Remove nasty static_cast<QWidget*>(QObject*) which was creating the crashes.

CCMAIL: 61140-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=239860

kcmkwin/kwindecoration/kwindecoration.cpp

@@ -291,7 +291,7 @@ void KWinDecorationModule::resetPlugin( KConfig* conf, const QString& currentDec
 		if (alloc_ptr != NULL)
 		{
 			allocatePlugin = (QObject* (*)(KConfig* conf, QWidget* parent))alloc_ptr;
-			pluginObject = static_cast<QWidget*>(allocatePlugin( conf, pluginConfigWidget ));
+			pluginObject = (QObject*)(allocatePlugin( conf, pluginConfigWidget ));
 
 			// connect required signals and slots together...
 			connect( pluginObject, SIGNAL(changed()), this, SLOT(slotSelectionChanged()) );

kcmkwin/kwindecoration/kwindecoration.h

@@ -91,7 +91,7 @@ class KWinDecorationModule : public KCModule, virtual public KWinDecorationIface
 		ButtonSource* buttonSource;
 
 		// Page 3
-		QWidget* pluginObject;
+		QObject* pluginObject;
 		QLabel* noPluginSettings;
 		QString  currentLibraryName;
 		QString  oldLibraryName;