sc/source/ui/docshell/autostyl.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 <time.h>
  21 #include <osl/diagnose.h>
  22
  23 #include <address.hxx>
  24 #include <autostyl.hxx>
  25 #include <docsh.hxx>
  26
  27 static sal_uLong TimeNow()          // seconds
  28 {
  29     return static_cast<sal_uLong>(time(nullptr));
  30 }
  31
  32 namespace {
  33
  34 class FindByRange
  35 {
  36     ScRange maRange;
  37 public:
  38     explicit FindByRange(const ScRange& r) : maRange(r) {}
  39     bool operator() (const ScAutoStyleData& rData) const { return rData.aRange == maRange; }
  40 };
  41
  42 class FindByTimeout
  43 {
  44     sal_uLong mnTimeout;
  45 public:
  46     explicit FindByTimeout(sal_uLong n) : mnTimeout(n) {}
  47     bool operator() (const ScAutoStyleData& rData) const { return rData.nTimeout >= mnTimeout; }
  48 };
  49
  50 struct FindNonZeroTimeout
  51 {
  52     bool operator() (const ScAutoStyleData& rData) const
  53     {
  54         return rData.nTimeout != 0;
  55     }
  56 };
  57
  58 }
  59
  60 ScAutoStyleList::ScAutoStyleList(ScDocShell* pShell)
  61     : pDocSh(pShell)
  62     , aTimer("ScAutoStyleList Timer")
  63     , aInitIdle("ScAutoStyleList InitIdle")
  64     , nTimerStart(0)
  65 {
  66     aTimer.SetInvokeHandler( LINK( this, ScAutoStyleList, TimerHdl ) );
  67     aInitIdle.SetInvokeHandler( LINK( this, ScAutoStyleList, InitHdl ) );
  68     aInitIdle.SetPriority( TaskPriority::HIGHEST );
  69 }
  70
  71 ScAutoStyleList::~ScAutoStyleList()
  72 {
  73 }
  74
  75 //  initial short delay (asynchronous call)
  76
  77 void ScAutoStyleList::AddInitial( const ScRange& rRange, const OUString& rStyle1,
  78                                     sal_uLong nTimeout, const OUString& rStyle2 )
  79 {
  80     aInitials.emplace_back( rRange, rStyle1, nTimeout, rStyle2 );
  81     aInitIdle.Start();
  82 }
  83
  84 IMPL_LINK_NOARG(ScAutoStyleList, InitHdl, Timer *, void)
  85 {
  86     std::vector<ScAutoStyleInitData> aLocalInitials(std::move(aInitials));
  87     for (const auto& rInitial : aLocalInitials)
  88     {
  89         //  apply first style immediately
  90         pDocSh->DoAutoStyle(rInitial.aRange, rInitial.aStyle1);
  91
  92         //  add second style to list
  93         if (rInitial.nTimeout)
  94             AddEntry(rInitial.nTimeout, rInitial.aRange, rInitial.aStyle2 );
  95     }
  96 }
  97
  98 void ScAutoStyleList::AddEntry( sal_uLong nTimeout, const ScRange& rRange, const OUString& rStyle )
  99 {
 100     aTimer.Stop();
 101     sal_uLong nNow = TimeNow();
 102
 103     // Remove the first item with the same range.
 104     std::vector<ScAutoStyleData>::iterator itr =
 105         ::std::find_if(aEntries.begin(), aEntries.end(), FindByRange(rRange));
 106
 107     if (itr != aEntries.end())
 108         aEntries.erase(itr);
 109
 110     //  adjust timeouts of all entries
 111
 112     if (!aEntries.empty() && nNow != nTimerStart)
 113     {
 114         OSL_ENSURE(nNow>nTimerStart, "Time is running backwards?");
 115         AdjustEntries((nNow-nTimerStart)*1000);
 116     }
 117
 118     //  find insert position
 119     std::vector<ScAutoStyleData>::iterator iter =
 120         ::std::find_if(aEntries.begin(), aEntries.end(), FindByTimeout(nTimeout));
 121
 122     aEntries.insert(iter, ScAutoStyleData(nTimeout,rRange,rStyle));
 123
 124     //  execute expired, restart timer
 125
 126     ExecuteEntries();
 127     StartTimer(nNow);
 128 }
 129
 130 void ScAutoStyleList::AdjustEntries( sal_uLong nDiff )  // milliseconds
 131 {
 132     for (auto& rEntry : aEntries)
 133     {
 134         if (rEntry.nTimeout <= nDiff)
 135             rEntry.nTimeout = 0;                 // expired
 136         else
 137             rEntry.nTimeout -= nDiff;                // continue counting
 138     }
 139 }
 140
 141 void ScAutoStyleList::ExecuteEntries()
 142 {
 143     // Execute and remove all items with timeout == 0 from the begin position
 144     // until the first item with non-zero timeout value.
 145     std::vector<ScAutoStyleData>::iterator itr = aEntries.begin(), itrEnd = aEntries.end();
 146     for (; itr != itrEnd; ++itr)
 147     {
 148         if (itr->nTimeout)
 149             break;
 150
 151         pDocSh->DoAutoStyle(itr->aRange, itr->aStyle);
 152     }
 153     // At this point itr should be on the first item with non-zero timeout, or
 154     // the end position in case all items have timeout == 0.
 155     aEntries.erase(aEntries.begin(), itr);
 156 }
 157
 158 void ScAutoStyleList::ExecuteAllNow()
 159 {
 160     aTimer.Stop();
 161
 162     for (const auto& rEntry : aEntries)
 163         pDocSh->DoAutoStyle(rEntry.aRange, rEntry.aStyle);
 164
 165     aEntries.clear();
 166 }
 167
 168 void ScAutoStyleList::StartTimer( sal_uLong nNow )      // seconds
 169 {
 170     // find first entry with Timeout != 0
 171     std::vector<ScAutoStyleData>::iterator iter =
 172         ::std::find_if(aEntries.begin(),aEntries.end(), FindNonZeroTimeout());
 173
 174     if (iter != aEntries.end())
 175     {
 176         aTimer.SetTimeout(iter->nTimeout);
 177         aTimer.Start();
 178     }
 179
 180     nTimerStart = nNow;
 181 }
 182
 183 IMPL_LINK_NOARG(ScAutoStyleList, TimerHdl, Timer *, void)
 184 {
 185     sal_uLong nNow = TimeNow();
 186     AdjustEntries(aTimer.GetTimeout());             // the set waiting time
 187     ExecuteEntries();
 188     StartTimer(nNow);
 189 }
 190
 191 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */