Hello Pavel, all,
thank you for the review, please find new webrev here:
http://cr.openjdk.java.net/~vkarnauk/7123767/webrev.03/
Please see my comments inline.
Regards,
- Vlad
On 8/31/2012 8:50 PM, Pavel Porvatov wrote:
Hi Vladislav,
I have several comments about the fix:
1. getDrawingRect: now localInsets should be requested only if
localRect.contains(toFind) is true
2.
+ // Something's really wrong here - use the screen
that our
+ // Component belongs to
+ if (workingBounds == null)
+ workingBounds =
insideComponent.getGraphicsConfiguration().getBounds();
a. You should always use {...} for if construction
Fixed.
b. It seems we should invoke adjustInsets there. To reduce the code I
think you can rename getDrawingRect into getGraphicsConfiguration and
return GraphicsConfiguration there. And only when
GraphicsConfiguration is found calculate adjusted bounds...
Agreed. Fixed.
3. getDrawingRect comment should have two ")" at the end
Fixed.
Abou the test:
1. You should use Toolkit.realSync after setVisible
Fixed.
2. I run the test on jdk1.8.0b51 and it passes. Looks strange...
The reason why it didn't fail on non-patched JDK8 is because line 184
183 Component component = e.getChild();
184 if (component.isShowing()) {
185 if
(!config.equals(getGCByPoint(component.getLocationOnScreen()))) {
returned "false" as AWT event queue was processed slower than test
thread, thus my check never actually happened. I've changed these logic
(please see new webrev), now this condition is processed correctly. Test
works on patched JDK and fails on non-patched JDK6, 7, and 8.
Regards, Pavel
Hi Pavel, all,
please find new webrev here:
http://cr.openjdk.java.net/~vkarnauk/7123767/webrev.02/
Please see my comments inline.
Regards,
- Vlad
On 8/17/2012 9:10 PM, Pavel Porvatov wrote:
Hi Vladislav,
I have several comments about the fix:
1. javax.swing.ToolTipManager#showTipWindow: I think toFind variable
should be initialized in if(preferredLocation != null) { ....} else
{...} block. It looks more logical and code will be more compact
(adjustedPreferredLocation can be removed at all, I think)
Agreed. I've re-worked this piece.
2. Could you please explain why you are using union of all
rectangles in the getDrawingRect method? In case two monitors are
aligned on a diagonal totalRect will contain areas that are not
covered by screen devices and popups can be placed incorrectly.
Agreed again. I've re-designed getDrawingRect() function and placed
additional condition into showTipWindow() function; now every
situation should be handled correctly.
Automated test was added, please see the webrev.
Regards,
- Vlad
Regards, Pavel
Hello,
please review the fix for 7123767: Wrong tooltip location in
Multi-Monitor configurations
jdk7 webrev: http://cr.openjdk.java.net/~vkarnauk/7123767/webrev.00/
test source: http://cr.openjdk.java.net/~vkarnauk/7123767/test/
bug description:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7123767
This is also a customer escalated issue in jdk6.
On multi-monitor configurations Component.getLocationOnScreen() may
return negative values. Additionally,
ToolTipManager.showTipWindow() method calculates tip window
location from Component' getLocationOnScreen() return data and
draws tip window using the same GraphicsConfiguration instance as
component's top-left corner, which again can be of negative value.
When component is stretched across multiple screen devices, this
may lead to a situation when it's tooltip is drawn on wrong monitor.
To fix this we should count all GraphicsConfiguration instances and
determine correct screen device to draw on. We should also take
into account that:
1) tip window preferred location could be set
2) preferred location could be greater than total virtual bounds of
all monitors. To make tip window visible in such case we move it to
the corresponding corner of total virtual bounds
3) exact order of monitors (left-to-right and top-to-bottom) is
unknown
I run jtreg against ToolTipManager tests and all tests passed (I
run it several times with different monitor configurations). I also
tested the fix with custom test program (please see the link
provided) with 4 possible monitor configurations (left-to-right,
right-to-left, top-to-bottom and bottom-to-top) and saw no issues.
I added no new automated test(s) because this at least would
require multiple monitors to run.
Regards,
- Vlad
