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+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2016-2018 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.
+#
+# ###########################################################################*/
+"""This module contains a DataViewer with a view selector.
+"""
+
+__authors__ = ["V. Valls"]
+__license__ = "MIT"
+__date__ = "12/02/2019"
+
+from silx.gui import qt
+from .DataViewer import DataViewer
+from .DataViewerSelector import DataViewerSelector
+
+
+class DataViewerFrame(qt.QWidget):
+ """
+ A :class:`DataViewer` with a view selector.
+
+ .. image:: img/DataViewerFrame.png
+
+ This widget provides the same API as :class:`DataViewer`. Therefore, for more
+ documentation, take a look at the documentation of the class
+ :class:`DataViewer`.
+
+ .. code-block:: python
+
+ import numpy
+ data = numpy.random.rand(500,500)
+ viewer = DataViewerFrame()
+ viewer.setData(data)
+ viewer.setVisible(True)
+
+ """
+
+ displayedViewChanged = qt.Signal(object)
+ """Emitted when the displayed view changes"""
+
+ dataChanged = qt.Signal()
+ """Emitted when the data changes"""
+
+ def __init__(self, parent=None):
+ """
+ Constructor
+
+ :param qt.QWidget parent:
+ """
+ super(DataViewerFrame, self).__init__(parent)
+
+ class _DataViewer(DataViewer):
+ """Overwrite methods to avoid to create views while the instance
+ is not created. `initializeViews` have to be called manually."""
+
+ def _initializeViews(self):
+ pass
+
+ def initializeViews(self):
+ """Avoid to create views while the instance is not created."""
+ super(_DataViewer, self)._initializeViews()
+
+ def _createDefaultViews(self, parent):
+ """Expose the original `createDefaultViews` function"""
+ return super(_DataViewer, self).createDefaultViews()
+
+ def createDefaultViews(self, parent=None):
+ """Allow the DataViewerFrame to override this function"""
+ return self.parent().createDefaultViews(parent)
+
+ self.__dataViewer = _DataViewer(self)
+ # initialize views when `self.__dataViewer` is set
+ self.__dataViewer.initializeViews()
+ self.__dataViewer.setFrameShape(qt.QFrame.StyledPanel)
+ self.__dataViewer.setFrameShadow(qt.QFrame.Sunken)
+ self.__dataViewerSelector = DataViewerSelector(self, self.__dataViewer)
+ self.__dataViewerSelector.setFlat(True)
+
+ layout = qt.QVBoxLayout(self)
+ layout.setContentsMargins(0, 0, 0, 0)
+ layout.setSpacing(0)
+ layout.addWidget(self.__dataViewer, 1)
+ layout.addWidget(self.__dataViewerSelector)
+ self.setLayout(layout)
+
+ self.__dataViewer.dataChanged.connect(self.__dataChanged)
+ self.__dataViewer.displayedViewChanged.connect(self.__displayedViewChanged)
+
+ def __dataChanged(self):
+ """Called when the data is changed"""
+ self.dataChanged.emit()
+
+ def __displayedViewChanged(self, view):
+ """Called when the displayed view changes"""
+ self.displayedViewChanged.emit(view)
+
+ def setGlobalHooks(self, hooks):
+ """Set a data view hooks for all the views
+
+ :param DataViewHooks context: The hooks to use
+ """
+ self.__dataViewer.setGlobalHooks(hooks)
+
+ def getReachableViews(self):
+ return self.__dataViewer.getReachableViews()
+
+ def availableViews(self):
+ """Returns the list of registered views
+
+ :rtype: List[DataView]
+ """
+ return self.__dataViewer.availableViews()
+
+ def currentAvailableViews(self):
+ """Returns the list of available views for the current data
+
+ :rtype: List[DataView]
+ """
+ return self.__dataViewer.currentAvailableViews()
+
+ def createDefaultViews(self, parent=None):
+ """Create and returns available views which can be displayed by default
+ by the data viewer. It is called internally by the widget. It can be
+ overwriten to provide a different set of viewers.
+
+ :param QWidget parent: QWidget parent of the views
+ :rtype: List[silx.gui.data.DataViews.DataView]
+ """
+ return self.__dataViewer._createDefaultViews(parent)
+
+ def addView(self, view):
+ """Allow to add a view to the dataview.
+
+ If the current data support this view, it will be displayed.
+
+ :param DataView view: A dataview
+ """
+ return self.__dataViewer.addView(view)
+
+ def removeView(self, view):
+ """Allow to remove a view which was available from the dataview.
+
+ If the view was displayed, the widget will be updated.
+
+ :param DataView view: A dataview
+ """
+ return self.__dataViewer.removeView(view)
+
+ def setData(self, data):
+ """Set the data to view.
+
+ It mostly can be a h5py.Dataset or a numpy.ndarray. Other kind of
+ objects will be displayed as text rendering.
+
+ :param numpy.ndarray data: The data.
+ """
+ self.__dataViewer.setData(data)
+
+ def data(self):
+ """Returns the data"""
+ return self.__dataViewer.data()
+
+ def setDisplayedView(self, view):
+ self.__dataViewer.setDisplayedView(view)
+
+ def displayedView(self):
+ return self.__dataViewer.displayedView()
+
+ def displayMode(self):
+ return self.__dataViewer.displayMode()
+
+ def setDisplayMode(self, modeId):
+ """Set the displayed view using display mode.
+
+ Change the displayed view according to the requested mode.
+
+ :param int modeId: Display mode, one of
+
+ - `EMPTY_MODE`: display nothing
+ - `PLOT1D_MODE`: display the data as a curve
+ - `PLOT2D_MODE`: display the data as an image
+ - `TEXT_MODE`: display the data as a text
+ - `ARRAY_MODE`: display the data as a table
+ """
+ return self.__dataViewer.setDisplayMode(modeId)
+
+ def getViewFromModeId(self, modeId):
+ """See :meth:`DataViewer.getViewFromModeId`"""
+ return self.__dataViewer.getViewFromModeId(modeId)
+
+ def replaceView(self, modeId, newView):
+ """Replace one of the builtin data views with a custom view.
+ See :meth:`DataViewer.replaceView` for more documentation.
+
+ :param DataViews.DataView newView: New data view
+ :return: True if replacement was successful, else False
+ """
+ return self.__dataViewer.replaceView(modeId, newView)