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Diffstat (limited to 'slideshow/source/engine/screenupdater.cxx')
| -rw-r--r-- | slideshow/source/engine/screenupdater.cxx | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/slideshow/source/engine/screenupdater.cxx b/slideshow/source/engine/screenupdater.cxx deleted file mode 100644 index 5d39b23c0..000000000 --- a/slideshow/source/engine/screenupdater.cxx +++ /dev/null @@ -1,271 +0,0 @@ -/* -*- 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. - * - ************************************************************************/ -#include "precompiled_slideshow.hxx" - -#include "screenupdater.hxx" -#include "listenercontainer.hxx" - -#include <boost/bind.hpp> -#include <vector> -#include <algorithm> - -namespace { - class UpdateLock : public ::slideshow::internal::ScreenUpdater::UpdateLock - { - public: - UpdateLock (::slideshow::internal::ScreenUpdater& rUpdater, const bool bStartLocked); - virtual ~UpdateLock (void); - virtual void Activate (void); - private: - ::slideshow::internal::ScreenUpdater& mrUpdater; - bool mbIsActivated; - }; -} - -namespace slideshow -{ -namespace internal -{ - typedef std::vector< - std::pair<UnoViewSharedPtr,bool> > UpdateRequestVector; - - struct ScreenUpdater::ImplScreenUpdater - { - /** List of registered ViewUpdaters, to consult for necessary - updates - */ - ThreadUnsafeListenerContainer< - ViewUpdateSharedPtr, - std::vector<ViewUpdateSharedPtr> > maUpdaters; - - /// Views that have been notified for update - UpdateRequestVector maViewUpdateRequests; - - /// List of View. Used to issue screen updates on. - UnoViewContainer const& mrViewContainer; - - /// True, if a notifyUpdate() for all views has been issued. - bool mbUpdateAllRequest; - - /// True, if at least one notifyUpdate() call had bViewClobbered set - bool mbViewClobbered; - - /// The screen is updated only when mnLockCount==0 - sal_Int32 mnLockCount; - - explicit ImplScreenUpdater( UnoViewContainer const& rViewContainer ) : - maUpdaters(), - maViewUpdateRequests(), - mrViewContainer(rViewContainer), - mbUpdateAllRequest(false), - mbViewClobbered(false), - mnLockCount(0) - {} - }; - - ScreenUpdater::ScreenUpdater( UnoViewContainer const& rViewContainer ) : - mpImpl(new ImplScreenUpdater(rViewContainer) ) - { - } - - ScreenUpdater::~ScreenUpdater() - { - // outline because of pimpl - } - - void ScreenUpdater::notifyUpdate() - { - mpImpl->mbUpdateAllRequest = true; - } - - void ScreenUpdater::notifyUpdate( const UnoViewSharedPtr& rView, - bool bViewClobbered ) - { - mpImpl->maViewUpdateRequests.push_back( - std::make_pair(rView, bViewClobbered) ); - - if( bViewClobbered ) - mpImpl->mbViewClobbered = true; - } - - void ScreenUpdater::commitUpdates() - { - if (mpImpl->mnLockCount > 0) - return; - - // cases: - // - // (a) no update necessary at all - // - // (b) no ViewUpdate-generated update - // I. update all views requested -> for_each( mrViewContainer ) - // II. update some views requested -> for_each( maViewUpdateRequests ) - // - // (c) ViewUpdate-triggered update - update all views - // - - // any ViewUpdate-triggered updates? - const bool bViewUpdatesNeeded( - mpImpl->maUpdaters.apply( - boost::mem_fn(&ViewUpdate::needsUpdate)) ); - - if( bViewUpdatesNeeded ) - { - mpImpl->maUpdaters.applyAll( - boost::mem_fn((bool (ViewUpdate::*)())&ViewUpdate::update) ); - } - - if( bViewUpdatesNeeded || - mpImpl->mbUpdateAllRequest ) - { - // unconditionally update all views - std::for_each( mpImpl->mrViewContainer.begin(), - mpImpl->mrViewContainer.end(), - mpImpl->mbViewClobbered ? - boost::mem_fn(&View::paintScreen) : - boost::mem_fn(&View::updateScreen) ); - } - else if( !mpImpl->maViewUpdateRequests.empty() ) - { - // update notified views only - UpdateRequestVector::const_iterator aIter( - mpImpl->maViewUpdateRequests.begin() ); - const UpdateRequestVector::const_iterator aEnd( - mpImpl->maViewUpdateRequests.end() ); - while( aIter != aEnd ) - { - // TODO(P1): this is O(n^2) in the number of views, if - // lots of views notify updates. - const UnoViewVector::const_iterator aEndOfViews( - mpImpl->mrViewContainer.end() ); - UnoViewVector::const_iterator aFoundView; - if( (aFoundView=std::find(mpImpl->mrViewContainer.begin(), - aEndOfViews, - aIter->first)) != aEndOfViews ) - { - if( aIter->second ) - (*aFoundView)->paintScreen(); // force-paint - else - (*aFoundView)->updateScreen(); // update changes only - } - - ++aIter; - } - } - - // done - clear requests - mpImpl->mbViewClobbered = false; - mpImpl->mbUpdateAllRequest = false; - UpdateRequestVector().swap( mpImpl->maViewUpdateRequests ); - } - - void ScreenUpdater::addViewUpdate( ViewUpdateSharedPtr const& rViewUpdate ) - { - mpImpl->maUpdaters.add( rViewUpdate ); - } - - void ScreenUpdater::removeViewUpdate( ViewUpdateSharedPtr const& rViewUpdate ) - { - mpImpl->maUpdaters.remove( rViewUpdate ); - } - - void ScreenUpdater::requestImmediateUpdate() - { - if (mpImpl->mnLockCount > 0) - return; - - // TODO(F2): This will interfere with other updates, since it - // happens out-of-sync with main animation loop. Might cause - // artifacts. - std::for_each( mpImpl->mrViewContainer.begin(), - mpImpl->mrViewContainer.end(), - boost::mem_fn(&View::updateScreen) ); - } - - void ScreenUpdater::lockUpdates (void) - { - ++mpImpl->mnLockCount; - OSL_ASSERT(mpImpl->mnLockCount>0); - } - - void ScreenUpdater::unlockUpdates (void) - { - OSL_ASSERT(mpImpl->mnLockCount>0); - if (mpImpl->mnLockCount > 0) - { - --mpImpl->mnLockCount; - if (mpImpl->mnLockCount) - commitUpdates(); - } - } - - ::boost::shared_ptr<ScreenUpdater::UpdateLock> ScreenUpdater::createLock (const bool bStartLocked) - { - return ::boost::shared_ptr<ScreenUpdater::UpdateLock>(new ::UpdateLock(*this, bStartLocked)); - } - - -} // namespace internal -} // namespace slideshow - -namespace { - -UpdateLock::UpdateLock ( - ::slideshow::internal::ScreenUpdater& rUpdater, - const bool bStartLocked) - : mrUpdater(rUpdater), - mbIsActivated(false) -{ - if (bStartLocked) - Activate(); -} - - - - -UpdateLock::~UpdateLock (void) -{ - if (mbIsActivated) - mrUpdater.unlockUpdates(); -} - - - - -void UpdateLock::Activate (void) -{ - if ( ! mbIsActivated) - { - mbIsActivated = true; - mrUpdater.lockUpdates(); - } -} - -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |