Show progress bar when wrappers are running about bonej2 HOT 5 CLOSED

@ctrueden That sounds very handy, but frankly here I'm just trying to make the UI look like something is happening, so that the user doesn't BoneJ has frozen. In any case most of the action happens inside ops, so the bar wouldn't be updated that often even it worked in finer detail than per subspace.

Is there a way to create a progress bar for a task with unknown number of iterations / time? Just something that darts back and forth while processing happens.

from bonej2.

I think there is opportunity to improve the SciJava core here. The StatusService is a singleton progress bar and message, same as ImageJ1. There is now a TaskService that lets you spawn new tasks and keep track of their progress individually. What I have wanted for a long time is to tie in the tasks to the StatusService, so that you can do something like:

Task task = taskService.createTask("Processing subspaces");
for (int i=0; i<subspaceCount; i++) {
  Task subtask = taskService.createTask("Processing subspace #" + i);
  task.addSubtask(subtask);
}
subspaceProcessor.launch(task); // or launch each subtasks, if multithreaded
statusService.setTask(task);

And then the status bar would reflect the status of the running tasks, including messages and progress, automatically. Some day, the ImageJ UI could even be improved to provide a dropdown details view similar to Eclipse with its subtasks, so that you can see everything currently going on.

The above is very rough off the top of my head—see the org.scijava.download package where I really used the TaskService in practice.

The two things needed to make the above a reality:

1. Adding API to the StatusService to tie in with Tasks.
2. Add API to the Task to allow for nested tasks.

What do you think @rimadoma? Does it make sense?

from bonej2.

Is there a way to create a progress bar for a task with unknown number of iterations / time?

No. ImageJ1 uses its own progress bar implementation which does not have an indeterminate mode, unlike Swing's JProgressBar. And we are stuck with the ImageJ1 UI. The way ImageJ1 handles this is to simply keep updating the status message, with no visible progress bar.

from bonej2.

Maybe we can trick ImageJ1's "Double Progress Bar" into showing an indeterminate cycling dot?

from bonej2.

@imagejan Wow, that's crazy!

Relatedly: digging in the source, I realize I made a mistake: ij.gui.ProgressBar extends java.awt.Canvas—there is no java.awt.ProgressBar. Sorry for steering people wrong there. I edited my message above to correct it.

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