/* * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package javax.swing;import javax.swing.plaf.*;import javax.accessibility.*;import java.io.ObjectOutputStream;import java.io.ObjectInputStream;import java.io.IOException;/** * <code>JSeparator</code> provides a general purpose component for * implementing divider lines - most commonly used as a divider * between menu items that breaks them up into logical groupings. * Instead of using <code>JSeparator</code> directly, * you can use the <code>JMenu</code> or <code>JPopupMenu</code> * <code>addSeparator</code> method to create and add a separator. * <code>JSeparator</code>s may also be used elsewhere in a GUI * wherever a visual divider is useful. * * <p> * * For more information and examples see * <a href="http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html">How to Use Menus</a>, * a section in <em>The Java Tutorial.</em> * <p> * <strong>Warning:</strong> Swing is not thread safe. For more * information see <a * href="package-summary.html#threading">Swing's Threading * Policy</a>. * <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. As of 1.4, support for long term storage * of all JavaBeans<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @beaninfo * attribute: isContainer false * description: A divider between menu items. * * @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; /** Creates a new horizontal separator. */ public JSeparator() { this( HORIZONTAL ); } /** * Creates a new separator with the specified horizontal or * vertical orientation. * * @param orientation an integer specifying * <code>SwingConstants.HORIZONTAL</code> or * <code>SwingConstants.VERTICAL</code> * @exception IllegalArgumentException if <code>orientation</code> * is neither <code>SwingConstants.HORIZONTAL</code> nor * <code>SwingConstants.VERTICAL</code> */ public JSeparator( int orientation ) { checkOrientation( orientation ); this.orientation = orientation; setFocusable(false); 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 * bound: true * hidden: true * attribute: visualUpdate true * description: The UI object that implements the Component's LookAndFeel. */ public void setUI(SeparatorUI ui) { super.setUI(ui); } /** * Resets the UI property to a value from the current look and feel. * * @see JComponent#updateUI */ public void updateUI() { setUI((SeparatorUI)UIManager.getUI(this)); } /** * Returns the name of the L&F class that renders this component. * * @return the string "SeparatorUI" * @see JComponent#getUIClassID * @see UIDefaults#getUI */ public String getUIClassID() { return uiClassID; } /** * See <code>readObject</code> and <code>writeObject</code> in * <code>JComponent</code> for more * information about serialization in Swing. */ private void writeObject(ObjectOutputStream s) throws IOException { s.defaultWriteObject(); if (getUIClassID().equals(uiClassID)) { byte count = JComponent.getWriteObjCounter(this); JComponent.setWriteObjCounter(this, --count); if (count == 0 && ui != null) { 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. * @param orientation either <code>SwingConstants.HORIZONTAL</code> * or <code>SwingConstants.VERTICAL</code> * @exception IllegalArgumentException if <code>orientation</code> * is neither <code>SwingConstants.HORIZONTAL</code> * nor <code>SwingConstants.VERTICAL</code> * * @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 <code>JSeparator</code>. * 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 <code>JSeparator</code> */ protected String paramString() { String orientationString = (orientation == HORIZONTAL ? "HORIZONTAL" : "VERTICAL"); return super.paramString() + ",orientation=" + orientationString; }/////////////////// Accessibility support//////////////// /** * Gets the AccessibleContext associated with this JSeparator. * For separators, the AccessibleContext takes the form of an * AccessibleJSeparator. * A new AccessibleJSeparator instance is created if necessary. * * @return an AccessibleJSeparator that serves as the * AccessibleContext of this JSeparator */ public AccessibleContext getAccessibleContext() { if (accessibleContext == null) { accessibleContext = new AccessibleJSeparator(); } return accessibleContext; } /** * This class implements accessibility support for the * <code>JSeparator</code> class. It provides an implementation of the * Java Accessibility API appropriate to separator user-interface elements. * <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. As of 1.4, support for long term storage * of all JavaBeans<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. */ 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; } }}
/*
* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing;
import javax.swing.plaf.*;
import javax.accessibility.*;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.io.IOException;
/**
* <code>JSeparator</code> provides a general purpose component for
* implementing divider lines - most commonly used as a divider
* between menu items that breaks them up into logical groupings.
* Instead of using <code>JSeparator</code> directly,
* you can use the <code>JMenu</code> or <code>JPopupMenu</code>
* <code>addSeparator</code> method to create and add a separator.
* <code>JSeparator</code>s may also be used elsewhere in a GUI
* wherever a visual divider is useful.
*
* <p>
*
* For more information and examples see
* <a
href="http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html">How to Use Menus</a>,
* a section in <em>The Java Tutorial.</em>
* <p>
* <strong>Warning:</strong> Swing is not thread safe. For more
* information see <a
* href="package-summary.html#threading">Swing's Threading
* Policy</a>.
* <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. As of 1.4, support for long term storage
* of all JavaBeans<sup><font size="-2">TM</font></sup>
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*
* @beaninfo
* attribute: isContainer false
* description: A divider between menu items.
*
* @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;
/** Creates a new horizontal separator. */
public JSeparator()
{
this( HORIZONTAL );
}
/**
* Creates a new separator with the specified horizontal or
* vertical orientation.
*
* @param orientation an integer specifying
* <code>SwingConstants.HORIZONTAL</code> or
* <code>SwingConstants.VERTICAL</code>
* @exception IllegalArgumentException if <code>orientation</code>
* is neither <code>SwingConstants.HORIZONTAL</code> nor
* <code>SwingConstants.VERTICAL</code>
*/
public JSeparator( int orientation )
{
checkOrientation( orientation );
this.orientation = orientation;
setFocusable(false);
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
* bound: true
* hidden: true
* attribute: visualUpdate true
* description: The UI object that implements the Component's LookAndFeel.
*/
public void setUI(SeparatorUI ui) {
super.setUI(ui);
}
/**
* Resets the UI property to a value from the current look and feel.
*
* @see JComponent#updateUI
*/
public void updateUI() {
setUI((SeparatorUI)UIManager.getUI(this));
}
/**
* Returns the name of the L&F class that renders this component.
*
* @return the string "SeparatorUI"
* @see JComponent#getUIClassID
* @see UIDefaults#getUI
*/
public String getUIClassID() {
return uiClassID;
}
/**
* See <code>readObject</code> and <code>writeObject</code> in
* <code>JComponent</code> for more
* information about serialization in Swing.
*/
private void writeObject(ObjectOutputStream s) throws IOException {
s.defaultWriteObject();
if (getUIClassID().equals(uiClassID)) {
byte count = JComponent.getWriteObjCounter(this);
JComponent.setWriteObjCounter(this, --count);
if (count == 0 && ui != null) {
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.
* @param orientation either <code>SwingConstants.HORIZONTAL</code>
* or <code>SwingConstants.VERTICAL</code>
* @exception IllegalArgumentException if <code>orientation</code>
* is neither <code>SwingConstants.HORIZONTAL</code>
* nor <code>SwingConstants.VERTICAL</code>
*
* @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 <code>JSeparator</code>.
* 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 <code>JSeparator</code>
*/
protected String paramString() {
String orientationString = (orientation == HORIZONTAL ?
"HORIZONTAL" : "VERTICAL");
return super.paramString() +
",orientation=" + orientationString;
}
/////////////////
// Accessibility support
////////////////
/**
* Gets the AccessibleContext associated with this JSeparator.
* For separators, the AccessibleContext takes the form of an
* AccessibleJSeparator.
* A new AccessibleJSeparator instance is created if necessary.
*
* @return an AccessibleJSeparator that serves as the
* AccessibleContext of this JSeparator
*/
public AccessibleContext getAccessibleContext() {
if (accessibleContext == null) {
accessibleContext = new AccessibleJSeparator();
}
return accessibleContext;
}
/**
* This class implements accessibility support for the
* <code>JSeparator</code> class. It provides an implementation of the
* Java Accessibility API appropriate to separator user-interface elements.
* <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. As of 1.4, support for long term storage
* of all JavaBeans<sup><font size="-2">TM</font></sup>
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*/
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;
}
}
}