fix: use QWidget video container and disable linked plot auto-range

verify_sync.py

@@ -219,11 +219,11 @@ class VerifyWindow(QtWidgets.QMainWindow):
         lay = QtWidgets.QVBoxLayout(central)
         lay.setSpacing(2)
 
-        # ── Video display (QVideoWidget) ──
-        self.video_widget = QtMultimediaWidgets.QVideoWidget()
-        self.video_widget.setMinimumHeight(300)
-        self.video_widget.setStyleSheet("background: #000;")
-        lay.addWidget(self.video_widget, stretch=4)
+        # ── Video display (QWidget container) ──
+        self.video_container = QtWidgets.QWidget()
+        self.video_container.setMinimumHeight(300)
+        self.video_container.setStyleSheet("background: #000;")
+        lay.addWidget(self.video_container, stretch=4)
 
         # ── Timeline seek bar ──
         time_row = QtWidgets.QHBoxLayout()
@@ -284,6 +284,13 @@ class VerifyWindow(QtWidgets.QMainWindow):
 
         self.p_a.setXLink(self.p_comb)
         self.p_b.setXLink(self.p_comb)
+        # Disable auto-range on all plots to prevent overflow on linked axes
+        self.p_comb.getViewBox().setAutoVisible(y=False)
+        self.p_a.getViewBox().setAutoVisible(y=False)
+        self.p_b.getViewBox().setAutoVisible(y=False)
+        for p in [self.p_comb, self.p_a, self.p_b]:
+            p.enableAutoRange(axis='x', enable=False)
+            p.enableAutoRange(axis='y', enable=False)
 
         lay.addWidget(self.gw_dual, stretch=2)
 
@@ -343,10 +350,8 @@ class VerifyWindow(QtWidgets.QMainWindow):
         """Set up QMediaPlayer with QVideoWidget for smooth video playback."""
         self.media_player = QtMultimedia.QMediaPlayer()
         self.video_output = QtMultimediaWidgets.QVideoWidget()
-        # Reparent video_output into our video_widget container
-        layout = self.video_widget.layout()
-        if layout is None:
-            layout = QtWidgets.QVBoxLayout(self.video_widget)
+        # Place QVideoWidget inside our container
+        layout = QtWidgets.QVBoxLayout(self.video_container)
         layout.setContentsMargins(0, 0, 0, 0)
         layout.addWidget(self.video_output)
 
@@ -517,6 +522,7 @@ class VerifyWindow(QtWidgets.QMainWindow):
         self.curve_b_sep.setVisible(self.chk_b.isChecked())
 
     def _reset_zoom(self):
+        self.p_comb.enableAutoRange(axis='x', enable=False)
         self.p_comb.setXRange(0, self.duration, padding=0)
 
     def closeEvent(self, event):