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"
23 #include "latexrunparams.h"
26 #include "frontends/Painter.h"
28 #include "graphics/PreviewImage.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 LatexRunParams const & runparams) const
105 WriteStream wi(os, runparams.moving_arg, true);
111 int InsetFormula::ascii(Buffer const &, ostream & os, int) const
113 if (0 && display()) {
116 par()->metricsT(mi, dim);
117 TextPainter tpain(dim.width(), dim.height());
118 par()->drawT(tpain, 0, dim.ascent());
120 // reset metrics cache to "real" values
122 return tpain.textheight();
124 WriteStream wi(os, false, true);
125 wi << ' ' << (par_->asNestInset()->cell(0)) << ' ';
131 int InsetFormula::linuxdoc(Buffer const & buf, ostream & os) const
133 return docbook(buf, os, false);
137 int InsetFormula::docbook(Buffer const & buf, ostream & os, bool) const
140 ms << MTag("equation");
143 int res = ascii(buf, ms.os(), 0);
149 ms << ETag("equation");
150 return ms.line() + res;
154 void InsetFormula::read(Buffer const &, LyXLex & lex)
156 mathed_parse_normal(par_, lex);
157 // remove extra 'mathrm' for chemistry stuff.
158 // will be re-added on write
159 if (par_->asHullInset()->getType() =="chemistry") {
160 lyxerr << "this is chemistry" << endl;
161 if (par_->cell(0).size() == 1) {
162 lyxerr << "this is size 1" << endl;
163 if (par_->cell(0)[0]->asFontInset()) {
164 lyxerr << "this is a font inset "
165 << "replacing " << par_.nucleus()->cell(0) <<
166 " with " << par_->cell(0)[0]->cell(0) << endl;
174 //ostream & operator<<(ostream & os, LyXCursor const & c)
176 // os << '[' << c.x() << ' ' << c.y() << ' ' << c.pos() << ']';
181 void InsetFormula::draw(PainterInfo & pi, int x, int y) const
185 // The previews are drawn only when we're not editing the inset.
186 bool const editing_inset = mathcursor && mathcursor->formula() == this;
187 bool const use_preview = !editing_inset && preview_->previewReady();
189 int const w = dim_.wid;
190 int const d = dim_.des;
191 int const a = dim_.asc;
195 // one pixel gap in front
196 preview_->draw(pi, x + 1, y);
198 PainterInfo p(pi.base.bv);
199 p.base.style = LM_ST_TEXT;
200 p.base.font = pi.base.font;
201 p.base.font.setColor(LColor::math);
202 if (lcolor.getX11Name(LColor::mathbg)
203 != lcolor.getX11Name(LColor::background))
204 p.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
207 mathcursor->drawSelection(pi);
208 //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
211 par_->draw(p, x + offset_, y);
219 void InsetFormula::getLabelList(Buffer const & buffer,
220 vector<string> & res) const
222 par()->getLabelList(buffer, res);
226 InsetOld::Code InsetFormula::lyxCode() const
228 return InsetOld::MATH_CODE;
232 void InsetFormula::validate(LaTeXFeatures & features) const
234 par_->validate(features);
238 bool InsetFormula::insetAllowed(InsetOld::Code code) const
241 code == InsetOld::LABEL_CODE
242 || code == InsetOld::REF_CODE
243 || code == InsetOld::ERT_CODE;
247 void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
249 bool const editing_inset = mathcursor && mathcursor->formula() == this;
250 bool const use_preview = !editing_inset && preview_->previewReady();
253 preview_->metrics(m, dim);
254 // insert a one pixel gap in front of the formula
260 mi.base.style = LM_ST_TEXT;
261 mi.base.font.setColor(LColor::math);
262 par()->metrics(mi, dim);
268 offset_ = (m.base.textwidth - dim.wid) / 2;
269 dim.wid = m.base.textwidth;
278 void InsetFormula::mutate(string const & type)
280 par_.nucleus()->mutate(type);
288 void InsetFormula::statusChanged() const
291 view()->updateInset(this);
297 bool preview_wanted(InsetFormula const & inset, Buffer const &)
299 // Don't want a preview when we're editing the inset
300 return !(mathcursor && mathcursor->formula() == &inset);
304 string const latex_string(InsetFormula const & inset, Buffer const &)
307 WriteStream wi(ls, false, false);
308 inset.par()->write(wi);
315 void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
317 if (preview_wanted(*this, ploader.buffer())) {
318 string const snippet = latex_string(*this, ploader.buffer());
319 preview_->addPreview(snippet, ploader);
324 void InsetFormula::generatePreview(Buffer const & buffer) const
326 if (preview_wanted(*this, buffer)) {
327 string const snippet = latex_string(*this, buffer);
328 preview_->generatePreview(snippet, buffer);