On Thu, 5 Nov 2020 03:55:33 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> wrote:
>> You need to set decorations for the root pane: >> UIManager.setLookAndFeel(new MetalLookAndFeel()); >> JFrame frame = new JFrame(); >> frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME); >> frame.pack(); >> System.out.println("Layout: " + frame.getRootPane().getLayout()); >> ======== >> Layout: javax.swing.plaf.metal.MetalRootPaneUI$MetalRootLayout@69d9c55 > > I tried with > UIManager.setLookAndFeel(new MetalLookAndFeel()); > JFrame frame = new JFrame(); > frame.setSize(new Dimension(500, 800)); > frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME); > //frame.pack(); > frame.setVisible(true); > System.out.println("Layout: " + > frame.getRootPane().getLayout()); > System.out.println("PreferredSize " + > frame.getRootPane().getPreferredSize()); > but it seems tpWidth and tpHeight what is being changed is the width and > height of MetalTitlePane which seems always comes as 23 for both no matter > what frame size is set, so I guess using any variable will do but logically, > it will be good to use "tpHeight" for height calculation. > If it is believed to continue with same logical but not technical error, I > will close this PR without integrating. The bug submitter said that it is somehow affected his application. So I assume there is a way to trigger this bug in the MetalRootLayout. ------------- PR: https://git.openjdk.java.net/jdk/pull/433