1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995-2000 the LyX Team.
8 * This file Copyright 2000 Baruch Even.
9 * ====================================================== */
12 How to use it for now:
13 * The lyxfunc 'graphics-insert' will insert this inset into the document.
18 * Switch to convert the images in the background, this requires work on
19 the converter, the systemcontroller and the graphics cache.
22 * Pop up a dialog if the widget version is higher than what we accept.
23 * Prepare code to read FigInset insets to upgrade upwards
24 * Provide sed/awk/C code to downgrade from InsetGraphics to FigInset(?)
31 * If the image is from the clipart, and the document is moved to another
32 directory, the user is screwed. Need a way to handle it.
33 This amounts to a problem of when to use relative or absolute file paths
34 We should probably use what the user asks to use... but when he chooses
35 by the file dialog we normally get an absolute path and this may not be
37 * Bug in FileDlg class (src/filedlg.[hC]) when selecting a file and then
38 pressing ok, it counts as if no real selection done. Apparently
39 when choosing a file it doesn't update the select file input line.
41 * If we are trying to create a file in a read-only directory and there
42 are graphics that need converting, the converting will fail because
43 it is done in-place, into the same directory as the original image.
44 This needs to be fixed in the src/converter.C file
45 [ This is presumed to be fixed, needs testing.]
47 TODO Before initial production release:
48 * Replace insetfig everywhere
49 * Read it's file format
50 * Get created by all commands used to create figinset currently.
51 * Search for comments of the form
52 // INSET_GRAPHICS: remove this when InsetFig is thrown.
55 TODO Extended features:
57 * Advanced Latex tab folder.
58 * Add support for more features so that it will be better than insetfig.
59 * Keep aspect ratio radio button
60 * Support for complete control over the latex parameters for TeXperts
61 * What advanced features the users want to do?
62 Implement them in a non latex dependent way, but a logical way.
63 LyX should translate it to latex or any other fitting format.
64 * Add a way to roll the image file into the file format.
65 * When loading, if the image is not found in the expected place, try
66 to find it in the clipart, or in the same directory with the image.
67 * Keep a tab on the image file, if it changes, update the lyx view.
68 * The image choosing dialog could show thumbnails of the image formats
69 it knows of, thus selection based on the image instead of based on
71 * Add support for the 'picins' package.
72 * Add support for the 'picinpar' package.
73 * Improve support for 'subfigure' - Allow to set the various options
80 * This is currently a moving target, I'm trying stuff and learning what
81 * is needed and how to accomplish it, since there is no predefined goal or
82 * way to go I invent it as I go.
84 * My current intention is for seperation from LaTeX, the basic needs are
85 * resizing and rotating, displaying on screen in various depths and printing
86 * conversion of depths (independent of the display depth). For this I'll
87 * provide a simple interface.
89 * The medium level includes clipping of the image, but in a limited way.
91 * For the LaTeX gurus I'll provide a complete control over the output, but
92 * this is latex dependent and guru dependent so I'd rather avoid doing this
93 * for the normal user. This stuff includes clipping, special image size
94 * specifications (\textwidth\minus 2in) which I see no way to generalize
95 * to non-latex specific way.
98 * 'graphicx' for the graphics inclusion.
99 * 'subfigure' for the subfigures.
103 * Current version is 1 (inset file format version), when changing it
104 * it should be changed in the Write() function when writing in one place
105 * and when reading one should change the version check and the error message.
107 * The filename is kept in the lyx file in a relative way, so as to allow
108 * moving the document file and its images with no problem.
112 * Apparently the PNG output is preferred over PDF images when doing PDF
113 * documents (i.e. prefer imagemagick eps2png over eps2pdf)
119 #pragma implementation
122 #include "insets/insetgraphics.h"
123 #include "insets/insetgraphicsParams.h"
124 #include "graphics/GraphicsCache.h"
125 #include "graphics/GraphicsCacheItem.h"
127 #include "frontends/Dialogs.h"
130 #include "BufferView.h"
131 #include "converter.h"
132 #include "frontends/support/LyXImage.h"
134 #include "lyx_gui_misc.h"
135 #include "support/FileInfo.h"
136 #include "support/filetools.h"
137 #include "support/lyxlib.h"
140 #include "font.h" // For the lyxfont class.
141 #include <algorithm> // For the std::max
142 #include "support/lyxmanip.h"
145 extern string system_tempdir;
149 // This function is a utility function
151 string const RemoveExtension(string const & filename)
153 return ChangeExtension(filename, string());
157 // Initialize only those variables that do not have a constructor.
158 InsetGraphics::InsetGraphics()
159 : cacheHandle(0), imageLoaded(false)
162 InsetGraphics::~InsetGraphics()
164 // Emits the hide signal to the dialog connected (if any)
169 InsetGraphics::statusMessage() const
171 char const * msg = 0;
173 if (cacheHandle.get()) {
174 switch (cacheHandle->getImageStatus()) {
175 case GraphicsCacheItem::UnknownError:
176 msg = _("Unknown Error");
179 case GraphicsCacheItem::Loading:
180 msg = _("Loading...");
183 case GraphicsCacheItem::ErrorReading:
184 msg = _("Error reading");
187 case GraphicsCacheItem::ErrorConverting:
188 msg = _("Error converting");
191 case GraphicsCacheItem::Loaded:
192 // No message to write.
200 int InsetGraphics::ascent(BufferView *, LyXFont const &) const
202 LyXImage * pixmap = 0;
203 if (cacheHandle.get() && (pixmap = cacheHandle->getImage()))
204 return pixmap->getHeight();
210 int InsetGraphics::descent(BufferView *, LyXFont const &) const
212 // this is not true if viewport is used and clip is not.
217 int InsetGraphics::width(BufferView *, LyXFont const & font) const
219 LyXImage * pixmap = 0;
221 if (cacheHandle.get() && (pixmap = cacheHandle->getImage()))
222 return pixmap->getWidth();
224 char const * msg = statusMessage();
228 font_width = lyxfont::width(msg, font);
230 return std::max(50, font_width + 15);
234 void InsetGraphics::draw(BufferView * bv, LyXFont const & font,
235 int baseline, float & x, bool) const
237 Painter & paint = bv->painter();
239 int ldescent = descent(bv, font);
240 int lascent = ascent(bv, font);
241 int lwidth = width(bv, font);
243 // Make sure x is updated upon exit from this routine
247 // This will draw the graphics. If the graphics has not been loaded yet,
248 // we draw just a rectangle.
251 paint.image(int(old_x) + 2, baseline - lascent,
252 lwidth - 4, lascent + ldescent,
253 cacheHandle->getImage());
256 // Get the image status, default to unknown error.
257 GraphicsCacheItem::ImageStatus status = GraphicsCacheItem::UnknownError;
258 if (cacheHandle.get())
259 status = cacheHandle->getImageStatus();
261 // Check if the image is now ready.
262 if (status == GraphicsCacheItem::Loaded) {
265 // Tell BufferView we need to be updated!
266 bv->text->status = LyXText::CHANGED_IN_DRAW;
270 char const * msg = statusMessage();
272 paint.rectangle(int(old_x) + 2, baseline - lascent,
277 // Print the message.
278 LyXFont msgFont(font);
279 msgFont.setFamily(LyXFont::SANS_FAMILY);
280 msgFont.setSize(LyXFont::SIZE_FOOTNOTE);
281 string const justname = OnlyFilename (params.filename);
282 paint.text(int(old_x) + 8,
283 baseline - lyxfont::maxAscent(msgFont) - 4,
286 msgFont.setSize(LyXFont::SIZE_TINY);
287 paint.text(int(old_x) + 8, baseline - 4,
288 msg, strlen(msg), msgFont);
294 void InsetGraphics::Edit(BufferView *bv, int, int, unsigned int)
296 bv->owner()->getDialogs()->showGraphics(this);
300 Inset::EDITABLE InsetGraphics::Editable() const
306 void InsetGraphics::Write(Buffer const * buf, ostream & os) const
308 os << "GRAPHICS FormatVersion 1\n";
310 params.Write(buf, os);
314 void InsetGraphics::Read(Buffer const * buf, LyXLex & lex)
316 bool finished = false;
318 while (lex.IsOK() && !finished) {
321 string const token = lex.GetString();
322 lyxerr.debug() << "Token: '" << token << '\'' << std::endl;
326 } else if (token == "\\end_inset") {
328 } else if (token == "FormatVersion") {
330 int version = lex.GetInteger();
333 << "This document was created with a newer Graphics widget"
334 ", You should use a newer version of LyX to read this"
337 // TODO: Possibly open up a dialog?
340 if (! params.Read(buf, lex, token))
341 lyxerr << "Unknown token, " << token << ", skipping."
350 void formatResize(ostream & os, string const & key,
351 InsetGraphicsParams::Resize resizeType, double size)
353 switch (resizeType) {
354 case InsetGraphicsParams::DEFAULT_SIZE:
357 case InsetGraphicsParams::CM:
358 os << key << '=' << size << "cm,";
361 case InsetGraphicsParams::INCH:
362 os << key << '=' << size << "in,";
365 case InsetGraphicsParams::PERCENT_PAGE:
366 os << key << '=' << size / 100 << "\\text" << key << ',';
369 case InsetGraphicsParams::PERCENT_COLUMN:
370 os << key << '=' << size / 100 << "\\column" << key << ',';
377 InsetGraphics::createLatexOptions() const
379 // Calculate the options part of the command, we must do it to a string
380 // stream since we might have a trailing comma that we would like to remove
381 // before writing it to the output stream.
382 std::ostringstream options;
384 formatResize(options, "width", params.widthResize, params.widthSize);
385 formatResize(options, "height", params.heightResize, params.heightSize);
387 if (params.rotateAngle != 0) {
389 << params.rotateAngle << ',';
392 string opts = options.str().c_str();
393 opts = strip(opts, ',');
401 InsetGraphics::prepareFile(Buffer const *buf) const
404 // do_convert = Do we need to convert the file?
405 // nice = Do we create a nice version?
406 // This is used when exporting the latex file only.
410 // return original filename
413 // convert_place = temp directory
414 // return new filename in temp directory
416 // convert_place = original file directory
417 // return original filename without the extension
420 // Get the extension (format) of the original file.
421 string const extension = GetExtension(params.filename);
423 // Are we creating a PDF or a PS file?
424 // (Should actually mean, are we usind latex or pdflatex).
425 string const image_target = (lyxrc.pdf_mode ? "png" : "eps");
427 if (extension == image_target)
428 return params.filename;
431 if (!buf->niceFile) {
432 string const temp = AddName(buf->tmppath, params.filename);
433 outfile = RemoveExtension(temp);
435 //lyxerr << "buf::tmppath = " << buf->tmppath << "\n";
436 //lyxerr << "filename = " << params.filename << "\n";
437 //lyxerr << "temp = " << temp << "\n";
438 //lyxerr << "outfile = " << outfile << endl;
440 string const path = OnlyPath(buf->fileName());
441 string const relname = MakeRelPath(params.filename, path);
442 outfile = RemoveExtension(relname);
445 converters.Convert(buf, params.filename, outfile, extension, image_target);
450 int InsetGraphics::Latex(Buffer const *buf, ostream & os,
451 bool /*fragile*/, bool/*fs*/) const
453 // MISSING: We have to decide how to do the order of the options
454 // that is dependent of order, like width, height, angle. Should
455 // we rotate before scale? Should we let the user decide?
456 // bool rot_before_scale; ?
458 // (BE) As a first step we should do a scale before rotate since this is
459 // more like the natural thought of how to do it.
460 // (BE) I believe that a priority list presented to the user with
461 // a default order would be the best, though it would be better to
462 // hide such a thing in an "Advanced options" dialog.
463 // (BE) This should go an advanced LaTeX options dialog.
465 // If there is no file specified, just output a message about it in
467 if (params.filename.empty()) {
468 os << "\\fbox{\\rule[-0.5in]{0pt}{1in}"
469 << _("empty figure path")
472 return 1; // One end of line marker added to the stream.
475 // Keep count of newlines that we issued.
478 // This variables collect all the latex code that should be before and
479 // after the actual includegraphics command.
483 // If it's not an inline image, surround it with the centering paragraph.
484 if (! params.inlineFigure) {
485 before += "\n" "\\vspace{0.3cm}\n" "{\\par\\centering ";
486 after = " \\par}\n" "\\vspace{0.3cm}\n" + after;
490 // Do we want subcaptions?
491 if (params.subcaption) {
492 before += "\\subfigure[" + params.subcaptionText + "]{";
496 // We never use the starred form, we use the "clip" option instead.
497 os << before << "\\includegraphics";
499 // Write the options if there are any.
500 string const opts = createLatexOptions();
502 os << '[' << opts << ']';
505 // Make the filename relative to the lyx file
506 // and remove the extension so the LaTeX will use whatever is
507 // appropriate (when there are several versions in different formats)
508 string const filename = prepareFile(buf);
510 os << '{' << filename << '}' << after;
512 // Return how many newlines we issued.
517 int InsetGraphics::Ascii(Buffer const *, ostream &, int) const
519 // No graphics in ascii output. Possible to use gifscii to convert
520 // images to ascii approximation.
522 // 1. Convert file to ascii using gifscii
523 // 2. Read ascii output file and add it to the output stream.
529 int InsetGraphics::Linuxdoc(Buffer const *, ostream &) const
531 // No graphics in LinuxDoc output. Should check how/what to add.
535 // For explanation on inserting graphics into DocBook checkout:
536 // http://linuxdoc.org/LDP/LDP-Author-Guide/inserting-pictures.html
537 // See also the docbook guide at http://www.docbook.org/
538 int InsetGraphics::DocBook(Buffer const * buf, ostream & os) const
540 // Change the path to be relative to the main file.
541 string const buffer_dir = OnlyPath(buf->fileName());
542 string const filename = RemoveExtension(MakeRelPath(params.filename, buffer_dir));
544 // In DocBook v5.0, the graphic tag will be eliminated from DocBook, will
545 // need to switch to MediaObject. However, for now this is sufficient and
547 os << "<graphic fileref=\"" << filename << "\"></graphic>";
552 void InsetGraphics::Validate(LaTeXFeatures & features) const
554 // If we have no image, we should not require anything.
555 if (params.filename.empty())
558 features.graphicx = true;
560 if (params.subcaption)
561 features.subfigure = true;
564 // Update the inset after parameters changed (read from file or changed in
566 void InsetGraphics::updateInset() const
568 GraphicsCache & gc = GraphicsCache::getInstance();
569 boost::shared_ptr<GraphicsCacheItem> temp(0);
571 // We do it this way so that in the face of some error, we will still
572 // be in a valid state.
573 if (!params.filename.empty()) {
574 temp = gc.addFile(params.filename);
577 // Mark the image as unloaded so that it gets updated.
583 bool InsetGraphics::setParams(InsetGraphicsParams const & params)
585 // If nothing is changed, just return and say so.
586 if (this->params == params)
589 // Copy the new parameters.
590 this->params = params;
592 // Update the inset with the new parameters.
595 // We have changed data, report it.
599 InsetGraphicsParams InsetGraphics::getParams() const
604 Inset * InsetGraphics::Clone(Buffer const &) const
606 InsetGraphics * newInset = new InsetGraphics;
608 newInset->cacheHandle = cacheHandle;
609 newInset->imageLoaded = imageLoaded;
611 newInset->setParams(getParams());