173 lines
4.5 KiB
C++
173 lines
4.5 KiB
C++
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/******************************************************************************
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*
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* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
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*
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* This is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* software; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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*******************************************************************************/
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/*!
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\file X11Util.h
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\brief some X11 specific utilities
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\author Hugo Pereira
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\version $Revision: 1.4 $
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\date $Date: 2009/07/03 00:36:20 $
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*/
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#include "x11util.h"
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using namespace std;
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namespace Nitrogen
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{
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//________________________________________________________________________
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X11Util& X11Util::get( void )
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{
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static X11Util singleton;
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return singleton;
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}
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//________________________________________________________________________
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X11Util::X11Util( void )
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{
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_initializeAtomNames();
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}
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//________________________________________________________________________
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bool X11Util::isSupported( const Atoms& atom )
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{
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#ifdef Q_WS_X11
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SupportedAtomMap::const_iterator iter( _supportedAtoms().find( atom ) );
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if( iter != _supportedAtoms().end() ) return iter->second;
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Display* display( QX11Info::display() );
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Atom net_supported( findAtom( _NET_SUPPORTED ) );
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Atom searched( findAtom( atom ) );
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Atom actual;
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int format;
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unsigned char *data;
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unsigned long offset = 0;
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while( 1 )
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{
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unsigned long n, left;
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XGetWindowProperty( display, QX11Info::appRootWindow(),
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net_supported, offset, 1L,
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false, XA_ATOM, &actual,
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&format, &n, &left,
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(unsigned char **) &data);
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if( data == None ) break;
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// try cast data to atom
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Atom found( *(Atom*)data );
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if( found == searched )
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{
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supported_atoms_[atom] = true;
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return true;
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}
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if( !left ) break;
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else offset ++;
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}
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supported_atoms_[atom] = false;
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#endif
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return false;
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}
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//________________________________________________________________________
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bool X11Util::moveResizeWidget(
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WId id,
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int screen,
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QPoint position,
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X11Util::Direction direction,
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Qt::MouseButton button )
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{
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#ifdef Q_WS_X11
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// check
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if( !isSupported( _NET_WM_MOVERESIZE ) ) return false;
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Display* display( QX11Info::display() );
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Atom net_wm_moveresize( findAtom( _NET_WM_MOVERESIZE ) );
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XEvent event;
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event.xclient.type = ClientMessage;
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event.xclient.message_type = net_wm_moveresize;
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event.xclient.display = display;
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event.xclient.window = id;
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event.xclient.format = 32;
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event.xclient.data.l[0] = position.x();
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event.xclient.data.l[1] = position.y();
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event.xclient.data.l[2] = direction;
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event.xclient.data.l[3] = button;
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event.xclient.data.l[4] = 0;
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XUngrabPointer( display, QX11Info::appTime() );
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XSendEvent(display,
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QX11Info::appRootWindow( screen ),
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false,
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SubstructureRedirectMask | SubstructureNotifyMask, &event);
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return true;
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#else
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return false;
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#endif
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}
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//________________________________________________________________________
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void X11Util::_initializeAtomNames( void )
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{
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atom_names_[_NET_SUPPORTED] = "_NET_SUPPORTED";
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atom_names_[_NET_WM_STATE] = "_NET_WM_STATE";
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atom_names_[_NET_WM_MOVERESIZE] = "_NET_WM_MOVERESIZE";
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return;
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}
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#ifdef Q_WS_X11
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//________________________________________________________________________
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Atom X11Util::findAtom( const Atoms& atom )
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{
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// find atom in map
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AtomMap::iterator iter( _atoms().find( atom ) );
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if( iter != _atoms().end() ) return iter->second;
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// create atom if not found
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Display* display( QX11Info::display() );
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Atom out( XInternAtom(display, qPrintable( atom_names_[atom] ), false ) );
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atoms_[atom] = out;
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return out;
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}
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}
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#endif
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