1 files changed, 191 insertions, 0 deletions
diff --git a/sc/source/ui/docshell/autostyl.cxx b/sc/source/ui/docshell/autostyl.cxx
new file mode 100644
index 000000000..5b6eaa30c
--- /dev/null
+++ b/sc/source/ui/docshell/autostyl.cxx
@@ -0,0 +1,191 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#include <time.h>
+#include <osl/diagnose.h>
+
+#include <address.hxx>
+#include <autostyl.hxx>
+#include <docsh.hxx>
+
+static sal_uLong TimeNow()          // seconds
+{
+    return static_cast<sal_uLong>(time(nullptr));
+}
+
+namespace {
+
+class FindByRange
+{
+    ScRange maRange;
+public:
+    explicit FindByRange(const ScRange& r) : maRange(r) {}
+    bool operator() (const ScAutoStyleData& rData) const { return rData.aRange == maRange; }
+};
+
+class FindByTimeout
+{
+    sal_uLong mnTimeout;
+public:
+    explicit FindByTimeout(sal_uLong n) : mnTimeout(n) {}
+    bool operator() (const ScAutoStyleData& rData) const { return rData.nTimeout >= mnTimeout; }
+};
+
+struct FindNonZeroTimeout
+{
+    bool operator() (const ScAutoStyleData& rData) const
+    {
+        return rData.nTimeout != 0;
+    }
+};
+
+}
+
+ScAutoStyleList::ScAutoStyleList(ScDocShell* pShell)
+    : pDocSh(pShell)
+    , aTimer("ScAutoStyleList Timer")
+    , aInitIdle("ScAutoStyleList InitIdle")
+    , nTimerStart(0)
+{
+    aTimer.SetInvokeHandler( LINK( this, ScAutoStyleList, TimerHdl ) );
+    aInitIdle.SetInvokeHandler( LINK( this, ScAutoStyleList, InitHdl ) );
+    aInitIdle.SetPriority( TaskPriority::HIGHEST );
+}
+
+ScAutoStyleList::~ScAutoStyleList()
+{
+}
+
+//  initial short delay (asynchronous call)
+
+void ScAutoStyleList::AddInitial( const ScRange& rRange, const OUString& rStyle1,
+                                    sal_uLong nTimeout, const OUString& rStyle2 )
+{
+    aInitials.emplace_back( rRange, rStyle1, nTimeout, rStyle2 );
+    aInitIdle.Start();
+}
+
+IMPL_LINK_NOARG(ScAutoStyleList, InitHdl, Timer *, void)
+{
+    std::vector<ScAutoStyleInitData> aLocalInitials(std::move(aInitials));
+    for (const auto& rInitial : aLocalInitials)
+    {
+        //  apply first style immediately
+        pDocSh->DoAutoStyle(rInitial.aRange, rInitial.aStyle1);
+
+        //  add second style to list
+        if (rInitial.nTimeout)
+            AddEntry(rInitial.nTimeout, rInitial.aRange, rInitial.aStyle2 );
+    }
+}
+
+void ScAutoStyleList::AddEntry( sal_uLong nTimeout, const ScRange& rRange, const OUString& rStyle )
+{
+    aTimer.Stop();
+    sal_uLong nNow = TimeNow();
+
+    // Remove the first item with the same range.
+    std::vector<ScAutoStyleData>::iterator itr =
+        ::std::find_if(aEntries.begin(), aEntries.end(), FindByRange(rRange));
+
+    if (itr != aEntries.end())
+        aEntries.erase(itr);
+
+    //  adjust timeouts of all entries
+
+    if (!aEntries.empty() && nNow != nTimerStart)
+    {
+        OSL_ENSURE(nNow>nTimerStart, "Time is running backwards?");
+        AdjustEntries((nNow-nTimerStart)*1000);
+    }
+
+    //  find insert position
+    std::vector<ScAutoStyleData>::iterator iter =
+        ::std::find_if(aEntries.begin(), aEntries.end(), FindByTimeout(nTimeout));
+
+    aEntries.insert(iter, ScAutoStyleData(nTimeout,rRange,rStyle));
+
+    //  execute expired, restart timer
+
+    ExecuteEntries();
+    StartTimer(nNow);
+}
+
+void ScAutoStyleList::AdjustEntries( sal_uLong nDiff )  // milliseconds
+{
+    for (auto& rEntry : aEntries)
+    {
+        if (rEntry.nTimeout <= nDiff)
+            rEntry.nTimeout = 0;                 // expired
+        else
+            rEntry.nTimeout -= nDiff;                // continue counting
+    }
+}
+
+void ScAutoStyleList::ExecuteEntries()
+{
+    // Execute and remove all items with timeout == 0 from the begin position
+    // until the first item with non-zero timeout value.
+    std::vector<ScAutoStyleData>::iterator itr = aEntries.begin(), itrEnd = aEntries.end();
+    for (; itr != itrEnd; ++itr)
+    {
+        if (itr->nTimeout)
+            break;
+
+        pDocSh->DoAutoStyle(itr->aRange, itr->aStyle);
+    }
+    // At this point itr should be on the first item with non-zero timeout, or
+    // the end position in case all items have timeout == 0.
+    aEntries.erase(aEntries.begin(), itr);
+}
+
+void ScAutoStyleList::ExecuteAllNow()
+{
+    aTimer.Stop();
+
+    for (const auto& rEntry : aEntries)
+        pDocSh->DoAutoStyle(rEntry.aRange, rEntry.aStyle);
+
+    aEntries.clear();
+}
+
+void ScAutoStyleList::StartTimer( sal_uLong nNow )      // seconds
+{
+    // find first entry with Timeout != 0
+    std::vector<ScAutoStyleData>::iterator iter =
+        ::std::find_if(aEntries.begin(),aEntries.end(), FindNonZeroTimeout());
+
+    if (iter != aEntries.end())
+    {
+        aTimer.SetTimeout(iter->nTimeout);
+        aTimer.Start();
+    }
+
+    nTimerStart = nNow;
+}
+
+IMPL_LINK_NOARG(ScAutoStyleList, TimerHdl, Timer *, void)
+{
+    sal_uLong nNow = TimeNow();
+    AdjustEntries(aTimer.GetTimeout());             // the set waiting time
+    ExecuteEntries();
+    StartTimer(nNow);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */