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The Java Developers Almanac 1.4Order this book from Amazon. |
e738. Getting the JFrame of a ComponentIn order to find the frame that contains a component, it is necessary to walk up the component's parents until the frame is encountered.SwingUtilities.getRoot() is a convenience method that finds the
frame.
This example implements an action that finds and hides the frame of the component that triggered the action. See also e743 Creating a JButton Component. // Create an action Action action = new AbstractAction("Action Label") { // This method is called when the action is triggered public void actionPerformed(ActionEvent evt) { Component c = (Component)evt.getSource(); // Get the frame Component frame = SwingUtilities.getRoot(c); // Hide the frame frame.setVisible(false); } };
e734. Exiting an Application When a JFrame Is Closed e735. Disabling the Close Button on a JFrame e736. Creating a Borderless Window e737. Showing a Dialog Box © 2002 Addison-Wesley. |