How to use

isClone

method

in

com.jogamp.newt.MonitorDevice

  @Override
  public String toString() {
    boolean preComma = false;
    final StringBuilder sb = new StringBuilder();
    sb.append("Monitor[Id ").append(Display.toHexString(nativeId)).append(" [");
    {
      if( isClone() ) {
        sb.append("clone");
        preComma = true;
      }
      if( isPrimary() ) {
        if( preComma ) {
          sb.append(", ");
        }
        sb.append("primary");
      }
    }
    preComma = false;
    sb.append("], ").append(sizeMM).append(" mm, pixelScale [").append(pixelScale[0]).append(", ")
    .append(pixelScale[1]).append("], viewport ").append(viewportPU).append(" [pixels], ").append(viewportWU)
    .append(" [window], orig ").append(originalMode).append(", curr ")
    .append(currentMode).append(", modeChanged ").append(modeChanged).append(", modeCount ")
    .append(supportedModes.size()).append("]");
    return sb.toString();
  }
}

/**
 * Returns the {@link MonitorDevice} with the highest {@link MonitorDevice#getViewportInWindowUnits() viewport}
 * {@link RectangleImmutable#coverage(RectangleImmutable) coverage} of the given rectangle in window units,
 * which is not a {@link MonitorDevice#isClone() clone}.
 * <p>
 * If no coverage is detected the first {@link MonitorDevice} is returned.
 * </p>
 * @param r arbitrary rectangle in window units
 */
public final MonitorDevice getMainMonitor(final RectangleImmutable r) {
  MonitorDevice res = null;
  float maxCoverage = Float.MIN_VALUE;
  final List<MonitorDevice> monitors = getMonitorDevices();
  final int monitorCount = monitors.size();
  for(int i=0; i<monitorCount; i++) {
    final MonitorDevice monitor = monitors.get(i);
    if( !monitor.isClone() ) {
      final float coverage = monitor.getViewportInWindowUnits().coverage(r);
      if( coverage > maxCoverage ) {
        maxCoverage = coverage;
        res = monitor;
      }
    }
  }
  if( maxCoverage > 0.0f && null != res ) {
    return res;
  }
  return monitors.get(0);
}

for(int i=0; i<monitorCount; i++) {
  final MonitorDevice a = monitors.get(i);
  if( !a.isClone() ) {
    for(int j=i+1; j<monitorCount; j++) {
      final MonitorDevice b = monitors.get(j);
      if( !b.isClone() ) {
        final float coverage = b.getViewport().coverage( a.getViewport() );
        if( FloatUtil.isZero( 1f - coverage, FloatUtil.EPSILON ) ) {

data[idx++] = data.length;
data[idx++] = monitorDevice.getId();
data[idx++] = monitorDevice.isClone() ? 1 : 0;
data[idx++] = monitorDevice.isPrimary() ? 1 : 0;
data[idx++] = monitorDevice.getSizeMM().getWidth();