Forgotten modifications.

core/ivalidator.h

@@ -1,5 +1,31 @@
 #ifndef IVALIDATOR_H
 #define IVALIDATOR_H
 
+#include <QWidget>
+#include <QString>
+
+class IValidator
+{
+public:
+    IValidator(QWidget *widget, const QString &errMessage)
+    {
+        m_widget = widget;
+        m_errMessage = errMessage;
+    }
+
+    virtual bool validate() = 0;
+
+    QString errMessage()
+    {
+        return m_errMessage;
+    }
+
+protected:
+    QWidget *m_widget;
+
+private:
+    QString m_errMessage;
+};
+
 #endif // IVALIDATOR_H