* src/Spacing.cpp (writeBeginEnv, writeEndEnv): add a bool parameter

directing to use memoir's capitalized latex macros.
	* src/LaTeXFeatures.cpp (getPackages): act on feature "SetSpace".
	* src/output_latex.cpp (TeXOnePar): ditto

	* lib/layouts/memoir.layout: provide feature SetSpace, indicating that
	memoir provides the setspace functionality, but with a different syntax.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22551 a592a061-630c-0410-9148-cb99ea01b6c8

lib/layouts/memoir.layout

@@ -15,6 +15,9 @@ DefaultStyle       Standard
 PageStyle          Headings
 Provides makeidx   1
 Provides framed    1
+# Memoir has support for line spacing, but uses different names from
+# what setspace.sty does.  
+Provides SetSpace  1
 
 
 ClassOptions

src/LaTeXFeatures.cpp

@@ -642,11 +642,13 @@ string const LaTeXFeatures::getPackages() const
 	}
 
 	// setspace.sty
-	if ((params_.spacing().getSpace() != Spacing::Single
-	     && !params_.spacing().isDefault())
-	    || isRequired("setspace")) {
+	if ((isRequired("setspace") 
+	     || ((params_.spacing().getSpace() != Spacing::Single
+		  && !params_.spacing().isDefault())))
+	    && !tclass.provides("SetSpace")) {
 		    packages << "\\usepackage{setspace}\n";
 	}
+	bool const upcase = tclass.provides("SetSpace");
 	switch (params_.spacing().getSpace()) {
 	case Spacing::Default:
 	case Spacing::Single:
@@ -654,13 +656,13 @@ string const LaTeXFeatures::getPackages() const
 		//packages += "\\singlespacing\n";
 		break;
 	case Spacing::Onehalf:
-		packages << "\\onehalfspacing\n";
+		packages << (upcase ? "\\OnehalfSpacing\n" : "\\onehalfspacing\n");
 		break;
 	case Spacing::Double:
-		packages << "\\doublespacing\n";
+		packages << (upcase ? "\\DoubleSpacing\n" : "\\doublespacing\n");
 		break;
 	case Spacing::Other:
-		packages << "\\setstretch{"
+		packages << (upcase ? "\\setSingleSpace{" : "\\setstretch{")
 			 << params_.spacing().getValue() << "}\n";
 		break;
 	}

src/Spacing.cpp

@@ -89,20 +89,24 @@ void Spacing::writeFile(ostream & os, bool para) const
 }
 
 
-string const Spacing::writeEnvirBegin() const
+string const Spacing::writeEnvirBegin(bool useSetSpace) const
 {
 	switch (space) {
 	case Default: break; // do nothing
 	case Single:
-		return "\\begin{singlespace}";
+		return (useSetSpace ? "\\begin{SingleSpace}"
+			: "\\begin{singlespace}");
 	case Onehalf:
-		return "\\begin{onehalfspace}";
+		return (useSetSpace ? "\\begin{OnehalfSpace}"
+			: "\\begin{onehalfspace}");
 	case Double:
-		return "\\begin{doublespace}";
+		return (useSetSpace ? "\\begin{DoubleSpace}" 
+			: "\\begin{doublespace}");
 	case Other:
 	{
 		ostringstream ost;
-		ost << "\\begin{spacing}{"
+		ost << (useSetSpace ? "\\begin{Spacing}{"
+			: "\\begin{spacing}{" )
 		    << getValueAsString() << '}';
 		return ost.str();
 	}
@@ -111,18 +115,21 @@ string const Spacing::writeEnvirBegin() const
 }
 
 
-string const Spacing::writeEnvirEnd() const
+string const Spacing::writeEnvirEnd(bool useSetSpace) const
 {
 	switch (space) {
 	case Default: break; // do nothing
 	case Single:
-		return "\\end{singlespace}";
+		return (useSetSpace ? "\\end{SingleSpace}"
+			: "\\end{singlespace}");
 	case Onehalf:
-		return "\\end{onehalfspace}";
+		return (useSetSpace ? "\\end{OnehalfSpace}"
+			: "\\end{onehalfspace}");
 	case Double:
-		return "\\end{doublespace}";
+		return (useSetSpace ? "\\end{DoubleSpace}" 
+			: "\\end{doublespace}");
 	case Other:
-		return "\\end{spacing}";
+		return (useSetSpace ? "\\end{Spacing}" : "\\end{spacing}") ;
 	}
 	return string();
 }

src/Spacing.h

@@ -58,10 +58,12 @@ public:
 	void set(Spacing::Space sp, std::string const & val);
 	///
 	void writeFile(std::ostream &, bool para = false) const;
-	///
-	std::string const writeEnvirBegin() const;
-	///
-	std::string const writeEnvirEnd() const;
+	/// useSetSpace is true when using the variant supported by
+	/// the memoir class.
+	std::string const writeEnvirBegin(bool useSetSpace) const;
+	/// useSetSpace is true when using the variant supported by
+	/// the memoir class.
+	std::string const writeEnvirEnd(bool useSetSpace) const;
 
 private:
 	///

src/output_latex.cpp

@@ -491,6 +491,7 @@ TeXOnePar(Buffer const & buf,
 
 	// In an inset with unlimited length (all in one row),
 	// don't allow any special options in the paragraph
+	bool const useSetSpace = bparams.getTextClass().provides("SetSpace");
 	if (!pit->forceDefaultParagraphs()) {
 		if (pit->params().startOfAppendix()) {
 			os << "\\appendix\n";
@@ -501,7 +502,7 @@ TeXOnePar(Buffer const & buf,
 			&& (pit == paragraphs.begin()
 			    || !boost::prior(pit)->hasSameLayout(*pit)))
 		{
-			os << from_ascii(pit->params().spacing().writeEnvirBegin())
+			os << from_ascii(pit->params().spacing().writeEnvirBegin(useSetSpace))
 			    << '\n';
 			texrow.newline();
 		}
@@ -611,7 +612,7 @@ TeXOnePar(Buffer const & buf,
 				os << '\n';
 				texrow.newline();
 			}
-			os << from_ascii(pit->params().spacing().writeEnvirEnd());
+			os << from_ascii(pit->params().spacing().writeEnvirEnd(useSetSpace));
 			pending_newline = true;
 		}
 	}