[orangecontrib] normalization work

- orange signal 'spectra' is renamed xas_obj
- update to the new orange way to define Input and Output
- add a converter widget to convert from xas object to data table

doc/tutorials/example_larch.ows

@@ -8,10 +8,10 @@
 		<node id="4" name="xftf" position="(643.0, 354.0)" project_name="xas" qualified_name="orangecontrib.xas.widgets.larch.xftf.XFTFOW" title="xftf" version="" />
 	</nodes>
 	<links>
-		<link enabled="true" id="0" sink_channel="spectra" sink_node_id="2" source_channel="spectra" source_node_id="0" />
-		<link enabled="true" id="1" sink_channel="spectra" sink_node_id="3" source_channel="spectra" source_node_id="2" />
-		<link enabled="true" id="2" sink_channel="spectra" sink_node_id="4" source_channel="spectra" source_node_id="3" />
-		<link enabled="true" id="3" sink_channel="spectra" sink_node_id="1" source_channel="spectra" source_node_id="4" />
+		<link enabled="true" id="0" sink_channel="xas_obj" sink_node_id="2" source_channel="xas_obj" source_node_id="0" />
+		<link enabled="true" id="1" sink_channel="xas_obj" sink_node_id="3" source_channel="xas_obj" source_node_id="2" />
+		<link enabled="true" id="2" sink_channel="xas_obj" sink_node_id="4" source_channel="xas_obj" source_node_id="3" />
+		<link enabled="true" id="3" sink_channel="xas_obj" sink_node_id="1" source_channel="xas_obj" source_node_id="4" />
 	</links>
 	<annotations>
 		<text font-family="Helvetica" font-size="14" id="0" rect="(-14.0, 228.0, 160.0, 73.0)" type="text/plain">A File widget. Double click to open it and select the dataset file.</text>

doc/tutorials/example_pymca.ows

@@ -9,11 +9,11 @@
 		<node id="5" name="fourier transform" position="(752.0, 466.0)" project_name="xas" qualified_name="orangecontrib.xas.widgets.pymca.ft.FTOW" title="fourier transform" version="" />
 	</nodes>
 	<links>
-		<link enabled="true" id="0" sink_channel="spectra" sink_node_id="2" source_channel="spectra" source_node_id="0" />
-		<link enabled="true" id="1" sink_channel="spectra" sink_node_id="3" source_channel="spectra" source_node_id="2" />
-		<link enabled="true" id="2" sink_channel="spectra" sink_node_id="4" source_channel="spectra" source_node_id="3" />
-		<link enabled="true" id="3" sink_channel="spectra" sink_node_id="5" source_channel="spectra" source_node_id="4" />
-		<link enabled="true" id="4" sink_channel="spectra" sink_node_id="1" source_channel="spectra" source_node_id="5" />
+		<link enabled="true" id="0" sink_channel="xas_obj" sink_node_id="2" source_channel="xas_obj" source_node_id="0" />
+		<link enabled="true" id="1" sink_channel="xas_obj" sink_node_id="3" source_channel="xas_obj" source_node_id="2" />
+		<link enabled="true" id="2" sink_channel="xas_obj" sink_node_id="4" source_channel="xas_obj" source_node_id="3" />
+		<link enabled="true" id="3" sink_channel="xas_obj" sink_node_id="5" source_channel="xas_obj" source_node_id="4" />
+		<link enabled="true" id="4" sink_channel="xas_obj" sink_node_id="1" source_channel="xas_obj" source_node_id="5" />
 	</links>
 	<annotations>
 		<text font-family="Helvetica" font-size="14" id="0" rect="(-16.0, 231.0, 160.0, 73.0)" type="text/plain">A File widget. Double click to open it and select the dataset file.</text>

orangecontrib/xas/process.py

@@ -37,11 +37,13 @@ _logger = logging.getLogger(__file__)
 
 class _ProcessForOrangeMixIn(object):
     """
-    Group processing and progress display in a common class for pymca process.
+    Group processing and progress display in a common class for xasObject
+    process.
 
     If this process own a widget to display the xas object then this one should
     be named '_window'
     """
+
     def __init__(self):
         # progress
         self._progress = gui.ProgressBar(self, 100)
@@ -73,7 +75,7 @@ class _ProcessForOrangeMixIn(object):
             if hasattr(self, '_window') and hasattr(self._window, 'xasObjViewer'):
                 self._window.xasObjViewer.setXASObj(xas_obj=xas_obj)
             # emit signal for the plot
-            self.send("spectra", xas_obj)
+            self.Outputs.res_xas_obj.send(xas_obj)
 
     def _canProcess(self):
         return self.__processingThread is None or not self.__processingThread.isRunning()

orangecontrib/xas/test/test_larch_workflow.py

@@ -88,11 +88,11 @@ class TestSimpleLarchWorkflow(OrangeWorflowTest):
 
         cls.processOrangeEvents(cls)
 
-        cls.link(cls, xasInputNode, "spectra", xasPreEdgeNode, "spectra")
-        cls.link(cls, xasPreEdgeNode, "spectra", xasAutobkNode, "spectra")
-        cls.link(cls, xasAutobkNode, "spectra", xasXFTFNode, "spectra")
-        cls.link(cls, xasXFTFNode, "spectra", xasMBackNormNode, "spectra")
-        cls.link(cls, xasMBackNormNode, "spectra", xasOutputNode, "spectra")
+        cls.link(cls, xasInputNode, "xas_obj", xasPreEdgeNode, "xas_obj")
+        cls.link(cls, xasPreEdgeNode, "xas_obj", xasAutobkNode, "xas_obj")
+        cls.link(cls, xasAutobkNode, "xas_obj", xasXFTFNode, "xas_obj")
+        cls.link(cls, xasXFTFNode, "xas_obj", xasMBackNormNode, "xas_obj")
+        cls.link(cls, xasMBackNormNode, "xas_obj", xasOutputNode, "xas_obj")
         cls.processOrangeEvents(cls)
 
         cls.xasInputWidget = cls.getWidgetForNode(cls, xasInputNode)

orangecontrib/xas/test/test_pymca_workflow.py

@@ -86,11 +86,11 @@ class TestSimplePyMcaWorkflow(OrangeWorflowTest):
 
         cls.processOrangeEvents(cls)
 
-        cls.link(cls, xasInputNode, "spectra", xasNormalizationNode, "spectra")
-        cls.link(cls, xasNormalizationNode, "spectra", xasEXAFSNode, "spectra")
-        cls.link(cls, xasEXAFSNode, "spectra", xasKWeightNode, "spectra")
-        cls.link(cls, xasKWeightNode, "spectra", xasFTNode, "spectra")
-        cls.link(cls, xasFTNode, "spectra", xasOutputNode, "spectra")
+        cls.link(cls, xasInputNode, "xas_obj", xasNormalizationNode, "xas_obj")
+        cls.link(cls, xasNormalizationNode, "xas_obj", xasEXAFSNode, "xas_obj")
+        cls.link(cls, xasEXAFSNode, "xas_obj", xasKWeightNode, "xas_obj")
+        cls.link(cls, xasKWeightNode, "xas_obj", xasFTNode, "xas_obj")
+        cls.link(cls, xasFTNode, "xas_obj", xasOutputNode, "xas_obj")
         cls.processOrangeEvents(cls)
 
         cls.xasInputWidget = cls.getWidgetForNode(cls, xasInputNode)

orangecontrib/xas/utils/converter.py

@@ -51,6 +51,10 @@ class Converter(object):
 
     @staticmethod
     def toDataTable(xas_object):
+        _logger.warning('casting xas_object to Orange.data.Table might bring '
+                        'lost of some information (process flow, '
+                        'treatment result...). Only keep energy and absorbed '
+                        'beam information')
         spectra = XASObject._spectra_volume(xas_object.spectra,
                                             key='mu',
                                             dim_1=xas_object.dim1,

orangecontrib/xas/widgets/larch/autobk.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 from silx.gui.plot import LegendSelector
 import xas.core.process.larch.autobk
@@ -42,6 +44,7 @@ from xas.core.types import XASObject, Spectrum
 from xas.gui.XasObjectViewer import XasObjectViewer, _CurveOperation, ViewType
 from xas.gui.larch.autobk import _AutobkParameters
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -139,15 +142,22 @@ class AutobkOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.larch.autobk.Larch_autobk
 
     _settings = Setting(dict())
     """Store the configuration of the PyMca XASClass"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -172,6 +182,13 @@ class AutobkOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._settings = self._window._parametersWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/larch/mback.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 from silx.gui.plot import LegendSelector
 import xas.core.process.larch.mback
@@ -43,6 +45,7 @@ from xas.gui.XasObjectViewer import XasObjectViewer, ViewType
 from xas.gui.larch.mback import _MBackParameters
 from orangecontrib.xas.progress import QProgress
 from xas.gui.XasObjectViewer import _plot_norm, _plot_raw, _plot_fpp, _plot_f2
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -115,15 +118,22 @@ class MbackOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.larch.mback.Larch_mback
 
     _larchSettings = Setting(dict())
     """Store the configuration of the larch configuration"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -147,6 +157,13 @@ class MbackOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._larchSettings = self._window._parametersWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/larch/mback_norm.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 from silx.gui.plot import LegendSelector
 import xas.core.process.larch.mback_norm
@@ -43,6 +45,7 @@ from xas.gui.XasObjectViewer import XasObjectViewer, ViewType
 from xas.gui.XasObjectViewer import _plot_norm, _plot_mback_mu
 from xas.gui.larch.mback import _MBackParameters
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -115,15 +118,22 @@ class Mback_normOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.larch.mback_norm.Larch_mback_norm
 
     _larchSettings = Setting(dict())
     """Store the configuration of the larch configuration"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -147,6 +157,13 @@ class Mback_normOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._larchSettings = self._window._parametersWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/larch/pre_edge.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 from silx.gui.plot import LegendSelector
 import xas.core.process.larch.pre_edge
@@ -44,6 +46,7 @@ from xas.gui.XasObjectViewer import (_plot_edge, _plot_norm, _plot_norm_area,
                                      _plot_post_edge, _plot_pre_edge)
 from xas.gui.larch.pre_edge import _MPreEdgeParameters
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -125,15 +128,22 @@ class PreEdgeOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.larch.pre_edge.Larch_pre_edge
 
     _larchSettings = Setting(dict())
     """Store the configuration of the larch configuration"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -157,6 +167,13 @@ class PreEdgeOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._larchSettings = self._window._parametersWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/larch/xftf.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 from silx.gui.plot import LegendSelector
 import xas.core.process.larch.xftf
@@ -42,6 +44,7 @@ from xas.core.types import XASObject, Spectrum
 from xas.gui.XasObjectViewer import XasObjectViewer, _CurveOperation, ViewType
 from xas.gui.larch.xftf import _MXFTFParameters
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -163,15 +166,22 @@ class XFTFOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.larch.xftf.Larch_xftf
 
     _larchSettings = Setting(dict())
     """Store the configuration of the larch configuration"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -195,6 +205,13 @@ class XFTFOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._larchSettings = self._window._parametersWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/pymca/exafs.py

@@ -34,6 +34,9 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
+from xas.core.types import XASObject
 from PyMca5.PyMcaGui.physics.xas.XASPostEdgeParameters import \
     XASPostEdgeParameters
 from silx.gui import qt
@@ -42,9 +45,11 @@ from silx.gui.plot import LegendSelector
 import xas.core.process.pymca.exafs
 from orangecontrib.xas.process import _ProcessForOrangeMixIn, \
     ProcessRunnable
-from xas.core.types import XASObject, Spectrum
+from xas.core.types import Spectrum
 from xas.gui.XasObjectViewer import XasObjectViewer, _CurveOperation, ViewType
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
+
 
 _logger = logging.getLogger(__file__)
 
@@ -165,14 +170,22 @@ class ExafsOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.pymca.exafs.PyMca_exafs
 
     _larchSettings = Setting(dict())
     """Store the configuration of the PyMca XASClass"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -199,6 +212,13 @@ class ExafsOW(_ProcessForOrangeMixIn, OWWidget):
     def _update_settings(self):
         self._larchSettings = self._window._pymcaWindow.getParameters()
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/pymca/ft.py

@@ -34,6 +34,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from PyMca5.PyMcaGui.physics.xas.XASFourierTransformParameters import \
     XASFourierTransformParameters
 from silx.gui import qt
@@ -45,6 +47,7 @@ from orangecontrib.xas.process import _ProcessForOrangeMixIn, \
 from xas.core.types import XASObject, Spectrum
 from xas.gui.XasObjectViewer import XasObjectViewer, _CurveOperation, ViewType
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -189,14 +192,22 @@ class FTOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.pymca.ft.PyMca_ft
 
     _pymcaSettings = Setting(dict())
     """Store the configuration of the PyMca XASClass"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -219,6 +230,13 @@ class FTOW(_ProcessForOrangeMixIn, OWWidget):
         if self._latest_xas_obj:
             self.process(xas_obj=self._latest_xas_obj)
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/pymca/k_weight.py

@@ -33,6 +33,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from silx.gui import qt
 
 import xas.core.process.pymca.k_weight
@@ -40,6 +42,7 @@ from orangecontrib.xas.process import _ProcessForOrangeMixIn, \
     ProcessRunnable
 from xas.core.types import XASObject
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -79,14 +82,22 @@ class KWeightOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.pymca.k_weight.PyMca_k_weight
 
     _kWeightSetting = Setting(int(3))
     """Store the configuration of the PyMca XASClass"""
 
+    class Inputs:
+        xas_obj = Input('xas_obj', XASObject, default=True)
+        # simple compatibility for some Orange widget and especialy the
+        # 'spectroscopy add-on'
+        data_table = Input('Data', Orange.data.Table)
+
+    class Outputs:
+        res_xas_obj = Output('xas_obj', XASObject)
+        # by default we want to avoid sending 'Orange.data.Table' to avoid
+        # loosing the XASObject flow process and results.
+
     def __init__(self):
         super().__init__()
         self._latest_xas_obj = None
@@ -109,6 +120,13 @@ class KWeightOW(_ProcessForOrangeMixIn, OWWidget):
         if self._latest_xas_obj:
             self.process(self._latest_xas_obj)
 
+    @Inputs.data_table
+    def processFrmDataTable(self, data_table):
+        if data_table is None:
+            return
+        self.process(Converter.toXASObject(data_table=data_table))
+
+    @Inputs.xas_obj
     def process(self, xas_obj):
         if xas_obj is None:
             return

orangecontrib/xas/widgets/pymca/normalization.py

@@ -34,6 +34,8 @@ import logging
 from Orange.widgets import gui
 from Orange.widgets.settings import Setting
 from Orange.widgets.widget import OWWidget
+from Orange.widgets.widget import Input, Output
+import Orange.data
 from PyMca5.PyMcaGui.physics.xas.XASNormalizationParameters import \
     XASNormalizationParameters
 from silx.gui import qt
@@ -46,6 +48,7 @@ from orangecontrib.xas.process import ProcessRunnable
 from xas.core.types import XASObject
 from xas.gui.XasObjectViewer import XasObjectViewer, ViewType
 from orangecontrib.xas.progress import QProgress
+from orangecontrib.xas.utils import Converter
 
 _logger = logging.getLogger(__file__)
 
@@ -116,15 +119,22 @@ class NormalizationOW(_ProcessForOrangeMixIn, OWWidget):
     want_main_area = True
     resizing_enabled = True
 
-    inputs = [("spectra", XASObject, "process")]
-
-    outputs = [("spectra", XASObject), ("curves", tuple)]
-
     process_function = xas.core.process.pymca.normalization.PyMca_normalization
 
     _pymcaSettings = Setting(dict())
     """Store the configuration of the PyMca XASClass"""