import java.awt.*;

// import java.io.*;


class ParameterBoolean{

    private boolean value;

    // Small panel for the GUI containing Label and 2 checkboxes (yes/no):
    private Panel panelWithInput;
    private String labelString;
    CheckboxGroup checkboxGroup;
    private Checkbox checkboxYes;
    private Checkbox checkboxNo;

    ParameterBoolean(){
        labelString = new String();
	value = false; 
    }

    ParameterBoolean( String labelStringIn, boolean valueIn ){
        labelString = new String();
        labelString = labelStringIn;
	value = valueIn; 
    }

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

    public boolean getValue(){
        return value;
    }

    public boolean getPanelOnGUI(){
        return value;
    }
   

    public Label ConstructLabelOnGUI () {
        Label label = new Label( labelString, Label.LEFT );
        return label;
    }


    public Panel ConstructInputOnGUI ( String textYes, String textNo ) {
	panelWithInput = new Panel();
        panelWithInput.setLayout( new FlowLayout(FlowLayout.LEFT, 4, 4) );
        //
        checkboxGroup = new CheckboxGroup();         
        checkboxYes  = new Checkbox( textYes,  value,  checkboxGroup);
        checkboxNo   = new Checkbox( textNo,  !value, checkboxGroup);
        //
        panelWithInput.add( checkboxYes );
        panelWithInput.add( checkboxNo );
        return panelWithInput;
    }


    public void updateValueFromGUI ( ErrorHandle errorHandle ) {
        value = checkboxYes.getState();
	}      

}