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/*******************************************************************************
* Copyright (c) 2008 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.ui.internal.preferences;
import java.util.Arrays;
import org.eclipse.help.internal.base.remote.RemoteIC;
import org.eclipse.help.ui.internal.Messages;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
public class RemoteICViewer {
/**
* @param parent
*/
public RemoteICViewer(Composite parent) {
// Create the table
createTable(parent);
// Create and setup the TableViewer
createTableViewer();
tableViewer.setContentProvider(new RemoteICContentProvider());
tableViewer.setLabelProvider(new RemoteICLabelProvider());
// The input for the table viewer is the instance of RemoteICList
remoteICList = new RemoteICList();
tableViewer.setInput(remoteICList);
}
private Table table;
private TableViewer tableViewer;
// Create a RemoteICList and assign it to an instance variable
private RemoteICList remoteICList = new RemoteICList();
// Set the table column property names
private final String NAME_COLUMN = Messages.RemoteICViewer_Name;
private final String LOCATION_COLUMN = Messages.RemoteICViewer_URL;
private final String STATUS_COLUMN = Messages.RemoteICViewer_Enabled;
// Set column names
private String[] columnNames = new String[] {NAME_COLUMN,
LOCATION_COLUMN, STATUS_COLUMN};
/**
* Release resources
*/
public void dispose() {
// Tell the label provider to release its resources
tableViewer.getLabelProvider().dispose();
}
/**
* Create the Table
*/
private void createTable(Composite parent) {
int style = SWT.SINGLE | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL
| SWT.FULL_SELECTION;
table = new Table(parent, style);
GridData gridData = new GridData(GridData.FILL_BOTH);
gridData.grabExcessVerticalSpace = true;
gridData.grabExcessHorizontalSpace = true;
gridData.verticalAlignment = GridData.FILL;
gridData.horizontalAlignment = GridData.FILL;
gridData.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
gridData.heightHint = table.getItemHeight();
table.setLayoutData(gridData);
table.setFont(parent.getFont());
table.setLinesVisible(true);
table.setHeaderVisible(true);
TableColumn column;
// 2nd column with IC name
column =new TableColumn(table, SWT.LEFT);
column.setText(NAME_COLUMN);
column.setWidth(85);
// 3rd column with IC name
column = new TableColumn(table, SWT.LEFT);
column.setText(LOCATION_COLUMN);
column.setWidth(165);
//4th column with IC Status enabled/disabled
column = new TableColumn(table, SWT.CENTER);
column.setText(STATUS_COLUMN);
column.setWidth(60);
}
/**
* Create the TableViewer
*/
private void createTableViewer() {
tableViewer = new TableViewer(table);
tableViewer.setUseHashlookup(true);
tableViewer.setColumnProperties(columnNames);
}
/**
* Proxy for the the RemoteICList which provides content
* for the Table. This class implements IRemoteHelpListViewer interface an
* registers itself with RemoteICList
*/
class RemoteICContentProvider implements IStructuredContentProvider,
IRemoteHelpListViewer {
public void inputChanged(Viewer v, Object oldInput, Object newInput) {
if (newInput != null)
((RemoteICList) newInput).addChangeListener(this);
if (oldInput != null)
((RemoteICList) oldInput).removeChangeListener(this);
}
public void dispose() {
remoteICList.removeChangeListener(this);
}
// Return the remote ICs as an array of Objects
public Object[] getElements(Object parent) {
return remoteICList.getRemoteICs().toArray();
}
public void addRemoteIC(RemoteIC remoteic) {
tableViewer.add(remoteic);
}
public void removeRemoteIC(RemoteIC remoteic) {
tableViewer.remove(remoteic);
}
public void updateRemoteIC(RemoteIC remoteic) {
tableViewer.update(remoteic, null);
}
public void refreshRemoteIC(RemoteIC remoteic, int selectedIndex) {
tableViewer.replace(remoteic, selectedIndex);
}
public void removeAllRemoteICs(Object [] remoteICs)
{
tableViewer.remove(remoteICs);
}
}
/**
* Return the column names in a collection
*
* @return List containing column names
*/
public java.util.List getColumnNames() {
return Arrays.asList(columnNames);
}
/**
* @return currently selected item
*/
public ISelection getSelection() {
return tableViewer.getSelection();
}
/**
* Return the RemoteICList
*/
public RemoteICList getRemoteICList() {
return remoteICList;
}
public TableViewer getTableViewer()
{
return tableViewer;
}
/**
* Return the parent composite
*/
public Control getControl() {
return table.getParent();
}
public Table getTable() {
return table;
}
}
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