/*******************************************************************************
* Copyright 2012 Geoscience Australia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package au.gov.ga.earthsci.worldwind.common.util;
import java.lang.reflect.Field;
/**
* Utility class for disabling direct draw. This is required to run WorldWind
* without the UI flickering. Currently this is done in the webstart JNLP file,
* but this can be used when running a standalone instance of WorldWind.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class DirectDraw
{
public static void disableDirectDraw()
{
String noddraw = System.getProperty("sun.java2d.noddraw");
if (noddraw == null || !noddraw.equalsIgnoreCase("true"))
{
System.setProperty("sun.java2d.noddraw", "true");
Class<?> windowsFlags = null;
try
{
windowsFlags = Class.forName("sun.awt.WindowsFlags");
}
catch (ClassNotFoundException e1)
{
try
{
windowsFlags = Class.forName("sun.java2d.windows.WindowsFlags");
}
catch (ClassNotFoundException e2)
{
}
}
if (windowsFlags != null)
{
try
{
Field field = windowsFlags.getDeclaredField("ddEnabled");
field.setAccessible(true);
field.set(null, false);
}
catch (Exception e)
{
}
}
}
}
}