GUI is disabled when opened programmatically

[ianhi]

Due to the _set_enabled behavior if you modify the launch-dev script to have the config be loaded before creating the widget (a reasonable thing to do one when scripting)

from pymmcore_plus import CMMCorePlus
from pathlib import Path

import napari
from useq import MDASequence

core = CMMCorePlus.instance()
core.loadSystemConfiguration(str(Path(__file__).parent / "tests" / "test_config.cfg"))

v = napari.Viewer()
dw, main_window = v.window.add_plugin_dock_widget("napari-micromanager")


sequence = MDASequence(
    channels=["Cy5", {"config": "FITC", "exposure": 50}],
    time_plan={"interval": 2, "loops": 5},
    z_plan={"range": 4, "step": 0.5},
    axis_order="tpcz",
    stage_positions=[(222, 1, 1), (111, 0, 0)],
)

main_window.mda.set_state(sequence)

napari.run()

then the entire GUI is still disabled.

I think the solution is to remove the top level concept of enabled/disabled and push that down to a per widget basis. They should check for the relevant loaded devices at creation and then listen the appropriate signals to (de)activate themselves as approriate.

[tlambert03]

thanks. agreed. let's take another close look at _set_enabled and try to do away with it entirely

[ianhi]

My proposed fix will also involve new signals being added. Which also opens the (maybe thorny) question of where do those signals go. see micro-manager/mmCoreAndDevices#149

[ianhi]

Relevant signals being added to core here: micro-manager/mmCoreAndDevices#163

[fdrgsp]

Closing since this is not happening anymore. Still have an unrelated issue already mentioned in #255.

from pymmcore_plus import CMMCorePlus
from pathlib import Path

import napari
from useq import MDASequence

core = CMMCorePlus.instance()
core.loadSystemConfiguration(str(Path(__file__).parent / "tests" / "test_config.cfg"))

v = napari.Viewer()
dw, main_window = v.window.add_plugin_dock_widget("napari-micromanager")


sequence = MDASequence(
    channels=["Cy5", {"config": "FITC", "exposure": 50}],
    time_plan={"interval": 2, "loops": 5},
    z_plan={"range": 4, "step": 0.5},
    axis_order="tpcz",
    stage_positions=[(222, 1, 1), (111, 0, 0)],
)

main_window._show_dock_widget("MDA")
mda = v.window._dock_widgets.get("MDA").widget()
mda.set_state(sequence)

napari.run()