3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
8 * \author Jürgen Spitzmüller
10 * Full author contact details are available in file CREDITS.
15 #include "InsetFloat.h"
16 #include "InsetCaption.h"
19 #include "BufferParams.h"
20 #include "BufferView.h"
23 #include "DispatchResult.h"
25 #include "FloatList.h"
26 #include "FuncRequest.h"
27 #include "FuncStatus.h"
28 #include "LaTeXFeatures.h"
30 #include "ParIterator.h"
31 #include "TextClass.h"
33 #include "support/debug.h"
34 #include "support/docstream.h"
35 #include "support/gettext.h"
36 #include "support/lstrings.h"
38 #include "frontends/Application.h"
45 // With this inset it will be possible to support the latex package
46 // float.sty, and I am sure that with this and some additional support
47 // classes we can support similar functionality in other formats
49 // By using float.sty we will have the same handling for all floats, both
50 // for those already in existance (table and figure) and all user created
51 // ones¹. So suddenly we give the users the possibility of creating new
52 // kinds of floats on the fly. (and with a uniform look)
55 // \newfloat{type}{placement}{ext}[within]
56 // type - The "type" of the new class of floats, like program or
57 // algorithm. After the appropriate \newfloat, commands
58 // such as \begin{program} or \end{algorithm*} will be
60 // placement - The default placement for the given class of floats.
61 // They are like in standard LaTeX: t, b, p and h for top,
62 // bottom, page, and here, respectively. On top of that
63 // there is a new type, H, which does not really correspond
64 // to a float, since it means: put it "here" and nowhere else.
65 // Note, however that the H specifier is special and, because
66 // of implementation details cannot be used in the second
67 // argument of \newfloat.
68 // ext - The file name extension of an auxiliary file for the list
69 // of figures (or whatever). LaTeX writes the captions to
71 // within - This (optional) argument determines whether floats of this
72 // class will be numbered within some sectional unit of the
73 // document. For example, if within is equal to chapter, the
74 // floats will be numbered within chapters.
76 // style - plain, boxed, ruled
77 // \floatname{float}{floatname}
80 // \floatplacement{float}{placement}
83 // \restylefloat{float}
85 // \listof{type}{title}
88 // ¹ the algorithm float is defined using the float.sty package. Like this
90 // \newfloat{algorithm}{htbp}{loa}[<sect>]
91 // \floatname{algorithm}{Algorithm}
93 // The intention is that floats should be definable from two places:
95 // - the "gui" (i.e. by the user)
98 // This should only be done for floats defined in a documentclass and that
99 // does not need any additional packages. The two most known floats in this
100 // category is "table" and "figure". Floats defined in layout files are only
101 // stored in lyx files if the user modifies them.
104 // There should be a gui dialog (and also a collection of lyxfuncs) where
105 // the user can modify existing floats and/or create new ones.
107 // The individual floats will also have some settable
108 // variables: wide and placement.
113 InsetFloat::InsetFloat(Buffer * buf, string const & type)
114 : InsetCollapsable(buf), name_(from_utf8(type))
116 setLabel(_("float: ") + floatName(type));
121 InsetFloat::~InsetFloat()
123 hideDialogs("float", this);
127 docstring InsetFloat::name() const
129 return "Float:" + name_;
133 docstring InsetFloat::toolTip(BufferView const & bv, int x, int y) const
135 if (InsetCollapsable::toolTip(bv, x, y).empty() || isOpen(bv))
138 OutputParams rp(&buffer().params().encoding());
139 return getCaptionText(rp);
143 void InsetFloat::doDispatch(Cursor & cur, FuncRequest & cmd)
145 switch (cmd.action) {
147 case LFUN_INSET_MODIFY: {
148 InsetFloatParams params;
149 string2params(to_utf8(cmd.argument()), params);
151 // placement, wide and sideways are not used for subfloats
152 if (!params_.subfloat) {
153 params_.placement = params.placement;
154 params_.wide = params.wide;
155 params_.sideways = params.sideways;
162 case LFUN_INSET_DIALOG_UPDATE: {
163 cur.bv().updateDialog("float", params2string(params()));
168 InsetCollapsable::doDispatch(cur, cmd);
174 bool InsetFloat::getStatus(Cursor & cur, FuncRequest const & cmd,
175 FuncStatus & flag) const
177 switch (cmd.action) {
179 case LFUN_INSET_MODIFY:
180 case LFUN_INSET_DIALOG_UPDATE:
181 flag.setEnabled(true);
184 case LFUN_INSET_SETTINGS:
185 if (InsetCollapsable::getStatus(cur, cmd, flag)) {
186 flag.setEnabled(flag.enabled() && !params_.subfloat);
192 return InsetCollapsable::getStatus(cur, cmd, flag);
197 void InsetFloat::updateLabels(ParIterator const & it)
200 buffer().masterBuffer()->params().documentClass().counters();
201 string const saveflt = cnts.current_float();
202 bool const savesubflt = cnts.isSubfloat();
204 bool const subflt = (it.innerInsetOfType(FLOAT_CODE)
205 || it.innerInsetOfType(WRAP_CODE));
206 // floats can only embed subfloats of their own kind
208 params_.type = saveflt;
211 // Tell to captions what the current float is
212 cnts.current_float(params().type);
213 cnts.isSubfloat(subflt);
215 InsetCollapsable::updateLabels(it);
218 cnts.current_float(saveflt);
219 cnts.isSubfloat(savesubflt);
223 void InsetFloatParams::write(ostream & os) const
225 os << "Float " << type << '\n';
227 if (!placement.empty())
228 os << "placement " << placement << "\n";
233 os << "wide false\n";
236 os << "sideways true\n";
238 os << "sideways false\n";
242 void InsetFloatParams::read(Lexer & lex)
244 lex.setContext("InsetFloatParams::read");
245 if (lex.checkFor("placement"))
247 lex >> "wide" >> wide;
248 lex >> "sideways" >> sideways;
252 void InsetFloat::write(ostream & os) const
255 InsetCollapsable::write(os);
259 void InsetFloat::read(Lexer & lex)
262 InsetCollapsable::read(lex);
266 void InsetFloat::validate(LaTeXFeatures & features) const
268 if (support::contains(params_.placement, 'H'))
269 features.require("float");
271 if (params_.sideways)
272 features.require("rotfloat");
274 if (features.inFloat())
275 features.require("subfig");
277 features.useFloat(params_.type, features.inFloat());
278 features.inFloat(true);
279 InsetCollapsable::validate(features);
280 features.inFloat(false);
284 docstring InsetFloat::xhtml(odocstream & os, OutputParams const & rp) const
286 FloatList const & floats = buffer().params().documentClass().floats();
287 Floating const & ftype = floats.getType(params_.type);
288 string const & htmltype = ftype.htmlTag();
289 string const & htmlclass = ftype.htmlClass();
290 docstring const otag =
291 from_ascii("<" + htmltype + " class='float " + htmlclass + "'>\n");
292 docstring const ctag = from_ascii("</" + htmltype + ">\n");
294 odocstringstream out;
297 docstring def = InsetText::xhtml(out, rp);
300 if (rp.inFloat == OutputParams::NONFLOAT)
301 // In this case, this float needs to be deferred, but we'll put it
302 // before anything the text itself deferred.
303 def = out.str() + '\n' + def;
305 // In this case, the whole thing is already being deferred, so
306 // we can write to the stream.
312 int InsetFloat::latex(odocstream & os, OutputParams const & runparams_in) const
314 if (runparams_in.inFloat != OutputParams::NONFLOAT) {
315 if (runparams_in.moving_arg)
319 OutputParams rp = runparams_in;
320 docstring const caption = getCaption(rp);
321 if (!caption.empty()) {
325 rp.inFloat = OutputParams::SUBFLOAT;
326 int const i = InsetText::latex(os, rp);
331 OutputParams runparams(runparams_in);
332 runparams.inFloat = OutputParams::MAINFLOAT;
334 FloatList const & floats = buffer().params().documentClass().floats();
335 string tmptype = params_.type;
336 if (params_.sideways)
337 tmptype = "sideways" + params_.type;
338 if (params_.wide && (!params_.sideways ||
339 params_.type == "figure" ||
340 params_.type == "table"))
342 // Figure out the float placement to use.
343 // From lowest to highest:
344 // - float default placement
345 // - document wide default placement
346 // - specific float placement
348 string const buf_placement = buffer().params().float_placement;
349 string const def_placement = floats.defaultPlacement(params_.type);
350 if (!params_.placement.empty()
351 && params_.placement != def_placement) {
352 placement = params_.placement;
353 } else if (params_.placement.empty()
354 && !buf_placement.empty()
355 && buf_placement != def_placement) {
356 placement = buf_placement;
359 // The \n is used to force \begin{<floatname>} to appear in a new line.
360 // The % is needed to prevent two consecutive \n chars in the case
361 // when the current output line is empty.
362 os << "%\n\\begin{" << from_ascii(tmptype) << '}';
363 // We only output placement if different from the def_placement.
364 // sidewaysfloats always use their own page
365 if (!placement.empty() && !params_.sideways) {
366 os << '[' << from_ascii(placement) << ']';
370 int const i = InsetText::latex(os, runparams);
372 // The \n is used to force \end{<floatname>} to appear in a new line.
373 // In this case, we do not case if the current output line is empty.
374 os << "\n\\end{" << from_ascii(tmptype) << "}\n";
380 int InsetFloat::plaintext(odocstream & os, OutputParams const & runparams) const
382 os << '[' << buffer().B_("float") << ' '
383 << floatName(params_.type) << ":\n";
384 InsetText::plaintext(os, runparams);
387 return PLAINTEXT_NEWLINE + 1; // one char on a separate line
391 int InsetFloat::docbook(odocstream & os, OutputParams const & runparams) const
393 // FIXME Implement subfloat!
395 os << '<' << from_ascii(params_.type) << '>';
396 int const i = InsetText::docbook(os, runparams);
397 os << "</" << from_ascii(params_.type) << '>';
403 bool InsetFloat::insetAllowed(InsetCode code) const
405 // The case that code == FLOAT_CODE is handled in Text3.cpp,
406 // because we need to know what type of float is meant.
413 return InsetCollapsable::insetAllowed(code);
418 bool InsetFloat::showInsetDialog(BufferView * bv) const
420 if (!InsetText::showInsetDialog(bv))
421 bv->showDialog("float", params2string(params()),
422 const_cast<InsetFloat *>(this));
427 void InsetFloat::setWide(bool w, bool update_label)
435 void InsetFloat::setSideways(bool s, bool update_label)
437 params_.sideways = s;
443 void InsetFloat::setSubfloat(bool s, bool update_label)
445 params_.subfloat = s;
451 void InsetFloat::setNewLabel()
453 docstring lab = _("float: ");
455 if (params_.subfloat)
456 lab = _("subfloat: ");
458 lab += floatName(params_.type);
463 if (params_.sideways)
464 lab += _(" (sideways)");
470 docstring InsetFloat::getCaption(OutputParams const & runparams) const
472 if (paragraphs().empty())
475 InsetCaption const * ins = getCaptionInset();
479 odocstringstream ods;
480 ins->getOptArg(ods, runparams);
482 ins->getArgument(ods, runparams);
488 void InsetFloat::string2params(string const & in, InsetFloatParams & params)
490 params = InsetFloatParams();
494 istringstream data(in);
497 lex.setContext("InsetFloat::string2params");
498 lex >> "float" >> "Float";
499 lex >> params.type; // We have to read the type here!
504 string InsetFloat::params2string(InsetFloatParams const & params)
507 data << "float" << ' ';