support for AMS flalign environment

[features.git] / src / mathed / math_hullinset.C

diff --git a/src/mathed/math_hullinset.C b/src/mathed/math_hullinset.C
index 4f5a81d29b9d640feb48e1006cc34819102eba8a..5c99996614b94bf685bd16441fffc0acce0b487e 100644 (file)
--- a/src/mathed/math_hullinset.C
+++ b/src/mathed/math_hullinset.C
@@ -38,6 +38,8 @@ namespace {
                        return 3;
                if (type == "align")
                        return 2;
+               if (type == "flalign")
+                       return 2;
                if (type == "alignat")
                        return 2;
                if (type == "xalignat")
@@ -77,6 +79,7 @@ namespace {
                if (s == "xxalignat") return 7;
                if (s == "multline")  return 8;
                if (s == "gather")    return 9;
+               if (s == "flalign")   return 10;
                lyxerr << "unknown hull type '" << s << "'\n";
                return 0;
        }
@@ -151,7 +154,7 @@ int MathHullInset::defaultColSpace(col_type col)
                return 0;
        if (type_ == "xalignat")
                return (col & 1) ? 20 : 0;
-       if (type_ == "xxalignat")
+       if (type_ == "xxalignat" || type_ == "flalign")
                return (col & 1) ? 40 : 0;
        return 0;
 }
@@ -278,6 +281,7 @@ bool MathHullInset::ams() const
 {
        return
                type_ == "align" ||
+               type_ == "flalign" ||
                type_ == "multline" ||
                type_ == "gather" ||
                type_ == "alignat" ||
@@ -353,7 +357,7 @@ void MathHullInset::header_write(WriteStream & os) const
                        os << "\\[\n";
        }
 
-       else if (type_ == "eqnarray" || type_ == "align")
+       else if (type_ == "eqnarray" || type_ == "align" || type_ == "flalign")
                        os << "\\begin{" << type_ << star(n) << "}\n";
 
        else if (type_ == "alignat" || type_ == "xalignat")
@@ -388,8 +392,8 @@ void MathHullInset::footer_write(WriteStream & os) const
                else
                        os << "\\]\n";
 
-       else if (type_ == "eqnarray" || type_ == "align" || type_ == "alignat"
-             || type_ == "xalignat")
+       else if (type_ == "eqnarray" || type_ == "align" || type_ == "flalign"  
+            || type_ == "alignat" || type_ == "xalignat")
                os << "\n\\end{" << type_ << star(n) << "}\n";
 
        else if (type_ == "xxalignat" || type_ == "multline" || type_ == "gather")
@@ -403,7 +407,7 @@ void MathHullInset::footer_write(WriteStream & os) const
 bool MathHullInset::colChangeOK() const
 {
        return
-               type_ == "align" || type_ == "alignat" ||
+               type_ == "align" || type_ == "flalign" ||type_ == "alignat" ||
                type_ == "xalignat" || type_ == "xxalignat";
 }
 
@@ -588,7 +592,7 @@ void MathHullInset::mutate(string const & newtype)
 
        else if (type_ == "multline") {
                if (newtype == "gather" || newtype == "align" ||        
-                          newtype == "xalign" || newtype == "xxalign")
+                   newtype == "xalignat" || newtype == "xxalignat" || newtype == "flalign")
                        setType(newtype);
                else if (newtype == "eqnarray") {
                        MathGridInset::addCol(1);