Properly track the lifetime of signals2::slots (#8261)

[lyx.git] / src / frontends / qt4 / GuiHSpace.cpp

diff --git a/src/frontends/qt4/GuiHSpace.cpp b/src/frontends/qt4/GuiHSpace.cpp
index 57d4e982e0b9647a0fb07a718c257b7fe5f1bf95..ad829ecd814df0e7cae334838aedc110c03622c4 100644 (file)
--- a/src/frontends/qt4/GuiHSpace.cpp
+++ b/src/frontends/qt4/GuiHSpace.cpp
@@ -81,10 +81,13 @@ GuiHSpace::GuiHSpace(bool math_mode, QWidget * parent)
        connect(fillPatternCO, SIGNAL(activated(int)),
                this, SLOT(changedSlot()));
 
+       // Set up a signed (glue) length validator
+       LengthValidator * v = new LengthValidator(valueLE);
        if (math_mode_)
-               valueLE->setValidator(unsignedLengthValidator(valueLE));
+               v->setBottom(Length());
        else
-               valueLE->setValidator(unsignedGlueLengthValidator(valueLE));
+               v->setBottom(GlueLength());
+       valueLE->setValidator(v);
 
        // initialize the length validator
        addCheckedWidget(valueLE, valueL);
@@ -99,7 +102,7 @@ void GuiHSpace::changedSlot()
 }
 
 
-void GuiHSpace::enableWidgets()
+void GuiHSpace::enableWidgets() const
 {
        QString const selection = spacingCO->itemData(spacingCO->currentIndex()).toString();
        bool const custom = selection == "custom";
@@ -299,8 +302,19 @@ docstring GuiHSpace::dialogToParams() const
 }
 
 
-bool GuiHSpace::checkWidgets() const
+bool GuiHSpace::checkWidgets(bool readonly) const
 {
+       valueLE->setReadOnly(readonly);
+
+       if (readonly) {
+               spacingCO->setEnabled(false);
+               unitCO->setEnabled(false);
+               fillPatternCO->setEnabled(false);
+               keepCB->setEnabled(false);
+               valueLE->setEnabled(false);
+       } else
+               enableWidgets();
+
        if (!InsetParamsWidget::checkWidgets())
                return false;
        return spacingCO->itemData(spacingCO->currentIndex()).toString() != "custom"