Create, select, and delete image view presets

[annehaley]

This PR adds a widget for Image View Presets on the righthand side of the image controls.
The user doe the following:

1. select from existing presets to apply one
2. use the plus button to name and save the current state as a new preset
3. delete the selected preset

Requesting @manthey to take a look, since this will probably need a few iterations.

[manthey]

Is there any way to close the "new preset" after it has been expanded? Maybe clicking the plus again would hide it. It feel like once you start creating a present you are stuck doing so.

[annehaley]

Is there any way to close the "new preset" after it has been expanded? Maybe clicking the plus again would hide it. It feel like once you start creating a present you are stuck doing so.

Yes, I can do that. Changed in 312e6ed

[manthey]

This is an opinion question (not necessarily a problem). I created a preset with a selection. I then decided it wasn't as good as it could be, so I twiddled some settings. To replace an existing preset without recreating the settings manually, I then have to (1) create a new preset with a name I don't want, (2) switch to the old version, (3) delete it, (4) switch to the undesired name, (5) create a new preset with the original name, (6) switch back to the undesired name, (7) delete it.

Obviously, replacing an existing preset should have some warning, but refusing to replace it makes updating a present hard. What if instead when there was a name collision the "Save preset" button changed to "Update preset"?

[manthey]

We should trim the name before comparison and saving it. I made a preset called "foo" and it let me create "foo ", which looks like a name collision.

[annehaley]

Changed in 4ced213

[manthey]

1. I create a preset with some channels selected and one with all channels selected. When I switch between them, it visually looks right, but the check boxes don't clear when channels are deselected.
2. When a preset has all channels selected, the "all" check mark isn't checked.
3. The auto range now looks like 0.002% rather than 0.2%.

[manthey]

Would it be possible to compare the current frame and style values and switch the preset drop down to "Select a preset" when things are changed and switch to a specific preset when they match?

[manthey]

You can't switch back to a preset with spaces at the end of its name.

[manthey]

On a multi-axis preset, I set each axis to a different value and it then render it as if the first axis was the overall frame number and the other axes were 0.

[annehaley]

Obviously, replacing an existing preset should have some warning, but refusing to replace it makes updating a present hard. What if instead when there was a name collision the "Save preset" button changed to "Update preset"?

Good idea. Changed in 4ced213.

[annehaley]

Would it be possible to compare the current frame and style values and switch the preset drop down to "Select a preset" when things are changed and switch to a specific preset when they match?

Added in 7f37a10

[annehaley]

On a multi-axis preset, I set each axis to a different value and it then render it as if the first axis was the overall frame number and the other axes were 0.

Can you give a more specific example? When I try this on multi_all.yml, it works as expected.

[manthey]

On a multi-axis preset, I set each axis to a different value and it then render it as if the first axis was the overall frame number and the other axes were 0.

Can you give a more specific example? When I try this on multi_all.yml, it works as expected.

On DDX58_AXL_EGFR_well2.nd2, I set the following:

Then save the preset and I see