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EditRateForm.h

Go to the documentation of this file.

/** $Revision: 1.3 $
    Last updated: $Date: 2002/09/20 12:21:31 $

    Copyright (C) 2002 Vlad Mereuta <dizzy@users.sourceforge.net>

    This program 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
    any later version.

    This program 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, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef __EDIT_RATE_FORM__
#define __EDIT_RATE_FORM__

#include <PalmOS.h>

#include "Form.h"

/** Form used to edit the content of a split */
class EditRateForm : public Form
{   
public:
    ///structure in which data is returned
    typedef struct {
        ///amount in pence of source currency
        Int32 src_amount;
        ///original sign of the source amount
        bool is_src_negative;
        ///amount in pence of destination currency
        Int32 dest_amount;
        ///original sign of the destination amount
        bool is_dest_negative;
        ///exchange rate of the transaction
        double exchange_rate;
        ///if true the other values of the structure should be read and the dirty bit should be set to false
        bool dirty;
    } Results;
    
    ///holds current working data and is accessible from outside the class for reading other data
    Results results;
    
    ///constructor; initializes form
    EditRateForm() FORM_SECTION1;
    /**  initializes the form data to start a new session
         @param src UID of source currency record
         @param dest UID of destination currency record
         @note you also need to set the fields of the results structure directly, before poping up this form */
    void initForm (UInt32 src, UInt32 dest) FORM_SECTION1;

private:
    ///text for exchange rate display
    char _rate_buffer[30];
    ///text for code label of source currency
    char* _src_currency_label;
    ///text for code label of destination currency
    char* _dest_currency_label;
    ///UID of source currency record
    UInt32 _src_currency;
    ///UID of destination currency record
    UInt32 _dest_currency;

    ///checks validity of user data
    Boolean checkData() FORM_SECTION1;
    ///saves the data introduced
    void saveData() FORM_SECTION1;
    ///sets up form, fills in fields (if edit mode)
    Boolean handleOpenEvent() FORM_SECTION1;
    ///handles all control actions
    Boolean handleCtlSelectEvent (UInt16 control_id) FORM_SECTION1;
};

#endif

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