From: André Pönitz <poenitz@gmx.net>
Date: Fri, 19 Oct 2001 11:25:48 +0000 (+0000)
Subject: use stream-like syntax for LaTeX output
X-Git-Tag: 1.6.10~20464
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=5507c1ad69ef62f0790b66c797c6d89166795590;p=features.git

use stream-like syntax for LaTeX output
 (instead of inset.write(stream) functions)

prepare fix for proper font sizes in chapter heading etc...


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2899 a592a061-630c-0410-9148-cb99ea01b6c8
---

diff --git a/src/mathed/ChangeLog b/src/mathed/ChangeLog
index 9aef0b2763..550d77e4eb 100644
--- a/src/mathed/ChangeLog
+++ b/src/mathed/ChangeLog
@@ -1,11 +1,16 @@
 
+2001-10-17  André Pönitz  <poenitz@gmx.net>
+
+	* math_inset.h:
+	* *.[Ch]: make output more stream-like
+
 2001-10-17  André Pönitz  <poenitz@gmx.net>
 
 	* formula.C:
 	* array.C: add missing/broken  writeNormal()
 
 	* math_lefteqn.[Ch]: some visual support for \lefteqn
-	
+
 
 2001-10-10  André Pönitz  <poenitz@gmx.net>
 
diff --git a/src/mathed/Makefile.am b/src/mathed/Makefile.am
index 15fadc46a0..8b9a43e04a 100644
--- a/src/mathed/Makefile.am
+++ b/src/mathed/Makefile.am
@@ -24,6 +24,8 @@ libmathed_la_SOURCES = \
 	math_atom.h \
 	math_binominset.C \
 	math_binominset.h \
+	math_boxinset.C \
+	math_boxinset.h \
 	math_charinset.C \
 	math_charinset.h \
 	math_cursor.C \
diff --git a/src/mathed/array.C b/src/mathed/array.C
index c91d52ed84..2c87130997 100644
--- a/src/mathed/array.C
+++ b/src/mathed/array.C
@@ -171,7 +171,7 @@ string charSequence(MathArray::const_iterator it, MathArray::const_iterator end)
 }
 
 
-void MathArray::write(ostream & os, bool fragile) const
+void MathArray::write(MathWriteInfo & wi) const
 {
 	for (const_iterator it = begin(); it != end(); ++it) {	
 		MathInset * p = it->nucleus();
@@ -190,10 +190,10 @@ void MathArray::write(ostream & os, bool fragile) const
 		} else
 */
 		if (MathScriptInset const * q = asScript(it)) {
-			q->write(p, os, fragile);
+			q->write(p, wi);
 			++it;
 		} else {
-			p->write(os, fragile);
+			p->write(wi);
 		}
 	}
 }
diff --git a/src/mathed/array.h b/src/mathed/array.h
index 2f7cbe6558..db0f1d4ea5 100644
--- a/src/mathed/array.h
+++ b/src/mathed/array.h
@@ -22,6 +22,8 @@
 
 class MathScriptInset;
 class MathMacro;
+class MathWriteInfo;
+class MathMetricsInfo;
 class LaTeXFeatures;
 
 #ifdef __GNUG__
@@ -96,7 +98,7 @@ public:
 	///
 	MathAtom const & at(size_type pos) const;
 	///
-	void write(std::ostream &, bool) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
diff --git a/src/mathed/formula.C b/src/mathed/formula.C
index 6a427b9c41..400bbaf813 100644
--- a/src/mathed/formula.C
+++ b/src/mathed/formula.C
@@ -90,16 +90,19 @@ void InsetFormula::write(Buffer const * buf, ostream & os) const
 }
 
 
-int InsetFormula::latex(Buffer const *, ostream & os, bool fragile, bool) const
+int InsetFormula::latex(Buffer const * buf, ostream & os, bool fragil, bool)
+	const
 {
-	par_->write(os, fragile);
+	MathWriteInfo wi(buf, os, fragil);
+	par_->write(wi);
 	return 1;
 }
 
 
-int InsetFormula::ascii(Buffer const *, ostream & os, int) const
+int InsetFormula::ascii(Buffer const * buf, ostream & os, int) const
 {
-	par_->write(os, false);
+	MathWriteInfo wi(buf, os, false);
+	par_->write(wi);
 	return 1;
 }
 
@@ -123,7 +126,7 @@ void InsetFormula::read(Buffer const *, LyXLex & lex)
 }
 
 
-void InsetFormula::draw(BufferView * bv, LyXFont const &,
+void InsetFormula::draw(BufferView * bv, LyXFont const & font,
 			int y, float & xx, bool) const
 {
 	int x = int(xx) - 1;
@@ -132,7 +135,7 @@ void InsetFormula::draw(BufferView * bv, LyXFont const &,
 	MathInset::workwidth = bv->workWidth();
 	Painter & pain = bv->painter();
 
-	metrics();
+	metrics(bv, &font);
 	int w = par_->width();
 	int h = par_->height();
 	int a = par_->ascent();
@@ -150,12 +153,6 @@ void InsetFormula::draw(BufferView * bv, LyXFont const &,
 }
 
 
-void InsetFormula::metrics() const 
-{
-	par_->metrics(display() ? LM_ST_DISPLAY : LM_ST_TEXT);
-}
-
-
 vector<string> const InsetFormula::getLabelList() const
 {
 	return mat()->getLabelList();
@@ -302,7 +299,7 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
 }
 
 
-void InsetFormula::handleExtern(const string & arg, BufferView *)
+void InsetFormula::handleExtern(const string & arg, BufferView * bv)
 {
 	// where are we?
 	MathArray & ar = mathcursor->cursor().cell();
@@ -337,7 +334,7 @@ void InsetFormula::handleExtern(const string & arg, BufferView *)
 	mathcursor->end();
 
 	// re-compute inset dimension
-	metrics();
+	metrics(bv);
 }
 
 
@@ -391,9 +388,9 @@ int InsetFormula::descent(BufferView *, LyXFont const &) const
 }
 
 
-int InsetFormula::width(BufferView *, LyXFont const &) const
+int InsetFormula::width(BufferView * bv, LyXFont const & font) const
 {
-	metrics();
+	metrics(bv, &font);
 	return par_->width();
 }
 
diff --git a/src/mathed/formula.h b/src/mathed/formula.h
index 501f1db2b1..659c80a1ca 100644
--- a/src/mathed/formula.h
+++ b/src/mathed/formula.h
@@ -44,8 +44,6 @@ public:
 	int width(BufferView *, LyXFont const &) const;
 	///
 	void draw(BufferView *, LyXFont const &, int, float &, bool) const;
-	///
-	void metrics() const;
 
 	///
 	void write(Buffer const *, std::ostream &) const;
diff --git a/src/mathed/formulabase.C b/src/mathed/formulabase.C
index f233c7851d..f7b9e49b33 100644
--- a/src/mathed/formulabase.C
+++ b/src/mathed/formulabase.C
@@ -104,6 +104,7 @@ MathArrayInset * matrixpar(MathInset::idx_type & idx)
 
 
 InsetFormulaBase::InsetFormulaBase()
+	: view_(0), font_(0)
 {
 	// This is needed as long the math parser is not re-entrant
 	MathMacroTable::builtinMacros();
@@ -116,6 +117,17 @@ void InsetFormulaBase::validate(LaTeXFeatures &) const
 {}
 
 
+void InsetFormulaBase::metrics(BufferView * bv, LyXFont const * f) const 
+{
+	if (bv)
+		view_ = bv;
+	if (f)
+		font_ = f;
+	MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
+	par()->metrics(mi);
+}
+
+
 string const InsetFormulaBase::editMessage() const
 {
 	return _("Math editor mode");
@@ -128,7 +140,7 @@ void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 		lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 
 	mathcursor = new MathCursor(this, x == 0);
-	metrics();
+	metrics(bv);
 	// if that is removed, we won't get the magenta box when entering an
 	// inset for the first time
 	bv->updateInset(this, false);
@@ -233,7 +245,7 @@ vector<string> const InsetFormulaBase::getLabelList() const
 
 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 {
-	metrics();
+	metrics(bv);
 	bv->updateInset(this, dirty);
 }
 
@@ -677,8 +689,7 @@ void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 		//	sel = "";
 		//else
 
-		string sel = bv->getLyXText()->selectionAsString(bv->buffer(),
-								 false);
+		string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 
 		InsetFormulaBase * f;
 		if (sel.empty()) {
diff --git a/src/mathed/formulabase.h b/src/mathed/formulabase.h
index f35889641e..3d45a7814f 100644
--- a/src/mathed/formulabase.h
+++ b/src/mathed/formulabase.h
@@ -89,12 +89,16 @@ public:
 	///
 	virtual MathAtom & par() = 0;
 	///
-	virtual void metrics() const = 0;
+	virtual void metrics(BufferView * bv = 0, LyXFont const * font = 0) const;
 	///
 	virtual void updateLocal(BufferView * bv, bool mark_dirty);
 private:
 	/// unimplemented
 	void operator=(const InsetFormulaBase &);
+	///
+	mutable BufferView * view_;	
+	///
+	mutable LyXFont const * font_;
 };
 
 // We don't really mess want around with mathed stuff outside mathed.
diff --git a/src/mathed/formulamacro.C b/src/mathed/formulamacro.C
index d8b620d87d..b0188770d3 100644
--- a/src/mathed/formulamacro.C
+++ b/src/mathed/formulamacro.C
@@ -61,7 +61,10 @@ InsetFormulaMacro::InsetFormulaMacro(string const & s)
 {
 	string name = mathed_parse_macro(s);
 	setInsetName(name);
-	metrics();
+#ifdef WITH_WARNINGS
+#warning "metrics disabled"
+#endif
+	//metrics();
 }
 
 
@@ -71,23 +74,27 @@ Inset * InsetFormulaMacro::clone(Buffer const &, bool) const
 }
 
 
-void InsetFormulaMacro::write(Buffer const *, ostream & os) const
+void InsetFormulaMacro::write(Buffer const * buf, ostream & os) const
 {
 	os << "FormulaMacro ";
-	par()->write(os, false);
+	MathWriteInfo wi(buf, os, false);
+	par()->write(wi);
 }
 
 
-int InsetFormulaMacro::latex(Buffer const *, ostream & os, bool fragile, 
+int InsetFormulaMacro::latex(Buffer const * buf, ostream & os, bool fragile, 
 			     bool /*free_spacing*/) const
 {
-	par()->write(os, fragile);
+	MathWriteInfo wi(buf, os, fragile);
+	par()->write(wi);
 	return 2;
 }
 
-int InsetFormulaMacro::ascii(Buffer const *, ostream & os, int) const
+
+int InsetFormulaMacro::ascii(Buffer const * buf, ostream & os, int) const
 {
-	par()->write(os, false);
+	MathWriteInfo wi(buf, os, false);
+	par()->write(wi);
 	return 0;
 }
 
@@ -108,6 +115,7 @@ void InsetFormulaMacro::read(Buffer const *, LyXLex & lex)
 {
 	string name = mathed_parse_macro(lex);
 	setInsetName(name);
+	lyxerr << "metrics disabled";
 	metrics();
 }
 
@@ -130,9 +138,9 @@ int InsetFormulaMacro::descent(BufferView *, LyXFont const &) const
 }
 
 
-int InsetFormulaMacro::width(BufferView *, LyXFont const & f) const
+int InsetFormulaMacro::width(BufferView * bv, LyXFont const & f) const
 {
-	metrics();
+	metrics(bv, &f);
 	return 10 + lyxfont::width(prefix(), f) + par()->width();
 }
 
@@ -193,12 +201,6 @@ MathInsetTypes InsetFormulaMacro::getType() const
 }
 
 
-void InsetFormulaMacro::metrics() const
-{
-	par()->metrics(LM_ST_TEXT);
-}
-
-
 void InsetFormulaMacro::draw(BufferView * bv, LyXFont const & f,
 			     int baseline, float & x, bool /*cleared*/) const
 {
diff --git a/src/mathed/formulamacro.h b/src/mathed/formulamacro.h
index fdf37e37fa..19734215f2 100644
--- a/src/mathed/formulamacro.h
+++ b/src/mathed/formulamacro.h
@@ -68,8 +68,6 @@ public:
 	///
 	MathInsetTypes getType() const;
 	///
-	void metrics() const;
-	///
 	MathAtom const & par() const;
 	///
 	MathAtom & par();
diff --git a/src/mathed/math_arrayinset.C b/src/mathed/math_arrayinset.C
index ae9cfabbf4..25c63eb7ce 100644
--- a/src/mathed/math_arrayinset.C
+++ b/src/mathed/math_arrayinset.C
@@ -22,9 +22,9 @@ MathInset * MathArrayInset::clone() const
 }
 
 
-void MathArrayInset::write(std::ostream & os, bool fragile) const
+void MathArrayInset::write(MathWriteInfo & os) const
 {
-	if (fragile)
+	if (os.fragile)
 		os << "\\protect";
 	os << "\\begin{array}";
 
@@ -36,16 +36,19 @@ void MathArrayInset::write(std::ostream & os, bool fragile) const
 		os << colinfo_[col].align_;
 	os << "}\n";
 
-	MathGridInset::write(os, fragile);
+	MathGridInset::write(os);
 
-	if (fragile)
+	if (os.fragile)
 		os << "\\protect";
 	os << "\\end{array}\n";
 }
 
 
-void MathArrayInset::metrics(MathStyles st) const
+void MathArrayInset::metrics(MathMetricsInfo const & st) const
 {
-	MathGridInset::metrics(st == LM_ST_DISPLAY ? LM_ST_TEXT : st);
+	MathMetricsInfo m = st;
+	if (m.size == LM_ST_DISPLAY)
+		m.size = LM_ST_TEXT;
+	MathGridInset::metrics(m);
 }
 
diff --git a/src/mathed/math_arrayinset.h b/src/mathed/math_arrayinset.h
index ee7341d843..79fa2130da 100644
--- a/src/mathed/math_arrayinset.h
+++ b/src/mathed/math_arrayinset.h
@@ -18,9 +18,9 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	MathArrayInset * asArrayInset() { return this; }
 };
diff --git a/src/mathed/math_binominset.C b/src/mathed/math_binominset.C
index 5785777615..1f04084c26 100644
--- a/src/mathed/math_binominset.C
+++ b/src/mathed/math_binominset.C
@@ -28,11 +28,12 @@ int MathBinomInset::dw() const
 }
 
 
-void MathBinomInset::metrics(MathStyles st) const
+void MathBinomInset::metrics(MathMetricsInfo const & st) const
 {
-	size_    = smallerStyleFrac(st);
-	xcell(0).metrics(size_);
-	xcell(1).metrics(size_);
+	MathMetricsInfo m = st;
+	m.size   = smallerStyleFrac(m.size);
+	xcell(0).metrics(m);
+	xcell(1).metrics(m);
 	ascent_  = xcell(0).height() + 4 + 5;
 	descent_ = xcell(1).height() + 4 - 5; 
 	width_   = std::max(xcell(0).width(), xcell(1).width()) + 2 * dw() + 4; 
@@ -51,13 +52,9 @@ void MathBinomInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathBinomInset::write(std::ostream & os, bool fragile) const
+void MathBinomInset::write(MathWriteInfo & os) const
 {
-	os << '{';
-	cell(0).write(os, fragile);
-	os << " \\choose ";
-	cell(1).write(os, fragile);
-	os << '}';
+	os << '{' << cell(0) << " \\choose " << cell(1) << '}';
 }
 
 
diff --git a/src/mathed/math_binominset.h b/src/mathed/math_binominset.h
index 2bb97451dd..b991a2700a 100644
--- a/src/mathed/math_binominset.h
+++ b/src/mathed/math_binominset.h
@@ -18,11 +18,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 private:
diff --git a/src/mathed/math_boxinset.C b/src/mathed/math_boxinset.C
new file mode 100644
index 0000000000..fa2a61909c
--- /dev/null
+++ b/src/mathed/math_boxinset.C
@@ -0,0 +1,81 @@
+#ifdef __GNUG__
+#pragma implementation
+#endif
+
+#include "math_boxinset.h"
+#include "support/LOstream.h"
+#include "LColor.h"
+#include "debug.h"
+#include "Painter.h"
+#include "math_cursor.h"
+#include "insets/insettext.h"
+
+
+MathBoxInset::MathBoxInset(string const & name)
+	: MathDimInset(), name_(name), text_(new InsetText), buffer_(0)
+{
+	lyxerr << "creating new " << name << endl;
+}
+
+
+MathBoxInset::MathBoxInset(MathBoxInset const & m)
+	:	MathDimInset(*this), name_(m.name_), text_(0), buffer_(m.buffer_)
+{
+	if (!m.buffer_)
+		cerr << "no buffer\n";
+	else
+		text_ = static_cast<InsetText *>(m.text_->clone(*m.buffer_, false));
+}
+
+
+MathBoxInset::~MathBoxInset()
+{
+	delete text_;
+}
+
+
+MathInset * MathBoxInset::clone() const
+{
+	return new MathBoxInset(*this);
+}
+
+
+void MathBoxInset::write(MathWriteInfo & os) const
+{
+	os << "\\" << name_ << "{" << cell(0) << "}";
+}
+
+
+void MathBoxInset::writeNormal(std::ostream & os) const
+{
+	os << "[mbox ";
+	//text_->write(buffer(), os);
+	os << "] ";
+}
+
+
+void MathBoxInset::metrics(MathMetricsInfo const & st) const
+{
+	size_ = st;
+	if (text_ && st.view && st.font) {
+		ascent_  = text_->ascent(st.view, *st.font)  + 2;
+		descent_ = text_->descent(st.view, *st.font) + 2;
+		width_   = text_->width(st.view, *st.font)   + 4;
+	} else {
+		ascent_  = 10;
+		descent_ = 0;
+		width_   = 10;
+	}
+}
+
+
+void MathBoxInset::draw(Painter & pain, int x, int y) const
+{
+	float fx = x + 2;
+
+	if (text_ && size_.view && size_.font)
+		text_->draw(size_.view, *(size_.font), y, fx, false);
+	if (mathcursor && mathcursor->isInside(this))
+		pain.rectangle(x, y - ascent(), xcell(0).width(), height(),
+			LColor::mathframe);
+}
diff --git a/src/mathed/math_boxinset.h b/src/mathed/math_boxinset.h
new file mode 100644
index 0000000000..9b0bd58123
--- /dev/null
+++ b/src/mathed/math_boxinset.h
@@ -0,0 +1,51 @@
+// -*- C++ -*-
+#ifndef MATH_BOXINSET_H
+#define MATH_BOXINSET_H
+
+#include "math_diminset.h"
+#include "LString.h"
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+class InsetText;
+class BufferView;
+class Buffer;
+class LyXFont;
+
+/// Support for \\mbox
+
+class MathBoxInset : public MathDimInset {
+public:
+	///
+	explicit MathBoxInset(string const &);
+	///
+	MathBoxInset(MathBoxInset const &);
+	///
+	~MathBoxInset();
+	///
+	MathInset * clone() const;
+	///
+	void draw(Painter &, int x, int y) const;
+	///
+	void write(MathWriteInfo & os) const;
+	///
+	void writeNormal(std::ostream &) const;
+	///
+	void metrics(MathMetricsInfo const & st) const;
+	/// identifies BoxInsets
+	MathBoxInset * asBoxInset() { return this; }
+
+private:
+	/// unimplemented
+	void operator=(MathBoxInset const &);
+
+	///
+	string name_;
+	///
+	InsetText * text_;
+	///
+	mutable Buffer * buffer_;	
+};
+#endif
diff --git a/src/mathed/math_charinset.C b/src/mathed/math_charinset.C
index 8c1ca673b4..44d6884541 100644
--- a/src/mathed/math_charinset.C
+++ b/src/mathed/math_charinset.C
@@ -76,7 +76,7 @@ int MathCharInset::width() const
 }
 
 
-void MathCharInset::metrics(MathStyles st) const
+void MathCharInset::metrics(MathMetricsInfo const & st) const
 {
 	size_ = st;
 }
@@ -87,7 +87,7 @@ void MathCharInset::draw(Painter & pain, int x, int y) const
 	xo(x);
 	yo(y);
 	//lyxerr << "drawing '" << char_ << "' code: " << code_ << endl;
-	drawChar(pain, code_, size_, x, y, char_);
+	drawChar(pain, code_, size_.size, x, y, char_);
 }
 
 
@@ -111,11 +111,11 @@ void MathCharInset::writeRaw(std::ostream & os) const
 }
 
 
-void MathCharInset::write(std::ostream & os, bool) const
+void MathCharInset::write(MathWriteInfo & os) const
 {
-	writeHeader(os);
-	writeRaw(os);
-	writeTrailer(os);
+	writeHeader(os.os);
+	writeRaw(os.os);
+	writeTrailer(os.os);
 }
 
 
diff --git a/src/mathed/math_charinset.h b/src/mathed/math_charinset.h
index 37f6029e07..fc024338fe 100644
--- a/src/mathed/math_charinset.h
+++ b/src/mathed/math_charinset.h
@@ -23,11 +23,11 @@ public:
 	///
 	MathTextCodes nativeCode(char c) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeHeader(std::ostream &) const;
 	///
diff --git a/src/mathed/math_cursor.C b/src/mathed/math_cursor.C
index 5c4840ba13..9623694133 100644
--- a/src/mathed/math_cursor.C
+++ b/src/mathed/math_cursor.C
@@ -460,7 +460,10 @@ void MathCursor::niceInsert(MathAtom const & t)
 		right();  // do not push for e.g. MathSymbolInset
 		selPaste();
 	}
-	p->metrics(p->size());
+#ifdef WITH_WARNINGS
+#warning "redraw disabled"
+#endif
+	//p->metrics(p->size());
 }
 
 
@@ -936,7 +939,8 @@ void MathCursor::normalize() const
 		lyxerr << "this should not really happen - 2: "
 			<< pos() << " " << size() <<  " in idx: " << it->idx()
 			<< " in atom: '";
-		it->par()->write(lyxerr, false);
+		MathWriteInfo wi(0, lyxerr, false);
+		it->par()->write(wi);
 		lyxerr << "\n";
 		dump("error 4");
 	}
diff --git a/src/mathed/math_decorationinset.C b/src/mathed/math_decorationinset.C
index 4b35c789f3..becc4183f4 100644
--- a/src/mathed/math_decorationinset.C
+++ b/src/mathed/math_decorationinset.C
@@ -62,7 +62,7 @@ bool MathDecorationInset::wide() const
 }
 
 
-void MathDecorationInset::metrics(MathStyles st) const
+void MathDecorationInset::metrics(MathMetricsInfo const & st) const
 {
 	xcell(0).metrics(st);
 	size_    = st;
@@ -96,13 +96,11 @@ void MathDecorationInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathDecorationInset::write(ostream & os, bool fragile) const
+void MathDecorationInset::write(MathWriteInfo & os) const
 {
-	if (fragile && protect())
+	if (os.fragile && protect())
 		os << "\\protect";
-	os << '\\' << name_ << '{';
-	cell(0).write(os, fragile);  
-	os << '}';
+	os << '\\' << name_ << '{' << cell(0) << '}';
 }
 
 
diff --git a/src/mathed/math_decorationinset.h b/src/mathed/math_decorationinset.h
index 200b8ea998..a7a8effa82 100644
--- a/src/mathed/math_decorationinset.h
+++ b/src/mathed/math_decorationinset.h
@@ -22,9 +22,9 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void writeNormal(std::ostream & os) const;
 	///
diff --git a/src/mathed/math_deliminset.C b/src/mathed/math_deliminset.C
index a4f7efafd1..dfa8884469 100644
--- a/src/mathed/math_deliminset.C
+++ b/src/mathed/math_deliminset.C
@@ -42,11 +42,10 @@ string MathDelimInset::latexName(string const & name)
 }
 
 
-void MathDelimInset::write(std::ostream & os, bool fragile) const
+void MathDelimInset::write(MathWriteInfo & os) const
 {
-	os << "\\left"  << latexName(left_);
-	cell(0).write(os, fragile);
-	os << "\\right" << latexName(right_);
+	os << "\\left" << latexName(left_) << cell(0)
+	   << "\\right" << latexName(right_);
 }
 
 
@@ -61,12 +60,12 @@ int MathDelimInset::dw() const
 }
 
 
-void MathDelimInset::metrics(MathStyles st) const
+void MathDelimInset::metrics(MathMetricsInfo const & st) const
 {
 	xcell(0).metrics(st);
 	size_    = st;
 	int a, d, w;
-	mathed_char_dim(LM_TC_VAR, st,'I', a, d, w);
+	mathed_char_dim(LM_TC_VAR, size_.size,'I', a, d, w);
 	int h0   = (a + d) / 2;
 	int a0   = std::max(xcell(0).ascent(), a)   - h0;
 	int d0   = std::max(xcell(0).descent(), d)  + h0;
diff --git a/src/mathed/math_deliminset.h b/src/mathed/math_deliminset.h
index 23cf45e376..89240db8cb 100644
--- a/src/mathed/math_deliminset.h
+++ b/src/mathed/math_deliminset.h
@@ -22,9 +22,9 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 private:
 	///
 	int dw() const;
diff --git a/src/mathed/math_dotsinset.C b/src/mathed/math_dotsinset.C
index f7b6238dc0..4c142c34c8 100644
--- a/src/mathed/math_dotsinset.C
+++ b/src/mathed/math_dotsinset.C
@@ -32,9 +32,9 @@ void MathDotsInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathDotsInset::metrics(MathStyles st) const
+void MathDotsInset::metrics(MathMetricsInfo const & st) const
 {
-	size(st);
+	size_ = st;
 	mathed_char_dim(LM_TC_VAR, size(), 'M', ascent_, descent_, width_);
 	switch (name_[0]) {
 		case 'l': dh_ = 0; break;
@@ -45,7 +45,7 @@ void MathDotsInset::metrics(MathStyles st) const
 } 
 
 
-void MathDotsInset::write(ostream & os, bool /* fragile */) const
+void MathDotsInset::write(MathWriteInfo & os) const
 {
 	os << '\\' << name_ << ' ';
 }
diff --git a/src/mathed/math_dotsinset.h b/src/mathed/math_dotsinset.h
index cda4a77f7a..2fcc333c25 100644
--- a/src/mathed/math_dotsinset.h
+++ b/src/mathed/math_dotsinset.h
@@ -19,11 +19,11 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 protected:
 	/// cache for the thing's heigth
 	mutable int dh_;
diff --git a/src/mathed/math_factory.C b/src/mathed/math_factory.C
index 280b48f5d7..88b8472848 100644
--- a/src/mathed/math_factory.C
+++ b/src/mathed/math_factory.C
@@ -2,6 +2,7 @@
 
 #include "math_parser.h"
 #include "math_binominset.h"
+//#include "math_boxinset.h"
 #include "math_decorationinset.h"
 #include "math_dotsinset.h"
 #include "math_funcinset.h"
@@ -62,6 +63,8 @@ MathAtom createMathInset(latexkeys const * l)
 		return MathAtom(new MathSpaceInset(l->id));
 	case LM_TK_DOTS:
 		return MathAtom(new MathDotsInset(l->name));
+	//case LM_TK_BOX:
+	//	return MathAtom(new MathBoxInset(l->name));
 	}
 	return MathAtom(new MathFuncInset(l->name));
 }
diff --git a/src/mathed/math_fracinset.C b/src/mathed/math_fracinset.C
index e4e08935ed..057366ba7b 100644
--- a/src/mathed/math_fracinset.C
+++ b/src/mathed/math_fracinset.C
@@ -19,9 +19,10 @@ MathInset * MathFracInset::clone() const
 }
 
 
-void MathFracInset::metrics(MathStyles st) const
+void MathFracInset::metrics(MathMetricsInfo const & st) const
 {
-	size_    = smallerStyleFrac(st);
+	size_    = st;
+	size_.size = smallerStyleFrac(size_.size);
 	xcell(0).metrics(size_);
 	xcell(1).metrics(size_);
 	width_   = std::max(xcell(0).width(), xcell(1).width()) + 4; 
@@ -42,21 +43,12 @@ void MathFracInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathFracInset::write(std::ostream & os, bool fragile) const
+void MathFracInset::write(MathWriteInfo & os) const
 {
-	if (atop_) {
-		os << "{";
-		cell(0).write(os, fragile);
-		os << "\\atop ";
-		cell(1).write(os, fragile);
-		os << '}';
-	} else {
-		os << "\\frac{";
-		cell(0).write(os, fragile);
-		os << "}{";
-		cell(1).write(os, fragile);
-		os << '}';
-	}
+	if (atop_)
+		os << '{' << cell(0) << "\\atop " << cell(1) << '}';
+	else
+		os << "\\frac{" << cell(0) << "}{" << cell(1) << '}';
 }
 
 
diff --git a/src/mathed/math_fracinset.h b/src/mathed/math_fracinset.h
index d60ca9bd08..0c227c6f8c 100644
--- a/src/mathed/math_fracinset.h
+++ b/src/mathed/math_fracinset.h
@@ -18,11 +18,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 public:
diff --git a/src/mathed/math_funcinset.C b/src/mathed/math_funcinset.C
index 9932510580..b5651b9df7 100644
--- a/src/mathed/math_funcinset.C
+++ b/src/mathed/math_funcinset.C
@@ -37,7 +37,7 @@ void MathFuncInset::setName(string const & n)
 }
 
 
-void MathFuncInset::write(std::ostream & os, bool /* fragile */) const
+void MathFuncInset::write(MathWriteInfo & os) const
 {
 	os << "\\" << name_ << ' ';
 }
@@ -49,10 +49,10 @@ void MathFuncInset::writeNormal(std::ostream & os) const
 }
 
 
-void MathFuncInset::metrics(MathStyles st) const 
+void MathFuncInset::metrics(MathMetricsInfo const & st) const 
 {
 	size_ = st;
-	mathed_string_dim(LM_TC_TEX, size_, name_, ascent_, descent_, width_);
+	mathed_string_dim(LM_TC_TEX, size_.size, name_, ascent_, descent_, width_);
 }
 
 
@@ -60,5 +60,5 @@ void MathFuncInset::draw(Painter & pain, int x, int y) const
 { 
 	xo(x);
 	yo(y);
-	drawStr(pain, LM_TC_TEX, size_, x, y, name_);
+	drawStr(pain, LM_TC_TEX, size_.size, x, y, name_);
 }
diff --git a/src/mathed/math_funcinset.h b/src/mathed/math_funcinset.h
index 3a773df15f..b81cc60907 100644
--- a/src/mathed/math_funcinset.h
+++ b/src/mathed/math_funcinset.h
@@ -20,11 +20,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
diff --git a/src/mathed/math_funcliminset.C b/src/mathed/math_funcliminset.C
index d281b9e23b..f8f03cda1c 100644
--- a/src/mathed/math_funcliminset.C
+++ b/src/mathed/math_funcliminset.C
@@ -19,11 +19,11 @@ MathInset * MathFuncLimInset::clone() const
 
 bool MathFuncLimInset::isScriptable() const
 {
-	return size_ == LM_ST_DISPLAY;
+	return size_.size == LM_ST_DISPLAY;
 }
 
 
-void MathFuncLimInset::write(ostream & os, bool /* fragile */) const
+void MathFuncLimInset::write(MathWriteInfo & os) const
 {
 	os << '\\' << sym_->name << ' ';
 }
@@ -35,10 +35,11 @@ void MathFuncLimInset::writeNormal(ostream & os) const
 }
 
 
-void MathFuncLimInset::metrics(MathStyles st) const
+void MathFuncLimInset::metrics(MathMetricsInfo const & st) const
 {
-	size(st);
-	mathed_string_dim(LM_TC_TEXTRM, size(), sym_->name, ascent_, descent_, width_);
+	size_ = st;
+	mathed_string_dim(LM_TC_TEXTRM, size_.size, sym_->name,
+		ascent_, descent_, width_);
 }
 
 
@@ -46,5 +47,5 @@ void MathFuncLimInset::draw(Painter & pain, int x, int y) const
 {  
 	xo(x);
 	yo(y);
-	drawStr(pain, LM_TC_TEXTRM, size_, x, y, sym_->name);
+	drawStr(pain, LM_TC_TEXTRM, size_.size, x, y, sym_->name);
 }
diff --git a/src/mathed/math_funcliminset.h b/src/mathed/math_funcliminset.h
index dce77a090a..70f0e992b8 100644
--- a/src/mathed/math_funcliminset.h
+++ b/src/mathed/math_funcliminset.h
@@ -16,11 +16,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
diff --git a/src/mathed/math_gridinset.C b/src/mathed/math_gridinset.C
index c7edf132a5..4b3c16d606 100644
--- a/src/mathed/math_gridinset.C
+++ b/src/mathed/math_gridinset.C
@@ -132,7 +132,7 @@ LyXLength MathGridInset::vskip(row_type row) const
 }
 
 
-void MathGridInset::metrics(MathStyles st) const
+void MathGridInset::metrics(MathMetricsInfo const & st) const
 {
 	// let the cells adjust themselves
 	MathNestInset::metrics(st);
@@ -264,13 +264,11 @@ void MathGridInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathGridInset::write(std::ostream & os, bool fragile) const
+void MathGridInset::write(MathWriteInfo & os) const
 {
 	for (row_type row = 0; row < nrows(); ++row) {
-		for (col_type col = 0; col < ncols(); ++col) {
-			cell(index(row, col)).write(os, fragile);
-			os << eocString(col);
-		}
+		for (col_type col = 0; col < ncols(); ++col) 
+			os << cell(index(row, col)) << eocString(col);
 		os << eolString(row);
 	}
 }
diff --git a/src/mathed/math_gridinset.h b/src/mathed/math_gridinset.h
index 8253ec3066..c0b64f03e7 100644
--- a/src/mathed/math_gridinset.h
+++ b/src/mathed/math_gridinset.h
@@ -64,11 +64,11 @@ public:
 	///
 	MathGridInset(int m, int n, char valign, string const & halign);
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
diff --git a/src/mathed/math_hash.C b/src/mathed/math_hash.C
index 80f5dbfe63..888ff8748a 100644
--- a/src/mathed/math_hash.C
+++ b/src/mathed/math_hash.C
@@ -94,6 +94,7 @@ latexkeys_a wordlist_array[] =
 	{"mathsf",  LM_TK_FONT, LM_TC_SF},
 	{"mathtt",  LM_TK_FONT, LM_TC_TT},
 	{"max",  LM_TK_FUNCLIM, 0},
+	//{"mbox",  LM_TK_BOX, 0},
 	{"min",  LM_TK_FUNCLIM, 0},
 	{"newcommand",  LM_TK_NEWCOMMAND, 0 },
 	{"nolimits",  LM_TK_LIMIT, static_cast<unsigned>(-1)},
@@ -154,6 +155,7 @@ MathTokenEnum tokenEnum(const string & font)
 	return LM_TK_SYM;
 }
 
+
 MathSymbolTypes symbolType(const string & type)
 {
 	if (type == "mathrel")
diff --git a/src/mathed/math_inset.C b/src/mathed/math_inset.C
index b4e340b508..0620aefdbd 100644
--- a/src/mathed/math_inset.C
+++ b/src/mathed/math_inset.C
@@ -28,7 +28,7 @@ int MathInset::workwidth;
 
 
 MathInset::MathInset()
-	: size_(LM_ST_DISPLAY), xo_(0), yo_(0)
+	: xo_(0), yo_(0)
 {}
 
 
@@ -44,19 +44,14 @@ int MathInset::height() const
 
 MathStyles MathInset::size() const
 {
-	return size_;
-}
-
-
-void MathInset::size(MathStyles s) const
-{
-	size_ = s;
+	return size_.size;
 }
 
 
 std::ostream & operator<<(std::ostream & os, MathInset const & inset)
 {
-	inset.write(os, false);
+	MathWriteInfo wi(0, os, false);
+	inset.write(wi);
 	return os;
 }
 
@@ -216,7 +211,8 @@ void MathInset::userSetSize(MathStyles sz)
 void MathInset::writeNormal(std::ostream & os) const
 {
 	os << "[unknown ";
-	write(os, false);
+	MathWriteInfo wi(0, os, false);
+	write(wi);
 	os << "] ";
 }
 
@@ -224,7 +220,8 @@ void MathInset::writeNormal(std::ostream & os) const
 void MathInset::dump() const
 {
 	lyxerr << "---------------------------------------------\n";
-	write(lyxerr, false);
+	MathWriteInfo wi(0, lyxerr, false);
+	write(wi);
 	lyxerr << "\n---------------------------------------------\n";
 }
 
@@ -267,7 +264,7 @@ std::vector<MathInset::idx_type>
 }
 
 
-void MathInset::metrics(MathStyles st) const
+void MathInset::metrics(MathMetricsInfo const & st) const
 {
 	lyxerr << "MathInset::metrics() called directly!\n";
 	size_ = st;
@@ -280,7 +277,7 @@ void MathInset::draw(Painter &, int, int) const
 }
 
 
-void MathInset::write(std::ostream &, bool) const
+void MathInset::write(MathWriteInfo &) const
 {
 	lyxerr << "MathInset::write() called directly!\n";
 }
diff --git a/src/mathed/math_inset.h b/src/mathed/math_inset.h
index 9894c9ee73..323deadb75 100644
--- a/src/mathed/math_inset.h
+++ b/src/mathed/math_inset.h
@@ -37,16 +37,75 @@
 */
 
 
-class LaTeXFeatures;
 class MathArrayInset;
+class MathBoxInset;
 class MathCharInset;
 class MathGridInset;
 class MathNestInset;
-class MathScriptInset;
 class MathMatrixInset;
+class MathScriptInset;
 class MathSpaceInset;
 class MathMacroTemplate;
 
+class LaTeXFeatures;
+class Buffer;
+class BufferView;
+class LyXFont;
+
+
+struct MathMetricsInfo {
+	///
+	MathMetricsInfo()
+		: view(0), font(0), size(LM_ST_TEXT)
+	{}
+	///
+	MathMetricsInfo(BufferView * v, LyXFont const * f, MathStyles s)
+		: view(v), font(f), size(s)
+	{}
+
+	///
+	BufferView * view;
+	///
+	LyXFont const * font;
+	///
+	MathStyles size;
+};
+
+
+struct MathWriteInfo {
+	///
+	MathWriteInfo(Buffer const * buffer_, std::ostream & os_, bool fragile_)
+		: buffer(buffer_), os(os_), fragile(fragile_)
+	{}
+	///
+	explicit MathWriteInfo(std::ostream & os_)
+		: buffer(0), os(os_), fragile(false)
+	{}
+
+	///
+	template <class T>
+	MathWriteInfo & operator<<(T const & T)
+	{
+		os << T;
+		return *this;
+	}
+	///
+	MathWriteInfo & operator<<(MathArray const & ar)
+	{
+		ar.write(*this);
+		return *this;
+	}
+
+
+	///
+	Buffer const * buffer;
+	///
+	std::ostream & os;
+	///
+	bool fragile;
+};
+
+
 class MathInset {
 public: 
 	/// short of anything else reasonable
@@ -68,7 +127,7 @@ public:
 	/// draw the object, sets xo_ and yo_ cached values 
 	virtual void draw(Painter &, int x, int y) const;
 	/// write LaTeX and Lyx code
-	virtual void write(std::ostream &, bool fragile) const;
+	virtual void write(MathWriteInfo & os) const;
 	/// write normalized content
 	virtual void writeNormal(std::ostream &) const;
 	/// reproduce itself
@@ -76,7 +135,7 @@ public:
 	///substitutes macro arguments if necessary
 	virtual void substitute(MathMacro const & macro);
 	/// compute the size of the object, sets ascend_, descend_ and width_
-	virtual void metrics(MathStyles st) const;
+	virtual void metrics(MathMetricsInfo const & st) const;
 	/// 
 	virtual int ascent() const { return 1; }
 	///
@@ -191,6 +250,8 @@ public:
 	virtual MathGridInset * asGridInset() { return 0; }
 	/// identifies ArrayInsets
 	virtual MathArrayInset * asArrayInset() { return 0; }
+	/// identifies BoxInsets
+	virtual MathBoxInset * asBoxInset() { return 0; }
 	/// identifies macro templates
 	virtual MathMacroTemplate * asMacroTemplate() { return 0; }
 
@@ -226,10 +287,8 @@ public:
 	static int workwidth;
 
 protected:
-	/// _sets_ style
-	void size(MathStyles s) const;
 	/// the used font size
-	mutable MathStyles size_;
+	mutable MathMetricsInfo size_;
 
 private:
 	/// the following are used for positioning the cursor with the mouse
diff --git a/src/mathed/math_kerninset.C b/src/mathed/math_kerninset.C
index 37e24e93a5..6a28235177 100644
--- a/src/mathed/math_kerninset.C
+++ b/src/mathed/math_kerninset.C
@@ -31,7 +31,7 @@ void MathKernInset::draw(Painter &, int, int) const
 {}
 
 
-void MathKernInset::write(std::ostream & os, bool) const
+void MathKernInset::write(MathWriteInfo & os) const
 {
 	os << "\\kern" << wid_.asLatexString() << " ";
 }
@@ -43,12 +43,14 @@ void MathKernInset::writeNormal(std::ostream & os) const
 }
 
 
-void MathKernInset::metrics(MathStyles) const
+void MathKernInset::metrics(MathMetricsInfo const &) const
 {
 	ascent_  = 0;
 	descent_ = 0;
 #ifdef WITH_WARNINGS
 #warning fix this once the interface to LyXLength has improved
 #endif
+	// this uses the numerical valu in pixels, even if the unit is cm or ex!
 	width_   = static_cast<int>(wid_.value());
+	//cerr << "handling kern of width " << wid_.value() << "\n";
 }
diff --git a/src/mathed/math_kerninset.h b/src/mathed/math_kerninset.h
index 978dd10409..0a707cae7f 100644
--- a/src/mathed/math_kerninset.h
+++ b/src/mathed/math_kerninset.h
@@ -25,11 +25,11 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 private:
 	/// width in em
 	LyXLength wid_;
diff --git a/src/mathed/math_lefteqninset.C b/src/mathed/math_lefteqninset.C
index 162c2ab88d..9c22c442a4 100644
--- a/src/mathed/math_lefteqninset.C
+++ b/src/mathed/math_lefteqninset.C
@@ -30,23 +30,22 @@ void MathLefteqnInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathLefteqnInset::write(std::ostream & os, bool fragile) const
+void MathLefteqnInset::write(MathWriteInfo & os) const
 {
-	os << "\\lefteqn{";
-	cell(0).write(os, fragile);
-	os << "}";
+	os << "\\lefteqn{" << cell(0) << "}";
 }
 
 
 void MathLefteqnInset::writeNormal(std::ostream & os) const
 {
 	os << "[lefteqn ";
-	cell(0).write(os, false);
+	MathWriteInfo wi(os);
+	cell(0).write(wi);
 	os << "] ";
 }
 
 
-void MathLefteqnInset::metrics(MathStyles st) const
+void MathLefteqnInset::metrics(MathMetricsInfo const & st) const
 {
 	MathNestInset::metrics(st);
 	size_    = st;
diff --git a/src/mathed/math_lefteqninset.h b/src/mathed/math_lefteqninset.h
index de99a1273a..15c37262a9 100644
--- a/src/mathed/math_lefteqninset.h
+++ b/src/mathed/math_lefteqninset.h
@@ -8,7 +8,7 @@
 #pragma interface
 #endif
 
-/// The \kern primitive
+/// Support for LaTeX's \\lefteqn command
 
 class MathLefteqnInset : public MathNestInset {
 public:
@@ -19,10 +19,10 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 };
 #endif
diff --git a/src/mathed/math_macro.C b/src/mathed/math_macro.C
index afd872b9a7..7e17da748c 100644
--- a/src/mathed/math_macro.C
+++ b/src/mathed/math_macro.C
@@ -69,11 +69,11 @@ bool MathMacro::editing() const
 }
 
 
-void MathMacro::metrics(MathStyles st) const
+void MathMacro::metrics(MathMetricsInfo const & st) const
 {
 	if (defining()) {
 		size_ = st;
-		mathed_string_dim(LM_TC_TEX, size_, name(), ascent_, descent_, width_);
+		mathed_string_dim(LM_TC_TEX, size_.size, name(), ascent_, descent_, width_);
 		return;
 	}
 
@@ -85,12 +85,12 @@ void MathMacro::metrics(MathStyles st) const
 		ascent_  = expanded_.ascent()  + 2;
 		descent_ = expanded_.descent() + 2;
 
-		width_ +=  mathed_string_width(LM_TC_TEXTRM, size_, name()) + 10;
+		width_ +=  mathed_string_width(LM_TC_TEXTRM, size_.size, name()) + 10;
 
 		int lasc;
 		int ldes;
 		int lwid;
-		mathed_string_dim(LM_TC_TEXTRM, size_, "#1: ", lasc, ldes, lwid);
+		mathed_string_dim(LM_TC_TEXTRM, size_.size, "#1: ", lasc, ldes, lwid);
 
 		for (idx_type i = 0; i < nargs(); ++i) {
 			MathXArray const & c = xcell(i);
@@ -117,25 +117,25 @@ void MathMacro::draw(Painter & pain, int x, int y) const
 	xo(x);
 	yo(y);
 
-	metrics(size());
+	metrics(size_);
 
 	if (defining()) {
-		drawStr(pain, LM_TC_TEX, size_, x, y, name());
+		drawStr(pain, LM_TC_TEX, size_.size, x, y, name());
 		return;
 	}
 
 	if (editing()) {
 		int h = y - ascent() + 2 + expanded_.ascent();
-		drawStr(pain, LM_TC_TEXTRM, size(), x + 3, h, name());
+		drawStr(pain, LM_TC_TEXTRM, size_.size, x + 3, h, name());
 
-		int const w = mathed_string_width(LM_TC_TEXTRM, size(), name());
+		int const w = mathed_string_width(LM_TC_TEXTRM, size_.size, name());
 		expanded_.draw(pain, x + w + 12, h);
 		h += expanded_.descent();
 
 		int lasc;
 		int ldes;
 		int lwid;
-		mathed_string_dim(LM_TC_TEXTRM, size_, "#1: ", lasc, ldes, lwid);
+		mathed_string_dim(LM_TC_TEXTRM, size_.size, "#1: ", lasc, ldes, lwid);
 
 		for (idx_type i = 0; i < nargs(); ++i) {
 			MathXArray const & c = xcell(i);
@@ -143,7 +143,7 @@ void MathMacro::draw(Painter & pain, int x, int y) const
 			c.draw(pain, x + lwid, h);
 			char str[] = "#1:";
 			str[1] += static_cast<char>(i);
-			drawStr(pain, LM_TC_TEX, size(), x + 3, h, str);
+			drawStr(pain, LM_TC_TEX, size_.size, x + 3, h, str);
 			h += std::max(c.descent(), ldes) + 5;
 		}
 		return;
@@ -158,18 +158,18 @@ void MathMacro::dump() const
 	MathMacroTable::dump();
 	lyxerr << "\n macro: '" << this << "'\n";
 	lyxerr << " name: '" << name() << "'\n";
-	lyxerr << " template: '"; tmplate_->write(lyxerr, false); lyxerr << "'\n";
+	lyxerr << " template: '";
+	MathWriteInfo wi(lyxerr);
+	tmplate_->write(wi);
+	lyxerr << "'\n";
 }
 
 
-void MathMacro::write(std::ostream & os, bool fragile) const
+void MathMacro::write(MathWriteInfo & os) const
 {
 	os << '\\' << name();
-	for (idx_type i = 0; i < nargs(); ++i) {
-		os << '{';
-		cell(i).write(os, fragile);
-		os << '}';
-	}
+	for (idx_type i = 0; i < nargs(); ++i)
+		os << '{' << cell(i) << '}';
 	if (nargs() == 0) 
 		os << ' ';
 }
diff --git a/src/mathed/math_macro.h b/src/mathed/math_macro.h
index 05362ee2a0..4460f0bfd5 100644
--- a/src/mathed/math_macro.h
+++ b/src/mathed/math_macro.h
@@ -44,11 +44,11 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
diff --git a/src/mathed/math_macroarg.C b/src/mathed/math_macroarg.C
index d7a777954d..ab1b217957 100644
--- a/src/mathed/math_macroarg.C
+++ b/src/mathed/math_macroarg.C
@@ -29,13 +29,13 @@ MathInset * MathMacroArgument::clone() const
 }
 
 
-void MathMacroArgument::write(std::ostream & os, bool /*fragile*/) const
+void MathMacroArgument::write(MathWriteInfo & os) const
 {
 	os << '#' << number_;
 }
 
 
-void MathMacroArgument::metrics(MathStyles st) const
+void MathMacroArgument::metrics(MathMetricsInfo const & st) const
 {
 	if (expanded_) {
 		xcell(0).metrics(st);
@@ -43,7 +43,7 @@ void MathMacroArgument::metrics(MathStyles st) const
 		ascent_  = xcell(0).ascent();
 		descent_ = xcell(0).descent();
 	} else
-		mathed_string_dim(LM_TC_TEX, size(), str_, ascent_, descent_, width_);
+		mathed_string_dim(LM_TC_TEX, size_.size, str_, ascent_, descent_, width_);
 }
 
 
@@ -52,7 +52,7 @@ void MathMacroArgument::draw(Painter & pain, int x, int y) const
 	if (expanded_)
 		xcell(0).draw(pain, x, y);
 	else
-		drawStr(pain, LM_TC_TEX, size(), x, y, str_);
+		drawStr(pain, LM_TC_TEX, size_.size, x, y, str_);
 }
 
 
diff --git a/src/mathed/math_macroarg.h b/src/mathed/math_macroarg.h
index 0982ada0d1..c8855d9a87 100644
--- a/src/mathed/math_macroarg.h
+++ b/src/mathed/math_macroarg.h
@@ -18,11 +18,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
diff --git a/src/mathed/math_macrotemplate.C b/src/mathed/math_macrotemplate.C
index 822d0e9211..c217cd1b57 100644
--- a/src/mathed/math_macrotemplate.C
+++ b/src/mathed/math_macrotemplate.C
@@ -47,20 +47,16 @@ string const & MathMacroTemplate::name() const
 }
 
 
-void MathMacroTemplate::write(std::ostream & os, bool fragile) const
+void MathMacroTemplate::write(MathWriteInfo & os) const
 {
-	os << "\n\\newcommand{\\" << name_ << "}";
-
+	os << "\n\\newcommand{\\" << name_ << '}';
 	if (numargs_ > 0)
-		os << "[" << numargs_ << "]";
-
-	os << "{";
-	cell(0).write(os, fragile);
-	os << "}\n";
+		os << '[' << numargs_ << ']';
+	os << '{' << cell(0) << "}\n";
 }
 
 
-void MathMacroTemplate::metrics(MathStyles st) const
+void MathMacroTemplate::metrics(MathMetricsInfo const & st) const
 {
 	xcell(0).metrics(st);
 	size_    = st;
diff --git a/src/mathed/math_macrotemplate.h b/src/mathed/math_macrotemplate.h
index aeefe5a2ce..4cbe5106ee 100644
--- a/src/mathed/math_macrotemplate.h
+++ b/src/mathed/math_macrotemplate.h
@@ -25,7 +25,7 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	/// Number of arguments
 	int numargs() const;
 	///
@@ -35,7 +35,7 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	/// identifies macro templates
 	MathMacroTemplate * asMacroTemplate() { return this; }
 private:
diff --git a/src/mathed/math_matrixinset.C b/src/mathed/math_matrixinset.C
index 5e61d8671e..690dc0acad 100644
--- a/src/mathed/math_matrixinset.C
+++ b/src/mathed/math_matrixinset.C
@@ -140,9 +140,10 @@ int MathMatrixInset::defaultColSpace(col_type col)
 }
 
 
-void MathMatrixInset::metrics(MathStyles) const
+void MathMatrixInset::metrics(MathMetricsInfo const & st) const
 {
-	size_ = (getType() == LM_OT_SIMPLE) ? LM_ST_TEXT : LM_ST_DISPLAY;
+	size_ = st;
+	size_.size = (getType() == LM_OT_SIMPLE) ? LM_ST_TEXT : LM_ST_DISPLAY;
 
 	// let the cells adjust themselves
 	MathGridInset::metrics(size_);
@@ -187,17 +188,15 @@ void MathMatrixInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathMatrixInset::write(std::ostream & os, bool fragile) const
+void MathMatrixInset::write(MathWriteInfo & os) const
 {
-  header_write(os);
+  header_write(os.os);
 
 	bool n = numberedType();
 
 	for (row_type row = 0; row < nrows(); ++row) {
-		for (col_type col = 0; col < ncols(); ++col) {
-			cell(index(row, col)).write(os, fragile);
-			os << eocString(col);
-		}
+		for (col_type col = 0; col < ncols(); ++col) 
+			os << cell(index(row, col)) << eocString(col);
 		if (n) {
 			if (!label_[row].empty())
 				os << "\\label{" << label_[row] << "}";
@@ -207,7 +206,7 @@ void MathMatrixInset::write(std::ostream & os, bool fragile) const
 		os << eolString(row);
 	}
 
-  footer_write(os);
+  footer_write(os.os);
 }
 
 
diff --git a/src/mathed/math_matrixinset.h b/src/mathed/math_matrixinset.h
index 32c5fa43e8..c28020b549 100644
--- a/src/mathed/math_matrixinset.h
+++ b/src/mathed/math_matrixinset.h
@@ -27,11 +27,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
diff --git a/src/mathed/math_nestinset.C b/src/mathed/math_nestinset.C
index 5dccb4b559..9b8a411002 100644
--- a/src/mathed/math_nestinset.C
+++ b/src/mathed/math_nestinset.C
@@ -48,7 +48,7 @@ void MathNestInset::substitute(MathMacro const & m)
 }
 
 
-void MathNestInset::metrics(MathStyles st) const
+void MathNestInset::metrics(MathMetricsInfo const & st) const
 {
 	size_ = st;
 	for (idx_type i = 0; i < nargs(); ++i)
@@ -139,12 +139,13 @@ bool MathNestInset::idxEnd(idx_type & idx, pos_type & pos) const
 
 void MathNestInset::dump() const
 {
-	lyxerr << "---------------------------------------------\n";
-	write(lyxerr, false);
-	lyxerr << "\n";
+	MathWriteInfo os(lyxerr);
+	os << "---------------------------------------------\n";
+	write(os);
+	os << "\n";
 	for (idx_type i = 0; i < nargs(); ++i)
-		lyxerr << cell(i) << "\n";
-	lyxerr << "---------------------------------------------\n";
+		os << cell(i) << "\n";
+	os << "---------------------------------------------\n";
 }
 
 
diff --git a/src/mathed/math_nestinset.h b/src/mathed/math_nestinset.h
index 5cf17786de..8bf33e0038 100644
--- a/src/mathed/math_nestinset.h
+++ b/src/mathed/math_nestinset.h
@@ -19,7 +19,7 @@ public:
 	explicit MathNestInset(idx_type ncells);
 
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	/// draw the object, sets xo_ and yo_ cached values 
 	void draw(Painter &, int x, int y) const;
 	/// appends itself with macro arguments substituted
diff --git a/src/mathed/math_notinset.C b/src/mathed/math_notinset.C
index a187a3173f..9ebbb3f1bf 100644
--- a/src/mathed/math_notinset.C
+++ b/src/mathed/math_notinset.C
@@ -16,7 +16,7 @@ MathInset * MathNotInset::clone() const
 }
 
 
-void MathNotInset::write(ostream & os, bool /* fragile */) const
+void MathNotInset::write(MathWriteInfo & os) const
 {
 	os << "\\not ";
 }
@@ -28,15 +28,13 @@ void MathNotInset::writeNormal(ostream & os) const
 }
 
 
-void MathNotInset::metrics(MathStyles st) const
+void MathNotInset::metrics(MathMetricsInfo const & st) const
 {
-	size(st);
+	size_ = st;
 	if (math_font_available(LM_TC_CMSY))
-		mathed_char_dim(LM_TC_CMSY, size_, 54,
-				ascent_, descent_, width_);
-		else
-			mathed_char_dim(LM_TC_VAR, size_, '/',
-					ascent_, descent_, width_);
+		mathed_char_dim(LM_TC_CMSY, size(), 54, ascent_, descent_, width_);
+	else
+		mathed_char_dim(LM_TC_VAR, size(), '/', ascent_, descent_, width_);
 	width_ = 0;
 }
 
@@ -47,7 +45,7 @@ void MathNotInset::draw(Painter & pain, int x, int y) const
 	yo(y);
 
 	if (math_font_available(LM_TC_CMSY))
-		drawChar(pain, LM_TC_CMSY, size_, x, y, 54);
+		drawChar(pain, LM_TC_CMSY, size(), x, y, 54);
 	else
-		drawChar(pain, LM_TC_VAR, size_, x, y, '/');
+		drawChar(pain, LM_TC_VAR, size(), x, y, '/');
 }
diff --git a/src/mathed/math_notinset.h b/src/mathed/math_notinset.h
index b97d565ffc..cc0dca081b 100644
--- a/src/mathed/math_notinset.h
+++ b/src/mathed/math_notinset.h
@@ -13,11 +13,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 };
diff --git a/src/mathed/math_parser.C b/src/mathed/math_parser.C
index 66d455e4b9..ba70645930 100644
--- a/src/mathed/math_parser.C
+++ b/src/mathed/math_parser.C
@@ -889,6 +889,17 @@ void Parser::parse_into(MathArray & array, unsigned flags, MathTextCodes code)
 			}
 			array.push_back(MathAtom(p));
 		}
+
+/*
+		// Disabled
+		else if (t.cs() == "mbox") {
+			array.push_back(createMathInset(t.cs()));
+			// slurp in the argument of mbox
+	
+			MathBoxInset * p = array.back()->asBoxInset();
+			//lyx::assert(p);
+		}
+*/
 	
 		else if (t.cs().size()) {
 			latexkeys const * l = in_word_set(t.cs());
diff --git a/src/mathed/math_parser.h b/src/mathed/math_parser.h
index 7acfa475d9..e49a4f7ce6 100644
--- a/src/mathed/math_parser.h
+++ b/src/mathed/math_parser.h
@@ -38,6 +38,8 @@ enum MathTokenEnum
 	///
 	LM_TK_SYM = 256,
 	///
+	LM_TK_BOX,
+	///
 	LM_TK_CHOOSE,
 	///
 	LM_TK_BINOM,
diff --git a/src/mathed/math_rootinset.C b/src/mathed/math_rootinset.C
index 4760854461..c9bd8e6188 100644
--- a/src/mathed/math_rootinset.C
+++ b/src/mathed/math_rootinset.C
@@ -30,7 +30,7 @@ MathInset * MathRootInset::clone() const
 }
 
 
-void MathRootInset::metrics(MathStyles st) const
+void MathRootInset::metrics(MathMetricsInfo const & st) const
 {
 	MathNestInset::metrics(st);
 	size_    = st;
@@ -60,13 +60,9 @@ void MathRootInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathRootInset::write(std::ostream & os, bool fragile) const
+void MathRootInset::write(MathWriteInfo & os) const
 {
-	os << "\\sqrt[";
-	cell(0).write(os, fragile);  
-	os << "]{";
-	cell(1).write(os, fragile);
-	os << '}';
+	os << "\\sqrt[" << cell(0) << "]{" << cell(1) << '}';
 }
 
 
diff --git a/src/mathed/math_rootinset.h b/src/mathed/math_rootinset.h
index 5649d0a8f7..95174881c7 100644
--- a/src/mathed/math_rootinset.h
+++ b/src/mathed/math_rootinset.h
@@ -34,11 +34,11 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	bool idxUp(int & idx, int & pos) const;
 	///
diff --git a/src/mathed/math_scriptinset.C b/src/mathed/math_scriptinset.C
index a0ce5ebbc5..cc9c481bdb 100644
--- a/src/mathed/math_scriptinset.C
+++ b/src/mathed/math_scriptinset.C
@@ -180,13 +180,14 @@ int MathScriptInset::ndes(MathInset const * nuc) const
 }
 
 
-void MathScriptInset::metrics(MathStyles st) const
+void MathScriptInset::metrics(MathMetricsInfo const & st) const
 {	
 	metrics(0, st);
 }
 
 
-void MathScriptInset::metrics(MathInset const * nuc, MathStyles st) const
+void MathScriptInset::metrics(MathInset const * nuc,
+	MathMetricsInfo const & st) const
 {	
 	MathNestInset::metrics(st);
 	if (nuc)
@@ -221,18 +222,17 @@ void MathScriptInset::draw(MathInset const * nuc, Painter & pain,
 }
 
 
-void MathScriptInset::write(std::ostream & os, bool fragile) const
+void MathScriptInset::write(MathWriteInfo & os) const
 {  
 	//lyxerr << "unexpected call to MathScriptInset::write()\n";
-	write(0, os, fragile);
+	write(0, os);
 }
 
 
-void MathScriptInset::write(MathInset const * nuc, std::ostream & os,
-	bool fragile) const
+void MathScriptInset::write(MathInset const * nuc, MathWriteInfo & os) const
 {
 	if (nuc) {
-		nuc->write(os, fragile);
+		nuc->write(os);
 		if (nuc->takesLimits()) {
 			if (limits_ == -1)
 				os << "\\nolimits ";
@@ -243,17 +243,11 @@ void MathScriptInset::write(MathInset const * nuc, std::ostream & os,
 	else
 		os << "{}";
 
-	if (hasDown() && down().data_.size()) {
-		os << "_{";
-		down().data_.write(os, fragile);
-		os << "}";
-	}
+	if (hasDown() && down().data_.size())
+		os << "_{" << down().data_ << '}';
 
-	if (hasUp() && up().data_.size()) {
-		os << "^{";
-		up().data_.write(os, fragile);
-		os << "}";
-	}
+	if (hasUp() && up().data_.size())
+		os << "^{" << up().data_ << '}';
 }
 
 
diff --git a/src/mathed/math_scriptinset.h b/src/mathed/math_scriptinset.h
index 59e0535a68..49337fa80a 100644
--- a/src/mathed/math_scriptinset.h
+++ b/src/mathed/math_scriptinset.h
@@ -21,16 +21,16 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 
 	///
-	void write(MathInset const * nucleus, std::ostream &, bool fragile) const;
+	void write(MathInset const *, MathWriteInfo & os) const;
 	///
-	void metrics(MathInset const * nucleus, MathStyles st) const;
+	void metrics(MathInset const * nucleus, MathMetricsInfo const & st) const;
 	///
 	void draw(MathInset const * nucleus, Painter &, int x, int y) const;
 	///
diff --git a/src/mathed/math_sizeinset.C b/src/mathed/math_sizeinset.C
index 8587e57047..389b233597 100644
--- a/src/mathed/math_sizeinset.C
+++ b/src/mathed/math_sizeinset.C
@@ -26,20 +26,20 @@ void MathSizeInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathSizeInset::metrics(MathStyles /* st */) const
+void MathSizeInset::metrics(MathMetricsInfo const & st) const
 {
-	xcell(0).metrics(MathStyles(key_->id));
+	size_ = st;
+	size_.size = MathStyles(key_->id);
+	xcell(0).metrics(size_);
 	ascent_   = xcell(0).ascent_;
 	descent_  = xcell(0).descent_;
 	width_    = xcell(0).width_;
 }
 
 
-void MathSizeInset::write(std::ostream & os, bool fragile) const
+void MathSizeInset::write(MathWriteInfo & os) const
 {
-	os << "{\\" << key_->name << " ";
-	cell(0).write(os, fragile);
-	os << "}";
+	os << "{\\" << key_->name << ' ' << cell(0) << '}';
 }
 
 
diff --git a/src/mathed/math_sizeinset.h b/src/mathed/math_sizeinset.h
index c72ce5e64e..b4e25958c7 100644
--- a/src/mathed/math_sizeinset.h
+++ b/src/mathed/math_sizeinset.h
@@ -22,11 +22,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 
diff --git a/src/mathed/math_spaceinset.C b/src/mathed/math_spaceinset.C
index 46408f177e..87b752e884 100644
--- a/src/mathed/math_spaceinset.C
+++ b/src/mathed/math_spaceinset.C
@@ -40,7 +40,7 @@ void MathSpaceInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathSpaceInset::write(std::ostream & os, bool /* fragile */) const
+void MathSpaceInset::write(MathWriteInfo & os) const
 {
 	if (space_ >= 0 && space_ < 6)
 		os << '\\' << latex_mathspace[space_] << ' ';
@@ -53,7 +53,7 @@ void MathSpaceInset::writeNormal(std::ostream & os) const
 }
 
 
-void MathSpaceInset::metrics(MathStyles st) const
+void MathSpaceInset::metrics(MathMetricsInfo const & st) const
 {
 	size_  = st;
 	width_ = space_ ? space_ * 2 : 2;
diff --git a/src/mathed/math_spaceinset.h b/src/mathed/math_spaceinset.h
index 96b43441f9..fddaed6130 100644
--- a/src/mathed/math_spaceinset.h
+++ b/src/mathed/math_spaceinset.h
@@ -19,11 +19,11 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	MathSpaceInset const * asSpaceInset() const { return this; }
 	///
diff --git a/src/mathed/math_specialcharinset.C b/src/mathed/math_specialcharinset.C
index 4fe90e80fc..05c34659b7 100644
--- a/src/mathed/math_specialcharinset.C
+++ b/src/mathed/math_specialcharinset.C
@@ -36,7 +36,7 @@ int MathSpecialCharInset::width() const
 }
 
 
-void MathSpecialCharInset::metrics(MathStyles st) const
+void MathSpecialCharInset::metrics(MathMetricsInfo const & st) const
 {
 	size_ = st;
 }
@@ -46,11 +46,11 @@ void MathSpecialCharInset::draw(Painter & pain, int x, int y) const
 { 
 	xo(x);
 	yo(y);
-	drawChar(pain, LM_TC_CONST, size_, x, y, char_);
+	drawChar(pain, LM_TC_CONST, size(), x, y, char_);
 }
 
 
-void MathSpecialCharInset::write(std::ostream & os, bool) const
+void MathSpecialCharInset::write(MathWriteInfo & os) const
 {
 	os << "\\" << char_;
 }
diff --git a/src/mathed/math_specialcharinset.h b/src/mathed/math_specialcharinset.h
index 6582868f6d..8fcfbb32c9 100644
--- a/src/mathed/math_specialcharinset.h
+++ b/src/mathed/math_specialcharinset.h
@@ -20,11 +20,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	/// 
diff --git a/src/mathed/math_splitinset.C b/src/mathed/math_splitinset.C
index e7b5c18f18..46eab1d065 100644
--- a/src/mathed/math_splitinset.C
+++ b/src/mathed/math_splitinset.C
@@ -19,13 +19,13 @@ MathInset * MathSplitInset::clone() const
 }
 
 
-void MathSplitInset::write(std::ostream & os, bool fragile) const
+void MathSplitInset::write(MathWriteInfo & os) const
 {
-	if (fragile)
+	if (os.fragile)
 		os << "\\protect";
 	os << "\\begin{split}";
-	MathGridInset::write(os, fragile);
-	if (fragile)
+	MathGridInset::write(os);
+	if (os.fragile)
 		os << "\\protect";
 	os << "\\end{split}\n";
 }
diff --git a/src/mathed/math_splitinset.h b/src/mathed/math_splitinset.h
index 2ef9348db9..7c188eca93 100644
--- a/src/mathed/math_splitinset.h
+++ b/src/mathed/math_splitinset.h
@@ -16,7 +16,7 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	int defaultColSpace(int) { return 0; }
 	///
diff --git a/src/mathed/math_sqrtinset.C b/src/mathed/math_sqrtinset.C
index 956fbb28b9..27cdc56c2c 100644
--- a/src/mathed/math_sqrtinset.C
+++ b/src/mathed/math_sqrtinset.C
@@ -19,7 +19,7 @@ MathInset * MathSqrtInset::clone() const
 }
 
 
-void MathSqrtInset::metrics(MathStyles st) const
+void MathSqrtInset::metrics(MathMetricsInfo const & st) const
 {
 	xcell(0).metrics(st);
 	size_    = st;
@@ -46,11 +46,9 @@ void MathSqrtInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathSqrtInset::write(std::ostream & os, bool fragile) const
+void MathSqrtInset::write(MathWriteInfo & os) const
 {
-	os << "\\sqrt{";
-	cell(0).write(os, fragile); 
-	os << '}';
+	os << "\\sqrt{" << cell(0) << '}';
 }
 
 
diff --git a/src/mathed/math_sqrtinset.h b/src/mathed/math_sqrtinset.h
index cf7c5d89c2..78e3ecedce 100644
--- a/src/mathed/math_sqrtinset.h
+++ b/src/mathed/math_sqrtinset.h
@@ -20,10 +20,10 @@ public:
 	///
 	void draw(Painter &, int x, int y) const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 };
 #endif
diff --git a/src/mathed/math_stackrelinset.C b/src/mathed/math_stackrelinset.C
index 081c3b4c6d..162a8bdf64 100644
--- a/src/mathed/math_stackrelinset.C
+++ b/src/mathed/math_stackrelinset.C
@@ -17,9 +17,10 @@ MathInset * MathStackrelInset::clone() const
 }
 
 
-void MathStackrelInset::metrics(MathStyles st) const
+void MathStackrelInset::metrics(MathMetricsInfo const & st) const
 {
-	size_    = smallerStyleFrac(st);
+	size_    = st;
+	size_.size = smallerStyleFrac(size_.size);
 	xcell(0).metrics(size_);
 	xcell(1).metrics(st);
 	width_   = std::max(xcell(0).width(), xcell(1).width()) + 4; 
@@ -38,13 +39,9 @@ void MathStackrelInset::draw(Painter & pain, int x, int y) const
 }
 
 
-void MathStackrelInset::write(std::ostream & os, bool fragile) const
+void MathStackrelInset::write(MathWriteInfo & os) const
 {
-	os << "\\stackrel{";
-	cell(0).write(os, fragile);
-	os << "}{";
-	cell(1).write(os, fragile);
-	os << '}';
+	os << "\\stackrel{" << cell(0) << "}{" << cell(1) << '}';
 }
 
 
diff --git a/src/mathed/math_stackrelinset.h b/src/mathed/math_stackrelinset.h
index 3de330a50f..5c66bdcb79 100644
--- a/src/mathed/math_stackrelinset.h
+++ b/src/mathed/math_stackrelinset.h
@@ -18,11 +18,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 };
diff --git a/src/mathed/math_symbolinset.C b/src/mathed/math_symbolinset.C
index 10520453ec..dd7915780d 100644
--- a/src/mathed/math_symbolinset.C
+++ b/src/mathed/math_symbolinset.C
@@ -16,7 +16,7 @@ MathInset * MathSymbolInset::clone() const
 }
 
 
-void MathSymbolInset::write(ostream & os, bool /* fragile */) const
+void MathSymbolInset::write(MathWriteInfo & os) const
 {
 	os << '\\' << sym_->name << ' ';
 }
@@ -58,25 +58,25 @@ MathTextCodes MathSymbolInset::code2() const
 }
 
 
-void MathSymbolInset::metrics(MathStyles st) const
+void MathSymbolInset::metrics(MathMetricsInfo const & st) const
 {
 	size_ = st;
 	MathTextCodes Code = code();
 	if (sym_->latex_font_id > 0 && math_font_available(Code)) {
-		mathed_char_dim(Code, size_, sym_->latex_font_id,
+		mathed_char_dim(Code, size(), sym_->latex_font_id,
 				ascent_, descent_, width_);
 		if (Code == LM_TC_CMEX) {
 			h_ = 4*descent_/5;
 			ascent_  += h_;
 			descent_ -= h_;
 		}
-	} else if (sym_->id > 0 && sym_->id < 255 &&
-		   math_font_available(LM_TC_SYMB)) {
-		mathed_char_dim(code2(), size_, sym_->id,
-				ascent_, descent_, width_);
-	} else {
-		mathed_string_dim(LM_TC_TEX, size_, sym_->name, ascent_, descent_, width_);
+		return;
 	}
+
+	if (sym_->id > 0 && sym_->id < 255 && math_font_available(LM_TC_SYMB))
+		mathed_char_dim(code2(), size(), sym_->id, ascent_, descent_, width_);
+	else
+		mathed_string_dim(LM_TC_TEX, size(), sym_->name, ascent_, descent_, width_);
 }
 
 
@@ -86,12 +86,11 @@ void MathSymbolInset::draw(Painter & pain, int x, int y) const
 	yo(y);
 	MathTextCodes Code = code();
 	if (sym_->latex_font_id > 0 && math_font_available(Code))
-		drawChar(pain, Code, size_, x, y - h_, sym_->latex_font_id);
-	else if (sym_->id > 0 && sym_->id < 255 &&
-		 math_font_available(LM_TC_SYMB))
-		drawChar(pain, code2(), size_, x, y, sym_->id);
+		drawChar(pain, Code, size(), x, y - h_, sym_->latex_font_id);
+	else if (sym_->id > 0 && sym_->id < 255 && math_font_available(LM_TC_SYMB))
+		drawChar(pain, code2(), size(), x, y, sym_->id);
 	else
-		drawStr(pain, LM_TC_TEX, size_, x, y, sym_->name);
+		drawStr(pain, LM_TC_TEX, size(), x, y, sym_->name);
 }
 
 
@@ -103,7 +102,7 @@ bool MathSymbolInset::isRelOp() const
 
 bool MathSymbolInset::isScriptable() const
 {
-	return size_ == LM_ST_DISPLAY && sym_->token == LM_TK_CMEX;
+	return size() == LM_ST_DISPLAY && sym_->token == LM_TK_CMEX;
 }
 
 
diff --git a/src/mathed/math_symbolinset.h b/src/mathed/math_symbolinset.h
index fa2b5bbf4b..a42f01ba59 100644
--- a/src/mathed/math_symbolinset.h
+++ b/src/mathed/math_symbolinset.h
@@ -16,11 +16,11 @@ public:
 	///
 	MathInset * clone() const;
 	///
-	void write(std::ostream &, bool fragile) const;
+	void write(MathWriteInfo & os) const;
 	///
 	void writeNormal(std::ostream &) const;
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter &, int x, int y) const;
 	///
diff --git a/src/mathed/xarray.C b/src/mathed/xarray.C
index 6f3ff8b3ca..ffeee12e3a 100644
--- a/src/mathed/xarray.C
+++ b/src/mathed/xarray.C
@@ -18,15 +18,15 @@ MathXArray::MathXArray()
 {}
 
 
-void MathXArray::metrics(MathStyles st) const
+void MathXArray::metrics(MathMetricsInfo const & st) const
 {
-	style_   = st;
-	mathed_char_dim(LM_TC_VAR, st, 'I', ascent_, descent_, width_);
+	style_ = st.size;
+	mathed_char_dim(LM_TC_VAR, style_, 'I', ascent_, descent_, width_);
 
 	if (data_.empty()) 
 		return;
 
-	math_font_max_dim(LM_TC_TEXTRM, st, ascent_, descent_);	
+	math_font_max_dim(LM_TC_TEXTRM, style_, ascent_, descent_);	
 	width_   = 0;
 
 	//lyxerr << "MathXArray::metrics(): '" << data_ << "'\n";
diff --git a/src/mathed/xarray.h b/src/mathed/xarray.h
index 8627f5e62e..b09d6af344 100644
--- a/src/mathed/xarray.h
+++ b/src/mathed/xarray.h
@@ -24,7 +24,7 @@ public:
 	///
 	MathXArray();
 	///
-	void metrics(MathStyles st) const;
+	void metrics(MathMetricsInfo const & st) const;
 	///
 	void draw(Painter & pain, int x, int y) const;