518 lines
14 KiB
C++
518 lines
14 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: PresenterPreviewCache.cxx,v $
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*
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* $Revision: 1.2 $
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*
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* last change: $Author: kz $ $Date: 2008-04-03 14:07:32 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#include "PresenterPreviewCache.hxx"
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#include "cache/SlsCacheContext.hxx"
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#include "tools/IdleDetection.hxx"
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#include "sdpage.hxx"
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#include <cppcanvas/vclfactory.hxx>
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#include <com/sun/star/drawing/XDrawPage.hpp>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using namespace ::sd::slidesorter::cache;
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using ::rtl::OUString;
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namespace sd { namespace presenter {
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class PresenterPreviewCache::PresenterCacheContext : public CacheContext
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{
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public:
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PresenterCacheContext (void);
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virtual ~PresenterCacheContext (void);
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void SetDocumentSlides (
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const Reference<container::XIndexAccess>& rxSlides,
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const Reference<XInterface>& rxDocument);
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void SetVisibleSlideRange (
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const sal_Int32 nFirstVisibleSlideIndex,
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const sal_Int32 nLastVisibleSlideIndex);
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const SdrPage* GetPage (const sal_Int32 nSlideIndex) const;
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void AddPreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);
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void RemovePreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);
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// CacheContext
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virtual void NotifyPreviewCreation (
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CacheKey aKey, const ::boost::shared_ptr<BitmapEx>& rPreview);
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virtual bool IsIdle (void);
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virtual bool IsVisible (CacheKey aKey);
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virtual const SdrPage* GetPage (CacheKey aKey);
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virtual ::boost::shared_ptr<std::vector<CacheKey> > GetEntryList (bool bVisible);
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virtual sal_Int32 GetPriority (CacheKey aKey);
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virtual ::com::sun::star::uno::Reference<com::sun::star::uno::XInterface> GetModel (void);
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private:
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Reference<container::XIndexAccess> mxSlides;
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Reference<XInterface> mxDocument;
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sal_Int32 mnFirstVisibleSlideIndex;
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sal_Int32 mnLastVisibleSlideIndex;
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typedef ::std::vector<css::uno::Reference<css::drawing::XSlidePreviewCacheListener> > ListenerContainer;
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ListenerContainer maListeners;
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void CallListeners (const sal_Int32 nSlideIndex);
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};
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//===== Service ===============================================================
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Reference<XInterface> SAL_CALL PresenterPreviewCache_createInstance (
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const Reference<XComponentContext>& rxContext)
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{
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return Reference<XInterface>(static_cast<XWeak*>(new PresenterPreviewCache(rxContext)));
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}
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::rtl::OUString PresenterPreviewCache_getImplementationName (void) throw(RuntimeException)
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{
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return OUString::createFromAscii("com.sun.star.comp.Draw.PresenterPreviewCache");
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}
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Sequence<rtl::OUString> SAL_CALL PresenterPreviewCache_getSupportedServiceNames (void)
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throw (RuntimeException)
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{
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static const ::rtl::OUString sServiceName(
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::rtl::OUString::createFromAscii("com.sun.star.drawing.PresenterPreviewCache"));
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return Sequence<rtl::OUString>(&sServiceName, 1);
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}
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//===== PresenterPreviewCache =================================================
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PresenterPreviewCache::PresenterPreviewCache (const Reference<XComponentContext>& rxContext)
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: PresenterPreviewCacheInterfaceBase(m_aMutex),
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maPreviewSize(Size(200,200)),
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mpCacheContext(new PresenterCacheContext()),
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mpCache(new PageCache(maPreviewSize, mpCacheContext))
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{
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(void)rxContext;
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}
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PresenterPreviewCache::~PresenterPreviewCache (void)
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{
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}
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//----- XInitialize -----------------------------------------------------------
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void SAL_CALL PresenterPreviewCache::initialize (const Sequence<Any>& rArguments)
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throw(Exception, RuntimeException)
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{
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if (rArguments.getLength() != 0)
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throw RuntimeException();
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}
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//----- XSlidePreviewCache ----------------------------------------------------
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void SAL_CALL PresenterPreviewCache::setDocumentSlides (
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const Reference<container::XIndexAccess>& rxSlides,
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const Reference<XInterface>& rxDocument)
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throw (RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCacheContext.get()!=NULL);
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mpCacheContext->SetDocumentSlides(rxSlides, rxDocument);
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}
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void SAL_CALL PresenterPreviewCache::setVisibleRange (
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sal_Int32 nFirstVisibleSlideIndex,
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sal_Int32 nLastVisibleSlideIndex)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCacheContext.get()!=NULL);
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mpCacheContext->SetVisibleSlideRange (nFirstVisibleSlideIndex, nLastVisibleSlideIndex);
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}
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void SAL_CALL PresenterPreviewCache::setPreviewSize (
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const css::geometry::IntegerSize2D& rSize)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCache.get()!=NULL);
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maPreviewSize = Size(rSize.Width, rSize.Height);
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mpCache->ChangeSize(maPreviewSize);
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}
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Reference<rendering::XBitmap> SAL_CALL PresenterPreviewCache::getSlidePreview (
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sal_Int32 nSlideIndex,
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const Reference<rendering::XCanvas>& rxCanvas)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCacheContext.get()!=NULL);
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cppcanvas::BitmapCanvasSharedPtr pCanvas (
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cppcanvas::VCLFactory::getInstance().createCanvas(
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Reference<rendering::XBitmapCanvas>(rxCanvas, UNO_QUERY)));
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const SdrPage* pPage = mpCacheContext->GetPage(nSlideIndex);
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if (pPage == NULL)
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throw RuntimeException();
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const BitmapEx aPreview (mpCache->GetPreviewBitmap(pPage, maPreviewSize));
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if (aPreview.IsEmpty())
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return NULL;
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else
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return cppcanvas::VCLFactory::getInstance().createBitmap(
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pCanvas,
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aPreview)->getUNOBitmap();
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}
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void SAL_CALL PresenterPreviewCache::addPreviewCreationNotifyListener (
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const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
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throw (css::uno::RuntimeException)
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{
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if (rBHelper.bDisposed || rBHelper.bInDispose)
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return;
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if (rxListener.is())
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mpCacheContext->AddPreviewCreationNotifyListener(rxListener);
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}
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void SAL_CALL PresenterPreviewCache::removePreviewCreationNotifyListener (
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const css::uno::Reference<css::drawing::XSlidePreviewCacheListener>& rxListener)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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mpCacheContext->RemovePreviewCreationNotifyListener(rxListener);
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}
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void SAL_CALL PresenterPreviewCache::pause (void)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCache.get()!=NULL);
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mpCache->Pause();
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}
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void SAL_CALL PresenterPreviewCache::resume (void)
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throw (css::uno::RuntimeException)
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{
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ThrowIfDisposed();
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OSL_ASSERT(mpCache.get()!=NULL);
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mpCache->Resume();
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}
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//-----------------------------------------------------------------------------
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void PresenterPreviewCache::ThrowIfDisposed (void)
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throw (::com::sun::star::lang::DisposedException)
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{
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if (rBHelper.bDisposed || rBHelper.bInDispose)
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{
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throw lang::DisposedException (
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
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"PresenterPreviewCache object has already been disposed")),
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static_cast<uno::XWeak*>(this));
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}
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}
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//===== PresenterPreviewCache::PresenterCacheContext ==========================
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PresenterPreviewCache::PresenterCacheContext::PresenterCacheContext (void)
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: mxSlides(),
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mxDocument(),
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mnFirstVisibleSlideIndex(-1),
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mnLastVisibleSlideIndex(-1),
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maListeners()
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{
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}
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PresenterPreviewCache::PresenterCacheContext::~PresenterCacheContext (void)
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{
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}
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void PresenterPreviewCache::PresenterCacheContext::SetDocumentSlides (
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const Reference<container::XIndexAccess>& rxSlides,
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const Reference<XInterface>& rxDocument)
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{
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mxSlides = rxSlides;
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mxDocument = rxDocument;
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mnFirstVisibleSlideIndex = -1;
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mnLastVisibleSlideIndex = -1;
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}
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void PresenterPreviewCache::PresenterCacheContext::SetVisibleSlideRange (
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const sal_Int32 nFirstVisibleSlideIndex,
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const sal_Int32 nLastVisibleSlideIndex)
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{
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if (nFirstVisibleSlideIndex > nLastVisibleSlideIndex || nFirstVisibleSlideIndex<0)
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{
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mnFirstVisibleSlideIndex = -1;
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mnLastVisibleSlideIndex = -1;
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}
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else
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{
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mnFirstVisibleSlideIndex = nFirstVisibleSlideIndex;
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mnLastVisibleSlideIndex = nLastVisibleSlideIndex;
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}
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if (mxSlides.is() && mnLastVisibleSlideIndex >= mxSlides->getCount())
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mnLastVisibleSlideIndex = mxSlides->getCount() - 1;
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}
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void PresenterPreviewCache::PresenterCacheContext::AddPreviewCreationNotifyListener (
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const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
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{
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maListeners.push_back(rxListener);
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}
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void PresenterPreviewCache::PresenterCacheContext::RemovePreviewCreationNotifyListener (
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const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
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{
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ListenerContainer::iterator iListener;
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for (iListener=maListeners.begin(); iListener!=maListeners.end(); ++iListener)
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if (*iListener == rxListener)
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{
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maListeners.erase(iListener);
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return;
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}
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}
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//----- CacheContext ----------------------------------------------------------
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void PresenterPreviewCache::PresenterCacheContext::NotifyPreviewCreation (
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CacheKey aKey,
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const ::boost::shared_ptr<BitmapEx>& rPreview)
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{
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(void)rPreview;
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if ( ! mxSlides.is())
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return;
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const sal_Int32 nCount(mxSlides->getCount());
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for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
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if (aKey == GetPage(nIndex))
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CallListeners(nIndex);
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}
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bool PresenterPreviewCache::PresenterCacheContext::IsIdle (void)
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{
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return true;
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/*
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sal_Int32 nIdleState (tools::IdleDetection::GetIdleState(NULL));
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if (nIdleState == tools::IdleDetection::IDET_IDLE)
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return true;
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else
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return false;
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*/
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}
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bool PresenterPreviewCache::PresenterCacheContext::IsVisible (CacheKey aKey)
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{
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if (mnFirstVisibleSlideIndex < 0)
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return false;
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for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
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{
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const SdrPage* pPage = GetPage(nIndex);
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if (pPage == static_cast<const SdrPage*>(aKey))
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return true;
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}
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return false;
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}
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const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (CacheKey aKey)
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{
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return static_cast<const SdrPage*>(aKey);
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}
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::boost::shared_ptr<std::vector<CacheKey> >
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PresenterPreviewCache::PresenterCacheContext::GetEntryList (bool bVisible)
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{
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::boost::shared_ptr<std::vector<CacheKey> > pKeys (new std::vector<CacheKey>());
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if ( ! mxSlides.is())
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return pKeys;
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const sal_Int32 nFirstIndex (bVisible ? mnFirstVisibleSlideIndex : 0);
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const sal_Int32 nLastIndex (bVisible ? mnLastVisibleSlideIndex : mxSlides->getCount()-1);
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if (nFirstIndex < 0)
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return pKeys;
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for (sal_Int32 nIndex=nFirstIndex; nIndex<=nLastIndex; ++nIndex)
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{
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pKeys->push_back(GetPage(nIndex));
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}
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return pKeys;
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}
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sal_Int32 PresenterPreviewCache::PresenterCacheContext::GetPriority (CacheKey aKey)
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{
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if ( ! mxSlides.is())
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return 0;
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const sal_Int32 nCount (mxSlides->getCount());
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for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
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if (aKey == GetPage(nIndex))
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return -nCount-1+nIndex;
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for (sal_Int32 nIndex=0; nIndex<=nCount; ++nIndex)
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if (aKey == GetPage(nIndex))
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return nIndex;
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return 0;
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}
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Reference<XInterface> PresenterPreviewCache::PresenterCacheContext::GetModel (void)
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{
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return mxDocument;
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}
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//-----------------------------------------------------------------------------
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const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (
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const sal_Int32 nSlideIndex) const
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{
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if ( ! mxSlides.is())
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return NULL;
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if (nSlideIndex < 0 || nSlideIndex >= mxSlides->getCount())
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return NULL;
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Reference<drawing::XDrawPage> xSlide (mxSlides->getByIndex(nSlideIndex), UNO_QUERY);
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const SdPage* pPage = SdPage::getImplementation(xSlide);
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return dynamic_cast<const SdrPage*>(pPage);
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}
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void PresenterPreviewCache::PresenterCacheContext::CallListeners (
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const sal_Int32 nIndex)
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{
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ListenerContainer aListeners (maListeners);
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ListenerContainer::const_iterator iListener;
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for (iListener=aListeners.begin(); iListener!=aListeners.end(); ++iListener)
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{
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try
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{
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(*iListener)->notifyPreviewCreation(nIndex);
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}
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catch (lang::DisposedException&)
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{
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RemovePreviewCreationNotifyListener(*iListener);
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}
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}
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}
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} } // end of namespace ::sd::presenter
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