Java – 在双显示器上移动未修饰的程序

我做了一个未修饰的Java程序。

我在双显示器上工作。

但是当我尝试在第二台显示器上移动程序时，它不起作用..

这是截图说明

所以我有2个类：

Main.java类：

package undecorated; import java.awt.CardLayout; import java.awt.Container; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.sql.SQLException; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JRadioButtonMenuItem; public class Main extends JFrame implements ActionListener, MouseListener { private static final long serialVersionUID = 1L; private static java.sql.Connection connexion = null; private JMenuItem itemSeDeconnecter; private JMenuItem itemAPropos; private JMenuItem itemQuitter; private JRadioButtonMenuItem itemJour; private JRadioButtonMenuItem itemMois; private JRadioButtonMenuItem itemAnnee; private JButton close; private JButton reduire; private JButton punaise; private JButton punaiseEpingler; private JLabel logo; private JMenuBar barreMenus; protected CardLayout vues; protected Container conteneur; /** * Constructeur de la vue principale * * @param modele * @param controleur * @throws SQLException * @throws ClassNotFoundException */ public Main() throws ClassNotFoundException, SQLException { super(); barreMenus = new JMenuBar(); JMenu menuFichier = new JMenu("Files"); barreMenus.add(menuFichier); this.setUndecorated(true); // retirer bordure Windows/Mac // this.setAlwaysOnTop(true); // Forcer au premier plan this.setTitle("NEWS"); // Image sur la barre des taches // this.setSize(720, 300); this.setMinimumSize(new Dimension(300, 300)); this.setSize(405, 370); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(EXIT_ON_CLOSE); this.vues = new CardLayout(2, 2); this.conteneur = this.getContentPane(); this.conteneur.setLayout(this.vues); ComponentMover cm = new ComponentMover(this,barreMenus); this.setJMenuBar(barreMenus); this.setVisible(true); } @Override public void mouseClicked(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseEntered(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mousePressed(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseReleased(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub } public static void main(String[] args) throws ClassNotFoundException, SQLException{ Main main = new Main(); } } 

类ComponentMover.java：

 package undecorated; import java.awt.Component; import java.awt.Cursor; import java.awt.Dimension; import java.awt.GraphicsEnvironment; import java.awt.Insets; import java.awt.Point; import java.awt.Rectangle; import java.awt.Window; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JComponent; import javax.swing.SwingUtilities; public class ComponentMover extends MouseAdapter { private Insets dragInsets = new Insets(0, 0, 0, 0); private Dimension snapSize = new Dimension(1, 1); private Insets edgeInsets = new Insets(0, 0, 0, 0); private boolean changeCursor = true; private boolean autoLayout = false; private Class destinationClass; private Component destinationComponent; private Component destination; private Component source; private Point pressed; private Point location; private Cursor originalCursor; private boolean autoscrolls; private boolean potentialDrag; /** * Constructor for moving individual components. The components must be * regisetered using the registerComponent() method. */ public ComponentMover() { } /** * Constructor to specify a Class of Component that will be moved when * drag events are generated on a registered child component. The events * will be passed to the first ancestor of this specified class. * * @param destinationClass the Class of the ancestor component * @param component the Components to be registered for forwarding * drag events to the ancestor Component. */ public ComponentMover(Class destinationClass, Component... components) { this.destinationClass = destinationClass; registerComponent( components ); } /** * Constructor to specify a parent component that will be moved when drag * events are generated on a registered child component. * * @param destinationComponent the component drage events should be forwareded to * @param components the Components to be registered for forwarding drag * events to the parent component to be moved */ public ComponentMover(Component destinationComponent, Component... components) { this.destinationComponent = destinationComponent; registerComponent( components ); } /** * Get the auto layout property * * @return the auto layout property */ public boolean isAutoLayout() { return autoLayout; } /** * Set the auto layout property * * @param autoLayout when true layout will be invoked on the parent container */ public void setAutoLayout(boolean autoLayout) { this.autoLayout = autoLayout; } /** * Get the change cursor property * * @return the change cursor property */ public boolean isChangeCursor() { return changeCursor; } /** * Set the change cursor property * * @param changeCursor when true the cursor will be changed to the * Cursor.MOVE_CURSOR while the mouse is pressed */ public void setChangeCursor(boolean changeCursor) { this.changeCursor = changeCursor; } /** * Get the drag insets * * @return the drag insets */ public Insets getDragInsets() { return dragInsets; } /** * Set the drag insets. The insets specify an area where mouseDragged * events should be ignored and therefore the component will not be moved. * This will prevent these events from being confused with a * MouseMotionListener that supports component resizing. * * @param dragInsets */ public void setDragInsets(Insets dragInsets) { this.dragInsets = dragInsets; } /** * Get the bounds insets * * @return the bounds insets */ public Insets getEdgeInsets() { return edgeInsets; } /** * Set the edge insets. The insets specify how close to each edge of the parent * component that the child component can be moved. Positive values means the * component must be contained within the parent. Negative values means the * component can be moved outside the parent. * * @param edgeInsets */ public void setEdgeInsets(Insets edgeInsets) { this.edgeInsets = edgeInsets; } /** * Remove listeners from the specified component * * @param component the component the listeners are removed from */ public void deregisterComponent(Component... components) { for (Component component : components) component.removeMouseListener( this ); } /** * Add the required listeners to the specified component * * @param component the component the listeners are added to */ public void registerComponent(Component... components) { for (Component component : components) component.addMouseListener( this ); } /** * Get the snap size * * @return the snap size */ public Dimension getSnapSize() { return snapSize; } /** * Set the snap size. Forces the component to be snapped to * the closest grid position. Snapping will occur when the mouse is * dragged half way. */ public void setSnapSize(Dimension snapSize) { if (snapSize.width < 1 || snapSize.height < 1) throw new IllegalArgumentException("Snap sizes must be greater than 0"); this.snapSize = snapSize; } /** * Setup the variables used to control the moving of the component: * * source - the source component of the mouse event * destination - the component that will ultimately be moved * pressed - the Point where the mouse was pressed in the destination * component coordinates. */ @Override public void mousePressed(MouseEvent e) { source = e.getComponent(); int width = source.getSize().width - dragInsets.left - dragInsets.right; int height = source.getSize().height - dragInsets.top - dragInsets.bottom; Rectangle r = new Rectangle(dragInsets.left, dragInsets.top, width, height); if (r.contains(e.getPoint())) setupForDragging(e); } private void setupForDragging(MouseEvent e) { source.addMouseMotionListener( this ); potentialDrag = true; // Determine the component that will ultimately be moved if (destinationComponent != null) { destination = destinationComponent; } else if (destinationClass == null) { destination = source; } else // forward events to destination component { destination = SwingUtilities.getAncestorOfClass(destinationClass, source); } pressed = e.getLocationOnScreen(); location = destination.getLocation(); if (changeCursor) { originalCursor = source.getCursor(); source.setCursor( Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR) ); } // Making sure autoscrolls is false will allow for smoother dragging of // individual components if (destination instanceof JComponent) { JComponent jc = (JComponent)destination; autoscrolls = jc.getAutoscrolls(); jc.setAutoscrolls( false ); } } /** * Move the component to its new location. The dragged Point must be in * the destination coordinates. */ @Override public void mouseDragged(MouseEvent e) { Point dragged = e.getLocationOnScreen(); int dragX = getDragDistance(dragged.x, pressed.x, snapSize.width); int dragY = getDragDistance(dragged.y, pressed.y, snapSize.height); int locationX = location.x + dragX; int locationY = location.y + dragY; // Mouse dragged events are not generated for every pixel the mouse // is moved. Adjust the location to make sure we are still on a // snap value. while (locationX < edgeInsets.left) locationX += snapSize.width; while (locationY  d.width) locationX -= snapSize.width; while (locationY + destination.getSize().height + edgeInsets.bottom > d.height) locationY -= snapSize.height; // Adjustments are finished, move the component destination.setLocation(locationX, locationY); } /* * Determine how far the mouse has moved from where dragging started * (Assume drag direction is down and right for positive drag distance) */ private int getDragDistance(int larger, int smaller, int snapSize) { int halfway = snapSize / 2; int drag = larger - smaller; drag += (drag < 0) ? -halfway : halfway; drag = (drag / snapSize) * snapSize; return drag; } /* * Get the bounds of the parent of the dragged component. */ private Dimension getBoundingSize(Component source) { if (source instanceof Window) { GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment(); Rectangle bounds = env.getMaximumWindowBounds(); return new Dimension(bounds.width, bounds.height); } else { return source.getParent().getSize(); } } /** * Restore the original state of the Component */ @Override public void mouseReleased(MouseEvent e) { if (!potentialDrag) return; source.removeMouseMotionListener( this ); potentialDrag = false; if (changeCursor) source.setCursor( originalCursor ); if (destination instanceof JComponent) { ((JComponent)destination).setAutoscrolls( autoscrolls ); } // Layout the components on the parent container if (autoLayout) { if (destination instanceof JComponent) { ((JComponent)destination).revalidate(); } else { destination.validate(); } } } } 

任何的想法 ？