* src/output_plaintext.C: check line length before outputting

a word in front of an inset; make sensible use of plaintext()
	return value (IMHO totally broken before)
	* insets/insetfoot.[Ch]: add plaintext()
	* insets/insethfill.[Ch]: adjust plaintext(); make the 
	number of characters determinitic; minor header cleanup
	* insets/insetbase.h: add comment on return value
	of plaintext() - before its meaning was unclear 


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17200 a592a061-630c-0410-9148-cb99ea01b6c8

src/insets/insetbase.h

@@ -201,6 +201,8 @@ public:
 	virtual void infoize2(odocstream &) const {}
 
 	/// plain text output in ucs4 encoding
+	/// return the number of characters, in case of multiple lines of
+	/// output, add runparams.linelen to the number of chars in the last line
 	virtual int plaintext(Buffer const &, odocstream &,
 		OutputParams const &) const;
 	/// docbook output

src/insets/insetfoot.C

@@ -80,6 +80,17 @@ int InsetFoot::latex(Buffer const & buf, odocstream & os,
 }
 
 
+int InsetFoot::plaintext(Buffer const & buf, odocstream & os,
+			   OutputParams const & runparams) const
+{
+	os << '[' << _("footnote") << ":\n";
+	InsetText::plaintext(buf, os, runparams);
+	os << "\n]";
+
+	return 1 + runparams.linelen; // one char on a separate line
+}
+
+
 int InsetFoot::docbook(Buffer const & buf, odocstream & os,
 		       OutputParams const & runparams) const
 {

src/insets/insetfoot.h

@@ -31,8 +31,11 @@ public:
 	int latex(Buffer const &, odocstream &,
 		  OutputParams const &) const;
 	///
+	int plaintext(Buffer const &, odocstream &,
+	              OutputParams const &) const;
+	///
 	int docbook(Buffer const &, odocstream &,
-		    OutputParams const & runparams) const;
+		    OutputParams const &) const;
 	///
 	virtual docstring const editMessage() const;
 protected:

src/insets/insethfill.C

@@ -50,10 +50,10 @@ docstring const InsetHFill::getScreenLabel(Buffer const &) const
 
 
 int InsetHFill::plaintext(Buffer const &, odocstream & os,
-		      OutputParams const &) const
+                          OutputParams const &) const
 {
-	os << '\t';
-	return 0;
+	os << "     ";
+	return 5; 
 }
 
 

src/insets/insethfill.h

@@ -30,10 +30,10 @@ public:
 	InsetBase::Code lyxCode() const { return InsetBase::HFILL_CODE; }
 	///
 	int plaintext(Buffer const &, odocstream &,
-		  OutputParams const & runparams) const;
+	              OutputParams const &) const;
 	///
 	int docbook(Buffer const &, odocstream &,
-		    OutputParams const & runparams) const;
+		    OutputParams const &) const;
 	///
 	void write(Buffer const & buf, std::ostream & os) const;
 	/// We don't need \begin_inset and \end_inset

src/output_plaintext.C

@@ -198,18 +198,24 @@ void writePlaintextParagraph(Buffer const & buf,
 		char_type c = par.getUChar(buf.params(), i);
 		switch (c) {
 		case Paragraph::META_INSET: {
-			InsetBase const * inset = par.getInset(i);
-
+			if (runparams.linelen > 0 &&
+			    currlinelen + word.length() > runparams.linelen) {
+				os << '\n';
+				pair<int, docstring> p = addDepth(depth, ltype_depth);
+				os << p.second;
+				currlinelen = p.first;
+			}
 			os << word;
 			currlinelen += word.length();
 			word.erase();
 
 			OutputParams rp = runparams;
 			rp.depth = par.params().depth();
-			if (inset->plaintext(buf, os, rp)) {
-				// to be sure it breaks paragraph
-				currlinelen += runparams.linelen;
-			}
+			int len = par.getInset(i)->plaintext(buf, os, rp);
+			if (len >= runparams.linelen)
+				currlinelen = len - runparams.linelen;
+			else
+				currlinelen += len;
 			break;
 		}