package slider;

import javax.swing.*;
import java.awt.event.*;
import slider.*;

// This view registers the window with the model and delegates change
// notification calls from the model to the slider view. At the end of
// Olsen, Chapter 6, different techniques for determining when to save the
// model are discussed. This technique
// of registering the window with the model illustrates how the second
// technique for saving the model can be implemented.
public class SliderGraphicalView extends JFrame implements SliderView {
    // Declare instance variables
    SliderModel model;
    Slider slider;                                   
    // Define constructor
    public SliderGraphicalView(SliderModel m) {
	super("Slider Application");
	model = m;
	model.addObserver(this);

	slider = new Slider(model);                             
	// all components should be added to the content pane
	getContentPane().add("Center", slider);             

	// setDefaultCloseOperation tells Java what to do when the close button
	// in the main window is pressed
	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   

	// calculate the size of the frame and layout its subcomponents
	pack();

	// display the frame
	setVisible(true); 
    } 
    public void valueChanged(int oldValue) {
	slider.valueChanged(oldValue);
    }
    public void titleChanged(String oldTitle) {
	slider.titleChanged(oldTitle);
    }
}