623                                         FileName(changeExtension(temp_file.absFilename(), "bb"));
 624                                 boost::tie(status, bb_file) =
 625                                         copyFileIfNeeded(bb_orig_file, bb_file);
 626                                 if (status == FAILURE)
 627                                         return orig_file;
 628                                 runparams.exportdata->addExternalFile(tex_format,
 629                                                 bb_file);
 630                         }
 631                         runparams.exportdata->addExternalFile(tex_format,
 632                                         source_file, output_file);
 633                         runparams.exportdata->addExternalFile("dvi",
 634                                         source_file, output_file);
 635                         // We can't strip the extension, because we don't know
 636                         // the unzipped file format
 637                         return latex_path(output_file, EXCLUDE_EXTENSION);
 638                 }
 639
 640                 FileName const unzipped_temp_file =
 641                         FileName(unzippedFileName(temp_file.absFilename()));
 642                 output_file = unzippedFileName(output_file);
 643                 source_file = FileName(unzippedFileName(source_file.absFilename()));
 644                 if (compare_timestamps(unzipped_temp_file, temp_file) > 0) {
 645                         // temp_file has been unzipped already and
 646                         // orig_file has not changed in the meantime.
 647                         temp_file = unzipped_temp_file;
 648                         LYXERR(Debug::GRAPHICS, "\twas already unzipped to " << temp_file);
 649                 } else {
 650                         // unzipped_temp_file does not exist or is too old
 651                         temp_file = unzipFile(temp_file);
 652                         LYXERR(Debug::GRAPHICS, "\tunzipped to " << temp_file);
 653                 }
 654         }
 655
 656         string const from = formats.getFormatFromFile(temp_file);
 657         if (from.empty())
 658                 LYXERR(Debug::GRAPHICS, "\tCould not get file format.");
 659
 660         string const to   = findTargetFormat(from, runparams);
 661         string const ext  = formats.extension(to);
 662         LYXERR(Debug::GRAPHICS, "\t we have: from " << from << " to " << to);
 663
 664         // We're going to be running the exported buffer through the LaTeX
 665         // compiler, so must ensure that LaTeX can cope with the graphics
 666         // file format.
 667
 668         LYXERR(Debug::GRAPHICS, "\tthe orig file is: " << orig_file);
 669
 670         if (from == to) {
 671                 // source and destination formats are the same
 672                 if (!runparams.nice && !FileName(temp_file).hasExtension(ext)) {
 673                         // The LaTeX compiler will not be able to determine
 674                         // the file format from the extension, so we must
 675                         // change it.
 676                         FileName const new_file =
 677                                 FileName(changeExtension(temp_file.absFilename(), ext));
 678                         if (temp_file.moveTo(new_file)) {
 679                                 temp_file = new_file;
 680                                 output_file = changeExtension(output_file, ext);
 681                                 source_file =
 682                                         FileName(changeExtension(source_file.absFilename(), ext));
 683                         } else {
 684                                 LYXERR(Debug::GRAPHICS, "Could not rename file `"
 685                                         << temp_file << "' to `" << new_file << "'.");
 686                         }
 687                 }
 688                 // The extension of temp_file might be != ext!
 689                 runparams.exportdata->addExternalFile(tex_format, source_file,
 690                                                       output_file);
 691                 runparams.exportdata->addExternalFile("dvi", source_file,
 692                                                       output_file);
 693                 return stripExtensionIfPossible(output_file, to, runparams.nice);
 694         }
 695
 696         // so the source and destination formats are different
 697         FileName const to_file = FileName(changeExtension(temp_file.absFilename(), ext));
 698         string const output_to_file = changeExtension(output_file, ext);
 699
 700         // Do we need to perform the conversion?
 701         // Yes if to_file does not exist or if temp_file is newer than to_file
 702         if (compare_timestamps(temp_file, to_file) < 0) {
 703                 // FIXME UNICODE
 704                 LYXERR(Debug::GRAPHICS,
 705                         to_utf8(bformat(_("No conversion of %1$s is needed after all"),
 706                                    from_utf8(rel_file))));
 707                 runparams.exportdata->addExternalFile(tex_format, to_file,
 708                                                       output_to_file);
 709                 runparams.exportdata->addExternalFile("dvi", to_file,
 710                                                       output_to_file);
 711                 return stripExtensionIfPossible(output_to_file, runparams.nice);
 712         }
 713
 714         LYXERR(Debug::GRAPHICS,"\tThe original file is " << orig_file << "\n"
 715                 << "\tA copy has been made and convert is to be called with:\n"
 716                 << "\tfile to convert = " << temp_file << '\n'
 717                 << "\t from " << from << " to " << to);
 718
 719         // FIXME (Abdel 12/08/06): Is there a need to show these errors?
 720         ErrorList el;
 721         if (theConverters().convert(&buffer(), temp_file, to_file, params().filename,
 722                                from, to, el,
 723                                Converters::try_default | Converters::try_cache)) {
 724                 runparams.exportdata->addExternalFile(tex_format,
 725                                 to_file, output_to_file);
 726                 runparams.exportdata->addExternalFile("dvi",
 727                                 to_file, output_to_file);
 728         }
 729
 730         return stripExtensionIfPossible(output_to_file, runparams.nice);
 731 }
 732
 733
 734 int InsetGraphics::latex(odocstream & os,
 735                          OutputParams const & runparams) const
 736 {
 737         // If there is no file specified or not existing,
 738         // just output a message about it in the latex output.
 739         LYXERR(Debug::GRAPHICS, "insetgraphics::latex: Filename = "
 740                 << params().filename.absFilename());
 741
 742         bool const file_exists = !params().filename.empty()
 743                         && params().filename.isReadableFile();
 744         string const message = file_exists ?
 745                 string() : string("bb = 0 0 200 100, draft, type=eps");
 746         // if !message.empty() then there was no existing file
 747         // "filename" found. In this case LaTeX
 748         // draws only a rectangle with the above bb and the
 749         // not found filename in it.
 750         LYXERR(Debug::GRAPHICS, "\tMessage = \"" << message << '\"');
 751
 752         // These variables collect all the latex code that should be before and
 753         // after the actual includegraphics command.
 754         string before;
 755         string after;
 756
 757         if (runparams.moving_arg)
 758                 before += "\\protect";
 759
 760         // We never use the starred form, we use the "clip" option instead.
 761         before += "\\includegraphics";
 762
 763         // Write the options if there are any.
 764         string const opts = createLatexOptions();
 765         LYXERR(Debug::GRAPHICS, "\tOpts = " << opts);
 766
 767         if (!opts.empty() && !message.empty())
 768                 before += ('[' + opts + ',' + message + ']');
 769         else if (!opts.empty() || !message.empty())
 770                 before += ('[' + opts + message + ']');
 771
 772         LYXERR(Debug::GRAPHICS, "\tBefore = " << before << "\n\tafter = " << after);
 773
 774         string latex_str = before + '{';
 775         // Convert the file if necessary.
 776         // Remove the extension so LaTeX will use whatever is appropriate
 777         // (when there are several versions in different formats)
 778         latex_str += prepareFile(runparams);
 779         latex_str += '}' + after;
 780         // FIXME UNICODE
 781         os << from_utf8(latex_str);
 782
 783         LYXERR(Debug::GRAPHICS, "InsetGraphics::latex outputting:\n" << latex_str);
 784         // Return how many newlines we issued.
 785         return int(count(latex_str.begin(), latex_str.end(),'\n'));
 786 }
 787
 788
 789 int InsetGraphics::plaintext(odocstream & os, OutputParams const &) const
 790 {
 791         // No graphics in ascii output. Possible to use gifscii to convert
 792         // images to ascii approximation.
 793         // 1. Convert file to ascii using gifscii
 794         // 2. Read ascii output file and add it to the output stream.
 795         // at least we send the filename
 796         // FIXME UNICODE
 797         // FIXME: We have no idea what the encoding of the filename is
 798
 799         docstring const str = bformat(buffer().B_("Graphics file: %1$s"),
 800                                       from_utf8(params().filename.absFilename()));
 801         os << '<' << str << '>';
 802
 803         return 2 + str.size();
 804 }
 805
 806
 807 static int writeImageObject(char const * format, odocstream & os,
 808         OutputParams const & runparams, docstring const & graphic_label,
 809         docstring const & attributes)
 810 {
 811         if (runparams.flavor != OutputParams::XML)
 812                 os << "<![ %output.print." << format
 813                          << "; [" << endl;
 814
 815         os <<"<imageobject><imagedata fileref=\"&"
 816                  << graphic_label
 817                  << ";."
 818                  << format
 819                  << "\" "
 820                  << attributes;
 821
 822         if (runparams.flavor == OutputParams::XML)
 823                 os <<  " role=\"" << format << "\"/>" ;
 824         else
 825                 os << " format=\"" << format << "\">" ;
 826
 827         os << "</imageobject>";
 828
 829         if (runparams.flavor != OutputParams::XML)
 830                 os << endl << "]]>" ;
 831
 832         return runparams.flavor == OutputParams::XML ? 0 : 2;
 833 }
 834
 835
 836 // For explanation on inserting graphics into DocBook checkout:
 837 // http://en.tldp.org/LDP/LDP-Author-Guide/html/inserting-pictures.html
 838 // See also the docbook guide at http://www.docbook.org/
 839 int InsetGraphics::docbook(odocstream & os,
 840                            OutputParams const & runparams) const
 841 {
 842         // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
 843         // need to switch to MediaObject. However, for now this is sufficient and
 844         // easier to use.
 845         if (runparams.flavor == OutputParams::XML)
 846                 runparams.exportdata->addExternalFile("docbook-xml",
 847                                                       params().filename);
 848         else
 849                 runparams.exportdata->addExternalFile("docbook",
 850                                                       params().filename);
 851
 852         os << "<inlinemediaobject>";
 853
 854         int r = 0;
 855         docstring attributes = createDocBookAttributes();
 856         r += writeImageObject("png", os, runparams, graphic_label, attributes);
 857         r += writeImageObject("pdf", os, runparams, graphic_label, attributes);
 858         r += writeImageObject("eps", os, runparams, graphic_label, attributes);
 859         r += writeImageObject("bmp", os, runparams, graphic_label, attributes);
 860
 861         os << "</inlinemediaobject>";
 862         return r;
 863 }
 864
 865
 866 void InsetGraphics::validate(LaTeXFeatures & features) const
 867 {
 868         // If we have no image, we should not require anything.
 869         if (params().filename.empty())
 870                 return;
 871
 872         features.includeFile(graphic_label,
 873                              removeExtension(params().filename.absFilename()));
 874
 875         features.require("graphicx");
 876
 877         if (features.runparams().nice) {
 878                 Buffer const * masterBuffer = features.buffer().masterBuffer();
 879                 string const rel_file = removeExtension(
 880                         params().filename.relFilename(masterBuffer->filePath()));
 881                 if (contains(rel_file, "."))
 882                         features.require("lyxdot");
 883         }
 884 }
 885
 886
 887 bool InsetGraphics::setParams(InsetGraphicsParams const & p)
 888 {
 889         // If nothing is changed, just return and say so.
 890         if (params() == p && !p.filename.empty())
 891                 return false;
 892
 893         // Copy the new parameters.
 894         params_ = p;
 895
 896         // Update the display using the new parameters.
 897         graphic_->update(params().as_grfxParams());
 898
 899         // We have changed data, report it.
 900         return true;
 901 }
 902
 903
 904 InsetGraphicsParams const & InsetGraphics::params() const
 905 {
 906         return params_;
 907 }
 908
 909
 910 void InsetGraphics::editGraphics(InsetGraphicsParams const & p) const
 911 {
 912         formats.edit(buffer(), p.filename,
 913                      formats.getFormatFromFile(p.filename));
 914 }
 915
 916
 917 void InsetGraphics::addToToc(DocIterator const & cpit)
 918 {
 919         TocBackend & backend = buffer().tocBackend();
 920
 921         //FIXME UNICODE
 922         docstring const str = from_utf8(params_.filename.onlyFileName());
 923         backend.toc("graphics").push_back(TocItem(cpit, 0, str));
 924 }
 925
 926
 927 docstring InsetGraphics::contextMenu(BufferView const &, int, int) const
 928 {
 929         return from_ascii("context-graphics");
 930 }
 931
 932
 933 void InsetGraphics::string2params(string const & in, Buffer const & buffer,
 934         InsetGraphicsParams & params)
 935 {
 936         if (in.empty())
 937                 return;
 938
 939         istringstream data(in);
 940         Lexer lex;
 941         lex.setStream(data);
 942         lex.setContext("InsetGraphics::string2params");
 943         lex >> "graphics";
 944         params = InsetGraphicsParams();
 945         readInsetGraphics(lex, buffer.filePath(), params);
 946 }
 947
 948
 949 string InsetGraphics::params2string(InsetGraphicsParams const & params,
 950         Buffer const & buffer)
 951 {
 952         ostringstream data;
 953         data << "graphics" << ' ';
 954         params.Write(data, buffer);
 955         data << "\\end_inset\n";
 956         return data.str();
 957 }
 958
 959 namespace graphics {
 960
 961 void getGraphicsGroups(Buffer const & b, set<string> & ids)
 962 {
 963         Inset & inset = b.inset();
 964         InsetIterator it  = inset_iterator_begin(inset);
 965         InsetIterator const end = inset_iterator_end(inset);
 966         for (; it != end; ++it)
 967                 if (it->lyxCode() == GRAPHICS_CODE) {
 968                         InsetGraphics & ins = static_cast<InsetGraphics &>(*it);
 969                         InsetGraphicsParams inspar = ins.getParams();
 970                         if (!inspar.groupId.empty())
 971                                 ids.insert(inspar.groupId);
 972                 }
 973 }
 974
 975
 976 int countGroupMembers(Buffer const & b, string const & groupId)
 977 {
 978         int n = 0;
 979         if (groupId.empty())
 980                 return n;
 981         Inset & inset = b.inset();
 982         InsetIterator it = inset_iterator_begin(inset);
 983         InsetIterator const end = inset_iterator_end(inset);
 984         for (; it != end; ++it)
 985                 if (it->lyxCode() == GRAPHICS_CODE) {
 986                         InsetGraphics & ins = static_cast<InsetGraphics &>(*it);
 987                         if (ins.getParams().groupId == groupId)
 988                                 ++n;
 989                 }
 990         return n;
 991 }
 992
 993
 994 string getGroupParams(Buffer const & b, string const & groupId)
 995 {
 996         if (groupId.empty())
 997                 return string();
 998         Inset & inset = b.inset();
 999         InsetIterator it  = inset_iterator_begin(inset);
1000         InsetIterator const end = inset_iterator_end(inset);
1001         for (; it != end; ++it)
1002                 if (it->lyxCode() == GRAPHICS_CODE) {
1003                         InsetGraphics & ins = static_cast<InsetGraphics &>(*it);
1004                         InsetGraphicsParams inspar = ins.getParams();
1005                         if (inspar.groupId == groupId) {
1006                                 InsetGraphicsParams tmp = inspar;
1007                                 tmp.filename.erase();
1008                                 return InsetGraphics::params2string(tmp, b);
1009                         }
1010                 }
1011         return string();
1012 }
1013
1014
1015 void unifyGraphicsGroups(Buffer & b, string const & argument)
1016 {
1017         InsetGraphicsParams params;
1018         InsetGraphics::string2params(argument, b, params);
1019
1020         b.undo().beginUndoGroup();
1021         Inset & inset = b.inset();
1022         InsetIterator it  = inset_iterator_begin(inset);
1023         InsetIterator const end = inset_iterator_end(inset);
1024         for (; it != end; ++it) {
1025                 if (it->lyxCode() == GRAPHICS_CODE) {
1026                         InsetGraphics & ins = static_cast<InsetGraphics &>(*it);
1027                         InsetGraphicsParams inspar = ins.getParams();
1028                         if (params.groupId == inspar.groupId) {
1029                                 b.undo().recordUndo(it);
1030                                 params.filename = inspar.filename;
1031                                 ins.setParams(params);
1032                         }
1033                 }
1034         }
1035         b.undo().endUndoGroup();
1036 }
1037
1038
1039 InsetGraphics * getCurrentGraphicsInset(Cursor const & cur)
1040 {
1041         Inset * instmp = &cur.inset();
1042         if (instmp->lyxCode() != GRAPHICS_CODE)
1043                 instmp = cur.nextInset();
1044         if (!instmp || instmp->lyxCode() != GRAPHICS_CODE)
1045                 return 0;
1046
1047         return static_cast<InsetGraphics *>(instmp);
1048 }
1049
1050 } // namespace graphics
1051
1052 } // namespace lyx