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/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This software 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 General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "KeyModifier.h"
#include "Debug.h"
#include "XcbUtil.h"
#if defined(Q_OS_WIN)
#include <windows.h>
#endif
#if HAVE_XCB
#include <xcb/xcb.h>
#include <xcb/xcb_keysyms.h>
#include <X11/Xutil.h>
#endif
//______________________________________
KeyModifier::KeyModifier( const Qt::Key& key ):
key_( key )
{}
//_______________________________________
KeyModifier::State KeyModifier::state() const
{
Debug::Throw( "KeyModifier::state.\n" );
#if defined(Q_OS_WIN)
switch( key_ )
{
case Qt::Key_CapsLock: return ( GetKeyState(VK_CAPITAL) ) ? State::On:State::Off;
case Qt::Key_NumLock: return ( GetKeyState(VK_NUMLOCK) ) ? State::On:State::Off;
default: return State::Unknown;
}
#endif
#if HAVE_XCB
if( !XcbUtil::isX11() ) return State::Unknown;
// map Qt Key to X11
int keySymbol(0);
switch( key_ )
{
case Qt::Key_CapsLock:
keySymbol = XK_Caps_Lock;
break;
case Qt::Key_NumLock:
keySymbol = XK_Num_Lock;
break;
default:
return State::Unknown;
}
// get matching key code
auto connection( XcbUtil::get().connection<xcb_connection_t>() );
auto symbols( xcb_key_symbols_alloc( connection ) );
XcbUtil::ScopedPointer<xcb_keycode_t> keyCodes( xcb_key_symbols_get_keycode( symbols, keySymbol ) );
// convert key codes to bit mask
int keyMask( 0 );
{
auto&& cookie( xcb_get_modifier_mapping( connection ) );
XcbUtil::ScopedPointer<xcb_get_modifier_mapping_reply_t> reply( xcb_get_modifier_mapping_reply( connection, cookie, nullptr ) );
if( !reply ) return State::Unknown;
// get modifiers
auto&& modifiers( xcb_get_modifier_mapping_keycodes( reply.get() ) );
const int count( xcb_get_modifier_mapping_keycodes_length( reply.get() ) );
for( int i = 0; i<count; ++i )
{
if( modifiers[i] == keyCodes.get()[0] )
{ keyMask = 1 << i; }
}
keyCodes.reset();
xcb_key_symbols_free(symbols);
}
// get key bits
{
auto&& cookie( xcb_query_pointer( connection, XcbUtil::get().appRootWindow() ) );
XcbUtil::ScopedPointer<xcb_query_pointer_reply_t> reply( xcb_query_pointer_reply( connection, cookie, nullptr ) );
if( reply ) return ( reply->mask & keyMask ) ? State::On : State::Off;
}
#endif
return State::Unknown;
}
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