currencyconvertor.c

mtk工具箱,计算器的详细设计,可以由此入手了解mtk的

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
*  LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
*  OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
*  MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. 
*
*  THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
*  LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
*  RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 * Currencyconvertor.c
 *
 * Project:
 * --------
 * MAUI
 *
 * Description:
 * ------------
 * This file implements Currency Convertor application.
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *============================================================================
 ****************************************************************************/
 /**
 * Copyright Notice
 * ?2002 - 2003, Pixtel Communications, Inc., 1489 43rd Ave. W.,
 * Vancouver, B.C. V6M 4K8 Canada. All Rights Reserved.
 *  (It is illegal to remove this copyright notice from this software or any
 *  portion of it)
 */

/**********************************************************************************
   Filename:      Currencyconvertor.c
   Author:        Vandana M
   Date Created:  June-29-2003
   Contains:      Currency Convertor
**********************************************************************************/
#ifndef _MMI_CURRENCYCONVRETOR_C
#define _MMI_CURRENCYCONVRETOR_C

/*  Include: MMI header file */
#include "MMI_features.h"

#include "EventsGprot.h" 
#include "wgui_inputs.h"
#include "wgui_categories.h"
#include "wgui_categories_inputs.h"
#include "HistoryGprot.h"
#if defined __MMI_CURRENCY_CONVERTER__
#include "PixtelDataTypes.h"
#include "WrapperGprot.h"
#include "CurrencyConvertor.h"
#include "UnitConvertor.h"
#include "Unicodexdcl.h"
#include "GlobalDefs.h"
#include "TimerEvents.h"
#include "DebugInitDef.h"
#include "SettingProfile.h"
#include "string.h"
#include "NVRAMType.h"
#include "NVRAMProt.h"
#include "NVRAMEnum.h"
#include "OrganizerDef.h"
#include "CustDataProts.h"
#include "CommonScreens.h"
#if defined(__MMI_TOUCH_SCREEN__)
#include "EditorPenGprot.h"
#endif 
/*  Include: PS header file */
/* ... Add More PS header */

/* 
 * Define
 */
#define  CCONV_MAX_RATE          5
#define  CCONV_MAX_INPUT            7
#define  CCONV_MAX_RESULT        12
#define  CCONV_SEL_BUF_LEN       10*ENCODING_LENGTH     /* length of inline selection string */
#define  CCONV_RESULT_BUF_LEN    (CCONV_MAX_RESULT+1)*ENCODING_LENGTH

/* 
 * Typedef 
 */
typedef struct
{
    DOUBLE Rate;
    S32 CurrSelRate;    /* current selecting rate */
    S8 *RateList[2];
    S8 LocalBuff[CCONV_RESULT_BUF_LEN];
    S8 ForeBuff[CCONV_RESULT_BUF_LEN];
    S8 RateBuff[CCONV_RESULT_BUF_LEN];
    S8 RateString[2][CCONV_SEL_BUF_LEN];
    U8 CurrHiliteItem;
    U8 ClearResultFlag;
    U8 IsFromHistory;
    /* U8   IsComputingResult; */
} cconv_context_struct;

/* 
 * Local Variable
 */

/* 
 * Local Function
 */
U8 mmi_cconv_del_scr_callback(void *p);

/* 
 * Global Variable
 */
cconv_context_struct *g_cconv_cntx = NULL;
extern wgui_inline_item wgui_inline_items[];

//WuTJ, 2007-10-16, 非笔点死机(M510,bug31), 加入宏__MMI_HANDWRITING_PAD__
#if defined(__MMI_TOUCH_SCREEN__) || defined(__MMI_HANDWRITING_PAD__)
extern void (*complete_inline_item_edit) (void);
#endif 

/* 
 * Global Function
 */
extern void set_leading_zero(U8 u8type);
extern DOUBLE gui_atof(UI_string_type s);
extern void gui_float_string(DOUBLE dob_val, S32 prec_val, S8 *out_buffer);
extern S32 CalcComputePrecision(DOUBLE result, S16 max_digits);

extern void HighlightCConvMenu(void);
extern void EntryCconvApp(void);
extern void ExitCConvApp(void);
extern void CconvPreEntryExchange(void);
extern void EntryCConvExchange(void);
extern void ExitCConvExchange(void);
extern void HighlightCconvInlineItemHandler(S32 index);
extern void HighlightCconvInlineSelHandler(S32 index);
extern void CconvCustomInlineFunction(void);
extern void CconvClearResult(void);

#define UCONV_RATE_INPUT


/*****************************************************************************
 * FUNCTION
 *  CconvInit
 * DESCRIPTION
 *  Initialize currency converter application.
 * PARAMETERS
 *  void
 * RETURNS
 *  void
 *****************************************************************************/
void CconvInit(void)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    SetHiliteHandler(EXTRA_CURRENCYCONVERTOR_MENU, HighlightCConvMenu);
}


/*****************************************************************************
 * FUNCTION
 *  CconvDeInit
 * DESCRIPTION
 *  Free allocated memory.
 * PARAMETERS
 *  void
 * RETURNS
 *  void
 *****************************************************************************/
void CconvDeInit(void)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    if (g_cconv_cntx)
    {
        OslMfree(g_cconv_cntx);
        g_cconv_cntx = NULL;
    }
}


/*****************************************************************************
 * FUNCTION
 *  mmi_cconv_del_scr_callback
 * DESCRIPTION
 *  Callback function of delete currencty converter screen
 * PARAMETERS
 *  p       [?]     
 * RETURNS
 *  void
 *****************************************************************************/
U8 mmi_cconv_del_scr_callback(void *p)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    if (GetActiveScreenId() == SCR_ID_CCONV_RATE_INPUT || GetActiveScreenId() == SCR_ID_CCONV_COMPUTE)
    {
        CloseCategory57Screen();
    }
    CconvDeInit();
    return MMI_FALSE;
}


/*****************************************************************************
 * FUNCTION
 *  CconvPreEntryApp
 * DESCRIPTION
 *  Application memory and entry application.