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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"
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