Markup Composer

This is a dialogue based user tool to compose a 'markup.rg' user object for a Noteworthy nwctxt file.
The markup.rg user plugin was created by the late NWC virtuoso Rick G.
It's very powerful but also very obscure.

This tool couldn't have been written without the documentation by hmmueller,
who did the effort of examining the code of the user plugin. See:
https://forum.noteworthycomposer.com/?topic=9083.msg72513#msg72513

A quote from this documentation:

    "Rick's "Markup.rg" is a small plugin that can draw text - including music notation -
    with many parameters into a staff. The "how" and "where" of the text is specified with
    small commands - something like write the following text in italics, 3 staff spaces
    higher and at an angle of 45 degrees. Each markup is provided as a sequence of text
    commands, interspersed with the text to be shown."

In this tool these texts and commands are grouped into 'markup elements'.
You can 'compose' a markup object by combining a series of markup elements.

You create a markup element by choosing a 'command' in one of the combo boxes in the
'Markup elements categories' frame, after which a popup is shown where you have to specify
the necessary argument.
(See below for a list of the categories with their commands and corresponding parameters.)
After creating a markup element, you can choose to add it, insert it before or replace some
previously created element.
It's also possible to remove any created markup element.

The created markup elements are shown in the 'Markup elements' frame, along with a description.
The resulting markup field is shown in the 'Markup' area at the bottom.

With this tool can not directly see how the markup will look like in a NWC file.
But by pressing the button 'Copy to clipboard', a markup user object with that markup field is
created in your clipboard, so you can paste it in your NWC file and see the result, without
leaving this tool.
If needed you can then add, insert, replace or remove one or more markup elements.

THE CATEGORIES WITH THEIR COMMANDS AND PARAMETERS:
    Text and Text attributes:
        text: enter the text
        font: select the available fonts from thh select list
        magnify: enter the multiplication factor for the font size
        outline: select 'on' or 'off
        style: select from list: 'regular', 'bold', 'italic' or 'bold italic'
        whiteout: select 'on' or 'off
    Location / orientation commands:
        angle: enter degrees (-180, 180)
        horizontal distance: enter positive number for shifting to the right, negative for left
        horizontal offset: enter positive or negative number
        vertical position: enter positive or negative number
        vertical offset: enterpositve or negative number
    Symbols:
        special character: enter character code
        staff symbol: see below(*)
        staff cue symbol: see below(*)
    Lines:
        solid line: enter number of line segments
        dashed line, large gaps: enter number of line segments
        dashed line, small gaps: enter number of line segments
        dashed line, tiny gaps: enter number of line segments
        solid arrow: enter number of line segments
        dashed arrow, large gaps: enter number of line segments
        dashed arrow, small gaps: enter number of line segments
        dashed arrow, tiny gaps: enter number of line segments
        hairpin(open): enter the length
        hairpin(close): enter the length

THE STAFF AND STAFF CUE SYMBOLS:
    The symbols are grouped into categories. Each category contains a select list of symbols:
        accidentals: sharp, natural, flat, double sharp, double flat;
        articulations: accent, marcato above, marcato under, tenuto, staccatissimo above,
            staccatissimo under;
        bow instrument: down bow, up bow;
        clefs: treble clef, bass clef, alto/tenor clef, percussion clef, octave_shift;
        dynamics: ppp, pp, p, mp, mf, f, ff, fff;
        flow direction: coda, segno;
        miscellaneous: anchor, colon, gtrzter then sign, note dot, note stem part, page turn,
            parenthesis(open), parenthesis(close), plus sign, normal space, short space,
            staff lines, tiny black arrow point, triplet 3
        notes and heads: double whole note, whole note, half grace note, quarter grace note,
            eighth grace note, half notehead, standard notehead, X notehead, open diamond,
            closed diamond;
        ornaments: half mordent, tril, turn;
        rests: whole, half, quarter, eighth, 16th, 32nd, 64th, double measure;
        sustain pedal: pedal down, pedal released;
        tempo variance: breath mark, ceasura, fermata above, fermata under;
        time signature: alla breve, common time.