3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Alejandro Aguilar Sierra
9 * Full author contact details are available in file CREDITS.
15 #include "math_cursor.h"
16 #include "math_parser.h"
17 #include "math_hullinset.h"
18 #include "math_mathmlstream.h"
19 #include "textpainter.h"
21 #include "BufferView.h"
25 #include "outputparams.h"
27 #include "frontends/Painter.h"
29 #include "graphics/PreviewLoader.h"
31 #include "insets/render_preview.h"
33 #include "support/std_sstream.h"
35 #include <boost/bind.hpp>
39 using std::ostringstream;
45 InsetFormula::InsetFormula(bool chemistry)
46 : par_(MathAtom(new MathHullInset)),
47 preview_(new RenderPreview)
49 preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
55 InsetFormula::InsetFormula(InsetFormula const & other)
56 : InsetFormulaBase(other),
58 preview_(new RenderPreview)
60 preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
64 InsetFormula::InsetFormula(BufferView *)
65 : par_(MathAtom(new MathHullInset)),
66 preview_(new RenderPreview)
68 preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
72 InsetFormula::InsetFormula(string const & data)
73 : par_(MathAtom(new MathHullInset)),
74 preview_(new RenderPreview)
76 preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
79 if (!mathed_parse_normal(par_, data))
80 lyxerr << "cannot interpret '" << data << "' as math" << endl;
84 InsetFormula::~InsetFormula()
88 auto_ptr<InsetBase> InsetFormula::clone() const
90 return auto_ptr<InsetBase>(new InsetFormula(*this));
94 void InsetFormula::write(Buffer const &, ostream & os) const
96 WriteStream wi(os, false, false);
97 os << par_->fileInsetLabel() << ' ';
102 int InsetFormula::latex(Buffer const &, ostream & os,
103 OutputParams const & runparams) const
105 WriteStream wi(os, runparams.moving_arg, true);
111 int InsetFormula::plaintext(Buffer const &, ostream & os,
112 OutputParams const &) const
114 if (0 && display()) {
117 par()->metricsT(mi, dim);
118 TextPainter tpain(dim.width(), dim.height());
119 par()->drawT(tpain, 0, dim.ascent());
121 // reset metrics cache to "real" values
123 return tpain.textheight();
125 WriteStream wi(os, false, true);
126 wi << ' ' << (par_->asNestInset()->cell(0)) << ' ';
132 int InsetFormula::linuxdoc(Buffer const & buf, ostream & os,
133 OutputParams const & runparams) const
135 return docbook(buf, os, runparams);
139 int InsetFormula::docbook(Buffer const & buf, ostream & os,
140 OutputParams const & runparams) const
143 ms << MTag("equation");
146 int res = plaintext(buf, ms.os(), runparams);
152 ms << ETag("equation");
153 return ms.line() + res;
157 void InsetFormula::read(Buffer const &, LyXLex & lex)
159 mathed_parse_normal(par_, lex);
160 // remove extra 'mathrm' for chemistry stuff.
161 // will be re-added on write
162 if (par_->asHullInset()->getType() =="chemistry") {
163 lyxerr << "this is chemistry" << endl;
164 if (par_->cell(0).size() == 1) {
165 lyxerr << "this is size 1" << endl;
166 if (par_->cell(0)[0]->asFontInset()) {
167 lyxerr << "this is a font inset "
168 << "replacing " << par_.nucleus()->cell(0) <<
169 " with " << par_->cell(0)[0]->cell(0) << endl;
179 bool editing_inset(InsetFormula const * inset)
182 (const_cast<InsetFormulaBase const *>(mathcursor->formula()) ==
189 void InsetFormula::draw(PainterInfo & pi, int x, int y) const
194 // The previews are drawn only when we're not editing the inset.
195 bool const use_preview = !editing_inset(this)
196 && RenderPreview::activated()
197 && preview_->previewReady();
199 int const w = dim_.wid;
200 int const d = dim_.des;
201 int const a = dim_.asc;
205 // one pixel gap in front
206 preview_->draw(pi, x + 1, y);
208 PainterInfo p(pi.base.bv);
209 p.base.style = LM_ST_TEXT;
210 p.base.font = pi.base.font;
211 p.base.font.setColor(LColor::math);
212 if (lcolor.getX11Name(LColor::mathbg)
213 != lcolor.getX11Name(LColor::background))
214 p.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
216 if (editing_inset(this)) {
217 mathcursor->drawSelection(pi);
218 //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
226 void InsetFormula::getLabelList(Buffer const & buffer,
227 vector<string> & res) const
229 par()->getLabelList(buffer, res);
233 InsetOld::Code InsetFormula::lyxCode() const
235 return InsetOld::MATH_CODE;
239 void InsetFormula::validate(LaTeXFeatures & features) const
241 par_->validate(features);
245 bool InsetFormula::insetAllowed(InsetOld::Code code) const
248 code == InsetOld::LABEL_CODE
249 || code == InsetOld::REF_CODE
250 || code == InsetOld::ERT_CODE;
254 void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
256 bool const use_preview = !editing_inset(this)
257 && RenderPreview::activated()
258 && preview_->previewReady();
261 preview_->metrics(m, dim);
262 // insert a one pixel gap in front of the formula
268 mi.base.style = LM_ST_TEXT;
269 mi.base.font.setColor(LColor::math);
270 par()->metrics(mi, dim);
279 void InsetFormula::mutate(string const & type)
281 par_.nucleus()->mutate(type);
289 void InsetFormula::statusChanged() const
291 LyX::cref().updateInset(this);
297 string const latex_string(InsetFormula const & inset, Buffer const &)
300 WriteStream wi(os, false, false);
301 inset.par()->write(wi);
308 void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
310 string const snippet = latex_string(*this, ploader.buffer());
311 preview_->addPreview(snippet, ploader);
315 void InsetFormula::generatePreview(Buffer const & buffer) const
317 string const snippet = latex_string(*this, buffer);
318 preview_->addPreview(snippet, buffer);
319 preview_->startLoading(buffer);