Hi Ambarish,
the first point is not valid. Please, ignore it.
--Semyon
On 3/1/2016 11:14 AM, Semyon Sadetsky wrote:
Hi Ambarish,
- The over scroll remains after the proposed fix.
- The bug is a regression of 7092551 and should be labeled
correspondingly.
- An automatic test may and should be provided with the fix.
- The same issue existing in the TextArea should be fixed as well.
--Semyon
On 2/11/2016 12:23 PM, Ambarish Rapte wrote:
Hi,
Please review the fix for JDK9,
Bug: https://bugs.openjdk.java.net/browse/JDK-8149636
Webrev:
http://cr.openjdk.java.net/~arapte/8149636/webrev.00/
Issue:
While scrolling with selection, when mouse is dragged
outside the bounds of TextField,
a.TextField flickering is observed
b.TextField over scrolls on right. Text gets hidden on left side even
when no scroll is needed.
Cause:
a.Flicker –
For simulating scroll, scroll bar information is used.
To get correct scroll info, scroll bar should be visible.
Showing and hiding of scroll bar causes the flickering.
b.Over Scroll –
The scrolling logic scrolled the textField in units of half the
si.nPage. i.e. (si.inPage / 2) maximum till si.nMax,
Which causes the over scroll.
Fix:
ES_AUTOHSCROLL set for the TextField enables the
automatic horizontal scrolling, so we need not add code for scrolling.
Only selection should be updated as the mouse moves.
Hence removed the code to related to SendMessage(
WM_HSCROLL,…) i.e. scrolling
Verification:
Manually Verified that textField editing / selection
/ copy / paste works fine.
No Jtreg, JCK tests related to TextField fail due to
this change.
Updated an existing test *ScrollSelectionTest.java
*to test the scenarios mentioned in the bug.
Thanks,
Ambarish
