/projects/netbeans-7.3/core.nativeaccess/src/org/netbeans/core/nativeaccess/NativeWindowSystemImpl.java

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package org.netbeans.core.nativeaccess;

import com.sun.jna.platform.WindowUtils;
import java.awt.Shape;
import java.awt.Window;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.Icon;
import org.netbeans.core.windows.nativeaccess.NativeWindowSystem;
import org.openide.util.Utilities;


/**
 * Implementation of NativeWindowSystem based on JNA library.
 * 
 * @author S. Aubrecht
 */
@org.openide.util.lookup.ServiceProvider(service=org.netbeans.core.windows.nativeaccess.NativeWindowSystem.class)
public class NativeWindowSystemImpl extends NativeWindowSystem {

    private static final Logger LOG = Logger.getLogger(NativeWindowSystemImpl.class.getName());

    public NativeWindowSystemImpl() {
    }

    @Override
    public boolean isWindowAlphaSupported() {
        if( Utilities.isMac() ) {
            String version = System.getProperty("java.version"); //NOI18N
            if( null != version && version.startsWith("1.7" ) ) //NOI18N
                return false;
        }
        boolean res = false;
        try {
            res = WindowUtils.isWindowAlphaSupported();
        } catch( ThreadDeath td ) {
            throw td;
        } catch (UnsatisfiedLinkError e) {
            // E.g. "Unable to load library 'X11': libX11.so: cannot open shared object file: No such file or directory"
            // on headless build machine (missing libx11-dev.deb)
            LOG.log(Level.FINE, null, e);
        } catch( Throwable e ) {
            LOG.log(Level.INFO, null, e);
        }
        return res;
    }

    private static boolean is32Bit() {
        String osarch = System.getProperty("os.arch"); //NOI18N
        for (String x : new String[]{"x86", "i386", "i486", "i586", "i686"}) { //NOI18N
            if (x.equals(osarch)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public void setWindowAlpha(Window w, float alpha) {
        try {
            WindowUtils.setWindowAlpha(w, alpha);
        } catch( ThreadDeath td ) {
            throw td;
        } catch( Throwable e ) {
            LOG.log(Level.INFO, null, e);
        }
    }

    @Override
    public void setWindowMask(Window w, Shape mask) {
        try {
            WindowUtils.setWindowMask(w, mask);
        } catch( ThreadDeath td ) {
            throw td;
        } catch( Throwable e ) {
            LOG.log(Level.INFO, null, e);
        }
    }

    @Override
    public void setWindowMask(Window w, Icon mask) {
        try {
            WindowUtils.setWindowMask(w, mask);
        } catch( ThreadDeath td ) {
            throw td;
        } catch( Throwable e ) {
            LOG.log(Level.INFO, null, e);
        }
    }
}