[LyX/master] GuiBox.cpp: assure that the parameters are not empty

[Uwe Stöhr]

commit a5cc5dce3cf009d621685f01a885cfb0a02a50fb
Author: Uwe Stöhr <uwesto...@lyx.org>
Date:   Fri May 15 03:51:11 2015 +0200

    GuiBox.cpp: assure that the parameters are not empty

diff --git a/src/frontends/qt4/GuiBox.cpp b/src/frontends/qt4/GuiBox.cpp
index 2463dfa..ccf6cd7 100644
--- a/src/frontends/qt4/GuiBox.cpp
+++ b/src/frontends/qt4/GuiBox.cpp
@@ -26,8 +26,8 @@
 #include "support/foreach.h"
 #include "support/lstrings.h"
 
-#include <QPushButton>
 #include <QLineEdit>
+#include <QPushButton>
 
 #ifdef IN
 #undef IN
@@ -390,15 +390,15 @@ docstring GuiBox::dialogToParams() const
        if (thicknessED->isEnabled())
                params.thickness = Length(widgetsToLength(thicknessED, 
thicknessUnitsLC));
        else
-               params.thickness = Length();
+               params.thickness = Length("0.4pt");
        if (separationED->isEnabled())
                params.separation = Length(widgetsToLength(separationED, 
separationUnitsLC));
        else
-               params.separation = Length();
+               params.separation = Length("3pt");
        if (separationED->isEnabled())
                params.shadowsize = Length(widgetsToLength(shadowsizeED, 
shadowsizeUnitsLC));
        else
-               params.shadowsize = Length();
+               params.shadowsize = Length("4pt");
 
        return from_ascii(InsetBox::params2string(params));
 }