Port away from deprecated QStyleOption::init

kmplot/kgradientdialog.cpp

@@ -413,7 +413,7 @@ KGradientButton::~KGradientButton()
 
 void KGradientButton::initStyleOption(QStyleOptionButton *opt) const
 {
-    opt->init(this);
+    opt->initFrom(this);
     opt->text.clear();
     opt->icon = QIcon();
     opt->features = QStyleOptionButton::None;
@@ -480,7 +480,7 @@ void KGradientButton::paintEvent(QPaintEvent *)
     if (hasFocus()) {
         QRect focusRect = style()->subElementRect(QStyle::SE_PushButtonFocusRect, &butOpt, this);
         QStyleOptionFocusRect focusOpt;
-        focusOpt.init(this);
+        focusOpt.initFrom(this);
         focusOpt.rect = focusRect;
         focusOpt.backgroundColor = palette().window().color();
         style()->drawPrimitive(QStyle::PE_FrameFocusRect, &focusOpt, &painter, this);