Andreas' patch to prevent crash on click on previewd inset

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

diff --git a/src/mathed/math_splitinset.C b/src/mathed/math_splitinset.C
index 1a37210d7895f9202ba7c060347891e93993eb90..e372b5d658f99c4737d4a85a5de26e1b524468c6 100644 (file)
--- a/src/mathed/math_splitinset.C
+++ b/src/mathed/math_splitinset.C
@@ -1,21 +1,85 @@
-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \file math_splitinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
 
 #include "math_splitinset.h"
+#include "math_data.h"
 #include "math_mathmlstream.h"
+#include "math_streamstr.h"
+
+#include "funcrequest.h"
+#include "FuncStatus.h"
+#include "gettext.h"
+
+#include "support/lstrings.h"
+#include "support/std_ostream.h"
 
 
-MathSplitInset::MathSplitInset(int n)
-       : MathGridInset(2, n)
+using lyx::support::bformat;
+using std::string;
+using std::auto_ptr;
+
+
+MathSplitInset::MathSplitInset(string const & name)
+       : MathGridInset(1, 1), name_(name)
 {
        setDefaults();
 }
 
 
-MathInset * MathSplitInset::clone() const
+auto_ptr<InsetBase> MathSplitInset::doClone() const
 {
-       return new MathSplitInset(*this);
+       return auto_ptr<InsetBase>(new MathSplitInset(*this));
+}
+
+
+char MathSplitInset::defaultColAlign(col_type col)
+{
+       if (name_ == "split")
+               return 'l';
+       if (name_ == "gathered")
+               return 'c';
+       if (name_ == "aligned")
+               return (col & 1) ? 'l' : 'r';
+       if (name_ == "alignedat")
+               return (col & 1) ? 'l' : 'r';
+       return 'l';
+}
+
+
+void MathSplitInset::draw(PainterInfo & pi, int x, int y) const
+{
+       MathGridInset::draw(pi, x, y);
+       setPosCache(pi, x, y);
+}
+
+
+bool MathSplitInset::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.message(bformat(
+                       N_("Can't add vertical grid lines in '%1$s'"),
+                               name_));
+                       flag.enabled(false);
+                       return true;
+               }
+               return MathGridInset::getStatus(cur, cmd, flag);
+       }
+       default:
+               return MathGridInset::getStatus(cur, cmd, flag);
+       }
 }
 
 
@@ -23,9 +87,17 @@ void MathSplitInset::write(WriteStream & ws) const
 {
        if (ws.fragile())
                ws << "\\protect";
-       ws << "\\begin{split}";
+       ws << "\\begin{" << name_ << '}';
        MathGridInset::write(ws);
        if (ws.fragile())
                ws << "\\protect";
-       ws << "\\end{split}\n";
+       ws << "\\end{" << name_ << "}\n";
+}
+
+
+void MathSplitInset::infoize(std::ostream & os) const
+{
+       string name = name_;
+       name[0] = lyx::support::uppercase(name[0]);
+       os << name << ' ';
 }