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Thread: Is a modal JDialog possible in this scenario?

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    Default Is a modal JDialog possible in this scenario?

    I have the below spinet of code which basically consists of a panel with a progress bar. The progress bar indicates the completion rate for the numerical computations executed in RunComputations(). It takes several seconds for the computations to be completed. RunComputations is called after an instance has been created.

    I would like this this panel (basin) to be modal but I can't. JVM stops at dialog.setVisible(true) and waits for an action on behalf of the user. Is there anyway to have a modal panel in these circumstances?

    *********************
    //this code invokes Basin Panel

    Basin basin = new Basin(); //JVM does not proceed after this point.
    basin.RunComputations();


    //Basin panel is called by the above code

    public class Basin extends javax.swing.JPanel {
    private JDialog dialog;

    Basin(){

    dialog = new JDialog(fr,"Running Model...",true);
    dialog.add(this);
    dialog.setSize(430,130);
    dialog.setModalityType(ModalityType.APPLICATION_MO DAL); //If MODELESS is used here my program works as expected
    dialog.setDefaultCloseOperation(JFrame.DO_NOTHING_ ON_CLOSE);
    dialog.setVisible(true); //JVM stops here.

    }

    void RunComputations(){
    //Computations are run and progress bar is updated
    }


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    Default Re: Is a modal JDialog possible in this scenario?

    The definition of modal is (roughly): takes and keeps program focus until the user supplies information or cancels the dialog. So what you've described you want conflicts with what is. Maybe I don't understand what you said.

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    Default Re: Is a modal JDialog possible in this scenario?

    Thanks for your response. Are there any approaches? I would like to keep the panel modal (inside JDialog) while the computations are performed and the progress bar is updated. As far as I know java does not offer any other alternative for a modal panel.

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    Default Re: Is a modal JDialog possible in this scenario?

    Are you trying to have two separate parts of the program execute at the same time? Using Threads would help you do that.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Is a modal JDialog possible in this scenario?

    But in a Swing application, use SwingWorker.

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