[LyX/master] MathML: InsetMathHull now distinguishes between hull types to present display/inline math and adjust the alignment of the cells

[Thibaut Cuvelier]

commit 2805452229904bef2f022a50b70c6671990666b7
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Tue May 25 03:56:24 2021 +0200

    MathML: InsetMathHull now distinguishes between hull types to present display/inline math and adjust the alignment of the cells
    
    By lynx: https://www.lyx.org/trac/attachment/ticket/12221/0004-mathml-display-changes.patch
---
 src/mathed/InsetMathHull.cpp |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/mathed/InsetMathHull.cpp b/src/mathed/InsetMathHull.cpp
index b880895..fb52049 100644
--- a/src/mathed/InsetMathHull.cpp
+++ b/src/mathed/InsetMathHull.cpp
@@ -2530,8 +2530,15 @@ void InsetMathHull::mathmlize(MathMLStream & ms) const
 	bool const havenumbers = haveNumbers();
 	bool const havetable = havenumbers || nrows() > 1 || ncols() > 1;
 
-	if (havetable)
-		ms << MTag("mtable");
+    if (havetable) {
+        if (getType() == hullSimple)
+            ms << MTag("mtable");
+        else if (getType() >= hullAlign && getType() <= hullXXAlignAt)
+            ms << MTag("mtable", "displaystyle='true' columnalign='right left'");
+        else
+            ms << MTag("mtable", "displaystyle='true'");
+    }
+
 	char const * const celltag = havetable ? "mtd" : "mrow";
 	// FIXME There does not seem to be wide support at the moment
 	// for mlabeledtr, so we have to use just mtr for now.