Java Code Examples for java.awt.MouseInfo#getPointerInfo()

/** Handle that this tab was dragged elsewhere, or drag aborted */
private void handleDragDone(final DragEvent event)
{
    final DockItem item = dragged_item.getAndSet(null);
    if (item != null  &&  !event.isDropCompleted())
    {
        // Would like to position new stage where the mouse was released,
        // but event.getX(), getSceneX(), getScreenX() are all 0.0.
        // --> Using MouseInfo, which is actually AWT code
        final Stage other = item.detach();
        final PointerInfo pi = MouseInfo.getPointerInfo();
        if (pi != null)
        {
            final Point loc = pi.getLocation();
            other.setX(loc.getX());
            other.setY(loc.getY());
        }
    }
    event.consume();
}
 

/**
 * Returns the current pointer location.
 *
 * @return The current pointer location.
 */
public static Point getPointerLocation() {
	// XXX: Ensure AWT is not considered to be in headless mode, as
	// otherwise MouseInfo#getPointerInfo() will not work; therefore
	// adjust AWT headless property, if required
	String awtHeadlessPropertyValue = System
			.getProperty(JAVA_AWT_HEADLESS_PROPERTY);
	if (awtHeadlessPropertyValue != null
			&& awtHeadlessPropertyValue != Boolean.FALSE.toString()) {
		System.setProperty(JAVA_AWT_HEADLESS_PROPERTY,
				Boolean.FALSE.toString());
	}
	// retrieve mouse location
	PointerInfo pi = MouseInfo.getPointerInfo();
	java.awt.Point mp = pi.getLocation();

	// restore AWT headless property
	if (awtHeadlessPropertyValue != null) {
		System.setProperty(JAVA_AWT_HEADLESS_PROPERTY,
				awtHeadlessPropertyValue);
	}
	return new Point(mp.x, mp.y);
}
 

/**
 * Create a mouse movement event as if the mouse just
 * moved to its current position.
 * @param c the base swing component to relativize the mouse location
 * @return the mouse event
 */
public static UIMouse createCurrent(Component c) {
	UIMouse m = new UIMouse();
	m.type = UIMouse.Type.MOVE;
	PointerInfo pointerInfo = MouseInfo.getPointerInfo();
	if (pointerInfo != null) {
		Point pm = pointerInfo.getLocation();
		Point pc = new Point(0, 0);
		try {
			pc = c.getLocationOnScreen();
		} catch (IllegalStateException ex) {
			// ignored
		}
		m.x = pm.x - pc.x;
		m.y = pm.y - pc.y;
	}
	return m;
}
 

/**
 * 处理鼠标移动
 */
public void mouseMove(String info) {
    String args[] = info.split(",");
    String x = args[0];
    String y = args[1];
    float px = Float.valueOf(x);
    float py = Float.valueOf(y);

    PointerInfo pinfo = MouseInfo.getPointerInfo(); // 得到鼠标的坐标
    java.awt.Point p = pinfo.getLocation();
    double mx = p.getX(); // 得到当前电脑鼠标的坐标
    double my = p.getY();
    try {
        java.awt.Robot robot = new Robot();
        robot.mouseMove((int) (mx + px), (int) (my + py));
    } catch (AWTException e) {
    }
}
 

public Location getLocation() {
  PointerInfo mp = MouseInfo.getPointerInfo();
  if (mp != null) {
    return new Location(MouseInfo.getPointerInfo().getLocation());
  } else {
    Debug.error("Mouse: not possible to get mouse position (PointerInfo == null)");
    return null;
  }
}
 

private Point getCurrentCursorLocation() {
    Point res = null;
    PointerInfo pi = MouseInfo.getPointerInfo();
    if( null != pi ) {
        res = pi.getLocation();
    }
    return res;
}
 

private Rectangle getScreenBounds() {
    Rectangle res = null;
    PointerInfo pi = MouseInfo.getPointerInfo();
    if( null != pi ) {
        GraphicsDevice gd = pi.getDevice();
        if( gd != null ) {
            GraphicsConfiguration gc = gd.getDefaultConfiguration();
            if( gc != null ) {
                res = gc.getBounds();
            }
        }
    }
    return res;
}
 

/** Workaround for JDK bug 6663119, it ensures that first item in submenu
 * is correctly selected during keyboard navigation.
 */
private void ensureSelected () {
    if (menu.getMenuComponentCount() <=0) {
        return;
    }
    
    Component first = menu.getMenuComponent(0);
    if (!(first instanceof JMenuItem)) {
        return;
    }
    PointerInfo pointerInfo = MouseInfo.getPointerInfo();
    if (pointerInfo == null) {
        return; // probably a mouseless computer
    }
    Point loc = pointerInfo.getLocation();
    SwingUtilities.convertPointFromScreen(loc, menu);
    MenuElement[] selPath =
            MenuSelectionManager.defaultManager().getSelectedPath();
    
    // apply workaround only when mouse is not hovering over menu
    // (which signalizes mouse driven menu traversing) and only
    // when selected menu path contains expected value - submenu itself 
    if (!menu.contains(loc) && selPath.length > 0 && 
            menu.getPopupMenu() == selPath[selPath.length - 1]) {
        // select first item in submenu through MenuSelectionManager
        MenuElement[] newPath = new MenuElement[selPath.length + 1];
        System.arraycopy(selPath, 0, newPath, 0, selPath.length);
        JMenuItem firstItem = (JMenuItem)first;
        newPath[selPath.length] = firstItem;
        MenuSelectionManager.defaultManager().setSelectedPath(newPath);
    }
}
 

protected Point getMouseLoc() {
	// I observed a null PointerInfo after unplugging a second monitor
	PointerInfo pointerInfo = MouseInfo.getPointerInfo();
	if (pointerInfo == null)
		return null;
	Point p = pointerInfo.getLocation();
	SwingUtilities.convertPointFromScreen(p, zoomedComponent);
	return p;
}
 

public int[] getPosition(int x, int y) {
	int[] xy = new int[2];
	if (x < 0 && y < 0) {
		PointerInfo a = MouseInfo.getPointerInfo();
		Point c = graphComponent.getLocationOnScreen();
		Point b = a.getLocation();
		x = (int)(b.getX() - c.getX());
		y = (int)(b.getY() - c.getY());
	}	
	if (x<0) x = 0;
	if (y<0) y = 0;
	xy[0] = x;
	xy[1] = y;
	return xy;
}
 

/**
 * Detect the preferred screen by where the mouse is the moment the method
 * is called. This is for multi-monitor support.
 *
 * @return GraphicsEnvironment of the current screen
 */
private static GraphicsConfiguration detectScreen() {
	PointerInfo pointer = MouseInfo.getPointerInfo();
	if (pointer != null) {
		return pointer.getDevice().getDefaultConfiguration();
	}
	return null;
}
 

/**
 * Returns the current location of the mouse cursor.<br>
 * On Windows if the workstation is locked (the login screen is displayed), the mouse location is not available
 * and <code>null</code> is returned. Also if a mouse is not present, <code>null</code> is returned.
 * @return the current location of the mouse cursor.
 */
private Point getMouseLocation() {
	final PointerInfo pointerInfo = MouseInfo.getPointerInfo();
	if ( pointerInfo == null ) // Mouse not present?
		return null;
	
	final Point location = pointerInfo.getLocation();
	
	// Some big random number is returned if the workstation is locked on Windows
	if ( location.x < -20000 || location.x > 20000 || location.y < -20000 || location.y > 20000 )
		return null;
	
	return location;
}
 

@Override public RTCode runDetails(final RTObject myEnclosedScope) {
	final RTDynamicScope activationRecord = RunTimeEnvironment.runTimeEnvironment_.currentDynamicScope();
	final PointerInfo pointerInfo = MouseInfo.getPointerInfo();
	final RTPointerInfoObject retval = new RTPointerInfoObject(pointerInfo);
	
	addRetvalTo(activationRecord);
	activationRecord.setObject("ret$val", retval);
	
	return super.nextCode();
}
 

public void init() {
	frame = new JFrame("MHISoft FastCopy " + UI.version);
	frame.setContentPane(layoutPanel1);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	//progressBar1.setVisible(false);
	progressBar1.setMaximum(100);
	progressBar1.setMinimum(0);

	progressPanel.setVisible(false);
	//frame.setPreferredSize(new Dimension(1200, 800));
	frame.setPreferredSize(new Dimension(UserPreference.getInstance().getDimensionX(), UserPreference.getInstance().getDimensionY()));

	frame.pack();

	/*position it*/
	//frame.setLocationRelativeTo(null);  // *** this will center your app ***
	PointerInfo a = MouseInfo.getPointerInfo();
	Point b = a.getLocation();
	int x = (int) b.getX();
	int y = (int) b.getY();
	frame.setLocation(x + 100, y);

	btnHelp.setBorder(null);

	frame.setVisible(true);


	componentsList = ViewHelper.getAllComponents(frame);
	setupFontSpinner();
	ViewHelper.setFontSize(componentsList, UserPreference.getInstance().getFontSize());



}
 

private static void testMouseInfo() {
    // call the getPointerInfo() before graphics devices initialization
    MouseInfo.getPointerInfo();
}