Files
flares/src/window/updateevents.py
T
2026-09-01 02:14:47 -07:00

884 lines
35 KiB
Python

"""
Filename: updateevents.py
Description: Methods to update snirf events
Note: Compliant with pylance strict type checking
Author: Tyler de Zeeuw
License: GPL-3.0
"""
# Built-in imports
import os
import json
import concurrent.futures
from enum import Enum, auto
from typing import Any, List, Optional, Sequence, Union, cast
# External library imports
from PySide6.QtWidgets import QWidget, QVBoxLayout, QLabel, QLineEdit, QPushButton, QComboBox, QHBoxLayout, QMessageBox, QFileDialog
from PySide6.QtCore import Qt
from mne import Annotations
from mne.io import read_raw_snirf #type: ignore
from mne_nirs.io import write_raw_snirf #type: ignore
from mne.io.base import BaseRaw
from src.shared.shareddata import APP_NAME
def _load_annotations_worker(file_path: str) -> Annotations:
"""Isolated worker process to load SNIRF annotations without leaving HDF5 memory leaks in main process."""
raw: BaseRaw = read_raw_snirf(file_path, preload=False, verbose=False)
return cast(Annotations, getattr(raw, "annotations"))
def load_snirf_annotations_isolated(file_path: str) -> Annotations:
"""Spawns a short-lived process to extract annotations and cleanly releases C-memory allocations."""
with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
future = executor.submit(_load_annotations_worker, file_path)
return future.result()
def _write_snirf_worker(
file_path: str,
save_path: str,
onsets: list[float],
durations: list[float],
descriptions: list[str]
) -> None:
"""Isolated process worker to read, annotate, write, and immediately free memory/file handles."""
raw = read_raw_snirf(file_path, preload=True, verbose=False)
new_annotations = Annotations(onset=onsets, duration=durations, description=descriptions)
raw.set_annotations(new_annotations) #type: ignore
write_raw_snirf(raw, save_path)
def write_snirf_with_annotations_isolated(
file_path: str,
save_path: str,
onsets: list[float],
durations: list[float],
descriptions: list[str]
) -> None:
"""Executes SNIRF writing in a dedicated worker process to ensure 100% memory/handle cleanup."""
with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
future = executor.submit(
_write_snirf_worker,
file_path,
save_path,
onsets,
durations,
descriptions
)
future.result()
def _align_boris_and_write_snirf_worker(
file_path: str,
save_path: str,
boris_events: list[Any],
time_shift: float
) -> int:
"""
Isolated process worker to read SNIRF, align BORIS events, write updated file,
and cleanly exit releasing all HDF5 C-memory allocations and file locks.
"""
raw = read_raw_snirf(file_path, preload=True, verbose=False)
# Type-safe extraction of sampling frequency from raw.info
info_dict = cast(dict[str, Any], raw.info)
sfreq = float(info_dict.get("sfreq", 10.0))
min_shift = 1.0 / sfreq if sfreq > 0 else 0.1
max_attempts = 10
onsets: list[float] = []
durations: list[float] = []
descriptions: list[str] = []
open_events: dict[str, list[float]] = {}
label_counts: dict[str, int] = {}
used_times: set[float] = set()
for raw_event in boris_events:
if not isinstance(raw_event, (list, tuple)):
continue
event = cast(Sequence[Any], raw_event)
if len(event) < 3:
continue
event_time = float(event[0])
label = str(event[2])
count = label_counts.get(label, 0) + 1
label_counts[label] = count
if label not in open_events:
open_events[label] = []
if count % 2 == 1:
open_events[label].append(event_time)
else:
if open_events[label]:
start_time = open_events[label].pop(0)
duration = event_time - start_time
if duration <= 0:
continue
adjusted_time = start_time + time_shift
attempts = 0
while round(adjusted_time, 6) in used_times and attempts < max_attempts:
adjusted_time += min_shift
attempts += 1
if attempts == max_attempts:
continue
adjusted_time = round(adjusted_time, 6)
used_times.add(adjusted_time)
onsets.append(adjusted_time)
durations.append(round(duration, 6))
descriptions.append(label)
# Handle unmatched start markers
for label, starts in open_events.items():
for start_time in starts:
adjusted_time = start_time + time_shift
attempts = 0
while round(adjusted_time, 6) in used_times and attempts < max_attempts:
adjusted_time += min_shift
attempts += 1
if attempts == max_attempts:
continue
adjusted_time = round(adjusted_time, 6)
used_times.add(adjusted_time)
onsets.append(adjusted_time)
durations.append(0.0)
descriptions.append(label)
new_annotations = Annotations(onset=onsets, duration=durations, description=descriptions)
raw.set_annotations(new_annotations) #type: ignore
write_raw_snirf(raw, save_path)
return len(onsets)
def align_boris_and_write_snirf_isolated(
file_path: str,
save_path: str,
boris_events: list[Any],
time_shift: float
) -> int:
"""Executes BORIS alignment and SNIRF writing in a dedicated worker process."""
with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
future = executor.submit(
_align_boris_and_write_snirf_worker,
file_path,
save_path,
boris_events,
time_shift
)
return future.result()
class EventUpdateMode(Enum):
WRITE_SNIRF = auto() # destructive
WRITE_JSON = auto() # non-destructive
class UpdateEventsWindow(QWidget):
def __init__(self, parent: Optional[QWidget]=None, mode: EventUpdateMode=EventUpdateMode.WRITE_SNIRF, caller: Optional[Union[str, object]] = None,):
super().__init__(parent, Qt.WindowType.Window)
self.mode = mode
self.caller = caller or self.__class__.__name__
self.setWindowTitle(f"Update event markers - {APP_NAME.upper()}")
self.resize(760, 200)
print("INIT MODE:", mode)
self.label_file_a = QLabel("SNIRF file:")
self.line_edit_file_a = QLineEdit()
self.line_edit_file_a.setReadOnly(True)
self.btn_browse_a = QPushButton("Browse .snirf")
self.btn_browse_a.clicked.connect(self.browse_file_a)
self.label_file_b = QLabel("BORIS file:")
self.line_edit_file_b = QLineEdit()
self.line_edit_file_b.setReadOnly(True)
self.btn_browse_b = QPushButton("Browse .boris")
self.btn_browse_b.clicked.connect(self.browse_file_b)
self.label_suffix = QLabel("Filename in BORIS project file:")
self.combo_suffix = QComboBox()
self.combo_suffix.setEditable(False)
self.combo_suffix.currentIndexChanged.connect(self.on_observation_selected)
self.label_events = QLabel("Events in selected observation:")
self.combo_events = QComboBox()
self.combo_events.setEnabled(False)
self.label_snirf_events = QLabel("Events in SNIRF file:")
self.combo_snirf_events = QComboBox()
self.combo_snirf_events.setEnabled(False)
self.btn_clear = QPushButton("Clear")
self.btn_go = QPushButton("Go")
self.btn_clear.clicked.connect(self.clear_files)
self.btn_go.clicked.connect(self.go_action)
# ---
layout = QVBoxLayout()
self.description = QLabel()
self.description.setTextFormat(Qt.TextFormat.RichText)
self.description.setTextInteractionFlags(Qt.TextInteractionFlag.TextBrowserInteraction)
self.description.setOpenExternalLinks(True)
self.description.setText("The events that are present in a snirf file may not be the events that are to be studied and examined.<br>"
"Utilizing different software and video recordings, it is easy enough to see when an action actually occured in a file.<br>"
"The software <a href='https://www.boris.unito.it/'>BORIS</a> is used to add these events to video files, and these events can be applied to the snirf file <br>"
"selected below by selecting the correct BORIS observation and time syncing it to an event that it shares with the snirf file.")
layout.addWidget(self.description)
help_text_a = "Select the SNIRF (.snirf) file to update with new event markers."
file_a_layout = QHBoxLayout()
# Help button on the left
help_btn_a = QPushButton("?")
help_btn_a.setFixedWidth(25)
help_btn_a.setToolTip(help_text_a)
help_btn_a.clicked.connect(lambda: self.show_help_popup(help_text_a))
file_a_layout.addWidget(help_btn_a)
# Container for label + line_edit + browse button with tooltip
file_a_container = QWidget()
file_a_container_layout = QHBoxLayout()
file_a_container_layout.setContentsMargins(0, 0, 0, 0)
file_a_container_layout.addWidget(self.label_file_a)
file_a_container_layout.addWidget(self.line_edit_file_a)
file_a_container_layout.addWidget(self.btn_browse_a)
file_a_container.setLayout(file_a_container_layout)
file_a_container.setToolTip(help_text_a)
file_a_layout.addWidget(file_a_container)
layout.addLayout(file_a_layout)
help_text_b = "Provide a .boris project file that contains events for this participant."
file_b_layout = QHBoxLayout()
help_btn_b = QPushButton("?")
help_btn_b.setFixedWidth(25)
help_btn_b.setToolTip(help_text_b)
help_btn_b.clicked.connect(lambda: self.show_help_popup(help_text_b))
file_b_layout.addWidget(help_btn_b)
file_b_container = QWidget()
file_b_container_layout = QHBoxLayout()
file_b_container_layout.setContentsMargins(0, 0, 0, 0)
file_b_container_layout.addWidget(self.label_file_b)
file_b_container_layout.addWidget(self.line_edit_file_b)
file_b_container_layout.addWidget(self.btn_browse_b)
file_b_container.setLayout(file_b_container_layout)
file_b_container.setToolTip(help_text_b)
file_b_layout.addWidget(file_b_container)
layout.addLayout(file_b_layout)
help_text_suffix = "This participant from the .boris project file matches the .snirf file."
suffix_layout = QHBoxLayout()
help_btn_suffix = QPushButton("?")
help_btn_suffix.setFixedWidth(25)
help_btn_suffix.setToolTip(help_text_suffix)
help_btn_suffix.clicked.connect(lambda: self.show_help_popup(help_text_suffix))
suffix_layout.addWidget(help_btn_suffix)
suffix_container = QWidget()
suffix_container_layout = QHBoxLayout()
suffix_container_layout.setContentsMargins(0, 0, 0, 0)
suffix_container_layout.addWidget(self.label_suffix)
suffix_container_layout.addWidget(self.combo_suffix)
suffix_container.setLayout(suffix_container_layout)
suffix_container.setToolTip(help_text_suffix)
suffix_layout.addWidget(suffix_container)
layout.addLayout(suffix_layout)
help_text_suffix = "The events extracted from the BORIS project file for the selected observation."
suffix2_layout = QHBoxLayout()
help_btn_suffix = QPushButton("?")
help_btn_suffix.setFixedWidth(25)
help_btn_suffix.setToolTip(help_text_suffix)
help_btn_suffix.clicked.connect(lambda: self.show_help_popup(help_text_suffix))
suffix2_layout.addWidget(help_btn_suffix)
suffix2_container = QWidget()
suffix2_container_layout = QHBoxLayout()
suffix2_container_layout.setContentsMargins(0, 0, 0, 0)
suffix2_container_layout.addWidget(self.label_events)
suffix2_container_layout.addWidget(self.combo_events)
suffix2_container.setLayout(suffix2_container_layout)
suffix2_container.setToolTip(help_text_suffix)
suffix2_layout.addWidget(suffix2_container)
layout.addLayout(suffix2_layout)
snirf_events_layout = QHBoxLayout()
help_text_snirf_events = "The event markers extracted from the SNIRF file."
help_btn_snirf_events = QPushButton("?")
help_btn_snirf_events.setFixedWidth(25)
help_btn_snirf_events.setToolTip(help_text_snirf_events)
help_btn_snirf_events.clicked.connect(lambda: self.show_help_popup(help_text_snirf_events))
snirf_events_layout.addWidget(help_btn_snirf_events)
snirf_events_container = QWidget()
snirf_events_container_layout = QHBoxLayout()
snirf_events_container_layout.setContentsMargins(0, 0, 0, 0)
snirf_events_container_layout.addWidget(self.label_snirf_events)
snirf_events_container_layout.addWidget(self.combo_snirf_events)
snirf_events_container.setLayout(snirf_events_container_layout)
snirf_events_container.setToolTip(help_text_snirf_events)
snirf_events_layout.addWidget(snirf_events_container)
layout.addLayout(snirf_events_layout)
buttons_layout = QHBoxLayout()
buttons_layout.addStretch()
buttons_layout.addWidget(self.btn_clear)
buttons_layout.addWidget(self.btn_go)
layout.addLayout(buttons_layout)
self.setLayout(layout)
def show_help_popup(self, text: str) -> None:
msg = QMessageBox(self)
msg.setWindowTitle(f"Parameter Info - {APP_NAME.upper()}")
msg.setText(text)
msg.exec()
def browse_file_a(self) -> None:
file_path, _ = QFileDialog.getOpenFileName(self, "Select SNIRF File", "", "SNIRF Files (*.snirf)")
if file_path:
self.line_edit_file_a.setText(file_path)
try:
# Memory leak safe: Extracted in a separate process that terminates immediately
annotations: Annotations = load_snirf_annotations_isolated(file_path)
print(f"Loaded {len(annotations)} annotations from {file_path}")
# Build individual event entries
event_entries: list[str] = []
for onset, description in zip(annotations.onset, annotations.description):
event_str = f"{description} @ {onset:.3f}s"
event_entries.append(event_str)
if not event_entries:
QMessageBox.information(self, "No Events", "No events found in SNIRF file.")
self.combo_snirf_events.clear()
self.combo_snirf_events.setEnabled(False)
return
self.combo_snirf_events.clear()
self.combo_snirf_events.addItems(event_entries)
self.combo_snirf_events.setEnabled(True)
except Exception as e:
QMessageBox.warning(self, "Error", f"Could not read SNIRF file with MNE:\n{str(e)}")
self.combo_snirf_events.clear()
self.combo_snirf_events.setEnabled(False)
def browse_file_b(self) -> None:
file_path, _ = QFileDialog.getOpenFileName(self, "Select BORIS File", "", "BORIS project Files (*.boris)")
if file_path:
self.line_edit_file_b.setText(file_path)
try:
with open(file_path, 'r', encoding='utf-8') as f:
data = json.load(f)
self.boris_data = data
observation_keys = self.extract_boris_observation_keys(data)
self.combo_suffix.clear()
self.combo_suffix.addItems(observation_keys)
except (json.JSONDecodeError, FileNotFoundError, KeyError) as e:
QMessageBox.warning(self, "Error", f"Failed to parse BORIS file:\n{e}")
def extract_boris_observation_keys(self, data: dict[str, Any]) -> List[str]:
if "observations" not in data:
raise KeyError("Missing 'observations' key in BORIS file.")
observations = cast(dict[str, Any], data["observations"])
return list(observations.keys())
def on_observation_selected(self):
selected_obs = self.combo_suffix.currentText()
if not selected_obs or not hasattr(self, 'boris_data'):
self.combo_events.clear()
self.combo_events.setEnabled(False)
return
try:
events = self.boris_data["observations"][selected_obs]["events"]
except (KeyError, TypeError):
self.combo_events.clear()
self.combo_events.setEnabled(False)
return
event_entries: list[str] = []
for raw_event in events:
if not isinstance(raw_event, (list, tuple)):
continue
event = cast(Sequence[Any], raw_event)
if len(event) >= 3:
timestamp = float(event[0])
label = str(event[2])
display = f"{label} @ {timestamp:.3f}"
event_entries.append(display)
self.combo_events.clear()
self.combo_events.addItems(event_entries)
self.combo_events.setEnabled(bool(event_entries))
def clear_files(self) -> None:
self.line_edit_file_a.clear()
self.line_edit_file_b.clear()
def go_action(self) -> None:
file_a = self.line_edit_file_a.text()
suffix = "flare"
if not hasattr(self, "boris_data") or self.combo_events.count() == 0 or self.combo_snirf_events.count() == 0:
QMessageBox.warning(self, "Missing data", "Please make sure a BORIS and SNIRF event are selected.")
return
# Extract BORIS anchor
try:
boris_label, boris_time_str = self.combo_events.currentText().split(" @ ")
boris_anchor_time = float(boris_time_str.replace("s", "").strip())
except Exception as e:
QMessageBox.critical(self, "BORIS Event Error", f"Could not parse BORIS anchor event:\n{e}")
return
# Extract SNIRF anchor
try:
snirf_label, snirf_time_str = self.combo_snirf_events.currentText().split(" @ ")
snirf_anchor_time = float(snirf_time_str.replace("s", "").strip())
except Exception as e:
QMessageBox.critical(self, "SNIRF Event Error", f"Could not parse SNIRF anchor event:\n{e}")
return
time_shift = snirf_anchor_time - boris_anchor_time
selected_obs = self.combo_suffix.currentText()
if not selected_obs or selected_obs not in self.boris_data["observations"]:
QMessageBox.warning(self, "Invalid selection", "Selected observation not found in BORIS file.")
return
boris_events = self.boris_data["observations"][selected_obs].get("events", [])
if not boris_events:
QMessageBox.warning(self, "No BORIS events", "No events found in selected BORIS observation.")
return
snirf_path = self.line_edit_file_a.text()
if not snirf_path:
QMessageBox.warning(self, "No SNIRF file", "Please select a SNIRF file.")
return
boris_obs = self.boris_data["observations"][selected_obs]
# --- Extract videos + delays ---
files = boris_obs.get("file", {})
offsets = boris_obs.get("media_info", {}).get("offset", {})
videos = {}
for key, path in files.items():
if path: # only include videos that exist
delay = offsets.get(key, 0.0) # default 0 if missing
videos[key] = {"file": path, "delay": delay}
base_name = os.path.splitext(os.path.basename(file_a))[0]
if self.mode == EventUpdateMode.WRITE_SNIRF:
# Open save dialog for SNIRF
base_name = os.path.splitext(os.path.basename(file_a))[0]
suggested_name = f"{base_name}_{suffix}.snirf"
save_path, _ = QFileDialog.getSaveFileName(
self,
"Save SNIRF File As",
suggested_name,
"SNIRF Files (*.snirf)"
)
if not save_path:
print("SNIRF save cancelled.")
return
if not save_path.lower().endswith(".snirf"):
save_path += ".snirf"
try:
# Memory leak safe: Worker handles alignment calculation, read, write, and process termination
event_count = align_boris_and_write_snirf_isolated(
file_a,
save_path,
boris_events,
time_shift
)
QMessageBox.information(self, "Success", f"SNIRF file updated with {event_count} aligned BORIS events.")
except Exception as e:
QMessageBox.critical(self, "Error", f"Failed to update SNIRF file:\n{e}")
elif self.mode == EventUpdateMode.WRITE_JSON:
# Open save dialog for JSON
base_name = os.path.splitext(os.path.basename(file_a))[0]
suggested_name = f"{base_name}_{suffix}_alignment.json"
save_path, _ = QFileDialog.getSaveFileName(
self,
"Save Event Alignment JSON As",
suggested_name,
"JSON Files (*.json)"
)
if not save_path:
print("JSON save cancelled.")
return
if not save_path.lower().endswith(".json"):
save_path += ".json"
# Build JSON dict
json_data: dict[str, Any] = {
"observation": selected_obs,
"snirf_anchor": {"label": snirf_label, "time": snirf_anchor_time},
"boris_anchor": {"label": boris_label, "time": boris_anchor_time},
"time_shift": time_shift,
"videos": videos
}
# Write JSON
try:
with open(save_path, "w", encoding="utf-8") as f:
json.dump(json_data, f, indent=4)
QMessageBox.information(self, "Success", f"Event alignment saved to:\n{save_path}")
except Exception as e:
QMessageBox.critical(self, "Error", f"Failed to write JSON:\n{e}")
class UpdateEventsBlazesWindow(QWidget):
def __init__(self, parent: Optional[QWidget]=None, mode: EventUpdateMode=EventUpdateMode.WRITE_SNIRF, caller: Optional[Union[str, object]] = None,):
super().__init__(parent, Qt.WindowType.Window)
self.mode = mode
self.caller = caller or self.__class__.__name__
self.setWindowTitle("Update event markers (BLAZES)")
self.resize(760, 200)
self.label_file_a = QLabel("SNIRF file:")
self.line_edit_file_a = QLineEdit()
self.line_edit_file_a.setReadOnly(True)
self.btn_browse_a = QPushButton("Browse .snirf")
self.btn_browse_a.clicked.connect(self.browse_file_a)
self.label_file_b = QLabel("BLAZES file:")
self.line_edit_file_b = QLineEdit()
self.line_edit_file_b.setReadOnly(True)
self.btn_browse_b = QPushButton("Browse .blaze")
self.btn_browse_b.clicked.connect(self.browse_file_b)
self.label_events = QLabel("Events in selected blazes file:")
self.combo_events = QComboBox()
self.combo_events.setEnabled(False)
self.label_snirf_events = QLabel("Events in SNIRF file:")
self.combo_snirf_events = QComboBox()
self.combo_snirf_events.setEnabled(False)
self.btn_clear = QPushButton("Clear")
self.btn_go = QPushButton("Go")
self.btn_clear.clicked.connect(self.clear_files)
self.btn_go.clicked.connect(self.go_action)
# ---
layout = QVBoxLayout()
self.description = QLabel()
self.description.setTextFormat(Qt.TextFormat.RichText)
self.description.setTextInteractionFlags(Qt.TextInteractionFlag.TextBrowserInteraction)
self.description.setOpenExternalLinks(True)
self.description.setText("The events that are present in a snirf file may not be the events that are to be studied and examined.<br>"
"Utilizing different software and video recordings, it is easy enough to see when an action actually occured in a file.<br>"
"The software <a href='https://git.research.dezeeuw.ca/tyler/blazes/'>BLAZES</a> is used to create these events in video files, and these events can be applied to the snirf file <br>"
"selected below by time syncing it to an event that it shares with the snirf file.")
layout.addWidget(self.description)
help_text_a = "Select the SNIRF (.snirf) file to update with new event markers."
file_a_layout = QHBoxLayout()
# Help button on the left
help_btn_a = QPushButton("?")
help_btn_a.setFixedWidth(25)
help_btn_a.setToolTip(help_text_a)
help_btn_a.clicked.connect(lambda: self.show_help_popup(help_text_a))
file_a_layout.addWidget(help_btn_a)
# Container for label + line_edit + browse button with tooltip
file_a_container = QWidget()
file_a_container_layout = QHBoxLayout()
file_a_container_layout.setContentsMargins(0, 0, 0, 0)
file_a_container_layout.addWidget(self.label_file_a)
file_a_container_layout.addWidget(self.line_edit_file_a)
file_a_container_layout.addWidget(self.btn_browse_a)
file_a_container.setLayout(file_a_container_layout)
file_a_container.setToolTip(help_text_a)
file_a_layout.addWidget(file_a_container)
layout.addLayout(file_a_layout)
help_text_b = "Provide a .blaze output file that contains events for this participant."
file_b_layout = QHBoxLayout()
help_btn_b = QPushButton("?")
help_btn_b.setFixedWidth(25)
help_btn_b.setToolTip(help_text_b)
help_btn_b.clicked.connect(lambda: self.show_help_popup(help_text_b))
file_b_layout.addWidget(help_btn_b)
file_b_container = QWidget()
file_b_container_layout = QHBoxLayout()
file_b_container_layout.setContentsMargins(0, 0, 0, 0)
file_b_container_layout.addWidget(self.label_file_b)
file_b_container_layout.addWidget(self.line_edit_file_b)
file_b_container_layout.addWidget(self.btn_browse_b)
file_b_container.setLayout(file_b_container_layout)
file_b_container.setToolTip(help_text_b)
file_b_layout.addWidget(file_b_container)
layout.addLayout(file_b_layout)
help_text_suffix = "The events extracted from the blaze file."
suffix2_layout = QHBoxLayout()
help_btn_suffix = QPushButton("?")
help_btn_suffix.setFixedWidth(25)
help_btn_suffix.setToolTip(help_text_suffix)
help_btn_suffix.clicked.connect(lambda: self.show_help_popup(help_text_suffix))
suffix2_layout.addWidget(help_btn_suffix)
suffix2_container = QWidget()
suffix2_container_layout = QHBoxLayout()
suffix2_container_layout.setContentsMargins(0, 0, 0, 0)
suffix2_container_layout.addWidget(self.label_events)
suffix2_container_layout.addWidget(self.combo_events)
suffix2_container.setLayout(suffix2_container_layout)
suffix2_container.setToolTip(help_text_suffix)
suffix2_layout.addWidget(suffix2_container)
layout.addLayout(suffix2_layout)
snirf_events_layout = QHBoxLayout()
help_text_snirf_events = "The event markers extracted from the SNIRF file."
help_btn_snirf_events = QPushButton("?")
help_btn_snirf_events.setFixedWidth(25)
help_btn_snirf_events.setToolTip(help_text_snirf_events)
help_btn_snirf_events.clicked.connect(lambda: self.show_help_popup(help_text_snirf_events))
snirf_events_layout.addWidget(help_btn_snirf_events)
snirf_events_container = QWidget()
snirf_events_container_layout = QHBoxLayout()
snirf_events_container_layout.setContentsMargins(0, 0, 0, 0)
snirf_events_container_layout.addWidget(self.label_snirf_events)
snirf_events_container_layout.addWidget(self.combo_snirf_events)
snirf_events_container.setLayout(snirf_events_container_layout)
snirf_events_container.setToolTip(help_text_snirf_events)
snirf_events_layout.addWidget(snirf_events_container)
layout.addLayout(snirf_events_layout)
buttons_layout = QHBoxLayout()
buttons_layout.addStretch()
buttons_layout.addWidget(self.btn_clear)
buttons_layout.addWidget(self.btn_go)
layout.addLayout(buttons_layout)
self.setLayout(layout)
def show_help_popup(self, text: str) -> None:
msg = QMessageBox(self)
msg.setWindowTitle(f"Parameter Info - {APP_NAME.upper()}")
msg.setText(text)
msg.exec()
def browse_file_a(self) -> None:
file_path, _ = QFileDialog.getOpenFileName(self, "Select SNIRF File", "", "SNIRF Files (*.snirf)")
if file_path:
self.line_edit_file_a.setText(file_path)
try:
# Memory leak safe: Extracted in a separate process that terminates immediately
annotations: Annotations = load_snirf_annotations_isolated(file_path)
print(f"Loaded {len(annotations)} annotations from {file_path}")
# Build individual event entries
event_entries: list[str] = []
for onset, description in zip(annotations.onset, annotations.description):
event_str = f"{description} @ {onset:.3f}s"
event_entries.append(event_str)
if not event_entries:
QMessageBox.information(self, "No Events", "No events found in SNIRF file.")
self.combo_snirf_events.clear()
self.combo_snirf_events.setEnabled(False)
return
self.combo_snirf_events.clear()
self.combo_snirf_events.addItems(event_entries)
self.combo_snirf_events.setEnabled(True)
except Exception as e:
QMessageBox.warning(self, "Error", f"Could not read SNIRF file with MNE:\n{str(e)}")
self.combo_snirf_events.clear()
self.combo_snirf_events.setEnabled(False)
def browse_file_b(self) -> None:
file_path, _ = QFileDialog.getOpenFileName(self, "Select JSON Timeline File", "", "JSON Files (*.json)")
if file_path:
self.line_edit_file_b.setText(file_path)
try:
with open(file_path, 'r', encoding='utf-8') as f:
data = json.load(f)
self.json_data = data
obs_keys = self.extract_json_observation_strings(data)
self.combo_events.clear()
if obs_keys:
self.combo_events.addItems(obs_keys)
self.combo_events.setEnabled(True)
else:
QMessageBox.information(self, "No Events", "No events found in JSON file.")
self.combo_events.setEnabled(False)
except (json.JSONDecodeError, FileNotFoundError, KeyError, TypeError) as e:
QMessageBox.warning(self, "Error", f"Failed to parse JSON file:\n{e}")
self.combo_events.clear()
self.combo_events.setEnabled(False)
def extract_json_observation_strings(self, data: dict[str, Any]) -> List[str]:
if "events" not in data:
raise KeyError("Missing 'events' key in JSON file.")
event_strings: List[str] = []
# Flat list chronologically ordered
for event in data["events"]:
track_name = event.get("track_name", "Unknown")
onset = event.get("start_sec", 0.0)
display_str = f"{track_name} @ {onset:.3f}s"
event_strings.append(display_str)
return event_strings
def clear_files(self) -> None:
self.line_edit_file_a.clear()
self.line_edit_file_b.clear()
def go_action(self) -> None:
file_a = self.line_edit_file_a.text()
_ = self.line_edit_file_b.text()
suffix = APP_NAME
if not hasattr(self, "json_data") or self.combo_events.count() == 0 or self.combo_snirf_events.count() == 0:
QMessageBox.warning(self, "Missing data", "Please make sure a JSON and SNIRF event are selected.")
return
try:
json_text = self.combo_events.currentText()
_, json_time_str = json_text.split(" @ ")
json_anchor_time = float(json_time_str.replace("s", "").strip())
except Exception as e:
QMessageBox.critical(self, "JSON Event Error", f"Could not parse JSON anchor:\n{e}")
return
try:
snirf_text = self.combo_snirf_events.currentText()
_, snirf_time_str = snirf_text.split(" @ ")
snirf_anchor_time = float(snirf_time_str.replace("s", "").strip())
except Exception as e:
QMessageBox.critical(self, "SNIRF Event Error", f"Could not parse SNIRF anchor:\n{e}")
return
time_shift = snirf_anchor_time - json_anchor_time
onsets: list[float] = []
durations: list[float] = []
descriptions: list[str] = []
skipped_count = 0
try:
events_list = self.json_data.get("events", [])
for event in events_list:
track_name = event.get("track_name", "Unknown")
clean_name = track_name.replace("AI: ", "").strip()
original_start = event.get("start_sec", 0.0)
original_end = event.get("end_sec", original_start)
duration = original_end - original_start
# Minimum 0.1s duration
if duration < 0.1:
skipped_count += 1
continue
# Apply shift
adjusted_onset = original_start + time_shift
onsets.append(round(adjusted_onset, 6))
durations.append(round(duration, 6))
descriptions.append(clean_name)
except Exception as e:
QMessageBox.critical(self, "Track Error", f"Failed to process tracks: {e}")
return
if not onsets:
QMessageBox.warning(self, "No Data", f"No events met the 0.1s threshold. (Skipped {skipped_count})")
return
if self.mode == EventUpdateMode.WRITE_SNIRF:
suggested_name = f"{os.path.splitext(os.path.basename(file_a))[0]}_{suffix}.snirf"
save_path, _ = QFileDialog.getSaveFileName(self, "Save SNIRF", suggested_name, "SNIRF Files (*.snirf)")
if not save_path: return
if not save_path.lower().endswith(".snirf"): save_path += ".snirf"
try:
# Memory leak safe: Worker handles read, write, and complete memory reclamation upon exit
write_snirf_with_annotations_isolated(file_a, save_path, onsets, durations, descriptions)
QMessageBox.information(self, "Success",
f"Aligned {len(onsets)} events.\n(Filtered out {skipped_count} short events)")
except Exception as e:
QMessageBox.critical(self, "Error", f"Failed to update SNIRF file:\n{e}")