1 files changed, 174 insertions, 0 deletions
diff --git a/sdext/source/presenter/PresenterAnimator.cxx b/sdext/source/presenter/PresenterAnimator.cxx
new file mode 100644
index 000000000000..d16528f658e3
--- /dev/null
+++ b/sdext/source/presenter/PresenterAnimator.cxx
@@ -0,0 +1,174 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_sdext.hxx"
+
+#include "PresenterAnimator.hxx"
+
+#include "PresenterTimer.hxx"
+#include <osl/diagnose.h>
+#include <osl/time.h>
+#include <salhelper/timer.hxx>
+#include <boost/bind.hpp>
+#include <boost/function.hpp>
+
+namespace sdext { namespace presenter {
+
+
+
+//===== PresenterAnimator =====================================================
+
+PresenterAnimator::PresenterAnimator (void)
+    : maFutureAnimations(),
+      maActiveAnimations(),
+      mnCurrentTaskId(0),
+      mnNextTime(0)
+{
+}
+
+
+
+
+PresenterAnimator::~PresenterAnimator (void)
+{
+    PresenterTimer::CancelTask(mnCurrentTaskId);
+}
+
+
+
+
+
+void PresenterAnimator::AddAnimation (const SharedPresenterAnimation& rpAnimation)
+{
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    maFutureAnimations.insert(AnimationList::value_type(rpAnimation->GetStartTime(), rpAnimation));
+    ScheduleNextRun();
+}
+
+
+
+
+void PresenterAnimator::Process (void)
+{
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    mnNextTime = 0;
+
+    const sal_uInt64 nCurrentTime (GetCurrentTime());
+
+    ActivateAnimations(nCurrentTime);
+
+    while ( ! maActiveAnimations.empty())
+    {
+        sal_uInt64 nRequestedTime (maActiveAnimations.begin()->first);
+        SharedPresenterAnimation pAnimation (maActiveAnimations.begin()->second);
+
+        if (nRequestedTime > nCurrentTime)
+            break;
+
+        maActiveAnimations.erase(maActiveAnimations.begin());
+
+        const double nTotalDuration (double(pAnimation->GetEndTime() - pAnimation->GetStartTime()));
+        double nProgress (nTotalDuration > 0 ? (nCurrentTime - pAnimation->GetStartTime()) / nTotalDuration : 1);
+        if (nProgress <= 0)
+            nProgress = 0;
+        else if (nProgress >= 1)
+            nProgress = 1;
+
+        OSL_TRACE("running animation step at %f (requested was %f) %f\n",
+            nCurrentTime/1e6, nRequestedTime/1e6, nProgress);
+        pAnimation->Run(nProgress, nCurrentTime);
+
+        if (nCurrentTime < pAnimation->GetEndTime())
+            maActiveAnimations.insert(
+                AnimationList::value_type(
+                    nCurrentTime + pAnimation->GetStepDuration(),
+                    pAnimation));
+        else
+            pAnimation->RunEndCallbacks();
+    }
+
+    ScheduleNextRun();
+}
+
+
+
+
+void PresenterAnimator::ActivateAnimations (const sal_uInt64 nCurrentTime)
+{
+    while ( ! maFutureAnimations.empty()
+        && maFutureAnimations.begin()->first <= nCurrentTime)
+    {
+        SharedPresenterAnimation pAnimation (maFutureAnimations.begin()->second);
+        maActiveAnimations.insert(*maFutureAnimations.begin());
+        maFutureAnimations.erase(maFutureAnimations.begin());
+        pAnimation->RunStartCallbacks();
+    }
+}
+
+
+
+
+void PresenterAnimator::ScheduleNextRun (void)
+{
+    sal_uInt64 nStartTime (0);
+
+    if ( ! maActiveAnimations.empty())
+    {
+        nStartTime  = maActiveAnimations.begin()->first;
+        if ( ! maFutureAnimations.empty())
+            if (maFutureAnimations.begin()->first < nStartTime)
+                nStartTime = maFutureAnimations.begin()->first;
+    }
+    else if ( ! maFutureAnimations.empty())
+        nStartTime = maFutureAnimations.begin()->first;
+
+    if (nStartTime > 0)
+        ScheduleNextRun(nStartTime);
+}
+
+
+
+
+void PresenterAnimator::ScheduleNextRun (const sal_uInt64 nStartTime)
+{
+    if (mnNextTime==0 || nStartTime<mnNextTime)
+    {
+        mnNextTime = nStartTime;
+        ::salhelper::TTimeValue aTimeValue (GetSeconds(mnNextTime), GetNanoSeconds(mnNextTime));
+        PresenterTimer::ScheduleSingleTaskAbsolute (
+            ::boost::bind(&PresenterAnimator::Process, this),
+            aTimeValue);
+    }
+}
+
+} } // end of namespace ::sdext::presenter
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */