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Jonathan Liu 952ea029f4 QWizard/Win: Fix incorrect cached state after all wizards destroyed 
If a QWizard is shown when Aero is enabled, the current visual style is
cached in a static member of QVistaHelper. The cached state is updated
by QVistaHelper when it receives WM_THEMECHANGED or
WM_DWMCOMPOSITIONCHANGED events from Windows.

If all QWizard instances are destroyed, there are no instances of
QVistaHelper to receive these notifications and update the cache. If
Aero is now disabled, the cached current visual style in QVistaHelper
isn't updated. If a wizard is now created and shown, a large black
rectangle is shown in the titlebar.

A static instance count is added so that when no wizards are running,
the cached state is not used.

Task-number: QTBUG-27004
Change-Id: Iefe4c8552388280219c9726418ed7476b8ebb15a
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
2012-09-03 11:05:49 +02:00
bin de-duplicate code 2012-08-28 20:47:11 +02:00
config.tests mips: Autodetect MIPS DSP rev1 and rev2 instructionset 2012-09-01 15:28:24 +02:00
dist QStyle: make standardIcon() & layoutSpacing() virtual 2012-08-31 18:56:35 +02:00
doc Moved gui example documentation to the proper location. 2012-09-01 11:21:46 +02:00
examples Properly reflect format changes in calendarwidget example. 2012-09-03 02:40:54 +02:00
lib Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
mkspecs Add a task number to ctest_testcase insignification 2012-09-01 17:30:31 +02:00
qmake beautify string operations 2012-08-28 20:48:13 +02:00
src QWizard/Win: Fix incorrect cached state after all wizards destroyed 2012-09-03 11:05:49 +02:00
tests Fix moc generating invalid code for slots with reference types as argument. 2012-09-02 23:41:42 +02:00
tools Fix bug in configure where Qt did not compile with QT_ICONV=no 2012-08-23 02:55:17 +02:00
util Make plugintest util work on Windows. 2012-08-30 13:51:22 +02:00
.gitattributes Added .tag file with Git revision. 2011-05-03 16:23:49 +02:00
.gitignore Updated .gitignore 2012-08-18 13:59:11 +02:00
.tag Added .tag file with Git revision. 2011-05-03 16:23:49 +02:00
configure mips: Autodetect MIPS DSP rev1 and rev2 instructionset 2012-09-01 15:28:24 +02:00
configure.bat Remove Q_BYTE_ORDER and -*-endian arguments from configures 2012-03-02 14:48:00 +01:00
header.BSD Remove "All rights reserved" line from license headers. 2012-01-30 03:54:59 +01:00
header.FDL Remove "All rights reserved" line from license headers. 2012-01-30 03:54:59 +01:00
header.LGPL Remove "All rights reserved" line from license headers. 2012-01-30 03:54:59 +01:00
header.LGPL-ONLY Remove "All rights reserved" line from license headers. 2012-01-30 03:54:59 +01:00
INSTALL Remove Symbian specific code from qtbase. 2012-01-31 07:08:31 +01:00
LGPL_EXCEPTION.txt Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.FDL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.GPL Add the LICENSE.GPL file to the module referenced from license headers 2012-05-20 22:41:08 +02:00
LICENSE.LGPL Update contact information in license headers. 2012-01-23 04:04:33 +01:00
LICENSE.PREVIEW.COMMERCIAL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
qtbase.pro Install right version of tools when x-compiling. 2012-07-17 12:52:48 +02:00
sync.profile Revert "Move QWindowSystemInterface out of qpa." 2012-08-03 00:38:09 +02:00