Initial commit from SVN.
This commit is contained in:
wcrisman
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/*
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* Copyright (c) 2006,2009 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.ControlEvent;
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import org.eclipse.swt.events.ControlListener;
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import org.eclipse.swt.graphics.Image;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.ExpandItem;
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import com.common.util.IList;
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import com.common.util.LiteHashMap;
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import com.common.util.LiteList;
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import com.foundation.tcv.swt.IExpandBar;
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import com.foundation.tcv.view.ViewMessage;
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public class ExpandBar extends Container implements IExpandBar, Component.IComponentListener, ControlListener {
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/** A mapping of ExpandItem instances indexed by the Component displayed by the item. */
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private LiteHashMap expandItemsByComponentMap = new LiteHashMap(15);
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/** A collection of Component instances which require initialization. */
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private IList pendingItems = new LiteList(10, 50);
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/**
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* ExpandBar constructor.
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*/
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public ExpandBar() {
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super();
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}//ExpandBar()//
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/**
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* Gets the SWT expand bar that represents this expand bar.
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* @return The SWT expand bar providing visualization for this expand bar.
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*/
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public org.eclipse.swt.widgets.ExpandBar getSwtExpandBar() {
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return (org.eclipse.swt.widgets.ExpandBar) getSwtWidget();
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}//getSwtExpandBar()//
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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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//Complete the initialization of the component items since the components should have set themselves up by now.//
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for(int index = 0; index < pendingItems.getSize(); index++) {
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internalAddItem((Component) pendingItems.get(index), -1);
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}//for//
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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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super.internalViewRelease();
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}//internalViewRelease()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.AbstractComponent#internalViewSynchronize()
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*/
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protected void internalViewSynchronize() {
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super.internalViewSynchronize();
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}//internalViewSynchronize()//
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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(getSwtControl() == null) {
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int[] data = (int[]) viewMessage.getMessageData();
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int style = data[1];
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//Link to the parent container.//
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setContainer((Container) getComponent(data[0]));
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getContainer().addComponent(this);
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//Create the SWT widget.//
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setSwtWidget(new org.eclipse.swt.widgets.ExpandBar(getContainer().getSwtParent(), style));
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getSwtWidget().setData(this);
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//If the container has already been initialized then force the parent to re-layout so that this component will appear.//
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if(getContainer().isInitialized()) {
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getContainer().getSwtComposite().layout(true, true);
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}//if//
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}//if//
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break;
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}//case//
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case MESSAGE_ADD_ITEM: {
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int componentNumber = viewMessage.getMessageInteger();
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Component component = (Component) getComponent(componentNumber);
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int index = viewMessage.getMessageSecondaryInteger();
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if(isInitialized()) {
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internalAddItem(component, index);
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}//if//
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else {
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if(index != -1) {
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pendingItems.add(index, component);
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}//if//
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else {
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pendingItems.add(component);
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}//else//
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}//else//
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break;
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}//case//
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case MESSAGE_REMOVE_ITEM: {
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int componentNumber = ((Integer) viewMessage.getMessageData()).intValue();
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Component component = (Component) getComponent(componentNumber);
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if(component != null) {
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ExpandItem expandItem = (ExpandItem) expandItemsByComponentMap.remove(component);
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if(expandItem != null && !expandItem.isDisposed()) {
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//Note: Don't dispose of the image because it comes from the component's container-image property whose lifecycle is managed by the component.//
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expandItem.dispose();
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}//if//
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component.unregisterListener(this);
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}//if//
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break;
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}//case//
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case MESSAGE_REPOSITION_ITEM: {
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int componentNumber = ((int[]) viewMessage.getMessageData())[0];
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int newIndex = ((int[]) viewMessage.getMessageData())[1];
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Component component = (Component) getComponent(componentNumber);
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if(component != null) {
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ExpandItem oldExpandItem = (ExpandItem) expandItemsByComponentMap.remove(component);
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if(oldExpandItem != null && !oldExpandItem.isDisposed()) {
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ExpandItem newExpandItem = new ExpandItem(getSwtExpandBar(), 0, newIndex);
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newExpandItem.setText(oldExpandItem.getText());
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newExpandItem.setImage(oldExpandItem.getImage());
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//SWT does not yet support tool tip text for expand items.//
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//newExpandItem.setToolTipText(oldExpandItem.getToolTipText());
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newExpandItem.setData(oldExpandItem.getData());
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newExpandItem.setControl(oldExpandItem.getControl());
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oldExpandItem.dispose();
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expandItemsByComponentMap.put(component, newExpandItem);
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}//if//
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}//if//
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break;
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}//case//
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case MESSAGE_SORT_ITEMS: {
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int startIndex = ((Integer) ((Object[]) viewMessage.getMessageData())[0]).intValue();
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int[] mapping = (int[]) ((Object[]) viewMessage.getMessageData())[1];
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ExpandItem[] oldExpandItems = new ExpandItem[mapping.length];
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int nextIndex = startIndex;
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//Reorder the item items by adding new item items before the old ones.//
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for(int index = 0; index < mapping.length; index++) {
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int oldIndex = nextIndex + index + mapping[index];
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ExpandItem oldExpandItem = getSwtExpandBar().getItem(oldIndex);
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ExpandItem expandItem = new org.eclipse.swt.widgets.ExpandItem(getSwtExpandBar(), 0, index);
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Component component = (Component) oldExpandItem.getData();
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expandItem.setText(oldExpandItem.getText());
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expandItem.setImage(oldExpandItem.getImage());
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//SWT does not yet support tool tip text for expand items.//
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//expandItem.setToolTipText(oldExpandItem.getToolTipText());
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expandItem.setControl(oldExpandItem.getControl());
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expandItem.setData(oldExpandItem.getData());
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oldExpandItems[index] = oldExpandItem;
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expandItemsByComponentMap.put(component, expandItem);
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nextIndex++;
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}//for//
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//Remove the old item items.//
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for(int index = 0; index < oldExpandItems.length; index++) {
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oldExpandItems[index].dispose();
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}//for//
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break;
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}//case//
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case MESSAGE_SET_SPACING: {
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Integer spacing = (Integer) viewMessage.getMessageData();
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if(spacing != null) {
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getSwtExpandBar().setSpacing(spacing.intValue());
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}//if//
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resize();
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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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}//default//
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}//switch//
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return result;
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}//internalProcessMessage()//
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/**
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* Adds an item to the expand bar.
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* @param component The component which will be placed as an expandable item.
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* @param index The index of the expand bar item within the expand bar item set. A value of -1 indicates a new expand bar should be created at the end.
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*/
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protected void internalAddItem(Component component, int index) {
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String title = component.getContainerTitle();
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Image image = component.getContainerImage();
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//SWT does not yet support tool tip text for expand items.//
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//String toolTipText = component.getToolTipText();
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ExpandItem expandItem = null;
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if(index != -1) {
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expandItem = new ExpandItem(getSwtExpandBar(), 0, index);
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}//if//
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else {
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expandItem = new ExpandItem(getSwtExpandBar(), 0);
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}//else//
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expandItem.setText(title == null ? "" : title);
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expandItem.setImage(image);
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//SWT does not yet support tool tip text for expand items.//
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//expandItem.setToolTipText(toolTipText);
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expandItem.setData(component);
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expandItem.setControl(component.getSwtControl());
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expandItemsByComponentMap.put(component, expandItem);
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component.registerListener(this);
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component.getSwtControl().addControlListener(this);
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}//internalAddItem()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.Component.IComponentListener#toolTipTextChanged(com.foundation.tcv.swt.client.Component, java.lang.String)
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*/
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public void toolTipTextChanged(Component component, String newToolTipText) {
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ExpandItem expandItem = (ExpandItem) expandItemsByComponentMap.get(component);
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if(expandItem != null && !expandItem.isDisposed()) {
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//SWT does not yet support tool tip text for expand items.//
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//expandItem.setToolTipText(newToolTipText);
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}//if//
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}//toolTipTextChanged()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.Component.IComponentListener#imageChanged(com.foundation.tcv.swt.client.Component, org.eclipse.swt.graphics.Image)
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*/
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public void imageChanged(Component container, Image image) {
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ExpandItem expandItem = (ExpandItem) expandItemsByComponentMap.get(container);
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if(expandItem != null && !expandItem.isDisposed()) {
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expandItem.setImage(image);
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}//if//
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}//imageChanged()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.Component.IComponentListener#titleChanged(com.foundation.tcv.swt.client.Component, java.lang.String)
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*/
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public void titleChanged(Component container, String newTitle) {
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ExpandItem expandItem = (ExpandItem) expandItemsByComponentMap.get(container);
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if(expandItem != null && !expandItem.isDisposed()) {
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expandItem.setText(newTitle);
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}//if//
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}//titleChanged()//
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/* (non-Javadoc)
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* @see org.eclipse.swt.events.ControlListener#controlMoved(org.eclipse.swt.events.ControlEvent)
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*/
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public void controlMoved(ControlEvent e) {
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}//controlMoved()//
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/* (non-Javadoc)
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* @see org.eclipse.swt.events.ControlListener#controlResized(org.eclipse.swt.events.ControlEvent)
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*/
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public void controlResized(ControlEvent e) {
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//TODO: Is this the right place for this?
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((ExpandItem) expandItemsByComponentMap.get(e.widget.getData())).setHeight(((Control) e.widget).computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
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}//controlResized()//
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/* (non-Javadoc)
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* @see com.foundation.tcv.swt.client.Container#internalLayout()
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*/
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protected void internalLayout() {
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ExpandItem[] items = getSwtExpandBar().getItems();
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//TODO: Is this the right place for this?
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//Set the height of all the expand items.//
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for(int index = 0; index < items.length; index++) {
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items[index].setHeight(items[index].getControl().computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
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}//for//
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super.internalLayout();
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}//internalLayout()//
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}//ExpandBar//
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