Typing

src/silx/gui/plot/items/_roi_base.py

@@ -603,15 +603,15 @@ def _updated(self, event=None, checkVisibility=True):
         if event == items.ItemChangedType.NAME and self.__text is None:
             self._updated(items.ItemChangedType.TEXT, checkVisibility)
 
-    def _updatedStyle(self, event, style):
+    def _updatedStyle(self, event, style: items.CurveStyle):
         """Called when the current displayed style of the ROI was changed.
 
         :param event: The event responsible of the change of the style
         :param items.CurveStyle style: The current style
         """
         pass
 
-    def getCurrentStyle(self):
+    def getCurrentStyle(self) -> items.CurveStyle:
         """Returns the current curve style.
 
         Curve style depends on curve highlighting

src/silx/gui/plot/items/roi.py

@@ -237,7 +237,7 @@ def _updated(self, event=None, checkVisibility=True):
             self._updateItemProperty(event, self, self.__shape)
         super(LineROI, self)._updated(event, checkVisibility)
 
-    def _updatedStyle(self, event, style):
+    def _updatedStyle(self, event, style: items.CurveStyle):
         super(LineROI, self)._updatedStyle(event, style)
         self.__shape.setColor(style.getColor())
         self.__shape.setLineStyle(style.getLineStyle())
@@ -251,7 +251,7 @@ def setFirstShapePoints(self, points):
     def _updateText(self, text):
         self._handleLabel.setText(text)
 
-    def setEndPoints(self, startPoint, endPoint):
+    def setEndPoints(self, startPoint: numpy.ndarray, endPoint: numpy.ndarray):
         """Set this line location using the ending points
 
         :param numpy.ndarray startPoint: Staring bounding point of the line
@@ -260,7 +260,7 @@ def setEndPoints(self, startPoint, endPoint):
         if not numpy.array_equal((startPoint, endPoint), self.getEndPoints()):
             self.__updateEndPoints(startPoint, endPoint)
 
-    def __updateEndPoints(self, startPoint, endPoint):
+    def __updateEndPoints(self, startPoint: numpy.ndarray, endPoint: numpy.ndarray):
         """Update marker and shape to match given end points
 
         :param numpy.ndarray startPoint: Staring bounding point of the line

src/silx/gui/plot/tools/RulerToolButton.py

@@ -33,6 +33,7 @@
 import logging
 import numpy
 import weakref
+import typing
 
 from silx.gui import icons
 
@@ -48,13 +49,22 @@
 class _RulerROI(LineROI):
     def __init__(self, parent=None):
         super().__init__(parent)
-        self._formatFunction = None
+        self._formatFunction: typing.Optional[
+            typing.Callable[
+                [numpy.ndarray, numpy.ndarray], str
+            ]
+        ] = None
 
-    def registerFormatFunction(self, fct):
-        """fct is expected to be a function taking (startPoint, endPoint) as parameter"""
+    def registerFormatFunction(
+        self,
+        fct: typing.Callable[
+            [numpy.ndarray, numpy.ndarray], str
+        ],
+    ):
+        """Register a function for the formatting of the label"""
         self._formatFunction = fct
 
-    def setEndPoints(self, startPoint, endPoint):
+    def setEndPoints(self, startPoint: numpy.ndarray, endPoint: numpy.ndarray):
         super().setEndPoints(startPoint=startPoint, endPoint=endPoint)
         if self._formatFunction is not None:
             ruler_text = self._formatFunction(
@@ -151,7 +161,7 @@ def _registerCurrentROI(self, currentRoi):
             currentRoi.registerFormatFunction(self.buildDistanceText)
             self.__lastRoiCreated = weakref.ref(currentRoi)
 
-    def buildDistanceText(self, startPoint, endPoint):
+    def buildDistanceText(self, startPoint: numpy.ndarray, endPoint: numpy.ndarray) -> str:
         """
         Define the text to be displayed by the ruler.