sc/inc/progress.hxx

   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 #ifndef INCLUDED_SC_INC_PROGRESS_HXX
  21 #define INCLUDED_SC_INC_PROGRESS_HXX
  22
  23 #include <rtl/ustring.hxx>
  24 #include <sfx2/progress.hxx>
  25 #include "scdllapi.h"
  26
  27 class ScDocument;
  28
  29 /*
  30  * #i102566
  31  * Drawing a progress bar update is not cheap, so if we draw it on every
  32  * percentage change of 200 calculations we get one progress draw per 2
  33  * calculations which is slower than doing the calculations themselves. So as a
  34  * rough guide only do an update per MIN_NO_CODES_PER_PROGRESS_UPDATE
  35  * calculations
  36  */
  37 #define MIN_NO_CODES_PER_PROGRESS_UPDATE 100
  38
  39 class SC_DLLPUBLIC ScProgress
  40 {
  41 private:
  42     static  SfxProgress*    pGlobalProgress;
  43     static  sal_uLong        nGlobalRange;
  44     static  sal_uLong       nGlobalPercent;
  45     static  ScProgress*     pInterpretProgress;
  46     static  ScProgress*     pOldInterpretProgress;
  47     static  sal_uLong       nInterpretProgress;
  48     static  bool            bAllowInterpretProgress;
  49     static  ScDocument*     pInterpretDoc;
  50     static  bool            bIdleWasEnabled;
  51             bool            bEnabled;
  52
  53             std::unique_ptr<SfxProgress> pProgress;
  54
  55                             ScProgress( const ScProgress& ) = delete;
  56             ScProgress&     operator=( const ScProgress& ) = delete;
  57
  58     static  void            CalcGlobalPercent( sal_uLong nVal )
  59                                 {
  60                                     nGlobalPercent = nGlobalRange ?
  61                                         nVal * 100 / nGlobalRange : 0;
  62                                 }
  63
  64 public:
  65     static  void            CreateInterpretProgress( ScDocument* pDoc,
  66                                                     bool bWait = true );
  67     static  ScProgress*     GetInterpretProgress() { return pInterpretProgress; }
  68     static  void            DeleteInterpretProgress();
  69
  70                             ScProgress( SfxObjectShell* pObjSh,
  71                                          const OUString& rText,
  72                                          sal_uLong nRange,
  73                                          bool bWait );
  74                             ~ScProgress();
  75
  76 #ifdef SC_PROGRESS_CXX
  77                             /// for DummyInterpret only, never use otherwise!!!
  78                             ScProgress();
  79 #endif
  80
  81             void            SetStateText( sal_uLong nVal, const OUString &rVal )
  82                                 {
  83                                     if ( pProgress )
  84                                     {
  85                                         CalcGlobalPercent( nVal );
  86                                         pProgress->SetStateText( nVal, rVal );
  87                                     }
  88                                 }
  89             void            SetState( sal_uLong nVal, sal_uLong nNewRange = 0 )
  90                                 {
  91                                     if ( pProgress )
  92                                     {
  93                                         if ( nNewRange )
  94                                             nGlobalRange = nNewRange;
  95                                         CalcGlobalPercent( nVal );
  96                                         pProgress->SetState( nVal, nNewRange );
  97                                     }
  98                                 }
  99             void            SetStateCountDown( sal_uLong nVal )
 100                                 {
 101                                     if ( pProgress )
 102                                     {
 103                                         CalcGlobalPercent( nGlobalRange - nVal );
 104                                         pProgress->SetState( nGlobalRange - nVal );
 105                                     }
 106                                 }
 107             void            SetStateOnPercent( sal_uLong nVal )
 108                                 {   /// only if percentage increased
 109                                     if ( nGlobalRange && (nVal * 100 /
 110                                             nGlobalRange) > nGlobalPercent )
 111                                         SetState( nVal );
 112                                 }
 113             void            SetStateCountDownOnPercent( sal_uLong nVal )
 114                                 {   /// only if percentage increased
 115                                     if ( nGlobalRange &&
 116                                             ((nGlobalRange - nVal) * 100 /
 117                                             nGlobalRange) > nGlobalPercent )
 118                                         SetStateCountDown( nVal );
 119                                 }
 120             sal_uLong           GetState()
 121                                 {
 122                                     if ( pProgress )
 123                                         return pProgress->GetState();
 124                                     return 0;
 125                                 }
 126             bool                Enabled() const { return bEnabled; }
 127             void                Disable() { bEnabled = false; }
 128             void                Enable() { bEnabled = true; }
 129 };
 130
 131 #endif
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */