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+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2017-2021 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.
+#
+# ###########################################################################*/
+"""
+Module containing widgets displaying stats from items of a plot.
+"""
+
+__authors__ = ["H. Payno"]
+__license__ = "MIT"
+__date__ = "24/07/2018"
+
+
+from collections import OrderedDict
+from contextlib import contextmanager
+import logging
+import weakref
+import functools
+import numpy
+import enum
+from silx.utils.proxy import docstring
+from silx.utils.enum import Enum as _Enum
+from silx.gui import qt
+from silx.gui import icons
+from silx.gui.plot import stats as statsmdl
+from silx.gui.widgets.TableWidget import TableWidget
+from silx.gui.plot.stats.statshandler import StatsHandler, StatFormatter
+from silx.gui.plot.items.core import ItemChangedType
+from silx.gui.widgets.FlowLayout import FlowLayout
+from . import PlotWidget
+from . import items as plotitems
+
+
+_logger = logging.getLogger(__name__)
+
+
+@enum.unique
+class UpdateMode(_Enum):
+ AUTO = 'auto'
+ MANUAL = 'manual'
+
+
+# Helper class to handle specific calls to PlotWidget and SceneWidget
+
+
+class _Wrapper(qt.QObject):
+ """Base class for connection with PlotWidget and SceneWidget.
+
+ This class is used when no PlotWidget or SceneWidget is connected.
+
+ :param plot: The plot to be used
+ """
+
+ sigItemAdded = qt.Signal(object)
+ """Signal emitted when a new item is added.
+
+ It provides the added item.
+ """
+
+ sigItemRemoved = qt.Signal(object)
+ """Signal emitted when an item is (about to be) removed.
+
+ It provides the removed item.
+ """
+
+ sigCurrentChanged = qt.Signal(object)
+ """Signal emitted when the current item has changed.
+
+ It provides the current item.
+ """
+
+ sigVisibleDataChanged = qt.Signal()
+ """Signal emitted when the visible data area has changed"""
+
+ def __init__(self, plot=None):
+ super(_Wrapper, self).__init__(parent=None)
+ self._plotRef = None if plot is None else weakref.ref(plot)
+
+ def getPlot(self):
+ """Returns the plot attached to this widget"""
+ return None if self._plotRef is None else self._plotRef()
+
+ def getItems(self):
+ """Returns the list of items in the plot
+
+ :rtype: List[object]
+ """
+ return ()
+
+ def getSelectedItems(self):
+ """Returns the list of selected items in the plot
+
+ :rtype: List[object]
+ """
+ return ()
+
+ def setCurrentItem(self, item):
+ """Set the current/active item in the plot
+
+ :param item: The plot item to set as active/current
+ """
+ pass
+
+ def getLabel(self, item):
+ """Returns the label of the given item.
+
+ :param item:
+ :rtype: str
+ """
+ return ''
+
+ def getKind(self, item):
+ """Returns the kind of an item or None if not supported
+
+ :param item:
+ :rtype: Union[str,None]
+ """
+ return None
+
+
+class _PlotWidgetWrapper(_Wrapper):
+ """Class handling PlotWidget specific calls and signal connections
+
+ See :class:`._Wrapper` for documentation
+
+ :param PlotWidget plot:
+ """
+
+ def __init__(self, plot):
+ assert isinstance(plot, PlotWidget)
+ super(_PlotWidgetWrapper, self).__init__(plot)
+ plot.sigItemAdded.connect(self.sigItemAdded.emit)
+ plot.sigItemAboutToBeRemoved.connect(self.sigItemRemoved.emit)
+ plot.sigActiveCurveChanged.connect(self._activeCurveChanged)
+ plot.sigActiveImageChanged.connect(self._activeImageChanged)
+ plot.sigActiveScatterChanged.connect(self._activeScatterChanged)
+ plot.sigPlotSignal.connect(self._limitsChanged)
+
+ def _activeChanged(self, kind):
+ """Handle change of active curve/image/scatter"""
+ plot = self.getPlot()
+ if plot is not None:
+ item = plot._getActiveItem(kind=kind)
+ if item is None or self.getKind(item) is not None:
+ self.sigCurrentChanged.emit(item)
+
+ def _activeCurveChanged(self, previous, current):
+ self._activeChanged(kind='curve')
+
+ def _activeImageChanged(self, previous, current):
+ self._activeChanged(kind='image')
+
+ def _activeScatterChanged(self, previous, current):
+ self._activeChanged(kind='scatter')
+
+ def _limitsChanged(self, event):
+ """Handle change of plot area limits."""
+ if event['event'] == 'limitsChanged':
+ self.sigVisibleDataChanged.emit()
+
+ def getItems(self):
+ plot = self.getPlot()
+ if plot is None:
+ return ()
+ else:
+ return [item for item in plot.getItems() if item.isVisible()]
+
+ def getSelectedItems(self):
+ plot = self.getPlot()
+ items = []
+ if plot is not None:
+ for kind in plot._ACTIVE_ITEM_KINDS:
+ item = plot._getActiveItem(kind=kind)
+ if item is not None:
+ items.append(item)
+ return tuple(items)
+
+ def setCurrentItem(self, item):
+ plot = self.getPlot()
+ if plot is not None:
+ kind = self.getKind(item)
+ if kind in plot._ACTIVE_ITEM_KINDS:
+ if plot._getActiveItem(kind) != item:
+ plot._setActiveItem(kind, item.getName())
+
+ def getLabel(self, item):
+ return item.getName()
+
+ def getKind(self, item):
+ if isinstance(item, plotitems.Curve):
+ return 'curve'
+ elif isinstance(item, plotitems.ImageData):
+ return 'image'
+ elif isinstance(item, plotitems.Scatter):
+ return 'scatter'
+ elif isinstance(item, plotitems.Histogram):
+ return 'histogram'
+ else:
+ return None
+
+
+class _SceneWidgetWrapper(_Wrapper):
+ """Class handling SceneWidget specific calls and signal connections
+
+ See :class:`._Wrapper` for documentation
+
+ :param SceneWidget plot:
+ """
+
+ def __init__(self, plot):
+ # Lazy-import to avoid circular imports
+ from ..plot3d.SceneWidget import SceneWidget
+
+ assert isinstance(plot, SceneWidget)
+ super(_SceneWidgetWrapper, self).__init__(plot)
+ plot.getSceneGroup().sigItemAdded.connect(self.sigItemAdded)
+ plot.getSceneGroup().sigItemRemoved.connect(self.sigItemRemoved)
+ plot.selection().sigCurrentChanged.connect(self._currentChanged)
+ # sigVisibleDataChanged is never emitted
+
+ def _currentChanged(self, current, previous):
+ self.sigCurrentChanged.emit(current)
+
+ def getItems(self):
+ plot = self.getPlot()
+ return () if plot is None else tuple(plot.getSceneGroup().visit())
+
+ def getSelectedItems(self):
+ plot = self.getPlot()
+ return () if plot is None else (plot.selection().getCurrentItem(),)
+
+ def setCurrentItem(self, item):
+ plot = self.getPlot()
+ if plot is not None:
+ plot.selection().setCurrentItem(item)
+
+ def getLabel(self, item):
+ return item.getLabel()
+
+ def getKind(self, item):
+ from ..plot3d import items as plot3ditems
+
+ if isinstance(item, (plot3ditems.ImageData,
+ plot3ditems.ScalarField3D)):
+ return 'image'
+ elif isinstance(item, (plot3ditems.Scatter2D,
+ plot3ditems.Scatter3D)):
+ return 'scatter'
+ else:
+ return None
+
+
+class _ScalarFieldViewWrapper(_Wrapper):
+ """Class handling ScalarFieldView specific calls and signal connections
+
+ See :class:`._Wrapper` for documentation
+
+ :param SceneWidget plot:
+ """
+
+ def __init__(self, plot):
+ # Lazy-import to avoid circular imports
+ from ..plot3d.ScalarFieldView import ScalarFieldView
+ from ..plot3d.items import ScalarField3D
+
+ assert isinstance(plot, ScalarFieldView)
+ super(_ScalarFieldViewWrapper, self).__init__(plot)
+ self._item = ScalarField3D()
+ self._dataChanged()
+ plot.sigDataChanged.connect(self._dataChanged)
+ # sigItemAdded, sigItemRemoved, sigVisibleDataChanged are never emitted
+
+ def _dataChanged(self):
+ plot = self.getPlot()
+ if plot is not None:
+ self._item.setData(plot.getData(copy=False), copy=False)
+ self.sigCurrentChanged.emit(self._item)
+
+ def getItems(self):
+ plot = self.getPlot()
+ return () if plot is None else (self._item,)
+
+ def getSelectedItems(self):
+ return self.getItems()
+
+ def setCurrentItem(self, item):
+ pass
+
+ def getLabel(self, item):
+ return 'Data'
+
+ def getKind(self, item):
+ return 'image'
+
+
+class _Container(object):
+ """Class to contain a plot item.
+
+ This is apparently needed for compatibility with PySide2,
+
+ :param QObject obj:
+ """
+ def __init__(self, obj):
+ self._obj = obj
+
+ def __call__(self):
+ return self._obj
+
+
+class _StatsWidgetBase(object):
+ """
+ Base class for all widgets which want to display statistics
+ """
+
+ def __init__(self, statsOnVisibleData, displayOnlyActItem):
+ self._displayOnlyActItem = displayOnlyActItem
+ self._statsOnVisibleData = statsOnVisibleData
+ self._statsHandler = None
+ self._updateMode = UpdateMode.AUTO
+
+ self.__default_skipped_events = (
+ ItemChangedType.ALPHA,
+ ItemChangedType.COLOR,
+ ItemChangedType.COLORMAP,
+ ItemChangedType.SYMBOL,
+ ItemChangedType.SYMBOL_SIZE,
+ ItemChangedType.LINE_WIDTH,
+ ItemChangedType.LINE_STYLE,
+ ItemChangedType.LINE_BG_COLOR,
+ ItemChangedType.FILL,
+ ItemChangedType.HIGHLIGHTED_COLOR,
+ ItemChangedType.HIGHLIGHTED_STYLE,
+ ItemChangedType.TEXT,
+ ItemChangedType.OVERLAY,
+ ItemChangedType.VISUALIZATION_MODE,
+ )
+
+ self._plotWrapper = _Wrapper()
+ self._dealWithPlotConnection(create=True)
+
+ def setPlot(self, plot):
+ """Define the plot to interact with
+
+ :param Union[PlotWidget,SceneWidget,None] plot:
+ The plot containing the items on which statistics are applied
+ """
+ try:
+ import OpenGL
+ except ImportError:
+ has_opengl = False
+ else:
+ has_opengl = True
+ from ..plot3d.SceneWidget import SceneWidget # Lazy import
+ self._dealWithPlotConnection(create=False)
+ self.clear()
+ if plot is None:
+ self._plotWrapper = _Wrapper()
+ elif isinstance(plot, PlotWidget):
+ self._plotWrapper = _PlotWidgetWrapper(plot)
+ else:
+ if has_opengl is True:
+ if isinstance(plot, SceneWidget):
+ self._plotWrapper = _SceneWidgetWrapper(plot)
+ else: # Expect a ScalarFieldView
+ self._plotWrapper = _ScalarFieldViewWrapper(plot)
+ else:
+ _logger.warning('OpenGL not installed, %s not managed' % ('SceneWidget qnd ScalarFieldView'))
+ self._dealWithPlotConnection(create=True)
+
+ 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
+ """
+ if statsHandler is None:
+ statsHandler = StatsHandler(statFormatters=())
+ elif isinstance(statsHandler, (list, tuple)):
+ statsHandler = StatsHandler(statsHandler)
+ assert isinstance(statsHandler, StatsHandler)
+
+ self._statsHandler = statsHandler
+
+ def getStatsHandler(self):
+ """Returns the :class:`StatsHandler` in use.
+
+ :rtype: StatsHandler
+ """
+ return self._statsHandler
+
+ def getPlot(self):
+ """Returns the plot attached to this widget
+
+ :rtype: Union[PlotWidget,SceneWidget,None]
+ """
+ return self._plotWrapper.getPlot()
+
+ def _dealWithPlotConnection(self, create=True):
+ """Manage connection to plot signals
+
+ Note: connection on Item are managed by _addItem and _removeItem methods
+ """
+ connections = [] # List of (signal, slot) to connect/disconnect
+ if self._statsOnVisibleData:
+ connections.append(
+ (self._plotWrapper.sigVisibleDataChanged, self._updateAllStats))
+
+ if self._displayOnlyActItem:
+ connections.append(
+ (self._plotWrapper.sigCurrentChanged, self._updateCurrentItem))
+ else:
+ connections += [
+ (self._plotWrapper.sigItemAdded, self._addItem),
+ (self._plotWrapper.sigItemRemoved, self._removeItem),
+ (self._plotWrapper.sigCurrentChanged, self._plotCurrentChanged)]
+
+ for signal, slot in connections:
+ if create:
+ signal.connect(slot)
+ else:
+ signal.disconnect(slot)
+
+ def _updateItemObserve(self, *args):
+ """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, data_changed=False, roi_changed=False):
+ """Update displayed information for given plot item
+
+ :param item: The plot item
+ :param bool data_changed: is the item data changed.
+ :param bool roi_changed: is the associated roi changed.
+ """
+ raise NotImplementedError('Base class')
+
+ def _updateAllStats(self):
+ """Update stats for all rows in the table"""
+ raise NotImplementedError('Base class')
+
+ def setDisplayOnlyActiveItem(self, displayOnlyActItem):
+ """Toggle display off all items or only the active/selected one
+
+ :param bool displayOnlyActItem:
+ True if we want to only show active item
+ """
+ self._displayOnlyActItem = displayOnlyActItem
+
+ def setStatsOnVisibleData(self, b):
+ """Toggle computation of statistics on whole data or only visible ones.
+
+ .. warning:: When visible data is activated we will process to a simple
+ filtering of visible data by the user. The filtering is a
+ simple data sub-sampling. No interpolation is made to fit
+ data to boundaries.
+
+ :param bool b: True if we want to apply statistics only on visible data
+ """
+ if self._statsOnVisibleData != b:
+ self._dealWithPlotConnection(create=False)
+ self._statsOnVisibleData = b
+ self._dealWithPlotConnection(create=True)
+ self._updateAllStats()
+
+ def _addItem(self, item):
+ """Add a plot item to the table
+
+ If item is not supported, it is ignored.
+
+ :param item: The plot item
+ :returns: True if the item is added to the widget.
+ :rtype: bool
+ """
+ raise NotImplementedError('Base class')
+
+ def _removeItem(self, item):
+ """Remove table items corresponding to given plot item from the table.
+
+ :param item: The plot item
+ """
+ raise NotImplementedError('Base class')
+
+ def _plotCurrentChanged(self, current):
+ """Handle change of current item and update selection in table
+
+ :param current:
+ """
+ raise NotImplementedError('Base class')
+
+ def clear(self):
+ """clear GUI"""
+ pass
+
+ def _skipPlotItemChangedEvent(self, event):
+ """
+
+ :param ItemChangedtype event: event to filter or not
+ :return: True if we want to ignore this ItemChangedtype
+ :rtype: bool
+ """
+ return event in self.__default_skipped_events
+
+ def setUpdateMode(self, mode):
+ """Set the way to update the displayed statistics.
+
+ :param mode: mode requested for update
+ :type mode: Union[str,UpdateMode]
+ """
+ mode = UpdateMode.from_value(mode)
+ if mode != self._updateMode:
+ self._updateMode = mode
+ self._updateModeHasChanged()
+
+ def getUpdateMode(self):
+ """Returns update mode (See :meth:`setUpdateMode`).
+
+ :return: update mode
+ :rtype: UpdateMode
+ """
+ return self._updateMode
+
+ def _updateModeHasChanged(self):
+ """callback when the update mode has changed"""
+ pass
+
+
+class StatsTable(_StatsWidgetBase, TableWidget):
+ """
+ TableWidget displaying for each items contained by the Plot some
+ information:
+
+ * legend
+ * minimal value
+ * maximal value
+ * standard deviation (std)
+
+ :param QWidget parent: The widget's parent.
+ :param Union[PlotWidget,SceneWidget] plot:
+ :class:`PlotWidget` or :class:`SceneWidget` instance on which to operate
+ """
+
+ _LEGEND_HEADER_DATA = 'legend'
+ _KIND_HEADER_DATA = 'kind'
+
+ sigUpdateModeChanged = qt.Signal(object)
+ """Signal emitted when the update mode changed"""
+
+ def __init__(self, parent=None, plot=None):
+ TableWidget.__init__(self, parent)
+ _StatsWidgetBase.__init__(self, statsOnVisibleData=False,
+ displayOnlyActItem=False)
+
+ # Init for _displayOnlyActItem == False
+ assert self._displayOnlyActItem is False
+ self.setSelectionBehavior(qt.QAbstractItemView.SelectRows)
+ self.setSelectionMode(qt.QAbstractItemView.SingleSelection)
+ self.currentItemChanged.connect(self._currentItemChanged)
+
+ self.setRowCount(0)
+ self.setColumnCount(2)
+
+ # Init headers
+ headerItem = qt.QTableWidgetItem(self._LEGEND_HEADER_DATA.title())
+ headerItem.setData(qt.Qt.UserRole, self._LEGEND_HEADER_DATA)
+ self.setHorizontalHeaderItem(0, headerItem)
+ headerItem = qt.QTableWidgetItem(self._KIND_HEADER_DATA.title())
+ headerItem.setData(qt.Qt.UserRole, self._KIND_HEADER_DATA)
+ self.setHorizontalHeaderItem(1, headerItem)
+
+ self.setSortingEnabled(True)
+ self.setPlot(plot)
+
+ @contextmanager
+ def _disableSorting(self):
+ """Context manager that disables table sorting
+
+ Previous state is restored when leaving
+ """
+ sorting = self.isSortingEnabled()
+ if sorting:
+ self.setSortingEnabled(False)
+ yield
+ if sorting:
+ self.setSortingEnabled(sorting)
+
+ 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
+ """
+ self._removeAllItems()
+ _StatsWidgetBase.setStats(self, statsHandler)
+
+ self.setRowCount(0)
+ self.setColumnCount(len(self._statsHandler.stats) + 2) # + legend and kind
+
+ for index, stat in enumerate(self._statsHandler.stats.values()):
+ headerItem = qt.QTableWidgetItem(stat.name.capitalize())
+ headerItem.setData(qt.Qt.UserRole, stat.name)
+ if stat.description is not None:
+ headerItem.setToolTip(stat.description)
+ self.setHorizontalHeaderItem(2 + index, headerItem)
+
+ horizontalHeader = self.horizontalHeader()
+ horizontalHeader.setSectionResizeMode(qt.QHeaderView.ResizeToContents)
+
+ self._updateItemObserve()
+
+ def setPlot(self, plot):
+ """Define the plot to interact with
+
+ :param Union[PlotWidget,SceneWidget,None] plot:
+ The plot containing the items on which statistics are applied
+ """
+ _StatsWidgetBase.setPlot(self, plot)
+ self._updateItemObserve()
+
+ def clear(self):
+ """Define the plot to interact with
+
+ :param Union[PlotWidget,SceneWidget,None] plot:
+ The plot containing the items on which statistics are applied
+ """
+ self._removeAllItems()
+
+ def _updateItemObserve(self, *args):
+ """Reload table depending on mode"""
+ self._removeAllItems()
+
+ # Get selected or all items from the plot
+ if self._displayOnlyActItem: # Only selected
+ items = self._plotWrapper.getSelectedItems()
+ else: # All items
+ items = self._plotWrapper.getItems()
+
+ # Add items to the plot
+ 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
+
+ :param current:
+ """
+ row = self._itemToRow(current)
+ if row is None:
+ if self.currentRow() >= 0:
+ self.setCurrentCell(-1, -1)
+ elif row != self.currentRow():
+ self.setCurrentCell(row, 0)
+
+ def _tableItemToItem(self, tableItem):
+ """Find the plot item corresponding to a table item
+
+ :param QTableWidgetItem tableItem:
+ :rtype: QObject
+ """
+ container = tableItem.data(qt.Qt.UserRole)
+ return container()
+
+ def _itemToRow(self, item):
+ """Find the row corresponding to a plot item
+
+ :param item: The plot item
+ :return: The corresponding row index
+ :rtype: Union[int,None]
+ """
+ for row in range(self.rowCount()):
+ tableItem = self.item(row, 0)
+ if self._tableItemToItem(tableItem) == item:
+ return row
+ return None
+
+ def _itemToTableItems(self, item):
+ """Find all table items corresponding to a plot item
+
+ :param item: The plot item
+ :return: An ordered dict of column name to QTableWidgetItem mapping
+ for the given plot item.
+ :rtype: OrderedDict
+ """
+ result = OrderedDict()
+ row = self._itemToRow(item)
+ if row is not None:
+ for column in range(self.columnCount()):
+ tableItem = self.item(row, column)
+ if self._tableItemToItem(tableItem) != item:
+ _logger.error("Table item/plot item mismatch")
+ else:
+ header = self.horizontalHeaderItem(column)
+ name = header.data(qt.Qt.UserRole)
+ result[name] = tableItem
+ return result
+
+ def _plotItemChanged(self, event):
+ """Handle modifications of the items.
+
+ :param event:
+ """
+ if self.getUpdateMode() is UpdateMode.MANUAL:
+ return
+ if self._skipPlotItemChangedEvent(event) is True:
+ return
+ else:
+ item = self.sender()
+ self._updateStats(item, data_changed=True)
+ # deal with stat items visibility
+ if event is ItemChangedType.VISIBLE:
+ if len(self._itemToTableItems(item).items()) > 0:
+ item_0 = list(self._itemToTableItems(item).values())[0]
+ row_index = item_0.row()
+ self.setRowHidden(row_index, not item.isVisible())
+
+ def _addItem(self, item):
+ """Add a plot item to the table
+
+ If item is not supported, it is ignored.
+
+ :param item: The plot item
+ :returns: True if the item is added to the widget.
+ :rtype: bool
+ """
+ if self._itemToRow(item) is not None:
+ _logger.info("Item already present in the table")
+ self._updateStats(item)
+ return True
+
+ kind = self._plotWrapper.getKind(item)
+ if kind not in statsmdl.BASIC_COMPATIBLE_KINDS:
+ _logger.info("Item has not a supported type: %s", item)
+ return False
+
+ # Prepare table items
+ tableItems = [
+ qt.QTableWidgetItem(), # Legend
+ qt.QTableWidgetItem()] # Kind
+
+ for column in range(2, self.columnCount()):
+ header = self.horizontalHeaderItem(column)
+ name = header.data(qt.Qt.UserRole)
+
+ formatter = self._statsHandler.formatters[name]
+ if formatter:
+ tableItem = formatter.tabWidgetItemClass()
+ else:
+ tableItem = qt.QTableWidgetItem()
+
+ tooltip = self._statsHandler.stats[name].getToolTip(kind=kind)
+ if tooltip is not None:
+ tableItem.setToolTip(tooltip)
+
+ tableItems.append(tableItem)
+
+ # Disable sorting while adding table items
+ with self._disableSorting():
+ # Add a row to the table
+ self.setRowCount(self.rowCount() + 1)
+
+ # Add table items to the last row
+ row = self.rowCount() - 1
+ for column, tableItem in enumerate(tableItems):
+ tableItem.setData(qt.Qt.UserRole, _Container(item))
+ tableItem.setFlags(
+ qt.Qt.ItemIsEnabled | qt.Qt.ItemIsSelectable)
+ self.setItem(row, column, tableItem)
+
+ # Update table items content
+ self._updateStats(item, data_changed=True)
+
+ # Listen for item changes
+ # Using queued connection to avoid issue with sender
+ # being that of the signal calling the signal
+ item.sigItemChanged.connect(self._plotItemChanged,
+ qt.Qt.QueuedConnection)
+
+ return True
+
+ def _removeItem(self, item):
+ """Remove table items corresponding to given plot item from the table.
+
+ :param item: The plot item
+ """
+ row = self._itemToRow(item)
+ if row is None:
+ kind = self._plotWrapper.getKind(item)
+ if kind in statsmdl.BASIC_COMPATIBLE_KINDS:
+ _logger.error("Removing item that is not in table: %s", str(item))
+ return
+ item.sigItemChanged.disconnect(self._plotItemChanged)
+ self.removeRow(row)
+
+ def _removeAllItems(self):
+ """Remove content of the table"""
+ for row in range(self.rowCount()):
+ tableItem = self.item(row, 0)
+ item = self._tableItemToItem(tableItem)
+ item.sigItemChanged.disconnect(self._plotItemChanged)
+ self.clearContents()
+ self.setRowCount(0)
+
+ def _updateStats(self, item, data_changed=False, roi_changed=False):
+ """Update displayed information for given plot item
+
+ :param item: The plot item
+ :param bool data_changed: is the item data changed.
+ :param bool roi_changed: is the associated roi changed.
+ """
+ if item is None:
+ return
+ plot = self.getPlot()
+ if plot is None:
+ _logger.info("Plot not available")
+ return
+
+ row = self._itemToRow(item)
+ if row is None:
+ _logger.error("This item is not in the table: %s", str(item))
+ return
+
+ statsHandler = self.getStatsHandler()
+ if statsHandler is not None:
+ # _updateStats is call when the plot visible area change.
+ # to force stats update we consider roi changed
+ if self._statsOnVisibleData:
+ roi_changed = True
+ else:
+ roi_changed = False
+ stats = statsHandler.calculate(
+ item, plot, self._statsOnVisibleData,
+ data_changed=data_changed, roi_changed=roi_changed)
+ else:
+ stats = {}
+
+ with self._disableSorting():
+ for name, tableItem in self._itemToTableItems(item).items():
+ if name == self._LEGEND_HEADER_DATA:
+ text = self._plotWrapper.getLabel(item)
+ tableItem.setText(text)
+ elif name == self._KIND_HEADER_DATA:
+ tableItem.setText(self._plotWrapper.getKind(item))
+ else:
+ value = stats.get(name)
+ if value is None:
+ _logger.error("Value not found for: %s", name)
+ tableItem.setText('-')
+ else:
+ tableItem.setText(str(value))
+
+ def _updateAllStats(self, is_request=False):
+ """Update stats for all rows in the table
+
+ :param bool is_request: True if come from a manual request
+ """
+ if self.getUpdateMode() is UpdateMode.MANUAL and not is_request:
+ return
+ with self._disableSorting():
+ for row in range(self.rowCount()):
+ tableItem = self.item(row, 0)
+ item = self._tableItemToItem(tableItem)
+ self._updateStats(item, data_changed=is_request)
+
+ def _currentItemChanged(self, current, previous):
+ """Handle change of selection in table and sync plot selection
+
+ :param QTableWidgetItem current:
+ :param QTableWidgetItem previous:
+ """
+ if current and current.row() >= 0:
+ item = self._tableItemToItem(current)
+ self._plotWrapper.setCurrentItem(item)
+
+ def setDisplayOnlyActiveItem(self, displayOnlyActItem):
+ """Toggle display off all items or only the active/selected one
+
+ :param bool displayOnlyActItem:
+ True if we want to only show active item
+ """
+ if self._displayOnlyActItem == displayOnlyActItem:
+ return
+ self._dealWithPlotConnection(create=False)
+ if not self._displayOnlyActItem:
+ self.currentItemChanged.disconnect(self._currentItemChanged)
+
+ _StatsWidgetBase.setDisplayOnlyActiveItem(self, displayOnlyActItem)
+
+ self._updateItemObserve()
+ self._dealWithPlotConnection(create=True)
+
+ if not self._displayOnlyActItem:
+ self.currentItemChanged.connect(self._currentItemChanged)
+ self.setSelectionMode(qt.QAbstractItemView.SingleSelection)
+ else:
+ self.setSelectionMode(qt.QAbstractItemView.NoSelection)
+
+ def _updateModeHasChanged(self):
+ self.sigUpdateModeChanged.emit(self._updateMode)
+
+
+class UpdateModeWidget(qt.QWidget):
+ """Widget used to select the mode of update"""
+ sigUpdateModeChanged = qt.Signal(object)
+ """signal emitted when the mode for update changed"""
+ sigUpdateRequested = qt.Signal()
+ """signal emitted when an manual request for example is activate"""
+
+ def __init__(self, parent=None):
+ qt.QWidget.__init__(self, parent)
+ self.setLayout(qt.QHBoxLayout())
+ self._buttonGrp = qt.QButtonGroup(parent=self)
+ self._buttonGrp.setExclusive(True)
+
+ spacer = qt.QSpacerItem(20, 20,
+ qt.QSizePolicy.Expanding,
+ qt.QSizePolicy.Minimum)
+ self.layout().addItem(spacer)
+
+ self._autoRB = qt.QRadioButton('auto', parent=self)
+ self.layout().addWidget(self._autoRB)
+ self._buttonGrp.addButton(self._autoRB)
+
+ self._manualRB = qt.QRadioButton('manual', parent=self)
+ self.layout().addWidget(self._manualRB)
+ self._buttonGrp.addButton(self._manualRB)
+ self._manualRB.setChecked(True)
+
+ refresh_icon = icons.getQIcon('view-refresh')
+ self._updatePB = qt.QPushButton(refresh_icon, '', parent=self)
+ self.layout().addWidget(self._updatePB)
+
+ # connect signal / SLOT
+ self._updatePB.clicked.connect(self._updateRequested)
+ self._manualRB.toggled.connect(self._manualButtonToggled)
+ self._autoRB.toggled.connect(self._autoButtonToggled)
+
+ def _manualButtonToggled(self, checked):
+ if checked:
+ self.setUpdateMode(UpdateMode.MANUAL)
+ self.sigUpdateModeChanged.emit(self.getUpdateMode())
+
+ def _autoButtonToggled(self, checked):
+ if checked:
+ self.setUpdateMode(UpdateMode.AUTO)
+ self.sigUpdateModeChanged.emit(self.getUpdateMode())
+
+ def _updateRequested(self):
+ if self.getUpdateMode() is UpdateMode.MANUAL:
+ self.sigUpdateRequested.emit()
+
+ def setUpdateMode(self, mode):
+ """Set the way to update the displayed statistics.
+
+ :param mode: mode requested for update
+ :type mode: Union[str,UpdateMode]
+ """
+ mode = UpdateMode.from_value(mode)
+
+ if mode is UpdateMode.AUTO:
+ if not self._autoRB.isChecked():
+ self._autoRB.setChecked(True)
+ elif mode is UpdateMode.MANUAL:
+ if not self._manualRB.isChecked():
+ self._manualRB.setChecked(True)
+ else:
+ raise ValueError('mode', mode, 'is not recognized')
+
+ def getUpdateMode(self):
+ """Returns update mode (See :meth:`setUpdateMode`).
+
+ :return: the active update mode
+ :rtype: UpdateMode
+ """
+ if self._manualRB.isChecked():
+ return UpdateMode.MANUAL
+ elif self._autoRB.isChecked():
+ return UpdateMode.AUTO
+ else:
+ raise RuntimeError("No mode selected")
+
+ def showRadioButtons(self, show):
+ """show / hide the QRadioButtons
+
+ :param bool show: if True make RadioButton visible
+ """
+ self._autoRB.setVisible(show)
+ self._manualRB.setVisible(show)
+
+
+class _OptionsWidget(qt.QToolBar):
+
+ def __init__(self, parent=None, updateMode=None, displayOnlyActItem=False):
+ assert updateMode is not None
+ qt.QToolBar.__init__(self, parent)
+ self.setIconSize(qt.QSize(16, 16))
+
+ action = qt.QAction(self)
+ action.setIcon(icons.getQIcon("stats-active-items"))
+ action.setText("Active items only")
+ action.setToolTip("Display stats for active items only.")
+ action.setCheckable(True)
+ action.setChecked(displayOnlyActItem)
+ self.__displayActiveItems = action
+
+ action = qt.QAction(self)
+ action.setIcon(icons.getQIcon("stats-whole-items"))
+ action.setText("All items")
+ action.setToolTip("Display stats for all available items.")
+ action.setCheckable(True)
+ self.__displayWholeItems = action
+
+ action = qt.QAction(self)
+ action.setIcon(icons.getQIcon("stats-visible-data"))
+ action.setText("Use the visible data range")
+ action.setToolTip("Use the visible data range.<br/>"
+ "If activated the data is filtered to only use"
+ "visible data of the plot."
+ "The filtering is a data sub-sampling."
+ "No interpolation is made to fit data to"
+ "boundaries.")
+ action.setCheckable(True)
+ self.__useVisibleData = action
+
+ action = qt.QAction(self)
+ action.setIcon(icons.getQIcon("stats-whole-data"))
+ action.setText("Use the full data range")
+ action.setToolTip("Use the full data range.")
+ action.setCheckable(True)
+ action.setChecked(True)
+ self.__useWholeData = action
+
+ self.addAction(self.__displayWholeItems)
+ self.addAction(self.__displayActiveItems)
+ self.addSeparator()
+ self.addAction(self.__useVisibleData)
+ self.addAction(self.__useWholeData)
+
+ self.itemSelection = qt.QActionGroup(self)
+ self.itemSelection.setExclusive(True)
+ self.itemSelection.addAction(self.__displayActiveItems)
+ self.itemSelection.addAction(self.__displayWholeItems)
+
+ self.dataRangeSelection = qt.QActionGroup(self)
+ self.dataRangeSelection.setExclusive(True)
+ self.dataRangeSelection.addAction(self.__useWholeData)
+ self.dataRangeSelection.addAction(self.__useVisibleData)
+
+ self.__updateStatsAction = qt.QAction(self)
+ self.__updateStatsAction.setIcon(icons.getQIcon("view-refresh"))
+ self.__updateStatsAction.setText("update statistics")
+ self.__updateStatsAction.setToolTip("update statistics")
+ self.__updateStatsAction.setCheckable(False)
+ self._updateStatsSep = self.addSeparator()
+ self.addAction(self.__updateStatsAction)
+
+ self._setUpdateMode(mode=updateMode)
+
+ # expose API
+ self.sigUpdateStats = self.__updateStatsAction.triggered
+
+ def isActiveItemMode(self):
+ return self.itemSelection.checkedAction() is self.__displayActiveItems
+
+ def setDisplayActiveItems(self, only_active):
+ self.__displayActiveItems.setChecked(only_active)
+ self.__displayWholeItems.setChecked(not only_active)
+
+ def isVisibleDataRangeMode(self):
+ return self.dataRangeSelection.checkedAction() is self.__useVisibleData
+
+ def setVisibleDataRangeModeEnabled(self, enabled):
+ """Enable/Disable the visible data range mode
+
+ :param bool enabled: True to allow user to choose
+ stats on visible data
+ """
+ self.__useVisibleData.setEnabled(enabled)
+ if not enabled:
+ self.__useWholeData.setChecked(True)
+
+ def _setUpdateMode(self, mode):
+ self.__updateStatsAction.setVisible(mode == UpdateMode.MANUAL)
+ self._updateStatsSep.setVisible(mode == UpdateMode.MANUAL)
+
+ def getUpdateStatsAction(self):
+ """
+
+ :return: the action for the automatic mode
+ :rtype: QAction
+ """
+ return self.__updateStatsAction
+
+
+class StatsWidget(qt.QWidget):
+ """
+ Widget displaying a set of :class:`Stat` to be displayed on a
+ :class:`StatsTable` and to be apply on items contained in the :class:`Plot`
+ Also contains options to:
+
+ * compute statistics on all the data or on visible data only
+ * show statistics of all items or only the active one
+
+ :param QWidget parent: Qt parent
+ :param Union[PlotWidget,SceneWidget] plot:
+ The plot containing items on which we want statistics.
+ :param StatsHandler stats:
+ Set the statistics to be displayed and how to format them using
+ """
+
+ sigVisibilityChanged = qt.Signal(bool)
+ """Signal emitted when the visibility of this widget changes.
+
+ It Provides the visibility of the widget.
+ """
+
+ NUMBER_FORMAT = '{0:.3f}'
+
+ def __init__(self, parent=None, plot=None, stats=None):
+ qt.QWidget.__init__(self, parent)
+ self.setLayout(qt.QVBoxLayout())
+ self.layout().setContentsMargins(0, 0, 0, 0)
+ self._options = _OptionsWidget(parent=self, updateMode=UpdateMode.MANUAL)
+ self.layout().addWidget(self._options)
+ self._statsTable = StatsTable(parent=self, plot=plot)
+ self._statsTable.setDisplayOnlyActiveItem(self._options.isActiveItemMode())
+ self._options._setUpdateMode(mode=self._statsTable.getUpdateMode())
+ self.setStats(stats)
+
+ self.layout().addWidget(self._statsTable)
+
+ old = self._statsTable.blockSignals(True)
+ self._options.itemSelection.triggered.connect(
+ self._optSelectionChanged)
+ self._options.dataRangeSelection.triggered.connect(
+ self._optDataRangeChanged)
+ self._optDataRangeChanged()
+ self._statsTable.blockSignals(old)
+
+ self._statsTable.sigUpdateModeChanged.connect(self._options._setUpdateMode)
+ callback = functools.partial(self._getStatsTable()._updateAllStats, is_request=True)
+ self._options.sigUpdateStats.connect(callback)
+
+ def _getStatsTable(self):
+ """Returns the :class:`StatsTable` used by this widget.
+
+ :rtype: StatsTable
+ """
+ return self._statsTable
+
+ def showEvent(self, event):
+ self.sigVisibilityChanged.emit(True)
+ qt.QWidget.showEvent(self, event)
+
+ def hideEvent(self, event):
+ self.sigVisibilityChanged.emit(False)
+ qt.QWidget.hideEvent(self, event)
+
+ def _optSelectionChanged(self, action=None):
+ self._getStatsTable().setDisplayOnlyActiveItem(
+ self._options.isActiveItemMode())
+
+ def _optDataRangeChanged(self, action=None):
+ self._getStatsTable().setStatsOnVisibleData(
+ self._options.isVisibleDataRangeMode())
+
+ # Proxy methods
+
+ @docstring(StatsTable)
+ def setStats(self, statsHandler):
+ return self._getStatsTable().setStats(statsHandler=statsHandler)
+
+ @docstring(StatsTable)
+ def setPlot(self, plot):
+ self._options.setVisibleDataRangeModeEnabled(
+ plot is None or isinstance(plot, PlotWidget))
+ return self._getStatsTable().setPlot(plot=plot)
+
+ @docstring(StatsTable)
+ def getPlot(self):
+ return self._getStatsTable().getPlot()
+
+ @docstring(StatsTable)
+ def setDisplayOnlyActiveItem(self, displayOnlyActItem):
+ old = self._options.blockSignals(True)
+ # update the options
+ self._options.setDisplayActiveItems(displayOnlyActItem)
+ self._options.blockSignals(old)
+ return self._getStatsTable().setDisplayOnlyActiveItem(
+ displayOnlyActItem=displayOnlyActItem)
+
+ @docstring(StatsTable)
+ def setStatsOnVisibleData(self, b):
+ return self._getStatsTable().setStatsOnVisibleData(b=b)
+
+ @docstring(StatsTable)
+ def getUpdateMode(self):
+ return self._statsTable.getUpdateMode()
+
+ @docstring(StatsTable)
+ def setUpdateMode(self, mode):
+ self._statsTable.setUpdateMode(mode)
+
+
+DEFAULT_STATS = StatsHandler((
+ (statsmdl.StatMin(), StatFormatter()),
+ statsmdl.StatCoordMin(),
+ (statsmdl.StatMax(), StatFormatter()),
+ statsmdl.StatCoordMax(),
+ statsmdl.StatCOM(),
+ (('mean', numpy.mean), StatFormatter()),
+ (('std', numpy.std), StatFormatter()),
+))
+
+
+class BasicStatsWidget(StatsWidget):
+ """
+ Widget defining a simple set of :class:`Stat` to be displayed on a
+ :class:`StatsWidget`.
+
+ :param QWidget parent: Qt parent
+ :param PlotWidget plot:
+ The plot containing items on which we want statistics.
+ :param StatsHandler stats:
+ Set the statistics to be displayed and how to format them using
+
+ .. snapshotqt:: img/BasicStatsWidget.png
+ :width: 300px
+ :align: center
+
+ from silx.gui.plot import Plot1D
+ from silx.gui.plot.StatsWidget import BasicStatsWidget
+
+ plot = Plot1D()
+ x = range(100)
+ y = x
+ plot.addCurve(x, y, legend='curve_0')
+ plot.setActiveCurve('curve_0')
+
+ widget = BasicStatsWidget(plot=plot)
+ widget.show()
+ """
+ def __init__(self, parent=None, plot=None):
+ StatsWidget.__init__(self, parent=parent, plot=plot,
+ stats=DEFAULT_STATS)
+
+
+class _BaseLineStatsWidget(_StatsWidgetBase, qt.QWidget):
+ """
+ Widget made to display stats into a QLayout with couple (QLabel, QLineEdit)
+ created for each stats.
+ The layout can be defined prior of adding any statistic.
+
+ :param QWidget parent: Qt parent
+ :param Union[PlotWidget,SceneWidget] plot:
+ The plot containing items on which we want statistics.
+ :param str kind: the kind of plotitems we want to display
+ :param StatsHandler stats:
+ Set the statistics to be displayed and how to format them using
+ :param bool statsOnVisibleData: compute statistics for the whole data or
+ only visible ones.
+ """
+
+ sigUpdateModeChanged = qt.Signal(object)
+ """Signal emitted when the update mode changed"""
+
+ def __init__(self, parent=None, plot=None, kind='curve', stats=None,
+ statsOnVisibleData=False):
+ self._item_kind = kind
+ """The item displayed"""
+ self._statQlineEdit = {}
+ """list of legends actually displayed"""
+ self._n_statistics_per_line = 4
+ """number of statistics displayed per line in the grid layout"""
+ qt.QWidget.__init__(self, parent)
+ _StatsWidgetBase.__init__(self,
+ statsOnVisibleData=statsOnVisibleData,
+ displayOnlyActItem=True)
+ self.setLayout(self._createLayout())
+ self.setPlot(plot)
+ if stats is not None:
+ self.setStats(stats)
+
+ def _addItemForStatistic(self, statistic):
+ assert isinstance(statistic, statsmdl.StatBase)
+ assert statistic.name in self._statsHandler.stats
+
+ self.layout().setSpacing(2)
+ self.layout().setContentsMargins(2, 2, 2, 2)
+
+ if isinstance(self.layout(), qt.QGridLayout):
+ parent = self
+ else:
+ widget = qt.QWidget(parent=self)
+ parent = widget
+
+ qLabel = qt.QLabel(statistic.name + ':', parent=parent)
+ qLineEdit = qt.QLineEdit('', parent=parent)
+ qLineEdit.setReadOnly(True)
+
+ self._addStatsWidgetsToLayout(qLabel=qLabel, qLineEdit=qLineEdit)
+ self._statQlineEdit[statistic.name] = qLineEdit
+
+ def setPlot(self, plot):
+ """Define the plot to interact with
+
+ :param Union[PlotWidget,SceneWidget,None] plot:
+ The plot containing the items on which statistics are applied
+ """
+ _StatsWidgetBase.setPlot(self, plot)
+ self._updateAllStats()
+
+ def _addStatsWidgetsToLayout(self, qLabel, qLineEdit):
+ raise NotImplementedError('Base class')
+
+ 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
+ """
+ _StatsWidgetBase.setStats(self, statsHandler)
+ for statName, stat in list(self._statsHandler.stats.items()):
+ self._addItemForStatistic(stat)
+ self._updateAllStats()
+
+ def _activeItemChanged(self, kind, previous, current):
+ if self.getUpdateMode() is UpdateMode.MANUAL:
+ return
+ if kind == self._item_kind:
+ self._updateAllStats()
+
+ def _updateAllStats(self):
+ plot = self.getPlot()
+ if plot is not None:
+ _items = self._plotWrapper.getSelectedItems()
+
+ def kind_filter(_item):
+ return self._plotWrapper.getKind(_item) == self.getKind()
+ items = list(filter(kind_filter, _items))
+ assert len(items) in (0, 1)
+ if len(items) == 1:
+ self._setItem(items[0])
+
+ def setKind(self, kind):
+ """Change the kind of active item to display
+ :param str kind: kind of item to display information for ('curve' ...)
+ """
+ if self._item_kind != kind:
+ self._item_kind = kind
+ self._updateItemObserve()
+
+ def getKind(self):
+ """
+ :return: kind of item we want to compute statistic for
+ :rtype: str
+ """
+ return self._item_kind
+
+ def _setItem(self, item, data_changed=True):
+ if item is None:
+ for stat_name, stat_widget in self._statQlineEdit.items():
+ stat_widget.setText('')
+ elif (self._statsHandler is not None and len(
+ self._statsHandler.stats) > 0):
+ plot = self.getPlot()
+ if plot is not None:
+ statsValDict = self._statsHandler.calculate(item,
+ plot,
+ self._statsOnVisibleData,
+ data_changed=data_changed)
+ for statName, statVal in list(statsValDict.items()):
+ self._statQlineEdit[statName].setText(statVal)
+
+ def _updateItemObserve(self, *argv):
+ if self.getUpdateMode() is UpdateMode.MANUAL:
+ return
+ assert self._displayOnlyActItem
+ _items = self._plotWrapper.getSelectedItems()
+
+ def kind_filter(_item):
+ return self._plotWrapper.getKind(_item) == self.getKind()
+ items = list(filter(kind_filter, _items))
+ assert len(items) in (0, 1)
+ _item = items[0] if len(items) == 1 else None
+ self._setItem(_item, data_changed=True)
+
+ def _updateCurrentItem(self):
+ self._updateItemObserve()
+
+ def _createLayout(self):
+ """create an instance of the main QLayout"""
+ raise NotImplementedError('Base class')
+
+ def _addItem(self, item):
+ raise NotImplementedError('Display only the active item')
+
+ def _removeItem(self, item):
+ raise NotImplementedError('Display only the active item')
+
+ def _plotCurrentChanged(self, current):
+ raise NotImplementedError('Display only the active item')
+
+ def _updateModeHasChanged(self):
+ self.sigUpdateModeChanged.emit(self._updateMode)
+
+
+class _BasicLineStatsWidget(_BaseLineStatsWidget):
+ def __init__(self, parent=None, plot=None, kind='curve',
+ stats=DEFAULT_STATS, statsOnVisibleData=False):
+ _BaseLineStatsWidget.__init__(self, parent=parent, kind=kind,
+ plot=plot, stats=stats,
+ statsOnVisibleData=statsOnVisibleData)
+
+ def _createLayout(self):
+ return FlowLayout()
+
+ def _addStatsWidgetsToLayout(self, qLabel, qLineEdit):
+ # create a mother widget to make sure both qLabel & qLineEdit will
+ # always be displayed side by side
+ widget = qt.QWidget(parent=self)
+ widget.setLayout(qt.QHBoxLayout())
+ widget.layout().setSpacing(0)
+ widget.layout().setContentsMargins(0, 0, 0, 0)
+
+ widget.layout().addWidget(qLabel)
+ widget.layout().addWidget(qLineEdit)
+
+ self.layout().addWidget(widget)
+
+ def _addOptionsWidget(self, widget):
+ self.layout().addWidget(widget)
+
+
+class BasicLineStatsWidget(qt.QWidget):
+ """
+ Widget defining a simple set of :class:`Stat` to be displayed on a
+ :class:`LineStatsWidget`.
+
+ :param QWidget parent: Qt parent
+ :param Union[PlotWidget,SceneWidget] plot:
+ The plot containing items on which we want statistics.
+ :param str kind: the kind of plotitems we want to display
+ :param StatsHandler stats:
+ Set the statistics to be displayed and how to format them using
+ :param bool statsOnVisibleData: compute statistics for the whole data or
+ only visible ones.
+ """
+ def __init__(self, parent=None, plot=None, kind='curve',
+ stats=DEFAULT_STATS, statsOnVisibleData=False):
+ qt.QWidget.__init__(self, parent)
+ self.setLayout(qt.QHBoxLayout())
+ self.layout().setSpacing(0)
+ self.layout().setContentsMargins(0, 0, 0, 0)
+ self._lineStatsWidget = _BasicLineStatsWidget(parent=self, plot=plot,
+ kind=kind, stats=stats,
+ statsOnVisibleData=statsOnVisibleData)
+ self.layout().addWidget(self._lineStatsWidget)
+
+ self._options = UpdateModeWidget()
+ self._options.setUpdateMode(self._lineStatsWidget.getUpdateMode())
+ self._options.showRadioButtons(False)
+ self.layout().addWidget(self._options)
+
+ # connect Signal ? SLOT
+ self._lineStatsWidget.sigUpdateModeChanged.connect(self._options.setUpdateMode)
+ self._options.sigUpdateModeChanged.connect(self._lineStatsWidget.setUpdateMode)
+ self._options.sigUpdateRequested.connect(self._lineStatsWidget._updateAllStats)
+
+ def showControl(self, visible):
+ self._options.setVisible(visible)
+
+ # Proxy methods
+
+ @docstring(_BasicLineStatsWidget)
+ def setUpdateMode(self, mode):
+ self._lineStatsWidget.setUpdateMode(mode=mode)
+
+ @docstring(_BasicLineStatsWidget)
+ def getUpdateMode(self):
+ return self._lineStatsWidget.getUpdateMode()
+
+ @docstring(_BasicLineStatsWidget)
+ def setPlot(self, plot):
+ self._lineStatsWidget.setPlot(plot=plot)
+
+ @docstring(_BasicLineStatsWidget)
+ def setStats(self, statsHandler):
+ self._lineStatsWidget.setStats(statsHandler=statsHandler)
+
+ @docstring(_BasicLineStatsWidget)
+ def setKind(self, kind):
+ self._lineStatsWidget.setKind(kind=kind)
+
+ @docstring(_BasicLineStatsWidget)
+ def getKind(self):
+ return self._lineStatsWidget.getKind()
+
+ @docstring(_BasicLineStatsWidget)
+ def setStatsOnVisibleData(self, b):
+ self._lineStatsWidget.setStatsOnVisibleData(b)
+
+ @docstring(UpdateModeWidget)
+ def showRadioButtons(self, show):
+ self._options.showRadioButtons(show=show)
+
+
+class _BasicGridStatsWidget(_BaseLineStatsWidget):
+ def __init__(self, parent=None, plot=None, kind='curve',
+ stats=DEFAULT_STATS, statsOnVisibleData=False,
+ statsPerLine=4):
+ _BaseLineStatsWidget.__init__(self, parent=parent, kind=kind,
+ plot=plot, stats=stats,
+ statsOnVisibleData=statsOnVisibleData)
+ self._n_statistics_per_line = statsPerLine
+
+ def _addStatsWidgetsToLayout(self, qLabel, qLineEdit):
+ column = len(self._statQlineEdit) % self._n_statistics_per_line
+ row = len(self._statQlineEdit) // self._n_statistics_per_line
+ self.layout().addWidget(qLabel, row, column * 2)
+ self.layout().addWidget(qLineEdit, row, column * 2 + 1)
+
+ def _createLayout(self):
+ return qt.QGridLayout()
+
+
+class BasicGridStatsWidget(qt.QWidget):
+ """
+ pymca design like widget
+
+ :param QWidget parent: Qt parent
+ :param Union[PlotWidget,SceneWidget] plot:
+ The plot containing items on which we want statistics.
+ :param StatsHandler stats:
+ Set the statistics to be displayed and how to format them using
+ :param str kind: the kind of plotitems we want to display
+ :param bool statsOnVisibleData: compute statistics for the whole data or
+ only visible ones.
+ :param int statsPerLine: number of statistic to be displayed per line
+
+ .. snapshotqt:: img/BasicGridStatsWidget.png
+ :width: 600px
+ :align: center
+
+ from silx.gui.plot import Plot1D
+ from silx.gui.plot.StatsWidget import BasicGridStatsWidget
+
+ plot = Plot1D()
+ x = range(100)
+ y = x
+ plot.addCurve(x, y, legend='curve_0')
+ plot.setActiveCurve('curve_0')
+
+ widget = BasicGridStatsWidget(plot=plot, kind='curve')
+ widget.show()
+ """
+
+ def __init__(self, parent=None, plot=None, kind='curve',
+ stats=DEFAULT_STATS, statsOnVisibleData=False):
+ qt.QWidget.__init__(self, parent)
+ self.setLayout(qt.QVBoxLayout())
+ self.layout().setSpacing(0)
+ self.layout().setContentsMargins(0, 0, 0, 0)
+
+ self._options = UpdateModeWidget()
+ self._options.showRadioButtons(False)
+ self.layout().addWidget(self._options)
+
+ self._lineStatsWidget = _BasicGridStatsWidget(parent=self, plot=plot,
+ kind=kind, stats=stats,
+ statsOnVisibleData=statsOnVisibleData)
+ self.layout().addWidget(self._lineStatsWidget)
+
+ # tune options
+ self._options.setUpdateMode(self._lineStatsWidget.getUpdateMode())
+
+ # connect Signal ? SLOT
+ self._lineStatsWidget.sigUpdateModeChanged.connect(self._options.setUpdateMode)
+ self._options.sigUpdateModeChanged.connect(self._lineStatsWidget.setUpdateMode)
+ self._options.sigUpdateRequested.connect(self._lineStatsWidget._updateAllStats)
+
+ def showControl(self, visible):
+ self._options.setVisible(visible)
+
+ @docstring(_BasicGridStatsWidget)
+ def setUpdateMode(self, mode):
+ self._lineStatsWidget.setUpdateMode(mode=mode)
+
+ @docstring(_BasicGridStatsWidget)
+ def getUpdateMode(self):
+ return self._lineStatsWidget.getUpdateMode()
+
+ @docstring(_BasicGridStatsWidget)
+ def setPlot(self, plot):
+ self._lineStatsWidget.setPlot(plot=plot)
+
+ @docstring(_BasicGridStatsWidget)
+ def setStats(self, statsHandler):
+ self._lineStatsWidget.setStats(statsHandler=statsHandler)
+
+ @docstring(_BasicGridStatsWidget)
+ def setKind(self, kind):
+ self._lineStatsWidget.setKind(kind=kind)
+
+ @docstring(_BasicGridStatsWidget)
+ def getKind(self):
+ return self._lineStatsWidget.getKind()
+
+ @docstring(_BasicGridStatsWidget)
+ def setStatsOnVisibleData(self, b):
+ self._lineStatsWidget.setStatsOnVisibleData(b)
+
+ @docstring(UpdateModeWidget)
+ def showRadioButtons(self, show):
+ self._options.showRadioButtons(show=show)