Fixes #72: QwtScaleWidget AttributeError (maxMajor, maxMinor, stepSize)

Author: PierreRaybaut

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Version 0.10.3
 
+- [Issue #72](https://github.com/PierreRaybaut/PythonQwt/issues/72) - AttributeError: 'QwtScaleWidget' object has no attribute 'maxMajor' / 'maxMinor' / 'stepSize'
+
 - [Issue #76](https://github.com/PierreRaybaut/PythonQwt/issues/76) - [PySide] AttributeError: 'QwtPlotCanvas' object has no attribute 'Sunken'
 
 - [Issue #63](https://github.com/PierreRaybaut/PythonQwt/issues/71) - TypeError: 'PySide2.QtCore.QRect' object is not subscriptable

qwt/plot.py

@@ -585,7 +585,7 @@ def axisMaxMajor(self, axisId):
             :py:meth:`qwt.scale_engine.QwtScaleEngine.divideScale()`
         """
         if self.axisValid(axisId):
-            return self.axisWidget(axisId).maxMajor
+            return self.__axisData[axisId].maxMajor
         else:
             return 0
 
@@ -600,7 +600,7 @@ def axisMaxMinor(self, axisId):
             :py:meth:`qwt.scale_engine.QwtScaleEngine.divideScale()`
         """
         if self.axisValid(axisId):
-            return self.axisWidget(axisId).maxMinor
+            return self.__axisData[axisId].maxMinor
         else:
             return 0
 
@@ -641,7 +641,7 @@ def axisStepSize(self, axisId):
             :py:meth:`qwt.scale_engine.QwtScaleEngine.divideScale()`
         """
         if self.axisValid(axisId):
-            return self.axisWidget(axisId).stepSize
+            return self.__axisData[axisId].stepSize
         else:
             return 0