How to use BoundedRangeModel interface?

[archer]

Hello Friends,

I need you help to solve my query which is related to the inbuilt classes of advanced java programming. I am totally confused about the use of BoundedRangeModel interface. I an not getting how to use methods of BoundedRangeModel interface of java. If anyone posse good knowledge about the BoundedRangeModel interface, then please let me know that. I will really appreciate your any help over BoundedRangeModel interface.

[opaper]

A BoundedRangeModel interface defines the data model used by components like Sliders and ProgressBars. Defines four interrelated integer properties: minimum, maximum, extent and value. The outer range is minimum,maximum and the inner range is value,value+extent. The inner range must lie within the outer one, i.e. value must be less than or equal to maximum and value+extent must greater than or equal to minimum, and maximum must be greater than or equal to minimum. There are a few features of this model that one might find a little surprising.

[MindSpace]

Hi friend,

If you want to know about the use of BoundedRangeModel interface, then refer following java example:

import javax.swing.BoundedRangeModel;
import javax.swing.JButton;

public class BoundedRangeModelDM {

  public static void main(final String arhgs[]) {
    JFrame af = new JFrame("Offset Example");
    af.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel pn = new JPanel(new BorderLayout());
    final JTextField textField = new JTextField();
    pn.add(textField, BorderLayout.CENTER);
    af.add(pn, BorderLayout.NORTH);
    JButton button = new JButton("Get Offset");
    ActionListener actionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        System.out.println("Offset: " + textField.getScrollOffset());
        System.out.println("Visibility: " + textField.getHorizontalVisibility());
        BoundedRangeModel model1 = textField.getHorizontalVisibility();
        int extent1 = model1.getExtent();
        textField.setScrollOffset(extent1);
      }
    };
    button.addActionListener(actionListener);
    af.add(button, BorderLayout.SOUTH);
    af.setSize(200, 150);
    af.setVisible(true);
  }
}

[Modifier]

Before using properties of BoundedRangeModel interface, you need to be aware about following it's methods:

• setValueIsAdjusting(boolean bl)
• setValue(int newValue)
• setRangeProperties(int val, int extnt, int min, int max, boolean bl)
• setMinimum(int Min)
• removeChangeListener(ChangeListener chls)
• addChangeListener(ChangeListener chls)

[Praetor]

Hi,

I hope following java code will help you to know about the BoundedRangeModel interface:

import javax.swing.BoundedRangeModel;
import javax.swing.event.ChangeListener;

public class BRM extends JFrame 
{
  public BRM() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JSlider slr = new JSlider();
    BoundedRangeModel mdl = slr.getModel();
    mdl.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent e) {
        BoundedRangeModel m1 = (BoundedRangeModel) e.getSource();
        System.out.println("Slider position changed to " + m1.getValue());
      }
    });
    getContentPane().add(slr);
    pack();
  }

  public static void main(String[] args) {
    Main m1 = new Main();
    m1.setVisible(true);
  }
}

[Katty]

The setMaximum(int newMaximum) is one of the important method of BoundedRangeModel interface. This method is very useful to accommodate new values to the properties. A BoundedRangeModel interface is nothing but the implementation of class from 'DefaultBoundedRangeModel' class. The interface type of 'BoundedRangeModel interface' is of 'public'.