[orange widget] Add Metadata table to display metadata of the experiment.

/close #8

id06workflow/core/experiment/__init__.py

@@ -93,6 +93,10 @@ class Experiment(object):
         assert geometry is None or isinstance(geometry, GeometryBase)
         self._geometry = geometry
 
+    @property
+    def metadata(self):
+        return self.__metadata
+
     @property
     def roi(self):
         # TODO: manage several rois
@@ -252,3 +256,11 @@ class Experiment(object):
 
     def hasOperation(self, operationID):
         raise NotImplementedError('Not implemented yet')
+
+    @property
+    def nslices(self):
+        if self.data is None:
+            return 0
+        else:
+            assert self.data.ndim is 3
+            return self.data.shape[0]

orangecontrib/id06workflow/widgets/icons/metadata.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="48px"
+   height="48px"
+   id="svg2985"
+   version="1.1"
+   inkscape:version="0.48.5 r10040"
+   sodipodi:docname="New document 2">
+  <defs
+     id="defs2987" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="7"
+     inkscape:cx="0.14285714"
+     inkscape:cy="24"
+     inkscape:current-layer="layer1"
+     showgrid="true"
+     inkscape:grid-bbox="true"
+     inkscape:document-units="px"
+     inkscape:window-width="1920"
+     inkscape:window-height="1098"
+     inkscape:window-x="0"
+     inkscape:window-y="31"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata2990">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer">
+    <rect
+       style="fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
+       id="rect2993"
+       width="36.42857"
+       height="32.57143"
+       x="6.2857141"
+       y="8.7142859" />
+    <rect
+       style="fill:none;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
+       id="rect3797"
+       width="13"
+       height="32.714287"
+       x="6.1428571"
+       y="8.5714283" />
+    <rect
+       style="fill:none;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
+       id="rect3799"
+       width="9.8571434"
+       height="32.571426"
+       x="32.857143"
+       y="8.7142859" />
+    <rect
+       style="fill:none;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
+       id="rect3801"
+       width="7.1428571"
+       height="32.42857"
+       x="25.714285"
+       y="8.7142859" />
+    <rect
+       style="fill:none;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
+       id="rect3803"
+       width="36.714287"
+       height="6.8571429"
+       x="6.1428571"
+       y="8.4285717" />
+  </g>
+</svg>

orangecontrib/id06workflow/widgets/metadatatable.py

+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2016-2017 European Synchrotron Radiation Facility
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# ###########################################################################*/
+
+__authors__ = ["H. Payno"]
+__license__ = "MIT"
+__date__ = "16/10/2018"
+
+
+from silx.gui import qt
+from Orange.widgets import gui
+from Orange.widgets.widget import OWWidget
+from Orange.canvas.registry.description import InputSignal, OutputSignal
+from id06workflow.gui.mapping import MappingPlot
+from id06workflow.core.experiment import Experiment
+from id06workflow.core.experiment.operation.mapping import GradientRemoval
+from id06workflow.core.types import _Image
+
+
+class MetadataTableOW(OWWidget):
+    """
+
+    """
+    name = "Metadata table"
+    id = "orange.widgets.id06workflow.metadatatable"
+    description = "Display "
+    icon = "icons/metadata.svg"
+
+    priority = 4
+    category = "esrfWidgets"
+    keywords = ["metadata", "experiment", "motors"]
+
+    inputs = [InputSignal(name="data", type=Experiment, handler='_process')]
+    outputs = [OutputSignal(name="data", type=Experiment)]
+
+    want_main_area = True
+    resizing_enabled = True
+    compress_signal = False
+
+    def __init__(self):
+        super().__init__()
+
+        layout = gui.vBox(self.mainArea, 'metadata table').layout()
+        self._table = qt.QTableWidget(parent=self)
+        layout.addWidget(self._table)
+
+    def _process(self, experiment):
+        if experiment is None:
+            return
+        self._table.clear()
+        v_header = []
+        [v_header.append(str(i)) for i in range(experiment.nslices)]
+        self._table.setRowCount(len(v_header))
+        self._table.setVerticalHeaderLabels(v_header)
+
+        columnCount = None
+        for row, metadata_slice in enumerate(experiment.metadata):
+            if columnCount is None:
+                columnCount = len(metadata_slice)
+                self._table.setColumnCount(columnCount)
+                self._table.setHorizontalHeaderLabels(metadata_slice.keys())
+            elif columnCount != len(metadata_slice):
+                raise ValueError('Metadata keys are incoherent')
+
+            for column, info in enumerate(metadata_slice):
+                _item = qt.QTableWidgetItem()
+                _item.setText(metadata_slice[info])
+                # _item.setFlags(qt.Qt.ItemIsEnabled | qt.Qt.ItemIsSelectable)
+                self._table.setItem(row, column, _item)
+
+        self.send("data", experiment)