NewItemDialog uses dynamically generated control widgets for model data as well. Added a WidgetHelper class to consolidate identical source code for ItemDetailMapper and NewItemDialog.

widgethelper.cpp

@@ -0,0 +1,45 @@
+#include "widgethelper.h"
+
+#include <QComboBox>
+#include <QLineEdit>
+#include <QSpinBox>
+#include <QStringListModel>
+
+QWidget* WidgetHelper::createControlWidget(const UserRoles role, QWidget* parent) {
+  QWidget* control;
+  if (STRING_ROLES.contains(role)) {
+    control = new QLineEdit();
+  } else if (TYPE_ROLES.contains(role)) {
+    control = createComboBox(role, parent);
+  } else if (INT_ROLES.contains(role)) {
+    QSpinBox* spinBox = new QSpinBox();
+    spinBox->setMaximum(1000);
+    control = spinBox;
+  } else if (DOUBLE_ROLES.contains(role)) {
+    QDoubleSpinBox* spinBox = new QDoubleSpinBox();
+    spinBox->setMaximum(1000);
+    control = spinBox;
+  } else {
+    qCritical() << QString("Unsupported role %1!!!").arg(role);
+    qDebug() << "Using line edit as well and pretend it's a string role...";
+    control = new QLineEdit();
+  }
+  return control;
+}
+
+QWidget* WidgetHelper::createComboBox(const UserRoles role, QWidget* parent) {
+  QStringListModel* typeModel;
+  if (role == TypeRole) {
+    typeModel = new QStringListModel(TYPES, parent);
+  } else {
+    qCritical() << "Unsupported type with role:" << role
+                << "- Using string list model with only one empty string!";
+    typeModel = new QStringListModel({""}, parent);
+  }
+  QComboBox* comboBox = new QComboBox();
+  comboBox->setModel(typeModel);
+  comboBox->setCurrentText("");
+  return comboBox;
+}
+
+WidgetHelper::WidgetHelper() {}