"""Reusable Qt processing panel and plot attachment; no SETGUI dependency.""" from __future__ import annotations from dataclasses import replace try: from PySide6.QtCore import QObject, QPointF, QRunnable, QThreadPool, QSignalBlocker, QTimer, Qt, Signal, Slot from PySide6.QtGui import QColor, QPainterPath, QPen from PySide6.QtWidgets import ( QComboBox, QDialog, QFileDialog, QHBoxLayout, QLabel, QPushButton, QSpinBox, QVBoxLayout, QWidget, ) except ImportError: from PySide2.QtCore import QObject, QPointF, QRunnable, QThreadPool, QSignalBlocker, QTimer, Qt, Signal, Slot from PySide2.QtGui import QColor, QPainterPath, QPen from PySide2.QtWidgets import ( QComboBox, QDialog, QFileDialog, QHBoxLayout, QLabel, QPushButton, QSpinBox, QVBoxLayout, QWidget, ) from set_devices.signal_reconstruction import METHODS from set_devices.plot_processing import Snapshot, prepare, process, write_csv class _ResultSignals(QObject): done = Signal(object, object, str) class _Calculation(QRunnable): def __init__(self, signature): super().__init__() self.signature = signature self.signals = _ResultSignals() def run(self): try: result = process(self.signature) except Exception as error: self.signals.done.emit(self.signature, None, str(error)) else: self.signals.done.emit(self.signature, result, "") class SignalProcessingPanel(QWidget): changed = Signal() RESULT_KEY = "__calculated_trend__" def __init__(self, parent=None): super().__init__(parent) self._snapshot = Snapshot() self._result = None self._result_signature = None self._job = None self._revision = 0 self._job_revision = 0 self.preserve_on_view_change = False layout = QVBoxLayout(self) layout.setContentsMargins(0, 0, 0, 0) row = QHBoxLayout() row.addWidget(QLabel("Обработка")) self.channel = QComboBox() self.channel.setMinimumWidth(140) row.addWidget(self.channel) self.method = QComboBox() for key, title in METHODS.items(): self.method.addItem(title, key) self.method.setCurrentIndex(2) row.addWidget(self.method) row.addStretch(1) layout.addLayout(row) row = QHBoxLayout() row.addWidget(QLabel("Степень")) self.degree = QSpinBox() self.degree.setRange(1, 5) self.degree.setValue(2) row.addWidget(self.degree) row.addWidget(QLabel("Точек результата")) self.count = QSpinBox() self.count.setRange(2, 10000) self.count.setValue(1000) row.addWidget(self.count) self.apply_button = QPushButton("Рассчитать") self.apply_button.clicked.connect(self.calculate) row.addWidget(self.apply_button) self.clear_button = QPushButton("Убрать") self.clear_button.clicked.connect(self.clear) row.addWidget(self.clear_button) self.export_button = QPushButton("Результат CSV…") self.export_button.clicked.connect(self.export_csv) row.addWidget(self.export_button) row.addStretch(1) layout.addLayout(row) self.status = QLabel("Выберите аналоговый канал и метод. Расчёт по переданным точкам, без экстраполяции.") self.status.setWordWrap(True) layout.addWidget(self.status) self.method.setToolTip( "Полином МНК — сглаживание шумных данных. Линейная — отрезки между точками.\n" "PCHIP — сохранение формы без выбросов. Сплайн — гладкая кривая, возможны выбросы.\n" "Восстановление — оценка между измерениями; утраченные детали не определяются однозначно.") for widget in (self.channel, self.method): widget.currentIndexChanged.connect(self.clear) for widget in (self.degree, self.count): widget.valueChanged.connect(self.clear) self._update_actions() def _signature(self): return prepare(self._snapshot, self.channel.currentData(), self.method.currentData(), self.count.value(), self.degree.value()) def _current_request_for(self, signature): if not self.preserve_on_view_change or signature is None: return self._signature() # Validate the original calculation domain, independently of navigation. return prepare(replace(self._snapshot, x_range=signature.x_range), self.channel.currentData(), self.method.currentData(), self.count.value(), self.degree.value()) def set_snapshot(self, snapshot): previous = ((self._result_signature or (self._job.signature if self._job is not None else None)) if self.preserve_on_view_change else None) or self._signature() was_blocked = bool(self._snapshot.blocked_reason) choices = [(signal.key, signal.label) for signal in snapshot.analogs] current = [(self.channel.itemData(i), self.channel.itemText(i)) for i in range(self.channel.count())] if choices != current: selected = self.channel.currentData() blocker = QSignalBlocker(self.channel) self.channel.clear() for key, title in choices: self.channel.addItem(title, key) index = self.channel.findData(selected) if index >= 0: self.channel.setCurrentIndex(index) del blocker self._snapshot = snapshot if previous != self._current_request_for(previous): self._revision += 1 if self._result is not None: self._result = self._result_signature = None self.status.setText("Данные или окно изменились — нажмите «Рассчитать» повторно.") if snapshot.blocked_reason: self.status.setText(snapshot.blocked_reason) elif not choices: self.status.setText("Нет видимых аналоговых каналов для обработки.") elif was_blocked: self.status.setText("Выберите канал и метод, затем нажмите «Рассчитать».") self._update_actions() def _update_actions(self): self.degree.setEnabled(self.method.currentData() == "polynomial") request = self._signature() self.apply_button.setEnabled(self._job is None and request is not None and len(request.series.points) >= 2) self.export_button.setEnabled(self._result is not None and not self._snapshot.blocked_reason) self.clear_button.setEnabled(self._result is not None or self._job is not None) self.apply_button.setToolTip("Обработка выбранной кривой в её единицах X/Y. Для живого потока остановите сбор.") def clear(self, *_): self._revision += 1 self._result = self._result_signature = None self.status.setText("Расчёт по текущему окну. Исходные измерения сохраняются; кривая — оценка между точками.") self._update_actions() self.changed.emit() def calculate(self): if self._job is not None or self._snapshot.blocked_reason: return signature = self._signature() if signature is None or len(signature.series.points) < 2: self.status.setText("Нужны минимум две точки аналогового канала.") return self._job = _Calculation(signature) self._job_revision = self._revision self._job.signals.done.connect(self._finished) self.status.setText("Расчёт…") self._update_actions() QThreadPool.globalInstance().start(self._job) @Slot(object, object, str) def _finished(self, signature, result, error): self._job = None if signature != self._current_request_for(signature) or self._job_revision != self._revision: self.status.setText("Данные изменились во время расчёта. Остановите сбор и повторите расчёт.") elif error: self.status.setText("Расчёт не выполнен: " + error) else: self._result, self._result_signature = result, signature duplicates = result.input_count - result.unique_count self.status.setText( f"{self.channel.currentText()}: {result.unique_count} исходных → {len(result.points)} расчётных точек; " f"СКО на измерениях: {result.rmse:.6g}. " + (f"Повторы X усреднены: {duplicates}. " if duplicates else "") + "Розовая линия — расчётная оценка; исходные данные сохранены.") self._update_actions() self.changed.emit() def overlay(self): if self._result is None or self._snapshot.blocked_reason: return [], {} return [(self.RESULT_KEY, self._result.label, False, "#FF70D0", True)], {self.RESULT_KEY: self._result.points} @property def curve(self): return self._result def export_csv(self): if self._result is None: return path, _ = QFileDialog.getSaveFileName(self, "Сохранить расчётную кривую", "calculated-signal.csv", "CSV (*.csv)") if not path: return try: with open(path, "w", newline="", encoding="utf-8-sig") as stream: write_csv(self._result, stream) except (OSError, ValueError, OverflowError) as error: self.status.setText("Не удалось сохранить CSV: " + str(error)) class PlotProcessingAttachment(QObject): """Attach to any Qt plot via snapshot/project/repaint callbacks. Call source_changed when raw data, units or visible channel selection change. Paint after raw analog curves with the same rect/projection. No channel or history mutation, no dependency on the caller's renderer or acquisition API. """ def __init__(self, parent, snapshot, repaint): super().__init__(parent) self.snapshot = snapshot self.repaint = repaint self.dialog = None self.panel = None self._external_curve = None self._external_offset = 0.0 self.button = QPushButton("Обработка…", parent) self.button.setToolTip("Аппроксимация, интерполяция и восстановление аналоговой кривой") self.button.clicked.connect(self.open) self._refresh_timer = QTimer(self) self._refresh_timer.setSingleShot(True) self._refresh_timer.timeout.connect(self.refresh) self._dirty = False @property def curve(self): # Hide stale geometry immediately, before coalesced refresh runs. if self._external_curve is not None: return self._external_curve return self.panel.curve if self.panel is not None and not self._dirty else None def set_external_curve(self, curve, x_offset=0.0): """Embedded panels own snapshot invalidation; display rebasing is explicit.""" self._external_curve = curve self._external_offset = x_offset self.repaint() def source_changed(self): if self.panel is not None: self._dirty = True self._refresh_timer.start(0) def refresh(self): if self.panel is not None: self.panel.set_snapshot(self.snapshot()) self._dirty = False self.repaint() def open(self): if self.dialog is None: self.dialog = QDialog(self.parent()) self.dialog.setWindowTitle("Обработка графика") layout = QVBoxLayout(self.dialog) self.panel = SignalProcessingPanel(self.dialog) self.panel.changed.connect(self.repaint) layout.addWidget(self.panel) self.dialog.resize(760, 240) self.refresh() self.dialog.show() self.dialog.raise_() self.dialog.activateWindow() def paint(self, painter, rect, project): curve = self.curve if curve is None: return painter.save() painter.setClipRect(rect) path = QPainterPath() for index, (x, y) in enumerate(curve.points): point = project(x - (self._external_offset if self._external_curve is not None else 0), y, rect) path.moveTo(point) if index == 0 else path.lineTo(point) painter.setPen(QPen(QColor("#FF70D0"), 2, Qt.DashLine)) painter.setBrush(Qt.NoBrush) painter.drawPath(path) painter.setPen(QColor("#FF70D0")) painter.drawText(QPointF(rect.left() + 6, rect.bottom() - 8), curve.label) painter.restore()