Fix display and export of some latex macros

[lyx.git] / src / mathed / InsetMathGrid.cpp

diff --git a/src/mathed/InsetMathGrid.cpp b/src/mathed/InsetMathGrid.cpp
index 4e9de1de1034f8d01524220e2624da7b03de737d..3d60683a9bf2bce26042d99cf6d271928822d109 100644 (file)
--- a/src/mathed/InsetMathGrid.cpp
+++ b/src/mathed/InsetMathGrid.cpp
@@ -636,10 +636,13 @@ void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
                                                - i * vlinesep()
                                                - vlinesep()/2 - colsep()/2;
                                        int top_offset;
-                                       if (r > 0)
+                                       // prevRowHasLine needs to be changed if multicolumn lines are supported
+                                       bool const prevRowHasLine(r > 0);
+                                       if (prevRowHasLine)
+                                               // start from offset of previous row to create a continous line
                                                top_offset = rowinfo_[r - 1].offset_ + rowinfo_[r - 1].descent_;
                                        else
-                                               top_offset = rowinfo_[0].offset_- rowinfo_[0].ascent_;
+                                               top_offset = rowinfo_[r].offset_- rowinfo_[r].ascent_;
                                        pi.pain.line(xx, y + top_offset,
                                                xx, y + rowinfo_[r].offset_ + rowinfo_[r].descent_,
                                                Color_foreground);