tweaked PyQT backend

RFG_ADC_dataplotter.py

@@ -1775,7 +1775,11 @@ def run_pyqtgraph(args):
     interval_ms = int(1000.0 / max_fps)
 
     # PyQtGraph настройки
-    pg.setConfigOptions(useOpenGL=not peak_calibrate_mode, antialias=False)
+    pg.setConfigOptions(
+        useOpenGL=not peak_calibrate_mode,
+        antialias=False,
+        imageAxisOrder="row-major",
+    )
     app = QtWidgets.QApplication.instance()
     if app is None:
         app = QtWidgets.QApplication([])
@@ -1832,7 +1836,7 @@ def run_pyqtgraph(args):
 
     # Водопад спектров (справа-снизу)
     p_spec = win.addPlot(row=1, col=1, title="B-scan (дБ)")
-    p_spec.invertY(True)
+    p_spec.invertY(False)
     p_spec.showGrid(x=False, y=False)
     p_spec.setLabel("bottom", "Время, с (новое справа)")
     try:
@@ -1851,6 +1855,9 @@ def run_pyqtgraph(args):
 
     # Отдельное окно контролов: GraphicsLayoutWidget не принимает обычные QWidget через addItem.
     calib_cb = QtWidgets.QCheckBox("калибровка")
+    control_window = None
+    control_layout = None
+    if peak_calibrate_mode:
         control_window = QtWidgets.QWidget()
         try:
             control_window.setWindowTitle(f"{args.title} controls")
@@ -1949,9 +1956,11 @@ def run_pyqtgraph(args):
                     pass
                 c_layout.addRow(f"C{idx}", edit)
                 c_edits.append(edit)
+            if control_layout is not None:
                 control_layout.addWidget(c_widget)
         except Exception:
             pass
+    if control_window is not None:
         try:
             control_window.show()
         except Exception:
@@ -2102,7 +2111,9 @@ def run_pyqtgraph(args):
         cm_mod = getattr(pg, "colormap", None)
         if cm_mod is not None:
             cm = cm_mod.get(args.cmap)
-            img.setLookupTable(cm.getLookupTable(0.0, 1.0, 256))
+            lut = cm.getLookupTable(0.0, 1.0, 256)
+            img.setLookupTable(lut)
+            img_fft.setLookupTable(lut)
     except Exception:
         pass
 
@@ -2189,7 +2200,7 @@ def run_pyqtgraph(args):
 
         if changed and ring is not None:
             disp = ring if head == 0 else np.roll(ring, -head, axis=0)
-            disp = disp.T[:, ::-1]  # (width, time with newest at left)
+            disp = disp.T  # (width, time with newest at right)
             levels = _visible_levels_pyqtgraph(disp)
             if levels is not None:
                 img.setImage(disp, autoLevels=False, levels=levels)
@@ -2226,10 +2237,9 @@ def run_pyqtgraph(args):
 
         if changed and ring_fft is not None:
             disp_fft = ring_fft if head == 0 else np.roll(ring_fft, -head, axis=0)
-            disp_fft = disp_fft.T[:, ::-1]
+            disp_fft = disp_fft.T
             if spec_mean_sec > 0.0 and ring_time is not None:
                 disp_times = ring_time if head == 0 else np.roll(ring_time, -head)
-                disp_times = disp_times[::-1]
                 now_t = time.time()
                 mask = np.isfinite(disp_times) & (disp_times >= (now_t - spec_mean_sec))
                 if np.any(mask):
@@ -2273,6 +2283,7 @@ def run_pyqtgraph(args):
     def on_quit():
         stop_event.set()
         reader.join(timeout=1.0)
+        if control_window is not None:
             try:
                 control_window.close()
             except Exception: