/*******************************************************************************
* Copyright (c) 2004, 2006 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.ui.tests.performance.layout;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.test.performance.Dimension;
import org.eclipse.ui.WorkbenchException;
import org.eclipse.ui.tests.performance.BasicPerformanceTest;
/**
* Measures the time to resize the widget 10 times, including the time required
* to redraw.
*
* @since 3.1
*/
public class ResizeTest extends BasicPerformanceTest {
private TestWidgetFactory widgetFactory;
private int xIterations = 5;
private int yIterations = 5;
private String tagString;
/**
* Create a new instance of the receiver.
* @param factory
*/
public ResizeTest(TestWidgetFactory factory) {
this(factory, NONE, factory.getName() + " setSize");
}
/**
* Create a new instance of the receiver.
* @param factory
* @param tagging
* @param tag
*/
public ResizeTest(TestWidgetFactory factory, int tagging,
String tag) {
super(factory.getName() + " setSize", tagging);
this.tagString = tag;
this.widgetFactory = factory;
}
/**
* Run the test
*/
@Override
protected void runTest() throws CoreException, WorkbenchException {
tagIfNecessary(tagString, Dimension.ELAPSED_PROCESS);
widgetFactory.init();
final Composite widget = widgetFactory.getControl();
Rectangle initialBounds = widget.getBounds();
final Point maxSize = widgetFactory.getMaxSize();
waitForBackgroundJobs();
processEvents();
for (int j = 0; j < 50; j++) {
startMeasuring();
for (int i = 0; i < 2; i++) {
for (int xIteration = 0; xIteration < xIterations; xIteration += 5) {
for (int yIteration = 0; yIteration < yIterations; yIteration++) {
// Avoid giving the same x value twice in a row in order
// to make it hard to cache
int xSize = maxSize.x
* ((xIteration + yIteration) % xIterations)
/ xIterations;
int ySize = maxSize.y * yIteration / yIterations;
widget.setSize(xSize, ySize);
processEvents();
}
}
}
stopMeasuring();
}
commitMeasurements();
assertPerformance();
widget.setBounds(initialBounds);
widgetFactory.done();
}
}