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/********************************************************************************
* *
* A c c e l e r a t o r T a b l e C l a s s *
* *
*********************************************************************************
* Copyright (C) 1998,2005 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
*********************************************************************************
* $Id: FXAccelTable.h 2335 2006-01-28 02:33:03Z lyle $ *
********************************************************************************/
#ifndef FXACCELTABLE_H
#define FXACCELTABLE_H
#ifndef FXOBJECT_H
#include "FXObject.h"
#endif
namespace FX {
/**
* The accelerator table sends a message to a specific
* target object when the indicated key and modifier combination
* is pressed.
*/
class FXAPI FXAccelTable : public FXObject {
FXDECLARE(FXAccelTable)
protected:
struct FXAccelKey {
FXObject *target; // Target object of message
FXSelector messagedn; // Message being sent
FXSelector messageup; // Message being sent
FXHotKey code; // Keysym and modifier mask to match
};
private:
FXAccelKey *key; // Accelerator table
FXuint max; // Largest table index
FXuint num; // Number of entries
private:
void resize(FXuint m);
private:
FXAccelTable(const FXAccelTable&);
FXAccelTable &operator=(const FXAccelTable&);
public:
long onKeyPress(FXObject*,FXSelector,void*);
long onKeyRelease(FXObject*,FXSelector,void*);
public:
/// Construct empty accelerator table
FXAccelTable();
/// Add an accelerator into the table
void addAccel(FXHotKey hotkey,FXObject* target=NULL,FXSelector seldn=0,FXSelector selup=0);
/// Remove an accelerator from the table
void removeAccel(FXHotKey hotkey);
/// Return true if accelerator specified
bool hasAccel(FXHotKey hotkey) const;
/// Return target object of the given accelerator
FXObject* targetOfAccel(FXHotKey hotkey) const;
/**
* Parse accelerator from string, yielding modifier and
* key code. For example, parseAccel("Ctl+Shift+X")
* yields MKUINT(KEY_X,CONTROLMASK|SHIFTMASK).
*/
friend FXAPI FXHotKey parseAccel(const FXString& string);
/**
* Unparse hot key comprising modifier and key code back
* into a string suitable for parsing with fxparseHotKey.
*/
friend FXAPI FXString unparseAccel(FXHotKey key);
/**
* Parse hot key from string, yielding modifier and
* key code. For example, parseHotKey(""Salt && &Pepper!"")
* yields MKUINT(KEY_p,ALTMASK).
*/
friend FXAPI FXHotKey parseHotKey(const FXString& string);
/**
* Obtain hot key offset in string, or -1 if not found.
* For example, findHotKey("Salt && &Pepper!") yields 7.
* Note that this is the byte-offset, not the character
* index!
*/
friend FXAPI FXint findHotKey(const FXString& string);
/**
* Strip hot key combination from the string.
* For example, stripHotKey("Salt && &Pepper") should
* yield "Salt & Pepper".
*/
friend FXAPI FXString stripHotKey(const FXString& string);
/// Save table to a stream
virtual void save(FXStream& store) const;
/// Load table from a stream
virtual void load(FXStream& store);
/// Destructor
virtual ~FXAccelTable();
};
extern FXAPI FXHotKey parseAccel(const FXString& string);
extern FXAPI FXString unparseAccel(FXHotKey key);
extern FXAPI FXHotKey parseHotKey(const FXString& string);
extern FXAPI FXint findHotKey(const FXString& string);
extern FXAPI FXString stripHotKey(const FXString& string);
}
#endif