xmloff/source/core/ProgressBarHelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <xmloff/ProgressBarHelper.hxx>
  21 #include <xmloff/xmltoken.hxx>
  22
  23 #include <osl/diagnose.h>
  24
  25 using namespace ::com::sun::star;
  26
  27 static const sal_Int32 nDefaultProgressBarRange = 1000000;
  28 static const float fProgressStep = 0.5;
  29
  30 ProgressBarHelper::ProgressBarHelper(const css::uno::Reference < css::task::XStatusIndicator>& xTempStatusIndicator,
  31                                     const bool bTempStrict)
  32 : xStatusIndicator(xTempStatusIndicator)
  33 , nRange(nDefaultProgressBarRange)
  34 , nReference(100)
  35 , nValue(0)
  36 , fOldPercent(0.0)
  37 , bStrict(bTempStrict)
  38 , bRepeat(true)
  39 #ifdef DBG_UTIL
  40 , bFailure(false)
  41 #endif
  42 {
  43 }
  44
  45 ProgressBarHelper::~ProgressBarHelper()
  46 {
  47 }
  48
  49 void ProgressBarHelper::ChangeReference(sal_Int32 nNewReference)
  50 {
  51     if((nNewReference > 0) && (nNewReference != nReference))
  52     {
  53         if (nReference)
  54         {
  55             double fPercent((double)nNewReference / nReference);
  56             double fValue(nValue * fPercent);
  57             nValue = static_cast<sal_Int32>(fValue);
  58             nReference = nNewReference;
  59         }
  60         else
  61         {
  62             nReference = nNewReference;
  63             nValue = 0;
  64         }
  65     }
  66 }
  67
  68 void ProgressBarHelper::SetValue(sal_Int32 nTempValue)
  69 {
  70     if (xStatusIndicator.is() && (nReference > 0))
  71     {
  72         if ((nTempValue >= nValue) && (!bStrict || (nTempValue <= nReference)))
  73         {
  74             // #91317# no progress bar with values > 100%
  75             if (nTempValue > nReference)
  76             {
  77                 if (!bRepeat)
  78                     nValue = nReference;
  79                 else
  80                 {
  81                     xStatusIndicator->reset();
  82                     nValue = 0;
  83                 }
  84             }
  85             else
  86                 nValue = nTempValue;
  87
  88             double fValue(nValue);
  89             double fNewValue ((fValue * nRange) / nReference);
  90
  91             double fPercent((fNewValue * 100) / nRange);
  92             if (fPercent >= (fOldPercent + fProgressStep) || fPercent < fOldPercent)
  93             {
  94                 xStatusIndicator->setValue((sal_Int32)fNewValue);
  95                 fOldPercent = fPercent;
  96             }
  97         }
  98 #ifdef DBG_UTIL
  99         else if (!bFailure)
 100         {
 101             OSL_FAIL("tried to set a wrong value on the progressbar");
 102             bFailure = true;
 103         }
 104 #endif
 105     }
 106 }
 107
 108 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */