import java.awt.*;

// import java.io.*;


class ParameterDouble{

    private double value;

    // Small panel for the GUI containing Label and InputTextField
    private Panel panelWithInput;
    private TextField inputField;
    private String labelString;

    // PrintWriter printlog = new PrintWriter(System.out, true);


    ParameterDouble(){
        labelString = new String();
	value = 0.0; 
    }

    ParameterDouble( String labelStringIn, double valueIn ){
        labelString = new String();
        labelString = labelStringIn;
	value = valueIn; 
    }

    public void setValue( double valueIn ){
	value = valueIn; 
    }

    public double getValue(){
        return value;
    }

    public double getPanelOnGUI(){
        return value;
    }
   

    public Label ConstructLabelOnGUI () {
        //p controlPanel.add( new Label( "Initial Temp (K): ", Label.LEFT ) );
        Label label = new Label( labelString, Label.LEFT );
        return label;
    }

    public Panel ConstructInputOnGUI ( int TextFieldWidth, Font fontInput ) {

	panelWithInput = new Panel();
        panelWithInput.setLayout( new FlowLayout(FlowLayout.LEFT, 4, 4) );
        //
        String ParamString = new String() ;
	ParamString = String.valueOf( value ) ;    //value=dTemp_0      
        inputField = new TextField( ParamString, TextFieldWidth ); // TextFieldWidth=6
        inputField.setFont( fontInput );
        //
        panelWithInput.add( inputField );
        //p controlPanel.add( panelWithInput ); 
        return panelWithInput;
    }

    /*
    public double getValueFromGUI () {
	String stringTotal, stringTrimmed ;
        //double doubleHelp;

    	stringTotal = inputField.getText();
	stringTrimmed = stringTotal.trim();
	// try{
             return Double.valueOf( stringTrimmed ).doubleValue();
	// }
        // return doubleHelp;          
	}      
    */

    public void updateValueFromGUI ( ErrorHandle errorHandle ) {
	String stringTotal, stringTrimmed ;
        //double doubleHelp;
	//        String messageString = inputMessageString;

    	stringTotal = inputField.getText();
	stringTrimmed = stringTotal.trim();
	try{
             value = Double.valueOf( stringTrimmed ).doubleValue();
	}
        catch ( NumberFormatException nfException ) {
            String ParamString = new String() ;
	    ParamString = String.valueOf( value ) ;    
            inputField.setText( ParamString );
            // throw nfException;
            // messageString = "Invalid input format in field  \"" + labelString + "\""; 
	    errorHandle.setMessageString("Invalid input format in field  \"" 
                   + labelString + "\"" );
        };
	//        return messageString; 

    }      

}