2 * \file insetgraphics.C
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
9 * Full author contact details are available in file CREDITS
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 * Add a way to roll the image file into the file format.
19 * When loading, if the image is not found in the expected place, try
20 to find it in the clipart, or in the same directory with the image.
21 * The image choosing dialog could show thumbnails of the image formats
22 it knows of, thus selection based on the image instead of based on
24 * Add support for the 'picins' package.
25 * Add support for the 'picinpar' package.
26 * Improve support for 'subfigure' - Allow to set the various options
32 * Current version is 1 (inset file format version), when changing it
33 * it should be changed in the Write() function when writing in one place
34 * and when reading one should change the version check and the error message.
35 * The filename is kept in the lyx file in a relative way, so as to allow
36 * moving the document file and its images with no problem.
40 * Postscript output means EPS figures.
42 * PDF output is best done with PDF figures if it's a direct conversion
43 * or PNG figures otherwise.
56 #include "insets/insetgraphics.h"
57 #include "insets/insetgraphicsParams.h"
59 #include "graphics/GraphicsLoader.h"
60 #include "graphics/GraphicsImage.h"
61 #include "graphics/GraphicsParams.h"
65 #include "BufferView.h"
66 #include "converter.h"
69 #include "funcrequest.h"
71 #include "LaTeXFeatures.h"
75 #include "frontends/Alert.h"
76 #include "frontends/Dialogs.h"
77 #include "frontends/font_metrics.h"
78 #include "frontends/LyXView.h"
79 #include "frontends/Painter.h"
81 #include "support/LAssert.h"
82 #include "support/filetools.h"
83 #include "support/lyxalgo.h" // lyx::count
84 #include "support/lyxlib.h" // float_equal
85 #include "support/path.h"
86 #include "support/systemcall.h"
87 #include "support/os.h"
89 #include <boost/weak_ptr.hpp>
90 #include <boost/bind.hpp>
91 #include <boost/signals/trackable.hpp>
92 #include "BoostFormat.h"
94 #include <algorithm> // For the std::max
96 extern string system_tempdir;
104 ///////////////////////////////////////////////////////////////////////////
105 int const VersionNumber = 1;
106 ///////////////////////////////////////////////////////////////////////////
108 // This function is a utility function
109 // ... that should be with ChangeExtension ...
111 string const RemoveExtension(string const & filename)
113 return ChangeExtension(filename, string());
117 string const uniqueID()
119 static unsigned int seed = 1000;
122 ost << "graph" << ++seed;
124 // Needed if we use lyxstring.
125 return STRCONV(ost.str());
129 string findTargetFormat(string const & suffix)
131 // lyxrc.pdf_mode means:
132 // Are we creating a PDF or a PS file?
133 // (Should actually mean, are we using latex or pdflatex).
134 if (lyxrc.pdf_mode) {
135 lyxerr[Debug::GRAPHICS] << "findTargetFormat: PDF mode\n";
136 if (contains(suffix, "ps") || suffix == "pdf")
138 if (suffix == "jpg") // pdflatex can use jpeg
140 return "png"; // and also png
142 // If it's postscript, we always do eps.
143 lyxerr[Debug::GRAPHICS] << "findTargetFormat: PostScript mode\n";
144 if (suffix != "ps") // any other than ps
145 return "eps"; // is changed to eps
146 return suffix; // let ps untouched
152 struct InsetGraphics::Cache : boost::signals::trackable
155 Cache(InsetGraphics &);
157 void update(string const & file_with_path);
164 unsigned long checksum;
166 boost::weak_ptr<BufferView> view;
170 InsetGraphics & parent_;
174 InsetGraphics::Cache::Cache(InsetGraphics & p)
175 : old_ascent(0), checksum(0), parent_(p)
177 loader.connect(boost::bind(&InsetGraphics::statusChanged, &parent_));
181 void InsetGraphics::Cache::update(string const & file_with_path)
183 lyx::Assert(!file_with_path.empty());
185 string const path = OnlyPath(file_with_path);
186 loader.reset(file_with_path, parent_.params().as_grfxParams(path));
190 InsetGraphics::InsetGraphics()
191 : graphic_label(uniqueID()),
192 cache_(new Cache(*this))
196 InsetGraphics::InsetGraphics(InsetGraphics const & ig,
197 string const & filepath,
199 : Inset(ig, same_id),
200 graphic_label(uniqueID()),
201 cache_(new Cache(*this))
203 setParams(ig.params(), filepath);
207 Inset * InsetGraphics::clone(Buffer const & buffer, bool same_id) const
209 return new InsetGraphics(*this, buffer.filePath(), same_id);
213 InsetGraphics::~InsetGraphics()
215 InsetGraphicsMailer mailer(*this);
220 dispatch_result InsetGraphics::localDispatch(FuncRequest const & cmd)
222 dispatch_result result = UNDISPATCHED;
224 switch (cmd.action) {
225 case LFUN_INSET_MODIFY: {
226 InsetGraphicsParams p;
227 InsetGraphicsMailer::string2params(cmd.argument, p);
228 if (p.filename.empty())
231 string const filepath = cmd.view()->buffer()->filePath();
232 setParams(p, filepath);
233 cmd.view()->updateInset(this, true);
238 case LFUN_INSET_DIALOG_UPDATE: {
239 InsetGraphicsMailer mailer(*this);
240 mailer.updateDialog();
253 string const InsetGraphics::statusMessage() const
255 using namespace grfx;
257 switch (cache_->loader.status()) {
259 return _("Not shown.");
261 return _("Loading...");
263 return _("Converting to loadable format...");
265 return _("Loaded into memory. Must now generate pixmap.");
267 return _("Scaling etc...");
269 return _("Ready to display");
271 return _("No file found!");
272 case ErrorConverting:
273 return _("Error converting to loadable format");
275 return _("Error loading file into memory");
276 case ErrorGeneratingPixmap:
277 return _("Error generating the pixmap");
279 return _("No image");
285 bool InsetGraphics::imageIsDrawable() const
287 if (!cache_->loader.image() || cache_->loader.status() != grfx::Ready)
290 return cache_->loader.image()->isDrawable();
294 int InsetGraphics::ascent(BufferView *, LyXFont const &) const
296 cache_->old_ascent = 50;
297 if (imageIsDrawable())
298 cache_->old_ascent = cache_->loader.image()->getHeight();
299 return cache_->old_ascent;
303 int InsetGraphics::descent(BufferView *, LyXFont const &) const
309 int InsetGraphics::width(BufferView *, LyXFont const & font) const
311 if (imageIsDrawable())
312 return cache_->loader.image()->getWidth() + 2 * TEXT_TO_INSET_OFFSET;
316 LyXFont msgFont(font);
317 msgFont.setFamily(LyXFont::SANS_FAMILY);
319 string const justname = OnlyFilename (params().filename);
320 if (!justname.empty()) {
321 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
322 font_width = font_metrics::width(justname, msgFont);
325 string const msg = statusMessage();
327 msgFont.setSize(LyXFont::SIZE_TINY);
328 int const msg_width = font_metrics::width(msg, msgFont);
329 font_width = std::max(font_width, msg_width);
332 return std::max(50, font_width + 15);
336 BufferView * InsetGraphics::view() const
338 return cache_->view.lock().get();
342 void InsetGraphics::draw(BufferView * bv, LyXFont const & font,
343 int baseline, float & x, bool) const
345 // MakeAbsPath returns params().filename unchanged if it absolute
347 string const file_with_path =
348 MakeAbsPath(params().filename, bv->buffer()->filePath());
350 // A 'paste' operation creates a new inset with the correct filepath,
351 // but then the 'old' inset stored in the 'copy' operation is actually
352 // added to the buffer.
353 // Thus, we should ensure that the filepath is correct.
354 if (file_with_path != cache_->loader.filename())
355 cache_->update(file_with_path);
357 cache_->view = bv->owner()->view();
358 int oasc = cache_->old_ascent;
360 int ldescent = descent(bv, font);
361 int lascent = ascent(bv, font);
362 int lwidth = width(bv, font);
364 // we may have changed while someone other was drawing us so better
365 // to not draw anything as we surely call to redraw ourself soon.
366 // This is not a nice thing to do and should be fixed properly somehow.
367 // But I still don't know the best way to go. So let's do this like this
368 // for now (Jug 20020311)
372 // Make sure now that x is updated upon exit from this routine
376 grfx::Params const & gparams = params().as_grfxParams();
378 if (gparams.display != grfx::NoDisplay &&
379 cache_->loader.status() == grfx::WaitingToLoad)
380 cache_->loader.startLoading();
382 if (!cache_->loader.monitoring())
383 cache_->loader.startMonitoring();
385 // This will draw the graphics. If the graphics has not been loaded yet,
386 // we draw just a rectangle.
387 Painter & paint = bv->painter();
389 if (imageIsDrawable()) {
390 paint.image(old_x + TEXT_TO_INSET_OFFSET, baseline - lascent,
391 lwidth - 2 * TEXT_TO_INSET_OFFSET, lascent + ldescent,
392 *cache_->loader.image());
396 paint.rectangle(old_x + TEXT_TO_INSET_OFFSET, baseline - lascent,
397 lwidth - 2 * TEXT_TO_INSET_OFFSET, lascent + ldescent);
399 // Print the file name.
400 LyXFont msgFont(font);
401 msgFont.setFamily(LyXFont::SANS_FAMILY);
402 string const justname = OnlyFilename (params().filename);
403 if (!justname.empty()) {
404 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
405 paint.text(old_x + TEXT_TO_INSET_OFFSET + 6,
406 baseline - font_metrics::maxAscent(msgFont) - 4,
410 // Print the message.
411 string const msg = statusMessage();
413 msgFont.setSize(LyXFont::SIZE_TINY);
414 paint.text(old_x + TEXT_TO_INSET_OFFSET + 6, baseline - 4, msg, msgFont);
418 // the status message may mean we changed size, so indicate
419 // we need a row redraw
421 if (old_status_ != grfx::ErrorUnknown && old_status_ != cached_status_) {
422 bv->getLyXText()->status(bv, LyXText::CHANGED_IN_DRAW);
426 // Reset the cache, ready for the next draw request
428 cached_status_ = grfx::ErrorUnknown;
429 cached_image_.reset();
430 cache_filled_ = false;
435 void InsetGraphics::edit(BufferView *, int, int, mouse_button::state)
437 InsetGraphicsMailer mailer(*this);
442 void InsetGraphics::edit(BufferView * bv, bool)
444 edit(bv, 0, 0, mouse_button::none);
448 Inset::EDITABLE InsetGraphics::editable() const
454 void InsetGraphics::write(Buffer const *, ostream & os) const
461 void InsetGraphics::read(Buffer const * buf, LyXLex & lex)
463 string const token = lex.getString();
465 if (token == "Graphics")
466 readInsetGraphics(lex);
468 lyxerr[Debug::GRAPHICS] << "Not a Graphics inset!\n";
470 cache_->update(MakeAbsPath(params().filename, buf->filePath()));
474 void InsetGraphics::readInsetGraphics(LyXLex & lex)
476 bool finished = false;
478 while (lex.isOK() && !finished) {
481 string const token = lex.getString();
482 lyxerr[Debug::GRAPHICS] << "Token: '" << token << '\''
487 } else if (token == "\\end_inset") {
489 } else if (token == "FormatVersion") {
491 int version = lex.getInteger();
492 if (version > VersionNumber)
494 << "This document was created with a newer Graphics widget"
495 ", You should use a newer version of LyX to read this"
498 // TODO: Possibly open up a dialog?
501 if (! params_.Read(lex, token))
502 lyxerr << "Unknown token, " << token << ", skipping."
509 string const InsetGraphics::createLatexOptions() const
511 // Calculate the options part of the command, we must do it to a string
512 // stream since we might have a trailing comma that we would like to remove
513 // before writing it to the output stream.
514 ostringstream options;
515 if (!params().bb.empty())
516 options << " bb=" << rtrim(params().bb) << ",\n";
518 options << " draft,\n";
520 options << " clip,\n";
521 if (!lyx::float_equal(params().scale, 0.0, 0.05)) {
522 if (!lyx::float_equal(params().scale, 100.0, 0.05))
523 options << " scale=" << params().scale / 100.0
526 if (!params().width.zero())
527 options << " width=" << params().width.asLatexString() << ",\n";
528 if (!params().height.zero())
529 options << " height=" << params().height.asLatexString() << ",\n";
530 if (params().keepAspectRatio)
531 options << " keepaspectratio,\n";
534 // Make sure rotation angle is not very close to zero;
535 // a float can be effectively zero but not exactly zero.
536 if (!lyx::float_equal(params().rotateAngle, 0, 0.001)) {
537 options << " angle=" << params().rotateAngle << ",\n";
538 if (!params().rotateOrigin.empty()) {
539 options << " origin=" << params().rotateOrigin[0];
540 if (contains(params().rotateOrigin,"Top"))
542 else if (contains(params().rotateOrigin,"Bottom"))
544 else if (contains(params().rotateOrigin,"Baseline"))
550 if (!params().special.empty())
551 options << params().special << ",\n";
553 string opts = STRCONV(options.str());
555 return opts.substr(0, opts.size() - 2);
559 string const InsetGraphics::prepareFile(Buffer const * buf) const
561 // LaTeX can cope if the graphics file doesn't exist, so just return the
563 string const orig_file = params().filename;
564 string orig_file_with_path =
565 MakeAbsPath(orig_file, buf->filePath());
566 lyxerr[Debug::GRAPHICS] << "[InsetGraphics::prepareFile] orig_file = "
567 << orig_file << "\n\twith path: "
568 << orig_file_with_path << endl;
570 if (!IsFileReadable(orig_file_with_path))
573 bool const zipped = zippedFile(orig_file_with_path);
575 // If the file is compressed and we have specified that it
576 // should not be uncompressed, then just return its name and
577 // let LaTeX do the rest!
578 if (zipped && params().noUnzip) {
579 lyxerr[Debug::GRAPHICS]
580 << "\tpass zipped file to LaTeX but with full path.\n";
581 // LaTeX needs an absolue path, otherwise the
582 // coresponding *.eps.bb file isn't found
583 return orig_file_with_path;
586 // Ascertain whether the file has changed.
587 unsigned long const new_checksum = cache_->loader.checksum();
588 bool const file_has_changed = cache_->checksum != new_checksum;
589 if (file_has_changed)
590 cache_->checksum = new_checksum;
592 // temp_file will contain the file for LaTeX to act on if, for example,
593 // we move it to a temp dir or uncompress it.
594 string temp_file = orig_file;
597 // Uncompress the file if necessary.
598 // If it has been uncompressed in a previous call to
599 // prepareFile, do nothing.
600 temp_file = MakeAbsPath(OnlyFilename(temp_file), buf->tmppath);
601 lyxerr[Debug::GRAPHICS]
602 << "\ttemp_file: " << temp_file << endl;
603 if (file_has_changed || !IsFileReadable(temp_file)) {
604 bool const success = lyx::copy(orig_file_with_path,
606 lyxerr[Debug::GRAPHICS]
607 << "\tCopying zipped file from "
608 << orig_file_with_path << " to " << temp_file
609 << (success ? " succeeded\n" : " failed\n");
611 lyxerr[Debug::GRAPHICS]
612 << "\tzipped file " << temp_file
613 << " exists! Maybe no tempdir ...\n";
614 orig_file_with_path = unzipFile(temp_file);
615 lyxerr[Debug::GRAPHICS]
616 << "\tunzipped to " << orig_file_with_path << endl;
619 string const from = getExtFromContents(orig_file_with_path);
620 string const to = findTargetFormat(from);
621 lyxerr[Debug::GRAPHICS]
622 << "\t we have: from " << from << " to " << to << '\n';
624 if (from == to && !lyxrc.use_tempdir) {
625 // No conversion is needed. LaTeX can handle the
626 // graphic file as is.
627 // This is true even if the orig_file is compressed.
628 if (formats.getFormat(to)->extension() == GetExtension(orig_file))
629 return RemoveExtension(orig_file_with_path);
630 return orig_file_with_path;
633 // We're going to be running the exported buffer through the LaTeX
634 // compiler, so must ensure that LaTeX can cope with the graphics
637 // Perform all these manipulations on a temporary file if possible.
638 // If we are not using a temp dir, then temp_file contains the
640 // to allow files with the same name in different dirs
641 // we manipulate the original file "any.dir/file.ext"
642 // to "any_dir_file.ext"! changing the dots in the
643 // dirname is important for the use of ChangeExtension
644 lyxerr[Debug::GRAPHICS]
645 << "\tthe orig file is: " << orig_file_with_path << endl;
647 if (lyxrc.use_tempdir) {
648 string const ext_tmp = GetExtension(orig_file_with_path);
651 ChangeExtension(orig_file_with_path, string()), "/", "_");
652 // without dots and again with ext
653 temp_file = ChangeExtension(
654 subst(temp_file, ".", "_"), ext_tmp);
655 // now we have any_dir_file.ext
656 temp_file = MakeAbsPath(temp_file, buf->tmppath);
657 lyxerr[Debug::GRAPHICS]
658 << "\tchanged to: " << temp_file << endl;
660 // if the file doen't exists, copy it into the tempdir
661 if (file_has_changed || !IsFileReadable(temp_file)) {
662 bool const success = lyx::copy(orig_file_with_path, temp_file);
663 lyxerr[Debug::GRAPHICS]
664 << "\tcopying from " << orig_file_with_path << " to "
666 << (success ? " succeeded\n" : " failed\n");
668 Alert::alert(_("Cannot copy file"), orig_file_with_path,
675 // No conversion is needed. LaTeX can handle the
676 // graphic file as is.
677 if (formats.getFormat(to)->extension() == GetExtension(orig_file))
678 return RemoveExtension(temp_file);
683 string const outfile_base = RemoveExtension(temp_file);
684 lyxerr[Debug::GRAPHICS]
685 << "\tThe original file is " << orig_file << "\n"
686 << "\tA copy has been made and convert is to be called with:\n"
687 << "\tfile to convert = " << temp_file << '\n'
688 << "\toutfile_base = " << outfile_base << '\n'
689 << "\t from " << from << " to " << to << '\n';
691 // if no special converter defined, than we take the default one
692 // from ImageMagic: convert from:inname.from to:outname.to
693 if (!converters.convert(buf, temp_file, outfile_base, from, to)) {
694 string const command =
695 LibFileSearch("scripts", "convertDefault.sh") +
696 ' ' + from + ':' + temp_file + ' ' +
697 to + ':' + outfile_base + '.' + to;
698 lyxerr[Debug::GRAPHICS]
699 << "No converter defined! I use convertDefault.sh:\n\t"
702 one.startscript(Systemcall::Wait, command);
703 if (!IsFileReadable(ChangeExtension(outfile_base, to)))
705 Alert::alert(_("Cannot convert Image (not existing file?)"),
706 boost::io::str(boost::format(_("No information for converting from %1$s to %2$s"))
709 Alert::alert(_("Cannot convert Image (not existing file?)"),
710 _("No information for converting from ") + from + " to " + to);
714 return RemoveExtension(temp_file);
718 int InsetGraphics::latex(Buffer const * buf, ostream & os,
719 bool /*fragile*/, bool/*fs*/) const
721 // If there is no file specified or not existing,
722 // just output a message about it in the latex output.
723 lyxerr[Debug::GRAPHICS]
724 << "insetgraphics::latex: Filename = "
725 << params().filename << endl;
727 // A missing (e)ps-extension is no problem for LaTeX, so
728 // we have to test three different cases
729 string const file_ = MakeAbsPath(params().filename, buf->filePath());
730 bool const file_exists =
732 (IsFileReadable(file_) || // original
733 IsFileReadable(file_ + ".eps") || // original.eps
734 IsFileReadable(file_ + ".ps")); // original.ps
735 string const message = file_exists ?
736 string() : string("bb = 0 0 200 100, draft, type=eps");
737 // if !message.empty() than there was no existing file
738 // "filename(.(e)ps)" found. In this case LaTeX
739 // draws only a rectangle with the above bb and the
740 // not found filename in it.
741 lyxerr[Debug::GRAPHICS]
742 << "\tMessage = \"" << message << '\"' << endl;
744 // These variables collect all the latex code that should be before and
745 // after the actual includegraphics command.
748 // Do we want subcaptions?
749 if (params().subcaption) {
750 before += "\\subfigure[" + params().subcaptionText + "]{";
753 // We never use the starred form, we use the "clip" option instead.
754 before += "\\includegraphics";
756 // Write the options if there are any.
757 string const opts = createLatexOptions();
758 lyxerr[Debug::GRAPHICS] << "\tOpts = " << opts << endl;
760 if (!opts.empty() && !message.empty())
761 before += ("[%\n" + opts + ',' + message + ']');
762 else if (!opts.empty() || !message.empty())
763 before += ("[%\n" + opts + message + ']');
765 lyxerr[Debug::GRAPHICS]
766 << "\tBefore = " << before
767 << "\n\tafter = " << after << endl;
770 // "nice" means that the buffer is exported to LaTeX format but not
771 // run through the LaTeX compiler.
773 os << before <<'{' << params().filename << '}' << after;
777 // Make the filename relative to the lyx file
778 // and remove the extension so the LaTeX will use whatever is
779 // appropriate (when there are several versions in different formats)
780 string const latex_str = message.empty() ?
781 (before + '{' + os::external_path(prepareFile(buf)) + '}' + after) :
782 (before + '{' + params().filename + " not found!}" + after);
785 // Return how many newlines we issued.
786 return int(lyx::count(latex_str.begin(), latex_str.end(),'\n') + 1);
790 int InsetGraphics::ascii(Buffer const *, ostream & os, int) const
792 // No graphics in ascii output. Possible to use gifscii to convert
793 // images to ascii approximation.
794 // 1. Convert file to ascii using gifscii
795 // 2. Read ascii output file and add it to the output stream.
796 // at least we send the filename
799 << boost::format(_("Graphics file: %1$s")) % params().filename
803 << _("Graphics file: ") << params().filename
810 int InsetGraphics::linuxdoc(Buffer const *, ostream &) const
812 // No graphics in LinuxDoc output. Should check how/what to add.
817 // For explanation on inserting graphics into DocBook checkout:
818 // http://linuxdoc.org/LDP/LDP-Author-Guide/inserting-pictures.html
819 // See also the docbook guide at http://www.docbook.org/
820 int InsetGraphics::docbook(Buffer const *, ostream & os,
821 bool /*mixcont*/) const
823 // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
824 // need to switch to MediaObject. However, for now this is sufficient and
826 os << "<graphic fileref=\"&" << graphic_label << ";\">";
831 void InsetGraphics::validate(LaTeXFeatures & features) const
833 // If we have no image, we should not require anything.
834 if (params().filename.empty())
837 features.includeFile(graphic_label, RemoveExtension(params().filename));
839 features.require("graphicx");
841 if (params().subcaption)
842 features.require("subfigure");
846 void InsetGraphics::statusChanged()
848 if (!cache_->view.expired())
849 cache_->view.lock()->updateInset(this, false);
853 bool InsetGraphics::setParams(InsetGraphicsParams const & p,
854 string const & filepath)
856 // If nothing is changed, just return and say so.
857 if (params() == p && !p.filename.empty())
860 // Copy the new parameters.
863 // Update the inset with the new parameters.
864 cache_->update(MakeAbsPath(params().filename, filepath));
866 // We have changed data, report it.
871 InsetGraphicsParams const & InsetGraphics::params() const
877 string const InsetGraphicsMailer::name_("graphics");
879 InsetGraphicsMailer::InsetGraphicsMailer(InsetGraphics & inset)
884 string const InsetGraphicsMailer::inset2string() const
886 return params2string(inset_.params());
890 void InsetGraphicsMailer::string2params(string const & in,
891 InsetGraphicsParams & params)
893 params = InsetGraphicsParams();
895 istringstream data(in);
901 string const token = lex.getString();
907 inset.readInsetGraphics(lex);
908 params = inset.params();
913 InsetGraphicsMailer::params2string(InsetGraphicsParams const & params)
916 data << name_ << ' ';
918 data << "\\end_inset\n";