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/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - Ted Williams - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.ui.memory;
import org.eclipse.cdt.dsf.debug.internal.provisional.model.IMemoryBlockUpdatePolicyProvider;
import org.eclipse.debug.core.model.IMemoryBlock;
import org.eclipse.debug.ui.contexts.DebugContextEvent;
import org.eclipse.debug.ui.contexts.IDebugContextListener;
import org.eclipse.debug.ui.memory.IMemoryRendering;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuCreator;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.events.MenuAdapter;
import org.eclipse.swt.events.MenuEvent;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
/**
*
* @since 2.0 Moved to different package, exists since 1.0.
*/
public class SelectUpdatePolicyAction implements IMenuCreator, IViewActionDelegate, IDebugContextListener, IActionDelegate2 {
private IAction fAction = null;
private IMemoryBlock fMemoryBlock = null;
@Override
public void dispose() {
// do nothing
}
@Override
public void runWithEvent(IAction action, Event event) {
// do nothing
}
class SelectPolicy extends Action {
String fID;
String fDescription;
public SelectPolicy(String id, String description) {
fID = id;
fDescription = description;
}
@Override
public String getText() {
return fDescription;
}
@Override
public void run() {
((IMemoryBlockUpdatePolicyProvider) fMemoryBlock).setUpdatePolicy(fID);
}
}
@Override
public Menu getMenu(Control parent) {
// Never called
return null;
}
protected IAction getAction() { return fAction; }
@Override
public void init(IViewPart view) {
}
@Override
public void init(IAction action) {
fAction = action;
action.setMenuCreator(this);
}
@Override
public void run(IAction action) {
// Do nothing, this is a pull-down menu
}
@Override
public void selectionChanged(IAction action, ISelection selection) {
fMemoryBlock = null;
action.setEnabled(false);
if(selection instanceof IStructuredSelection)
{
if(((IStructuredSelection) selection).getFirstElement() instanceof IMemoryBlock)
{
fMemoryBlock = (IMemoryBlock) ((IStructuredSelection) selection).getFirstElement();
action.setMenuCreator(this);
action.setEnabled(true);
}
else if(((IStructuredSelection) selection).getFirstElement() instanceof IMemoryRendering)
{
fMemoryBlock = ((IMemoryRendering) ((IStructuredSelection) selection).getFirstElement()).getMemoryBlock();
action.setMenuCreator(this);
action.setEnabled(true);
}
}
}
@Override
public void debugContextChanged(DebugContextEvent event) {
}
@Override
public Menu getMenu(Menu parent) {
Menu menu = new Menu(parent);
menu.addMenuListener(new MenuAdapter() {
@Override
public void menuShown(MenuEvent e) {
Menu m = (Menu)e.widget;
MenuItem[] items = m.getItems();
for (int i=0; i < items.length; i++) {
items[i].dispose();
}
fillMenu(m);
}
});
return menu;
}
private void fillMenu(Menu menu) {
if(fMemoryBlock instanceof IMemoryBlockUpdatePolicyProvider)
{
IMemoryBlockUpdatePolicyProvider blockPolicy = (IMemoryBlockUpdatePolicyProvider) fMemoryBlock;
String currentPolicy = blockPolicy.getUpdatePolicy();
String policies[] = blockPolicy.getUpdatePolicies();
for(int i = 0; i < policies.length; i++)
{
SelectPolicy action = new SelectPolicy(policies[i], blockPolicy.getUpdatePolicyDescription(policies[i]));
ActionContributionItem item = new ActionContributionItem(action);
action.setChecked(policies[i].equals(currentPolicy));
item.fill(menu, -1);
}
}
}
}
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