the QGraphicsTextItem should be focused in order to view the cursor

src/domain/UBGraphicsTextItemDelegate.cpp

@@ -392,6 +392,7 @@ void UBGraphicsTextItemDelegate::alignButtonProcess()
 
         delegated()->setTextCursor(cur);
         cur.setBlockFormat(fmt);
+        delegated()->setFocus();
     }
 
     qDebug() << "sender process" << sndr;

src/domain/UBGraphicsTextItemDelegate.h

@@ -138,7 +138,6 @@ class UBGraphicsTextItemDelegate : public UBGraphicsItemDelegate
         DelegateButton* mColorButton;
         DelegateButton* mDecreaseSizeButton;
         DelegateButton* mIncreaseSizeButton;
-
         DelegateButton* mAlignButton;
 
         int mLastFontPixelSize;