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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 org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.ViewPart;
/**
* The is a test VirtualTableView of the support for SWT.VIRTUAL in JFace.
*
* @since 3.1
*/
public class VirtualTableView extends ViewPart {
TableViewer viewer;
int itemCount = 10000;
/**
* Create a new instance of the receiver.
*/
public VirtualTableView() {
super();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
*/
public void createPartControl(Composite parent) {
viewer = new TableViewer(parent, SWT.VIRTUAL);
viewer.setContentProvider(getContentProvider());
viewer.setInput(this);
viewer.setItemCount(itemCount);
Composite buttonComposite = new Composite(parent,SWT.NONE);
buttonComposite.setLayout(new GridLayout());
Button resetInput = new Button(buttonComposite,SWT.PUSH);
resetInput.setText("Reset input");
resetInput.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(org.eclipse.swt.events.SelectionEvent e){
resetInput();
}
});
Button delete = new Button(buttonComposite, SWT.PUSH);
delete.setText("Delete selection");
delete.addSelectionListener(new SelectionAdapter() {
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
*/
public void widgetSelected(SelectionEvent e) {
Object[] selection = ((IStructuredSelection) viewer.getSelection()).toArray();
doRemove(selection, viewer.getTable().getSelectionIndices());
}
});
}
protected void doRemove(Object[] selection, int[] selectionIndices) {
viewer.remove(selection);
}
/**
* Get the content provider for the receiver.
*
* @return IContentProvider
*/
protected IContentProvider getContentProvider() {
return new IStructuredContentProvider() {
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
// Nothing to do here.
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements(Object inputElement) {
String[] elements = new String[itemCount];
for (int i = 0; i < itemCount; i++) {
elements[i] = "Element " + String.valueOf(i);
}
return elements;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
* java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput,
Object newInput) {
// Nothing to do here.
}
};
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.IWorkbenchPart#setFocus()
*/
public void setFocus() {
viewer.getTable().setFocus();
}
/**
* Reset the input of the view.
*/
protected void resetInput() {
viewer.setInput(this);
}
}
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