下面列出了javax.swing.SwingUtilities#getRootPane ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public void setVisible(boolean visible) {
boolean oldVisible = isVisible();
super.setVisible(visible);
JRootPane rootPane = SwingUtilities.getRootPane(this);
if ((rootPane != null) && (isVisible() != oldVisible)) {
if (isVisible()) {
Component focusOwner = KeyboardFocusManager.
getCurrentKeyboardFocusManager().getPermanentFocusOwner();
if ((focusOwner != null) &&
SwingUtilities.isDescendingFrom(focusOwner, rootPane)) {
recentFocusOwner = focusOwner;
}
rootPane.getLayeredPane().setVisible(false);
requestFocusInWindow();
} else {
rootPane.getLayeredPane().setVisible(true);
if (recentFocusOwner != null) {
recentFocusOwner.requestFocusInWindow();
}
recentFocusOwner = null;
}
}
}
private void resetState() {
state = STATE_NOOP;
JRootPane pane = SwingUtilities.getRootPane(comp);
glass.setVisible(false);
if (pane != null && oldGlass != null) {
// when clicking results in hidden slide window, pne can be null?
// how to avoid?
JComponent current = (JComponent) pane.getGlassPane();
if (current instanceof GlassPane) {
pane.setGlassPane(oldGlass);
}
}
if( null != comp )
comp.setCursor(null);
oldGlass = null;
startPoint = null;
}
private void leaveBusy() {
myJavaHierarchyTree.setModel(myJavaHierarchyModel);
JRootPane rootPane = SwingUtilities.getRootPane(CDIPanel.this);
if (rootPane != null) {
rootPane.setCursor(Cursor.getDefaultCursor());
}
myFilterTextField.setEnabled(true);
myCaseSensitiveFilterCheckBox.setEnabled(true);
myShowFQNToggleButton.setEnabled(true);
myExpandAllButton.setEnabled(true);
if (myLastFocusedComponent != null) {
if (myLastFocusedComponent.isDisplayable()) {
myLastFocusedComponent.requestFocusInWindow();
}
myLastFocusedComponent = null;
}
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed()) {
// do not manage consumed event
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean dispatchKeyEvent(KeyEvent e) {
if (skippingEvents || e.isConsumed()) return false;
if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_ESCAPE)
if (SwingUtilities.getRootPane(this) != e.getSource()) { // Closing JPopupMenu using the ESC key
e.consume();
if (DEBUG) System.err.println(">>> Closed by ESC"); // NOI18N
ProfilerPopup.this.hide();
return true;
}
return false;
}
@Override
protected boolean processKeyBinding(KeyStroke ks, KeyEvent e, int condition,
boolean pressed)
{
if (e.getKeyCode() == KeyEvent.VK_F1 || e.getKeyCode() == KeyEvent.VK_HELP) {
JComponent rootPane = SwingUtilities.getRootPane(this);
if (rootPane != null) {
rootPane.putClientProperty(ResizablePopup.HELP_COOKIE, Boolean.TRUE);
}
}
return super.processKeyBinding(ks, e, condition, pressed);
}
private void enterBusy() {
myJavaHierarchyTree.setModel(pleaseWaitTreeModel);
JRootPane rootPane = SwingUtilities.getRootPane(CDIPanel.this);
if (rootPane != null) {
rootPane.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
}
Window window = SwingUtilities.getWindowAncestor(this);
if (window != null) {
myLastFocusedComponent = window.getFocusOwner();
}
myFilterTextField.setEnabled(false);
myCaseSensitiveFilterCheckBox.setEnabled(false);
myShowFQNToggleButton.setEnabled(false);
myExpandAllButton.setEnabled(false);
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
/**
* {@inheritDoc}
*/
@Override
public void selectInitialValue(JOptionPane op) {
if (initialFocusComponent != null) {
initialFocusComponent.requestFocus();
if (initialFocusComponent instanceof JButton) {
JRootPane root = SwingUtilities.getRootPane(initialFocusComponent);
if (root != null) {
root.setDefaultButton((JButton)initialFocusComponent);
}
}
}
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed()) {
// do not manage consumed event
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
// mnemonic combination, it's consumed, but we need
// set altKeyPressed to false, otherwise after selection
// component by mnemonic combination a menu will be open
altKeyPressed = false;
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed()) {
// do not manage consumed event
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
public boolean dispatchKeyEvent(KeyEvent e) {
if (skippingEvents || e.isConsumed()) return false;
if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_ESCAPE)
if (SwingUtilities.getRootPane(this) != e.getSource()) { // Closing JPopupMenu using the ESC key
e.consume();
if (DEBUG) System.err.println(">>> Closed by ESC"); // NOI18N
ProfilerPopup.this.hide();
return true;
}
return false;
}
public boolean postProcessKeyEvent(KeyEvent ev) {
if(ev.isConsumed()) {
// do not manage consumed event
return false;
}
if (ev.getKeyCode() == KeyEvent.VK_ALT) {
root = SwingUtilities.getRootPane(ev.getComponent());
winAncestor = (root == null ? null :
SwingUtilities.getWindowAncestor(root));
if (ev.getID() == KeyEvent.KEY_PRESSED) {
if (!altKeyPressed) {
altPressed(ev);
}
altKeyPressed = true;
return true;
} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
if (altKeyPressed) {
altReleased(ev);
} else {
MenuSelectionManager msm =
MenuSelectionManager.defaultManager();
MenuElement[] path = msm.getSelectedPath();
if (path.length <= 0) {
WindowsLookAndFeel.setMnemonicHidden(true);
WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
}
}
altKeyPressed = false;
}
root = null;
winAncestor = null;
} else {
altKeyPressed = false;
}
return false;
}
private Point getTruePos(int x, int y) {
JRootPane root = SwingUtilities.getRootPane(window != null ? window : this);
//System.err.println("root insets: " + root.getLocation());
return new Point(x-root.getX(), y-root.getY());
}