Fix some regressions in keyboard shift selection behavior introduced by the last set of changes.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32053 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/interface/ListView.cpp

@@ -424,9 +424,9 @@ BListView::KeyDown(const char *bytes, int32 numBytes)
 			} else {
 				if (fAnchorIndex > 0) {
 					if (!extend || fAnchorIndex <= fFirstSelected)
-						Select(fAnchorIndex - 1, extend);
+						Select(--fAnchorIndex, extend);
 					else
-						Deselect(fAnchorIndex);
+						Deselect(fAnchorIndex--);
 				}
 			}
 
@@ -441,9 +441,9 @@ BListView::KeyDown(const char *bytes, int32 numBytes)
 			} else {
 				if (fAnchorIndex < CountItems() - 1) {
 					if (!extend || fAnchorIndex >= fLastSelected)
-						Select(fAnchorIndex + 1, extend);
+						Select(++fAnchorIndex, extend);
 					else
-						Deselect(fAnchorIndex);
+						Deselect(fAnchorIndex++);
 				}
 			}
 
@@ -456,6 +456,7 @@ BListView::KeyDown(const char *bytes, int32 numBytes)
 				Select(0, fAnchorIndex, true);
 			else
 				Select(0, false);
+			fAnchorIndex = 0;
 			ScrollToSelection();
 			break;
 		case B_END:
@@ -463,6 +464,7 @@ BListView::KeyDown(const char *bytes, int32 numBytes)
 				Select(fAnchorIndex, CountItems() - 1, true);
 			else
 				Select(CountItems() - 1, false);
+			fAnchorIndex = CountItems() - 1;
 			ScrollToSelection();
 			break;