GUI: Let CreateOptionUI caller pre-initialise the QLayout

Author: luke-jr

src/qt/optionsdialog.cpp

@@ -60,12 +60,12 @@ void OptionsDialog::FixTabOrder(QWidget * const o)
     prevwidget = o;
 }
 
-void OptionsDialog::CreateOptionUI(QBoxLayout * const layout, QWidget * const o, const QString& text)
+void OptionsDialog::CreateOptionUI(QBoxLayout * const layout, QWidget * const o, const QString& text, QLayout *horizontalLayout)
 {
     QWidget * const parent = o->parentWidget();
     const QStringList text_parts = text.split("%s");
 
-    QHBoxLayout * const horizontalLayout = new QHBoxLayout();
+    if (!horizontalLayout) horizontalLayout = new QHBoxLayout();
 
     QLabel * const labelBefore = new QLabel(parent);
     labelBefore->setText(text_parts[0]);

src/qt/optionsdialog.h

@@ -18,6 +18,7 @@ class QBoxLayout;
 class QCheckBox;
 class QDataWidgetMapper;
 class QDoubleSpinBox;
+class QLayout;
 class QSpinBox;
 class QString;
 class QValueComboBox;
@@ -94,7 +95,7 @@ private Q_SLOTS:
 
     QWidget *prevwidget{nullptr};
     void FixTabOrder(QWidget *);
-    void CreateOptionUI(QBoxLayout *, QWidget *, const QString& text);
+    void CreateOptionUI(QBoxLayout *, QWidget *, const QString& text, QLayout *horizontalLayout = nullptr);
 
     QCheckBox *walletrbf;