[multiple changes]
2006-08-02 Sven de Marothy <sven@physto.se> * gnu/java/awt/peer/gtk/GtkChoicePeer.java (remove): Force event on removing item 0 when it's selected. (handleEvent): Always call Choice.selected(). * java/awt/Choice.java: (remove): Simplify and correct. 2006-07-30 Sven de Marothy <sven@physto.se> * java/awt/Choice.java: (accessibleAction): Call select() directly. (add, insert, remove): Reimplement. (dispatchEventImpl): Always call super. (processItemEvent): Does not set the index. * include/gnu_java_awt_peer_gtk_GtkChoicePeer.h * native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkChoicePeer.c (append): removed. (nativeAdd): Name changed to add. (selection_changed_cb): Simplify callback. * gnu/java/awt/peer/gtk/GtkChoicePeer.java (selected): New field. (add): Replaced with native impl. (handleEvent): New method. From-SVN: r117142
This commit is contained in:
Sven de Marothy
Thomas Fitzsimmons
parent
36b2419387
commit
2067150ee1
5 changed files with 427 additions and 532 deletions
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@ -1,5 +1,5 @@
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/* Choice.java -- Java choice button widget.
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Copyright (C) 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
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Copyright (C) 1999, 2000, 2001, 2002, 2004, 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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@ -51,56 +51,47 @@ import javax.accessibility.AccessibleContext;
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import javax.accessibility.AccessibleRole;
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/**
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* This class implements a drop down choice list.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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* This class implements a drop down choice list.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public class Choice extends Component
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implements ItemSelectable, Serializable, Accessible
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{
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/**
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* The number used to generate the name returned by getName.
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*/
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private static transient long next_choice_number;
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/*
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* Static Variables
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*/
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// Serialization constant
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private static final long serialVersionUID = -4075310674757313071L;
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/**
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* The number used to generate the name returned by getName.
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*/
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private static transient long next_choice_number;
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/**
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* @serial A list of items for the choice box, which can be <code>null</code>.
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* This is package-private to avoid an accessor method.
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*/
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Vector pItems = new Vector();
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// Serialization constant
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private static final long serialVersionUID = -4075310674757313071L;
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/**
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* @serial The index of the selected item in the choice box.
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*/
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private int selectedIndex = -1;
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/*************************************************************************/
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/**
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* ItemListener chain
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*/
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private ItemListener item_listeners;
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/*
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* Instance Variables
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*/
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/**
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* @serial A list of items for the choice box, which can be <code>null</code>.
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* This is package-private to avoid an accessor method.
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*/
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Vector pItems = new Vector();
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/**
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* @serial The index of the selected item in the choice box.
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*/
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private int selectedIndex = -1;
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// Listener chain
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private ItemListener item_listeners;
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/**
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* This class provides accessibility support for the
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* combo box.
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*
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* @author Jerry Quinn (jlquinn@optonline.net)
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* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
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*/
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/**
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* This class provides accessibility support for the
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* combo box.
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*
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* @author Jerry Quinn (jlquinn@optonline.net)
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* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
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*/
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protected class AccessibleAWTChoice
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extends AccessibleAWTComponent
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implements AccessibleAction
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extends AccessibleAWTComponent
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implements AccessibleAction
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{
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/**
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@ -186,19 +177,12 @@ private ItemListener item_listeners;
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if (i < 0 || i >= pItems.size())
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return false;
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Choice.this.processItemEvent(new ItemEvent(Choice.this,
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ItemEvent.ITEM_STATE_CHANGED,
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this, ItemEvent.SELECTED));
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Choice.this.select( i );
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return true;
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}
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}
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/*************************************************************************/
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/*
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* Constructors
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*/
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/**
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* Initializes a new instance of <code>Choice</code>.
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*
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@ -211,397 +195,323 @@ private ItemListener item_listeners;
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throw new HeadlessException ();
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}
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/*************************************************************************/
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/*
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* Instance Methods
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*/
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/**
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* Returns the number of items in the list.
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*
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* @return The number of items in the list.
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*/
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public int
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getItemCount()
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{
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return countItems ();
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}
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/*************************************************************************/
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/**
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* Returns the number of items in the list.
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*
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* @return The number of items in the list.
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*
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* @deprecated This method is deprecated in favor of <code>getItemCount</code>.
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*/
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public int
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countItems()
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{
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return(pItems.size());
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}
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/*************************************************************************/
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/**
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* Returns the item at the specified index in the list.
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*
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* @param index The index into the list to return the item from.
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*
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* @exception ArrayIndexOutOfBoundsException If the index is invalid.
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*/
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public String
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getItem(int index)
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{
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return((String)pItems.elementAt(index));
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}
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/*************************************************************************/
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/**
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* Adds the specified item to this choice box.
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*
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* @param item The item to add.
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*
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* @exception NullPointerException If the item's value is null
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*
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* @since 1.1
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*/
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public synchronized void
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add(String item)
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{
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if (item == null)
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throw new NullPointerException ("item must be non-null");
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pItems.addElement(item);
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int i = pItems.size () - 1;
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if (peer != null)
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{
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ChoicePeer cp = (ChoicePeer) peer;
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cp.add (item, i);
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}
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else if (selectedIndex == -1)
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select(0);
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}
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/*************************************************************************/
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/**
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* Adds the specified item to this choice box.
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*
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* This method is oboslete since Java 2 platform 1.1. Please use @see add
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* instead.
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*
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* @param item The item to add.
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*
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* @exception NullPointerException If the item's value is equal to null
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*/
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public synchronized void
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addItem(String item)
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{
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add(item);
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}
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/*************************************************************************/
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/** Inserts an item into this Choice. Existing items are shifted
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* upwards. If the new item is the only item, then it is selected.
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* If the currently selected item is shifted, then the first item is
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* selected. If the currently selected item is not shifted, then it
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* remains selected.
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*
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* @param item The item to add.
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* @param index The index at which the item should be inserted.
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*
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* @exception IllegalArgumentException If index is less than 0
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*/
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public synchronized void
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insert(String item, int index)
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{
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if (index < 0)
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throw new IllegalArgumentException ("index may not be less then 0");
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if (index > getItemCount ())
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index = getItemCount ();
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pItems.insertElementAt(item, index);
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if (peer != null)
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{
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ChoicePeer cp = (ChoicePeer) peer;
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cp.add (item, index);
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}
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else if (selectedIndex == -1 || selectedIndex >= index)
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select(0);
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}
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/*************************************************************************/
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/**
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* Removes the specified item from the choice box.
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*
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* @param item The item to remove.
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*
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* @exception IllegalArgumentException If the specified item doesn't exist.
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*/
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public synchronized void
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remove(String item)
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{
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int index = pItems.indexOf(item);
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if (index == -1)
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throw new IllegalArgumentException ("item \""
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+ item + "\" not found in Choice");
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remove(index);
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}
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/*************************************************************************/
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/**
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* Removes the item at the specified index from the choice box.
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*
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* @param index The index of the item to remove.
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*
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* @exception IndexOutOfBoundsException If the index is not valid.
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*/
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public synchronized void
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remove(int index)
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{
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if ((index < 0) || (index > getItemCount()))
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throw new IllegalArgumentException("Bad index: " + index);
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pItems.removeElementAt(index);
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if (peer != null)
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{
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ChoicePeer cp = (ChoicePeer) peer;
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cp.remove (index);
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}
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else
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{
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if (getItemCount() == 0)
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selectedIndex = -1;
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else if (index == selectedIndex)
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select(0);
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}
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if (selectedIndex > index)
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--selectedIndex;
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}
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/*************************************************************************/
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/**
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* Removes all of the objects from this choice box.
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*/
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public synchronized void
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removeAll()
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{
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if (getItemCount() <= 0)
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return;
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pItems.removeAllElements ();
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if (peer != null)
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{
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ChoicePeer cp = (ChoicePeer) peer;
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cp.removeAll ();
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}
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selectedIndex = -1;
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}
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/*************************************************************************/
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/**
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* Returns the currently selected item, or null if no item is
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* selected.
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*
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* @return The currently selected item.
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*/
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public synchronized String
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getSelectedItem()
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{
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return (selectedIndex == -1
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? null
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: ((String)pItems.elementAt(selectedIndex)));
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}
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/*************************************************************************/
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/**
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* Returns an array with one row containing the selected item.
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*
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* @return An array containing the selected item.
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*/
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public synchronized Object[]
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getSelectedObjects()
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{
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if (selectedIndex == -1)
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return null;
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Object[] objs = new Object[1];
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objs[0] = pItems.elementAt(selectedIndex);
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return(objs);
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}
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/*************************************************************************/
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/**
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* Returns the index of the selected item.
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*
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* @return The index of the selected item.
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*/
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public int
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getSelectedIndex()
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{
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return(selectedIndex);
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}
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/*************************************************************************/
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/**
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* Forces the item at the specified index to be selected.
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*
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* @param index The index of the row to make selected.
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*
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* @exception IllegalArgumentException If the specified index is invalid.
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*/
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public synchronized void
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select(int index)
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{
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if ((index < 0) || (index >= getItemCount()))
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throw new IllegalArgumentException("Bad index: " + index);
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if (pItems.size() > 0) {
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selectedIndex = index;
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ChoicePeer cp = (ChoicePeer) peer;
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if (cp != null) {
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cp.select(index);
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}
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/**
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* Returns the number of items in the list.
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*
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* @return The number of items in the list.
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*/
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public int getItemCount()
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{
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return countItems ();
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}
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}
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/*************************************************************************/
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/**
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* Returns the number of items in the list.
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*
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* @return The number of items in the list.
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*
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* @deprecated This method is deprecated in favor of <code>getItemCount</code>.
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*/
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public int countItems()
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{
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return pItems.size();
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}
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/**
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* Forces the named item to be selected.
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*
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* @param item The item to be selected.
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*
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* @exception IllegalArgumentException If the specified item does not exist.
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*/
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public synchronized void
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select(String item)
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{
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int index = pItems.indexOf(item);
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if (index >= 0)
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select(index);
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}
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/**
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* Returns the item at the specified index in the list.
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*
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* @param index The index into the list to return the item from.
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*
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* @exception ArrayIndexOutOfBoundsException If the index is invalid.
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*/
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public String getItem(int index)
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{
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return (String)pItems.elementAt(index);
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}
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/*************************************************************************/
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/**
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* Adds the specified item to this choice box.
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*
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* @param item The item to add.
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*
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* @exception NullPointerException If the item's value is null
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*
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* @since 1.1
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*/
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public synchronized void add(String item)
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{
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if (item == null)
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throw new NullPointerException ("item must be non-null");
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/**
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* Creates the native peer for this object.
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*/
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public void
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addNotify()
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{
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if (peer == null)
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peer = getToolkit ().createChoice (this);
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super.addNotify ();
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}
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pItems.addElement(item);
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/*************************************************************************/
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if (peer != null)
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((ChoicePeer) peer).add(item, getItemCount() - 1);
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/**
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* Adds the specified listener to the list of registered listeners for
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* this object.
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*
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* @param listener The listener to add.
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*/
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public synchronized void
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addItemListener(ItemListener listener)
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{
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item_listeners = AWTEventMulticaster.add(item_listeners, listener);
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}
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if (selectedIndex == -1)
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select( 0 );
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}
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/*************************************************************************/
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/**
|
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* Adds the specified item to this choice box.
|
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*
|
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* This method is oboslete since Java 2 platform 1.1. Please use @see add
|
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* instead.
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*
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* @param item The item to add.
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*
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* @exception NullPointerException If the item's value is equal to null
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*/
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public synchronized void addItem(String item)
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{
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add(item);
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}
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/**
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* Removes the specified listener from the list of registered listeners for
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* this object.
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*
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* @param listener The listener to remove.
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*/
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public synchronized void
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removeItemListener(ItemListener listener)
|
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{
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item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
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}
|
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/** Inserts an item into this Choice. Existing items are shifted
|
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* upwards. If the new item is the only item, then it is selected.
|
||||
* If the currently selected item is shifted, then the first item is
|
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* selected. If the currently selected item is not shifted, then it
|
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* remains selected.
|
||||
*
|
||||
* @param item The item to add.
|
||||
* @param index The index at which the item should be inserted.
|
||||
*
|
||||
* @exception IllegalArgumentException If index is less than 0
|
||||
*/
|
||||
public synchronized void insert(String item, int index)
|
||||
{
|
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if (index < 0)
|
||||
throw new IllegalArgumentException ("index may not be less then 0");
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||||
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||||
/*************************************************************************/
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if (index > getItemCount ())
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index = getItemCount ();
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|
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/**
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* Processes this event by invoking <code>processItemEvent()</code> if the
|
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* event is an instance of <code>ItemEvent</code>, otherwise the event
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* is passed to the superclass.
|
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*
|
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* @param event The event to process.
|
||||
*/
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protected void
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processEvent(AWTEvent event)
|
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{
|
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if (event instanceof ItemEvent)
|
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processItemEvent((ItemEvent)event);
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else
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super.processEvent(event);
|
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}
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pItems.insertElementAt(item, index);
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void
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dispatchEventImpl(AWTEvent e)
|
||||
{
|
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if (e.id <= ItemEvent.ITEM_LAST
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&& e.id >= ItemEvent.ITEM_FIRST
|
||||
&& (item_listeners != null || (eventMask & AWTEvent.ITEM_EVENT_MASK) != 0))
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processEvent(e);
|
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else
|
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if (peer != null)
|
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((ChoicePeer) peer).add (item, index);
|
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|
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if (selectedIndex == -1 || selectedIndex >= index)
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select(0);
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}
|
||||
|
||||
/**
|
||||
* Removes the specified item from the choice box.
|
||||
*
|
||||
* @param item The item to remove.
|
||||
*
|
||||
* @exception IllegalArgumentException If the specified item doesn't exist.
|
||||
*/
|
||||
public synchronized void remove(String item)
|
||||
{
|
||||
int index = pItems.indexOf(item);
|
||||
if (index == -1)
|
||||
throw new IllegalArgumentException ("item \""
|
||||
+ item + "\" not found in Choice");
|
||||
remove(index);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes the item at the specified index from the choice box.
|
||||
*
|
||||
* @param index The index of the item to remove.
|
||||
*
|
||||
* @exception IndexOutOfBoundsException If the index is not valid.
|
||||
*/
|
||||
public synchronized void remove(int index)
|
||||
{
|
||||
if ((index < 0) || (index > getItemCount()))
|
||||
throw new IllegalArgumentException("Bad index: " + index);
|
||||
|
||||
pItems.removeElementAt(index);
|
||||
|
||||
if (peer != null)
|
||||
((ChoicePeer) peer).remove( index );
|
||||
|
||||
if( getItemCount() == 0 )
|
||||
selectedIndex = -1;
|
||||
else
|
||||
{
|
||||
if( selectedIndex > index )
|
||||
selectedIndex--;
|
||||
else if( selectedIndex == index )
|
||||
selectedIndex = 0;
|
||||
|
||||
if( peer != null )
|
||||
((ChoicePeer)peer).select( selectedIndex );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes all of the objects from this choice box.
|
||||
*/
|
||||
public synchronized void removeAll()
|
||||
{
|
||||
if (getItemCount() <= 0)
|
||||
return;
|
||||
|
||||
pItems.removeAllElements ();
|
||||
|
||||
if (peer != null)
|
||||
{
|
||||
ChoicePeer cp = (ChoicePeer) peer;
|
||||
cp.removeAll ();
|
||||
}
|
||||
|
||||
selectedIndex = -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the currently selected item, or null if no item is
|
||||
* selected.
|
||||
*
|
||||
* @return The currently selected item.
|
||||
*/
|
||||
public synchronized String getSelectedItem()
|
||||
{
|
||||
return (selectedIndex == -1
|
||||
? null
|
||||
: ((String)pItems.elementAt(selectedIndex)));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array with one row containing the selected item.
|
||||
*
|
||||
* @return An array containing the selected item.
|
||||
*/
|
||||
public synchronized Object[] getSelectedObjects()
|
||||
{
|
||||
if (selectedIndex == -1)
|
||||
return null;
|
||||
|
||||
Object[] objs = new Object[1];
|
||||
objs[0] = pItems.elementAt(selectedIndex);
|
||||
|
||||
return objs;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the index of the selected item.
|
||||
*
|
||||
* @return The index of the selected item.
|
||||
*/
|
||||
public int getSelectedIndex()
|
||||
{
|
||||
return selectedIndex;
|
||||
}
|
||||
|
||||
/**
|
||||
* Forces the item at the specified index to be selected.
|
||||
*
|
||||
* @param index The index of the row to make selected.
|
||||
*
|
||||
* @exception IllegalArgumentException If the specified index is invalid.
|
||||
*/
|
||||
public synchronized void select(int index)
|
||||
{
|
||||
if ((index < 0) || (index >= getItemCount()))
|
||||
throw new IllegalArgumentException("Bad index: " + index);
|
||||
|
||||
if( selectedIndex == index )
|
||||
return;
|
||||
|
||||
selectedIndex = index;
|
||||
if( peer != null )
|
||||
((ChoicePeer)peer).select( index );
|
||||
}
|
||||
|
||||
/**
|
||||
* Forces the named item to be selected.
|
||||
*
|
||||
* @param item The item to be selected.
|
||||
*
|
||||
* @exception IllegalArgumentException If the specified item does not exist.
|
||||
*/
|
||||
public synchronized void select(String item)
|
||||
{
|
||||
int index = pItems.indexOf(item);
|
||||
if( index >= 0 )
|
||||
select( index );
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates the native peer for this object.
|
||||
*/
|
||||
public void addNotify()
|
||||
{
|
||||
if (peer == null)
|
||||
peer = getToolkit ().createChoice (this);
|
||||
super.addNotify ();
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds the specified listener 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);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes the specified listener from the list of registered listeners for
|
||||
* this object.
|
||||
*
|
||||
* @param listener The listener to remove.
|
||||
*/
|
||||
public synchronized void removeItemListener(ItemListener listener)
|
||||
{
|
||||
item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
|
||||
}
|
||||
|
||||
/**
|
||||
* Processes this event by invoking <code>processItemEvent()</code> if the
|
||||
* event is an instance of <code>ItemEvent</code>, otherwise the event
|
||||
* is passed to the superclass.
|
||||
*
|
||||
* @param event The event to process.
|
||||
*/
|
||||
protected void processEvent(AWTEvent event)
|
||||
{
|
||||
if (event instanceof ItemEvent)
|
||||
processItemEvent((ItemEvent)event);
|
||||
else
|
||||
super.processEvent(event);
|
||||
}
|
||||
|
||||
void dispatchEventImpl(AWTEvent e)
|
||||
{
|
||||
super.dispatchEventImpl(e);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
if( e.id <= ItemEvent.ITEM_LAST && e.id >= ItemEvent.ITEM_FIRST &&
|
||||
( item_listeners != null ||
|
||||
( eventMask & AWTEvent.ITEM_EVENT_MASK ) != 0 ) )
|
||||
processEvent(e);
|
||||
}
|
||||
|
||||
/**
|
||||
* Processes item event by dispatching to any registered listeners.
|
||||
*
|
||||
* @param event The event to process.
|
||||
*/
|
||||
protected void
|
||||
processItemEvent(ItemEvent event)
|
||||
{
|
||||
int index = pItems.indexOf((String) event.getItem());
|
||||
// Don't call back into the peers when selecting index here
|
||||
if (event.getStateChange() == ItemEvent.SELECTED)
|
||||
this.selectedIndex = index;
|
||||
if (item_listeners != null)
|
||||
item_listeners.itemStateChanged(event);
|
||||
}
|
||||
/**
|
||||
* Processes item event by dispatching to any registered listeners.
|
||||
*
|
||||
* @param event The event to process.
|
||||
*/
|
||||
protected void processItemEvent(ItemEvent event)
|
||||
{
|
||||
int index = pItems.indexOf((String) event.getItem());
|
||||
if (item_listeners != null)
|
||||
item_listeners.itemStateChanged(event);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns a debugging string for this object.
|
||||
*
|
||||
* @return A debugging string for this object.
|
||||
*/
|
||||
protected String
|
||||
paramString()
|
||||
{
|
||||
return ("selectedIndex=" + selectedIndex + "," + super.paramString());
|
||||
}
|
||||
/**
|
||||
* Returns a debugging string for this object.
|
||||
*
|
||||
* @return A debugging string for this object.
|
||||
*/
|
||||
protected String paramString()
|
||||
{
|
||||
return "selectedIndex=" + selectedIndex + "," + super.paramString();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of all the objects currently registered as FooListeners
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue