-/*
-* File: formula.C
-* Purpose: Implementation of formula inset
-* Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
-* Created: January 1996
-* Description: Allows the edition of math paragraphs inside Lyx.
-*
-* Copyright: 1996-1998 Alejandro Aguilar Sierra
-*
-* Version: 0.4, Lyx project.
-*
-* You are free to use and modify this code under the terms of
-* the GNU General Public Licence version 2 or later.
-*/
-
-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \file formula.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Alejandro Aguilar Sierra
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
#include <config.h>
#include "formula.h"
-#include "commandtags.h"
#include "math_cursor.h"
#include "math_parser.h"
-#include "math_charinset.h"
-#include "math_arrayinset.h"
-#include "math_deliminset.h"
#include "math_hullinset.h"
-#include "math_support.h"
#include "math_mathmlstream.h"
#include "textpainter.h"
-#include "lyx_main.h"
#include "BufferView.h"
-#include "gettext.h"
#include "debug.h"
-#include "lyxrc.h"
-
-#include "support/LOstream.h"
-#include "support/LAssert.h"
-#include "support/lyxlib.h"
-#include "support/systemcall.h"
-#include "support/filetools.h"
+#include "LColor.h"
+#include "lyx_main.h"
+#include "outputparams.h"
-#include "frontends/Alert.h"
-#include "frontends/LyXView.h"
#include "frontends/Painter.h"
-#include "graphics/GraphicsImage.h"
#include "graphics/PreviewLoader.h"
-#include "graphics/PreviewImage.h"
-#include "graphics/Previews.h"
-#include <fstream>
+#include "insets/render_preview.h"
+
+#include "support/std_sstream.h"
+
#include <boost/bind.hpp>
-#include <boost/signals/trackable.hpp>
-#include <boost/signals/connection.hpp>
-#include <boost/utility.hpp>
+using std::string;
using std::ostream;
-using std::ifstream;
-using std::istream;
-using std::pair;
-using std::endl;
+using std::ostringstream;
using std::vector;
-using std::getline;
-
-
-struct InsetFormula::PreviewImpl : public boost::signals::trackable {
- ///
- PreviewImpl(InsetFormula & p) : parent_(p), pimage_(0) {}
-
- ///
- void generatePreview(grfx::PreviewLoader & previewer);
-
- /** This method is connected to the grfx::PreviewLoader::imageReady
- * signal.
- */
- void previewReady(grfx::PreviewImage const &);
-
- /// A helper method.
- string const latexString() const;
-
- ///
- bool usePreview() const;
-
- ///
- InsetFormula & parent_;
- ///
- mutable grfx::PreviewImage const * pimage_;
- ///
- boost::signals::connection connection_;
-};
-
+using std::auto_ptr;
+using std::endl;
-InsetFormula::InsetFormula()
+InsetFormula::InsetFormula(bool chemistry)
: par_(MathAtom(new MathHullInset)),
- preview_(new PreviewImpl(*this))
-{}
+ preview_(new RenderPreview)
+{
+ preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
+ if (chemistry)
+ mutate("chemistry");
+}
InsetFormula::InsetFormula(InsetFormula const & other)
- : par_(other.par_),
- preview_(new PreviewImpl(*this))
-{}
+ : InsetFormulaBase(other),
+ par_(other.par_),
+ preview_(new RenderPreview)
+{
+ preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
+}
-InsetFormula::InsetFormula(BufferView * bv)
+InsetFormula::InsetFormula(BufferView *)
: par_(MathAtom(new MathHullInset)),
- preview_(new PreviewImpl(*this))
+ preview_(new RenderPreview)
{
- view_ = bv;
+ preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
}
InsetFormula::InsetFormula(string const & data)
: par_(MathAtom(new MathHullInset)),
- preview_(new PreviewImpl(*this))
+ preview_(new RenderPreview)
{
+ preview_->connect(boost::bind(&InsetFormula::statusChanged, this));
if (!data.size())
return;
if (!mathed_parse_normal(par_, data))
- lyxerr << "cannot interpret '" << data << "' as math\n";
+ lyxerr << "cannot interpret '" << data << "' as math" << endl;
}
-
InsetFormula::~InsetFormula()
{}
-Inset * InsetFormula::clone(Buffer const &, bool) const
+auto_ptr<InsetBase> InsetFormula::clone() const
{
- return new InsetFormula(*this);
+ return auto_ptr<InsetBase>(new InsetFormula(*this));
}
-void InsetFormula::write(Buffer const *, ostream & os) const
+void InsetFormula::write(Buffer const &, ostream & os) const
{
- os << "Formula ";
WriteStream wi(os, false, false);
+ os << par_->fileInsetLabel() << ' ';
par_->write(wi);
}
-int InsetFormula::latex(Buffer const *, ostream & os, bool fragile, bool) const
+int InsetFormula::latex(Buffer const &, ostream & os,
+ OutputParams const & runparams) const
{
- WriteStream wi(os, fragile, true);
+ WriteStream wi(os, runparams.moving_arg, true);
par_->write(wi);
return wi.line();
}
-
-int InsetFormula::ascii(Buffer const *, ostream & os, int) const
+int InsetFormula::plaintext(Buffer const &, ostream & os,
+ OutputParams const &) const
{
-#if 0
- TextMetricsInfo mi;
- par()->metricsT(mi);
- TextPainter tpain(par()->width(), par()->height());
- par()->drawT(tpain, 0, par()->ascent());
- tpain.show(os);
- // reset metrics cache to "real" values
- metrics();
- return tpain.textheight();
-#else
- WriteStream wi(os, false, true);
- par_->write(wi);
- return wi.line();
-#endif
+ if (0 && display()) {
+ Dimension dim;
+ TextMetricsInfo mi;
+ par()->metricsT(mi, dim);
+ TextPainter tpain(dim.width(), dim.height());
+ par()->drawT(tpain, 0, dim.ascent());
+ tpain.show(os, 3);
+ // reset metrics cache to "real" values
+ //metrics();
+ return tpain.textheight();
+ } else {
+ WriteStream wi(os, false, true);
+ wi << ' ' << (par_->asNestInset()->cell(0)) << ' ';
+ return wi.line();
+ }
}
-int InsetFormula::linuxdoc(Buffer const * buf, ostream & os) const
+int InsetFormula::linuxdoc(Buffer const & buf, ostream & os,
+ OutputParams const & runparams) const
{
- return docbook(buf, os, false);
+ return docbook(buf, os, runparams);
}
-int InsetFormula::docbook(Buffer const * buf, ostream & os, bool) const
+int InsetFormula::docbook(Buffer const & buf, ostream & os,
+ OutputParams const & runparams) const
{
MathMLStream ms(os);
ms << MTag("equation");
ms << MTag("alt");
ms << "<[CDATA[";
- int res = ascii(buf, ms.os(), 0);
+ int res = plaintext(buf, ms.os(), runparams);
ms << "]]>";
ms << ETag("alt");
ms << MTag("math");
- ms << par_.nucleus();
+ ms << par_;
ms << ETag("math");
ms << ETag("equation");
return ms.line() + res;
}
-void InsetFormula::read(Buffer const *, LyXLex & lex)
+void InsetFormula::read(Buffer const &, LyXLex & lex)
{
mathed_parse_normal(par_, lex);
- metrics();
- updatePreview();
+ // remove extra 'mathrm' for chemistry stuff.
+ // will be re-added on write
+ if (par_->asHullInset()->getType() =="chemistry") {
+ lyxerr << "this is chemistry" << endl;
+ if (par_->cell(0).size() == 1) {
+ lyxerr << "this is size 1" << endl;
+ if (par_->cell(0)[0]->asFontInset()) {
+ lyxerr << "this is a font inset "
+ << "replacing " << par_.nucleus()->cell(0) <<
+ " with " << par_->cell(0)[0]->cell(0) << endl;
+ }
+ }
+ }
+ //metrics();
}
//}
-void InsetFormula::draw(BufferView * bv, LyXFont const & font,
- int y, float & xx, bool) const
+namespace {
+
+bool editing_inset(InsetFormula const * inset)
{
- int const x = int(xx);
- int const w = width(bv, font);
- int const d = descent(bv, font);
- int const a = ascent(bv, font);
- int const h = a + d;
+ return mathcursor &&
+ (const_cast<InsetFormulaBase const *>(mathcursor->formula()) ==
+ inset);
+}
- MathPainterInfo pi(bv->painter());
+} // namespace anon
+
+
+void InsetFormula::draw(PainterInfo & pi, int x, int y) const
+{
+ // The previews are drawn only when we're not editing the inset.
+ bool const use_preview = (!editing_inset(this) &&
+ RenderPreview::activated() &&
+ preview_->previewReady());
+
+ int const w = dim_.wid;
+ int const d = dim_.des;
+ int const a = dim_.asc;
+ int const h = a + d;
- if (preview_->usePreview()) {
- pi.pain.image(x + 1, y - a + 1, w - 2, h - 2,
- *(preview_->pimage_->image()));
+ if (use_preview) {
+ // one pixel gap in front
+ preview_->draw(pi, x + 1, y);
} else {
- //pi.base.style = display() ? LM_ST_DISPLAY : LM_ST_TEXT;
- pi.base.style = LM_ST_TEXT;
- pi.base.font = font;
- pi.base.font.setColor(LColor::math);
+ PainterInfo p(pi.base.bv);
+ p.base.style = LM_ST_TEXT;
+ p.base.font = pi.base.font;
+ p.base.font.setColor(LColor::math);
if (lcolor.getX11Name(LColor::mathbg)
!= lcolor.getX11Name(LColor::background))
- pi.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
+ p.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
- if (mathcursor &&
- const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
- {
+ if (editing_inset(this)) {
mathcursor->drawSelection(pi);
- pi.pain.rectangle(x, y - a, w, h, LColor::mathframe);
+ //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
}
- par_->draw(pi, x, y);
+ par_->draw(p, x, y);
}
- xx += w;
xo_ = x;
yo_ = y;
-
- setCursorVisible(false);
-}
-
-
-vector<string> const InsetFormula::getLabelList() const
-{
- return hull()->getLabelList();
-}
-
-
-UpdatableInset::RESULT
-InsetFormula::localDispatch(BufferView * bv, kb_action action,
- string const & arg)
-{
- RESULT result = DISPATCHED;
-
- switch (action) {
-
- case LFUN_BREAKLINE:
- bv->lockedInsetStoreUndo(Undo::INSERT);
- mathcursor->breakLine();
- mathcursor->normalize();
- updateLocal(bv, true);
- break;
-
- case LFUN_MATH_NUMBER:
- {
- //lyxerr << "toggling all numbers\n";
- if (display()) {
- bv->lockedInsetStoreUndo(Undo::INSERT);
- bool old = hull()->numberedType();
- for (MathInset::row_type row = 0; row < par_->nrows(); ++row)
- hull()->numbered(row, !old);
- bv->owner()->message(old ? _("No number") : _("Number"));
- updateLocal(bv, true);
- }
- break;
- }
-
- case LFUN_MATH_NONUMBER:
- {
- //lyxerr << "toggling line number\n";
- if (display()) {
- bv->lockedInsetStoreUndo(Undo::INSERT);
- MathCursor::row_type row = mathcursor->hullRow();
- bool old = hull()->numbered(row);
- bv->owner()->message(old ? _("No number") : _("Number"));
- hull()->numbered(row, !old);
- updateLocal(bv, true);
- }
- break;
- }
-
- case LFUN_INSERT_LABEL:
- {
- bv->lockedInsetStoreUndo(Undo::INSERT);
-
- MathCursor::row_type row = mathcursor->hullRow();
- string old_label = hull()->label(row);
- string new_label = arg;
-
- if (new_label.empty()) {
- string const default_label =
- (lyxrc.label_init_length >= 0) ? "eq:" : "";
- pair<bool, string> const res = old_label.empty()
- ? Alert::askForText(_("Enter new label to insert:"), default_label)
- : Alert::askForText(_("Enter label:"), old_label);
- if (!res.first)
- break;
- new_label = frontStrip(strip(res.second));
- }
-
- //if (new_label == old_label)
- // break; // Nothing to do
-
- if (!new_label.empty()) {
- lyxerr << "setting label to '" << new_label << "'\n";
- hull()->numbered(row, true);
- }
-
-#warning FIXME: please check you really mean repaint() ... is it needed,
-#warning and if so, should it be update() instead ?
- if (!new_label.empty() && bv->ChangeRefsIfUnique(old_label, new_label))
- bv->repaint();
-
- hull()->label(row, new_label);
-
- updateLocal(bv, true);
- break;
- }
-
- case LFUN_MATH_MUTATE:
- {
- bv->lockedInsetStoreUndo(Undo::EDIT);
- int x;
- int y;
- mathcursor->getPos(x, y);
- mutate(arg);
- mathcursor->setPos(x, y);
- mathcursor->normalize();
- updateLocal(bv, true);
- break;
- }
-
- case LFUN_MATH_EXTERN:
- {
- bv->lockedInsetStoreUndo(Undo::EDIT);
- if (mathcursor)
- mathcursor->handleExtern(arg);
- // re-compute inset dimension
- metrics(bv);
- updateLocal(bv, true);
- break;
- }
-
- case LFUN_MATH_DISPLAY:
- {
- int x = 0;
- int y = 0;
- mathcursor->getPos(x, y);
- if (hullType() == "simple")
- mutate("equation");
- else
- mutate("simple");
- mathcursor->setPos(x, y);
- mathcursor->normalize();
- updateLocal(bv, true);
- break;
- }
-
- case LFUN_PASTESELECTION:
- {
- string const clip = bv->getClipboard();
- if (!clip.empty())
- mathed_parse_normal(par_, clip);
- break;
- }
-
- default:
- result = InsetFormulaBase::localDispatch(bv, action, arg);
- }
-
- //updatePreview();
-
- return result;
-}
-
-
-bool InsetFormula::display() const
-{
- return hullType() != "simple" && hullType() != "none";
-}
-
-
-MathHullInset const * InsetFormula::hull() const
-{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
}
-MathHullInset * InsetFormula::hull()
+void InsetFormula::getLabelList(Buffer const & buffer,
+ vector<string> & res) const
{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
+ par()->getLabelList(buffer, res);
}
-Inset::Code InsetFormula::lyxCode() const
+InsetOld::Code InsetFormula::lyxCode() const
{
- return Inset::MATH_CODE;
+ return InsetOld::MATH_CODE;
}
}
-bool InsetFormula::insetAllowed(Inset::Code code) const
+bool InsetFormula::insetAllowed(InsetOld::Code code) const
{
return
- (code == Inset::LABEL_CODE && display())
- || code == Inset::REF_CODE
- || code == Inset::ERT_CODE;
-}
-
-
-int InsetFormula::ascent(BufferView *, LyXFont const &) const
-{
- return preview_->usePreview() ?
- 1 + preview_->pimage_->ascent() : 1 + par_->ascent();
-}
-
-
-int InsetFormula::descent(BufferView *, LyXFont const &) const
-{
- return preview_->usePreview() ?
- 1 + preview_->pimage_->descent() : 1 + par_->descent();
+ code == InsetOld::LABEL_CODE
+ || code == InsetOld::REF_CODE
+ || code == InsetOld::ERT_CODE;
}
-int InsetFormula::width(BufferView * bv, LyXFont const & font) const
+void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
{
- metrics(bv, font);
- return preview_->usePreview() ?
- preview_->pimage_->width() : par_->width();
-}
-
+ bool const use_preview = (!editing_inset(this) &&
+ RenderPreview::activated() &&
+ preview_->previewReady());
+
+ if (use_preview) {
+ preview_->metrics(m, dim);
+ // insert a one pixel gap in front of the formula
+ dim.wid += 1;
+ if (display())
+ dim.des += 12;
+ } else {
+ MetricsInfo mi = m;
+ mi.base.style = LM_ST_TEXT;
+ mi.base.font.setColor(LColor::math);
+ par()->metrics(mi, dim);
+ dim.asc += 1;
+ dim.des += 1;
+ }
-string InsetFormula::hullType() const
-{
- return hull() ? hull()->getType() : "none";
+ dim_ = dim;
}
-void InsetFormula::mutate(string const & type )
+void InsetFormula::mutate(string const & type)
{
- if (hull())
- hull()->mutate(type);
+ par_.nucleus()->mutate(type);
}
// preview stuff
//
-void InsetFormula::generatePreview(grfx::PreviewLoader & ploader) const
+void InsetFormula::statusChanged() const
{
- // Do nothing if no preview is desired.
- if (!grfx::Previews::activated())
- return;
-
- preview_->generatePreview(ploader);
+ LyX::cref().updateInset(this);
}
-void InsetFormula::PreviewImpl::generatePreview(grfx::PreviewLoader & ploader)
-{
- // Generate the LaTeX snippet.
- string const snippet = latexString();
-
- pimage_ = ploader.preview(snippet);
- if (pimage_)
- return;
-
- // If this is the first time of calling, connect to the
- // grfx::PreviewLoader signal that'll inform us when the preview image
- // is ready for loading.
- if (!connection_.connected()) {
- connection_ = ploader.imageReady.connect(
- boost::bind(&PreviewImpl::previewReady, this, _1));
- }
-
- ploader.add(snippet);
-}
-
+namespace {
-bool InsetFormula::PreviewImpl::usePreview() const
+string const latex_string(InsetFormula const & inset, Buffer const &)
{
- BufferView * view = parent_.view();
-
- if (!grfx::Previews::activated() ||
- parent_.par_->asNestInset()->editing() ||
- !view || !view->buffer())
- return false;
-
- // If the cached grfx::PreviewImage is invalid, update it.
- string const snippet = latexString();
- if (!pimage_ || snippet != pimage_->snippet()) {
- grfx::PreviewLoader & ploader =
- grfx::Previews::get().loader(view->buffer());
- pimage_ = ploader.preview(snippet);
- }
-
- if (!pimage_)
- return false;
-
- return pimage_->image();
+ ostringstream ls;
+ WriteStream wi(ls, false, false);
+ inset.par()->write(wi);
+ return ls.str();
}
+} // namespace anon
-string const InsetFormula::PreviewImpl::latexString() const
+
+void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
{
- ostringstream ls;
- WriteStream wi(ls, false, false);
- parent_.par_->write(wi);
- return ls.str().c_str();
+ string const snippet = latex_string(*this, ploader.buffer());
+ preview_->addPreview(snippet, ploader);
}
-void InsetFormula::PreviewImpl::previewReady(grfx::PreviewImage const & pimage)
+void InsetFormula::generatePreview(Buffer const & buffer) const
{
- // Check snippet against the Inset's current contents
- if (latexString() != pimage.snippet())
- return;
-
- pimage_ = &pimage;
- BufferView * view = parent_.view();
- if (view)
- view->updateInset(&parent_, false);
+ string const snippet = latex_string(*this, buffer);
+ preview_->addPreview(snippet, buffer);
+ preview_->startLoading(buffer);
}
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