[plot] separate plotting of dataarrays and tags

nixview/ui/plotscreen.py

@@ -1,4 +1,4 @@
-from nixview.util.enums import PlotterTypes
+from nixview.util.enums import NodeType, PlotterTypes
 from PyQt5.QtWidgets import QGroupBox, QHBoxLayout, QLabel, QPushButton, QSizePolicy, QSlider, QVBoxLayout, QWidget
 from PyQt5.QtCore import pyqtSignal, Qt
 import matplotlib
@@ -11,7 +11,6 @@ try:
 except ImportError as e:
     print("cannot import matplotlib, headless mode?", e)
 from matplotlib.widgets import Slider
-from IPython import embed
 
 from nixview.util.file_handler import FileHandler
 from nixview.util.dataview import DataView
@@ -554,10 +553,11 @@ class PlotScreen(QWidget):
     def on_view_changed(self):
         self._pan_slider.setEnabled(self.plotter.can_pan_horizontally)
 
-    def plot(self, item):
+    def plot_data_array(self, item):
         try:
             self._data_view = DataView(item, self._file_handler)
         except ValueError as e:
+            print("ping!")
             communicator.plot_error.emit("error in plotscreen.plot %s" % e)
             return
         if self._data_view is None:
@@ -594,3 +594,16 @@ class PlotScreen(QWidget):
             self.plotter.plot()
         else:
             self._container.set_plotter(None)
+    
+    def plot_tag(self, item):
+        pass
+
+    def plot(self, item):
+        if item.entity_type == NodeType.DataArray:
+            self.plot_data_array(item)
+        elif item.entity_type == NodeType.MultiTag or item.entity_type == NodeType.Tag:
+            self.plot_tag(item)
+        else:
+            communicator.plot_error.emit("error in plotscreen.plot cannot plot entity of type%s" % item.entity_type)
+            return
+