office-gobmx/sd/source/ui/presenter/PresenterPreviewCache.cxx

515 lines
13 KiB
C++

/*************************************************************************
*
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*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
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*
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sd.hxx"
#include "precompiled_sd.hxx"
#include "PresenterPreviewCache.hxx"
#include "cache/SlsCacheContext.hxx"
#include "tools/IdleDetection.hxx"
#include "sdpage.hxx"
#include <cppcanvas/vclfactory.hxx>
#include <com/sun/star/drawing/XDrawPage.hpp>
#include <com/sun/star/rendering/XBitmapCanvas.hpp>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::sd::slidesorter::cache;
using ::rtl::OUString;
namespace sd { namespace presenter {
class PresenterPreviewCache::PresenterCacheContext : public CacheContext
{
public:
PresenterCacheContext (void);
virtual ~PresenterCacheContext (void);
void SetDocumentSlides (
const Reference<container::XIndexAccess>& rxSlides,
const Reference<XInterface>& rxDocument);
void SetVisibleSlideRange (
const sal_Int32 nFirstVisibleSlideIndex,
const sal_Int32 nLastVisibleSlideIndex);
const SdrPage* GetPage (const sal_Int32 nSlideIndex) const;
void AddPreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);
void RemovePreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);
// CacheContext
virtual void NotifyPreviewCreation (
CacheKey aKey, const ::boost::shared_ptr<BitmapEx>& rPreview);
virtual bool IsIdle (void);
virtual bool IsVisible (CacheKey aKey);
virtual const SdrPage* GetPage (CacheKey aKey);
virtual ::boost::shared_ptr<std::vector<CacheKey> > GetEntryList (bool bVisible);
virtual sal_Int32 GetPriority (CacheKey aKey);
virtual ::com::sun::star::uno::Reference<com::sun::star::uno::XInterface> GetModel (void);
private:
Reference<container::XIndexAccess> mxSlides;
Reference<XInterface> mxDocument;
sal_Int32 mnFirstVisibleSlideIndex;
sal_Int32 mnLastVisibleSlideIndex;
typedef ::std::vector<css::uno::Reference<css::drawing::XSlidePreviewCacheListener> > ListenerContainer;
ListenerContainer maListeners;
void CallListeners (const sal_Int32 nSlideIndex);
};
//===== Service ===============================================================
Reference<XInterface> SAL_CALL PresenterPreviewCache_createInstance (
const Reference<XComponentContext>& rxContext)
{
return Reference<XInterface>(static_cast<XWeak*>(new PresenterPreviewCache(rxContext)));
}
::rtl::OUString PresenterPreviewCache_getImplementationName (void) throw(RuntimeException)
{
return OUString::createFromAscii("com.sun.star.comp.Draw.PresenterPreviewCache");
}
Sequence<rtl::OUString> SAL_CALL PresenterPreviewCache_getSupportedServiceNames (void)
throw (RuntimeException)
{
static const ::rtl::OUString sServiceName(
::rtl::OUString::createFromAscii("com.sun.star.drawing.PresenterPreviewCache"));
return Sequence<rtl::OUString>(&sServiceName, 1);
}
//===== PresenterPreviewCache =================================================
PresenterPreviewCache::PresenterPreviewCache (const Reference<XComponentContext>& rxContext)
: PresenterPreviewCacheInterfaceBase(m_aMutex),
maPreviewSize(Size(200,200)),
mpCacheContext(new PresenterCacheContext()),
mpCache(new PageCache(maPreviewSize, mpCacheContext))
{
(void)rxContext;
}
PresenterPreviewCache::~PresenterPreviewCache (void)
{
}
//----- XInitialize -----------------------------------------------------------
void SAL_CALL PresenterPreviewCache::initialize (const Sequence<Any>& rArguments)
throw(Exception, RuntimeException)
{
if (rArguments.getLength() != 0)
throw RuntimeException();
}
//----- XSlidePreviewCache ----------------------------------------------------
void SAL_CALL PresenterPreviewCache::setDocumentSlides (
const Reference<container::XIndexAccess>& rxSlides,
const Reference<XInterface>& rxDocument)
throw (RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCacheContext.get()!=NULL);
mpCacheContext->SetDocumentSlides(rxSlides, rxDocument);
}
void SAL_CALL PresenterPreviewCache::setVisibleRange (
sal_Int32 nFirstVisibleSlideIndex,
sal_Int32 nLastVisibleSlideIndex)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCacheContext.get()!=NULL);
mpCacheContext->SetVisibleSlideRange (nFirstVisibleSlideIndex, nLastVisibleSlideIndex);
}
void SAL_CALL PresenterPreviewCache::setPreviewSize (
const css::geometry::IntegerSize2D& rSize)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCache.get()!=NULL);
maPreviewSize = Size(rSize.Width, rSize.Height);
mpCache->ChangeSize(maPreviewSize);
}
Reference<rendering::XBitmap> SAL_CALL PresenterPreviewCache::getSlidePreview (
sal_Int32 nSlideIndex,
const Reference<rendering::XCanvas>& rxCanvas)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCacheContext.get()!=NULL);
cppcanvas::BitmapCanvasSharedPtr pCanvas (
cppcanvas::VCLFactory::getInstance().createCanvas(
Reference<rendering::XBitmapCanvas>(rxCanvas, UNO_QUERY)));
const SdrPage* pPage = mpCacheContext->GetPage(nSlideIndex);
if (pPage == NULL)
throw RuntimeException();
const BitmapEx aPreview (mpCache->GetPreviewBitmap(pPage, maPreviewSize));
if (aPreview.IsEmpty())
return NULL;
else
return cppcanvas::VCLFactory::getInstance().createBitmap(
pCanvas,
aPreview)->getUNOBitmap();
}
void SAL_CALL PresenterPreviewCache::addPreviewCreationNotifyListener (
const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
throw (css::uno::RuntimeException)
{
if (rBHelper.bDisposed || rBHelper.bInDispose)
return;
if (rxListener.is())
mpCacheContext->AddPreviewCreationNotifyListener(rxListener);
}
void SAL_CALL PresenterPreviewCache::removePreviewCreationNotifyListener (
const css::uno::Reference<css::drawing::XSlidePreviewCacheListener>& rxListener)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
mpCacheContext->RemovePreviewCreationNotifyListener(rxListener);
}
void SAL_CALL PresenterPreviewCache::pause (void)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCache.get()!=NULL);
mpCache->Pause();
}
void SAL_CALL PresenterPreviewCache::resume (void)
throw (css::uno::RuntimeException)
{
ThrowIfDisposed();
OSL_ASSERT(mpCache.get()!=NULL);
mpCache->Resume();
}
//-----------------------------------------------------------------------------
void PresenterPreviewCache::ThrowIfDisposed (void)
throw (::com::sun::star::lang::DisposedException)
{
if (rBHelper.bDisposed || rBHelper.bInDispose)
{
throw lang::DisposedException (
::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
"PresenterPreviewCache object has already been disposed")),
static_cast<uno::XWeak*>(this));
}
}
//===== PresenterPreviewCache::PresenterCacheContext ==========================
PresenterPreviewCache::PresenterCacheContext::PresenterCacheContext (void)
: mxSlides(),
mxDocument(),
mnFirstVisibleSlideIndex(-1),
mnLastVisibleSlideIndex(-1),
maListeners()
{
}
PresenterPreviewCache::PresenterCacheContext::~PresenterCacheContext (void)
{
}
void PresenterPreviewCache::PresenterCacheContext::SetDocumentSlides (
const Reference<container::XIndexAccess>& rxSlides,
const Reference<XInterface>& rxDocument)
{
mxSlides = rxSlides;
mxDocument = rxDocument;
mnFirstVisibleSlideIndex = -1;
mnLastVisibleSlideIndex = -1;
}
void PresenterPreviewCache::PresenterCacheContext::SetVisibleSlideRange (
const sal_Int32 nFirstVisibleSlideIndex,
const sal_Int32 nLastVisibleSlideIndex)
{
if (nFirstVisibleSlideIndex > nLastVisibleSlideIndex || nFirstVisibleSlideIndex<0)
{
mnFirstVisibleSlideIndex = -1;
mnLastVisibleSlideIndex = -1;
}
else
{
mnFirstVisibleSlideIndex = nFirstVisibleSlideIndex;
mnLastVisibleSlideIndex = nLastVisibleSlideIndex;
}
if (mxSlides.is() && mnLastVisibleSlideIndex >= mxSlides->getCount())
mnLastVisibleSlideIndex = mxSlides->getCount() - 1;
}
void PresenterPreviewCache::PresenterCacheContext::AddPreviewCreationNotifyListener (
const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
{
maListeners.push_back(rxListener);
}
void PresenterPreviewCache::PresenterCacheContext::RemovePreviewCreationNotifyListener (
const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
{
ListenerContainer::iterator iListener;
for (iListener=maListeners.begin(); iListener!=maListeners.end(); ++iListener)
if (*iListener == rxListener)
{
maListeners.erase(iListener);
return;
}
}
//----- CacheContext ----------------------------------------------------------
void PresenterPreviewCache::PresenterCacheContext::NotifyPreviewCreation (
CacheKey aKey,
const ::boost::shared_ptr<BitmapEx>& rPreview)
{
(void)rPreview;
if ( ! mxSlides.is())
return;
const sal_Int32 nCount(mxSlides->getCount());
for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
if (aKey == GetPage(nIndex))
CallListeners(nIndex);
}
bool PresenterPreviewCache::PresenterCacheContext::IsIdle (void)
{
return true;
/*
sal_Int32 nIdleState (tools::IdleDetection::GetIdleState(NULL));
if (nIdleState == tools::IdleDetection::IDET_IDLE)
return true;
else
return false;
*/
}
bool PresenterPreviewCache::PresenterCacheContext::IsVisible (CacheKey aKey)
{
if (mnFirstVisibleSlideIndex < 0)
return false;
for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
{
const SdrPage* pPage = GetPage(nIndex);
if (pPage == static_cast<const SdrPage*>(aKey))
return true;
}
return false;
}
const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (CacheKey aKey)
{
return static_cast<const SdrPage*>(aKey);
}
::boost::shared_ptr<std::vector<CacheKey> >
PresenterPreviewCache::PresenterCacheContext::GetEntryList (bool bVisible)
{
::boost::shared_ptr<std::vector<CacheKey> > pKeys (new std::vector<CacheKey>());
if ( ! mxSlides.is())
return pKeys;
const sal_Int32 nFirstIndex (bVisible ? mnFirstVisibleSlideIndex : 0);
const sal_Int32 nLastIndex (bVisible ? mnLastVisibleSlideIndex : mxSlides->getCount()-1);
if (nFirstIndex < 0)
return pKeys;
for (sal_Int32 nIndex=nFirstIndex; nIndex<=nLastIndex; ++nIndex)
{
pKeys->push_back(GetPage(nIndex));
}
return pKeys;
}
sal_Int32 PresenterPreviewCache::PresenterCacheContext::GetPriority (CacheKey aKey)
{
if ( ! mxSlides.is())
return 0;
const sal_Int32 nCount (mxSlides->getCount());
for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
if (aKey == GetPage(nIndex))
return -nCount-1+nIndex;
for (sal_Int32 nIndex=0; nIndex<=nCount; ++nIndex)
if (aKey == GetPage(nIndex))
return nIndex;
return 0;
}
Reference<XInterface> PresenterPreviewCache::PresenterCacheContext::GetModel (void)
{
return mxDocument;
}
//-----------------------------------------------------------------------------
const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (
const sal_Int32 nSlideIndex) const
{
if ( ! mxSlides.is())
return NULL;
if (nSlideIndex < 0 || nSlideIndex >= mxSlides->getCount())
return NULL;
Reference<drawing::XDrawPage> xSlide (mxSlides->getByIndex(nSlideIndex), UNO_QUERY);
const SdPage* pPage = SdPage::getImplementation(xSlide);
return dynamic_cast<const SdrPage*>(pPage);
}
void PresenterPreviewCache::PresenterCacheContext::CallListeners (
const sal_Int32 nIndex)
{
ListenerContainer aListeners (maListeners);
ListenerContainer::const_iterator iListener;
for (iListener=aListeners.begin(); iListener!=aListeners.end(); ++iListener)
{
try
{
(*iListener)->notifyPreviewCreation(nIndex);
}
catch (lang::DisposedException&)
{
RemovePreviewCreationNotifyListener(*iListener);
}
}
}
} } // end of namespace ::sd::presenter