Mikkeli Matlock
7bdf465799
Introduce a Metric ABC (compute on worker thread, render on GUI thread) with a METRICS registry, and refactor the analysis pipeline around it. RMS power (ported), raw waveform, and BS.1770 LUFS (via pyloudnorm) ship as the initial three; new metrics drop in by appending to METRICS. - metrics.py: Metric ABC + RMSPowerMetric, WaveformMetric (locked to +/-1.1 y-range for float headroom), LUFSMetric (short-term 3 s window + integrated value, with streaming-target reference line). - plot_control_widget.py: metric selector dropdown + Refresh Plot button (moved out of FontControlWidget). - analysis_results_manager.py: AnalysisResult caches the AudioFile and a per-metric data dict; new MetricComputeWorker runs metric switches off the GUI thread via metricComputeStarted/metricReady/metricComputeError signals, so LUFS on a 12-minute track no longer stalls the UI. - main.py: all redraw paths funnel through one _render_or_request helper; stale-result guards keep slow computes from overwriting fresh selections. - plotting_engine.py removed (metadata text moved onto AnalysisResult; figure construction lives in each Metric). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
"""
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Plot control widget: pick which metric to display and refresh the current plot.
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Mirrors FontControlWidget's clustered-groupbox style so the two sit naturally
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next to each other in the left panel.
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"""
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import logging
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from PyQt5.QtWidgets import (
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QWidget, QVBoxLayout, QHBoxLayout, QLabel, QComboBox, QPushButton, QGroupBox,
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)
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from PyQt5.QtCore import pyqtSignal
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from metrics import METRICS, DEFAULT_METRIC_ID
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class PlotControlWidget(QWidget):
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"""Metric selector + manual plot refresh."""
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metricChanged = pyqtSignal(str) # metric_id
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plotRefreshRequested = pyqtSignal()
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def __init__(self, parent=None):
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super().__init__(parent)
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self.logger = logging.getLogger(__name__)
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self.initUI()
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def initUI(self):
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layout = QVBoxLayout(self)
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layout.setContentsMargins(5, 5, 5, 5)
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group_box = QGroupBox("Plot")
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group_layout = QVBoxLayout(group_box)
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group_layout.addWidget(QLabel("Metric:"))
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self.metric_combo = QComboBox()
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for metric_id, metric in METRICS.items():
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self.metric_combo.addItem(metric.display_name, metric_id)
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default_idx = self.metric_combo.findData(DEFAULT_METRIC_ID)
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if default_idx >= 0:
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self.metric_combo.setCurrentIndex(default_idx)
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self.metric_combo.currentIndexChanged.connect(self._on_metric_changed)
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group_layout.addWidget(self.metric_combo)
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button_row = QHBoxLayout()
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self.refresh_button = QPushButton("Refresh Plot")
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self.refresh_button.setToolTip("Re-render the current plot with current settings")
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self.refresh_button.clicked.connect(self.plotRefreshRequested.emit)
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button_row.addWidget(self.refresh_button)
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group_layout.addLayout(button_row)
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layout.addWidget(group_box)
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def _on_metric_changed(self, _index: int):
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metric_id = self.metric_combo.currentData()
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if metric_id:
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self.logger.info(f"Metric changed: {metric_id}")
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self.metricChanged.emit(metric_id)
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def current_metric_id(self) -> str:
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return self.metric_combo.currentData() or DEFAULT_METRIC_ID
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