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 "OutputParams.h"
31 #include "ParIterator.h"
32 #include "TextClass.h"
34 #include "support/debug.h"
35 #include "support/docstream.h"
36 #include "support/gettext.h"
37 #include "support/lstrings.h"
39 #include "frontends/Application.h"
46 // With this inset it will be possible to support the latex package
47 // float.sty, and I am sure that with this and some additional support
48 // classes we can support similar functionality in other formats
50 // By using float.sty we will have the same handling for all floats, both
51 // for those already in existance (table and figure) and all user created
52 // ones¹. So suddenly we give the users the possibility of creating new
53 // kinds of floats on the fly. (and with a uniform look)
56 // \newfloat{type}{placement}{ext}[within]
57 // type - The "type" of the new class of floats, like program or
58 // algorithm. After the appropriate \newfloat, commands
59 // such as \begin{program} or \end{algorithm*} will be
61 // placement - The default placement for the given class of floats.
62 // They are like in standard LaTeX: t, b, p and h for top,
63 // bottom, page, and here, respectively. On top of that
64 // there is a new type, H, which does not really correspond
65 // to a float, since it means: put it "here" and nowhere else.
66 // Note, however that the H specifier is special and, because
67 // of implementation details cannot be used in the second
68 // argument of \newfloat.
69 // ext - The file name extension of an auxiliary file for the list
70 // of figures (or whatever). LaTeX writes the captions to
72 // within - This (optional) argument determines whether floats of this
73 // class will be numbered within some sectional unit of the
74 // document. For example, if within is equal to chapter, the
75 // floats will be numbered within chapters.
77 // style - plain, boxed, ruled
78 // \floatname{float}{floatname}
81 // \floatplacement{float}{placement}
84 // \restylefloat{float}
86 // \listof{type}{title}
89 // ¹ the algorithm float is defined using the float.sty package. Like this
91 // \newfloat{algorithm}{htbp}{loa}[<sect>]
92 // \floatname{algorithm}{Algorithm}
94 // The intention is that floats should be definable from two places:
96 // - the "gui" (i.e. by the user)
99 // This should only be done for floats defined in a documentclass and that
100 // does not need any additional packages. The two most known floats in this
101 // category is "table" and "figure". Floats defined in layout files are only
102 // stored in lyx files if the user modifies them.
105 // There should be a gui dialog (and also a collection of lyxfuncs) where
106 // the user can modify existing floats and/or create new ones.
108 // The individual floats will also have some settable
109 // variables: wide and placement.
114 InsetFloat::InsetFloat(Buffer const & buf, string const & type)
115 : InsetCollapsable(buf), name_(from_utf8(type))
117 setLabel(_("float: ") + floatName(type, buf.params()));
122 InsetFloat::~InsetFloat()
124 hideDialogs("float", this);
128 docstring InsetFloat::name() const
130 return "Float:" + name_;
134 docstring InsetFloat::toolTip(BufferView const & bv, int x, int y) const
136 if (InsetCollapsable::toolTip(bv, x, y).empty() || isOpen(bv))
139 OutputParams rp(&buffer().params().encoding());
140 return getCaptionText(rp);
144 void InsetFloat::doDispatch(Cursor & cur, FuncRequest & cmd)
146 switch (cmd.action) {
148 case LFUN_INSET_MODIFY: {
149 InsetFloatParams params;
150 string2params(to_utf8(cmd.argument()), params);
152 // placement, wide and sideways are not used for subfloats
153 if (!params_.subfloat) {
154 params_.placement = params.placement;
155 params_.wide = params.wide;
156 params_.sideways = params.sideways;
157 setWide(params_.wide, cur.buffer()->params(), false);
158 setSideways(params_.sideways, cur.buffer()->params(), false);
161 setNewLabel(cur.buffer()->params());
165 case LFUN_INSET_DIALOG_UPDATE: {
166 cur.bv().updateDialog("float", params2string(params()));
171 InsetCollapsable::doDispatch(cur, cmd);
177 bool InsetFloat::getStatus(Cursor & cur, FuncRequest const & cmd,
178 FuncStatus & flag) const
180 switch (cmd.action) {
182 case LFUN_INSET_MODIFY:
183 case LFUN_INSET_DIALOG_UPDATE:
184 flag.setEnabled(true);
188 return InsetCollapsable::getStatus(cur, cmd, flag);
193 void InsetFloat::updateLabels(ParIterator const & it)
196 buffer().masterBuffer()->params().documentClass().counters();
197 string const saveflt = cnts.current_float();
198 bool const savesubflt = cnts.isSubfloat();
200 bool const subflt = (it.innerInsetOfType(FLOAT_CODE)
201 || it.innerInsetOfType(WRAP_CODE));
202 // floats can only embed subfloats of their own kind
204 params_.type = saveflt;
205 setSubfloat(subflt, buffer().params());
207 // Tell to captions what the current float is
208 cnts.current_float(params().type);
209 cnts.isSubfloat(subflt);
211 InsetCollapsable::updateLabels(it);
214 cnts.current_float(saveflt);
215 cnts.isSubfloat(savesubflt);
219 void InsetFloatParams::write(ostream & os) const
221 os << "Float " << type << '\n';
223 if (!placement.empty())
224 os << "placement " << placement << "\n";
229 os << "wide false\n";
232 os << "sideways true\n";
234 os << "sideways false\n";
238 void InsetFloatParams::read(Lexer & lex)
240 lex.setContext("InsetFloatParams::read");
241 if (lex.checkFor("placement"))
243 lex >> "wide" >> wide;
244 lex >> "sideways" >> sideways;
248 void InsetFloat::write(ostream & os) const
251 InsetCollapsable::write(os);
255 void InsetFloat::read(Lexer & lex)
258 InsetCollapsable::read(lex);
262 void InsetFloat::validate(LaTeXFeatures & features) const
264 if (support::contains(params_.placement, 'H'))
265 features.require("float");
267 if (params_.sideways)
268 features.require("rotfloat");
270 if (features.inFloat())
271 features.require("subfig");
273 features.useFloat(params_.type, features.inFloat());
274 features.inFloat(true);
275 InsetCollapsable::validate(features);
276 features.inFloat(false);
280 docstring InsetFloat::editMessage() const
282 return _("Opened Float Inset");
286 docstring InsetFloat::xhtml(odocstream & os, OutputParams const & rp) const
288 FloatList const & floats = buffer().params().documentClass().floats();
289 Floating const & ftype = floats.getType(params_.type);
290 string const htmltype = ftype.htmlType().empty() ?
291 "div" : ftype.htmlType();
292 string const htmlclass = ftype.htmlClass().empty() ?
293 "float-" + params_.type : ftype.htmlClass();
294 docstring const otag =
295 from_ascii("<" + htmltype + " class='float " + htmlclass + "'>\n");
296 docstring const ctag = from_ascii("</" + htmltype + ">\n");
298 odocstringstream out;
301 docstring def = InsetText::xhtml(out, rp);
304 if (rp.inFloat == OutputParams::NONFLOAT)
305 // In this case, this float needs to be deferred, but we'll put it
306 // before anything the text itself deferred.
307 def = out.str() + '\n' + def;
309 // In this case, the whole thing is already being deferred, so
310 // we can write to the stream.
316 int InsetFloat::latex(odocstream & os, OutputParams const & runparams_in) const
318 if (runparams_in.inFloat != OutputParams::NONFLOAT) {
319 if (runparams_in.moving_arg)
323 OutputParams rp = runparams_in;
324 docstring const caption = getCaption(rp);
325 if (!caption.empty()) {
329 rp.inFloat = OutputParams::SUBFLOAT;
330 int const i = InsetText::latex(os, rp);
335 OutputParams runparams(runparams_in);
336 runparams.inFloat = OutputParams::MAINFLOAT;
338 FloatList const & floats = buffer().params().documentClass().floats();
339 string tmptype = params_.type;
340 if (params_.sideways)
341 tmptype = "sideways" + params_.type;
342 if (params_.wide && (!params_.sideways ||
343 params_.type == "figure" ||
344 params_.type == "table"))
346 // Figure out the float placement to use.
347 // From lowest to highest:
348 // - float default placement
349 // - document wide default placement
350 // - specific float placement
352 string const buf_placement = buffer().params().float_placement;
353 string const def_placement = floats.defaultPlacement(params_.type);
354 if (!params_.placement.empty()
355 && params_.placement != def_placement) {
356 placement = params_.placement;
357 } else if (params_.placement.empty()
358 && !buf_placement.empty()
359 && buf_placement != def_placement) {
360 placement = buf_placement;
363 // The \n is used to force \begin{<floatname>} to appear in a new line.
364 // The % is needed to prevent two consecutive \n chars in the case
365 // when the current output line is empty.
366 os << "%\n\\begin{" << from_ascii(tmptype) << '}';
367 // We only output placement if different from the def_placement.
368 // sidewaysfloats always use their own page
369 if (!placement.empty() && !params_.sideways) {
370 os << '[' << from_ascii(placement) << ']';
374 int const i = InsetText::latex(os, runparams);
376 // The \n is used to force \end{<floatname>} to appear in a new line.
377 // In this case, we do not case if the current output line is empty.
378 os << "\n\\end{" << from_ascii(tmptype) << "}\n";
384 int InsetFloat::plaintext(odocstream & os, OutputParams const & runparams) const
386 os << '[' << buffer().B_("float") << ' '
387 << floatName(params_.type, buffer().params()) << ":\n";
388 InsetText::plaintext(os, runparams);
391 return PLAINTEXT_NEWLINE + 1; // one char on a separate line
395 int InsetFloat::docbook(odocstream & os, OutputParams const & runparams) const
397 // FIXME Implement subfloat!
399 os << '<' << from_ascii(params_.type) << '>';
400 int const i = InsetText::docbook(os, runparams);
401 os << "</" << from_ascii(params_.type) << '>';
407 bool InsetFloat::insetAllowed(InsetCode code) const
409 return code != FOOT_CODE
410 && code != MARGIN_CODE
411 && (code != FLOAT_CODE || !params_.subfloat);
415 bool InsetFloat::showInsetDialog(BufferView * bv) const
417 if (!InsetText::showInsetDialog(bv))
418 bv->showDialog("float", params2string(params()),
419 const_cast<InsetFloat *>(this));
424 void InsetFloat::setWide(bool w, BufferParams const & bp, bool update_label)
432 void InsetFloat::setSideways(bool s, BufferParams const & bp, bool update_label)
434 params_.sideways = s;
440 void InsetFloat::setSubfloat(bool s, BufferParams const & bp, bool update_label)
442 params_.subfloat = s;
448 void InsetFloat::setNewLabel(BufferParams const & bp)
450 docstring lab = _("float: ");
452 if (params_.subfloat)
453 lab = _("subfloat: ");
455 lab += floatName(params_.type, bp);
460 if (params_.sideways)
461 lab += _(" (sideways)");
467 docstring InsetFloat::getCaption(OutputParams const & runparams) const
469 if (paragraphs().empty())
472 InsetCaption const * ins = getCaptionInset();
476 odocstringstream ods;
477 ins->getOptArg(ods, runparams);
479 ins->getArgument(ods, runparams);
485 void InsetFloat::string2params(string const & in, InsetFloatParams & params)
487 params = InsetFloatParams();
491 istringstream data(in);
494 lex.setContext("InsetFloat::string2params");
495 lex >> "float" >> "Float";
496 lex >> params.type; // We have to read the type here!
501 string InsetFloat::params2string(InsetFloatParams const & params)
504 data << "float" << ' ';