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 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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 * specific language governing permissions and limitations
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#include "precompiled_sd.hxx"

#include "SlsViewCacheContext.hxx"

#include "SlideSorter.hxx"
#include "model/SlideSorterModel.hxx"
#include "model/SlsPageDescriptor.hxx"
#include "model/SlsPageEnumerationProvider.hxx"
#include "view/SlideSorterView.hxx"
#include "sdpage.hxx"
#include "Window.hxx"
#include "drawdoc.hxx"
#include "tools/IdleDetection.hxx"
#include <svx/svdpage.hxx>
#include <svx/sdr/contact/viewcontact.hxx>
#include <vcl/window.hxx>
#include <svx/sdr/contact/objectcontact.hxx>

namespace sd { namespace slidesorter { namespace view {


ViewCacheContext::ViewCacheContext (SlideSorter& rSlideSorter)
    : mrModel(rSlideSorter.GetModel()),
      mrSlideSorter(rSlideSorter)
{
}




ViewCacheContext::~ViewCacheContext (void)
{
}




void ViewCacheContext::NotifyPreviewCreation (
    cache::CacheKey aKey,
    const Bitmap&)
{
    const model::SharedPageDescriptor pDescriptor (GetDescriptor(aKey));
    if (pDescriptor.get() != NULL)
    {
        // Force a repaint that will trigger their re-creation.
        mrSlideSorter.GetView().RequestRepaint(pDescriptor);
    }
    else
    {
        OSL_ASSERT(pDescriptor);
    }
}




bool ViewCacheContext::IsIdle (void)
{
    sal_Int32 nIdleState (tools::IdleDetection::GetIdleState(mrSlideSorter.GetContentWindow().get()));
    if (nIdleState == tools::IdleDetection::IDET_IDLE)
        return true;
    else
        return false;
}




bool ViewCacheContext::IsVisible (cache::CacheKey aKey)
{
    const model::SharedPageDescriptor pDescriptor (GetDescriptor(aKey));
    return pDescriptor && pDescriptor->HasState(model::PageDescriptor::ST_Visible);
}




const SdrPage* ViewCacheContext::GetPage (cache::CacheKey aKey)
{
    return static_cast<const SdrPage*>(aKey);
}




::boost::shared_ptr<std::vector<cache::CacheKey> > ViewCacheContext::GetEntryList (bool bVisible)
{
    ::boost::shared_ptr<std::vector<cache::CacheKey> > pKeys (new std::vector<cache::CacheKey>());

    model::PageEnumeration aPageEnumeration (
        bVisible
            ? model::PageEnumerationProvider::CreateVisiblePagesEnumeration(mrModel)
            : model::PageEnumerationProvider::CreateAllPagesEnumeration(mrModel));

    while (aPageEnumeration.HasMoreElements())
    {
        model::SharedPageDescriptor pDescriptor (aPageEnumeration.GetNextElement());
        pKeys->push_back(pDescriptor->GetPage());
    }

    return pKeys;
}




sal_Int32 ViewCacheContext::GetPriority (cache::CacheKey aKey)
{
    return - (static_cast<const SdrPage*>(aKey)->GetPageNum()-1) / 2;
}




model::SharedPageDescriptor ViewCacheContext::GetDescriptor (cache::CacheKey aKey)
{
    sal_uInt16 nPageIndex ((static_cast<const SdrPage*>(aKey)->GetPageNum() - 1) / 2);
    return mrModel.GetPageDescriptor(nPageIndex);
}




::com::sun::star::uno::Reference<com::sun::star::uno::XInterface> ViewCacheContext::GetModel (void)
{
    if (mrModel.GetDocument() == NULL)
        return NULL;
    else
        return mrModel.GetDocument()->getUnoModel();
}

} } } // end of namespace ::sd::slidesorter::view