michael@0: /*
michael@0: *****************************************************************************************
michael@0: * Copyright (C) 2010-2011, International Business Machines
michael@0: * Corporation and others. All Rights Reserved.
michael@0: *****************************************************************************************
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_FORMATTING
michael@0: 
michael@0: #include "unicode/udateintervalformat.h"
michael@0: #include "unicode/dtitvfmt.h"
michael@0: #include "unicode/dtintrv.h"
michael@0: #include "unicode/localpointer.h"
michael@0: #include "unicode/timezone.h"
michael@0: #include "unicode/locid.h"
michael@0: #include "unicode/unistr.h"
michael@0: 
michael@0: U_NAMESPACE_USE
michael@0: 
michael@0: 
michael@0: U_CAPI UDateIntervalFormat* U_EXPORT2
michael@0: udtitvfmt_open(const char*  locale,
michael@0:                const UChar* skeleton,
michael@0:                int32_t      skeletonLength,
michael@0:                const UChar* tzID,
michael@0:                int32_t      tzIDLength,
michael@0:                UErrorCode*  status)
michael@0: {
michael@0:     if (U_FAILURE(*status)) {
michael@0:         return NULL;
michael@0:     }
michael@0:     if ((skeleton == NULL ? skeletonLength != 0 : skeletonLength < -1) ||
michael@0:         (tzID == NULL ? tzIDLength != 0 : tzIDLength < -1)
michael@0:     ) {
michael@0:         *status = U_ILLEGAL_ARGUMENT_ERROR;
michael@0:         return NULL;
michael@0:     }
michael@0:     UnicodeString skel((UBool)(skeletonLength == -1), skeleton, skeletonLength);
michael@0:     LocalPointer<DateIntervalFormat> formatter(
michael@0:             DateIntervalFormat::createInstance(skel, Locale(locale), *status));
michael@0:     if (U_FAILURE(*status)) {
michael@0:         return NULL;
michael@0:     }
michael@0:     if(tzID != 0) {
michael@0:         TimeZone *zone = TimeZone::createTimeZone(UnicodeString((UBool)(tzIDLength == -1), tzID, tzIDLength));
michael@0:         if(zone == NULL) {
michael@0:             *status = U_MEMORY_ALLOCATION_ERROR;
michael@0:             return NULL;
michael@0:         }
michael@0:         formatter->adoptTimeZone(zone);
michael@0:     }
michael@0:     return (UDateIntervalFormat*)formatter.orphan();
michael@0: }
michael@0: 
michael@0: 
michael@0: U_CAPI void U_EXPORT2
michael@0: udtitvfmt_close(UDateIntervalFormat *formatter)
michael@0: {
michael@0:     delete (DateIntervalFormat*)formatter;
michael@0: }
michael@0: 
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2
michael@0: udtitvfmt_format(const UDateIntervalFormat* formatter,
michael@0:                  UDate           fromDate,
michael@0:                  UDate           toDate,
michael@0:                  UChar*          result,
michael@0:                  int32_t         resultCapacity,
michael@0:                  UFieldPosition* position,
michael@0:                  UErrorCode*     status)
michael@0: {
michael@0:     if (U_FAILURE(*status)) {
michael@0:         return -1;
michael@0:     }
michael@0:     if (result == NULL ? resultCapacity != 0 : resultCapacity < 0) {
michael@0:         *status = U_ILLEGAL_ARGUMENT_ERROR;
michael@0:         return 0;
michael@0:     }
michael@0:     UnicodeString res;
michael@0:     if (result != NULL) {
michael@0:         // NULL destination for pure preflighting: empty dummy string
michael@0:         // otherwise, alias the destination buffer (copied from udat_format)
michael@0:         res.setTo(result, 0, resultCapacity);
michael@0:     }
michael@0:     FieldPosition fp;
michael@0:     if (position != 0) {
michael@0:         fp.setField(position->field);
michael@0:     }
michael@0: 
michael@0:     DateInterval interval = DateInterval(fromDate,toDate);
michael@0:     ((const DateIntervalFormat*)formatter)->format( &interval, res, fp, *status );
michael@0:     if (U_FAILURE(*status)) {
michael@0:         return -1;
michael@0:     }
michael@0:     if (position != 0) {
michael@0:         position->beginIndex = fp.getBeginIndex();
michael@0:         position->endIndex = fp.getEndIndex();
michael@0:     }
michael@0: 
michael@0:     return res.extract(result, resultCapacity, *status);
michael@0: }
michael@0: 
michael@0: 
michael@0: #endif /* #if !UCONFIG_NO_FORMATTING */