Java SunToolkit.checkAndSetPolicy方法代码示例

import sun.awt.SunToolkit; //导入方法依赖的package包/类
private void init(GraphicsConfiguration gc) {
    GraphicsEnvironment.checkHeadless();

    syncLWRequests = systemSyncLWRequests;

    weakThis = new WeakReference<Window>(this);
    addToWindowList();

    setWarningString();
    this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
    this.visible = false;

    gc = initGC(gc);

    if (gc.getDevice().getType() !=
        GraphicsDevice.TYPE_RASTER_SCREEN) {
        throw new IllegalArgumentException("not a screen device");
    }
    setLayout(new BorderLayout());

    /* offset the initial location with the original of the screen */
    /* and any insets                                              */
    Rectangle screenBounds = gc.getBounds();
    Insets screenInsets = getToolkit().getScreenInsets(gc);
    int x = getX() + screenBounds.x + screenInsets.left;
    int y = getY() + screenBounds.y + screenInsets.top;
    if (x != this.x || y != this.y) {
        setLocation(x, y);
        /* reset after setLocation */
        setLocationByPlatform(locationByPlatformProp);
    }

    modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
    disposerRecord = new WindowDisposerRecord(appContext, this);
    sun.java2d.Disposer.addRecord(anchor, disposerRecord);

    SunToolkit.checkAndSetPolicy(this);
}
 

import sun.awt.SunToolkit; //导入方法依赖的package包/类
private void readObject(ObjectInputStream s)
    throws ClassNotFoundException, IOException, HeadlessException
{
    GraphicsEnvironment.checkHeadless();

    java.io.ObjectInputStream.GetField fields =
        s.readFields();

    ModalityType localModalityType = (ModalityType)fields.get("modalityType", null);

    try {
        checkModalityPermission(localModalityType);
    } catch (AccessControlException ace) {
        localModalityType = DEFAULT_MODALITY_TYPE;
    }

    // in 1.5 or earlier modalityType was absent, so use "modal" instead
    if (localModalityType == null) {
        this.modal = fields.get("modal", false);
        setModal(modal);
    } else {
        this.modalityType = localModalityType;
    }

    this.resizable = fields.get("resizable", true);
    this.undecorated = fields.get("undecorated", false);
    this.title = (String)fields.get("title", "");

    blockedWindows = new IdentityArrayList<>();

    SunToolkit.checkAndSetPolicy(this);

    initialized = true;

}
 

import sun.awt.SunToolkit; //导入方法依赖的package包/类
private void init(String title, GraphicsConfiguration gc) {
    this.title = title;
    SunToolkit.checkAndSetPolicy(this);
}
 

import sun.awt.SunToolkit; //导入方法依赖的package包/类
/**
 * Constructs an initially invisible <code>Dialog</code> with the
 * specified owner <code>Window</code>, title and modality.
 *
 * @param owner the owner of the dialog. The owner must be an instance of
 *     {@link java.awt.Dialog Dialog}, {@link java.awt.Frame Frame}, any
 *     of their descendents or <code>null</code>
 * @param title the title of the dialog or <code>null</code> if this dialog
 *     has no title
 * @param modalityType specifies whether dialog blocks input to other
 *    windows when shown. <code>null</code> value and unsupported modality
 *    types are equivalent to <code>MODELESS</code>
 *
 * @exception java.lang.IllegalArgumentException if the <code>owner</code>
 *     is not an instance of {@link java.awt.Dialog Dialog} or {@link
 *     java.awt.Frame Frame}
 * @exception java.lang.IllegalArgumentException if the <code>owner</code>'s
 *     <code>GraphicsConfiguration</code> is not from a screen device
 * @exception HeadlessException when
 *     <code>GraphicsEnvironment.isHeadless()</code> returns <code>true</code>
 * @exception SecurityException if the calling thread does not have permission
 *     to create modal dialogs with the given <code>modalityType</code>
 *
 * @see java.awt.Dialog.ModalityType
 * @see java.awt.Dialog#setModal
 * @see java.awt.Dialog#setModalityType
 * @see java.awt.GraphicsEnvironment#isHeadless
 * @see java.awt.Toolkit#isModalityTypeSupported
 *
 * @since 1.6
 */
public Dialog(Window owner, String title, ModalityType modalityType) {
    super(owner);

    if ((owner != null) &&
        !(owner instanceof Frame) &&
        !(owner instanceof Dialog))
    {
        throw new IllegalArgumentException("Wrong parent window");
    }

    this.title = title;
    setModalityType(modalityType);
    SunToolkit.checkAndSetPolicy(this);
    initialized = true;
}
 

import sun.awt.SunToolkit; //导入方法依赖的package包/类
/**
 * Constructs an initially invisible {@code Dialog} with the
 * specified owner {@code Window}, title and modality.
 *
 * @param owner the owner of the dialog. The owner must be an instance of
 *     {@link java.awt.Dialog Dialog}, {@link java.awt.Frame Frame}, any
 *     of their descendants or {@code null}
 * @param title the title of the dialog or {@code null} if this dialog
 *     has no title
 * @param modalityType specifies whether dialog blocks input to other
 *    windows when shown. {@code null} value and unsupported modality
 *    types are equivalent to {@code MODELESS}
 *
 * @exception java.lang.IllegalArgumentException if the {@code owner}
 *     is not an instance of {@link java.awt.Dialog Dialog} or {@link
 *     java.awt.Frame Frame}
 * @exception java.lang.IllegalArgumentException if the {@code owner}'s
 *     {@code GraphicsConfiguration} is not from a screen device
 * @exception HeadlessException when
 *     {@code GraphicsEnvironment.isHeadless()} returns {@code true}
 * @exception SecurityException if the calling thread does not have permission
 *     to create modal dialogs with the given {@code modalityType}
 *
 * @see java.awt.Dialog.ModalityType
 * @see java.awt.Dialog#setModal
 * @see java.awt.Dialog#setModalityType
 * @see java.awt.GraphicsEnvironment#isHeadless
 * @see java.awt.Toolkit#isModalityTypeSupported
 *
 * @since 1.6
 */
public Dialog(Window owner, String title, ModalityType modalityType) {
    super(owner);

    if ((owner != null) &&
        !(owner instanceof Frame) &&
        !(owner instanceof Dialog))
    {
        throw new IllegalArgumentException("Wrong parent window");
    }

    this.title = title;
    setModalityType(modalityType);
    SunToolkit.checkAndSetPolicy(this);
    initialized = true;
}