Added capability to create editors from an editor factory to PgLabItemDelegate

pglablib/AbstractEditorFactory.h

@@ -0,0 +1,25 @@
+#ifndef ABSTRACTEDITORFACTORY_H
+#define ABSTRACTEDITORFACTORY_H
+
+#include <QObject>
+
+class QWidget;
+class QStyleOptionViewItem;
+class QModelIndex;
+class QAbstractItemModel;
+
+/// Base class for factory classes that create item editors used in views.
+///
+/// Specifically the PgLabItemDelegate supports the use of EditorFactories.
+class AbstractEditorFactory: public QObject {
+	Q_OBJECT
+public:
+	using QObject::QObject;
+
+	virtual QWidget *createEditor (QWidget *parent, const QStyleOptionViewItem &option,
+								   const QModelIndex &index) const = 0;
+	virtual void setEditorData(QWidget *editor, const QModelIndex &index) const = 0;
+	virtual void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const = 0;
+};
+
+#endif // ABSTRACTEDITORFACTORY_H