Java SystemUtils.IS_OS_MAC_OSX属性代码示例

/**
 * Creates a FileChooser appropriate for the user's OS.
 *
 * @param parent
 *          The Component over which the FileChooser should appear.
 * @param prefs
 *          A FileConfigure that stores the preferred starting directory of the FileChooser in preferences
 */
public static FileChooser createFileChooser(Component parent, DirectoryConfigurer prefs, int mode) {
  FileChooser fc;
  if (SystemUtils.IS_OS_MAC_OSX) {
    // Mac has a good native file dialog
    fc = new NativeFileChooser(parent, prefs, mode);
  }
  else if (mode == FILES_ONLY && SystemUtils.IS_OS_WINDOWS) {
    // Window has a good native file dialog, but it doesn't support selecting directories
    fc = new NativeFileChooser(parent, prefs, mode);
  }
  else {
    // Linux's native dialog is inferior to Swing's
    fc = new SwingFileChooser(parent, prefs, mode);
  }
  return fc;
}
 

private boolean tryConvertingInMemory(Reference<BufferedImage> ref) {
  /*
   * Having an OutOfMemoryException while converting in memory is
   * apparently catastrophic on Apple's Java 6 JVM (and possibly also
   * on their Java 5 JVM as well). In-memory tiling also uses far more
   * memory than it should on Apple's Java 6 JVM due to
   * Graphics2D.drawImage making an intermediate copy of the image data.
   * Hence, we ensure that when using Java 5 or 6 on Mac OS X, we never
   * try in-memory conversion for images which can't comfortably have
   * three copies existing simultaneously in memory.
   */
  return !SystemUtils.IS_OS_MAC_OSX ||
    (!SystemUtils.IS_JAVA_1_6 && !SystemUtils.IS_JAVA_1_5) ||
    4*ref.obj.getHeight()*ref.obj.getWidth() <=
      Runtime.getRuntime().maxMemory()/4;
}
 

public static void main(String... args) {
    invisible = new JFrame();
    try {
        invisible.setIconImage(ImageIO.read(FileUtil.getResource("icon.png")));
    } catch (IOException e) {
        e.printStackTrace();
    }

    // Our discord-rpc library doesn't support macOS yet
    if (!SystemTray.isSupported() || !Desktop.isDesktopSupported() || SystemUtils.IS_OS_MAC_OSX) { // We do this because if there is no sys-tray icon users can't terminate the program, which would be bad
        JOptionPane.showMessageDialog(null, "Your platform isn't supported currently!", "Unsupported platform!", JOptionPane.ERROR_MESSAGE);
        return;
    }

    new Courier();
}
 

public static File getHomeDir() {
// FIXME: creation of VASSAL's home should be moved someplace else, possibly
// to the new Application class when it's merged with the trunk.
    if (homeDir == null) {
      if (SystemUtils.IS_OS_MAC_OSX) {
        homeDir = new File(
          System.getProperty("user.home"), "Library/Application Support/VASSAL"
        );
      }
      else if (SystemUtils.IS_OS_WINDOWS) {
        homeDir = new File(System.getenv("APPDATA") + "/VASSAL");
      }
      else {
        homeDir = new File(System.getProperty("user.home"), ".VASSAL");
      }

      if (!homeDir.exists()) {
// FIXME: What if this fails? This should be done from someplace that
// can signal failure properly.
        homeDir.mkdirs();
      }
    }

    return homeDir;
  }
 

private boolean tryConvertingInMemory(Reference<BufferedImage> ref) {
  /*
   *  Having an OutOfMemoryException while converting in memory is
   * apparently catastrophic on Apple's Java 6 JVM (and possibly also
   * on their Java 5 JVM as well). In-memory tiling also uses far more
   * memory than it should on Apple's Java 6 JVM due to
   * Graphics2D.drawImage making an intermediate copy of the image data.
   * Hence, we ensure that when using Java 5 or 6 on Mac OS X, we never
   * try in-memory conversion for images which can't comfortably have
   * three copies existing simultaneously in memory.
   */
  return !SystemUtils.IS_OS_MAC_OSX ||
    (!SystemUtils.IS_JAVA_1_6 && !SystemUtils.IS_JAVA_1_5) ||
    4*ref.obj.getHeight()*ref.obj.getWidth() <=
      Runtime.getRuntime().maxMemory()/4;
}
 

/**
 * Constructs the operating system specific File path of the JRE cacerts file.
 *
 * @return a File representing the path to the command.
 */
public static File getJRECACerts()
{

    File cacertsFile;

    String cacertsFilepath = "lib" + File.separator + "security" + File.separator + "cacerts";

    // For IBM's JDK 1.2
    if ( SystemUtils.IS_OS_AIX )
    {
        cacertsFile = new File( SystemUtils.getJavaHome() + "/", cacertsFilepath );
    }
    else if ( SystemUtils.IS_OS_MAC_OSX ) // what about IS_OS_MAC_OS ??
    {
        cacertsFile = new File( SystemUtils.getJavaHome() + "/", cacertsFilepath );
    }
    else
    {
        cacertsFile = new File( SystemUtils.getJavaHome() + "/", cacertsFilepath );
    }

    return cacertsFile;
}
 

/**
 * Construct with the given JFrame. The utility will allow the frame to be
 * toggled between windowed and fullscreen mode.
 *
 * @param frame
 *            The frame.
 */
public FullscreenUtility(JFrame frame) {
	this.window = frame;

	if (SystemUtils.IS_OS_MAC_OSX) {
		// if we're on a mac, we'll add the fullscreen hint to the window so
		// the standard controls work
		try {
			final Class<?> util = Class.forName("com.apple.eawt.FullScreenUtilities");
			final Class<?> params[] = new Class[] { Window.class, Boolean.TYPE };
			final Method method = util.getMethod("setWindowCanFullScreen", params);

			method.invoke(util, window, true);
		} catch (final Exception e) {
			// ignore
		}
	}
}
 

static BaseConnection create()
{
    if (SystemUtils.IS_OS_MAC_OSX)
        return new BaseConnectionOsx();

    if (SystemUtils.IS_OS_UNIX)
        return new BaseConnectionUnix();

    if (SystemUtils.IS_OS_WINDOWS)
        return new BaseConnectionWindows();

    throw new IllegalStateException("This OS is not supported");
}
 

@Override
protected boolean isApplicable() {
    final boolean nettyDoesNotSupportMacUnixSockets = SystemUtils.IS_OS_MAC_OSX &&
            ComparableVersion.OS_VERSION.isLessThan("10.12");

    return nettyDoesNotSupportMacUnixSockets && socketFile.exists();
}
 

@Override
protected boolean isApplicable() {
    final boolean nettyDoesSupportMacUnixSockets = SystemUtils.IS_OS_MAC_OSX &&
            ComparableVersion.OS_VERSION.isGreaterThanOrEqualTo("10.12");

    return SystemUtils.IS_OS_LINUX || nettyDoesSupportMacUnixSockets;
}
 

public PlatformDetection() {
  // resolve OS
  if (SystemUtils.IS_OS_WINDOWS) {
    this.os = OS_WINDOWS;
  } else if (SystemUtils.IS_OS_MAC_OSX) {
    this.os = OS_OSX;
  } else if (SystemUtils.IS_OS_SOLARIS) {
    this.os = OS_SOLARIS;
  } else if (SystemUtils.IS_OS_LINUX) {
    this.os = OS_LINUX;
  } else {
    throw new IllegalArgumentException("Unknown operating system " + SystemUtils.OS_NAME);
  }

  // resolve architecture
  Map<String, String> archMap = new HashMap<String, String>();
  archMap.put("x86", ARCH_X86_32);
  archMap.put("i386", ARCH_X86_32);
  archMap.put("i486", ARCH_X86_32);
  archMap.put("i586", ARCH_X86_32);
  archMap.put("i686", ARCH_X86_32);
  archMap.put("x86_64", ARCH_X86_64);
  archMap.put("amd64", ARCH_X86_64);
  archMap.put("powerpc", ARCH_PPC);
  this.arch = archMap.get(SystemUtils.OS_ARCH);
  if (this.arch == null) {
    throw new IllegalArgumentException("Unknown architecture " + SystemUtils.OS_ARCH);
  }
}
 

/**
 * Method allows changing whether this window is displayed in fullscreen or
 * windowed mode.
 *
 * @param fullscreen
 *            true = change to fullscreen, false = change to windowed
 */
public void setFullscreen(boolean fullscreen) {
	if (this.fullscreen != fullscreen) {
		if (SystemUtils.IS_OS_MAC_OSX) {
			setFullscreenOSX(fullscreen);
		} else {
			setFullscreenAWT(fullscreen);
		}
	}
}
 

protected MenuManager createMenuManager() {
  return SystemUtils.IS_OS_MAC_OSX ?
    new MacOSXMenuManager() : new EditorMenuManager();
}
 

protected MenuManager createMenuManager() {
  return SystemUtils.IS_OS_MAC_OSX ?
    new MacOSXMenuManager() : new PlayerMenuManager();
}
 

/** @depricated Use {@link SystemUtils.IS_OS_MAC_OSX} instead */
@Deprecated
public static boolean isMacOSX() {
  return SystemUtils.IS_OS_MAC_OSX;
}