Normalize start Text pointer to support Text Cursor Indicator (#10333)

harshit7962 · web-flow · commit 93e9654de5f0 · 2025-02-10T21:27:03.000+05:30
* Normalize start Text pointer at boundingrectangles

* Fix Invariance in TextAdaptor
diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Controls/TextAdaptor.cs b/src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Controls/TextAdaptor.cs
@@ -112,6 +112,9 @@ internal Rect[] GetBoundingRectangles(ITextPointer start, ITextPointer end, bool
                 return Array.Empty<Rect>();
             }
 
+            start = start.CreatePointer();
+            end = end.CreatePointer();
+
             TextRangeAdaptor.MoveToInsertionPosition(start, LogicalDirection.Forward);
             TextRangeAdaptor.MoveToInsertionPosition(end, LogicalDirection.Backward);
 

Original file line number	Diff line number	Diff line change
`@@ -112,6 +112,9 @@ internal Rect[] GetBoundingRectangles(ITextPointer start, ITextPointer end, bool`
`112`	`112`	`return Array.Empty<Rect>();`
`113`	`113`	`}`
`114`	`114`
	`115`	`+ start = start.CreatePointer();`
	`116`	`+ end = end.CreatePointer();`
	`117`	`+`
`115`	`118`	`TextRangeAdaptor.MoveToInsertionPosition(start, LogicalDirection.Forward);`
`116`	`119`	`TextRangeAdaptor.MoveToInsertionPosition(end, LogicalDirection.Backward);`
`117`	`120`