diff options
Diffstat (limited to 'silx/gui/plot/_BaseMaskToolsWidget.py')
| -rw-r--r-- | silx/gui/plot/_BaseMaskToolsWidget.py | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/silx/gui/plot/_BaseMaskToolsWidget.py b/silx/gui/plot/_BaseMaskToolsWidget.py index 3298498..407ab11 100644 --- a/silx/gui/plot/_BaseMaskToolsWidget.py +++ b/silx/gui/plot/_BaseMaskToolsWidget.py @@ -29,7 +29,7 @@ from __future__ import division __authors__ = ["T. Vincent", "P. Knobel"] __license__ = "MIT" -__date__ = "12/04/2019" +__date__ = "08/12/2020" import os import weakref @@ -60,6 +60,9 @@ class BaseMask(qt.QObject): sigChanged = qt.Signal() """Signal emitted when the mask has changed""" + sigStateChanged = qt.Signal() + """Signal emitted for each mask commit/undo/redo operation""" + sigUndoable = qt.Signal(bool) """Signal emitted when undo becomes possible/impossible""" @@ -81,7 +84,6 @@ class BaseMask(qt.QObject): if dataItem is not None: self.setDataItem(dataItem) self.reset(self.getDataValues().shape) - super(BaseMask, self).__init__() def setDataItem(self, item): @@ -92,6 +94,13 @@ class BaseMask(qt.QObject): """ self._dataItem = item + def getDataItem(self): + """Returns current plot item the mask is on. + + :rtype: Union[~silx.gui.plot.items.Item,None] + """ + return self._dataItem + def getDataValues(self): """Return data values, as a numpy array with the same shape as the mask. @@ -152,6 +161,7 @@ class BaseMask(qt.QObject): if len(self._history) == 2: self.sigUndoable.emit(True) + self.sigStateChanged.emit() def undo(self): """Restore previous mask if any""" @@ -164,6 +174,7 @@ class BaseMask(qt.QObject): self.sigRedoable.emit(True) if len(self._history) == 1: # Last value in history self.sigUndoable.emit(False) + self.sigStateChanged.emit() def redo(self): """Restore previously undone modification if any""" @@ -176,8 +187,9 @@ class BaseMask(qt.QObject): self.sigRedoable.emit(False) if len(self._history) == 2: # Something to undo self.sigUndoable.emit(True) + self.sigStateChanged.emit() - # Whole mask operations + # Whole mask operations def clear(self, level): """Set all values of the given mask level to 0. @@ -211,7 +223,7 @@ class BaseMask(qt.QObject): """ if shape is None: # assume dimensionality never changes - shape = (0, ) * len(self._mask.shape) # empty array + shape = (0,) * len(self._mask.shape) # empty array shapeChanged = (shape != self._mask.shape) self._mask = numpy.zeros(shape, dtype=numpy.uint8) if shapeChanged: @@ -415,6 +427,13 @@ class BaseMaskToolsWidget(qt.QWidget): """Notify mask changes""" self.sigMaskChanged.emit() + def getMaskedItem(self): + """Returns the item that is currently being masked + + :rtype: Union[~silx.gui.plot.items.Item,None] + """ + return self._mask.getDataItem() + def getSelectionMask(self, copy=True): """Get the current mask as a numpy array. @@ -935,11 +954,11 @@ class BaseMaskToolsWidget(qt.QWidget): colors = numpy.empty((self._maxLevelNumber + 1, 4), dtype=numpy.float32) # Set color - colors[:, :3] = self._defaultOverlayColor[:3] + colors[:,:3] = self._defaultOverlayColor[:3] # check if some colors has been directly set by the user mask = numpy.equal(self._defaultColors, False) - colors[mask, :3] = self._overlayColors[mask, :3] + colors[mask,:3] = self._overlayColors[mask,:3] # Set alpha colors[:, -1] = alpha / 2. |