State Transition Test Creator Code

// File: DefinitionStateMachine.cs
// Goal: Common functionality of definition of statemachine

using System.Data;
using System.Drawing;
using System.Windows.Forms;

namespace StateTransitionTestCreator
{
    public class DefinitionStateMachine : Panel, IDefinitionStateMachine
    {
        // TODO Check on deadlock
        // TODO Add state -> add transition beginning from this state
        // FIXME delete state/event -> transitions not updated

        public TableDefinition tableEvents;
        public TableDefinition tableStates;
        public TableTransition tableTransitions;

        private static DefinitionStateMachine instance = new DefinitionStateMachine();

        public static DefinitionStateMachine Instance
        {
            get
            {
                return instance;
            }
        }

        private DefinitionStateMachine()
        {
            tableEvents = new TableDefinition(new Point(5, 350), 15, "Events");
            tableEvents.ContentChangedEvent += new TableDefinition.ContentChangedDelegate(UpdateEventNames);

            tableStates = new TableDefinition(new Point(5, 10), 15, "States");
            tableStates.ContentChangedEvent += new TableDefinition.ContentChangedDelegate(UpdateStateNames);

            tableTransitions = new TableTransition(new Point(320, 10), 32, "Transitions");
        }

        public void ClearTable()
        {
            tableEvents.ClearTable();
            tableStates.ClearTable();
            tableTransitions.ClearTable();
        }

        public void UpdateTables()
        {
            tableTransitions.UpdateTable();
        }

        private void UpdateEventNames(int index)
        {
            tableTransitions.UpdateTransitionEvents();  // TODO use index to speed up 
            PanelTestCases panelTestCases = PanelTestCases.Instance;
            panelTestCases.tableTestCases.UpdateEventName(index);
        }

        private void UpdateStateNames(int index)
        {
            tableTransitions.UpdateTransitionStates();  // TODO use index to speed up 
            PanelTestCases panelTestCases = PanelTestCases.Instance;
            panelTestCases.tableTestCases.UpdateStateName(index);
        }
    }
}