/*
* Copyright (c) 2004-2011 Marco Maccaferri 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:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.internal.markets;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.dialogs.PropertyPage;
import org.eclipsetrader.core.instruments.ISecurity;
import org.eclipsetrader.core.internal.markets.Market;
import org.eclipsetrader.core.markets.IMarket;
import org.eclipsetrader.core.markets.IMarketService;
import org.eclipsetrader.ui.internal.UIActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
public class MembersPage extends PropertyPage {
private Button showMembers;
private Button showUnlisted;
private CheckboxTableViewer members;
public MembersPage() {
setTitle("Members");
noDefaultAndApplyButton();
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createContents(Composite parent) {
Composite content = new Composite(parent, SWT.NONE);
GridLayout gridLayout = new GridLayout(2, false);
gridLayout.marginWidth = gridLayout.marginHeight = 0;
gridLayout.verticalSpacing = 0;
content.setLayout(gridLayout);
initializeDialogUnits(content);
showMembers = new Button(content, SWT.RADIO);
showMembers.setText("Show members only");
showMembers.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1));
showMembers.setSelection(true);
showMembers.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
refreshSelection();
}
});
showUnlisted = new Button(content, SWT.RADIO);
showUnlisted.setText("Show securities that are not members of other markets");
showUnlisted.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1));
showUnlisted.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
refreshSelection();
}
});
members = CheckboxTableViewer.newCheckList(content, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
members.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
((GridData) members.getControl().getLayoutData()).heightHint = members.getTable().getItemHeight() * 15 + members.getTable().getBorderWidth() * 2;
((GridData) members.getControl().getLayoutData()).verticalIndent = 5;
members.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
return ((ISecurity) element).getName();
}
});
members.setContentProvider(new ArrayContentProvider());
members.setSorter(new ViewerSorter());
members.addFilter(new ViewerFilter() {
@Override
public boolean select(Viewer viewer, Object parentElement, Object element) {
if (showMembers.getSelection()) {
Market market = (Market) getElement().getAdapter(Market.class);
return market.hasMember((ISecurity) element);
}
else {
for (IMarket market : getMarkets()) {
if (market != getElement()) {
if (market.hasMember((ISecurity) element)) {
return false;
}
}
}
}
return true;
}
});
members.setInput(UIActivator.getDefault().getRepositoryService().getSecurities());
if (getElement() != null) {
Market market = (Market) getElement().getAdapter(Market.class);
if (market != null) {
members.setCheckedElements(market.getMembers());
}
}
return content;
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#isValid()
*/
@Override
public boolean isValid() {
return true;
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#performOk()
*/
@Override
public boolean performOk() {
if (isControlCreated() && getElement() != null) {
Market market = (Market) getElement().getAdapter(Market.class);
if (market != null) {
Object[] checked = members.getCheckedElements();
ISecurity[] securities = new ISecurity[checked.length];
System.arraycopy(checked, 0, securities, 0, checked.length);
market.removeMembers(market.getMembers());
market.addMembers(securities);
}
}
return super.performOk();
}
protected IMarket[] getMarkets() {
BundleContext context = UIActivator.getDefault().getBundle().getBundleContext();
ServiceReference serviceReference = context.getServiceReference(IMarketService.class.getName());
if (serviceReference != null) {
IMarketService marketService = (IMarketService) context.getService(serviceReference);
context.ungetService(serviceReference);
return marketService.getMarkets();
}
return new IMarket[0];
}
protected void refreshSelection() {
members.refresh();
if (getElement() != null) {
Market market = (Market) getElement().getAdapter(Market.class);
if (market != null) {
members.setCheckedElements(market.getMembers());
}
}
}
}