Store or retrieve the requested scale orientation.

Initialize, set and get, BOOL. Default TRUE for horizontal. FALSE

selects the unimplemented vertical branch.

A changed value requests full redraw; every supplied tag is still

forwarded to Area, including unchanged values. Get writes the stored

BOOL to caller-owned IPTR storage and returns TRUE. Set returns the

superclass result. There is no relayout request, so changing this

attribute does not itself update size negotiation. In vertical mode only

superclass drawing occurs and no class-specific sizes are added.

Area.mui

Draw a horizontal percentage scale from 0% to 100%. This is a decorative

Area subclass with no value attribute, range configuration, numeric

input or automatic association with Gauge. The default orientation is

horizontal. Vertical orientation can be stored and retrieved but has no

scale rendering or class-specific size implementation.

Setup calls Area and measures the literal string "0% 100%" using the

current font; it caches that width and the font height. It returns zero

if Area setup fails, otherwise one. Horizontal AskMinMax adds the cached

width to minimum/default widths, permits maximum width MUI_MAXMAX and

adds font height plus four pixels to all height fields. In vertical mode

it leaves superclass size fields unchanged. It returns zero.

Draw calls Area and, in horizontal mode, paints a bar, endpoint labels

and alternating long/short marks. It selects a power-of-two subdivision

count from available width and measured strings. The fit estimate

measures subdivision indices followed by percent signs, rather than the

actual percentage labels; it is not a guarantee that labels fit.

Endpoint labels are 0% and 100%; intermediate displayed values use

integer division. Temporary Zune text objects are freed after use;

allocation failure skips the affected label. Draw returns zero and has

no local draw-flag check.

No persistent strings, bitmap, pen or native gadget are allocated by

this class. Use the normal Area lifecycle with a live font and render

context. Orientation changes request redraw but do not request relayout

or remeasure text. No vertical drawing is supplied after such a change.