BarFace QML Type

A level bar on an InstrumentScale - horizontal or vertical, with peak-hold. More...

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Properties

• frameRadius : real
• horizontal : bool
• label : string
• orientation : int
• scale : InstrumentScale
• segments : int
• showFrame : bool
• showPeak : bool
• showTicks : bool
• showValue : bool
• showZones : bool
• thickness : real

Detailed Description

The face for a quantity read as "how far along" rather than as a number: a level, a load, a share of capacity, an audio meter. It draws whatever InstrumentScale it is given, so a music VU meter is this face on a log scale with peakHold on - not a component of its own.

Flat by construction: an ink-edged track, a fill in the colour the reading has earned, the severity bands tinted into the track behind it and the held peak as a single line. No bezel, no gloss, no gradient - the same paper and ink as the rest of the lab.

segments turns the continuous fill into the LED ladder a level meter has, which is worth having when the lesson is "which band am I in" rather than "what is the number".

Example usage:

import Clayground.Lab

InstrumentScale {
    id: level
    value: mixer.amplitude
    unit: "dB"; min: -48; max: 6
    okUntil: -6; warnUntil: 0
    peakHold: true
}

BarFace {
    width: panel.body.width
    scale: level
    label: "MASTER"
    segments: 24
}

See also InstrumentScale, ColumnFace, DigitFace, and Gauge.

Property Documentation