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POJTabbedPane addTab in wrapper method not working
 

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  1. POJTabbedPane addTab in wrapper method not working
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    <p>As part of my Diploma in Software Dev we have to create a Java GUI to manage a Soccer League. My group has produced numerous JPanels that in the click-through prototype we put into JTabbedPane. This worked fine up until now where I'm moving them into separate files and into a MVC layout.</p> <p>I'm using a window class to hold the top level JFrame and menubar and adding in the tabbed panes to that. This works fine in the constructor but when I remove them from the constructor and try to add them from the Bootstrap via the <code>Window.attachTabbedPanel(String name, JPanel panel)</code> it doesn't display but querying <code>tabbedPane.getTabCount()</code> display an incrementing number of tabs.</p> <p>Here's a stripped back set of code: The Bootstrap file:</p> <pre><code>public class Bootstrap { private Window mainWindow; public Bootstrap() { //Window class is our containing JFrame and JMenuBar mainWindow = new Window(); //Load up our view classes TestTab tab1 = new TestTab(); TestTab tab2 = new TestTab(); //Attach them mainWindow.attachTabbedPanel("Tab1", tab1.getScreen()); mainWindow.attachTabbedPanel("Tab2", tab2.getScreen()); } // Bootstrap() public gui.Window getWindow(){ return mainWindow; } } // Bootstrap </code></pre> <p>This is called by the Main file:</p> <pre><code>public class Main { public static void main(String[] args) { Bootstrap RunMVC = new Bootstrap(); gui.Window mainWindow = RunMVC.getWindow(); mainWindow.run(); } // main() } // Main </code></pre> <p>The problem starts here at the Window class, I've added in a <code>In Constructor</code> tab to check I haven't stuffed up the tabbedPane but it works fine at that point.</p> <pre><code>public class Window { private JFrame frame; private JMenuBar menuBarMain; private JMenu mnFile; private JTabbedPane tabbedPane; private int count; /** * Create the application. */ public Window() { //Build the frame frame = new JFrame(); frame.setBounds(100, 100, 1280, 800); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getContentPane().setLayout(new CardLayout(0, 0)); //End Build frame TestTab conTab = new TestTab(); //Add the tabbed pane to hold the top level screens tabbedPane = new JTabbedPane(JTabbedPane.TOP); frame.getContentPane().add(tabbedPane, "name_1"); tabbedPane.addTab("In Consructor", conTab.getScreen()); count = 1; } public void attachTabbedPanel(String name, JPanel panel){ System.out.println("Window: adding Jpanel name: "+name); System.out.println("panel is a: "+panel); tabbedPane.addTab(name, panel); tabbedPane.updateUI(); System.out.println("Number of tabs: "+tabbedPane.getTabCount()); System.out.println("Last Tab .isEnabledAt() "+tabbedPane.isEnabledAt(count++)); tabbedPane.updateUI(); } /** * Launch the window. */ public void run() { EventQueue.invokeLater(new Runnable() { public void run() { try { Window window = new Window(); window.frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } } </code></pre> <p>And lastly the Panel:</p> <pre><code>public class TestTab { private JPanel screen; private JLabel lblSeason; private JButton btnEdit; private JLabel lblRounds; public JPanel getScreen() { return screen; } /** * Initialize the contents of the frame. */ public TestTab() { screen = new JPanel(); screen.setLayout(new MigLayout("", "[8%,right][10%,left][8%,right][10%,left][grow][50%]", "[][][grow]")); lblSeason = new JLabel("Test"); screen.add(lblSeason, "flowx,cell 0 0"); btnEdit = new JButton("Edit Test"); screen.add(btnEdit, "cell 5 0,alignx right"); lblRounds = new JLabel("More Testing"); screen.add(lblRounds, "cell 0 1,alignx left"); } } </code></pre>
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