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
21 [Note that browseRelFile in helper_funcs.* provides a file name
22 which is relative if it is at reference path (here puffer path)
23 level or below, and an absolute path if the file name is not a
24 `natural' relative file name. In any case,
25 MakeAbsPath(filename, buf->filePath())
26 is guaranteed to provide the correct absolute path. This is what is
27 done know for include insets. Feel free to ask me -- JMarc
30 * If we are trying to create a file in a read-only directory and there
31 are graphics that need converting, the converting will fail because
32 it is done in-place, into the same directory as the original image.
33 This needs to be fixed in the src/converter.C file
34 [ This is presumed to be fixed, needs testing.]
36 * We do not dither or resize the image in a WYSIWYM way, we load it at
37 its original size and color, resizing is done in the final output,
38 but not in the LyX window.
40 * EPS figures are not fully detected, they may have a lot of possible
41 suffixes so we need to read the file and detect if it's EPS or not.
42 [Implemented, need testing]
44 TODO Before initial production release:
45 * Replace insetfig everywhere
46 * Search for comments of the form
47 // INSET_GRAPHICS: remove this when InsetFig is thrown.
48 And act upon them. Make sure not to remove InsetFig code for the
49 1.2.0 release, only afterwards, after deployment shows InsetGraphics
51 * What advanced features the users want to do?
52 Implement them in a non latex dependent way, but a logical way.
53 LyX should translate it to latex or any other fitting format.
54 * Add a way to roll the image file into the file format.
55 * When loading, if the image is not found in the expected place, try
56 to find it in the clipart, or in the same directory with the image.
57 * Keep a tab on the image file, if it changes, update the lyx view.
58 * The image choosing dialog could show thumbnails of the image formats
59 it knows of, thus selection based on the image instead of based on
61 * Add support for the 'picins' package.
62 * Add support for the 'picinpar' package.
63 * Improve support for 'subfigure' - Allow to set the various options
69 * Current version is 1 (inset file format version), when changing it
70 * it should be changed in the Write() function when writing in one place
71 * and when reading one should change the version check and the error message.
72 * The filename is kept in the lyx file in a relative way, so as to allow
73 * moving the document file and its images with no problem.
77 * Postscript output means EPS figures.
79 * PDF output is best done with PDF figures if it's a direct conversion
80 * or PNG figures otherwise.
93 #pragma implementation
96 #include "insets/insetgraphics.h"
97 #include "insets/insetgraphicsParams.h"
98 #include "graphics/GraphicsCache.h"
99 #include "graphics/GraphicsCacheItem.h"
101 #include "frontends/Dialogs.h"
104 #include "BufferView.h"
105 #include "converter.h"
106 #include "frontends/support/LyXImage.h"
108 #include "lyx_gui_misc.h"
109 #include "support/FileInfo.h"
110 #include "support/filetools.h"
111 #include "frontends/controllers/helper_funcs.h"
112 #include "support/lyxlib.h"
115 #include "font.h" // For the lyxfont class.
116 #include "fstream" // for ifstream in isEPS
117 #include <algorithm> // For the std::max
118 #include "support/lyxmanip.h"
122 extern string system_tempdir;
128 ///////////////////////////////////////////////////////////////////////////
129 int const VersionNumber = 1;
130 ///////////////////////////////////////////////////////////////////////////
132 // This function is a utility function
133 // ... that should be with ChangeExtension ...
135 string const RemoveExtension(string const & filename)
137 return ChangeExtension(filename, string());
141 // Initialize only those variables that do not have a constructor.
142 InsetGraphics::InsetGraphics()
143 : cacheHandle(0), imageLoaded(false)
147 InsetGraphics::InsetGraphics(InsetGraphics const & ig, bool same_id)
148 : Inset(), SigC::Object()
149 , cacheHandle(ig.cacheHandle)
150 , imageLoaded(ig.imageLoaded)
152 setParams(ig.getParams());
158 InsetGraphics::~InsetGraphics()
160 // Emits the hide signal to the dialog connected (if any)
165 string const InsetGraphics::statusMessage() const
168 if (cacheHandle.get()) {
169 switch (cacheHandle->getImageStatus()) {
170 case GraphicsCacheItem::UnknownError:
171 msg = _("Unknown Error");
173 case GraphicsCacheItem::Loading:
174 msg = _("Loading...");
176 case GraphicsCacheItem::ErrorReading:
177 msg = _("Error reading");
179 case GraphicsCacheItem::Converting:
180 msg = _("Converting Image");
182 case GraphicsCacheItem::ErrorConverting:
183 msg = _("Error converting");
185 case GraphicsCacheItem::Loaded:
186 // No message to write.
194 int InsetGraphics::ascent(BufferView *, LyXFont const &) const
196 LyXImage * pixmap = 0;
197 if (cacheHandle.get() && (pixmap = cacheHandle->getImage()))
198 return pixmap->getHeight();
204 int InsetGraphics::descent(BufferView *, LyXFont const &) const
206 // this is not true if viewport is used and clip is not.
211 int InsetGraphics::width(BufferView *, LyXFont const & font) const
213 LyXImage * pixmap = 0;
215 if (cacheHandle.get() && (pixmap = cacheHandle->getImage()))
216 return pixmap->getWidth();
220 LyXFont msgFont(font);
221 msgFont.setFamily(LyXFont::SANS_FAMILY);
223 string const justname = OnlyFilename (params.filename);
224 if (!justname.empty()) {
225 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
226 font_width = lyxfont::width(justname, msgFont);
229 string const msg = statusMessage();
231 msgFont.setSize(LyXFont::SIZE_TINY);
232 int const msg_width = lyxfont::width(msg, msgFont);
233 font_width = std::max(font_width, msg_width);
236 return std::max(50, font_width + 15);
241 void InsetGraphics::draw(BufferView * bv, LyXFont const & font,
242 int baseline, float & x, bool) const
244 Painter & paint = bv->painter();
246 int ldescent = descent(bv, font);
247 int lascent = ascent(bv, font);
248 int lwidth = width(bv, font);
250 // Make sure x is updated upon exit from this routine
254 // This will draw the graphics. If the graphics has not been loaded yet,
255 // we draw just a rectangle.
258 paint.image(old_x + 2, baseline - lascent,
259 lwidth - 4, lascent + ldescent,
260 cacheHandle->getImage());
262 // Get the image status, default to unknown error.
263 GraphicsCacheItem::ImageStatus status = GraphicsCacheItem::UnknownError;
264 if (lyxrc.use_gui && params.display != InsetGraphicsParams::NONE &&
266 status = cacheHandle->getImageStatus();
267 // Check if the image is now ready.
268 if (status == GraphicsCacheItem::Loaded) {
270 // Tell BufferView we need to be updated!
271 bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
274 paint.rectangle(old_x + 2, baseline - lascent,
277 // Print the file name.
278 LyXFont msgFont(font);
279 msgFont.setFamily(LyXFont::SANS_FAMILY);
280 string const justname = OnlyFilename (params.filename);
281 if (!justname.empty()) {
282 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
283 paint.text(old_x + 8,
284 baseline - lyxfont::maxAscent(msgFont) - 4,
287 // Print the message.
288 string const msg = statusMessage();
290 msgFont.setSize(LyXFont::SIZE_TINY);
291 paint.text(old_x + 8, baseline - 4, msg, msgFont);
297 void InsetGraphics::edit(BufferView *bv, int, int, unsigned int)
299 bv->owner()->getDialogs()->showGraphics(this);
303 void InsetGraphics::edit(BufferView * bv, bool)
309 Inset::EDITABLE InsetGraphics::editable() const
315 void InsetGraphics::write(Buffer const * buf, ostream & os) const
317 os << "Graphics FormatVersion " << VersionNumber << '\n';
318 params.Write(buf, os);
322 void InsetGraphics::read(Buffer const * buf, LyXLex & lex)
324 string const token = lex.getString();
326 if (token == "Graphics")
327 readInsetGraphics(buf, lex);
328 else if (token == "Figure") // Compatibility reading of FigInset figures.
329 readFigInset(buf, lex);
331 lyxerr[Debug::INFO] << "Not a Graphics or Figure inset!\n";
336 void InsetGraphics::readInsetGraphics(Buffer const * buf, LyXLex & lex)
338 bool finished = false;
340 while (lex.isOK() && !finished) {
343 string const token = lex.getString();
344 lyxerr[Debug::INFO] << "Token: '" << token << '\''
349 } else if (token == "\\end_inset") {
351 } else if (token == "FormatVersion") {
353 int version = lex.getInteger();
354 if (version > VersionNumber)
356 << "This document was created with a newer Graphics widget"
357 ", You should use a newer version of LyX to read this"
360 // TODO: Possibly open up a dialog?
363 if (! params.Read(buf, lex, token))
364 lyxerr << "Unknown token, " << token << ", skipping."
370 // FormatVersion < 1.0 (LyX < 1.2)
371 void InsetGraphics::readFigInset(Buffer const * buf, LyXLex & lex)
373 std::vector<string> const oldUnits =
374 getVectorFromString("pt,cm,in,p%,c%");
375 bool finished = false;
376 // set the display default
377 if (lyxrc.display_graphics == "mono")
378 params.display = InsetGraphicsParams::MONOCHROME;
379 else if (lyxrc.display_graphics == "gray")
380 params.display = InsetGraphicsParams::GRAYSCALE;
381 else if (lyxrc.display_graphics == "color")
382 params.display = InsetGraphicsParams::COLOR;
384 params.display = InsetGraphicsParams::NONE;
385 while (lex.isOK() && !finished) {
388 string const token = lex.getString();
389 lyxerr[Debug::INFO] << "Token: " << token << endl;
393 else if (token == "\\end_inset") {
395 } else if (token == "file") {
397 string const name = lex.getString();
398 string const path = buf->filePath();
399 params.filename = MakeAbsPath(name, path);
401 } else if (token == "extra") {
403 // kept for backwards compability. Delete in 0.13.x
404 } else if (token == "subcaption") {
406 params.subcaptionText = lex.getString();
407 params.subcaption = true;
408 } else if (token == "label") {
410 // kept for backwards compability. Delete in 0.13.x
411 } else if (token == "angle") {
413 params.rotate = true;
414 params.rotateAngle = lex.getFloat();
415 } else if (token == "size") {
417 params.lyxwidth = LyXLength(lex.getString()+"pt");
419 params.lyxheight = LyXLength(lex.getString()+"pt");
420 } else if (token == "flags") {
422 switch (lex.getInteger()) {
423 case 1: params.display = InsetGraphicsParams::MONOCHROME;
425 case 2: params.display = InsetGraphicsParams::GRAYSCALE;
427 case 3: params.display = InsetGraphicsParams::COLOR;
430 } else if (token == "subfigure") {
431 params.subcaption = true;
432 } else if (token == "width") {
434 int i = lex.getInteger();
437 params.scale = lex.getInteger();
438 params.size_type = InsetGraphicsParams::SCALE;
440 params.width = LyXLength(lex.getString()+oldUnits[i]);
441 params.size_type = InsetGraphicsParams::WH;
445 } else if (token == "height") {
447 int i = lex.getInteger();
449 params.height = LyXLength(lex.getString()+oldUnits[i]);
450 params.size_type = InsetGraphicsParams::WH;
457 string const InsetGraphics::createLatexOptions() const
459 // Calculate the options part of the command, we must do it to a string
460 // stream since we might have a trailing comma that we would like to remove
461 // before writing it to the output stream.
462 ostringstream options;
463 if (!params.bb.empty())
464 options << " bb=" << strip(params.bb) << ",%\n";
466 options << " draft,%\n";
468 options << " clip,%\n";
469 if (params.size_type == InsetGraphicsParams::WH) {
470 if (!params.width.zero())
471 options << " width=" << params.width.asLatexString() << ",%\n";
472 if (!params.height.zero())
473 options << " height=" << params.height.asLatexString() << ",%\n";
474 } else if (params.size_type == InsetGraphicsParams::SCALE) {
475 if (params.scale > 0)
476 options << " scale=" << double(params.scale)/100.0 << ",%\n";
478 if (params.keepAspectRatio)
479 options << " keepaspectratio,%\n";
480 // Make sure it's not very close to zero, a float can be effectively
481 // zero but not exactly zero.
482 if (!lyx::float_equal(params.rotateAngle, 0, 0.001) && params.rotate) {
483 options << " angle=" << params.rotateAngle << ",%\n";
484 if (!params.rotateOrigin.empty()) {
485 options << " origin=" << params.rotateOrigin[0];
486 if (contains(params.rotateOrigin,"Top"))
488 else if (contains(params.rotateOrigin,"Bottom"))
490 else if (contains(params.rotateOrigin,"Baseline"))
495 if (!params.special.empty())
496 options << params.special << ",%\n";
497 string opts = options.str().c_str();
498 opts = opts.substr(0,opts.size()-3); // delete last ",%\n"
503 string decideOutputImageFormat(string const & suffix)
505 // lyxrc.pdf_mode means:
506 // Are we creating a PDF or a PS file?
507 // (Should actually mean, are we using latex or pdflatex).
508 lyxerr << "decideOutput::lyxrc.pdf_mode = " << lyxrc.pdf_mode << "\n";
509 if (lyxrc.pdf_mode) {
510 if (contains(suffix,"ps") || suffix == "pdf")
512 else if (suffix == "jpg")
517 // If it's postscript, we always do eps.
518 lyxerr << "decideOutput: we have PostScript mode\n";
527 string const InsetGraphics::prepareFile(Buffer const *buf) const
529 // do_convert = Do we need to convert the file?
530 // nice = Do we create a nice version?
531 // This is used when exporting the latex file only.
533 // return original filename
535 // convert_place = temp directory
536 // return new filename in temp directory
538 // convert_place = original file directory
539 // return original filename without the extension
541 // Get the extension (format) of the original file.
542 // we handle it like a virtual one, so we can have
543 // different extensions with the same type.
544 // if it's a zipped one, than let LaTeX do the rest!!!
545 if (zippedFile(params.filename))
546 return params.filename;
547 // now we have unzipped files
548 string const extension = getExtFromContents(params.filename);
549 // Are we creating a PDF or a PS file?
550 // (Should actually mean, are we usind latex or pdflatex).
551 string const image_target = decideOutputImageFormat(extension);
552 if (extension == image_target)
553 return params.filename;
555 if (!buf->niceFile) {
556 string const temp = AddName(buf->tmppath, params.filename);
557 lyxerr << "temp = " << temp << "\n";
558 outfile = RemoveExtension(temp);
560 string const path = buf->filePath();
561 string const relname = MakeRelPath(params.filename, path);
562 outfile = RemoveExtension(relname);
564 lyxerr << "buf::tmppath = " << buf->tmppath << "\n";
565 lyxerr << "filename = " << params.filename << "\n";
566 lyxerr << "outfile = " << outfile << endl;
567 converters.convert(buf, params.filename, outfile, extension, image_target);
572 int InsetGraphics::latex(Buffer const *buf, ostream & os,
573 bool /*fragile*/, bool/*fs*/) const
575 // If there is no file specified, just output a message about it in
577 if (params.filename.empty()) {
578 os << "\\fbox{\\rule[-0.5in]{0pt}{1in}"
579 << _("empty figure path") << "}\n";
580 return 1; // One end of line marker added to the stream.
582 // Keep count of newlines that we issued.
584 // This variables collect all the latex code that should be before and
585 // after the actual includegraphics command.
588 // Do we want subcaptions?
589 if (params.subcaption) {
590 before += "\\subfigure[" + params.subcaptionText + "]{";
593 // We never use the starred form, we use the "clip" option instead.
594 os << before << "\\includegraphics";
595 // Write the options if there are any.
596 string const opts = createLatexOptions();
598 os << "[%\n" << opts << ']';
600 // Make the filename relative to the lyx file
601 // and remove the extension so the LaTeX will use whatever is
602 // appropriate (when there are several versions in different formats)
603 string const filename = prepareFile(buf);
604 os << '{' << filename << '}' << after;
605 // Return how many newlines we issued.
610 int InsetGraphics::ascii(Buffer const *, ostream & os, int) const
612 // No graphics in ascii output. Possible to use gifscii to convert
613 // images to ascii approximation.
614 // 1. Convert file to ascii using gifscii
615 // 2. Read ascii output file and add it to the output stream.
616 // at least we send the filename
617 os << '<' << _("Graphicfile:") << params.filename << ">\n";
622 int InsetGraphics::linuxdoc(Buffer const *, ostream &) const
624 // No graphics in LinuxDoc output. Should check how/what to add.
629 // For explanation on inserting graphics into DocBook checkout:
630 // http://linuxdoc.org/LDP/LDP-Author-Guide/inserting-pictures.html
631 // See also the docbook guide at http://www.docbook.org/
632 int InsetGraphics::docbook(Buffer const * buf, ostream & os) const
634 // Change the path to be relative to the main file.
635 string const buffer_dir = buf->filePath();
636 string filename = RemoveExtension(
637 MakeRelPath(params.filename, buffer_dir));
639 if (suffixIs(filename, ".eps"))
640 filename.erase(filename.length() - 4);
642 // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
643 // need to switch to MediaObject. However, for now this is sufficient and
645 os << "<graphic fileref=\"" << filename << "\"></graphic>";
650 void InsetGraphics::validate(LaTeXFeatures & features) const
652 // If we have no image, we should not require anything.
653 if (params.filename.empty())
656 features.require("graphicx");
658 if (params.subcaption)
659 features.require("subfigure");
663 // Update the inset after parameters changed (read from file or changed in
665 void InsetGraphics::updateInset() const
667 GraphicsCache & gc = GraphicsCache::getInstance();
668 boost::shared_ptr<GraphicsCacheItem> temp(0);
670 // We do it this way so that in the face of some error, we will still
671 // be in a valid state.
672 InsetGraphicsParams::DisplayType local_display = params.display;
673 if (local_display == InsetGraphicsParams::DEFAULT) {
674 if (lyxrc.display_graphics == "mono")
675 local_display = InsetGraphicsParams::MONOCHROME;
676 else if (lyxrc.display_graphics == "gray")
677 local_display = InsetGraphicsParams::GRAYSCALE;
678 else if (lyxrc.display_graphics == "color")
679 local_display = InsetGraphicsParams::COLOR;
681 local_display = InsetGraphicsParams::NONE;
684 if (!params.filename.empty() && lyxrc.use_gui &&
685 local_display != InsetGraphicsParams::NONE) {
686 temp = gc.addFile(params.filename);
689 // Mark the image as unloaded so that it gets updated.
696 bool InsetGraphics::setParams(InsetGraphicsParams const & p)
698 // If nothing is changed, just return and say so.
702 // Copy the new parameters.
705 // Update the inset with the new parameters.
708 // We have changed data, report it.
713 InsetGraphicsParams InsetGraphics::getParams() const
719 Inset * InsetGraphics::clone(Buffer const &, bool same_id) const
721 return new InsetGraphics(*this, same_id);