Merge pull request #590 from nmearl/fix-autorange-with-labels

Fix autorange with labels

specviz/widgets/plotting.py

@@ -8,7 +8,7 @@
 import qtawesome as qta
 from qtpy.QtCore import Signal, QEvent
 from qtpy.QtWidgets import (QColorDialog, QMainWindow, QMdiSubWindow,
-                            QMessageBox, QErrorMessage, QWidget)
+                            QMessageBox, QErrorMessage, QApplication)
 from qtpy.uic import loadUi
 
 from astropy.units import Quantity
@@ -60,7 +60,7 @@ def __init__(self, model, *args, **kwargs):
             self._on_line_labels)
 
         self._central_widget.reset_view_action.triggered.connect(
-            lambda: self.plot_widget.autoRange())
+            self._on_reset_view)
 
     @property
     def tool_bar(self):
@@ -82,6 +82,17 @@ def proxy_model(self):
     def _on_current_item_changed(self, current_idx, prev_idx):
         self._current_item_index = current_idx
 
+    def _on_reset_view(self):
+        """
+        Resets the visible range of the plot taking into consideration only the
+        PlotDataItem objects currently attached.
+        """
+        self.plot_widget.autoRange(
+                items=[item for item in self.plot_widget.listDataItems()
+                       if isinstance(item, PlotDataItem)])
+
+        self.plot_widget.sigRangeChanged.emit(*self.plot_widget.viewRange())
+
     def _on_change_color(self):
         """
         Listens for color changed events in plot windows, gets the currently
@@ -620,7 +631,11 @@ def _show_linelists_window(self, *args, **kwargs):
                 self.linelist_window = LineListsWindow(self)
                 self.line_labels_plotter = LineLabelsPlotter(self)
 
-                self.sigRangeChanged.connect(self.line_labels_plotter.process_zoom_signal)
+                self.sigRangeChanged.connect(
+                    self.line_labels_plotter.process_zoom_signal)
+                self.sigRangeChanged.connect(
+                    lambda: self.line_labels_plotter._handle_mouse_events(
+                        QEvent.Enter))
 
             self.linelist_window.show()