/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmloff.hxx"


//___________________________________________________________________
#include <xmloff/ProgressBarHelper.hxx>
#include <tools/debug.hxx>
#include <xmloff/xmltoken.hxx>

#include <stdlib.h>

using namespace ::com::sun::star;

const sal_Int32 nDefaultProgressBarRange = 1000000;
const float fProgressStep = 0.5;

ProgressBarHelper::ProgressBarHelper(const ::com::sun::star::uno::Reference < ::com::sun::star::task::XStatusIndicator>& xTempStatusIndicator,
									const sal_Bool bTempStrict)
: xStatusIndicator(xTempStatusIndicator)
, nRange(nDefaultProgressBarRange)
, nReference(100)
, nValue(0)
, fOldPercent(0.0)
, bStrict(bTempStrict)
, bRepeat(sal_True)
#ifdef DBG_UTIL
, bFailure(sal_False)
#endif
{
}

ProgressBarHelper::~ProgressBarHelper()
{
}

sal_Int32 ProgressBarHelper::ChangeReference(sal_Int32 nNewReference)
{
	if((nNewReference > 0) && (nNewReference != nReference))
	{
		if (nReference)
		{
			double fPercent(nNewReference / nReference);
			double fValue(nValue * fPercent);
#if OSL_DEBUG_LEVEL > 0
            // workaround for toolchain bug on solaris/x86 Sun C++ 5.5
            // just call some function here
            (void) abs(nValue);
#endif
			nValue = static_cast< sal_Int32 >(fValue);
			nReference = nNewReference;
		}
		else
		{
			nReference = nNewReference;
			nValue = 0;
		}
	}
	return nValue;
}

void ProgressBarHelper::SetValue(sal_Int32 nTempValue)
{
	if (xStatusIndicator.is() && (nReference > 0))
	{
		if ((nTempValue >= nValue) && (!bStrict || (bStrict && (nTempValue <= nReference))))
		{
			// #91317# no progress bar with values > 100%
            if (nTempValue > nReference)
            {
                if (!bRepeat)
                    nValue = nReference;
                else
                {
//                    xStatusIndicator->end();
//                    xStatusIndicator->start();
                    xStatusIndicator->reset();
                    nValue = 0;
                }
            }
            else
                nValue = nTempValue;

			double fValue(nValue);
			double fNewValue ((fValue * nRange) / nReference);

			xmloff::token::IncRescheduleCount();

			xStatusIndicator->setValue((sal_Int32)fNewValue);

			xmloff::token::DecRescheduleCount();

			// #95181# disabled, because we want to call setValue very often to enable a good reschedule
//			double fPercent ((fNewValue * 100) / nRange);
//			if (fPercent >= (fOldPercent + fProgressStep))
//			{
//				xStatusIndicator->setValue((sal_Int32)fNewValue);
//				fOldPercent = fPercent;
//			}
		}
#ifdef DBG_UTIL
		else if (!bFailure)
		{
			DBG_ERROR("tried to set a wrong value on the progressbar");
			bFailure = sal_True;
		}
#endif
	}
}