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wcrisman
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/*
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* Copyright (c) 2007,2009 Declarative Engineering LLC.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Declarative Engineering LLC
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* verson 1 which accompanies this distribution, and is available at
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* http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
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*/
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package com.foundation.tcv.swt.client;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.graphics.Image;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Listener;
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import org.eclipse.swt.widgets.Shell;
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import com.common.comparison.Comparator;
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import com.foundation.tcv.client.view.ResourceHolder;
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import com.foundation.tcv.model.LinkInfo;
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import com.foundation.tcv.swt.ITrayItem;
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import com.foundation.tcv.swt.client.AbstractComponent.Linkage;
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import com.foundation.tcv.view.ViewMessage;
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import com.foundation.view.JefImage;
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import com.foundation.view.LinkData;
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import com.foundation.view.swt.SwtViewContext;
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public class TrayItem extends AbstractComponent implements ITrayItem {
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/** The reference to the popup menu. Not all components must allow a popup menu. */
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private Menu menu = null;
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/** A holder for the value of the tool tip text. */
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private ResourceHolder toolTipTextHolder = new ResourceHolder(this);
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/** A holder for the value of the visibility flag. */
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private ResourceHolder isVisibleHolder = new ResourceHolder(this);
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/** A holder for the value of the image. */
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private ResourceHolder imageHolder = new ResourceHolder(this);
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/** The swt image. */
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private Image swtImage = null;
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/** A shell used only to support the menu used by the tray item. */
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private Shell shell = null;
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/** Whether selection notifications are sent to the server. */
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private boolean synchronizeSelections = false;
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/** The linkage for the selection. */
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private Linkage selectionLinkage = new Linkage();
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/**
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* TrayItem constructor.
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*/
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public TrayItem() {
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}//TrayItem()//
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/* (non-Javadoc)
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* @see AbstractComponent#destroy()
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*/
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protected void destroy() {
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if(getSwtTrayItem() != null) {
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if(!getSwtTrayItem().isDisposed()) {
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getSwtTrayItem().setVisible(false);
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}//if//
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super.destroy();
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}//if//
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}//destroy()//
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/* (non-Javadoc)
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* @see com.foundation.view.swt.IDecoration#getMenuBar()
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*/
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public Menu getMenu() {
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return menu;
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}//getMenuBar()//
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/* (non-Javadoc)
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* @see com.foundation.view.swt.IDecoration#setMenuBar(com.foundation.view.swt.Menu)
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*/
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public void setMenu(Menu menu) {
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this.menu = menu;
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}//setMenu()//
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/**
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* Gets the widget encapsulated by this component.
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* @return The encapsulated widget, or null if this component does not have a viewable element.
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*/
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public org.eclipse.swt.widgets.TrayItem getSwtTrayItem() {
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return (org.eclipse.swt.widgets.TrayItem) getSwtWidget();
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}//getSwtTrayItem()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#getContainer()
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*/
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public Container getContainer() {
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return null;
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}//getContainer()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#getShell()
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*/
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public Shell getShell() {
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return shell;
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}//getShell()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#inernalViewInitializeAll()
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*/
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protected void internalViewInitializeAll() {
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if(getMenu() != null) {
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getMenu().internalViewInitializeAll();
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}//if//
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super.internalViewInitializeAll();
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}//inernalViewInitializeAll()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewReleaseAll()
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*/
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protected void internalViewReleaseAll() {
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if(getMenu() != null) {
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getMenu().internalViewReleaseAll();
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}//if//
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super.internalViewReleaseAll();
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}//internalViewReleaseAll()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewSynchronizeAll()
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*/
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protected void internalViewSynchronizeAll() {
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if(getMenu() != null) {
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getMenu().internalViewSynchronizeAll();
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}//if//
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super.internalViewSynchronizeAll();
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}//internalViewSynchronizeAll()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewInitialize()
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*/
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protected void internalViewInitialize() {
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getSwtTrayItem().addListener(SWT.MenuDetect, new Listener() {
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public void handleEvent(Event event) {
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if(menu != null) {
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menu.getSwtMenu().setVisible(true);
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}//if//
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}//handleEvent()//
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});
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getSwtTrayItem().addSelectionListener(new SelectionListener() {
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public void widgetSelected(SelectionEvent e) {
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if(synchronizeSelections) {
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sendRoundTripMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, null, null, e.x, e.y, null);
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}//if//
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else if(menu != null) {
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menu.getSwtMenu().setVisible(true);
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}//else if//
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selectionLinkage.invoke(null);
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}//widgetSelected()//
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public void widgetDefaultSelected(SelectionEvent e) {
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}//widgetDefaultSelected()//
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});
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super.internalViewInitialize();
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}//internalViewInitialize()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewRelease()
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*/
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protected void internalViewRelease() {
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destroyImage(swtImage);
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if(getContainer() != null) {
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getContainer().getComponents().remove(this);
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}//if//
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toolTipTextHolder.release();
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isVisibleHolder.release();
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imageHolder.release();
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super.internalViewRelease();
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}//internalViewRelease()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalResourceHolderChanged(com.foundation.tcv.client.view.ResourceHolder, java.lang.Object, java.lang.Object, int)
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*/
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protected void internalResourceHolderChanged(ResourceHolder resourceHolder, Object oldValue, Object newValue, int flags) {
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if(resourceHolder == toolTipTextHolder) {
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setToolTipText((String) newValue);
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}//if//
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else if(resourceHolder == imageHolder) {
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destroyImage(swtImage);
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if(!getSwtTrayItem().isDisposed()) {
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swtImage = createImage((JefImage) imageHolder.getValue());
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getSwtTrayItem().setImage(swtImage);
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}//if//
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}//else if//
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else if(resourceHolder == isVisibleHolder) {
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if(!getSwtTrayItem().isDisposed()) {
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getSwtTrayItem().setVisible(((Boolean) newValue).booleanValue());
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}//if//
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}//else if//
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else {
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super.internalResourceHolderChanged(resourceHolder, oldValue, newValue, flags);
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}//else//
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}//internalOnAssociationChanged()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalOnLinkInvoked(int, java.lang.Object)
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*/
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protected void internalOnLinkInvoked(int linkTarget, Object data) {
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switch(linkTarget) {
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case LINK_TARGET_IS_VISIBLE: {
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getSwtTrayItem().setVisible(data != null && data instanceof Boolean ? ((Boolean) data).booleanValue() : false);
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break;
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}//case//
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case LINK_TARGET_TOOL_TIP_TEXT: {
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getSwtTrayItem().setToolTipText(data instanceof String ? (String) data : "");
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break;
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}//case//
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default: {
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super.internalOnLinkInvoked(linkTarget, data);
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break;
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}//default//
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}//switch//
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}//internalOnLinkInvoked()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalProcessMessage(com.foundation.tcv.model.ViewMessage)
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*/
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public Object internalProcessMessage(ViewMessage viewMessage) {
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Object result = null;
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switch(viewMessage.getMessageNumber()) {
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case MESSAGE_INITIALIZE: {
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if(getSwtTrayItem() == null) {
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int style = viewMessage.getMessageInteger();
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//Create the SWT widget.//
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setSwtWidget(new org.eclipse.swt.widgets.TrayItem(SwtViewContext.getSingleton().getDisplay().getSystemTray(), style));
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getSwtWidget().setData(this);
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shell = new Shell(SwtViewContext.getSingleton().getDisplay());
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}//if//
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break;
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}//case//
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case MESSAGE_SET_IS_VISIBLE: {
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isVisibleHolder.setValue(viewMessage.getMessageData());
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break;
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}//case//
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case MESSAGE_SET_TOOL_TIP_TEXT: {
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toolTipTextHolder.setValue(viewMessage.getMessageData());
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break;
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}//case//
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case MESSAGE_SET_IMAGE: {
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imageHolder.setValue(viewMessage.getMessageData());
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break;
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}//case//
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case MESSAGE_SET_SYNCHRONIZE_SELECTIONS: {
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synchronizeSelections = ((Boolean) viewMessage.getMessageData()).booleanValue();
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break;
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}//case//
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case MESSAGE_ADD_SELECTION_LINK: {
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LinkInfo info = (LinkInfo) viewMessage.getMessageData();
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selectionLinkage.add(new LinkData(getComponent(info.getComponent()), info.getTarget(), info.getData(), info.isBoolean(), info.invertLogic(), info.nullValue()));
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break;
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}//case//
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default: {
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result = super.internalProcessMessage(viewMessage);
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}//case//
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}//switch//
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return result;
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}//internalProcessMessage()//
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/**
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* Gets this component's assigned tool tip text.
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* @return The tool tip for this component.
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*/
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public String getToolTipText() {
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return (String) toolTipTextHolder.getValue();
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}//getToolTipText()//
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/**
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* Sets this component's assigned tool tip text.
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* @param toolTipText The tool tip for this component.
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*/
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public void setToolTipText(String toolTipText) {
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if(!Comparator.equals(toolTipText, getSwtTrayItem().getToolTipText())) {
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getSwtTrayItem().setToolTipText(toolTipText);
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}//if//
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}//setToolTipText()//
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}//TrayItem//
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