/*
 * This file is created with Netbeans 6 Plug-In for JavaFX
 */
import javafx.ui.Frame;
import javafx.ui.Label;
import javafx.ui.TextField;
import javafx.ui.Button;
import java.io.*;
import java.lang.System;
import java.text.*;
import javafx.ui.*;


class tempReading {
    attribute CelsiusTemp: String;
    attribute FarenheitTemp: String;
} 

var temp = tempReading {
    CelsiusTemp: "Enter a value"
    FarenheitTemp: "   Farenheit"
};

Frame {
    title: "Celsius Converter "
    content: GroupPanel {
        var InputRow = Row { alignment: BASELINE }
        var OutputRow = Row { alignment: BASELINE }
        var labelsColumn = Column {
            alignment: TRAILING
        }
        
        var fieldsColumn = Column {
            alignment: LEADING
            resizable: true
        }
        rows: [InputRow, OutputRow]
        columns: [fieldsColumn,labelsColumn]
        content:
        [
        TextField {
            row: InputRow
            column: fieldsColumn
            columns: 25
            //Binding the Celsius Temperature attribute to TextField
            value: bind temp.CelsiusTemp
        },
        SimpleLabel {
            row: InputRow
            column: labelsColumn
            text: "Celsius"  
        },
        SimpleLabel {
            row: OutputRow
            column: labelsColumn
            //Binding the Farenheit Temperature attribute to label
            text: bind temp.FarenheitTemp
        },
        Button {
            row: OutputRow
            column: fieldsColumn
            text: "Convert" 
            toolTipText: "Press this button to Convert to Farenheit"
            action: operation() {
                System.out.println("Button Pressed");
                System.out.println(temp.CelsiusTemp);
                try{
                    // Convert String to Number
                    var CelsiusValue = new DecimalFormat("0").parse(temp.CelsiusTemp);
                    System.out.println(CelsiusValue);
                    var Fahtemp = (9/5 * CelsiusValue + 32);
                    System.out.println(Fahtemp);
                    temp.FarenheitTemp = "  Fahrenheit";
                    //String Concatenation
                    temp.FarenheitTemp = Fahtemp.toString().concat(temp.FarenheitTemp);
                // If the input cannot be converted catch ParseExcpetion
                }catch (e:ParseException) {
                    System.out.println("Bad Input");  
                    temp.FarenheitTemp = "  Fahrenheit";
                    temp.CelsiusTemp = "Please enter a valid number";
                }
                
            }
        }]
    }
    visible: true
};