-/*
-* 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 "lyx_main.h"
-#include "BufferView.h"
-#include "gettext.h"
-#include "debug.h"
-#include "frontends/Alert.h"
-#include "support/LOstream.h"
-#include "support/LAssert.h"
-#include "support/filetools.h" // LibFileSearch
-#include "frontends/LyXView.h"
-#include "frontends/Painter.h"
-#include "lyxrc.h"
#include "math_hullinset.h"
-#include "math_support.h"
#include "math_mathmlstream.h"
#include "textpainter.h"
-#include "preview.h"
-#include "graphics/GraphicsCacheItem.h"
+#include "debug.h"
+#include "latexrunparams.h"
+#include "support/std_sstream.h"
+
+
+#include "frontends/Painter.h"
+
+#include "graphics/PreviewedInset.h"
+#include "graphics/PreviewImage.h"
+
using std::ostream;
-using std::ifstream;
-using std::istream;
-using std::pair;
-using std::endl;
using std::vector;
-using std::getline;
+using std::auto_ptr;
+using std::endl;
+class InsetFormula::PreviewImpl : public lyx::graphics::PreviewedInset {
+public:
+ ///
+ PreviewImpl(InsetFormula & p) : PreviewedInset(p) {}
-InsetFormula::InsetFormula()
- : par_(MathAtom(new MathHullInset))
-{}
+private:
+ ///
+ bool previewWanted() const;
+ ///
+ string const latexString() const;
+ ///
+ InsetFormula & parent() const
+ {
+ return *static_cast<InsetFormula*>(inset());
+ }
+};
+
+
+
+InsetFormula::InsetFormula(bool chemistry)
+ : par_(MathAtom(new MathHullInset)),
+ preview_(new PreviewImpl(*this))
+{
+ if (chemistry)
+ mutate("chemistry");
+}
-InsetFormula::InsetFormula(MathInsetTypes t)
- : par_(MathAtom(new MathHullInset(t)))
+InsetFormula::InsetFormula(InsetFormula const & other)
+ : InsetFormulaBase(other),
+ par_(other.par_),
+ preview_(new PreviewImpl(*this))
{}
-InsetFormula::InsetFormula(string const & s)
+InsetFormula::InsetFormula(BufferView *)
+ : par_(MathAtom(new MathHullInset)),
+ preview_(new PreviewImpl(*this))
{
- if (s.size()) {
- bool res = mathed_parse_normal(par_, s);
+ //view_ = bv->owner()->view();
+}
- if (!res)
- res = mathed_parse_normal(par_, "$" + s + "$");
- if (!res) {
- lyxerr << "cannot interpret '" << s << "' as math\n";
- par_ = MathAtom(new MathHullInset(LM_OT_SIMPLE));
- }
- }
- metrics();
+InsetFormula::InsetFormula(string const & data)
+ : par_(MathAtom(new MathHullInset)),
+ preview_(new PreviewImpl(*this))
+{
+ if (!data.size())
+ return;
+ if (!mathed_parse_normal(par_, data))
+ lyxerr << "cannot interpret '" << data << "' as math" << endl;
}
-Inset * InsetFormula::clone(Buffer const &, bool) const
+
+InsetFormula::~InsetFormula()
+{}
+
+
+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,
+ LatexRunParams 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::ascii(Buffer const &, ostream & os, int) 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) const
{
return docbook(buf, os, false);
}
-int InsetFormula::docbook(Buffer const * buf, ostream & os, bool) const
+int InsetFormula::docbook(Buffer const & buf, ostream & os, bool) const
{
MathMLStream ms(os);
ms << MTag("equation");
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();
+ // 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
+void InsetFormula::draw(PainterInfo & pi, int x, int y) const
{
- metrics(bv, font);
-
- int const x = int(xx);
- int const w = par_->width();
- int const h = par_->height();
- int const a = par_->ascent();
-
- MathPainterInfo pi(bv->painter());
- pi.base.style = display() ? LM_ST_DISPLAY : 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);
- }
-
- par_->draw(pi, x, y);
-
- // preview stuff
- if (lyxrc.preview) {
- ostringstream os;
- WriteStream wi(os, false, false);
- par_->write(wi);
- if (preview(os.str(), preview_)) {
- lyxerr << "image could be drawn\n";
- pi.pain.image(x + w + 2, y - a + 1, w - 2, h - 2, *(preview_->image()));
- } else {
- pi.pain.fillRectangle(x + w, y - a, w, h, LColor::white);
+ cache(pi.base.bv);
+ // This initiates the loading of the preview, so should come
+ // before the metrics are computed.
+ bool const use_preview = preview_->previewReady();
+
+ int const w = dim_.wid;
+ int const d = dim_.des;
+ int const a = dim_.asc;
+ int const h = a + d;
+
+ if (use_preview) {
+ pi.pain.image(x + 1, y - a, w, h, // one pixel gap in front
+ *(preview_->pimage()->image()));
+ } 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);
+
+ if (mathcursor &&
+ const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
+ {
+ mathcursor->drawSelection(pi);
+ //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
}
- pi.pain.rectangle(x + w, y - a, w, h, LColor::mathframe);
- xx += w;
+
+ par_->draw(p, x + offset_, y);
}
- xx += w;
xo_ = x;
yo_ = y;
-
- setCursorVisible(false);
}
-vector<string> const InsetFormula::getLabelList() const
+void InsetFormula::getLabelList(vector<string> & res) const
{
- return hull()->getLabelList();
+ par()->getLabelList(res);
}
-UpdatableInset::RESULT
-InsetFormula::localDispatch(BufferView * bv, kb_action action,
- string const & arg)
+InsetOld::Code InsetFormula::lyxCode() const
{
- 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);
- hull()->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 (getType() == LM_OT_SIMPLE)
- hull()->mutate(LM_OT_EQUATION);
- else
- hull()->mutate(LM_OT_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);
- }
-
- return result;
+ return InsetOld::MATH_CODE;
}
-bool InsetFormula::display() const
+void InsetFormula::validate(LaTeXFeatures & features) const
{
- return getType() != LM_OT_SIMPLE;
+ par_->validate(features);
}
-MathHullInset const * InsetFormula::hull() const
+bool InsetFormula::insetAllowed(InsetOld::Code code) const
{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
+ return
+ code == InsetOld::LABEL_CODE
+ || code == InsetOld::REF_CODE
+ || code == InsetOld::ERT_CODE;
}
-MathHullInset * InsetFormula::hull()
+void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
{
- lyx::Assert(par_->asHullInset());
- return par_->asHullInset();
-}
+ view_ = m.base.bv;
+ if (preview_->previewReady()) {
+ dim.asc = preview_->pimage()->ascent();
+ dim.des = preview_->pimage()->descent();
+ // insert a one pixel gap in front of the formula
+ dim.wid = 1 + preview_->pimage()->width();
+ 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;
+ }
+ if (display()) {
+ offset_ = (m.base.textwidth - dim.wid) / 2;
+ dim.wid = m.base.textwidth;
+ } else {
+ offset_ = 0;
+ }
-Inset::Code InsetFormula::lyxCode() const
-{
- return Inset::MATH_CODE;
+ dim_ = dim;
}
-void InsetFormula::validate(LaTeXFeatures & features) const
+void InsetFormula::mutate(string const & type)
{
- par_->validate(features);
+ par_.nucleus()->mutate(type);
}
-bool InsetFormula::insetAllowed(Inset::Code code) const
-{
- return
- (code == Inset::LABEL_CODE && display())
- || code == Inset::REF_CODE
- || code == Inset::ERT_CODE;
-}
-
+//
+// preview stuff
+//
-int InsetFormula::ascent(BufferView *, LyXFont const &) const
+void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
{
- return par_->ascent() + 1;
+ preview_->addPreview(ploader);
}
-int InsetFormula::descent(BufferView *, LyXFont const &) const
+void InsetFormula::generatePreview() const
{
- return par_->descent() + 1;
+ preview_->generatePreview();
}
-int InsetFormula::width(BufferView * bv, LyXFont const & font) const
+bool InsetFormula::PreviewImpl::previewWanted() const
{
- metrics(bv, font);
- int const w = par_->width();
- // double the space for the preview if needed
- return lyxrc.preview ? 2 * w : w;
+ return !parent().par_->asNestInset()->editing();
}
-MathInsetTypes InsetFormula::getType() const
+string const InsetFormula::PreviewImpl::latexString() const
{
- return hull()->getType();
+ ostringstream ls;
+ WriteStream wi(ls, false, false);
+ parent().par_->write(wi);
+ return STRCONV(ls.str());
}
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