OCGV: Add ability to minimize UI

[tig]

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The window border, filter box, and status bar use valuable screen real estate. I'd like to have an option of not having it visible.

I considered having parameters for all of them:

• -NoFrame
• -NoFilter
• -NoStatusBar

But that seems overkill. Instead, just:

• -MinUI

I just pushed a change to Terminal.Gui that will enable hiding the statusbar. Then all that's needed is to change the logic that creates the Window to:

        private Window AddTopLevelWindow()
        {
            // Creates the top-level window to show
            var win = new Window(_applicationData.Title)
            {
                X = _applicationData.MinUi ? -1 : 0,
                Y = _applicationData.MinUi ? -1 : 0,
                // By using Dim.Fill(), it will automatically resize without manual intervention
                Width = Dim.Fill(_applicationData.MinUi ? -1 : 0),
                Height = Dim.Fill(_applicationData.MinUi ? -1 : 1)
            };

            Application.Top.Add(win);
            return win;
        }

[SteveL-MSFT]

I like the idea of being able to customize the UI, however, I wonder if -MinUI is sufficient or over time we end up with lots of switches/parameters? Perhaps accept a hashtable that accepts customization options?

[tig]

I like the idea of being able to customize the UI, however, I wonder if -MinUI is sufficient or over time we end up with lots of switches/parameters? Perhaps accept a hashtable that accepts customization options?

Steve, is there a built-in way for PS cmdlets to take multiple options (OR) in a parameter? E.g.

ocgv -UIOptions A | B | C

[TylerLeonhardt]

@tig it can accept an array.

ocgv -HideUIElement Filter,Frame,foo,bar

The type of the parameter HideUIElement can be an enum array so tab completion "just works"

[tig]

Based on this feedback I will revisit this PR using HideUIElement as the parameter and implement flags as suggested.

But, I will include a All in the enum...

[TylerLeonhardt]

I'm not married to the name HideUIElement but I do think this kind of parameter seems pretty cool. I like adding All and None where None is the default value.

[tig]

Or,

iocgv -UI [All*, None, Filter, Headers, Frame, StatusBar]

Where All is default.

[TylerLeonhardt]

hmm... I'm not sure. If we go with -UI and then we add another thing to the enum, it wouldn't show up and I'm not sure if that's a good thing or a bad thing because I would want new things to be visible first so the user can see the new capability.

[RokeJulianLockhart]

Actually, I would love the -NoFrame, -NoFilter, and -NoStatusBar that were proposed. I very frequently desire some of those but not others.

[tig]

Fixed in #166