How to properly close/stop a Lanterna program?

[Maarten Boekhold]

Hi,

I'm experimenting a bit with Lanterna 3.0.0-beta2, and I'm running some code as a Unit Test inside IntelliJ, basically the equivalent of the very first example in the docs. When I close the SwingTerminalFrame, the Unit Test keeps running. What would be the proper way to shut down:

gui.addWindowAndWait(window)...

on closing of the SwingTerminalFrame?

Maarten

ps. I'm actually experimenting with creating a groovy DSL for this. The Griffon project has one, but that cannot be used stand-alone, only as part of a Griffon project. I've got a minimal example up-and-running, including IDE code completion:

        def terminal = new LanternaTerminalBuilder().build() {
            window {
                panel {
                    border(style: 'singleLine', title: 'Main panel')
                    gridLayout(2)
                    label('My First Little Label')
                }
            }
        }

        terminal.waitFor()

[Martin Berglund]

Hi Maarten,

Is the problem that the AWT thread is not shutting down or is it that your addWindowAndWait is never finishing? If the former, try calling the exit private mode method on the terminal, that should dispose the SwingTerminalFrame (you can also manually call dispose on it). If the latter, just make sure to call close on the window and the method should come return.

Thanks,

Martin

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[Maarten Boekhold]

Hi,

gui.addWindowAndWait(window) never finishes, not even after I (forcebly) close the window by clicking on the close button (top right). How can I detect that?

Maarten

[Maarten Boekhold]

Hi

Basically it seems that if you close the SwingTerminal (SwingTerminalFrame?), the underlying AWT thread is not stopped? I can't find a "windowClosing()" method anywhere in the Lanterna code. Am I supposed to handle this manually/explicitly?

Maarten

[Maarten Boekhold]

To answer myself, set the "defaultCloseOperation" on the SwingTerminal to "WindowConstants.DISPOSE_ON_CLOSE"

Maarten

[Martin Berglund]

Swing works this way. Closing a Swing window doesn't terminate the AWT thread unless you dispose it either through DISPOSE_ON_CLOSE or .dispose().

In Lanterna-space, addWindowAndWait() will block until you call .close() on that window.

Martin