diff options
Diffstat (limited to 'silx/gui/data/DataViewer.py')
| -rw-r--r-- | silx/gui/data/DataViewer.py | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/silx/gui/data/DataViewer.py b/silx/gui/data/DataViewer.py index 5e0b25e..4db2863 100644 --- a/silx/gui/data/DataViewer.py +++ b/silx/gui/data/DataViewer.py @@ -37,7 +37,7 @@ from silx.utils.property import classproperty __authors__ = ["V. Valls"] __license__ = "MIT" -__date__ = "26/02/2018" +__date__ = "24/04/2018" _logger = logging.getLogger(__name__) @@ -167,8 +167,10 @@ class DataViewer(qt.QFrame): self.__currentAvailableViews = [] self.__currentView = None self.__data = None + self.__info = None self.__useAxisSelection = False self.__userSelectedView = None + self.__hooks = None self.__views = [] self.__index = {} @@ -182,6 +184,15 @@ class DataViewer(qt.QFrame): self.__views = list(views) self.setDisplayMode(DataViews.EMPTY_MODE) + def setGlobalHooks(self, hooks): + """Set a data view hooks for all the views + + :param DataViewHooks context: The hooks to use + """ + self.__hooks = hooks + for v in self.__views: + v.setHooks(hooks) + 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 @@ -250,7 +261,7 @@ class DataViewer(qt.QFrame): """ previous = self.__numpySelection.blockSignals(True) self.__numpySelection.clear() - info = DataViews.DataInfo(self.__data) + info = self._getInfo() axisNames = self.__currentView.axesNames(self.__data, info) if info.isArray and info.size != 0 and self.__data is not None and axisNames is not None: self.__useAxisSelection = True @@ -359,6 +370,8 @@ class DataViewer(qt.QFrame): :param DataView view: A dataview """ + if self.__hooks is not None: + view.setHooks(self.__hooks) self.__views.append(view) # TODO It can be skipped if the view do not support the data self.__updateAvailableViews() @@ -390,8 +403,8 @@ class DataViewer(qt.QFrame): Update available views from the current data. """ data = self.__data + info = self._getInfo() # sort available views according to priority - info = DataViews.DataInfo(data) priorities = [v.getDataPriority(data, info) for v in self.__views] views = zip(priorities, self.__views) views = filter(lambda t: t[0] > DataViews.DataView.UNSUPPORTED, views) @@ -490,6 +503,7 @@ class DataViewer(qt.QFrame): :param numpy.ndarray data: The data. """ self.__data = data + self._invalidateInfo() self.__displayedData = None self.__updateView() self.__updateNumpySelectionAxis() @@ -512,6 +526,21 @@ class DataViewer(qt.QFrame): """Returns the data""" return self.__data + def _invalidateInfo(self): + """Invalidate DataInfo cache.""" + self.__info = None + + def _getInfo(self): + """Returns the DataInfo of the current selected data. + + This value is cached. + + :rtype: DataInfo + """ + if self.__info is None: + self.__info = DataViews.DataInfo(self.__data) + return self.__info + def displayMode(self): """Returns the current display mode""" return self.__currentView.modeId() @@ -552,6 +581,8 @@ class DataViewer(qt.QFrame): isReplaced = False for idx, view in enumerate(self.__views): if view.modeId() == modeId: + if self.__hooks is not None: + newView.setHooks(self.__hooks) self.__views[idx] = newView isReplaced = True break |