Fix bug 409 (Add support for numbered footnotes)

* src/insets/InsetFoot.cpp (updateLabels): number the footnote if
	(1) the footnote counter exists and (2) it is not in a title
	layout

	* lib/layouts/stdcounters.inc: add a footnote counter.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19524 a592a061-630c-0410-9148-cb99ea01b6c8

lib/layouts/stdcounters.inc

@@ -80,3 +80,7 @@ End
 Counter
 	Name                 listing
 End
+
+Counter
+	Name                 footnote
+End

src/insets/InsetFoot.cpp

@@ -10,17 +10,22 @@
  */
 
 #include <config.h>
+#include "debug.h"
 
 #include "InsetFoot.h"
 
 #include "Buffer.h"
+#include "BufferParams.h"
+#include "Counters.h"
 #include "gettext.h"
 // the following is needed just to get the layout of the enclosing
 // paragraph. This seems a bit too much to me (JMarc)
 #include "OutputParams.h"
+#include "ParIterator.h"
 
+#include "support/convert.h"
 #include "support/std_ostream.h"
-
+#include "support/lstrings.h"
 
 namespace lyx {
 
@@ -53,6 +58,23 @@ docstring const InsetFoot::editMessage() const
 }
 
 
+void InsetFoot::updateLabels(Buffer const & buf, ParIterator const & it)
+{
+	TextClass const & tclass = buf.params().getTextClass();
+	Counters & cnts = tclass.counters();
+	docstring const & foot = from_ascii("footnote");
+	Paragraph const & outer =  it.paragraph();
+	if (!outer.layout()->intitle && cnts.hasCounter(foot)) {
+		cnts.step(foot);
+		//FIXME: the counter should format itself.
+		setLabel(support::bformat(from_ascii("%1$s %2$s"), 
+					  getLayout(buf.params()).labelstring, 
+					  convert<docstring>(cnts.value(foot))));
+	
+	}
+	InsetCollapsable::updateLabels(buf, it);
+}
+
 int InsetFoot::latex(Buffer const & buf, odocstream & os,
 		     OutputParams const & runparams_in) const
 {

src/insets/InsetFoot.h

@@ -40,6 +40,9 @@ public:
 		    OutputParams const &) const;
 	///
 	virtual docstring const editMessage() const;
+	/// Update the counters of this inset and of its contents
+	void updateLabels(Buffer const &, ParIterator const &);
+
 protected:
 	InsetFoot(InsetFoot const &);
 private: