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POUpdate JFrame maximized bounds while keeping it maximized
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  1. POUpdate JFrame maximized bounds while keeping it maximized
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    copied!<p>Is it possible to update the maxized bounds of a JFrame (visibly) after calling setMaximizedBounds() while the JFrame is maximized?</p> <pre><code>// I do not have access to / cannot change the following lines JFrame frame = new JFrame(); frame.setVisible(true); frame.setExtendedState(JFrame.MAXIMIZED_BOTH); // frame fills the whole screen at this point // My code: frame.setMaximizedBounds(newBounds); </code></pre> <p>I currently do the following to update the JFrame location and size:</p> <pre><code>frame.setExtendedState(JFrame.NORMAL); frame.setExtendedState(JFrame.MAXIMIZED_BOTH); </code></pre> <p>but this causes the window to visually get restored and then maximized again, but with the correct maximized bounds.</p> <p>I tried <code>frame.doLayout()</code> and <code>frame.getContentPane().doLayout()</code> but the frame does not update to the new bounds.</p> <p><strong>EDIT</strong> SSCCE:</p> <p>Adapted from <a href="https://stackoverflow.com/q/7403584/1196618">here</a>.</p> <p>As mentioned in the comments the JFrame is actually created and initialized by the NetBeans RCP so I cannot override it (as is proposed <a href="https://stackoverflow.com/a/6422995/1196618">here</a>) as a workaround for <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4737788" rel="nofollow noreferrer">Java bug 4737788</a> (which I am trying to create a workaround for). The workaround works but I would like to avoid the (hack) restore &amp; maximize to update the frame.</p> <pre><code>import java.awt.FlowLayout; import java.awt.Frame; import java.awt.GraphicsConfiguration; import java.awt.Rectangle; import java.awt.event.ActionEvent; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JFrame; import sun.java2d.SunGraphicsEnvironment; public class MaximizedBoundsTest { public static void main(String[] args) { final JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(800, 600); frame.setLayout(new FlowLayout()); frame.add(new JButton(new AbstractAction("Fix Maximized Bounds") { @Override public void actionPerformed(ActionEvent e) { // Workaround for http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4737788 // to take Windows taskbar into account GraphicsConfiguration config = frame.getGraphicsConfiguration(); Rectangle usableBounds = SunGraphicsEnvironment.getUsableBounds(config.getDevice()); frame.setMaximizedBounds(usableBounds); // Hack to update frame size &amp; location (is there a better way to do this?) frame.setExtendedState(Frame.NORMAL); frame.setExtendedState(Frame.MAXIMIZED_BOTH); } })); frame.setExtendedState(Frame.MAXIMIZED_BOTH); frame.setUndecorated(true); frame.setVisible(true); } } </code></pre>
 

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