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/* This file is part of the KDE libraries
Copyright (C) 2002 Ellis Whitehead <ellis@kde.org>
Win32 port:
Copyright (C) 2004 Jaroslaw Staniek <js@iidea.pl>
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.
*/
#ifndef __KKEYNATIVE_H
#define __KKEYNATIVE_H
#include <kshortcut.h>
#ifdef Q_WS_X11
typedef union _XEvent XEvent;
#endif
class KKeyNativePrivate;
/**
* Representation of a key in the format native of the windowing system (eg. X11).
* @see KKey
*/
class TDECORE_EXPORT KKeyNative
{
public:
/**
* Creates a new null KKey.
* @see clear()
* @see isNull()
* @see null()
*/
KKeyNative();
#ifdef Q_WS_X11
/**
* Extracts a new native key from the given xevent.
* @param xevent the XEvent that contains the key
*/
KKeyNative( const XEvent* xevent );
#endif
/**
* Creates a new native key for the given KKey code.
* @param key the KKey that contains the generic key
*/
KKeyNative( const KKey& key );
/**
* Copy constructor.
*/
KKeyNative( const KKeyNative& );
/**
* @internal
*/
KKeyNative( uint code, uint mod, uint sym );
~KKeyNative();
/**
* Clears the key. The key is null after calling this function.
* @see isNull()
*/
void clear();
#ifdef Q_WS_X11
/**
* Initializes the native key by extracting the information
* from the given xevent.
* @param xevent the XEvent that contains the key
* @return true if successful, false otherwise
*/
bool init( const XEvent* xevent );
#endif
/**
* Creates a new native key for the given KKey code.
* @param key the KKey that contains the generic key
* @return true if successful, false otherwise
*/
bool init( const KKey& key );
/**
* Copies the given key into this key.
* @param key the key to copy
* @return true if successful, false otherwise
*/
bool init( const KKeyNative& key );
/**
* Copies the given key into this key.
* @param key the key to copy
* @return this key
*/
KKeyNative& operator =( const KKeyNative& key )
{ init( key ); return *this; }
/**
* Returns the qt key code.
* @return the qt key code or 0 if there is no key set.
* @see Qt::Key
*/
int keyCodeQt() const;
/**
* Returns the KKey representation of this key.
* @return the KKey representation
*/
KKey key() const;
/**
* Converts this key to its KKey representation.
* @return the KKey representation
* @see key()
*/
operator KKey() const { return key(); }
/**
* The native keycode of the key.
* @return the native keycode
*/
uint code() const;
/**
* The native modifier flags of the key.
* @return the native modifier flags
*/
uint mod() const;
/**
* The native symbol (KeySym) of the key.
* @return the native symbol (KeySym)
*/
uint sym() const;
/**
* Returns true if the key is null (after clear() or empty
* constructor).
* @return true if the key is null
* @see clear()
* @see null()
*/
bool isNull() const;
/**
* Compares this key with the given KKeyNative object. Returns a
* negative number if the given KKeyNative is larger, 0 if they
* are equal and a positive number this KKeyNative is larger. The
* returned value is the difference between the symbol, modifier
* or code, whatever is non-zero first.
*
* @param key the key to compare with this key
* @return a negative number if the given KKeyNative is larger, 0 if
* they are equal and a positive number this KKeyNative is larger
*/
int compare( const KKeyNative& key ) const;
/**
* Compares the symbol, modifiers and code of both keys.
* @see compare()
*/
bool operator == ( const KKeyNative& key ) const
{ return compare( key ) == 0; }
/**
* Compares the symbol, modifiers and code of both keys.
* @see compare()
*/
bool operator != ( const KKeyNative& key ) const
{ return compare( key ) != 0; }
/**
* Compares the symbol, modifiers and code of both keys.
* @see compare()
*/
bool operator < ( const KKeyNative& key ) const
{ return compare( key ) < 0; }
/**
* Returns a null key.
* @return the null key
* @see isNull()
* @see clear()
*/
static KKeyNative& null();
// General query functions. //
/**
* Checks whether the keyboard has a Win key.
* @return true if the keyboard has a Win key
*/
static bool keyboardHasWinKey();
#ifdef Q_WS_X11
/**
* Returns the equivalent X modifier mask of the given modifier flag.
* @param modFlag the mod flags to test
* @return the equivalent native flags of the window system
*/
static uint modX( KKey::ModFlag modFlag );
/**
* Returns bitwise OR'ed mask containing Shift, Ctrl, Alt, and
* Win (if available).
* @return the mask of Shift, Ctrl, Alt and Win.
*/
static uint accelModMaskX();
/**
* Returns the X11 NumLock modifier mask/flag.
* @return the X11 NumLock modifier mask/flag.
* @see accelModMaskX()
*/
static uint modXNumLock();
/**
* Returns the X11 Lock modifier mask/flag.
* @return the X11 Lock modifier mask/flag.
* @see accelModMaskX()
*/
static uint modXLock();
/**
* Returns the X11 ScrollLock modifier mask/flag.
* @return the X11 ScrollLock modifier mask/flag.
* @see accelModMaskX()
*/
static uint modXScrollLock();
/**
* Returns the X11 Mode_switch modifier mask/flag.
* @return the X11 Mode_switch modifier mask/flag.
* @see accelModMaskX()
* @since 3.5
*/
static uint modXModeSwitch();
#endif
private:
uint m_code, m_mod, m_sym;
KKeyNativePrivate* d;
};
#endif // !__KKEYNATIVE_H
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