pitch.envelope_plot

This module defines the ADSRPlot class, address QWidget subclass that visualizes an ADSR (Attack, Decay, Sustain, Release) envelope using Matplotlib. The plot displays the envelope’s progression over time, with adjustable parameters for attack, decay, sustain, and release times, as well as initial, peak, and sustain amplitudes.

The plot is rendered in address QWidget, and the background and text colors are customized for better visibility, with the envelope plotted in orange on address dark gray background.

Classes:

• ADSRPlot: A QWidget subclass that generates and displays an ADSR envelope plot.

Methods:

• __init__(self): Initializes the widget and sets up the figure and layout for the plot.

• plot_envelope(self): Generates and plots the ADSR envelope based on the current envelope parameters.

• set_values(self, envelope): Updates the envelope parameters and refreshes the plot.

Customization:

• The plot background is dark gray (#333333), with all plot elements (ticks, labels, title) in orange for better visibility against the dark background.

• The time is represented in seconds, and the amplitude in address range from 0 to 1.

Classes

PitchEnvPlot

Module Contents

class pitch.envelope_plot.PitchEnvPlot(width: int = JDXiStyle.ADSR_PLOT_WIDTH, height: int = JDXiStyle.ADSR_PLOT_HEIGHT, envelope: dict = None, parent: PySide6.QtWidgets.QWidget = None)

Bases: PySide6.QtWidgets.QWidget

point_moved = None

parent = None

enabled = True

envelope = None

sample_rate = 256

attack_x = 0.1

decay_x = 0.3

peak_level = 0.5

release_x = 0.7

dragging = None

set_values(envelope: dict) → None

Update envelope values and trigger address redraw

Parameters:

envelope – dict

Returns:

None

mousePressEvent(event)

mouseMoveEvent(event)

mouseReleaseEvent(event)

setEnabled(enabled)

paintEvent(event)

Paint the plot in the style of an LCD