diff options
Diffstat (limited to 'libjava/classpath/java/awt/List.java')
| -rw-r--r-- | libjava/classpath/java/awt/List.java | 1765 |
1 files changed, 849 insertions, 916 deletions
diff --git a/libjava/classpath/java/awt/List.java b/libjava/classpath/java/awt/List.java index 86270234345..df8bffa1945 100644 --- a/libjava/classpath/java/awt/List.java +++ b/libjava/classpath/java/awt/List.java @@ -1,5 +1,5 @@ /* List.java -- A listbox widget - Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. + Copyright (C) 1999, 2002, 2004, 2006, Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -54,1005 +54,932 @@ import javax.accessibility.AccessibleState; import javax.accessibility.AccessibleStateSet; /** - * Class that implements a listbox widget - * - * @author Aaron M. Renn (arenn@urbanophile.com) - */ + * Class that implements a listbox widget + * + * @author Aaron M. Renn (arenn@urbanophile.com) + */ public class List extends Component implements ItemSelectable, Accessible { -/* - * Static Variables - */ - -/** - * 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; - -/*************************************************************************/ - -/* - * Instance Variables - */ - -// 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; + /** + * The number used to generate the name returned by getName. + */ + private static transient long next_list_number; -/** - * @serial An array of the item indices that are selected. - */ -private int[] selected; + // Serialization constant + private static final long serialVersionUID = -3304312411574666869L; -/** - * @serial An index value used by <code>makeVisible()</code> and - * <code>getVisibleIndex</code>. - */ -private int visibleIndex; + // FIXME: Need read/writeObject -// The list of ItemListeners for this object. -private ItemListener item_listeners; + /** + * @serial The items in the list. + */ + private Vector items = new Vector(); -// The list of ActionListeners for this object. -private ActionListener action_listeners; + /** + * @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; -/* - * Constructors - */ + /** + * @serial An index value used by <code>makeVisible()</code> and + * <code>getVisibleIndex</code>. + */ + private int visibleIndex = -1; -/** - * Initializes a new instance of <code>List</code> with no visible lines - * and multi-select disabled. - * - * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true. - */ -public -List() -{ - this(4, false); -} + // 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 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 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; + /** + * 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 (); -} - -/*************************************************************************/ - -/* - * Instance Variables - */ + this.multipleMode = multipleMode; + selected = new int[0]; -/** - * Returns the number of items in this list. - * - * @return The number of items in this list. - */ -public int -getItemCount() -{ - return countItems (); -} - -/*************************************************************************/ + if (GraphicsEnvironment.isHeadless()) + throw new HeadlessException(); + + } -/** - * 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 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. - */ -public synchronized String[] -getItems() -{ - String[] l_items = new String[getItemCount()]; + /** + * 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. - */ -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. - */ -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. - */ -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. - */ -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. - */ -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. - */ -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. - */ -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. - */ -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 ((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 -{ - items.removeElementAt (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 - */ -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 -{ - if ((start < 0) || (start >= items.size())) - throw new IllegalArgumentException("Bad list start index value: " + start); - - if ((start < 0) || (start >= items.size())) - throw new IllegalArgumentException("Bad list start index value: " + start); - - if (start > end) - throw new IllegalArgumentException("Start is greater than end!"); - - // 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); - } -} - -/*************************************************************************/ + items.copyInto(l_items); + return(l_items); + } -/** - * 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. - */ -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"); + /** + * 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)); + } - remove(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 (); + } -/** - * Deletes all of the items from the list. - */ -public synchronized void -removeAll() -{ - clear (); -} + /** + * 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); + } -/** - * Deletes all of the items from the list. - * - * @deprecated This method is deprecated in favor of <code>removeAll()</code>. - */ -public void -clear() -{ - items.clear(); + /** + * 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.removeAll (); -} + 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()); + } -/** - * 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); + /** + * 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()); + } - items.insertElementAt(item, index + 1); - items.removeElementAt (index); + /** + * 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); + } - if (peer != null) - { - ListPeer l = (ListPeer) peer; + /** + * 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); + } - /* 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 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 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 (); - } + /** + * 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); + } - if (selected == null || selected.length != 1) - return -1; - return selected[0]; -} + /** + * 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); + } -/** - * 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; -} + /** + * 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); + } -/** - * 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); + /** + * 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); + } - return((String)items.elementAt(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); + } -/** - * 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]); + /** + * 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); + } - 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]); + /** + * 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); + } + } - return(retvals); -} + /** + * 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); + } -/** - * 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]); + /** + * Deletes all of the items from the list. + * + * @since 1.1 + */ + public synchronized void removeAll() + { + clear(); + } - Object[] retvals = new Object[indexes.length]; - if (retvals.length > 0) - for (int i = 0 ; i < retvals.length; i++) - retvals[i] = items.elementAt(indexes[i]); + /** + * Deletes all of the items from the list. + * + * @deprecated This method is deprecated in favor of <code>removeAll()</code>. + */ + public void clear() + { + items.clear(); - return(retvals); -} + 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); -/** - * 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. - */ -public boolean -isIndexSelected(int index) -{ - return isSelected (index); -} + items.insertElementAt(item, index + 1); + items.removeElementAt (index); -/*************************************************************************/ + if (peer != null) + { + ListPeer l = (ListPeer) peer; -/** - * 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 (); + /* We add first and then remove so that the selected + item remains the same */ + l.add (item, index + 1); + l.delItems (index, index); + } + } - for (int i = 0; i < indexes.length; i++) - if (indexes[i] == index) - return true; + /** + * 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 (); + } - return false; -} + 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; + } -/** - * 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 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 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); -} + /** + * 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]); -/** - * 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); -} + 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]); -/** - * Makes the item at the specified index not selected. - * - * @param index The index of the item to unselect. - */ -public synchronized void -deselect(int index) -{ - ListPeer lp = (ListPeer)getPeer(); - if (lp != null) - lp.deselect(index); -} + 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); + } -/** - * Notifies this object to create its native peer. - */ -public void -addNotify() -{ - if (peer == null) - peer = getToolkit ().createList (this); - super.addNotify (); -} + /** + * 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(); -/** - * Notifies this object to destroy its native peer. - */ -public void -removeNotify() -{ - super.removeNotify(); -} + for (int i = 0; i < indexes.length; i++) + if (indexes[i] == index) + return true; -/*************************************************************************/ + return false; + } -/** - * Adds the specified <code>ActionListener</code> to the list of - * registered listeners for this object. - * - * @param listener The listener to add. - */ -public synchronized void -addActionListener(ActionListener listener) -{ - action_listeners = AWTEventMulticaster.add(action_listeners, listener); -} + /** + * 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; + } -/** - * Removes the specified <code>ActionListener</code> from the list of - * registers listeners for this object. - * - * @param listener The listener to remove. - */ -public synchronized void -removeActionListener(ActionListener listener) -{ - action_listeners = AWTEventMulticaster.remove(action_listeners, listener); -} + /** + * 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; + } + } -/** - * Adds the specified <code>ItemListener</code> to the list of - * registered listeners for this object. - * - * @param listener The listener to add. - */ -public synchronized void -addItemListener(ItemListener listener) -{ - item_listeners = AWTEventMulticaster.add(item_listeners, listener); -} + /** + * 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(); + } -/** - * Removes the specified <code>ItemListener</code> from the list of - * registers listeners for this object. - * - * @param listener The listener to remove. - */ -public synchronized void -removeItemListener(ItemListener listener) -{ - item_listeners = AWTEventMulticaster.remove(item_listeners, listener); -} + /** + * 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); + } -/** - * 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. - */ -protected void -processEvent(AWTEvent event) -{ - if (event instanceof ActionEvent) - processActionEvent((ActionEvent)event); - else if (event instanceof ItemEvent) - processItemEvent((ItemEvent)event); - else - super.processEvent(event); -} + /** + * 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); + } -/** - * 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. - */ -protected void -processActionEvent(ActionEvent event) -{ - if (action_listeners != null) - action_listeners.actionPerformed(event); -} + /** + * 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. - */ -protected void -processItemEvent(ItemEvent event) -{ - if (item_listeners != null) - item_listeners.itemStateChanged(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 + 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); -} - -/*************************************************************************/ + || (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 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 @@ -1061,12 +988,14 @@ paramString() * * @exception ClassCastException If listenerType doesn't specify a class or * interface that implements java.util.EventListener. + * + * @since 1.3 */ - public EventListener[] getListeners (Class listenerType) + 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); @@ -1075,6 +1004,8 @@ paramString() /** * Returns all action listeners registered to this object. + * + * @since 1.4 */ public ActionListener[] getActionListeners () { @@ -1083,6 +1014,8 @@ paramString() /** * Returns all action listeners registered to this object. + * + * @since 1.4 */ public ItemListener[] getItemListeners () { |