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-rw-r--r--kdesktop/kdesktopapp.cpp95
1 files changed, 95 insertions, 0 deletions
diff --git a/kdesktop/kdesktopapp.cpp b/kdesktop/kdesktopapp.cpp
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+++ b/kdesktop/kdesktopapp.cpp
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+/* This file is part of the KDE project
+ Copyright (C) 2007 Dennis Kasprzyk <onestone@opencompositing.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <kdesktopapp.h>
+
+KDesktopApp::KDesktopApp():
+KUniqueApplication()
+{
+#ifdef COMPOSITE
+ initCmBackground();
+#endif
+}
+
+KDesktopApp::KDesktopApp(Display * dpy, Qt::HANDLE visual, Qt::HANDLE colormap):
+KUniqueApplication(dpy, visual, colormap)
+{
+#ifdef COMPOSITE
+ initCmBackground();
+#endif
+}
+
+#ifdef COMPOSITE
+void KDesktopApp::initCmBackground()
+{
+ Atom type;
+ int format;
+ unsigned long num, rest;
+ unsigned char *data;
+
+ m_bgSupported = false;
+ m_cmBackground =
+ XInternAtom (qt_xdisplay(), "_COMPIZ_WALLPAPER_SUPPORTED", false);
+
+ XSelectInput (qt_xdisplay(), qt_xrootwin(), PropertyChangeMask);
+
+ if (XGetWindowProperty (qt_xdisplay(), qt_xrootwin(), m_cmBackground,
+ 0, 1, FALSE, XA_CARDINAL, &type, &format, &num,
+ &rest, &data) == Success && num)
+ {
+ if (type == XA_CARDINAL)
+ m_bgSupported = (*data == 1);
+ XFree (data);
+ }
+}
+
+bool KDesktopApp::x11EventFilter (XEvent * xevent)
+{
+ if (xevent->type == PropertyNotify &&
+ xevent->xproperty.window == qt_xrootwin() &&
+ xevent->xproperty.atom == m_cmBackground)
+ {
+ Atom type;
+ int format;
+ unsigned long num, rest;
+ unsigned char *data;
+
+ Bool supported = false;
+
+ if (XGetWindowProperty (qt_xdisplay(), qt_xrootwin(), m_cmBackground,
+ 0, 1, FALSE, XA_CARDINAL, &type, &format, &num,
+ &rest, &data) == Success && num)
+ {
+ if (type == XA_CARDINAL)
+ supported = (*data == 1);
+ XFree (data);
+ }
+
+ if (m_bgSupported != supported)
+ {
+ m_bgSupported = supported;
+ emit cmBackgroundChanged(supported);
+ }
+ }
+ return KUniqueApplication::x11EventFilter (xevent);
+}
+
+#endif
+
+#include "kdesktopapp.moc"