Let the Foot inset have a different Layout when inside a title

This allows to address two main issues
 * \thanks does only accept one paragraph, while \footnote allows several (ticket #2666)
 * footnotes in titling environments were not numbered on screen.

Moreover, the code reduces hardcoding of features, which is always a good thing.

There are several pieces in this commit:

 * new numbering type \fnsymbol for counters

 * the Foot inset changes its layoutName() to Foot:InTitle when inside a paragraph with InTitle property. This is set when running updateBuffer.

 * Foot:intitle uses the \thanks command, does not allow multiple paragraphs and marks its contents as moving argument.

 * The InsetLayouts for Foot now have properLaTeXName/Type, so that InsetFoot::latex can be removed; further code simplification is probably possible.

Fixes: #2666

lib/layouts/stdcounters.inc

@@ -71,3 +71,8 @@ End
 Counter footnote
 	PrettyFormat         "Footnote ##"
 End
+
+Counter thanks
+	PrettyFormat         "Footnote ##"
+	LabelString	     "\fnsymbol{thanks}"
+End

lib/layouts/stdinsets.inc

@@ -39,6 +39,8 @@ End
 
 InsetLayout Foot
 	LabelString           foot
+	LatexType             Command
+	LatexName             footnote
 	Counter               footnote
 	Font
 	  Size                Small
@@ -76,6 +78,16 @@ InsetLayout Foot
 	EndHTMLStyle
 End
 
+InsetLayout Foot:InTitle
+	CopyStyle             Foot
+	LatexName             thanks
+	NeedProtect           true
+	Counter               thanks
+	MultiPar              false
+	# FIXME: this is probably not correct
+	HTMLLabel             \arabic{thanks}
+End
+
 InsetLayout Note:Comment
 	LabelString           Comment
 	LatexType             environment

src/Counters.cpp

@@ -444,6 +444,24 @@ docstring const lowerromanCounter(int const n)
 	return lowercase(romanCounter(n));
 }
 
+
+docstring const fnsymbolCounter(int const n)
+{
+	switch(n) {
+	case 1: return docstring(1, 0x002a); //*
+	case 2: return docstring(1, 0x2020); // dagger
+	case 3: return docstring(1, 0x2021); // double dagger
+	case 4: return docstring(1, 0x00A7); // section sign
+	case 5: return docstring(1, 0x00B6); // pilcrow sign
+	case 6: return docstring(1, 0x2016); // vertical bar
+	case 7: return docstring(2, 0x002a); // two *
+	case 8: return docstring(2, 0x2020); // two daggers
+	case 9: return docstring(2, 0x2021); // two double daggers
+	default:
+		return from_ascii("?");
+	};
+}
+
 } // namespace anon
 
 
@@ -475,6 +493,9 @@ docstring Counters::labelItem(docstring const & ctr,
 	if (numbertype == "Roman")
 		return romanCounter(val);
 
+	if (numbertype == "fnsymbol")
+		return fnsymbolCounter(val);
+
 	return convert<docstring>(val);
 }
 

src/insets/InsetFoot.cpp

@@ -32,10 +32,16 @@ using namespace std;
 namespace lyx {
 
 InsetFoot::InsetFoot(Buffer * buf)
-	: InsetFootlike(buf)
+	: InsetFootlike(buf), intitle_(false)
 {}
 
 
+docstring InsetFoot::layoutName() const
+{
+	return intitle_ ? from_ascii("Foot:InTitle") : from_ascii("Foot");
+}
+
+
 void InsetFoot::updateBuffer(ParIterator const & it, UpdateType utype)
 {
 	BufferParams const & bp = buffer().masterBuffer()->params();
@@ -44,17 +50,24 @@ void InsetFoot::updateBuffer(ParIterator const & it, UpdateType utype)
 		// the footnote counter is local to this inset
 		cnts.saveLastCounter();
 	}
-	Paragraph const & outer = it.paragraph();
-	if (!outer.layout().intitle) {
+
+	intitle_ = false;
+	for (size_type sl = 0 ; sl < it.depth() ; ++ sl) {
+		if (it[sl].text() && it[sl].paragraph().layout().intitle) {
+			intitle_ = true;
+			break;
+		}
+	}
+
+	Language const * lang = it.paragraph().getParLanguage(bp);
 	InsetLayout const & il = getLayout();
 	docstring const & count = il.counter();
 	custom_label_ = translateIfPossible(il.labelstring());
 	if (cnts.hasCounter(count))
 		cnts.step(count, utype);
-		custom_label_ += ' ' +
-			cnts.theCounter(count, outer.getParLanguage(bp)->code());
+	custom_label_ += ' ' + cnts.theCounter(count, lang->code());
 	setLabel(custom_label_);
-	}
+
 	InsetCollapsable::updateBuffer(it, utype);
 	if (utype == OutputUpdate)
 		cnts.restoreLastCounter();
@@ -84,29 +97,6 @@ docstring InsetFoot::toolTip(BufferView const & bv, int x, int y) const
 }
 
 
-void InsetFoot::latex(otexstream & os, OutputParams const & runparams_in) const
-{
-	OutputParams runparams = runparams_in;
-	// footnotes in titling commands like \title have moving arguments
-	runparams.moving_arg |= runparams_in.intitle;
-
-	os << safebreakln;
-	if (runparams.lastid != -1)
-		os.texrow().start(runparams.lastid, runparams.lastpos);
-
-	// in titling commands, \thanks should be used instead of \footnote.
-	// some classes (e.g. memoir) do not understand \footnote.
-	if (runparams_in.intitle)
-		os << "\\thanks{";
-	else
-		os << "\\footnote{";
-
-	InsetText::latex(os, runparams);
-	os << "%\n}";
-	runparams_in.encoding = runparams.encoding;
-}
-
-
 int InsetFoot::plaintext(odocstringstream & os,
         OutputParams const & runparams, size_t max_length) const
 {

src/insets/InsetFoot.h

@@ -30,9 +30,7 @@ private:
 	///
 	InsetCode lyxCode() const { return FOOT_CODE; }
 	///
-	docstring layoutName() const { return from_ascii("Foot"); }
-	///
-	void latex(otexstream &, OutputParams const &) const;
+	docstring layoutName() const;
 	///
 	int plaintext(odocstringstream & ods, OutputParams const & op,
 	              size_t max_length = INT_MAX) const;
@@ -48,6 +46,8 @@ private:
 	Inset * clone() const { return new InsetFoot(*this); }
 	///
 	docstring custom_label_;
+	///
+	bool intitle_;
 };
 
 

src/insets/InsetFootlike.cpp

@@ -18,12 +18,15 @@
 #include "Font.h"
 #include "MetricsInfo.h"
 
+#include "support/lstrings.h"
+
 #include <iostream>
 
 using namespace std;
 
 namespace lyx {
 
+using support::token;
 
 InsetFootlike::InsetFootlike(Buffer * buf)
 	: InsetCollapsable(buf)
@@ -50,7 +53,8 @@ void InsetFootlike::draw(PainterInfo & pi, int x, int y) const
 
 void InsetFootlike::write(ostream & os) const
 {
-	os << to_utf8(layoutName()) << "\n";
+	// The layoutName may contain a "InTitle" qualifier
+	os << to_utf8(token(layoutName(), char_type(':'), 0)) << "\n";
 	InsetCollapsable::write(os);
 }