[WIP] Implement single wire cable

[martinrieder]

DRAFT implementation of

• [feature] Single wire cable drawn without table  #376

[kvid]

I suggest a different name:

Suggested change

	show_colorname: bool = True
	show_wirecolor_text: bool = True

Alternatively show_color_text, but then someone might expect it to also affect showing the cable.color (jacket color) text. Do you want that?

I suggest text instead of name because the text might be different text representations of the colors, depending on options.color_mode.

[martinrieder]

I am not sure if we are on the same page here. In a single-core cable, the color of the wire and the jacket would be identical. Anyway thanks for mentioning this, because it needs to apply to multi-core cables as well.

IMO neither text nor name is needed. In order to keep it intuitive, I consider the following for alignment with the other show_ switches:

cables:
  w:
    color: BK           # jacket color box, omit this to hide it all
    show_color: plain   # only hide the text from jacket color box
    show_color: text    # only show the text and hide the bgcolor

    colors: [GY]        # wire color (list), omit this for defaults
    show_colors: plain  # hide the color text from individual wires
    show_colors: text   # only show the text without wire coloring

[kvid]

This increases the code complexity slightly, but it seems easier to read, and hopefully is easier to understand as well.

I assume you'll also allow the values True for showing everything and False for showing nothing.

With None as default value for show_colors, you can set it in __post_init__() default plain for your single-core cable use case and True otherwise.

PS: Maybe we in a future separate PR will consider collecting all show_* switches like this:

    show:
      color: text
      colors: True
      wirecount: False