Java by API/javax.swing/BoundedRangeModel

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BoundedRangeModel: addChangeListener(ChangeListener x)

   <source lang="java">

import java.awt.BorderLayout; import javax.swing.BoundedRangeModel; import javax.swing.JFrame; import javax.swing.JProgressBar; import javax.swing.JScrollBar; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass {

 public static void main(String args[]) throws Exception {
   ChangeListener changeListener = new BoundedChangeListener();
   JScrollBar anotherJScrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
   BoundedRangeModel model = anotherJScrollBar.getModel();
   model.addChangeListener(changeListener);
   JFrame frame = new JFrame("ScrollBars R Us");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.add(anotherJScrollBar, BorderLayout.NORTH);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

} class BoundedChangeListener implements ChangeListener {

 public void stateChanged(ChangeEvent changeEvent) {
   Object source = changeEvent.getSource();
   if (source instanceof BoundedRangeModel) {
     BoundedRangeModel aModel = (BoundedRangeModel) source;
     if (!aModel.getValueIsAdjusting()) {
       System.out.println("Changed: " + aModel.getValue());
     }
   } else if (source instanceof JSlider) {
     JSlider theJSlider = (JSlider) source;
     if (!theJSlider.getValueIsAdjusting()) {
       System.out.println("Slider changed: " + theJSlider.getValue());
     }
   } else if (source instanceof JProgressBar) {
     JProgressBar theJProgressBar = (JProgressBar) source;
     System.out.println("ProgressBar changed: " + theJProgressBar.getValue());
   } else {
     System.out.println("Something changed: " + source);
   }
 }

}

      </source>
   
  
 
  



BoundedRangeModel: getExtent()

   <source lang="java">

import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.BoundedRangeModel; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; public class MainClass {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("Offset Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JPanel panel = new JPanel(new BorderLayout());
   final JTextField textField = new JTextField();
   panel.add(textField, BorderLayout.CENTER);
   frame.add(panel, 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 model = textField.getHorizontalVisibility();
       int extent = model.getExtent();
       textField.setScrollOffset(extent);
     }
   };
   button.addActionListener(actionListener);
   frame.add(button, BorderLayout.SOUTH);
   frame.setSize(250, 150);
   frame.setVisible(true);
 }

}


      </source>
   
  
 
  



BoundedRangeModel: getValue()

   <source lang="java">

import java.awt.BorderLayout; import javax.swing.BoundedRangeModel; import javax.swing.JFrame; import javax.swing.JProgressBar; import javax.swing.JScrollBar; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass {

 public static void main(String args[]) throws Exception {
   ChangeListener changeListener = new BoundedChangeListener();
   JScrollBar anotherJScrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
   BoundedRangeModel model = anotherJScrollBar.getModel();
   model.addChangeListener(changeListener);
   JFrame frame = new JFrame("ScrollBars R Us");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.add(anotherJScrollBar, BorderLayout.NORTH);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

} class BoundedChangeListener implements ChangeListener {

 public void stateChanged(ChangeEvent changeEvent) {
   Object source = changeEvent.getSource();
   if (source instanceof BoundedRangeModel) {
     BoundedRangeModel aModel = (BoundedRangeModel) source;
     if (!aModel.getValueIsAdjusting()) {
       System.out.println("Changed: " + aModel.getValue());
     }
   } else if (source instanceof JSlider) {
     JSlider theJSlider = (JSlider) source;
     if (!theJSlider.getValueIsAdjusting()) {
       System.out.println("Slider changed: " + theJSlider.getValue());
     }
   } else if (source instanceof JProgressBar) {
     JProgressBar theJProgressBar = (JProgressBar) source;
     System.out.println("ProgressBar changed: " + theJProgressBar.getValue());
   } else {
     System.out.println("Something changed: " + source);
   }
 }

}

      </source>