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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit4aed2c8219774f5d797760606b8489a92ddc5163 (patch)
tree3f8c130f7d269626bf6a9447407ef6c35954426a /ksplashml/themeengine/themeengine.cpp
downloadtdebase-4aed2c8219774f5d797760606b8489a92ddc5163.tar.gz
tdebase-4aed2c8219774f5d797760606b8489a92ddc5163.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/ksplashml/themeengine/themeengine.cpp b/ksplashml/themeengine/themeengine.cpp
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+/***************************************************************************
+ * Copyright Brian Ledbetter 2001-2003 <brian@shadowcom.net> *
+ * Copyright Ravikiran Rajagopal 2003 <ravi@kde.org> *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License (version 2) as *
+ * published by the Free Software Foundation. (The original KSplash/ML *
+ * codebase (upto version 0.95.3) is BSD-licensed.) *
+ * *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <kapplication.h>
+#include <kcmdlineargs.h>
+#include <kconfig.h>
+#include <kdebug.h>
+#include <kglobal.h>
+#include <kwin.h>
+
+#include <qevent.h>
+#include <qfile.h>
+#include <qwidget.h>
+
+#include <X11/Xlib.h>
+
+#ifdef HAVE_XCURSOR
+# include <X11/Xlib.h>
+# include <X11/Xcursor/Xcursor.h>
+#endif
+
+#include "objkstheme.h"
+#include "themeengine.h"
+#include "themeengine.moc"
+
+struct ThemeEngine::ThemeEnginePrivate
+{
+ QValueList< Window > mSplashWindows;
+};
+
+ThemeEngine::ThemeEngine( QWidget *, const char *, const QStringList& args )
+ : QVBox( 0, "wndSplash", WStyle_Customize|WX11BypassWM ), d(0)
+{
+ d = new ThemeEnginePrivate;
+ kapp->installX11EventFilter( this );
+ kapp->installEventFilter( this );
+ (void)kapp->desktop();
+ XWindowAttributes rootAttr;
+ XGetWindowAttributes(qt_xdisplay(), RootWindow(qt_xdisplay(),
+ qt_xscreen()), &rootAttr);
+ XSelectInput( qt_xdisplay(), qt_xrootwin(),
+ SubstructureNotifyMask | rootAttr.your_event_mask );
+ if (args.isEmpty())
+ mTheme = new ObjKsTheme( "Default" );
+ else
+ mTheme = new ObjKsTheme( args.first() );
+ mTheme->loadCmdLineArgs( KCmdLineArgs::parsedArgs() );
+}
+
+ThemeEngine::~ThemeEngine()
+{
+ delete d;
+}
+
+/*
+ This is perhaps a bit crude, but I'm not aware of any better way
+ of fixing #85030 and keeping backwards compatibility if there
+ are any 3rd party splashscreens. Check all toplevel windows,
+ force them to be WX11BypassWM (so that ksplash can handle their stacking),
+ and keep them on top, even above all windows handled by KWin.
+*/
+bool ThemeEngine::eventFilter( QObject* o, QEvent* e )
+{
+ if( e->type() == QEvent::Show && o->isWidgetType())
+ addSplashWindow( static_cast< QWidget* >( o ));
+ return false;
+}
+
+namespace
+{
+class HackWidget : public QWidget { friend class ::ThemeEngine; };
+}
+
+void ThemeEngine::addSplashWindow( QWidget* w )
+{
+ if( !w->isTopLevel())
+ return;
+ if( d->mSplashWindows.contains( w->winId()))
+ return;
+ if( !w->testWFlags( WX11BypassWM ))
+ { // All toplevel widgets should be probably required to be WX11BypassWM
+ // for KDE4 instead of this ugly hack.
+ static_cast< HackWidget* >( w )->setWFlags( WX11BypassWM );
+ XSetWindowAttributes attrs;
+ attrs.override_redirect = True;
+ XChangeWindowAttributes( qt_xdisplay(), w->winId(), CWOverrideRedirect, &attrs );
+ }
+ d->mSplashWindows.prepend( w->winId());
+ connect( w, SIGNAL( destroyed( QObject* )), SLOT( splashWindowDestroyed( QObject* )));
+ w->raise();
+}
+
+void ThemeEngine::splashWindowDestroyed( QObject* obj )
+{
+ d->mSplashWindows.remove( static_cast< QWidget* >( obj )->winId());
+}
+
+bool ThemeEngine::x11Event( XEvent* e )
+{
+ if( e->type != ConfigureNotify && e->type != MapNotify )
+ return false;
+ if( e->type == ConfigureNotify && e->xconfigure.event != qt_xrootwin())
+ return false;
+ if( e->type == MapNotify && e->xmap.event != qt_xrootwin())
+ return false;
+ if( d->mSplashWindows.count() == 0 )
+ return false;
+ // this restacking is written in a way so that
+ // if the stacking positions actually don't change,
+ // all restacking operations will be no-op,
+ // and no ConfigureNotify will be generated,
+ // thus avoiding possible infinite loops
+ XRaiseWindow( qt_xdisplay(), d->mSplashWindows.first()); // raise topmost
+ // and stack others below it
+ Window* stack = new Window[ d->mSplashWindows.count() ];
+ int count = 0;
+ for( QValueList< Window >::ConstIterator it = d->mSplashWindows.begin();
+ it != d->mSplashWindows.end();
+ ++it )
+ stack[ count++ ] = *it;
+ XRestackWindows( x11Display(), stack, count );
+ delete[] stack;
+ return false;
+}