Java KeyEvent.CTRL_DOWN_MASK屬性代碼示例

private static boolean usableKeyOnMac(int key, int mask) {
    //All permutations fail for Q except ctrl
    if (key == KeyEvent.VK_Q) {
        return false;
    }

    boolean isMeta = ((mask & KeyEvent.META_MASK) != 0) || ((mask & KeyEvent.CTRL_DOWN_MASK) != 0);

    boolean isAlt = ((mask & KeyEvent.ALT_MASK) != 0) || ((mask & KeyEvent.ALT_DOWN_MASK) != 0);

    boolean isOnlyMeta = isMeta && ((mask & ~(KeyEvent.META_DOWN_MASK | KeyEvent.META_MASK)) == 0);

    //Mac OS consumes keys Command+ these keys - the app will never see
    //them, so CTRL should not be remapped for these
    if (isOnlyMeta) {
        return (key != KeyEvent.VK_H) && (key != KeyEvent.VK_SPACE) && (key != KeyEvent.VK_TAB);
    }
    if ((key == KeyEvent.VK_D) && isMeta && isAlt) {
        return false;
    }
    if (key == KeyEvent.VK_SPACE && isMeta && ((mask & KeyEvent.CTRL_MASK) != 0)) {
        // http://lists.apple.com/archives/java-dev/2010/Aug/msg00002.html
        return false;
    }
    return true;
}
 

private int buildKeyModifierMask(boolean ctrl, boolean alt, boolean shift) {
    int _mask = 0;
    if (ctrl) {
        _mask = _mask | KeyEvent.CTRL_DOWN_MASK;
    }
    if (alt) {
        _mask = _mask | KeyEvent.ALT_DOWN_MASK;
    }
    if (shift) {
        _mask = _mask | KeyEvent.SHIFT_DOWN_MASK;
    }
    return _mask;
}
 

public void keyPressed(KeyEvent event) {
    int code = event.getKeyCode();
    switch (code) {
        case KeyEvent.VK_TAB:
            completeAction(event);
            break;
        case KeyEvent.VK_LEFT:
        case KeyEvent.VK_BACK_SPACE:
            backAction(event);
            break;
        case KeyEvent.VK_UP:
            upAction(event);
            break;
        case KeyEvent.VK_DOWN:
            downAction(event);
            break;
        case KeyEvent.VK_ENTER:
            enterAction(event);
            break;
        case KeyEvent.VK_HOME:
            event.consume();
            area.setCaretPosition(startPos);
            break;
        case KeyEvent.VK_D:
            if ((event.getModifiersEx() & KeyEvent.CTRL_DOWN_MASK) != 0) {
                event.consume();
                inputJoin.send(Channel.LINE, EMPTY_LINE);
            }
            break;
    }

    if (completePopup.isVisible() && code != KeyEvent.VK_TAB
            && code != KeyEvent.VK_UP && code != KeyEvent.VK_DOWN)
        completePopup.setVisible(false);
}
 

protected @Override boolean processKeyBinding(KeyStroke ks,
                                KeyEvent e,
                                int condition,
                                boolean pressed) {
    if (Utilities.isMac()) {
        int mods = e.getModifiers();
        boolean isCtrl = (mods & KeyEvent.CTRL_MASK) != 0;
        boolean isAlt = (mods & KeyEvent.ALT_MASK) != 0;
        if (isAlt && (e instanceof MarkedKeyEvent)) {
            mods = mods & ~ KeyEvent.CTRL_MASK;
            mods = mods & ~ KeyEvent.CTRL_DOWN_MASK;
            mods |= KeyEvent.ALT_MASK;
            mods |= KeyEvent.ALT_DOWN_MASK;
            
            KeyEvent newEvent = new MarkedKeyEvent (
                (Component) e.getSource(), e.getID(), 
                e.getWhen(), mods, e.getKeyCode(), e.getKeyChar(), 
                e.getKeyLocation());
            
            KeyStroke newStroke = null;
            if( null != ks ) {
                newStroke = e.getID() == KeyEvent.KEY_TYPED ?
                    KeyStroke.getKeyStroke (ks.getKeyChar(), mods) :
                    KeyStroke.getKeyStroke (ks.getKeyCode(), mods,
                    !ks.isOnKeyRelease());
            }
            
            boolean result = super.processKeyBinding (newStroke, 
                newEvent, condition, pressed);
            
            if (newEvent.isConsumed()) {
                e.consume();
            }
            return result;
        } else if (!isAlt) {
            return super.processKeyBinding (ks, e, condition, pressed);
        } else {
            return false;
        }
    } else {
        return super.processKeyBinding (ks, e, condition, pressed);
    }                     
}
 

public static void main(String[] args) throws Exception {
    if (! SystemTray.isSupported()) {
        System.out.println("SystemTray not supported on the platform under test. " +
                "Marking the test passed");
    } else {
        if (System.getProperty("os.name").toLowerCase().startsWith("win"))
            System.err.println("Test can fail if the icon hides to a tray icons pool" +
                    "in Windows 7, which is behavior by default.\n" +
                    "Set \"Right mouse click\" -> \"Customize notification icons\" -> " +
                    "\"Always show all icons and notifications on the taskbar\" true " +
                    "to avoid this problem. Or change behavior only for Java SE tray " +
                    "icon and rerun test.");

        System.out.println(System.getProperty("os.arch"));
        if (System.getProperty("os.name").indexOf("Sun") != -1 &&
                System.getProperty("os.arch").indexOf("sparc") != -1) {
            keyTypes = new int[]{
                    KeyEvent.VK_SHIFT,
                    KeyEvent.VK_CONTROL,
                    KeyEvent.VK_META
            };

            keyNames = new String[]{
                    "SHIFT",
                    "CONTROL",
                    "META"
            };
            keyMasks = new int[]{
                    KeyEvent.SHIFT_DOWN_MASK,
                    KeyEvent.CTRL_DOWN_MASK,
                    KeyEvent.META_DOWN_MASK
            };
        }

        if (SystemTrayIconHelper.isOel7()) {
            System.out.println("OEL 7 doesn't support click modifiers in " +
                    "systray. Skipped");
            return;
        }

        new TrayIconEventModifiersTest().doTest();
    }
}