1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995-2002 the LyX Team.
9 * \author Herbert Voss <voss@lyx.org>
10 * ====================================================== */
15 * If the image is from the clipart, and the document is moved to another
16 directory, the user is screwed. Need a way to handle it.
17 This amounts to a problem of when to use relative or absolute file paths
18 We should probably use what the user asks to use... but when he chooses
19 by the file dialog we normally get an absolute path and this may not be
22 Note that browseRelFile in helper_funcs.* provides a file name
23 which is relative if it is at reference path (here puffer path)
24 level or below, and an absolute path if the file name is not a
25 `natural' relative file name. In any case,
26 MakeAbsPath(filename, buf->filePath())
27 is guaranteed to provide the correct absolute path. This is what is
28 done know for include insets. Feel free to ask me -- JMarc
31 TODO Before initial production release:
33 * What advanced features the users want to do?
34 Implement them in a non latex dependent way, but a logical way.
35 LyX should translate it to latex or any other fitting format.
36 * Add a way to roll the image file into the file format.
37 * When loading, if the image is not found in the expected place, try
38 to find it in the clipart, or in the same directory with the image.
39 * Keep a tab on the image file, if it changes, update the lyx view.
40 * The image choosing dialog could show thumbnails of the image formats
41 it knows of, thus selection based on the image instead of based on
43 * Add support for the 'picins' package.
44 * Add support for the 'picinpar' package.
45 * Improve support for 'subfigure' - Allow to set the various options
51 * Current version is 1 (inset file format version), when changing it
52 * it should be changed in the Write() function when writing in one place
53 * and when reading one should change the version check and the error message.
54 * The filename is kept in the lyx file in a relative way, so as to allow
55 * moving the document file and its images with no problem.
59 * Postscript output means EPS figures.
61 * PDF output is best done with PDF figures if it's a direct conversion
62 * or PNG figures otherwise.
75 #pragma implementation
78 #include "insets/insetgraphics.h"
79 #include "insets/insetgraphicsParams.h"
81 #include "graphics/GraphicsCache.h"
82 #include "graphics/GraphicsImage.h"
87 #include "BufferView.h"
88 #include "converter.h"
91 #include "font.h" // For the lyxfont class.
94 #include "LaTeXFeatures.h"
96 #include "frontends/Dialogs.h"
97 #include "frontends/controllers/helper_funcs.h" // getVectorFromString
99 #include "support/LAssert.h"
100 #include "support/filetools.h"
101 #include "support/lyxalgo.h" // lyx::count
103 #include <algorithm> // For the std::max
105 extern string system_tempdir;
110 ///////////////////////////////////////////////////////////////////////////
111 int const VersionNumber = 1;
112 ///////////////////////////////////////////////////////////////////////////
116 // This function is a utility function
117 // ... that should be with ChangeExtension ...
119 string const RemoveExtension(string const & filename)
121 return ChangeExtension(filename, string());
129 string const unique_id()
131 static unsigned int seed = 1000;
134 ost << "graph" << ++seed;
136 // Needed if we use lyxstring.
137 return ost.str().c_str();
143 InsetGraphics::InsetGraphics()
144 : graphic_label(unique_id()),
145 cached_status_(grfx::ErrorUnknown), cache_filled_(false), old_asc(0)
150 InsetGraphics::InsetGraphics(InsetGraphics const & ig, bool same_id)
151 : Inset(ig, same_id),
153 graphic_label(unique_id()),
154 cached_status_(grfx::ErrorUnknown), cache_filled_(false), old_asc(0)
156 setParams(ig.params());
160 InsetGraphics::~InsetGraphics()
162 cached_image_.reset(0);
163 grfx::GCache & gc = grfx::GCache::get();
166 // Emits the hide signal to the dialog connected (if any)
171 string const InsetGraphics::statusMessage() const
175 switch (cached_status_) {
176 case grfx::WaitingToLoad:
177 msg = _("Waiting for draw request to start loading...");
180 msg = _("Loading...");
182 case grfx::Converting:
183 msg = _("Converting to loadable format...");
185 case grfx::ScalingEtc:
186 msg = _("Loaded. Scaling etc...");
188 case grfx::ErrorNoFile:
189 msg = _("No file found!");
191 case grfx::ErrorLoading:
192 msg = _("Error loading file into memory");
194 case grfx::ErrorConverting:
195 msg = _("Error converting to loadable format");
197 case grfx::ErrorScalingEtc:
198 msg = _("Error scaling etc");
200 case grfx::ErrorUnknown:
201 msg = _("No image associated with this inset is in the cache!");
204 msg = _("Loaded but not displaying");
212 void InsetGraphics::setCache() const
217 grfx::GCache & gc = grfx::GCache::get();
218 cached_status_ = gc.status(*this);
219 cached_image_ = gc.image(*this);
223 bool InsetGraphics::drawImage() const
226 Pixmap const pixmap =
227 (cached_status_ == grfx::Loaded && cached_image_.get() != 0) ?
228 cached_image_->getPixmap() : 0;
234 int InsetGraphics::ascent(BufferView *, LyXFont const &) const
238 old_asc = cached_image_->getHeight();
243 int InsetGraphics::descent(BufferView *, LyXFont const &) const
249 int InsetGraphics::width(BufferView *, LyXFont const & font) const
252 return cached_image_->getWidth();
256 LyXFont msgFont(font);
257 msgFont.setFamily(LyXFont::SANS_FAMILY);
259 string const justname = OnlyFilename (params().filename);
260 if (!justname.empty()) {
261 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
262 font_width = lyxfont::width(justname, msgFont);
265 string const msg = statusMessage();
267 msgFont.setSize(LyXFont::SIZE_TINY);
268 int const msg_width = lyxfont::width(msg, msgFont);
269 font_width = std::max(font_width, msg_width);
272 return std::max(50, font_width + 15);
277 void InsetGraphics::draw(BufferView * bv, LyXFont const & font,
278 int baseline, float & x, bool) const
282 int ldescent = descent(bv, font);
283 int lascent = ascent(bv, font);
284 int lwidth = width(bv, font);
286 // we may have changed while someone other was drawing us so better
287 // to not draw anything as we surely call to redraw ourself soon.
288 // This is not a nice thing to do and should be fixed properly somehow.
289 // But I still don't know the best way to go. So let's do this like this
290 // for now (Jug 20020311)
291 if (lascent != oasc) {
292 // lyxerr << "IG(" << this << "): " << x << endl;
296 // Make sure now that x is updated upon exit from this routine
300 // Initiate the loading of the graphics file
301 if (cached_status_ == grfx::WaitingToLoad) {
302 grfx::GCache & gc = grfx::GCache::get();
303 gc.startLoading(*this);
306 // This will draw the graphics. If the graphics has not been loaded yet,
307 // we draw just a rectangle.
308 Painter & paint = bv->painter();
309 grfx::ImageStatus old_status_ = cached_status_;
312 // lyxerr << "IG(" << this << "): " << old_x << endl;
313 paint.image(old_x + 2, baseline - lascent,
314 lwidth - 4, lascent + ldescent,
315 *cached_image_.get());
319 paint.rectangle(old_x + 2, baseline - lascent,
323 // Print the file name.
324 LyXFont msgFont(font);
325 msgFont.setFamily(LyXFont::SANS_FAMILY);
326 string const justname = OnlyFilename (params().filename);
327 if (!justname.empty()) {
328 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
329 paint.text(old_x + 8,
330 baseline - lyxfont::maxAscent(msgFont) - 4,
334 // Print the message.
335 string const msg = statusMessage();
337 msgFont.setSize(LyXFont::SIZE_TINY);
338 paint.text(old_x + 8, baseline - 4, msg, msgFont);
342 // the status message may mean we changed size, so indicate
343 // we need a row redraw
344 if (old_status_ != cached_status_) {
345 bv->getLyXText()->status(bv, LyXText::CHANGED_IN_DRAW);
348 // Reset the cache, ready for the next draw request
349 cached_status_ = grfx::ErrorUnknown;
350 cached_image_.reset(0);
351 cache_filled_ = false;
355 // Update the inset after parameters changed (read from file or changed in
356 // dialog. The grfx::GCache makes the decisions about whether or not to draw
357 // (interogates lyxrc, ascertains whether file exists etc)
358 void InsetGraphics::updateInset() const
360 grfx::GCache & gc = grfx::GCache::get();
365 void InsetGraphics::edit(BufferView *bv, int, int, unsigned int)
367 bv->owner()->getDialogs()->showGraphics(this);
371 void InsetGraphics::edit(BufferView * bv, bool)
377 Inset::EDITABLE InsetGraphics::editable() const
383 void InsetGraphics::write(Buffer const * buf, ostream & os) const
385 os << "Graphics FormatVersion " << VersionNumber << '\n';
386 params().Write(buf, os);
390 void InsetGraphics::read(Buffer const * buf, LyXLex & lex)
392 string const token = lex.getString();
394 if (token == "Graphics")
395 readInsetGraphics(buf, lex);
396 else if (token == "Figure") // Compatibility reading of FigInset figures.
397 readFigInset(buf, lex);
399 lyxerr[Debug::GRAPHICS] << "Not a Graphics or Figure inset!\n";
404 void InsetGraphics::readInsetGraphics(Buffer const * buf, LyXLex & lex)
406 bool finished = false;
408 while (lex.isOK() && !finished) {
411 string const token = lex.getString();
412 lyxerr[Debug::GRAPHICS] << "Token: '" << token << '\''
417 } else if (token == "\\end_inset") {
419 } else if (token == "FormatVersion") {
421 int version = lex.getInteger();
422 if (version > VersionNumber)
424 << "This document was created with a newer Graphics widget"
425 ", You should use a newer version of LyX to read this"
428 // TODO: Possibly open up a dialog?
431 if (! params_.Read(buf, lex, token))
432 lyxerr << "Unknown token, " << token << ", skipping."
438 // FormatVersion < 1.0 (LyX < 1.2)
439 void InsetGraphics::readFigInset(Buffer const * buf, LyXLex & lex)
441 std::vector<string> const oldUnits =
442 getVectorFromString("pt,cm,in,p%,c%");
443 bool finished = false;
444 // set the display default
445 if (lyxrc.display_graphics == "mono")
446 params_.display = InsetGraphicsParams::MONOCHROME;
447 else if (lyxrc.display_graphics == "gray")
448 params_.display = InsetGraphicsParams::GRAYSCALE;
449 else if (lyxrc.display_graphics == "color")
450 params_.display = InsetGraphicsParams::COLOR;
452 params_.display = InsetGraphicsParams::NONE;
453 while (lex.isOK() && !finished) {
456 string const token = lex.getString();
457 lyxerr[Debug::GRAPHICS] << "Token: " << token << endl;
461 else if (token == "\\end_inset") {
463 } else if (token == "file") {
465 string const name = lex.getString();
466 string const path = buf->filePath();
467 params_.filename = MakeAbsPath(name, path);
469 } else if (token == "extra") {
471 // kept for backwards compability. Delete in 0.13.x
472 } else if (token == "subcaption") {
474 params_.subcaptionText = lex.getString();
475 params_.subcaption = true;
476 } else if (token == "label") {
478 // kept for backwards compability. Delete in 0.13.x
479 } else if (token == "angle") {
481 params_.rotate = true;
482 params_.rotateAngle = lex.getFloat();
483 } else if (token == "size") {
485 params_.lyxwidth = LyXLength(lex.getString()+"pt");
487 params_.lyxheight = LyXLength(lex.getString()+"pt");
488 } else if (token == "flags") {
490 switch (lex.getInteger()) {
491 case 1: params_.display = InsetGraphicsParams::MONOCHROME;
493 case 2: params_.display = InsetGraphicsParams::GRAYSCALE;
495 case 3: params_.display = InsetGraphicsParams::COLOR;
498 } else if (token == "subfigure") {
499 params_.subcaption = true;
500 } else if (token == "width") {
502 int i = lex.getInteger();
505 params_.scale = lex.getInteger();
506 params_.size_type = InsetGraphicsParams::SCALE;
508 params_.width = LyXLength(lex.getString()+oldUnits[i]);
509 params_.size_type = InsetGraphicsParams::WH;
513 } else if (token == "height") {
515 int i = lex.getInteger();
517 params_.height = LyXLength(lex.getString()+oldUnits[i]);
518 params_.size_type = InsetGraphicsParams::WH;
525 string const InsetGraphics::createLatexOptions() const
527 // Calculate the options part of the command, we must do it to a string
528 // stream since we might have a trailing comma that we would like to remove
529 // before writing it to the output stream.
530 ostringstream options;
531 if (!params().bb.empty())
532 options << " bb=" << strip(params().bb) << ",\n";
534 options << " draft,\n";
536 options << " clip,\n";
537 if (params().size_type == InsetGraphicsParams::WH) {
538 if (!params().width.zero())
539 options << " width=" << params().width.asLatexString() << ",\n";
540 if (!params().height.zero())
541 options << " height=" << params().height.asLatexString() << ",\n";
542 } else if (params().size_type == InsetGraphicsParams::SCALE) {
543 if (params().scale > 0)
544 options << " scale=" << double(params().scale)/100.0 << ",\n";
546 if (params().keepAspectRatio)
547 options << " keepaspectratio,\n";
548 // Make sure it's not very close to zero, a float can be effectively
549 // zero but not exactly zero.
550 if (!lyx::float_equal(params().rotateAngle, 0, 0.001) && params().rotate) {
551 options << " angle=" << params().rotateAngle << ",\n";
552 if (!params().rotateOrigin.empty()) {
553 options << " origin=" << params().rotateOrigin[0];
554 if (contains(params().rotateOrigin,"Top"))
556 else if (contains(params().rotateOrigin,"Bottom"))
558 else if (contains(params().rotateOrigin,"Baseline"))
563 if (!params().special.empty())
564 options << params().special << ",\n";
565 string opts = options.str().c_str();
566 return opts.substr(0,opts.size()-2); // delete last ",\n"
570 string findTargetFormat(string const & suffix)
572 // lyxrc.pdf_mode means:
573 // Are we creating a PDF or a PS file?
574 // (Should actually mean, are we using latex or pdflatex).
575 lyxerr[Debug::GRAPHICS] << "decideOutput: lyxrc.pdf_mode = "
576 << lyxrc.pdf_mode << std::endl;
577 if (lyxrc.pdf_mode) {
578 if (contains(suffix,"ps") || suffix == "pdf")
580 else if (suffix == "jpg")
585 // If it's postscript, we always do eps.
586 lyxerr[Debug::GRAPHICS] << "decideOutput: we have PostScript mode\n";
596 string const InsetGraphics::prepareFile(Buffer const *buf) const
598 // do_convert = Do we need to convert the file?
599 // nice = Do we create a nice version?
600 // This is used when exporting the latex file only.
602 // return original filename
604 // convert_place = temp directory
605 // return new filename in temp directory
607 // convert_place = original file directory
608 // return original filename without the extension
610 // if it's a zipped one, than let LaTeX do the rest!!!
611 string filename_ = params().filename;
612 bool const zipped = zippedFile(filename_);
614 if ((zipped && params().noUnzip) || buf->niceFile) {
615 lyxerr[Debug::GRAPHICS] << "don't unzip file or export latex"
616 << filename_ << endl;
621 filename_ = unzipFile(filename_);
623 string const from = getExtFromContents(filename_);
624 string const to = findTargetFormat(from);
627 // No conversion needed!
631 string const temp = AddName(buf->tmppath, filename_);
632 string const outfile_base = RemoveExtension(temp);
634 lyxerr[Debug::GRAPHICS] << "tempname = " << temp << "\n";
635 lyxerr[Debug::GRAPHICS] << "buf::tmppath = " << buf->tmppath << "\n";
636 lyxerr[Debug::GRAPHICS] << "filename_ = " << filename_ << "\n";
637 lyxerr[Debug::GRAPHICS] << "outfile_base = " << outfile_base << endl;
639 converters.convert(buf, filename_, outfile_base, from, to);
644 int InsetGraphics::latex(Buffer const *buf, ostream & os,
645 bool /*fragile*/, bool/*fs*/) const
647 // If there is no file specified, just output a message about it in
649 if (params().filename.empty()) {
650 os << "\\fbox{\\rule[-0.5in]{0pt}{1in}"
651 << _("empty figure path") << "}\n";
652 return 1; // One end of line marker added to the stream.
654 // These variables collect all the latex code that should be before and
655 // after the actual includegraphics command.
658 // Do we want subcaptions?
659 if (params().subcaption) {
660 before += "\\subfigure[" + params().subcaptionText + "]{";
663 // We never use the starred form, we use the "clip" option instead.
664 before += "\\includegraphics";
665 // Write the options if there are any.
666 string const opts = createLatexOptions();
668 before += ("[%\n" + opts +']');
670 // Make the filename relative to the lyx file
671 // and remove the extension so the LaTeX will use whatever is
672 // appropriate (when there are several versions in different formats)
673 string const latex_str = before + '{' + prepareFile(buf) + '}' + after;
676 // Return how many newlines we issued.
678 int(lyx::count(latex_str.begin(), latex_str.end(),'\n') + 1);
680 // lyxerr << "includegraphics: " << newlines << " lines of text"
686 int InsetGraphics::ascii(Buffer const *, ostream & os, int) const
688 // No graphics in ascii output. Possible to use gifscii to convert
689 // images to ascii approximation.
690 // 1. Convert file to ascii using gifscii
691 // 2. Read ascii output file and add it to the output stream.
692 // at least we send the filename
693 os << '<' << _("Graphicfile:") << params().filename << ">\n";
698 int InsetGraphics::linuxdoc(Buffer const *, ostream &) const
700 // No graphics in LinuxDoc output. Should check how/what to add.
705 // For explanation on inserting graphics into DocBook checkout:
706 // http://linuxdoc.org/LDP/LDP-Author-Guide/inserting-pictures.html
707 // See also the docbook guide at http://www.docbook.org/
708 int InsetGraphics::docbook(Buffer const *, ostream & os) const
710 // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
711 // need to switch to MediaObject. However, for now this is sufficient and
713 os << "<graphic fileref=\"&" << graphic_label << ";\">";
718 void InsetGraphics::validate(LaTeXFeatures & features) const
720 // If we have no image, we should not require anything.
721 if (params().filename.empty())
724 features.includeFile(graphic_label, RemoveExtension(params_.filename));
726 features.require("graphicx");
728 if (params().subcaption)
729 features.require("subfigure");
733 bool InsetGraphics::setParams(InsetGraphicsParams const & p)
735 // If nothing is changed, just return and say so.
736 if (params() == p && !p.filename.empty()) {
740 // Copy the new parameters.
743 // Update the inset with the new parameters.
746 // We have changed data, report it.
751 InsetGraphicsParams const & InsetGraphics::params() const
757 Inset * InsetGraphics::clone(Buffer const &, bool same_id) const
759 return new InsetGraphics(*this, same_id);