Fixed clear signal feature to inlcude all signals

1 files changed, 18 insertions, 1 deletions

diff --git a/ui/main_window.py b/ui/main_window.py
index ec0f39d..483ca49 100644
--- a/ui/main_window.py
+++ b/ui/main_window.py
@@ -10,10 +10,23 @@ from PyQt6.QtWidgets import (
     QMainWindow, QWidget, QHBoxLayout, QVBoxLayout,
     QSplitter, QStatusBar, QLabel, QPushButton,
     QToolBar, QSizePolicy, QApplication, QFrame,
+    QAbstractSpinBox, QComboBox,
 )
-from PyQt6.QtCore import Qt, QTimer, pyqtSlot
+from PyQt6.QtCore import Qt, QTimer, QObject, QEvent, pyqtSlot
 import os
 
+
+class _WheelBlocker(QObject):
+    """App-level event filter: blocks accidental scroll-wheel changes on
+    spin boxes, combo boxes and sliders that don't have keyboard focus."""
+    def eventFilter(self, obj, event):
+        if event.type() == QEvent.Type.Wheel:
+            if isinstance(obj, (QAbstractSpinBox, QComboBox)):
+                if not obj.hasFocus():
+                    event.ignore()
+                    return True
+        return super().eventFilter(obj, event)
+
 from devices.analog_input    import AnalogInputDevice
 from devices.digital_io      import DigitalIODevice
 from devices.serial_device   import SerialDevice
@@ -52,6 +65,9 @@ class MainWindow(QMainWindow):
         self._win_plot         = None
         self._win_settings     = None
 
+        self._wheel_blocker = _WheelBlocker(self)
+        QApplication.instance().installEventFilter(self._wheel_blocker)
+
         self._init_demo_devices()
         self._build_ui()
         self._connect_signals()
@@ -345,6 +361,7 @@ class MainWindow(QMainWindow):
 
     def _clear_history(self):
         self.engine.clear_history()
+        self.processor.clear_history()
         self._chart.refresh()
         self._status.setText("History cleared.")