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"
67 #include "frontends/Painter.h"
69 #include "frontends/font_metrics.h"
72 #include "LaTeXFeatures.h"
75 #include "frontends/Alert.h"
76 #include "frontends/Dialogs.h"
77 #include "frontends/LyXView.h"
79 #include "frontends/controllers/helper_funcs.h" // getVectorFromString
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 // Emits the hide signal to the dialog connected (if any)
220 string const InsetGraphics::statusMessage() const
222 switch (cache_->loader.status()) {
223 case grfx::WaitingToLoad:
224 return _("Not shown.");
226 return _("Loading...");
227 case grfx::Converting:
228 return _("Converting to loadable format...");
230 return _("Loaded into memory. Must now generate pixmap.");
231 case grfx::ScalingEtc:
232 return _("Scaling etc...");
234 return _("Ready to display");
235 case grfx::ErrorNoFile:
236 return _("No file found!");
237 case grfx::ErrorConverting:
238 return _("Error converting to loadable format");
239 case grfx::ErrorLoading:
240 return _("Error loading file into memory");
241 case grfx::ErrorGeneratingPixmap:
242 return _("Error generating the pixmap");
243 case grfx::ErrorUnknown:
244 return _("No image");
250 bool InsetGraphics::imageIsDrawable() const
252 if (!cache_->loader.image() || cache_->loader.status() != grfx::Ready)
255 return cache_->loader.image()->isDrawable();
259 int InsetGraphics::ascent(BufferView *, LyXFont const &) const
261 cache_->old_ascent = 50;
262 if (imageIsDrawable())
263 cache_->old_ascent = cache_->loader.image()->getHeight();
264 return cache_->old_ascent;
268 int InsetGraphics::descent(BufferView *, LyXFont const &) const
274 int InsetGraphics::width(BufferView *, LyXFont const & font) const
276 if (imageIsDrawable())
277 return cache_->loader.image()->getWidth() + 2 * TEXT_TO_INSET_OFFSET;
281 LyXFont msgFont(font);
282 msgFont.setFamily(LyXFont::SANS_FAMILY);
284 string const justname = OnlyFilename (params().filename);
285 if (!justname.empty()) {
286 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
287 font_width = font_metrics::width(justname, msgFont);
290 string const msg = statusMessage();
292 msgFont.setSize(LyXFont::SIZE_TINY);
293 int const msg_width = font_metrics::width(msg, msgFont);
294 font_width = std::max(font_width, msg_width);
297 return std::max(50, font_width + 15);
302 void InsetGraphics::draw(BufferView * bv, LyXFont const & font,
303 int baseline, float & x, bool) const
305 // MakeAbsPath returns params().filename unchanged if it absolute
307 string const file_with_path =
308 MakeAbsPath(params().filename, bv->buffer()->filePath());
310 // A 'paste' operation creates a new inset with the correct filepath,
311 // but then the 'old' inset stored in the 'copy' operation is actually
312 // added to the buffer.
313 // Thus, we should ensure that the filepath is correct.
314 if (file_with_path != cache_->loader.filename())
315 cache_->update(file_with_path);
317 cache_->view = bv->owner()->view();
318 int oasc = cache_->old_ascent;
320 int ldescent = descent(bv, font);
321 int lascent = ascent(bv, font);
322 int lwidth = width(bv, font);
324 // we may have changed while someone other was drawing us so better
325 // to not draw anything as we surely call to redraw ourself soon.
326 // This is not a nice thing to do and should be fixed properly somehow.
327 // But I still don't know the best way to go. So let's do this like this
328 // for now (Jug 20020311)
329 if (lascent != oasc) {
333 // Make sure now that x is updated upon exit from this routine
337 grfx::Params const & gparams = params().as_grfxParams();
339 if (gparams.display != grfx::NoDisplay
340 && cache_->loader.status() == grfx::WaitingToLoad)
341 cache_->loader.startLoading();
343 if (!cache_->loader.monitoring())
344 cache_->loader.startMonitoring();
346 // This will draw the graphics. If the graphics has not been loaded yet,
347 // we draw just a rectangle.
348 Painter & paint = bv->painter();
350 if (imageIsDrawable()) {
351 paint.image(old_x + TEXT_TO_INSET_OFFSET, baseline - lascent,
352 lwidth - 2 * TEXT_TO_INSET_OFFSET, lascent + ldescent,
353 *cache_->loader.image());
357 paint.rectangle(old_x + TEXT_TO_INSET_OFFSET, baseline - lascent,
358 lwidth - 2 * TEXT_TO_INSET_OFFSET, lascent + ldescent);
360 // Print the file name.
361 LyXFont msgFont(font);
362 msgFont.setFamily(LyXFont::SANS_FAMILY);
363 string const justname = OnlyFilename (params().filename);
364 if (!justname.empty()) {
365 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
366 paint.text(old_x + TEXT_TO_INSET_OFFSET + 6,
367 baseline - font_metrics::maxAscent(msgFont) - 4,
371 // Print the message.
372 string const msg = statusMessage();
374 msgFont.setSize(LyXFont::SIZE_TINY);
375 paint.text(old_x + TEXT_TO_INSET_OFFSET + 6, baseline - 4, msg, msgFont);
379 // the status message may mean we changed size, so indicate
380 // we need a row redraw
382 if (old_status_ != grfx::ErrorUnknown && old_status_ != cached_status_) {
383 bv->getLyXText()->status(bv, LyXText::CHANGED_IN_DRAW);
387 // Reset the cache, ready for the next draw request
389 cached_status_ = grfx::ErrorUnknown;
390 cached_image_.reset();
391 cache_filled_ = false;
396 void InsetGraphics::edit(BufferView *bv, int, int, mouse_button::state)
398 bv->owner()->getDialogs().showGraphics(this);
402 void InsetGraphics::edit(BufferView * bv, bool)
404 edit(bv, 0, 0, mouse_button::none);
408 Inset::EDITABLE InsetGraphics::editable() const
414 void InsetGraphics::write(Buffer const *, ostream & os) const
421 void InsetGraphics::read(Buffer const * buf, LyXLex & lex)
423 string const token = lex.getString();
425 if (token == "Graphics")
426 readInsetGraphics(lex);
428 lyxerr[Debug::GRAPHICS] << "Not a Graphics inset!\n";
430 cache_->update(MakeAbsPath(params().filename, buf->filePath()));
434 void InsetGraphics::readInsetGraphics(LyXLex & lex)
436 bool finished = false;
438 while (lex.isOK() && !finished) {
441 string const token = lex.getString();
442 lyxerr[Debug::GRAPHICS] << "Token: '" << token << '\''
447 } else if (token == "\\end_inset") {
449 } else if (token == "FormatVersion") {
451 int version = lex.getInteger();
452 if (version > VersionNumber)
454 << "This document was created with a newer Graphics widget"
455 ", You should use a newer version of LyX to read this"
458 // TODO: Possibly open up a dialog?
461 if (! params_.Read(lex, token))
462 lyxerr << "Unknown token, " << token << ", skipping."
469 string const InsetGraphics::createLatexOptions() const
471 // Calculate the options part of the command, we must do it to a string
472 // stream since we might have a trailing comma that we would like to remove
473 // before writing it to the output stream.
474 ostringstream options;
475 if (!params().bb.empty())
476 options << " bb=" << rtrim(params().bb) << ",\n";
478 options << " draft,\n";
480 options << " clip,\n";
481 if (!lyx::float_equal(params().scale, 0.0, 0.05)) {
482 if (!lyx::float_equal(params().scale, 100.0, 0.05))
483 options << " scale=" << params().scale / 100.0
486 if (!params().width.zero())
487 options << " width=" << params().width.asLatexString() << ",\n";
488 if (!params().height.zero())
489 options << " height=" << params().height.asLatexString() << ",\n";
490 if (params().keepAspectRatio)
491 options << " keepaspectratio,\n";
494 // Make sure rotation angle is not very close to zero;
495 // a float can be effectively zero but not exactly zero.
496 if (!lyx::float_equal(params().rotateAngle, 0, 0.001)) {
497 options << " angle=" << params().rotateAngle << ",\n";
498 if (!params().rotateOrigin.empty()) {
499 options << " origin=" << params().rotateOrigin[0];
500 if (contains(params().rotateOrigin,"Top"))
502 else if (contains(params().rotateOrigin,"Bottom"))
504 else if (contains(params().rotateOrigin,"Baseline"))
510 if (!params().special.empty())
511 options << params().special << ",\n";
513 string opts = STRCONV(options.str());
515 return opts.substr(0, opts.size() - 2);
519 string const InsetGraphics::prepareFile(Buffer const * buf) const
521 // LaTeX can cope if the graphics file doesn't exist, so just return the
523 string const orig_file = params().filename;
524 string orig_file_with_path =
525 MakeAbsPath(orig_file, buf->filePath());
526 lyxerr[Debug::GRAPHICS] << "[InsetGraphics::prepareFile] orig_file = "
527 << orig_file << "\n\twith path: "
528 << orig_file_with_path << endl;
530 if (!IsFileReadable(orig_file_with_path))
533 bool const zipped = zippedFile(orig_file_with_path);
535 // If the file is compressed and we have specified that it
536 // should not be uncompressed, then just return its name and
537 // let LaTeX do the rest!
538 if (zipped && params().noUnzip) {
539 lyxerr[Debug::GRAPHICS]
540 << "\tpass zipped file to LaTeX but with full path.\n";
541 // LaTeX needs an absolue path, otherwise the
542 // coresponding *.eps.bb file isn't found
543 return orig_file_with_path;
546 // Ascertain whether the file has changed.
547 unsigned long const new_checksum = cache_->loader.checksum();
548 bool const file_has_changed = cache_->checksum != new_checksum;
549 if (file_has_changed)
550 cache_->checksum = new_checksum;
552 // temp_file will contain the file for LaTeX to act on if, for example,
553 // we move it to a temp dir or uncompress it.
554 string temp_file(orig_file);
557 // Uncompress the file if necessary.
558 // If it has been uncompressed in a previous call to
559 // prepareFile, do nothing.
560 temp_file = MakeAbsPath(OnlyFilename(temp_file), buf->tmppath);
561 lyxerr[Debug::GRAPHICS]
562 << "\ttemp_file: " << temp_file << endl;
563 if (file_has_changed || !IsFileReadable(temp_file)) {
564 bool const success = lyx::copy(orig_file_with_path,
566 lyxerr[Debug::GRAPHICS]
567 << "\tCopying zipped file from "
568 << orig_file_with_path << " to " << temp_file
569 << (success ? " succeeded\n" : " failed\n");
571 lyxerr[Debug::GRAPHICS]
572 << "\tzipped file " << temp_file
573 << " exists! Maybe no tempdir ...\n";
574 orig_file_with_path = unzipFile(temp_file);
575 lyxerr[Debug::GRAPHICS]
576 << "\tunzipped to " << orig_file_with_path << endl;
579 string const from = getExtFromContents(orig_file_with_path);
580 string const to = findTargetFormat(from);
581 lyxerr[Debug::GRAPHICS]
582 << "\t we have: from " << from << " to " << to << '\n';
584 if (from == to && !lyxrc.use_tempdir) {
585 // No conversion is needed. LaTeX can handle the
586 // graphic file as is.
587 // This is true even if the orig_file is compressed.
588 if (formats.getFormat(to)->extension() == GetExtension(orig_file)) {
589 return RemoveExtension(orig_file_with_path);
591 return orig_file_with_path;
595 // We're going to be running the exported buffer through the LaTeX
596 // compiler, so must ensure that LaTeX can cope with the graphics
599 // Perform all these manipulations on a temporary file if possible.
600 // If we are not using a temp dir, then temp_file contains the
602 // to allow files with the same name in different dirs
603 // we manipulate the original file "any.dir/file.ext"
604 // to "any_dir_file.ext"! changing the dots in the
605 // dirname is important for the use of ChangeExtension
606 lyxerr[Debug::GRAPHICS]
607 << "\tthe orig file is: " << orig_file_with_path << endl;
609 if (lyxrc.use_tempdir) {
610 string const ext_tmp = GetExtension(orig_file_with_path);
613 ChangeExtension(orig_file_with_path, string()), "/", "_");
614 // without dots and again with ext
615 temp_file = ChangeExtension(
616 subst(temp_file, ".", "_"), ext_tmp);
617 // now we have any_dir_file.ext
618 temp_file = MakeAbsPath(temp_file, buf->tmppath);
619 lyxerr[Debug::GRAPHICS]
620 << "\tchanged to: " << temp_file << endl;
622 // if the file doen't exists, copy it into the tempdir
623 if (file_has_changed || !IsFileReadable(temp_file)) {
624 bool const success = lyx::copy(orig_file_with_path, temp_file);
625 lyxerr[Debug::GRAPHICS]
626 << "\tcopying from " << orig_file_with_path << " to "
628 << (success ? " succeeded\n" : " failed\n");
630 Alert::alert(_("Cannot copy file"), orig_file_with_path,
637 // No conversion is needed. LaTeX can handle the
638 // graphic file as is.
639 if (formats.getFormat(to)->extension() == GetExtension(orig_file))
640 return RemoveExtension(temp_file);
646 string const outfile_base = RemoveExtension(temp_file);
647 lyxerr[Debug::GRAPHICS]
648 << "\tThe original file is " << orig_file << "\n"
649 << "\tA copy has been made and convert is to be called with:\n"
650 << "\tfile to convert = " << temp_file << '\n'
651 << "\toutfile_base = " << outfile_base << '\n'
652 << "\t from " << from << " to " << to << '\n';
654 // if no special converter defined, than we take the default one
655 // from ImageMagic: convert from:inname.from to:outname.to
656 if (!converters.convert(buf, temp_file, outfile_base, from, to)) {
657 string const command =
658 LibFileSearch("scripts", "convertDefault.sh") +
659 ' ' + from + ':' + temp_file + ' ' +
660 to + ':' + outfile_base + '.' + to;
661 lyxerr[Debug::GRAPHICS]
662 << "No converter defined! I use convertDefault.sh:\n\t"
665 one.startscript(Systemcall::Wait, command);
666 if (!IsFileReadable(ChangeExtension(outfile_base, to)))
668 Alert::alert(_("Cannot convert Image (not existing file?)"),
669 boost::io::str(boost::format(_("No information for converting from %1$s to %2$s"))
672 Alert::alert(_("Cannot convert Image (not existing file?)"),
673 _("No information for converting from ") + from + " to " + to);
677 return RemoveExtension(temp_file);
681 int InsetGraphics::latex(Buffer const * buf, ostream & os,
682 bool /*fragile*/, bool/*fs*/) const
684 // If there is no file specified or not existing,
685 // just output a message about it in the latex output.
686 lyxerr[Debug::GRAPHICS]
687 << "insetgraphics::latex: Filename = "
688 << params().filename << endl;
690 // A missing (e)ps-extension is no problem for LaTeX, so
691 // we have to test three different cases
692 string const file_ = MakeAbsPath(params().filename, buf->filePath());
693 bool const file_exists =
695 (IsFileReadable(file_) || // original
696 IsFileReadable(file_ + ".eps") || // original.eps
697 IsFileReadable(file_ + ".ps")); // original.ps
698 string const message = file_exists ?
699 string() : string("bb = 0 0 200 100, draft, type=eps");
700 // if !message.empty() than there was no existing file
701 // "filename(.(e)ps)" found. In this case LaTeX
702 // draws only a rectangle with the above bb and the
703 // not found filename in it.
704 lyxerr[Debug::GRAPHICS]
705 << "\tMessage = \"" << message << '\"' << endl;
707 // These variables collect all the latex code that should be before and
708 // after the actual includegraphics command.
711 // Do we want subcaptions?
712 if (params().subcaption) {
713 before += "\\subfigure[" + params().subcaptionText + "]{";
716 // We never use the starred form, we use the "clip" option instead.
717 before += "\\includegraphics";
719 // Write the options if there are any.
720 string const opts = createLatexOptions();
721 lyxerr[Debug::GRAPHICS] << "\tOpts = " << opts << endl;
723 if (!opts.empty() && !message.empty())
724 before += ("[%\n" + opts + ',' + message + ']');
725 else if (!opts.empty() || !message.empty())
726 before += ("[%\n" + opts + message + ']');
728 lyxerr[Debug::GRAPHICS]
729 << "\tBefore = " << before
730 << "\n\tafter = " << after << endl;
733 // "nice" means that the buffer is exported to LaTeX format but not
734 // run through the LaTeX compiler.
736 os << before <<'{' << params().filename << '}' << after;
740 // Make the filename relative to the lyx file
741 // and remove the extension so the LaTeX will use whatever is
742 // appropriate (when there are several versions in different formats)
743 string const latex_str = message.empty() ?
744 (before + '{' + os::external_path(prepareFile(buf)) + '}' + after) :
745 (before + '{' + params().filename + " not found!}" + after);
748 // Return how many newlines we issued.
749 return int(lyx::count(latex_str.begin(), latex_str.end(),'\n') + 1);
753 int InsetGraphics::ascii(Buffer const *, ostream & os, int) const
755 // No graphics in ascii output. Possible to use gifscii to convert
756 // images to ascii approximation.
757 // 1. Convert file to ascii using gifscii
758 // 2. Read ascii output file and add it to the output stream.
759 // at least we send the filename
762 << boost::format(_("Graphics file: %1$s")) % params().filename
766 << _("Graphics file: ") << params().filename
773 int InsetGraphics::linuxdoc(Buffer const *, ostream &) const
775 // No graphics in LinuxDoc output. Should check how/what to add.
780 // For explanation on inserting graphics into DocBook checkout:
781 // http://linuxdoc.org/LDP/LDP-Author-Guide/inserting-pictures.html
782 // See also the docbook guide at http://www.docbook.org/
783 int InsetGraphics::docbook(Buffer const *, ostream & os,
784 bool /*mixcont*/) const
786 // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
787 // need to switch to MediaObject. However, for now this is sufficient and
789 os << "<graphic fileref=\"&" << graphic_label << ";\">";
794 void InsetGraphics::validate(LaTeXFeatures & features) const
796 // If we have no image, we should not require anything.
797 if (params().filename.empty())
800 features.includeFile(graphic_label, RemoveExtension(params().filename));
802 features.require("graphicx");
804 if (params().subcaption)
805 features.require("subfigure");
809 void InsetGraphics::statusChanged()
811 if (cache_->view.get())
812 cache_->view.get()->updateInset(this, false);
816 bool InsetGraphics::setParams(InsetGraphicsParams const & p,
817 string const & filepath)
819 // If nothing is changed, just return and say so.
820 if (params() == p && !p.filename.empty())
823 // Copy the new parameters.
826 // Update the inset with the new parameters.
827 cache_->update(MakeAbsPath(params().filename, filepath));
829 // We have changed data, report it.
834 InsetGraphicsParams const & InsetGraphics::params() const