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Brainstorm/Foundation TCV SWT Client/src/com/foundation/tcv/swt/client/ToolBar.java

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2014-05-30 10:31:51 -07:00
/*
* Copyright (c) 2006,2009 Declarative Engineering LLC.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Declarative Engineering LLC
* verson 1 which accompanies this distribution, and is available at
* http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
*/
package com.foundation.tcv.swt.client;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import com.common.thread.IRunnable;
import com.common.util.LiteList;
import com.foundation.tcv.client.view.ResourceHolder;
import com.foundation.tcv.model.LinkInfo;
import com.foundation.tcv.swt.IToolBar;
import com.foundation.tcv.view.ViewMessage;
import com.foundation.view.JefImage;
import com.foundation.view.LinkData;
import com.foundation.view.swt.util.SwtUtilities;
public class ToolBar extends Container implements IToolBar {
/** The collection of ToolItem instances contained by the tool bar. */
private LiteList toolItems = new LiteList(10, 20);
/** The collection of Menu instances associated with tool items. */
private LiteList menus = new LiteList(10, 20);
/**
* This tool item can be extended to provide customized tool item behavior.
*/
public static abstract class AbstractToolItem extends AbstractComponent implements IToolBar.IAbstractToolItem {
private Container container = null;
/** Whether this is a stateful item. */
protected boolean isStateful = false;
/** Whether this is a separator. */
protected boolean isSeparator = false;
/** Whether this is a separator. */
protected boolean isDropDown = false;
/** A counter tracking the number of times the component has been told to be disabled. This allows us to disable a container which in turn disables all components. */
private int disabledCounter = 0;
/** A holder for the value of the tool tip text. */
private ResourceHolder toolTipTextHolder = new ResourceHolder(this);
/** A holder for the value of the enabled state flag. */
private ResourceHolder isEnabledHolder = new ResourceHolder(this);
/**
* AbstractToolItem constructor.
*/
public AbstractToolItem() {
}//AbstractToolItem()//
/* (non-Javadoc)
* @see com.foundation.view.IAbstractComponent#getContainer()
*/
public Container getContainer() {
return container;
}//getContainer()//
/* (non-Javadoc)
* @see com.foundation.view.swt.IInternalAbstractComponent#getShell()
*/
public Shell getShell() {
return container != null ? container.getShell() : null;
}//getShell()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalProcessMessage(com.foundation.tcv.view.ViewMessage)
*/
public Object internalProcessMessage(ViewMessage viewMessage) {
Object result = null;
switch(viewMessage.getMessageNumber()) {
case MESSAGE_INITIALIZE: {
if(getSwtToolItem() == null) {
int[] data = (int[]) viewMessage.getMessageData();
int style = data[1];
//Link to the parent container.//
this.container = (Container) getComponent(data[0]);
((ToolBar) getContainer()).addToolItem(this);
//Create the SWT widget.//
setSwtWidget(new org.eclipse.swt.widgets.ToolItem(((ToolBar) getContainer()).getSwtToolBar(), style));
getSwtWidget().setData(this);
isStateful = ((style & STYLE_RADIO) > 0) || ((style & STYLE_CHECK) > 0);
isSeparator = ((style & STYLE_SEPARATOR) > 0);
isDropDown = ((style & STYLE_DROP_DOWN) > 0);
}//if//
break;
}//case//
case MESSAGE_SET_IS_ENABLED: {
isEnabledHolder.setValue(viewMessage.getMessageData());
break;
}//case//
case MESSAGE_SET_TOOL_TIP_TEXT: {
toolTipTextHolder.setValue(viewMessage.getMessageData());
break;
}//case//
default: {
result = super.internalProcessMessage(viewMessage);
}//default//
}//switch//
return result;
}//internalProcessMessage()//
/* (non-Javadoc)
* @see com.foundation.view.swt.AbstractComponent#internalOnLinkInvoked(int, java.lang.Object)
*/
protected void internalOnLinkInvoked(int linkTarget, Object data) {
switch(linkTarget) {
case LINK_TARGET_IS_ENABLED: {
internalSetEnabledState(data != null && data instanceof Boolean ? ((Boolean) data).booleanValue() : false);
break;
}//case//
case LINK_TARGET_TOOL_TIP_TEXT: {
getSwtToolItem().setToolTipText(data instanceof String ? (String) data : "");
break;
}//case//
default: {
super.internalOnLinkInvoked(linkTarget, data);
break;
}//default//
}//switch//
}//internalOnLinkInvoked()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalResourceHolderChanged(com.foundation.tcv.client.view.ResourceHolder, java.lang.Object, java.lang.Object, int)
*/
protected void internalResourceHolderChanged(ResourceHolder resource, Object oldValue, Object newValue, int flags) {
if(resource == toolTipTextHolder) {
getSwtToolItem().setToolTipText((String) newValue);
}//if//
else if(resource == isEnabledHolder) {
internalSetEnabledState(((Boolean) newValue).booleanValue());
//TODO: Determine whether the size will change before resizing. This can help eliminate flashing.
//resize();
}//else if//
else {
super.internalResourceHolderChanged(resource, oldValue, newValue, flags);
}//else//
}//internalOnAssociationChanged()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewRelease()
*/
protected void internalViewRelease() {
toolTipTextHolder.release();
isEnabledHolder.release();
if(!getSwtToolItem().isDisposed()) {
getSwtToolItem().dispose();
}//if//
super.internalViewRelease();
}//internalViewRelease()//
/**
* Gets the swt tool item for this tool item.
* @return The SWT tool item providing visualization for this tool item.
*/
public org.eclipse.swt.widgets.ToolItem getSwtToolItem() {
return (org.eclipse.swt.widgets.ToolItem) getSwtWidget();
}//getSwtToolItem()//
/**
* Performs the actual work of enable or disabling the component.
* @param isEnabled Whether the enabled state should be altered to be enabled, otherwise it is altered to be disabled.
*/
protected void internalSetEnabledState(boolean isEnabled) {
//Some components may not have controls, such as value holders.//
if(getSwtToolItem() != null) {
if(!isEnabled || disabledCounter > 0) {
disabledCounter += !isEnabled ? 1 : -1;
}//if//
if(isEnabled && disabledCounter == 0) {
getSwtToolItem().setEnabled(true);
}//if//
else if(!isEnabled && disabledCounter == 1) {
getSwtToolItem().setEnabled(false);
}//else if//
}//if//
}//internalSetEnabledState()//
/**
* Forces the component to resize and requests that the window layout.
*/
public void resize() {
if(isInitialized()) {
getSwtToolItem().getParent().pack(true);
getSwtToolItem().getParent().getShell().layout(true, true);
}//if//
}//resize()//
}//AbstractToolItem//
/**
* Encapsulates an item in the bar.
*/
public static class ToolItem extends AbstractToolItem implements IToolBar.IToolItem, SelectionListener {
/** The custom control displayed by the tool item. */
private Component control = null;
/** The popup menu displayed when the tool item is a drop down. */
private Menu menu = null;
/** The linkage for the selection. */
private Linkage selectionLinkage = new Linkage();
/** The task that auto synchronizes the selection after a short delay. */
private Task autoSynchronizeSelectionTask = null;
/** Whether the selection state is auto synchronized. */
private boolean autoSynchronizeSelection = true;
/** The delay to be used when auto synchronizing changes to the text. */
private long autoSynchronizeSelectionDelay = 0;
/** Whether the item has a custom width. */
private boolean customWidth = false;
/** The last selection state in the model, known to the component. Used to reduce method calling & round trip messages. */
private boolean selectionState = false;
/** Whether selection notifications to the server will block for a response. */
private boolean blockOnSelections = false;
/** A holder for the value of the text. */
private ResourceHolder textHolder = new ResourceHolder(this);
/** A holder for the value of the image. */
private ResourceHolder imageHolder = new ResourceHolder(this);
/** A holder for the value of the hot image. */
private ResourceHolder hotImageHolder = new ResourceHolder(this);
/** A holder for the value of the disabled image. */
private ResourceHolder disabledImageHolder = new ResourceHolder(this);
/**
* ToolItem constructor.
*/
public ToolItem() {
}//ToolItem()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalProcessMessage(com.foundation.tcv.view.ViewMessage)
*/
public Object internalProcessMessage(ViewMessage viewMessage) {
Object result = null;
switch(viewMessage.getMessageNumber()) {
case MESSAGE_SET_BLOCK_ON_SELECTIONS: {
blockOnSelections = ((Boolean) viewMessage.getMessageData()).booleanValue();
break;
}//case//
case MESSAGE_AUTO_SIZE: {
//Auto calculate the width based on the packed size of the control.//
//TODO: Should we set the control's height to the bar's height?
if(!customWidth && isSeparator && control != null) {
Point size;
control.getSwtControl().pack();
size = control.getSwtControl().computeSize(SWT.DEFAULT, SWT.DEFAULT);
getSwtToolItem().setWidth(size.x);
}//if//
break;
}//case//
case MESSAGE_SET_TEXT: {
textHolder.setValue(viewMessage.getMessageData());
break;
}//case//
case MESSAGE_SET_IMAGE: {
imageHolder.setValue(viewMessage.getMessageData());
break;
}//case//
case MESSAGE_SET_HOT_IMAGE: {
hotImageHolder.setValue(viewMessage.getMessageData());
break;
}//case//
case MESSAGE_SET_DISABLED_IMAGE: {
disabledImageHolder.setValue(viewMessage.getMessageData());
break;
}//case//
case MESSAGE_SET_IS_SELECTED: {
Boolean isSelected = (Boolean) viewMessage.getMessageData();
//Only set the selection if it has changed.//
if(isSelected.booleanValue() != getSwtToolItem().getSelection()) {
getSwtToolItem().setSelection(isSelected.booleanValue());
selectionState = isSelected.booleanValue();
//Send feedback to the server so that it will properly maintain state.//
if(autoSynchronizeSelection) {
sendMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, isSelected);
}//if//
selectionLinkage.invoke(isSelected);
}//if//
break;
}//case//
case MESSAGE_SET_AUTO_SYNCHRONIZE_SELECTION: {
autoSynchronizeSelection = ((Boolean) viewMessage.getMessageData()).booleanValue();
break;
}//case//
case MESSAGE_SET_AUTO_SYNCHRONIZE_SELECTION_DELAY: {
autoSynchronizeSelectionDelay = ((Long) viewMessage.getMessageData()).longValue();
break;
}//case//
case MESSAGE_ADD_SELECTION_LINK: {
LinkInfo info = (LinkInfo) viewMessage.getMessageData();
selectionLinkage.add(new LinkData(getComponent(info.getComponent()), info.getTarget(), info.getData(), info.isBoolean(), info.invertLogic(), info.nullValue()));
break;
}//case//
case MESSAGE_SET_CONTROL: {
int[] data = (int[]) viewMessage.getMessageData();
control = (Component) getComponent(data[0]);
//TODO: If we are already initialized we should swap controls. Currently this could not happen, but we may allow it in the future.
break;
}//case//
case MESSAGE_SET_MENU: {
int[] data = (int[]) viewMessage.getMessageData();
menu = (Menu) getComponent(data[0]);
break;
}//case//
case MESSAGE_SET_WIDTH: {
customWidth = true;
getSwtToolItem().setWidth(((Integer) viewMessage.getMessageData()).intValue());
break;
}//case//
default: {
result = super.internalProcessMessage(viewMessage);
}//default//
}//switch//
return result;
}//internalProcessMessage()//
/* (non-Javadoc)
* @see com.foundation.view.swt.AbstractComponent#internalOnLinkInvoked(int, java.lang.Object)
*/
protected void internalOnLinkInvoked(int linkTarget, Object data) {
switch(linkTarget) {
case LINK_TARGET_SELECTION: {
boolean isSelected = data instanceof Boolean ? ((Boolean) data).booleanValue() : false;
if(isStateful) {
if(isSelected != getSwtToolItem().getSelection()) {
getSwtToolItem().setSelection(isSelected);
selectionChanged(isSelected);
}//if//
}//if//
else {
selectionChanged(true);
}//else//
break;
}//case//
case LINK_TARGET_IMAGE: {
if(getSwtToolItem().getImage() != null) {
getSwtToolItem().getImage().dispose();
}//if//
getSwtToolItem().setImage(data instanceof JefImage ? SwtUtilities.getImage(getSwtToolItem().getDisplay(), (JefImage) data) : null);
resize();
break;
}//case//
case LINK_TARGET_DISABLED_IMAGE: {
if(getSwtToolItem().getDisabledImage() != null) {
getSwtToolItem().getDisabledImage().dispose();
}//if//
getSwtToolItem().setDisabledImage(data instanceof JefImage ? SwtUtilities.getImage(getSwtToolItem().getDisplay(), (JefImage) data) : null);
resize();
break;
}//case//
case LINK_TARGET_ROLLOVER_IMAGE: {
if(getSwtToolItem().getHotImage() != null) {
getSwtToolItem().getHotImage().dispose();
}//if//
getSwtToolItem().setHotImage(data instanceof JefImage ? SwtUtilities.getImage(getSwtToolItem().getDisplay(), (JefImage) data) : null);
resize();
break;
}//case//
case LINK_TARGET_TEXT: {
getSwtToolItem().setText(data instanceof String ? (String) data : "");
resize();
break;
}//case//
default: {
super.internalOnLinkInvoked(linkTarget, data);
break;
}//default//
}//switch//
}//internalOnLinkInvoked()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalResourceHolderChanged(com.foundation.tcv.client.view.ResourceHolder, java.lang.Object, java.lang.Object, int)
*/
protected void internalResourceHolderChanged(ResourceHolder resource, Object oldValue, Object newValue, int flags) {
if(resource == textHolder) {
getSwtToolItem().setText((String) newValue);
resize();
}//if//
else if(resource == imageHolder) {
destroyImage(getSwtToolItem().getImage());
getSwtToolItem().setImage(createImage((JefImage) newValue));
resize();
}//else if//
else if(resource == hotImageHolder) {
destroyImage(getSwtToolItem().getHotImage());
getSwtToolItem().setHotImage(createImage((JefImage) newValue));
resize();
}//else if//
else if(resource == disabledImageHolder) {
destroyImage(getSwtToolItem().getDisabledImage());
getSwtToolItem().setDisabledImage(createImage((JefImage) newValue));
resize();
}//else if//
else {
super.internalResourceHolderChanged(resource, oldValue, newValue, flags);
}//else//
}//internalOnAssociationChanged()//
/* (non-Javadoc)
* @see com.foundation.view.swt.AbstractComponent#internalViewInitialize()
*/
protected void internalViewInitialize() {
getSwtToolItem().addSelectionListener(this);
super.internalViewInitialize();
if(control != null) {
getSwtToolItem().setControl(control.getSwtControl());
}//if//
}//internalViewInitialize()//
/* (non-Javadoc)
* @see com.foundation.view.swt.AbstractComponent#internalViewRelease()
*/
protected void internalViewRelease() {
destroyImage((JefImage) imageHolder.getValue());
destroyImage((JefImage) hotImageHolder.getValue());
destroyImage((JefImage) disabledImageHolder.getValue());
synchronized(this) {
if(autoSynchronizeSelectionTask != null) {
removeTask(autoSynchronizeSelectionTask);
autoSynchronizeSelectionTask = null;
}//if//
}//synchronized//
if(!getSwtToolItem().isDisposed()) {
getSwtToolItem().removeSelectionListener(this);
getSwtToolItem().setControl(null);
}//if//
textHolder.release();
imageHolder.release();
hotImageHolder.release();
disabledImageHolder.release();
super.internalViewRelease();
}//internalViewRelease()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewSynchronize()
*/
protected void internalViewSynchronize() {
super.internalViewSynchronize();
if(!autoSynchronizeSelection) {
boolean selection = getSwtToolItem().getSelection();
if(selectionState != selection) {
selectionState = selection;
sendMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, selection ? Boolean.TRUE : Boolean.FALSE);
}//if//
}//if//
}//internalViewSynchronize()//
/**
* Sets the control used by the tool item.
* @param control The tool item's control.
*/
public void setControl(Component control) {
this.control = control;
}//setControl()//
/* (non-Javadoc)
* @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
*/
public void widgetDefaultSelected(SelectionEvent event) {
widgetSelected(event);
}//widgetDefaultSelected()//
/* (non-Javadoc)
* @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
*/
public void widgetSelected(SelectionEvent event) {
if(isSeparator && control != null) {
//Do nothing.//
//TODO: Do we need to pass this even to the control? Will we even get the event?
}//if//
else if(isDropDown && event.detail == SWT.ARROW) {
Rectangle rect = getSwtToolItem().getBounds();
Point point = new Point(rect.x, rect.y + rect.height);
//Show the drop down menu.//
point = getSwtToolItem().getParent().toDisplay(point);
if(menu != null) {
menu.getSwtMenu().setLocation(point.x, point.y);
menu.getSwtMenu().setVisible(true);
}//if//
}//else if//
else if(isSeparator) {
//Ignore//
}//else if//
else {
selectionChanged(getSwtToolItem().getSelection());
}//else//
}//widgetSelected()//
/**
* Called when the selection is changed in the view control.
* This method updates all bindings and
* @param isSelected Whether the control is selected (stateful controls only).
*/
protected void selectionChanged(final boolean isSelected) {
//Handle the button selection.//
if((blockOnSelections) || (autoSynchronizeSelection)) {
if((!blockOnSelections) && (autoSynchronizeSelectionDelay > 0)) {
//Start a task to send the text to the server after a short delay. This will reduce the overhead of auto synchronizing the selection.//
synchronized(this) {
if(autoSynchronizeSelectionTask != null) {
removeTask(autoSynchronizeSelectionTask);
}//if//
autoSynchronizeSelectionTask = new Task() {
public void execute() {
//Make sure that this task is still valid and is not being superceeded.//
synchronized(ToolItem.this) {
if(autoSynchronizeSelectionTask == this) {
//Cleanup after the task.//
autoSynchronizeSelectionTask = null;
getEventLoop().executeAsync(new IRunnable() {
public Object run() {
sendMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, isSelected ? Boolean.TRUE : Boolean.FALSE);
return null;
}//run()//
});
}//if//
}//synchronized//
}//run()//
};
addTask(autoSynchronizeSelectionTask, autoSynchronizeSelectionDelay);
}//synchronized//
}//if//
else {
if(blockOnSelections) {
sendRoundTripMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, isSelected ? Boolean.TRUE : Boolean.FALSE, null);
}//if//
else {
sendMessage(MESSAGE_VIEW_SYNCHRONIZE_SELECTION, isSelected ? Boolean.TRUE : Boolean.FALSE);
}//else//
}//else//
}//if//
selectionLinkage.invoke(isStateful ? isSelected ? Boolean.TRUE : Boolean.FALSE : null);
}//selectionChanged()//
}//ToolItem//
/**
* ToolBar constructor.
*/
public ToolBar() {
super();
}//ToolBar()//
/**
* Adds a tool item to the bar.
* @param toolItem The item to be added.
*/
protected void addToolItem(AbstractToolItem toolItem) {
toolItems.add(toolItem); //TODO: Is this necessary?
if(isInitialized()) {
//TODO: Initialize the tool item.
//Will the tool item's component already be initilialized?
//Would this ever occur?
}//if//
}//addToolItem()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalProcessMessage(com.foundation.tcv.view.ViewMessage)
*/
public Object internalProcessMessage(ViewMessage viewMessage) {
Object result = null;
switch(viewMessage.getMessageNumber()) {
case MESSAGE_INITIALIZE: {
if(getSwtToolBar() == null) {
int[] data = (int[]) viewMessage.getMessageData();
int style = data[1];
//Link to the parent container.//
setContainer((Container) getComponent(data[0]));
getContainer().addComponent(this);
//Create the SWT widget.//
setSwtWidget(new org.eclipse.swt.widgets.ToolBar(getContainer().getSwtParent(), style));
getSwtWidget().setData(this);
//If the container has already been initialized then force the parent to re-layout so that this component will appear.//
if(getContainer().isInitialized()) {
getContainer().getSwtComposite().layout(true, true);
}//if//
}//if//
break;
}//case//
default: {
result = super.internalProcessMessage(viewMessage);
}//default//
}//switch//
return result;
}//internalProcessMessage()//
/**
* Gets the SWT tool bar that represents this tool bar.
* @return The SWT tool bar providing visualization for this tool bar.
*/
public org.eclipse.swt.widgets.ToolBar getSwtToolBar() {
return (org.eclipse.swt.widgets.ToolBar) getSwtControl();
}//getSwtToolBar()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewInitialize()
*/
protected void internalViewInitialize() {
//Add a listener to force the view to re-layout when the toolbar changes sizes (expands or contracts).//
getSwtToolBar().addListener(SWT.Resize, new Listener() {
public void handleEvent(Event event) {
getSwtToolBar().getParent().layout(true, true);
getSwtToolBar().getParent().redraw();
}//handleEvent()//
});
super.internalViewInitialize();
}//internalViewInitialize()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewRelease()
*/
protected void internalViewRelease() {
super.internalViewRelease();
}//internalViewRelease()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewInitializeAll()
*/
protected void internalViewInitializeAll() {
super.internalViewInitializeAll();
//Initialize all the tool items.//
for(int index = 0; index < toolItems.getSize(); index++) {
((AbstractToolItem) toolItems.get(index)).internalViewInitialize();
}//for//
//Initialize all the menus.//
for(int index = 0; index < menus.getSize(); index++) {
((Menu) menus.get(index)).internalViewInitializeAll();
}//for//
}//internalViewInitializeAll()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewReleaseAll()
*/
protected void internalViewReleaseAll() {
//Release all the tool items.//
for(int index = 0; index < toolItems.getSize(); index++) {
((AbstractToolItem) toolItems.get(index)).internalViewRelease();
}//for//
//Release all the menus.//
for(int index = 0; index < menus.getSize(); index++) {
((Menu) menus.get(index)).internalViewReleaseAll();
}//for//
super.internalViewReleaseAll();
}//internalViewReleaseAll()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewSynchronizeAll()
*/
protected void internalViewSynchronizeAll() {
//Synchronize all the tool items.//
for(int index = 0; index < toolItems.getSize(); index++) {
((AbstractToolItem) toolItems.get(index)).internalViewSynchronize();
}//for//
//Synchronize all the menus.//
for(int index = 0; index < menus.getSize(); index++) {
((Menu) menus.get(index)).internalViewSynchronizeAll();
}//for//
super.internalViewSynchronizeAll();
}//internalViewSynchronizeAll()//
/* (non-Javadoc)
* @see com.foundation.tcv.swt.client.Component#setMenu(com.foundation.tcv.swt.client.Menu)
*/
public void setMenu(Menu menu) {
menus.add(menu);
//A tool bar can have multiple menus associated with it. Each menu is tied to a drop down tool item. Since the tool item is not a control, the menu is linked to the bar instead.//
if((isInitialized()) && (menu != null)) {
menu.internalViewInitializeAll();
}//if//
}//setMenu()//
}//ToolBar//