Added an EditItemDialog dummy, based on the NewItemDialog.

Dialogs/edititemdialog.h

@@ -0,0 +1,36 @@
+#ifndef EDITITEMDIALOG_H
+#define EDITITEMDIALOG_H
+
+#include "abstractdialog.h"
+
+class QDoubleSpinBox;
+class QLineEdit;
+class QSpinBox;
+class QLabel;
+
+class EditItemDialog : public AbstractDialog {
+  Q_OBJECT
+ public:
+  EditItemDialog(QWidget* parent = nullptr);
+
+  /// AbstractDialog interface
+  void createContent() override;
+
+ private:
+  QLabel* m_nameLabel   = nullptr;
+  QLineEdit* m_nameEdit = nullptr;
+
+  QLabel* m_descriptionLabel   = nullptr;
+  QLineEdit* m_descriptionEdit = nullptr;
+
+  QLabel* m_infoLabel   = nullptr;
+  QLineEdit* m_infoEdit = nullptr;
+
+  QLabel* m_amountLabel = nullptr;
+  QSpinBox* m_amountBox = nullptr;
+
+  QLabel* m_factorLabel       = nullptr;
+  QDoubleSpinBox* m_factorBox = nullptr;
+};
+
+#endif  // EDITITEMDIALOG_H