* another try on http://bugzilla.lyx.org/show_bug.cgi?id=4566:

  "Eqnarray multiple cells size change erases what they contain"

  We also apply LFUN_MATH_INSERT to every selected cell if a single math inset is inserted.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23804 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index 923a1236665f54744d8767bce9b0069672502161..ad06eeda5927959dec228f1f320e74710c4da0f6 100644 (file)
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -412,15 +412,14 @@ void InsetMathNest::handleFont
 void InsetMathNest::handleFont(Cursor & cur, docstring const & arg,
        docstring const & font)
 {
+       cur.recordUndoSelection();
+
        // this whole function is a hack and won't work for incremental font
        // changes...
-
-       if (cur.inset().asInsetMath()->name() == font) {
-               cur.recordUndoInset();
+       if (cur.inset().asInsetMath()->name() == font)
                cur.handleFont(to_utf8(font));
-       } else {
+       else
                handleNest(cur, createInsetMath(font), arg);
-       }
 }
 
 
@@ -439,7 +438,6 @@ void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
                return;
        if (i1.idx() == i2.idx()) {
                // the easy case where only one cell is selected
-               cur.recordUndo();
                cur.handleNest(nest);
                cur.insert(arg);
                return;
@@ -447,7 +445,6 @@ void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
        
        // multiple selected cells in a simple non-grid inset
        if (i1.asInsetMath()->nrows() == 0 || i1.asInsetMath()->ncols() == 0) {
-               cur.recordUndoInset();
                for (idx_type i = i1.idx(); i <= i2.idx(); ++i) {
                        // select cell
                        cur.idx() = i;
@@ -469,7 +466,6 @@ void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
        }
        
        // the complicated case with multiple selected cells in a grid
-       cur.recordUndoInset();
        row_type r1, r2;
        col_type c1, c2;
        cap::region(i1, i2, r1, r2, c1, c2);
@@ -497,7 +493,7 @@ void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
 
 void InsetMathNest::handleFont2(Cursor & cur, docstring const & arg)
 {
-       cur.recordUndo();
+       cur.recordUndoSelection();
        Font font;
        bool b;
        font.fromString(to_utf8(arg), b);
@@ -1073,10 +1069,16 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
 // math-insert only handles special math things like "matrix".
        case LFUN_MATH_INSERT: {
                cur.recordUndoSelection();
-               if (cmd.argument() == "^" || cmd.argument() == "_") {
+               if (cmd.argument() == "^" || cmd.argument() == "_")
                        interpretChar(cur, cmd.argument()[0]);
-               } else
-                       cur.niceInsert(cmd.argument());
+               else {
+                       MathData ar;
+                       asArray(cmd.argument(), ar);
+                       if (ar.size() == 1 && ar[0]->asNestInset())
+                               handleNest(cur, ar[0]);
+                       else
+                               cur.niceInsert(cmd.argument());
+               }
                break;
                }