security check on parent widget (just in case)

6 years ago · 3a4843f421
parent e21fe80331
commit 3a4843f421
1 changed files with 7 additions and 4 deletions
--- a/src/gui/UBDockPalette.cpp
+++ b/src/gui/UBDockPalette.cpp
@ -510,10 +510,13 @@ void UBDockPalette::moveTabs()
    int y = border();
    if(eUBDockTabOrientation_Down == mTabsOrientation)
    {
-       if (mOrientation == eUBDockOrientation_Right)
-           y = parentWidget()->height() - border()- mTabWidgets.size() * TABSIZE;
-       else
-           y = height() - border()- mTabWidgets.size() * TABSIZE;
+        if (mOrientation == eUBDockOrientation_Right)
+        {
+            if (parentWidget())
+                y = parentWidget()->height() - border()- mTabWidgets.size() * TABSIZE;
+        }
+        else
+            y = height() - border()- mTabWidgets.size() * TABSIZE;
    }

    mHTab = y;