{

public class UI : Form

{

ComboBox fromBox;

ComboBox toBox;

RadioButton firstClass;

RadioButton secondClass;

RadioButton oneWay;

RadioButton returnWay;

RadioButton noDiscount;

RadioButton twentyDiscount;

RadioButton fortyDiscount;

ComboBox payment;

Button pay;

public UI ()

{

initializeControls ();

}

private void handlePayment(UIInfo info)

{

// *************************************

// This is the code you need to refactor

// *************************************

Purchase currentpurchase = new Purchase(info.From, info.To, info.Discount, info.Class, info.Payment);

currentpurchase.makeTrip(info.To, info.From);

float total = currentpurchase.calculateTotal(info.Way == UIWay.Return);

currentpurchase.processPayment(total);

//// Get number of tariefeenheden

//int tariefeenheden = Tariefeenheden.getTariefeenheden (info.From, info.To);

//// Compute the column in the table based on choices

//int tableColumn;

//// First based on class

//switch (info.Class) {

//case UIClass.FirstClass:

// tableColumn = 3;

// break;

//default:

// tableColumn = 0;

// break;

//}

//// Then, on the discount

//switch (info.Discount) {

//case UIDiscount.TwentyDiscount:

// tableColumn += 1;

// break;

//case UIDiscount.FortyDiscount:

// tableColumn += 2;

// break;

//}

//// Get price

//float price = PricingTable.getPrice (tariefeenheden, tableColumn);

//if (info.Way == UIWay.Return) {

// price *= 2;

//}

//// Add 50 cent if paying with credit card

//if (info.Payment == UIPayment.CreditCard) {

// price += 0.50f;

//}

//// Pay

//switch (info.Payment) {

//case UIPayment.CreditCard:

// CreditCard c = new CreditCard ();

// c.Connect ();

// int ccid = c.BeginTransaction (price);

// c.EndTransaction (ccid);

// break;

//case UIPayment.DebitCard:

// DebitCard d = new DebitCard ();

// d.Connect ();

// int dcid = d.BeginTransaction (price);

// d.EndTransaction (dcid);

// break;

//case UIPayment.Cash:

// IKEAMyntAtare2000 coin = new IKEAMyntAtare2000 ();

// coin.starta ();

// coin.betala ((int) Math.Round(price * 100));

// coin.stoppa ();

// break;

//}

}

#region Set-up -- don't look at it

private void initializeControls()

{

// Set label

this.Text = "MSO Lab Exercise III";

// this.FormBorderStyle = FormBorderStyle.FixedSingle;

this.Width = 500;

this.Height = 210;

// Set layout

var grid = new TableLayoutPanel ();

grid.Dock = DockStyle.Fill;

grid.Padding = new Padding (5);

this.Controls.Add (grid);

grid.RowCount = 4;

grid.RowStyles.Add (new RowStyle (SizeType.Absolute, 20));

grid.RowStyles.Add (new RowStyle (SizeType.Percent, 100));

grid.RowStyles.Add (new RowStyle (SizeType.Absolute, 20));

grid.RowStyles.Add (new RowStyle (SizeType.Absolute, 40));

grid.ColumnCount = 6;

for (int i = 0; i < 6; i++)

{

ColumnStyle c = new ColumnStyle (SizeType.Percent, 16.66666f);

grid.ColumnStyles.Add (c);

}

// Create From and To

var fromLabel = new Label ();

fromLabel.Text = "From:";

fromLabel.TextAlign = ContentAlignment.MiddleRight;

grid.Controls.Add (fromLabel, 0, 0);

fromLabel.Dock = DockStyle.Fill;

fromBox = new ComboBox ();

fromBox.DropDownStyle = ComboBoxStyle.DropDownList;

fromBox.Items.AddRange (Tariefeenheden.getStations ());

fromBox.SelectedIndex = 0;

grid.Controls.Add (fromBox, 1, 0);

grid.SetColumnSpan (fromBox, 2);

fromBox.Dock = DockStyle.Fill;

var toLabel = new Label ();

toLabel.Text = "To:";

toLabel.TextAlign = ContentAlignment.MiddleRight;

grid.Controls.Add (toLabel, 3, 0);

toLabel.Dock = DockStyle.Fill;

toBox = new ComboBox ();

toBox.DropDownStyle = ComboBoxStyle.DropDownList;

toBox.Items.AddRange (Tariefeenheden.getStations ());

toBox.SelectedIndex = 0;

grid.Controls.Add (toBox, 4, 0);

grid.SetColumnSpan (toBox, 2);

toBox.Dock = DockStyle.Fill;

// Create groups

GroupBox classGroup = new GroupBox ();

classGroup.Text = "Class";

classGroup.Dock = DockStyle.Fill;

grid.Controls.Add (classGroup, 0, 1);

grid.SetColumnSpan (classGroup, 2);

var classGrid = new TableLayoutPanel ();

classGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 50));

classGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 50));

classGrid.Dock = DockStyle.Fill;

classGroup.Controls.Add (classGrid);

GroupBox wayGroup = new GroupBox ();

wayGroup.Text = "Amount";

wayGroup.Dock = DockStyle.Fill;

grid.Controls.Add (wayGroup, 2, 1);

grid.SetColumnSpan (wayGroup, 2);

var wayGrid = new TableLayoutPanel ();

wayGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 50));

wayGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 50));

wayGrid.Dock = DockStyle.Fill;

wayGroup.Controls.Add (wayGrid);

GroupBox discountGroup = new GroupBox ();

discountGroup.Text = "Discount";

discountGroup.Dock = DockStyle.Fill;

grid.Controls.Add (discountGroup, 4, 1);

grid.SetColumnSpan (discountGroup, 2);

var discountGrid = new TableLayoutPanel ();

discountGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 33.33333f));

discountGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 33.33333f));

discountGrid.RowStyles.Add (new RowStyle (SizeType.Percent, 33.33333f));

discountGrid.Dock = DockStyle.Fill;

discountGroup.Controls.Add (discountGrid);

// Create radio buttons

firstClass = new RadioButton ();

firstClass.Text = "1st class";

firstClass.Checked = true;

classGrid.Controls.Add (firstClass);

secondClass = new RadioButton ();

secondClass.Text = "2nd class";

classGrid.Controls.Add (secondClass);

oneWay = new RadioButton ();

oneWay.Text = "One-way";

oneWay.Checked = true;

wayGrid.Controls.Add (oneWay);

returnWay = new RadioButton ();

returnWay.Text = "Return";

wayGrid.Controls.Add (returnWay);

noDiscount = new RadioButton ();

noDiscount.Text = "No discount";

noDiscount.Checked = true;

discountGrid.Controls.Add (noDiscount);

twentyDiscount = new RadioButton ();

twentyDiscount.Text = "20% discount";

discountGrid.Controls.Add (twentyDiscount);

fortyDiscount = new RadioButton ();

fortyDiscount.Text = "40% discount";

discountGrid.Controls.Add (fortyDiscount);

// Payment option

Label paymentLabel = new Label ();

paymentLabel.Text = "Payment by:";

paymentLabel.Dock = DockStyle.Fill;

paymentLabel.TextAlign = ContentAlignment.MiddleRight;

grid.Controls.Add (paymentLabel, 0, 2);

payment = new ComboBox ();

payment.DropDownStyle = ComboBoxStyle.DropDownList;

payment.Items.AddRange (new String[] { "Credit card", "Debit card", "Cash" });

payment.SelectedIndex = 0;

payment.Dock = DockStyle.Fill;

grid.Controls.Add (payment, 1, 2);

grid.SetColumnSpan (payment, 5);

// Pay button

pay = new Button ();

pay.Text = "Pay";

pay.Dock = DockStyle.Fill;

grid.Controls.Add (pay, 0, 3);

grid.SetColumnSpan (pay, 6);

// Set up event

pay.Click += (object sender, EventArgs e) => handlePayment(getUIInfo());

}

private UIInfo getUIInfo()

{

UIClass cls;

if (firstClass.Checked)

cls = UIClass.FirstClass;

else

cls = UIClass.SecondClass;

UIWay way;

if (oneWay.Checked)

way = UIWay.OneWay;

else

way = UIWay.Return;

UIDiscount dis;

if (noDiscount.Checked)

dis = UIDiscount.NoDiscount;

else if (twentyDiscount.Checked)

dis = UIDiscount.TwentyDiscount;

else

dis = UIDiscount.FortyDiscount;

UIPayment pment;

switch ((string)payment.SelectedItem) {

case "Credit card":

pment = UIPayment.CreditCard;

break;

case "Debit card":

pment = UIPayment.DebitCard;

break;

default:

pment = UIPayment.Cash;

break;

}

return new UIInfo ((string)fromBox.SelectedItem,

(string)toBox.SelectedItem,

cls, way, dis, pment);

}

#endregion

}