A simple "label : slider : value label" combination.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@802 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/swing/SimpleSlider.java

@@ -0,0 +1,90 @@
+//
+// $Id: SimpleSlider.java,v 1.1 2002/07/25 23:21:33 mdb Exp $
+
+package com.samskivert.swing;
+
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JSlider;
+
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+/**
+ * Displays a slider with a label on the left explaining what the slider
+ * does and a label on the right displaying the slider's current value.
+ */
+public class SimpleSlider extends JPanel
+    implements ChangeListener
+{
+    /**
+     * Creates a simple slider with the specified configuration.
+     *
+     * @param label the text to display to the left of the slider.
+     * @param min the slider's minimium value.
+     * @param max the slider's maximum value.
+     * @param value the slider's starting value.
+     */
+    public SimpleSlider (String label, int min, int max, int value)
+    {
+        setLayout(new HGroupLayout(HGroupLayout.STRETCH));
+        add(_label = new JLabel(label), HGroupLayout.FIXED);
+        add(_slider = new JSlider(min, max, value));
+        _slider.addChangeListener(this);
+        add(_value = new JLabel(Integer.toString(min)), HGroupLayout.FIXED);
+    }
+
+    // documentation inherited
+    public void stateChanged (ChangeEvent e)
+    {
+        JSlider source = (JSlider)e.getSource();
+        if (!source.getValueIsAdjusting()) {
+            _value.setText(Integer.toString(source.getValue()));
+        }
+    }
+
+    /**
+     * Updates the label displayed to the left of the slider.
+     */
+    public void setLabel (String label)
+    {
+        _label.setText(label);
+    }
+
+    /**
+     * Returns the current value of the slider.
+     */
+    public int getValue ()
+    {
+        return _slider.getValue();
+    }
+
+    /**
+     * Sets the slider's current value.
+     */
+    public void setValue (int value)
+    {
+        _slider.setValue(value);
+        _value.setText(Integer.toString(value));
+    }
+
+    /**
+     * Sets the slider's minimum value.
+     */
+    public void setMinimum (int minimum)
+    {
+        _slider.setMinimum(minimum);
+    }
+
+    /**
+     * Sets the slider's maximum value.
+     */
+    public void setMaximum (int maximum)
+    {
+        _slider.setMaximum(maximum);
+    }
+
+    protected JLabel _label;
+    protected JSlider _slider;
+    protected JLabel _value;
+}