1 files changed, 395 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/controller/SlsAnimator.cxx b/sd/source/ui/slidesorter/controller/SlsAnimator.cxx
new file mode 100755
index 000000000000..28756b3766d9
--- /dev/null
+++ b/sd/source/ui/slidesorter/controller/SlsAnimator.cxx
@@ -0,0 +1,395 @@
+/*************************************************************************
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+#include "precompiled_sd.hxx"
+#include "controller/SlsAnimator.hxx"
+#include "view/SlideSorterView.hxx"
+#include "View.hxx"
+#include <boost/bind.hpp>
+
+namespace sd { namespace slidesorter { namespace controller {
+
+namespace {
+    static const sal_Int32 gnResolution = 25;
+}
+/** Handle one animation function by using a timer for frequent calls to
+    the animations operator().
+*/
+class Animator::Animation
+{
+public:
+    Animation (
+        const Animator::AnimationFunctor& rAnimation,
+        const double nStartOffset,
+        const double nDuration,
+        const double nGlobalTime,
+        const Animator::AnimationId nAnimationId,
+        const Animator::FinishFunctor& rFinishFunctor);
+    ~Animation (void);
+    /** Run next animation step.  If animation has reached its end it is
+        expired.
+    */
+    bool Run (const double nGlobalTime);
+
+    /** Typically called when an animation has finished, but also from
+        Animator::Disposed().  The finish functor is called and the
+        animation is marked as expired to prevent another run.
+    */
+    void Expire (void);
+    bool IsExpired (void);
+
+    Animator::AnimationFunctor maAnimation;
+    Animator::FinishFunctor maFinishFunctor;
+    const Animator::AnimationId mnAnimationId;
+    const double mnDuration;
+    const double mnEnd;
+    const double mnGlobalTimeAtStart;
+    bool mbIsExpired;
+};
+
+
+
+
+Animator::Animator (SlideSorter& rSlideSorter)
+    : mrSlideSorter(rSlideSorter),
+      maTimer(),
+      mbIsDisposed(false),
+      maAnimations(),
+      maElapsedTime(),
+      mpDrawLock(),
+      mnNextAnimationId(0)
+{
+    maTimer.SetTimeout(gnResolution);
+    maTimer.SetTimeoutHdl(LINK(this,Animator,TimeoutHandler));
+}
+
+
+
+
+Animator::~Animator (void)
+{
+    if ( ! mbIsDisposed)
+    {
+        OSL_ASSERT(mbIsDisposed);
+        Dispose();
+    }
+}
+
+
+
+
+void Animator::Dispose (void)
+{
+    mbIsDisposed = true;
+
+    AnimationList aCopy (maAnimations);
+    AnimationList::const_iterator iAnimation;
+    for (iAnimation=aCopy.begin(); iAnimation!=aCopy.end(); ++iAnimation)
+        (*iAnimation)->Expire();
+
+    maTimer.Stop();
+    if (mpDrawLock)
+    {
+        mpDrawLock->Dispose();
+        mpDrawLock.reset();
+    }
+}
+
+
+
+
+Animator::AnimationId Animator::AddAnimation (
+    const AnimationFunctor& rAnimation,
+    const sal_Int32 nStartOffset,
+    const sal_Int32 nDuration,
+    const FinishFunctor& rFinishFunctor)
+{
+    // When the animator is already disposed then ignore this call
+    // silently (well, we show an assertion, but do not throw an exception.)
+    OSL_ASSERT( ! mbIsDisposed);
+    if (mbIsDisposed)
+        return -1;
+
+    boost::shared_ptr<Animation> pAnimation (
+        new Animation(
+            rAnimation,
+            nStartOffset / 1000.0,
+            nDuration / 1000.0,
+            maElapsedTime.getElapsedTime(),
+            ++mnNextAnimationId,
+            rFinishFunctor));
+    maAnimations.push_back(pAnimation);
+
+    RequestNextFrame();
+
+    return pAnimation->mnAnimationId;
+}
+
+
+
+
+Animator::AnimationId Animator::AddInfiniteAnimation (
+    const AnimationFunctor& rAnimation,
+    const double nDelta)
+{
+    (void)nDelta;
+
+    // When the animator is already disposed then ignore this call
+    // silently (well, we show an assertion, but do not throw an exception.)
+    OSL_ASSERT( ! mbIsDisposed);
+    if (mbIsDisposed)
+        return -1;
+
+    boost::shared_ptr<Animation> pAnimation (
+        new Animation(
+            rAnimation,
+            0,
+            -1,
+            maElapsedTime.getElapsedTime(),
+            mnNextAnimationId++,
+            FinishFunctor()));
+    maAnimations.push_back(pAnimation);
+
+    RequestNextFrame();
+
+    return pAnimation->mnAnimationId;
+}
+
+
+
+
+void Animator::RemoveAnimation (const Animator::AnimationId nId)
+{
+    OSL_ASSERT( ! mbIsDisposed);
+
+    const AnimationList::iterator iAnimation (::std::find_if(
+        maAnimations.begin(),
+        maAnimations.end(),
+        ::boost::bind(
+            ::std::equal_to<Animator::AnimationId>(),
+            nId,
+            ::boost::bind(&Animation::mnAnimationId, _1))));
+    if (iAnimation != maAnimations.end())
+    {
+        OSL_ASSERT((*iAnimation)->mnAnimationId == nId);
+        (*iAnimation)->Expire();
+        maAnimations.erase(iAnimation);
+    }
+
+    if (maAnimations.empty())
+    {
+        // Reset the animation id when we can.
+        mnNextAnimationId = 0;
+
+        // No more animations => we do not have to suppress painting
+        // anymore.
+        mpDrawLock.reset();
+    }
+}
+
+
+
+
+void Animator::RemoveAllAnimations (void)
+{
+    ::std::for_each(
+        maAnimations.begin(),
+        maAnimations.end(),
+        ::boost::bind(
+            &Animation::Expire,
+            _1));
+    maAnimations.clear();
+    mnNextAnimationId = 0;
+
+    // No more animations => we do not have to suppress painting
+    // anymore.
+    mpDrawLock.reset();
+}
+
+
+
+
+bool Animator::ProcessAnimations (const double nTime)
+{
+    bool bExpired (false);
+
+    OSL_ASSERT( ! mbIsDisposed);
+    if (mbIsDisposed)
+        return bExpired;
+
+
+    AnimationList aCopy (maAnimations);
+    AnimationList::const_iterator iAnimation;
+    for (iAnimation=aCopy.begin(); iAnimation!=aCopy.end(); ++iAnimation)
+    {
+        bExpired |= (*iAnimation)->Run(nTime);
+    }
+
+    return bExpired;
+}
+
+
+
+
+void Animator::CleanUpAnimationList (void)
+{
+    OSL_ASSERT( ! mbIsDisposed);
+    if (mbIsDisposed)
+        return;
+
+    AnimationList aActiveAnimations;
+
+    AnimationList::const_iterator iAnimation;
+    for (iAnimation=maAnimations.begin(); iAnimation!=maAnimations.end(); ++iAnimation)
+    {
+        if ( ! (*iAnimation)->IsExpired())
+            aActiveAnimations.push_back(*iAnimation);
+    }
+
+    maAnimations.swap(aActiveAnimations);
+}
+
+
+
+
+void Animator::RequestNextFrame (const double nFrameStart)
+{
+    (void)nFrameStart;
+    if ( ! maTimer.IsActive())
+    {
+        // Prevent redraws except for the ones in TimeoutHandler.  While the
+        // Animator is active it will schedule repaints regularly.  Repaints
+        // in between would only lead to visual artifacts.
+        mpDrawLock.reset(new view::SlideSorterView::DrawLock(mrSlideSorter));
+        maTimer.Start();
+    }
+}
+
+
+
+
+IMPL_LINK(Animator, TimeoutHandler, Timer*, EMPTYARG)
+{
+    if (mbIsDisposed)
+        return 0;
+
+    if (ProcessAnimations(maElapsedTime.getElapsedTime()))
+        CleanUpAnimationList();
+
+    // Unlock the draw lock.  This should lead to a repaint.
+    mpDrawLock.reset();
+
+    if (maAnimations.size() > 0)
+        RequestNextFrame();
+
+    return 0;
+}
+
+
+
+
+//===== Animator::Animation ===================================================
+
+Animator::Animation::Animation (
+    const Animator::AnimationFunctor& rAnimation,
+    const double nStartOffset,
+    const double nDuration,
+    const double nGlobalTime,
+    const Animator::AnimationId nId,
+    const Animator::FinishFunctor& rFinishFunctor)
+    : maAnimation(rAnimation),
+      maFinishFunctor(rFinishFunctor),
+      mnAnimationId(nId),
+      mnDuration(nDuration),
+      mnEnd(nGlobalTime + nDuration + nStartOffset),
+      mnGlobalTimeAtStart(nGlobalTime + nStartOffset),
+      mbIsExpired(false)
+{
+    Run(nGlobalTime);
+}
+
+
+
+
+Animator::Animation::~Animation (void)
+{
+}
+
+
+
+
+bool Animator::Animation::Run (const double nGlobalTime)
+{
+    if ( ! mbIsExpired)
+    {
+        if (mnDuration > 0)
+        {
+            if (nGlobalTime >= mnEnd)
+            {
+                maAnimation(1.0);
+                Expire();
+            }
+            else if (nGlobalTime >= mnGlobalTimeAtStart)
+            {
+                maAnimation((nGlobalTime - mnGlobalTimeAtStart) / mnDuration);
+            }
+        }
+        else if (mnDuration < 0)
+        {
+            // Animations without end have to be expired by their owner.
+            maAnimation(nGlobalTime);
+        }
+    }
+
+    return mbIsExpired;
+}
+
+
+
+
+void Animator::Animation::Expire (void)
+{
+    if ( ! mbIsExpired)
+    {
+        mbIsExpired = true;
+        if (maFinishFunctor)
+            maFinishFunctor();
+    }
+}
+
+
+
+
+bool Animator::Animation::IsExpired (void)
+{
+    return mbIsExpired;
+}
+
+
+
+
+} } } // end of namespace ::sd::slidesorter::controller