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/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.impl.gui.main.chat;
import javax.swing.*;
import net.java.sip.communicator.util.*;
/**
* The <tt>ChatContact</tt> is a wrapping class for the <tt>Contact</tt> and
* <tt>ChatRoomMember</tt> interface.
*
* @param <T> the type of the descriptor
*
* @author Yana Stamcheva
* @author Lubomir Marinov
*/
public abstract class ChatContact<T>
{
/**
* The height of the avatar icon.
*/
public static final int AVATAR_ICON_HEIGHT = 25;
/**
* The width of the avatar icon.
*/
public static final int AVATAR_ICON_WIDTH = 25;
/**
* The avatar image corresponding to the source contact in the form of an
* <code>ImageIcon</code>.
*/
private ImageIcon avatar;
/**
* The avatar image corresponding to the source contact in the form of an
* array of bytes.
*/
private byte[] avatarBytes;
/**
* The descriptor being adapted by this instance.
*/
protected final T descriptor;
/**
* If this instance is selected.
*/
private boolean selected;
/**
* Initializes a new <tt>ChatContact</tt> instance with a specific
* descriptor.
*
* @param descriptor the descriptor to be adapted by the new instance
*/
protected ChatContact(T descriptor)
{
this.descriptor = descriptor;
}
/**
* Determines whether a specific <tt>Object</tt> represents the same value
* as this <tt>ChatContact</tt>.
*
* @param obj the <tt>Object</tt> to be checked for value equality with this
* <tt>ChatContact</tt>
* @return <tt>true</tt> if <tt>obj</tt> represents the same value as this
* <tt>ChatContact</tt>; otherwise, <tt>false</tt>.
*/
@Override
public boolean equals(Object obj)
{
if (this == obj)
return true;
/*
* ChatContact is an adapter so two ChatContacts of the same runtime
* type with equal descriptors are equal.
*/
if (!getClass().isInstance(obj))
return false;
@SuppressWarnings("unchecked")
ChatContact<T> chatContact = (ChatContact<T>) obj;
return getDescriptor().equals(chatContact.getDescriptor());
}
/**
* Returns the avatar image corresponding to the source contact. In the case
* of multi user chat contact returns null.
*
* @return the avatar image corresponding to the source contact. In the case
* of multi user chat contact returns null
*/
public ImageIcon getAvatar()
{
byte[] avatarBytes = getAvatarBytes();
if (this.avatarBytes != avatarBytes)
{
this.avatarBytes = avatarBytes;
this.avatar = null;
}
if ((this.avatar == null)
&& (this.avatarBytes != null) && (this.avatarBytes.length > 0))
this.avatar
= ImageUtils.getScaledRoundedIcon(
this.avatarBytes,
AVATAR_ICON_WIDTH,
AVATAR_ICON_HEIGHT);
return this.avatar;
}
/**
* Gets the avatar image corresponding to the source contact in the form of
* an array of bytes.
*
* @return an array of bytes which represents the avatar image corresponding
* to the source contact
*/
protected abstract byte[] getAvatarBytes();
/**
* Returns the descriptor object corresponding to this chat contact. In the
* case of single chat this could be the <tt>MetaContact</tt> and in the
* case of conference chat this could be the <tt>ChatRoomMember</tt>.
*
* @return the descriptor object corresponding to this chat contact.
*/
public T getDescriptor()
{
return descriptor;
}
/**
* Returns the contact name.
*
* @return the contact name
*/
public abstract String getName();
/**
* Gets the implementation-specific identifier which uniquely specifies this
* contact.
*
* @return an identifier which uniquely specifies this contact
*/
public abstract String getUID();
/**
* Gets a hash code value for this object for the benefit of hashtables.
*
* @return a hash code value for this object
*/
@Override
public int hashCode()
{
/*
* ChatContact is an adapter so two ChatContacts of the same runtime
* type with equal descriptors are equal.
*/
return getDescriptor().hashCode();
}
/**
* Returns <code>true</code> if this is the currently selected contact in
* the list of contacts for the chat, otherwise returns <code>false</code>.
* @return <code>true</code> if this is the currently selected contact in
* the list of contacts for the chat, otherwise returns <code>false</code>.
*/
public boolean isSelected()
{
return selected;
}
/**
* Sets this isSelected property of this chat contact.
*
* @param selected <code>true</code> to indicate that this contact would be
* the selected contact in the list of chat window contacts; otherwise,
* <code>false</code>
*/
public void setSelected(boolean selected)
{
this.selected = selected;
}
}
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