1 files changed, 34 insertions, 6 deletions
diff --git a/silx/gui/plot/StatsWidget.py b/silx/gui/plot/StatsWidget.py
index 5e2dc58..52b7e5c 100644
--- a/silx/gui/plot/StatsWidget.py
+++ b/silx/gui/plot/StatsWidget.py
@@ -424,7 +424,7 @@ class _StatsWidgetBase(object):
 
         if self._displayOnlyActItem:
             connections.append(
-                (self._plotWrapper.sigCurrentChanged, self._updateItemObserve))
+                (self._plotWrapper.sigCurrentChanged, self._updateCurrentItem))
         else:
             connections += [
                 (self._plotWrapper.sigItemAdded, self._addItem),
@@ -441,6 +441,11 @@ class _StatsWidgetBase(object):
         """Reload table depending on mode"""
         raise NotImplementedError('Base class')
 
+    def _updateCurrentItem(self, *args):
+        """specific callback for the sigCurrentChanged and with the
+        _displayOnlyActItem option."""
+        raise NotImplementedError('Base class')
+
     def _updateStats(self, item):
         """Update displayed information for given plot item
 
@@ -643,8 +648,6 @@ class StatsTable(_StatsWidgetBase, TableWidget):
 
     def _updateItemObserve(self, *args):
         """Reload table depending on mode"""
-        if self.getUpdateMode() is UpdateMode.MANUAL:
-            return
         self._removeAllItems()
 
         # Get selected or all items from the plot
@@ -657,6 +660,27 @@ class StatsTable(_StatsWidgetBase, TableWidget):
         for item in items:
             self._addItem(item)
 
+    def _updateCurrentItem(self, *args):
+        """specific callback for the sigCurrentChanged and with the
+        _displayOnlyActItem option.
+
+        Behavior: create the tableItems if does not exists.
+         If exists, update it only when we are in 'auto' mode"""
+        if self.getUpdateMode() is UpdateMode.MANUAL:
+            # when sigCurrentChanged is giving the current item
+            if len(args) > 0 and isinstance(args[0], (plotitems.Curve, plotitems.Histogram, plotitems.ImageData, plotitems.Scatter)):
+                item = args[0]
+                tableItems = self._itemToTableItems(item)
+                # if the table does not exists yet
+                if len(tableItems) == 0:
+                    self._updateItemObserve()
+            else:
+                # in this case no current item
+                self._updateItemObserve(args)
+        else:
+            # auto mode
+            self._updateItemObserve(args)
+
     def _plotCurrentChanged(self, current):
         """Handle change of current item and update selection in table
 
@@ -1323,6 +1347,7 @@ class _BaseLineStatsWidget(_StatsWidgetBase, qt.QWidget):
 
     def setStats(self, statsHandler):
         """Set which stats to display and the associated formatting.
+
         :param StatsHandler statsHandler:
             Set the statistics to be displayed and how to format them using
         """
@@ -1391,6 +1416,9 @@ class _BaseLineStatsWidget(_StatsWidgetBase, qt.QWidget):
         _item = items[0] if len(items) is 1 else None
         self._setItem(_item)
 
+    def _updateCurrentItem(self):
+        self._updateItemObserve()
+
     def _createLayout(self):
         """create an instance of the main QLayout"""
         raise NotImplementedError('Base class')
@@ -1541,12 +1569,12 @@ class BasicGridStatsWidget(qt.QWidget):
                                     only visible ones.
     :param int statsPerLine: number of statistic to be displayed per line
 
-    .. snapshotqt:: img/_BasicGridStatsWidget.png
+    .. snapshotqt:: img/BasicGridStatsWidget.png
      :width: 600px
      :align: center
 
      from silx.gui.plot import Plot1D
-     from silx.gui.plot.StatsWidget import _BasicGridStatsWidget
+     from silx.gui.plot.StatsWidget import BasicGridStatsWidget
 
      plot = Plot1D()
      x = range(100)
@@ -1554,7 +1582,7 @@ class BasicGridStatsWidget(qt.QWidget):
      plot.addCurve(x, y, legend='curve_0')
      plot.setActiveCurve('curve_0')
 
-     widget = _BasicGridStatsWidget(plot=plot, kind='curve')
+     widget = BasicGridStatsWidget(plot=plot, kind='curve')
      widget.show()
     """