Simple RAP performance test

SpeedTest.Java

/*******************************************************************************
 * Copyright (c) 2011 EclipseSource and others. All rights reserved.
 ******************************************************************************/

import org.eclipse.rwt.internal.widgets.JSExecutor;
import org.eclipse.rwt.lifecycle.IEntryPoint;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.*;


public class SpeedTest implements IEntryPoint {
 
  public final static void activate() {
    JSExecutor.executeJS(
        "( function() {" 
      + "  var measureWrap = function( context, field ) {"
      + "    var orgFunc = context[ field ];"
      + "    context[ field ] = function() {"
      + "      var start = new Date();"
      + "      orgFunc.apply( context, [ arguments[ 0 ], arguments[ 1 ], arguments[ 2 ] ] );"
      + "      var stop = new Date();"
      + "      var diff = stop.getTime() - start.getTime();"
      + "      if( diff > 10 ) {"
      + "        console.log( field + ': ' + diff );"
      + "      }"
      + "    };"
      + "  };"
      + "  measureWrap( org.eclipse.swt.Request.getInstance(), '_handleCompleted' );"
      + "  measureWrap( qx.ui.core.Widget, 'flushGlobalQueues' );"
      + "} )();"
    );
  }
  
  @Override
  public int createUI() {
    final Display display = new Display();
    final Shell shell = new Shell( display );
    shell.setLayout( new GridLayout() );
    Button b1 = new Button( shell, SWT.PUSH );
    b1.setText( "canvasTest" );
    b1.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        Shell canvasShell = new Shell( display );
        canvasShell.setLayout( new FillLayout() );
        canvasShell.setSize( 600, 600 );
        Canvas c = new Canvas( canvasShell, SWT.NONE );
        c.addPaintListener( new PaintListener() {
          public void paintControl( PaintEvent event ) {
            for( int i = 0; i < 500; i++ ) {
              int systemColor = i % 2 == 0 ? SWT.COLOR_BLACK : SWT.COLOR_WHITE;
              event.gc.setForeground( display.getSystemColor( systemColor ) );
              event.gc.drawLine( 0, i, 400, i );
            }
            for( int i = 0; i < 500; i++ ) {
              int systemColor = i % 2 == 0 ? SWT.COLOR_BLACK : SWT.COLOR_WHITE;
              event.gc.setForeground( display.getSystemColor( systemColor ) );
              event.gc.drawLine( i, 0, i, 400 );
            }
          }
        } );
        canvasShell.open();
      }
    } );
    Button b2 = new Button( shell, SWT.PUSH );
    b2.setText( "buttonTest" );
    b2.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        Shell buttonShell = new Shell( display );
        buttonShell.setLayout( new GridLayout( 10, true ) );
        buttonShell.setSize( 600, 600 );
        for( int i = 0; i < 200; i++ ) {
          Button b = new Button( buttonShell, SWT.PUSH );
          b.setText( String.valueOf( i ) );
        }
        buttonShell.open();
      }
    } );
    shell.open();
    activate();
    while (!display.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    return 0;
  }

}