Add missing set_style method to XRangeSelection class

Author: PierreRaybaut

CHANGELOG.md

@@ -28,6 +28,9 @@ In this release, test coverage is 79%.
     * `plotpy.widgets.selectdialog.SelectDialog`
     * `plotpy.widgets.selectdialog.select_with_shape_tool`
 
+* Added missing `set_style` method to `XRangeSelection` class: this method is used
+  to set the style of the range selection item from configuration options
+
 🛠️ Bug fixes:
 
 * Fix cyclic import in `plotpy.tools` module:

plotpy/items/shape/range.py

@@ -59,6 +59,16 @@ def __init__(
             self.shapeparam.update_item(self)  # creates all the above QObjects
         self.setIcon(get_icon("xrange.png"))
 
+    def set_style(self, section: str, option: str) -> None:
+        """Set style for this item
+
+        Args:
+            section: Section
+            option: Option
+        """
+        self.shapeparam.read_config(CONF, section, option)
+        self.shapeparam.update_item(self)
+
     def __reduce__(self) -> tuple[type, tuple, tuple]:
         """Return state information for pickling"""
         self.shapeparam.update_param(self)