Question

public class Activator implements BundleActivator {

TestFrame testFrame = new TestFrame();

public static JPanel graphPanel;

public void start(BundleContext context) throws Exception {


        graphPanel = cartesianGraphs.getGraphPanel();


        testFrame.getPanel1().add(graphPanel);

        testFrame.setVisible(true);
    } 
}



public class TestFrame extends JFrame {

private static final long serialVersionUID = 1L;

private library kutuphane = null;

private JPanel contentPane;
private JTabbedPane tabbedPane;
private JPanel panel1;
private JButton btn;


public TestFrame() {
    initComponents();
}

private void initComponents() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setBounds(100, 100, 800, 600);
    contentPane = new JPanel();
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    contentPane.setLayout(new BorderLayout(0, 0));
    setContentPane(contentPane);
    contentPane.add(getTabbedPane(), BorderLayout.CENTER);
    contentPane.add(getBtn(), BorderLayout.NORTH);
}



public JPanel getPanel1() {
    if (panel1 == null) {
        panel1 = new JPanel();
        panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS));
    }
    return panel1;
}

private JButton getBtn() {
    if (btn == null) {
        btn = new JButton("Remove All and Add");
        btnTabSil.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {


                TestFrame.this.getPanel1().removeAll();
                Activator.graphPanel.revalidate();

                 // where it throws the exception is below
                TestFrame.this.getPanel1().add(Activator.graphPanel);
                TestFrame.this.revalidate();
                TestFrame.this.repaint();
                TestFrame.this.setVisible(true);
            }
        });
    }
    return btn;
}

}

在上面的激活器类中，我将（JPanel） graphpanel 添加到（JPannel） testFrame.getPanel1（）然后使用我在testFrame类中使用的按钮 removeAll（）方法并再次添加静态graphPannel，但我收到了以下错误。

当我调试它时，我看到 GLcanvas失去了同伴。我无法找到解决方案。

线程“Thread-3”中的异常java.lang.RuntimeException： javax.media.opengl.GLException：无法创建临时OpenGL上下文对于设备上下文0xffffffffde01148b at jogamp.common.awt.AWTEDTExecutor.invoke（AWTEDTExecutor.java:58）at at jogamp.opengl.awt.AWTThreadingPlugin.invokeOnOpenGLThread（AWTThreadingPlugin.java:103）在 jogamp.opengl.ThreadingImpl.invokeOnOpenGLThread（ThreadingImpl.java:205）在 javax.media.opengl.Threading.invokeOnOpenGLThread（Threading.java:172）在javax.media.opengl.Threading.invoke（Threading.java:191）at javax.media.opengl.awt.GLCanvas.display（GLCanvas.java:449）at at grafik.view.grafik.Gcontroller.draw（Gcontroller.java:169）at grafik.model.data.Dcontroller.drawAll（Dcontroller.java:272）at grafik.view.Wcontroller.GdataClean（Wcontroller.java:261）at grafik.view.WThread.run（WThread.java:57）引起： javax.media.opengl.GLException：无法创建临时OpenGL上下文对于设备上下文0xffffffffde01148b at jogamp.opengl.windows.wgl.WindowsWGLContext.createImpl（WindowsWGLContext.java:306）在 jogamp.opengl.GLContextImpl.makeCurrentWithinLock（GLContextImpl.java:572）在jogamp.opengl.GLContextImpl.makeCurrent（GLContextImpl.java:485）在 jogamp.opengl.GLDrawableHelper.invokeGLImpl（GLDrawableHelper.java:645）在jogamp.opengl.GLDrawableHelper.invokeGL（GLDrawableHelper.java:594）在javax.media.opengl.awt.GLCanvas $ 8.run（GLCanvas.java:996）at java.awt.event.InvocationEvent.dispatch（未知来源）at java.awt.EventQueue.dispatchEventImpl（未知来源）at java.awt.EventQueue.access $ 300（未知来源）at java.awt.EventQueue $ 3.run（未知来源）at java.awt.EventQueue $ 3.run（未知来源）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（未知来自）java.awt.EventQueue.dispatchEvent（未知来源）at java.awt.EventDispatchThread.pumpOneEventForFilters（未知来源） at java.awt.EventDispatchThread.pumpEventsForFilter（Unknown Source）在java.awt.EventDispatchThread.pumpEventsForHierarchy（未知来自java.awt.EventDispatchThread.pumpEvents（未知来源） at java.awt.EventDispatchThread.pumpEvents（Unknown Source）at java.awt.EventDispatchThread.run（未知来源）

Answer 1

请切换到JOGL 2.3.1。然后，替换＆＃34; javax.media＆＃34; by＆＃34; com.jogamp＆＃34;避免任何编译错误。

当您从其父容器中删除AWT GLCanvas时，它会丢失其对等体并且其OpenGL上下文被销毁。这是使用这种画布时无法避免的。如果这不是所需的行为，请切换到NEWT。

在某些硬件上，某些特定情况下创建另一个上下文可能会失败。如果您仍然使用最新版本的JOGL获得相同的堆栈跟踪，请填写错误报告：http://jogamp.org/wiki/index.php/Jogl_FAQ#Bugreports_.26_Testing

Java swing JPanel示例，GLCanvas错误

1 个答案: