qcalc.h

量子编程源代码 量子编程源代码

/*****************************************************************************
* Product:  QCalc/C example, DOS, Turbo C++ 1.01, Large model
* Last Updated for Version: 3.4.00
* Date of the Last Update:  Sep 03, 2007
*
*                    Q u a n t u m     L e a P s
*                    ---------------------------
*                    innovating embedded systems
*
* Copyright (C) 2002-2007 Quantum Leaps, LLC. All rights reserved.
*
* This software may be distributed and modified under the terms of the GNU
* General Public License version 2 (GPL) as published by the Free Software
* Foundation and appearing in the file GPL.TXT included in the packaging of
* this file. Please note that GPL Section 2[b] requires that all works based
* on this software must also be made publicly available under the terms of
* the GPL ("Copyleft").
*
* Alternatively, this software may be distributed and modified under the
* terms of Quantum Leaps commercial licenses, which expressly supersede
* the GPL and are specifically designed for licensees interested in
* retaining the proprietary status of their code.
*
* Contact information:
* Quantum Leaps Web site:  http://www.quantum-leaps.com
* e-mail:                  [e-mail]
*****************************************************************************/
#ifndef qcalc_h
#define qcalc_h

enum QCalcSignals {
    C_SIG = Q_USER_SIG,
    CE_SIG,
    DIGIT_0_SIG,
    DIGIT_1_9_SIG,
    POINT_SIG,
    OPER_SIG,
    EQUALS_SIG,
    TERMINATE_SIG,
    IGNORE_SIG,
    MAX_SIG
};

typedef struct QCalcEvtTag QCalcEvt;
struct QCalcEvtTag {
    QEvent super_;                                  /* inhetits from QEvent */
    uint8_t keyId;                               /* ID of the key depressed */
};

#define DISP_WIDTH  14

typedef struct QCalcTag QCalc;
struct QCalcTag {
    QHsm super_;                                       /* derives from QHsm */
    double operand1_;
    double operand2_;
    char display_[DISP_WIDTH + 1];
    uint8_t len_;
    uint8_t opKey_;
};

/* public methods: */
void QCalc_ctor(QCalc *me);
char const *QCalc_getDisplay(QCalc const *me);

/* protected state machine methods: */
void QCalc_initial(QCalc *me, QEvent const *e);
QSTATE QCalc_on(QCalc *me, QEvent const *e);
QSTATE QCalc_error(QCalc *me, QEvent const *e);
QSTATE QCalc_ready(QCalc *me, QEvent const *e);
QSTATE QCalc_result(QCalc *me, QEvent const *e);
QSTATE QCalc_begin(QCalc *me, QEvent const *e);
QSTATE QCalc_negated1(QCalc *me, QEvent const *e);
QSTATE QCalc_operand1(QCalc *me, QEvent const *e);
QSTATE QCalc_zero1(QCalc *me, QEvent const *e);
QSTATE QCalc_int1(QCalc *me, QEvent const *e);
QSTATE QCalc_frac1(QCalc *me, QEvent const *e);
QSTATE QCalc_opEntered(QCalc *me, QEvent const *e);
QSTATE QCalc_negated2(QCalc *me, QEvent const *e);
QSTATE QCalc_operand2(QCalc *me, QEvent const *e);
QSTATE QCalc_zero2(QCalc *me, QEvent const *e);
QSTATE QCalc_int2(QCalc *me, QEvent const *e);
QSTATE QCalc_frac2(QCalc *me, QEvent const *e);

/* protected methods: */
void QCalc_clear_(QCalc *me);
void QCalc_insert_(QCalc *me, int keyId);
void QCalc_negate_(QCalc *me);
int QCalc_eval_(QCalc *me);

/* platform-dependent callback functions to update the state and exit */
void QCalc_updateState(QCalc *me, char const *s);
void QCalc_exit(QCalc *me);

#endif                                                           /* qcalc_h */