use stream-like syntax for LaTeX output

[lyx.git] / src / mathed / math_decorationinset.C

diff --git a/src/mathed/math_decorationinset.C b/src/mathed/math_decorationinset.C
index d620ed9223fe15fffe112b13b243e2c38c579ef1..becc4183f45efe1600740d1d3e4d60e30ca38802 100644 (file)
--- a/src/mathed/math_decorationinset.C
+++ b/src/mathed/math_decorationinset.C
@@ -30,7 +30,11 @@ bool MathDecorationInset::upper() const
 
 bool MathDecorationInset::isScriptable() const
 {
-       return true;
+       return
+                       name_ == "overbrace" ||
+                       name_ == "underbrace" ||
+                       name_ == "overleftarrow" ||
+                       name_ == "overrightarrow";
 }
 
 
@@ -44,7 +48,21 @@ bool MathDecorationInset::protect() const
 }
 
 
-void MathDecorationInset::metrics(MathStyles st) const
+bool MathDecorationInset::wide() const
+{
+       return
+                       name_ == "overline" ||
+                       name_ == "underline" ||
+                       name_ == "overbrace" ||
+                       name_ == "underbrace" ||
+                       name_ == "overleftarrow" ||
+                       name_ == "overrightarrow" ||
+                       name_ == "widehat" ||
+                       name_ == "widetilde";
+}
+
+
+void MathDecorationInset::metrics(MathMetricsInfo const & st) const
 {
        xcell(0).metrics(st);
        size_    = st;
@@ -69,17 +87,20 @@ void MathDecorationInset::draw(Painter & pain, int x, int y) const
        xo(x);
        yo(x);
        xcell(0).draw(pain, x, y);
-       mathed_draw_deco(pain, x, y + dy_, width_, dh_, name_);
+       if (wide()) 
+               mathed_draw_deco(pain, x, y + dy_, width_, dh_, name_);
+       else {
+               int w = 2 + mathed_char_width(LM_TC_VAR, size(), 'x'); 
+               mathed_draw_deco(pain, x + (width_ - w) / 2, y + dy_, w, dh_, name_);
+       }
 }
 
 
-void MathDecorationInset::write(ostream & os, bool fragile) const
+void MathDecorationInset::write(MathWriteInfo & os) const
 {
-       if (fragile && protect())
+       if (os.fragile && protect())
                os << "\\protect";
-       os << '\\' << name_ << '{';
-       cell(0).write(os, fragile);  
-       os << '}';
+       os << '\\' << name_ << '{' << cell(0) << '}';
 }