Bug 46458
| Summary: | [Qt] Transparency in QGraphicsWebView is broken on Maemo6 with the OpenGL paint engine | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Jarmo Backlund <jarmo.backlund> |
| Component: | New Bugs | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Blocker | CC: | ademar, hausmann, kenneth, menard |
| Priority: | P1 | Keywords: | Qt, QtTriaged |
| Version: | 528+ (Nightly build) | ||
| Hardware: | Other | ||
| OS: | Linux | ||
Jarmo Backlund
The problem is that when we disable QGraphicsItem::ItemCoordinateCache in
ovirunner we will get a black layer on top of the map.
Maemo6, see more QT-3986.
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |
Tor Arne Vestbø
Please provide a reduced testcase
Simon Hausmann
Re-opening, QT-3986 contains a test-case that reproduces the issue. From the investigation of Alexis and me it is not unlikely to be a WebKit bug or a bug in Qt that is triggered by WebKit. For the moment we assume it's a WebKit bug and it's tracked here. Maemo bz 190777 has additional information.
I'm also adding this to the 2.1 release blocker, but this bug is a regression in 2.1 that does not happen with 2.0.
Jarmo Backlund
--- Comment #51 from Kinnunen Kimmo (Nokia) <kimmo.t.kinnunen@nokia.com> 2010-09-30 13:45:16 EEST --- If you run the app with mtf '-graphicsystem raster -software' flag, you can see it works as expected on device. On host + mtf, raster is broken anyway..
Passing -software to a mtf app disables the usage of glwidget for graphicsview.
-graphicsview raster -software -> ok
-software -> not ok
-graphicsview raster -> not ok
Somehow on GL the paint gets black background. Painting with different webkit bg color + alpha does not work, the black rect glows through the translucent bg.
QPalette palette = webView->page()->palette(); palette.setBrush(QPalette::Base, QColor(255,0,0,125));
webView->setPalette(palette);
Simon Hausmann
*** This bug has been marked as a duplicate of bug 45509 ***
Ademar Reis
marked as duplicated and therefore should not block the release