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/*******************************************************************************
* Copyright (c) 2004, 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.jface.tests.viewers.interactive;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.ILazyContentProvider;
import org.eclipse.jface.viewers.Viewer;
/**
* The LazyVirtualTableView is the VirtualTableView with
* lazy content.
*/
public class LazyVirtualTableView extends VirtualTableView {
private List<String> elements;
/**
* Create a new instance of the receiver.
*/
public LazyVirtualTableView() {
super();
initElements();
}
/**
*
*/
private void initElements() {
elements = new ArrayList<String>();
for (int i = 0; i < itemCount; i++) {
elements.add("Element " + String.valueOf(i));
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.tests.viewers.interactive.VirtualTableView#getContentProvider()
*/
protected IContentProvider<Object> getContentProvider() {
return new ILazyContentProvider<Object>() {
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ILazyContentProvider#updateElements(int, int)
*/
public void updateElement(int index) {
viewer.replace(elements.get(index), index);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
//Do Nothing
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer<Object> viewer, Object oldInput, Object newInput) {
// Do nothing.
}
};
}
/* (non-Javadoc)
* @see org.eclipse.jface.tests.viewers.interactive.VirtualTableView#doRemove(java.lang.Object[])
*/
protected void doRemove(String[] selection, int[] selectionIndices) {
for (int i = 0; i < selectionIndices.length; i++) {
int index = selectionIndices[i];
elements.remove(index);
}
super.doRemove(selection, selectionIndices);
}
/* (non-Javadoc)
* @see org.eclipse.jface.tests.viewers.interactive.VirtualTableView#resetInput()
*/
protected void resetInput() {
viewer.setItemCount(itemCount);
super.resetInput();
}
}
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