Fix to bug 2362: Deleting superscript also deletes subscript.

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

diff --git a/src/mathed/math_casesinset.C b/src/mathed/math_casesinset.C
index fc1b3316282e2503228fbf399d5b13d7f7aa4522..a21a0bfa106eb109cd03113d49ac0ece8e3c5329 100644 (file)
--- a/src/mathed/math_casesinset.C
+++ b/src/mathed/math_casesinset.C
@@ -14,8 +14,24 @@
 #include "math_data.h"
 #include "math_mathmlstream.h"
 #include "math_support.h"
+#include "FuncStatus.h"
 #include "LaTeXFeatures.h"
 #include "support/std_ostream.h"
+#include "cursor.h"
+#include "funcrequest.h"
+#include "gettext.h"
+#include "undo.h"
+
+#include "support/lstrings.h"
+
+
+using lyx::support::bformat;
+
+using std::endl;
+using std::max;
+using std::min;
+using std::swap;
+using std::string;
 
 using std::auto_ptr;
 
@@ -42,11 +58,48 @@ void MathCasesInset::metrics(MetricsInfo & mi, Dimension & dim) const
 void MathCasesInset::draw(PainterInfo & pi, int x, int y) const
 {
        mathed_draw_deco(pi, x + 1, y - dim_.ascent(), 6, dim_.height(), "{");
-       MathGridInset::draw(pi, x + 8, y);
+       MathGridInset::drawWithMargin(pi, x, y, 8, 0);
        setPosCache(pi, x, y);
 }
 
 
+void MathCasesInset::doDispatch(LCursor & cur, FuncRequest & cmd)
+{
+       //lyxerr << "*** MathCasesInset: request: " << cmd << endl;
+       switch (cmd.action) {
+       case LFUN_TABULAR_FEATURE: {
+               recordUndo(cur);
+               string const s = cmd.argument;
+               if (s == "add-vline-left" || s == "add-vline-right") {
+                       cur.undispatched();
+                       break;
+               }
+       }
+       default:
+               MathGridInset::doDispatch(cur, cmd);
+       }
+}
+
+
+bool MathCasesInset::getStatus(LCursor & cur, FuncRequest const & cmd,
+               FuncStatus & flag) const
+{
+       switch (cmd.action) {
+       case LFUN_TABULAR_FEATURE: {
+               string const s = cmd.argument;
+               if (s == "add-vline-left" || s == "add-vline-right") {
+                       flag.enabled(false);
+                       flag.message(bformat(
+                               N_("No vertical grid lines in '%1$s'"), s));
+                       return true;
+               }
+       }
+       default:
+               return MathGridInset::getStatus(cur, cmd, flag);
+       }
+}
+
+
 void MathCasesInset::write(WriteStream & os) const
 {
        if (os.fragile())