Waveform plot progress update

sohstationviewer/view/plotting/waveform_dialog.py

@@ -6,8 +6,10 @@ from typing import List
 
 from PySide2 import QtCore, QtWidgets
 
-from sohstationviewer.view.plotting.waveform_processor import \
+from sohstationviewer.view.plotting.waveform_processor import (
     WaveformChannelProcessor
+)
+
 from sohstationviewer.view.util.enums import LogType
 from sohstationviewer.view.util.plot_func_names import plot_functions
 from sohstationviewer.view.plotting.plotting_widget import plotting_widget
@@ -27,6 +29,7 @@ class WaveformWidget(plotting_widget.PlottingWidget):
 
     finished = QtCore.Signal()
     stopped = QtCore.Signal()
+    notification = QtCore.Signal(str)
 
     def __init__(self, parent, tracking_box, name):
         super().__init__(parent, tracking_box, name)
@@ -45,6 +48,9 @@ class WaveformWidget(plotting_widget.PlottingWidget):
         # zooming in on the waveform plot.
         self.is_working = False
         self.finished.connect(self.stopped)
+        self.notification.connect(
+            lambda msg: display_tracking_info(self.tracking_box, msg)
+        )
 
     def reset_widget(self):
         """
@@ -226,11 +232,17 @@ class WaveformWidget(plotting_widget.PlottingWidget):
         """
         if channel_id is not None:
             self.data_processors.pop(0)
+            self.notification.emit(f'Plotting channel {channel_id}...')
             self.plot_single_channel(channel_data, channel_id)
+            self.draw()
+            # QApplication.processEvents()
         try:
             channel_processor = self.data_processors[0]
+            self.notification.emit(f'Processing channel '
+                                   f'{channel_processor.channel_id}...')
             self.thread_pool.start(channel_processor)
         except IndexError:
+            self.notification.emit('Finishing up...')
             self.clean_up()
 
         except Exception as e: