Port away from KStatefulBrush::brush(const QWidget*)

Soon to be deprecated, use the QPalette overload instead.

src/ksieveui/autocreatescripts/sieveactions/widgets/addresslineedit.cpp

@@ -45,7 +45,7 @@ void AddressLineEdit::verifyAddress()
     // Fix check multi address
     if (mNegativeBackground.isEmpty()) {
         KStatefulBrush bgBrush = KStatefulBrush(KColorScheme::View, KColorScheme::NegativeText);
-        mNegativeBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(this).color().name());
+        mNegativeBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(palette()).color().name());
     }
     if (mEmailIsInvalid) {
         styleSheet = mNegativeBackground;

src/ksieveui/editor/webengine/findbar/findbarbase.cpp

@@ -146,9 +146,9 @@ void FindBarBase::setFoundMatch(bool match)
     if (!mSearch->text().isEmpty()) {
         if (mNegativeBackground.isEmpty()) {
             KStatefulBrush bgBrush(KColorScheme::View, KColorScheme::PositiveBackground);
-            mPositiveBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(mSearch).color().name());
+            mPositiveBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(mSearch->palette()).color().name());
             bgBrush = KStatefulBrush(KColorScheme::View, KColorScheme::NegativeBackground);
-            mNegativeBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(mSearch).color().name());
+            mNegativeBackground = QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(mSearch->palette()).color().name());
         }
         if (match) {
             styleSheet = mPositiveBackground;

src/ksieveui/vacation/vacationmaillineedit.cpp

@@ -17,7 +17,7 @@ void VacationMailLineEdit::setInvalidEmail(bool state)
 {
     if (state) {
         const KStatefulBrush bgBrush(KColorScheme::View, KColorScheme::NegativeBackground);
-        setStyleSheet(QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(this).color().name()));
+        setStyleSheet(QStringLiteral("QLineEdit{ background-color:%1 }").arg(bgBrush.brush(palette()).color().name()));
     } else {
         setStyleSheet(QString());
     }