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Diffstat (limited to 'libjava/classpath/java/awt/List.java')
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diff --git a/libjava/classpath/java/awt/List.java b/libjava/classpath/java/awt/List.java new file mode 100644 index 000000000..dc1199bbc --- /dev/null +++ b/libjava/classpath/java/awt/List.java @@ -0,0 +1,1222 @@ +/* List.java -- A listbox widget + Copyright (C) 1999, 2002, 2004, 2006, Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.awt; + +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; +import java.awt.event.ItemEvent; +import java.awt.event.ItemListener; +import java.awt.peer.ListPeer; +import java.util.EventListener; +import java.util.Vector; + +import javax.accessibility.Accessible; +import javax.accessibility.AccessibleContext; +import javax.accessibility.AccessibleRole; +import javax.accessibility.AccessibleSelection; +import javax.accessibility.AccessibleState; +import javax.accessibility.AccessibleStateSet; + +/** + * Class that implements a listbox widget + * + * @author Aaron M. Renn (arenn@urbanophile.com) + */ +public class List extends Component + implements ItemSelectable, Accessible +{ + + /** + * The number used to generate the name returned by getName. + */ + private static transient long next_list_number; + + // Serialization constant + private static final long serialVersionUID = -3304312411574666869L; + + // FIXME: Need read/writeObject + + /** + * @serial The items in the list. + */ + private Vector items = new Vector(); + + /** + * @serial Indicates whether or not multiple items can be selected + * simultaneously. + */ + private boolean multipleMode; + + /** + * @serial The number of rows in the list. This is set on creation + * only and cannot be modified. + */ + private int rows; + + /** + * @serial An array of the item indices that are selected. + */ + private int[] selected; + + /** + * @serial An index value used by <code>makeVisible()</code> and + * <code>getVisibleIndex</code>. + */ + private int visibleIndex = -1; + + // The list of ItemListeners for this object. + private ItemListener item_listeners; + + // The list of ActionListeners for this object. + private ActionListener action_listeners; + + /** + * Initializes a new instance of <code>List</code> with no visible lines + * and multi-select disabled. + * + * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true. + * @since 1.1 + */ + public List() + { + this(4, false); + } + + /** + * Initializes a new instance of <code>List</code> with the specified + * number of visible lines and multi-select disabled. + * + * @param rows The number of visible rows in the list. + * + * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true. + */ + public List(int rows) + { + this(rows, false); + } + + /** + * Initializes a new instance of <code>List</code> with the specified + * number of lines and the specified multi-select setting. + * + * @param rows The number of visible rows in the list. + * @param multipleMode <code>true</code> if multiple lines can be selected + * simultaneously, <code>false</code> otherwise. + * + * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true. + */ + public List(int rows, boolean multipleMode) + { + if (rows == 0) + this.rows = 4; + else + this.rows = rows; + + this.multipleMode = multipleMode; + selected = new int[0]; + + if (GraphicsEnvironment.isHeadless()) + throw new HeadlessException(); + + } + + /** + * Returns the number of items in this list. + * + * @return The number of items in this list. + * + * @since 1.1 + */ + public int getItemCount() + { + return countItems(); + } + + /** + * Returns the number of items in this list. + * + * @return The number of items in this list. + * + * @deprecated This method is deprecated in favor of + * <code>getItemCount()</code> + */ + public int countItems() + { + return items.size(); + } + + /** + * Returns the complete list of items. + * + * @return The complete list of items in the list. + * + * @since 1.1 + */ + public synchronized String[] getItems() + { + String[] l_items = new String[getItemCount()]; + + items.copyInto(l_items); + return(l_items); + } + + /** + * Returns the item at the specified index. + * + * @param index The index of the item to retrieve. + * + * @exception IndexOutOfBoundsException If the index value is not valid. + */ + public String getItem(int index) + { + return((String) items.elementAt(index)); + } + + /** + * Returns the number of visible rows in the list. + * + * @return The number of visible rows in the list. + */ + public int getRows() + { + return(rows); + } + + /** + * Tests whether or not multi-select mode is enabled. + * + * @return <code>true</code> if multi-select mode is enabled, + * <code>false</code> otherwise. + * + * @since 1.1 + */ + public boolean isMultipleMode() + { + return allowsMultipleSelections (); + } + + /** + * Tests whether or not multi-select mode is enabled. + * + * @return <code>true</code> if multi-select mode is enabled, + * <code>false</code> otherwise. + * + * @deprecated This method is deprecated in favor of + * <code>isMultipleMode()</code>. + */ + public boolean allowsMultipleSelections() + { + return multipleMode; + } + + /** + * This method enables or disables multiple selection mode for this + * list. + * + * @param multipleMode <code>true</code> to enable multiple mode, + * <code>false</code> otherwise. + * + * @since 1.1 + */ + public void setMultipleMode(boolean multipleMode) + { + setMultipleSelections (multipleMode); + } + + /** + * This method enables or disables multiple selection mode for this + * list. + * + * @param multipleMode <code>true</code> to enable multiple mode, + * <code>false</code> otherwise. + * + * @deprecated + */ + public void setMultipleSelections(boolean multipleMode) + { + this.multipleMode = multipleMode; + + ListPeer peer = (ListPeer) getPeer(); + if (peer != null) + peer.setMultipleMode(multipleMode); + + } + + /** + * Returns the minimum size of this component. + * + * @return The minimum size of this component. + * + * @since 1.1 + */ + public Dimension getMinimumSize() + { + return getMinimumSize(getRows()); + } + + /** + * Returns the minimum size of this component. + * + * @return The minimum size of this component. + * + * @deprecated This method is deprecated in favor of + * <code>getMinimumSize</code>. + */ + public Dimension minimumSize() + { + return minimumSize(getRows()); + } + + /** + * Returns the minimum size of this component assuming it had the specified + * number of rows. + * + * @param rows The number of rows to size for. + * + * @return The minimum size of this component. + * + * @since 1.1 + */ + public Dimension getMinimumSize(int rows) + { + return minimumSize(rows); + } + + /** + * Returns the minimum size of this component assuming it had the specified + * number of rows. + * + * @param rows The number of rows to size for. + * + * @return The minimum size of this component. + * + * @deprecated This method is deprecated in favor of + * <code>getMinimumSize(int)</code>> + */ + public Dimension minimumSize(int rows) + { + ListPeer peer = (ListPeer) getPeer(); + if (peer != null) + return peer.minimumSize(rows); + else + return new Dimension(0, 0); + } + + /** + * Returns the preferred size of this component. + * + * @return The preferred size of this component. + * + * @since 1.1 + */ + public Dimension getPreferredSize() + { + return getPreferredSize(getRows()); + } + + /** + * Returns the preferred size of this component. + * + * @return The preferred size of this component. + * + * @deprecated This method is deprecated in favor of + * <code>getPreferredSize</code>. + */ + public Dimension preferredSize() + { + return preferredSize(getRows()); + } + + /** + * Returns the preferred size of this component assuming it had the specified + * number of rows. + * + * @param rows The number of rows to size for. + * + * @return The preferred size of this component. + * + * @since 1.1 + */ + public Dimension getPreferredSize(int rows) + { + return preferredSize(rows); + } + + /** + * Returns the preferred size of this component assuming it had the specified + * number of rows. + * + * @param rows The number of rows to size for. + * + * @return The preferred size of this component. + * + * @deprecated This method is deprecated in favor of + * <code>getPreferredSize(int)</code>> + */ + public Dimension preferredSize(int rows) + { + ListPeer peer = (ListPeer)getPeer(); + if (peer != null) + return peer.preferredSize(rows); + else + return getSize(); + } + + /** + * This method adds the specified item to the end of the list. + * + * @param item The item to add to the list. + * + * @since 1.1 + */ + public void add(String item) + { + add (item, -1); + } + + /** + * This method adds the specified item to the end of the list. + * + * @param item The item to add to the list. + * + * @deprecated Use add() instead. + */ + public void addItem(String item) + { + addItem(item, -1); + } + + /** + * Adds the specified item to the specified location in the list. + * If the desired index is -1 or greater than the number of rows + * in the list, then the item is added to the end. + * + * @param item The item to add to the list. + * @param index The location in the list to add the item, or -1 to add + * to the end. + * + * @since 1.1 + */ + public void add(String item, int index) + { + addItem(item, index); + } + + /** + * Adds the specified item to the specified location in the list. + * If the desired index is -1 or greater than the number of rows + * in the list, then the item is added to the end. + * + * @param item The item to add to the list. + * @param index The location in the list to add the item, or -1 to add + * to the end. + * + * @deprecated Use add() instead. + */ + public void addItem(String item, int index) + { + if (item == null) + item = ""; + + if (index < -1) + index = -1; + + if ((index == -1) || (index >= items.size ())) + items.addElement (item); + else + items.insertElementAt(item, index); + + ListPeer peer = (ListPeer) getPeer(); + if (peer != null) + peer.add (item, index); + } + + /** + * Deletes the item at the specified index. + * + * @param index The index of the item to delete. + * + * @exception IllegalArgumentException If the index is not valid + * + * @deprecated + */ + public void delItem(int index) throws IllegalArgumentException + { + boolean selected = false; + if (isSelected(index)) + { + selected = true; + deselect(index); + } + + items.removeElementAt (index); + + if (selected) + select(index); + + ListPeer peer = (ListPeer) getPeer(); + if (peer != null) + peer.delItems (index, index); + } + + /** + * Deletes the item at the specified index. + * + * @param index The index of the item to delete. + * + * @exception IllegalArgumentException If the index is not valid + * + * @since 1.1 + */ + public void remove(int index) throws IllegalArgumentException + { + delItem(index); + } + + /** + * Deletes all items in the specified index range. + * + * @param start The beginning index of the range to delete. + * @param end The ending index of the range to delete. + * + * @exception IllegalArgumentException If the indexes are not valid + * + * @deprecated This method is deprecated for some unknown reason. + */ + public synchronized void delItems(int start, int end) + throws IllegalArgumentException + { + // We must run the loop in reverse direction. + for (int i = end; i >= start; --i) + items.removeElementAt (i); + if (peer != null) + { + ListPeer l = (ListPeer) peer; + l.delItems (start, end); + } + } + + /** + * Deletes the first occurrence of the specified item from the list. + * + * @param item The item to delete. + * + * @exception IllegalArgumentException If the specified item does not exist. + * + * @since 1.1 + */ + public synchronized void remove(String item) throws IllegalArgumentException + { + int index = items.indexOf(item); + if (index == -1) + throw new IllegalArgumentException("List element to delete not found"); + + remove(index); + } + + /** + * Deletes all of the items from the list. + * + * @since 1.1 + */ + public synchronized void removeAll() + { + clear(); + } + + /** + * Deletes all of the items from the list. + * + * @deprecated This method is deprecated in favor of <code>removeAll()</code>. + */ + public void clear() + { + items.clear(); + + ListPeer peer = (ListPeer) getPeer(); + if (peer != null) + peer.removeAll(); + + selected = new int[0]; + } + + /** + * Replaces the item at the specified index with the specified item. + * + * @param item The new item value. + * @param index The index of the item to replace. + * + * @exception ArrayIndexOutOfBoundsException If the index is not valid. + */ + public synchronized void replaceItem(String item, int index) + throws ArrayIndexOutOfBoundsException + { + if ((index < 0) || (index >= items.size())) + throw new ArrayIndexOutOfBoundsException("Bad list index: " + index); + + items.insertElementAt(item, index + 1); + items.removeElementAt (index); + + if (peer != null) + { + ListPeer l = (ListPeer) peer; + + /* We add first and then remove so that the selected + item remains the same */ + l.add (item, index + 1); + l.delItems (index, index); + } + } + + /** + * Returns the index of the currently selected item. -1 will be returned + * if there are no selected rows or if there are multiple selected rows. + * + * @return The index of the selected row. + */ + public synchronized int getSelectedIndex() + { + if (peer != null) + { + ListPeer l = (ListPeer) peer; + selected = l.getSelectedIndexes (); + } + + if (selected == null || selected.length != 1) + return -1; + + return selected[0]; + } + + /** + * Returns an array containing the indexes of the rows that are + * currently selected. + * + * @return A list of indexes of selected rows. + */ + public synchronized int[] getSelectedIndexes() + { + if (peer != null) + { + ListPeer l = (ListPeer) peer; + selected = l.getSelectedIndexes(); + } + + return selected; + } + + /** + * Returns the item that is currently selected, or <code>null</code> if there + * is no item selected. FIXME: What happens if multiple items selected? + * + * @return The selected item, or <code>null</code> if there is no + * selected item. + */ + public synchronized String getSelectedItem() + { + int index = getSelectedIndex(); + if (index == -1) + return(null); + + return((String) items.elementAt(index)); + } + + /** + * Returns the list of items that are currently selected in this list. + * + * @return The list of currently selected items. + */ + public synchronized String[] getSelectedItems() + { + int[] indexes = getSelectedIndexes(); + if (indexes == null) + return(new String[0]); + + String[] retvals = new String[indexes.length]; + if (retvals.length > 0) + for (int i = 0 ; i < retvals.length; i++) + retvals[i] = (String)items.elementAt(indexes[i]); + + return(retvals); + } + + /** + * Returns the list of items that are currently selected in this list as + * an array of type <code>Object[]</code> instead of <code>String[]</code>. + * + * @return The list of currently selected items. + */ + public synchronized Object[] getSelectedObjects() + { + int[] indexes = getSelectedIndexes(); + if (indexes == null) + return(new Object[0]); + + Object[] retvals = new Object[indexes.length]; + if (retvals.length > 0) + for (int i = 0 ; i < retvals.length; i++) + retvals[i] = items.elementAt(indexes[i]); + + return(retvals); + } + + /** + * Tests whether or not the specified index is selected. + * + * @param index The index to test. + * + * @return <code>true</code> if the index is selected, <code>false</code> + * otherwise. + * + * @since 1.1 + */ + public boolean isIndexSelected(int index) + { + return isSelected(index); + } + + /** + * Tests whether or not the specified index is selected. + * + * @param index The index to test. + * + * @return <code>true</code> if the index is selected, <code>false</code> + * otherwise. + * + * @deprecated This method is deprecated in favor of + * <code>isIndexSelected(int)</code>. + */ + public boolean isSelected(int index) + { + int[] indexes = getSelectedIndexes(); + + for (int i = 0; i < indexes.length; i++) + if (indexes[i] == index) + return true; + + return false; + } + + /** + * This method ensures that the item at the specified index is visible. + * + * @param index The index of the item to be made visible. + */ + public synchronized void makeVisible(int index) + throws IllegalArgumentException + { + visibleIndex = index; + if (peer != null) + { + ListPeer l = (ListPeer) peer; + l.makeVisible (index); + } + } + + /** + * Returns the index of the last item that was made visible via the + * <code>makeVisible()</code> method. + * + * @return The index of the last item made visible via the + * <code>makeVisible()</code> method. + */ + public int getVisibleIndex() + { + return visibleIndex; + } + + /** + * Makes the item at the specified index selected. + * + * @param index The index of the item to select. + */ + public synchronized void select(int index) + { + ListPeer lp = (ListPeer) getPeer(); + if (lp != null) + lp.select(index); + + if (selected != null) + { + boolean found = false; + for (int i = 0; i < selected.length; i++) + { + if (selected[i] == index) + found = true; + } + if (! found) + { + if (! isMultipleMode()) + { + selected = new int[] { index }; + return; + } + int[] temp = new int[selected.length + 1]; + System.arraycopy(selected, 0, temp, 0, selected.length); + temp[selected.length] = index; + selected = temp; + } + } + else + { + selected = new int[1]; + selected[0] = index; + } + } + + /** + * Makes the item at the specified index not selected. + * + * @param index The index of the item to unselect. + */ + public synchronized void deselect(int index) + { + if (isSelected(index)) + { + ListPeer lp = (ListPeer)getPeer(); + if (lp != null) + lp.deselect(index); + + int[] temp = new int[selected.length - 1]; + for (int i = 0; i < temp.length; i++) + { + if (selected[i] != index) + temp[i] = selected[i]; + else + { + System.arraycopy(selected, i + 1, temp, i, + selected.length - i - 1); + break; + } + } + selected = temp; + } + } + + /** + * Notifies this object to create its native peer. + */ + public void addNotify() + { + if (peer == null) + peer = getToolkit ().createList(this); + super.addNotify (); + } + + /** + * Notifies this object to destroy its native peer. + */ + public void removeNotify() + { + super.removeNotify(); + } + + /** + * Adds the specified <code>ActionListener</code> to the list of + * registered listeners for this object. + * + * @param listener The listener to add. + * + * @since 1.1 + */ + public synchronized void addActionListener(ActionListener listener) + { + action_listeners = AWTEventMulticaster.add(action_listeners, listener); + } + + /** + * Removes the specified <code>ActionListener</code> from the list of + * registers listeners for this object. + * + * @param listener The listener to remove. + * + * @since 1.1 + */ + public synchronized void removeActionListener(ActionListener listener) + { + action_listeners = AWTEventMulticaster.remove(action_listeners, listener); + } + + /** + * Adds the specified <code>ItemListener</code> to the list of + * registered listeners for this object. + * + * @param listener The listener to add. + * + * @since 1.1 + */ + public synchronized void addItemListener(ItemListener listener) + { + item_listeners = AWTEventMulticaster.add(item_listeners, listener); + } + + /** + * Removes the specified <code>ItemListener</code> from the list of + * registers listeners for this object. + * + * @param listener The listener to remove. + * + * @since 1.1 + */ + public synchronized void removeItemListener(ItemListener listener) + { + item_listeners = AWTEventMulticaster.remove(item_listeners, listener); + } + + /** + * Processes the specified event for this object. If the event is an + * instance of <code>ActionEvent</code> then the + * <code>processActionEvent()</code> method is called. Similarly, if the + * even is an instance of <code>ItemEvent</code> then the + * <code>processItemEvent()</code> method is called. Otherwise the + * superclass method is called to process this event. + * + * @param event The event to process. + * + * @since 1.1 + */ + protected void processEvent(AWTEvent event) + { + if (event instanceof ActionEvent) + processActionEvent((ActionEvent)event); + else if (event instanceof ItemEvent) + processItemEvent((ItemEvent)event); + else + super.processEvent(event); + } + + /** + * This method processes the specified event by dispatching it to any + * registered listeners. Note that this method will only get called if + * action events are enabled. This will happen automatically if any + * listeners are added, or it can be done "manually" by calling + * the <code>enableEvents()</code> method. + * + * @param event The event to process. + * + * @since 1.1 + */ + protected void processActionEvent(ActionEvent event) + { + if (action_listeners != null) + action_listeners.actionPerformed(event); + } + + /** + * This method processes the specified event by dispatching it to any + * registered listeners. Note that this method will only get called if + * item events are enabled. This will happen automatically if any + * listeners are added, or it can be done "manually" by calling + * the <code>enableEvents()</code> method. + * + * @param event The event to process. + * + * @since 1.1 + */ + protected void processItemEvent(ItemEvent event) + { + if (item_listeners != null) + item_listeners.itemStateChanged(event); + } + + void dispatchEventImpl(AWTEvent e) + { + if (e.id <= ItemEvent.ITEM_LAST + && e.id >= ItemEvent.ITEM_FIRST + && (item_listeners != null + || (eventMask & AWTEvent.ITEM_EVENT_MASK) != 0)) + processEvent(e); + else if (e.id <= ActionEvent.ACTION_LAST + && e.id >= ActionEvent.ACTION_FIRST + && (action_listeners != null + || (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0)) + processEvent(e); + else + super.dispatchEventImpl(e); + } + + /** + * Returns a debugging string for this object. + * + * @return A debugging string for this object. + */ + protected String paramString() + { + return "multiple=" + multipleMode + ",rows=" + rows + super.paramString(); + } + + /** + * Returns an array of all the objects currently registered as FooListeners + * upon this <code>List</code>. FooListeners are registered using the + * addFooListener method. + * + * @exception ClassCastException If listenerType doesn't specify a class or + * interface that implements java.util.EventListener. + * + * @since 1.3 + */ + public <T extends EventListener> T[] getListeners (Class<T> listenerType) + { + if (listenerType == ActionListener.class) + return AWTEventMulticaster.getListeners (action_listeners, listenerType); + + if (listenerType == ItemListener.class) + return AWTEventMulticaster.getListeners (item_listeners, listenerType); + + return super.getListeners (listenerType); + } + + /** + * Returns all action listeners registered to this object. + * + * @since 1.4 + */ + public ActionListener[] getActionListeners () + { + return (ActionListener[]) getListeners (ActionListener.class); + } + + /** + * Returns all action listeners registered to this object. + * + * @since 1.4 + */ + public ItemListener[] getItemListeners () + { + return (ItemListener[]) getListeners (ItemListener.class); + } + + // Accessibility internal class + protected class AccessibleAWTList extends AccessibleAWTComponent + implements AccessibleSelection, ItemListener, ActionListener + { + private static final long serialVersionUID = 7924617370136012829L; + + protected class AccessibleAWTListChild extends AccessibleAWTComponent + implements Accessible + { + private static final long serialVersionUID = 4412022926028300317L; + + // Field names are fixed by serialization spec. + private List parent; + private int indexInParent; + + public AccessibleAWTListChild(List parent, int indexInParent) + { + this.parent = parent; + this.indexInParent = indexInParent; + if (parent == null) + this.indexInParent = -1; + } + + /* (non-Javadoc) + * @see javax.accessibility.Accessible#getAccessibleContext() + */ + public AccessibleContext getAccessibleContext() + { + return this; + } + + public AccessibleRole getAccessibleRole() + { + return AccessibleRole.LIST_ITEM; + } + + public AccessibleStateSet getAccessibleStateSet() + { + AccessibleStateSet states = super.getAccessibleStateSet(); + if (parent.isIndexSelected(indexInParent)) + states.add(AccessibleState.SELECTED); + return states; + } + + public int getAccessibleIndexInParent() + { + return indexInParent; + } + + } + + public AccessibleAWTList() + { + addItemListener(this); + addActionListener(this); + } + + public AccessibleRole getAccessibleRole() + { + return AccessibleRole.LIST; + } + + public AccessibleStateSet getAccessibleStateSet() + { + AccessibleStateSet states = super.getAccessibleStateSet(); + states.add(AccessibleState.SELECTABLE); + if (isMultipleMode()) + states.add(AccessibleState.MULTISELECTABLE); + return states; + } + + public int getAccessibleChildrenCount() + { + return getItemCount(); + } + + public Accessible getAccessibleChild(int i) + { + if (i >= getItemCount()) + return null; + return new AccessibleAWTListChild(List.this, i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelectionCount() + */ + public int getAccessibleSelectionCount() + { + return getSelectedIndexes().length; + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelection() + */ + public AccessibleSelection getAccessibleSelection() + { + return this; + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelection(int) + */ + public Accessible getAccessibleSelection(int i) + { + int[] items = getSelectedIndexes(); + if (i >= items.length) + return null; + return new AccessibleAWTListChild(List.this, items[i]); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#isAccessibleChildSelected(int) + */ + public boolean isAccessibleChildSelected(int i) + { + return isIndexSelected(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#addAccessibleSelection(int) + */ + public void addAccessibleSelection(int i) + { + select(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#removeAccessibleSelection(int) + */ + public void removeAccessibleSelection(int i) + { + deselect(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#clearAccessibleSelection() + */ + public void clearAccessibleSelection() + { + for (int i = 0; i < getItemCount(); i++) + deselect(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#selectAllAccessibleSelection() + */ + public void selectAllAccessibleSelection() + { + if (isMultipleMode()) + for (int i = 0; i < getItemCount(); i++) + select(i); + } + + /* (non-Javadoc) + * @see java.awt.event.ItemListener#itemStateChanged(java.awt.event.ItemEvent) + */ + public void itemStateChanged(ItemEvent event) + { + } + + /* (non-Javadoc) + * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent) + */ + public void actionPerformed(ActionEvent event) + { + } + + } + + /** + * Gets the AccessibleContext associated with this <code>List</code>. + * The context is created, if necessary. + * + * @return the associated context + */ + public AccessibleContext getAccessibleContext() + { + /* Create the context if this is the first request */ + if (accessibleContext == null) + accessibleContext = new AccessibleAWTList(); + return accessibleContext; + } + + /** + * Generate a unique name for this <code>List</code>. + * + * @return A unique name for this <code>List</code>. + */ + String generateName() + { + return "list" + getUniqueLong(); + } + + private static synchronized long getUniqueLong() + { + return next_list_number++; + } +} // class List |