import jltk.*;
import jltk.gui.*;

public class TemperaturGUI extends App
{
    Label lblTitle;
    TextField txtCelsius, txtFahrenheit;
    Button btnCalc;

    public TemperaturGUI()
    {
        super(300,200);
        this.window.setTitle("Temperaturrechner");
        this.lblTitle = new Label(10,10,200,25,"Fahrenheit - Celsius");
        this.lblTitle.setFontSize(16);
        this.lblTitle.setFontStyle(true, false);

        this.txtCelsius = new TextField(10,100,75,25,"°C");

        this.txtFahrenheit = new TextField(215,100,75,25,"°F");
        this.txtFahrenheit.disableEdit();
        
        this.btnCalc = new Button(10,135,280,25,"Berechne");
        this.btnCalc.setOnButtonClicked("convert");
        
    }

    public void convert(){
        double celsius = this.txtCelsius.getContentAsDouble();
        double fahrenheit = celsius*1.8+32;
        this.txtFahrenheit.setContent(fahrenheit);
    }

}