- /*
- * @(#)JSeparator.java 1.35 01/11/29
- *
- * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package javax.swing;
-
- import javax.swing.plaf.*;
- import javax.accessibility.*;
-
- import java.io.ObjectOutputStream;
- import java.io.ObjectInputStream;
- import java.io.IOException;
-
-
- /**
- * An implementation of a Menu Separator -- a divider between menu items
- * that breaks them up into logical groupings.
- * <p>
- * <strong>Warning:</strong>
- * Serialized objects of this class will not be compatible with
- * future Swing releases. The current serialization support is appropriate
- * for short term storage or RMI between applications running the same
- * version of Swing. A future release of Swing will provide support for
- * long term persistence.
- *
- * @beaninfo
- * attribute: isContainer false
- * @version 1.35 11/29/01
- * @author Georges Saab
- * @author Jeff Shapiro
- */
- public class JSeparator extends JComponent implements SwingConstants, Accessible
- {
- /**
- * @see #getUIClassID
- * @see #readObject
- */
- private static final String uiClassID = "SeparatorUI";
-
- private int orientation = HORIZONTAL;
-
- /** Create a new horizontal separator. */
- public JSeparator()
- {
- this( HORIZONTAL );
- }
-
- /**
- * Create a new separator with the specified horizontal or
- * vertical orientation.
- *
- * @param orientation an int specifying SwingConstants.HORIZONTAL or
- * SwingConstants.VERTICAL
- */
- public JSeparator( int orientation )
- {
- checkOrientation( orientation );
- this.orientation = orientation;
-
- updateUI();
- }
-
- /**
- * Returns the L&F object that renders this component.
- *
- * @return the SeparatorUI object that renders this component
- */
- public SeparatorUI getUI() {
- return (SeparatorUI)ui;
- }
-
- /**
- * Sets the L&F object that renders this component.
- *
- * @param ui the SeparatorUI L&F object
- * @see UIDefaults#getUI
- * @beaninfo
- * description: The menu item's UI delegate
- * bound: true
- * expert: true
- * hidden: true
- */
- public void setUI(SeparatorUI ui) {
- super.setUI(ui);
- }
-
- /**
- * Notification from the UIFactory that the L&F has changed.
- * Called to replace the UI with the latest version from the
- * UIFactory.
- *
- * @see JComponent#updateUI
- */
- public void updateUI() {
- setUI((SeparatorUI)UIManager.getUI(this));
- }
-
-
- /**
- * Returns the name of the L&F class that renders this component.
- *
- * @return "SeparatorUI"
- * @see JComponent#getUIClassID
- * @see UIDefaults#getUI
- */
- public String getUIClassID() {
- return uiClassID;
- }
-
-
- /**
- * See readObject() and writeObject() in JComponent for more
- * information about serialization in Swing.
- */
- private void writeObject(ObjectOutputStream s) throws IOException {
- s.defaultWriteObject();
- if ((ui != null) && (getUIClassID().equals(uiClassID))) {
- ui.installUI(this);
- }
- }
-
- /**
- * Returns the orientation of this separator.
- *
- * @return The value of the orientation property, one of the
- * following constants defined in <code>SwingConstants</code>:
- * <code>VERTICAL</code>, or
- * <code>HORIZONTAL</code>.
- *
- * @see SwingConstants
- * @see #setOrientation
- */
- public int getOrientation() {
- return this.orientation;
- }
-
- /**
- * Sets the orientation of the separator.
- * The default value of this property is HORIZONTAL.
- *
- * @see SwingConstants
- * @see #getOrientation
- * @beaninfo
- * bound: true
- * preferred: true
- * enum: HORIZONTAL SwingConstants.HORIZONTAL
- * VERTICAL SwingConstants.VERTICAL
- * attribute: visualUpdate true
- * description: The orientation of the separator.
- */
- public void setOrientation( int orientation ) {
- if (this.orientation == orientation) {
- return;
- }
- int oldValue = this.orientation;
- checkOrientation( orientation );
- this.orientation = orientation;
- firePropertyChange("orientation", oldValue, orientation);
- revalidate();
- repaint();
- }
-
- private void checkOrientation( int orientation )
- {
- switch ( orientation )
- {
- case VERTICAL:
- case HORIZONTAL:
- break;
- default:
- throw new IllegalArgumentException( "orientation must be one of: VERTICAL, HORIZONTAL" );
- }
- }
-
-
- /**
- * Returns a string representation of this JSeparator. This method
- * is intended to be used only for debugging purposes, and the
- * content and format of the returned string may vary between
- * implementations. The returned string may be empty but may not
- * be <code>null</code>.
- *
- * @return a string representation of this JSeparator.
- */
- protected String paramString() {
- String orientationString = (orientation == HORIZONTAL ?
- "HORIZONTAL" : "VERTICAL");
-
- return super.paramString() +
- ",orientation=" + orientationString;
- }
-
- /**
- * Identifies whether or not this component can receive the focus.
- * JSeparators cannot recieve focus.
- *
- * @return false
- */
- public boolean isFocusTraversable()
- {
- return false;
- }
-
-
- /////////////////
- // Accessibility support
- ////////////////
-
- /**
- * Get the AccessibleContext associated with this JComponent
- *
- * @return the AccessibleContext of this JComponent
- */
- public AccessibleContext getAccessibleContext() {
- if (accessibleContext == null) {
- accessibleContext = new AccessibleJSeparator();
- }
- return accessibleContext;
- }
-
- /**
- * The class used to obtain the accessible role for this object.
- * <p>
- * <strong>Warning:</strong>
- * Serialized objects of this class will not be compatible with
- * future Swing releases. The current serialization support is appropriate
- * for short term storage or RMI between applications running the same
- * version of Swing. A future release of Swing will provide support for
- * long term persistence.
- */
- protected class AccessibleJSeparator extends AccessibleJComponent {
-
- /**
- * Get the role of this object.
- *
- * @return an instance of AccessibleRole describing the role of the
- * object
- */
- public AccessibleRole getAccessibleRole() {
- return AccessibleRole.SEPARATOR;
- }
- }
- }