-/*
-* 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 "math_cursor.h"
#include "math_parser.h"
-#include "math_charinset.h"
-#include "math_arrayinset.h"
-#include "math_metricsinfo.h"
-#include "math_deliminset.h"
#include "math_hullinset.h"
-#include "math_support.h"
#include "math_mathmlstream.h"
#include "textpainter.h"
#include "BufferView.h"
-#include "gettext.h"
#include "debug.h"
-#include "lyxrc.h"
-#include "funcrequest.h"
+#include "LColor.h"
+#include "lyx_main.h"
+#include "outputparams.h"
-#include "support/LOstream.h"
-#include "support/LAssert.h"
-#include "support/lyxlib.h"
-#include "support/systemcall.h"
-#include "support/filetools.h"
-
-#include "frontends/Alert.h"
-#include "frontends/LyXView.h"
#include "frontends/Painter.h"
-#include "graphics/PreviewedInset.h"
-#include "graphics/PreviewImage.h"
+#include "graphics/PreviewLoader.h"
+
+#include "insets/render_preview.h"
-#include <fstream>
+#include "support/std_sstream.h"
+#include <boost/bind.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;
-
-
-class InsetFormula::PreviewImpl : public grfx::PreviewedInset {
-public:
- ///
- PreviewImpl(InsetFormula & p) : PreviewedInset(p) {}
-
-private:
- ///
- bool previewWanted() const;
- ///
- string const latexString() const;
- ///
- InsetFormula & parent() const
- {
- return *static_cast<InsetFormula*>(inset());
- }
-};
-
+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)
: InsetFormulaBase(other),
par_(other.par_),
- preview_(new PreviewImpl(*this))
-{}
+ 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->owner()->view();
+ 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
{
WriteStream wi(os, false, false);
- os << par_->fileInsetLabel() << " ";
+ 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 (display()) {
+ if (0 && display()) {
+ Dimension dim;
TextMetricsInfo mi;
- par()->metricsT(mi);
- TextPainter tpain(par()->width(), par()->height());
- par()->drawT(tpain, 0, par()->ascent());
+ 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();
+ //metrics();
return tpain.textheight();
} else {
WriteStream wi(os, false, true);
}
-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");
}
-void InsetFormula::read(Buffer const *, LyXLex & lex)
+void InsetFormula::read(Buffer const &, LyXLex & lex)
{
mathed_parse_normal(par_, lex);
- metrics();
-}
-
-
-//ostream & operator<<(ostream & os, LyXCursor const & c)
-//{
-// os << '[' << c.x() << ' ' << c.y() << ' ' << c.pos() << ']';
-// return os;
-//}
-
-
-void InsetFormula::draw(BufferView * bv, LyXFont const & font,
- int y, float & xx, bool) const
-{
- // This initiates the loading of the preview, so should come
- // before the metrics are computed.
- preview_->setView(bv);
- bool const use_preview = preview_->previewReady();
-
- 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;
-
- MathPainterInfo pi(bv->painter());
-
- if (use_preview) {
- pi.pain.image(x, y - a, w, h,
- *(preview_->pimage()->image(*this, *bv)));
- } 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);
- if (lcolor.getX11Name(LColor::mathbg)
- != lcolor.getX11Name(LColor::background))
- pi.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
-
- if (mathcursor &&
- const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
- {
- mathcursor->drawSelection(pi);
- //pi.pain.rectangle(x, y - a, w, h, LColor::mathframe);
+ // 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;
+ }
}
-
- par_->draw(pi, x + 1, y);
}
-
- xx += w;
- xo_ = x;
- yo_ = y;
-
- setCursorVisible(false);
+ //metrics();
}
-vector<string> const InsetFormula::getLabelList() const
-{
- vector<string> res;
- par()->getLabelList(res);
- return res;
-}
+namespace {
-
-UpdatableInset::RESULT
-InsetFormula::localDispatch(BufferView * bv, FuncRequest const & ev)
+bool editing_inset(InsetFormula const * inset)
{
- RESULT result = DISPATCHED;
-
- switch (ev.action) {
-
- case LFUN_BREAKLINE:
- bv->lockedInsetStoreUndo(Undo::INSERT);
- mathcursor->breakLine();
- mathcursor->normalize();
- updateLocal(bv, true);
- break;
-
- case LFUN_MATH_NUMBER:
- {
- if (!hull())
- break;
- //lyxerr << "toggling all numbers\n";
- if (display()) {
- bv->lockedInsetStoreUndo(Undo::INSERT);
- bool old = par()->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:
- {
- if (!hull())
- break;
-
- bv->lockedInsetStoreUndo(Undo::INSERT);
-
- MathCursor::row_type row = mathcursor->hullRow();
- string old_label = hull()->label(row);
- string new_label = ev.argument;
-
- 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 = trim(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);
- }
+ return mathcursor &&
+ (const_cast<InsetFormulaBase const *>(mathcursor->formula()) ==
+ inset);
+}
-#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();
+} // namespace anon
- hull()->label(row, new_label);
- updateLocal(bv, true);
- break;
- }
+void InsetFormula::draw(PainterInfo & pi, int x, int y) const
+{
+ xo_ = x;
+ yo_ = y;
- case LFUN_MATH_MUTATE:
- {
- bv->lockedInsetStoreUndo(Undo::EDIT);
- int x;
- int y;
- mathcursor->getPos(x, y);
- mutate(ev.argument);
- mathcursor->setPos(x, y);
- mathcursor->normalize();
- updateLocal(bv, true);
- break;
- }
+ // The previews are drawn only when we're not editing the inset.
+ bool const use_preview = !editing_inset(this)
+ && RenderPreview::activated()
+ && preview_->previewReady();
- case LFUN_MATH_EXTERN:
- {
- bv->lockedInsetStoreUndo(Undo::EDIT);
- if (mathcursor)
- mathcursor->handleExtern(ev.argument);
- // re-compute inset dimension
- metrics(bv);
- updateLocal(bv, true);
- break;
- }
+ int const w = dim_.wid;
+ int const d = dim_.des;
+ int const a = dim_.asc;
+ int const h = a + d;
- 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;
- }
+ if (use_preview) {
+ // one pixel gap in front
+ preview_->draw(pi, x + 1, y);
+ } else {
+ 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))
+ p.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
- case LFUN_PASTESELECTION:
- {
- string const clip = bv->getClipboard();
- if (!clip.empty())
- mathed_parse_normal(par_, clip);
- break;
+ if (editing_inset(this)) {
+ mathcursor->drawSelection(pi);
+ //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
}
- default:
- result = InsetFormulaBase::localDispatch(bv, ev);
+ par_->draw(p, x, y);
}
-
- return result;
}
-bool InsetFormula::display() const
+void InsetFormula::getLabelList(Buffer const & buffer,
+ vector<string> & res) const
{
- return hullType() != "simple" && hullType() != "none";
+ par()->getLabelList(buffer, res);
}
-MathHullInset const * InsetFormula::hull() const
+InsetOld::Code InsetFormula::lyxCode() const
{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
-}
-
-
-MathHullInset * InsetFormula::hull()
-{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
-}
-
-Inset::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;
+ code == InsetOld::LABEL_CODE
+ || code == InsetOld::REF_CODE
+ || code == InsetOld::ERT_CODE;
}
-int InsetFormula::ascent(BufferView *, LyXFont const &) const
+void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
{
- return preview_->previewReady() ?
- preview_->pimage()->ascent() : 1 + par_->ascent();
-}
-
-
-int InsetFormula::descent(BufferView *, LyXFont const &) const
-{
- if (!preview_->previewReady())
- return 1 + par_->descent();
-
- int const descent = preview_->pimage()->descent();
- return display() ? descent + 12 : descent;
-}
-
-
-int InsetFormula::width(BufferView * bv, LyXFont const & font) const
-{
- metrics(bv, font);
- return preview_->previewReady() ?
- 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 par()->getType();
+ dim_ = dim;
}
void InsetFormula::mutate(string const & type)
{
- par()->mutate(type);
+ par_.nucleus()->mutate(type);
}
// preview stuff
//
-void InsetFormula::addPreview(grfx::PreviewLoader & ploader) const
+void InsetFormula::statusChanged() const
{
- preview_->addPreview(ploader);
+ LyX::cref().updateInset(this);
}
-void InsetFormula::generatePreview() const
+namespace {
+
+string const latex_string(InsetFormula const & inset, Buffer const &)
{
- preview_->generatePreview();
+ ostringstream os;
+ WriteStream wi(os, false, false);
+ inset.par()->write(wi);
+ return os.str();
}
+} // namespace anon
+
-bool InsetFormula::PreviewImpl::previewWanted() const
+void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
{
- return !parent().par_->asNestInset()->editing();
+ string const snippet = latex_string(*this, ploader.buffer());
+ preview_->addPreview(snippet, ploader);
}
-string const InsetFormula::PreviewImpl::latexString() const
+void InsetFormula::generatePreview(Buffer const & buffer) const
{
- ostringstream ls;
- WriteStream wi(ls, false, false);
- parent().par_->write(wi);
- return ls.str().c_str();
+ string const snippet = latex_string(*this, buffer);
+ preview_->addPreview(snippet, buffer);
+ preview_->startLoading(buffer);
}