examples/AppServices/calcon/CalconExample.cpp

/*
Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of Nokia Corporation nor the names of its contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  This example demonstrates conversion of Chinese lunar calendar dates to Gregorian dates
              and vice versa.
*/


#include <e32std.h>
#include <e32base.h>
#include <e32cons.h>
#include <calendarconverter.h> 
#include <ecom/ecom.h> 


// local definitions 
static CConsoleBase* console;

// Pointer to the CChineseCalendarConverter
static CChineseCalendarConverter*       gCalendarConverter;

// strings for display
_LIT(KMsgPressAnyKey,"\nPress any key to continue\n\n");
_LIT(KConsoleStars,"\n*************************\n");

static void PrintChineseDate(TChineseDate aDate);
static void PrintGregorianDate(TDateTime aDate);

// Converts a Gregorian date to a Chinese date
static TChineseDate& GregorianDatesToLunarDatesL(TDateTime aStartDT)
        {
        _LIT(KConsoleMessage,"This function demonstrates conversion of Gregorian to Chinese dates\n");
        console->Printf(KConsoleMessage);
                
        _LIT(KConsoleMessage1,"\nBefore conversion, the date in Gregorian format is: ");
        console->Printf(KConsoleMessage1);
        PrintGregorianDate(aStartDT);
        
        TInt err1;
        static TChineseDate chineseDate;
        // Convert the earliest date in the convertible range
        TRAP(err1,gCalendarConverter->DateTimeToChineseL(aStartDT,chineseDate));
        if (err1)
                {
                _LIT(KConsoleMessage2,"Conversion error");
                console->Printf(KConsoleMessage2);      
                }
        else
                {
                _LIT(KConsoleMessage3,"\nAfter conversion, the date in Chinese format is:\n");
                console->Printf(KConsoleMessage3);
                PrintChineseDate(chineseDate);
        }
        console->Printf(KConsoleStars);
        // Wait for user to press a key before destroying console
        console->Printf(KMsgPressAnyKey);
        console->Getch();
        return chineseDate;
        }
        
// Converts a Chinese date to a Gregorian date
static void LunarDatesToGregorianDatesL(TChineseDate aChineseDate)
        {
        _LIT(KConsoleMessage,"This function demonstrates conversion of Chinese to Gregorian dates\n");
        console->Printf(KConsoleMessage);
                
        TDateTime dateTime;

        _LIT(KConsoleMessage1,"\nBefore conversion, the date in Chinese format is:\n");
        console->Printf(KConsoleMessage1);
        PrintChineseDate(aChineseDate);

        TInt err;
        // Convert the last date in the convertible range
        TRAP(err,gCalendarConverter->ChineseToDateTimeL(aChineseDate, dateTime));
        if (err)
                {
                _LIT(KConsoleMessage2,"Conversion error");
                console->Printf(KConsoleMessage2);      
                }
        else
                {
                _LIT(KConsoleMessage3,"\nAfter conversion, the date is: ");
                console->Printf(KConsoleMessage3);

                PrintGregorianDate(dateTime);
        console->Printf(KConsoleStars);

                }
        }
        
// Prints Chinese date
static void PrintChineseDate(TChineseDate aDate)        
        {
        TBuf16<32> buffer;
        _LIT(KFormatTxt,"Cycle: %d \n");
        buffer.Format(KFormatTxt,aDate.iCycle);
        console->Printf(buffer);

        _LIT(KFormatTxt2,"Year: %d \n");
        buffer.Format(KFormatTxt2,aDate.iYear);
        console->Printf(buffer);
  
        _LIT(KFormatTxt3,"Month: %d \n");
        buffer.Format(KFormatTxt3,aDate.iMonth);
        console->Printf(buffer);
  
        _LIT(KFormatTxt4,"LeapMonth: %d \n");
        buffer.Format(KFormatTxt4,aDate.iLeapMonth);
        console->Printf(buffer);
  
        _LIT(KFormatTxt5,"Day: %d \n");
        buffer.Format(KFormatTxt5,aDate.iDay);
        console->Printf(buffer);
        }
        
// Prints Gregorian date
static void PrintGregorianDate(TDateTime aDate)
        {
        TBuf16<32> buffer;
        _LIT(KFormatTxt,"%d%S  %S %d\n");
        TDateSuffix iDateSuffix = TDateSuffix(aDate.Day());
        TMonthName iMonthName = TMonthName(aDate.Month());
        buffer.Format(KFormatTxt,aDate.Day()+1,&iDateSuffix,&iMonthName,aDate.Year());
    console->Printf(buffer);
        }
        
static void EgCalconL()
        {
    gCalendarConverter = CChineseCalendarConverter::NewL();
        CleanupStack::PushL(gCalendarConverter);
        
        TDateTime startDT;
        TDateTime finishDT;
        
        gCalendarConverter->DateRange(startDT, finishDT);
        
        TChineseDate chineseDate = GregorianDatesToLunarDatesL(startDT);
        LunarDatesToGregorianDatesL(chineseDate);
        
        CleanupStack::PopAndDestroy(gCalendarConverter);
        REComSession::FinalClose();
        }
        
static void DoExampleL()
    {
 
        // Create the console to print the messages to. 
        _LIT(KConsoleMessageDisplay, "Calcon Example");
        console = Console::NewL(KConsoleMessageDisplay,TSize(KConsFullScreen,KConsFullScreen));
        CleanupStack::PushL(console);
        console->Printf(KConsoleMessageDisplay);
        console->Printf(KConsoleStars);

        TRAPD(err,EgCalconL());

        if (err)
                {
                _LIT(KFailed,"\n\nExample failed: leave code=%d");
                console->Printf(KFailed, err);
                }

        // wait for user to press a key before destroying console
        console->Printf(KMsgPressAnyKey);
        console->Getch();
    CleanupStack::PopAndDestroy(console);
    }

// Standard entry point function
 TInt E32Main()
        {
        __UHEAP_MARK;
        // Active scheduler required as this is a console app
        CActiveScheduler* scheduler=new CActiveScheduler;
        // If active scheduler has been created, install it.
        if (scheduler)
                {
                CActiveScheduler::Install(scheduler); 
                // Cleanup stack needed
                CTrapCleanup* cleanup=CTrapCleanup::New();
                if (cleanup)
                        {
                        
                    TRAP_IGNORE(DoExampleL());
                        delete cleanup;
                        }
                delete scheduler;
                }
        __UHEAP_MARKEND;
        return KErrNone;
    }
  

---