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Diffstat (limited to 'slideshow/source/engine/slide/layermanager.cxx')
| -rw-r--r-- | slideshow/source/engine/slide/layermanager.cxx | 926 |
1 files changed, 926 insertions, 0 deletions
diff --git a/slideshow/source/engine/slide/layermanager.cxx b/slideshow/source/engine/slide/layermanager.cxx new file mode 100644 index 000000000000..251cff3a73b3 --- /dev/null +++ b/slideshow/source/engine/slide/layermanager.cxx @@ -0,0 +1,926 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: layermanager.cxx,v $ + * $Revision: 1.6 $ + * + * 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_slideshow.hxx" + +#include <canvas/debug.hxx> +#include <tools/diagnose_ex.h> +#include <basegfx/range/b1drange.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> + +#include <comphelper/anytostring.hxx> +#include <cppuhelper/exc_hlp.hxx> + +#include <boost/bind.hpp> +#include <algorithm> + +#include "layermanager.hxx" + +using namespace ::com::sun::star; + +namespace boost +{ + // add operator!= for weak_ptr + inline bool operator!=( slideshow::internal::LayerWeakPtr const& rLHS, + slideshow::internal::LayerWeakPtr const& rRHS ) + { + return (rLHS<rRHS) || (rRHS<rLHS); + } +} + +namespace slideshow +{ + namespace internal + { + template<typename LayerFunc, + typename ShapeFunc> void LayerManager::manageViews( + LayerFunc layerFunc, + ShapeFunc shapeFunc ) + { + LayerSharedPtr pCurrLayer; + ViewLayerSharedPtr pCurrViewLayer; + LayerShapeMap::const_iterator aIter( maAllShapes.begin() ); + const LayerShapeMap::const_iterator aEnd ( maAllShapes.end() ); + while( aIter != aEnd ) + { + LayerSharedPtr pLayer = aIter->second.lock(); + if( pLayer && pLayer != pCurrLayer ) + { + pCurrLayer = pLayer; + pCurrViewLayer = layerFunc(pCurrLayer); + } + + if( pCurrViewLayer ) + shapeFunc(aIter->first,pCurrViewLayer); + + ++aIter; + } + } + + LayerManager::LayerManager( const UnoViewContainer& rViews, + const ::basegfx::B2DRange& rPageBounds, + bool bDisableAnimationZOrder ) : + mrViews(rViews), + maLayers(), + maXShapeHash( 101 ), + maAllShapes(), + maUpdateShapes(), + maPageBounds( rPageBounds ), + mnActiveSprites(0), + mbLayerAssociationDirty(false), + mbActive(false), + mbDisableAnimationZOrder(bDisableAnimationZOrder) + { + // prevent frequent resizes (won't have more than 4 layers + // for 99.9% of the cases) + maLayers.reserve(4); + + // create initial background layer + maLayers.push_back( + Layer::createBackgroundLayer( + maPageBounds )); + + // init views + std::for_each( mrViews.begin(), + mrViews.end(), + ::boost::bind(&LayerManager::viewAdded, + this, + _1) ); + } + + void LayerManager::activate( bool bSlideBackgoundPainted ) + { + mbActive = true; + maUpdateShapes.clear(); // update gets forced via area, or + // has happend outside already + + if( !bSlideBackgoundPainted ) + { + std::for_each(mrViews.begin(), + mrViews.end(), + boost::mem_fn(&View::clearAll)); + + // force update of whole slide area + std::for_each( maLayers.begin(), + maLayers.end(), + boost::bind( &Layer::addUpdateRange, + _1, + boost::cref(maPageBounds) )); + } + else + { + // clear all possibly pending update areas - content + // is there, already + std::for_each( maLayers.begin(), + maLayers.end(), + boost::mem_fn( &Layer::clearUpdateRanges )); + } + + updateShapeLayers( bSlideBackgoundPainted ); + } + + void LayerManager::deactivate() + { + // TODO(F3): This is mostly a hack. Problem is, there's + // currently no smart way of telling shapes "remove your + // sprites". Others, like MediaShapes, listen to + // start/stop animation events, which is too much overhead + // for all shapes, though. + + const bool bMoreThanOneLayer(maLayers.size() > 1); + if( mnActiveSprites || bMoreThanOneLayer ) + { + // clear all viewlayers, dump everything but the + // background layer - this will also remove all shape + // sprites + std::for_each(maAllShapes.begin(), + maAllShapes.end(), + boost::bind( &Shape::clearAllViewLayers, + boost::bind( std::select1st<LayerShapeMap::value_type>(), + _1 ))); + + for (LayerShapeMap::iterator + iShape (maAllShapes.begin()), + iEnd (maAllShapes.end()); + iShape!=iEnd; + ++iShape) + { + iShape->second.reset(); + } + + if( bMoreThanOneLayer ) + maLayers.erase(maLayers.begin()+1, + maLayers.end()); + + mbLayerAssociationDirty = true; + } + + mbActive = false; + + // only background layer left + OSL_ASSERT( maLayers.size() == 1 && maLayers.front()->isBackgroundLayer() ); + } + + void LayerManager::viewAdded( const UnoViewSharedPtr& rView ) + { + // view must be member of mrViews container + OSL_ASSERT( std::find(mrViews.begin(), + mrViews.end(), + rView) != mrViews.end() ); + + // init view content + if( mbActive ) + rView->clearAll(); + + // add View to all registered shapes + manageViews( + boost::bind(&Layer::addView, + _1, + boost::cref(rView)), + // repaint on view add + boost::bind(&Shape::addViewLayer, + _1, + _2, + true) ); + + // in case we haven't reached all layers from the + // maAllShapes, issue addView again for good measure + std::for_each( maLayers.begin(), + maLayers.end(), + boost::bind( &Layer::addView, + _1, + boost::cref(rView) )); + } + + void LayerManager::viewRemoved( const UnoViewSharedPtr& rView ) + { + // view must not be member of mrViews container anymore + OSL_ASSERT( std::find(mrViews.begin(), + mrViews.end(), + rView) == mrViews.end() ); + + // remove View from all registered shapes + manageViews( + boost::bind(&Layer::removeView, + _1, + boost::cref(rView)), + boost::bind(&Shape::removeViewLayer, + _1, + _2) ); + + // in case we haven't reached all layers from the + // maAllShapes, issue removeView again for good measure + std::for_each( maLayers.begin(), + maLayers.end(), + boost::bind( &Layer::removeView, + _1, + boost::cref(rView) )); + } + + void LayerManager::viewChanged( const UnoViewSharedPtr& rView ) + { + (void)rView; + + // view must be member of mrViews container + OSL_ASSERT( std::find(mrViews.begin(), + mrViews.end(), + rView) != mrViews.end() ); + + // TODO(P2): selectively update only changed view + viewsChanged(); + } + + void LayerManager::viewsChanged() + { + if( !mbActive ) + return; + + // clear view area + ::std::for_each( mrViews.begin(), + mrViews.end(), + ::boost::mem_fn(&View::clearAll) ); + + // TODO(F3): resize and repaint all layers + + // render all shapes + std::for_each( maAllShapes.begin(), + maAllShapes.end(), + boost::bind(&Shape::render, + boost::bind( ::std::select1st<LayerShapeMap::value_type>(), _1)) ); + } + + void LayerManager::addShape( const ShapeSharedPtr& rShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + ENSURE_OR_THROW( rShape, "LayerManager::addShape(): invalid Shape" ); + + // add shape to XShape hash map + if( !maXShapeHash.insert( + XShapeHash::value_type( rShape->getXShape(), + rShape) ).second ) + { + // entry already present, nothing to do + return; + } + + // add shape to appropriate layer + implAddShape( rShape ); + } + + void LayerManager::putShape2BackgroundLayer( LayerShapeMap::value_type& rShapeEntry ) + { + LayerSharedPtr& rBgLayer( maLayers.front() ); + rBgLayer->setShapeViews(rShapeEntry.first); + rShapeEntry.second = rBgLayer; + } + + void LayerManager::implAddShape( const ShapeSharedPtr& rShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + ENSURE_OR_THROW( rShape, "LayerManager::implAddShape(): invalid Shape" ); + + LayerShapeMap::value_type aValue (rShape, LayerWeakPtr()); + + OSL_ASSERT( maAllShapes.find(rShape) == maAllShapes.end() ); // shape must not be added already + mbLayerAssociationDirty = true; + + if( mbDisableAnimationZOrder ) + putShape2BackgroundLayer( + *maAllShapes.insert(aValue).first ); + else + maAllShapes.insert(aValue); + + // update shape, it's just added and not yet painted + if( rShape->isVisible() ) + notifyShapeUpdate( rShape ); + } + + bool LayerManager::removeShape( const ShapeSharedPtr& rShape ) + { + // remove shape from XShape hash map + if( maXShapeHash.erase( rShape->getXShape() ) == 0 ) + return false; // shape not in map + + OSL_ASSERT( maAllShapes.find(rShape) != maAllShapes.end() ); + + implRemoveShape( rShape ); + + return true; + } + + void LayerManager::implRemoveShape( const ShapeSharedPtr& rShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + ENSURE_OR_THROW( rShape, "LayerManager::implRemoveShape(): invalid Shape" ); + + const LayerShapeMap::iterator aShapeEntry( maAllShapes.find(rShape) ); + + if( aShapeEntry == maAllShapes.end() ) + return; + + const bool bShapeUpdateNotified = maUpdateShapes.erase( rShape ) != 0; + + // Enter shape area to the update area, but only if shape + // is visible and not in sprite mode (otherwise, updating + // the area doesn't do actual harm, but costs time) + // Actually, also add it if it was listed in + // maUpdateShapes (might have just gone invisible). + if( bShapeUpdateNotified || + (rShape->isVisible() && + !rShape->isBackgroundDetached()) ) + { + LayerSharedPtr pLayer = aShapeEntry->second.lock(); + if( pLayer ) + { + // store area early, once the shape is removed from + // the layers, it no longer has any view references + pLayer->addUpdateRange( rShape->getUpdateArea() ); + } + } + + rShape->clearAllViewLayers(); + maAllShapes.erase( aShapeEntry ); + + mbLayerAssociationDirty = true; + } + + ShapeSharedPtr LayerManager::lookupShape( const uno::Reference< drawing::XShape >& xShape ) const + { + ENSURE_OR_THROW( xShape.is(), "LayerManager::lookupShape(): invalid Shape" ); + + const XShapeHash::const_iterator aIter( maXShapeHash.find( xShape )); + if( aIter == maXShapeHash.end() ) + return ShapeSharedPtr(); // not found + + // found, return data part of entry pair. + return aIter->second; + } + + AttributableShapeSharedPtr LayerManager::getSubsetShape( const AttributableShapeSharedPtr& rOrigShape, + const DocTreeNode& rTreeNode ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + + AttributableShapeSharedPtr pSubset; + + // shape already added? + if( rOrigShape->createSubset( pSubset, + rTreeNode ) ) + { + OSL_ENSURE( pSubset, "LayerManager::getSubsetShape(): failed to create subset" ); + + // don't add to shape hash, we're dupes to the + // original XShape anyway - all subset shapes return + // the same XShape as the original one. + + // add shape to corresponding layer + implAddShape( pSubset ); + + // update original shape, it now shows less content + // (the subset is removed from its displayed + // output). Subset shape is updated within + // implAddShape(). + if( rOrigShape->isVisible() ) + notifyShapeUpdate( rOrigShape ); + } + + return pSubset; + } + + void LayerManager::revokeSubset( const AttributableShapeSharedPtr& rOrigShape, + const AttributableShapeSharedPtr& rSubsetShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + + if( rOrigShape->revokeSubset( rSubsetShape ) ) + { + OSL_ASSERT( maAllShapes.find(rSubsetShape) != maAllShapes.end() ); + + implRemoveShape( rSubsetShape ); + + // update original shape, it now shows more content + // (the subset is added back to its displayed output) + if( rOrigShape->isVisible() ) + notifyShapeUpdate( rOrigShape ); + } + } + + void LayerManager::enterAnimationMode( const AnimatableShapeSharedPtr& rShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + ENSURE_OR_THROW( rShape, "LayerManager::enterAnimationMode(): invalid Shape" ); + + const bool bPrevAnimState( rShape->isBackgroundDetached() ); + + rShape->enterAnimationMode(); + + // if this call _really_ enabled the animation mode at + // rShape, insert it to our enter animation queue, to + // perform the necessary layer reorg lazily on + // LayerManager::update()/render(). + if( bPrevAnimState != rShape->isBackgroundDetached() ) + { + ++mnActiveSprites; + mbLayerAssociationDirty = true; + + // area needs update (shape is removed from normal + // slide, and now rendered as an autonomous + // sprite). store in update set + if( rShape->isVisible() ) + addUpdateArea( rShape ); + } + + // TODO(P1): this can lead to potential wasted effort, if + // a shape gets toggled animated/unanimated a few times + // between two frames, returning to the original state. + } + + void LayerManager::leaveAnimationMode( const AnimatableShapeSharedPtr& rShape ) + { + ENSURE_OR_THROW( !maLayers.empty(), "LayerManager::leaveAnimationMode(): no layers" ); + ENSURE_OR_THROW( rShape, "LayerManager::leaveAnimationMode(): invalid Shape" ); + + const bool bPrevAnimState( rShape->isBackgroundDetached() ); + + rShape->leaveAnimationMode(); + + // if this call _really_ ended the animation mode at + // rShape, insert it to our leave animation queue, to + // perform the necessary layer reorg lazily on + // LayerManager::update()/render(). + if( bPrevAnimState != rShape->isBackgroundDetached() ) + { + --mnActiveSprites; + mbLayerAssociationDirty = true; + + // shape needs update, no previous rendering, fast + // update possible. + if( rShape->isVisible() ) + notifyShapeUpdate( rShape ); + } + + // TODO(P1): this can lead to potential wasted effort, if + // a shape gets toggled animated/unanimated a few times + // between two frames, returning to the original state. + } + + void LayerManager::notifyShapeUpdate( const ShapeSharedPtr& rShape ) + { + if( !mbActive || mrViews.empty() ) + return; + + // hidden sprite-shape needs render() call still, to hide sprite + if( rShape->isVisible() || rShape->isBackgroundDetached() ) + maUpdateShapes.insert( rShape ); + else + addUpdateArea( rShape ); + } + + bool LayerManager::isUpdatePending() const + { + if( !mbActive ) + return false; + + if( mbLayerAssociationDirty || !maUpdateShapes.empty() ) + return true; + + const LayerVector::const_iterator aEnd( maLayers.end() ); + if( std::find_if( maLayers.begin(), + aEnd, + boost::mem_fn(&Layer::isUpdatePending)) != aEnd ) + return true; + + return false; + } + + bool LayerManager::updateSprites() + { + bool bRet(true); + + // send update() calls to every shape in the + // maUpdateShapes set, which is _animated_ (i.e. a + // sprite). + const ShapeUpdateSet::const_iterator aEnd=maUpdateShapes.end(); + ShapeUpdateSet::const_iterator aCurrShape=maUpdateShapes.begin(); + while( aCurrShape != aEnd ) + { + if( (*aCurrShape)->isBackgroundDetached() ) + { + // can update shape directly, without + // affecting layer content (shape is + // currently displayed in a sprite) + if( !(*aCurrShape)->update() ) + bRet = false; // delay error exit + } + else + { + // TODO(P2): addUpdateArea() involves log(n) + // search for shape layer. Have a frequent + // shape/layer association cache, or ptr back to + // layer at the shape? + + // cannot update shape directly, it's not + // animated and update() calls will prolly + // overwrite other page content. + addUpdateArea( *aCurrShape ); + } + + ++aCurrShape; + } + + maUpdateShapes.clear(); + + return bRet; + } + + bool LayerManager::update() + { + bool bRet = true; + + if( !mbActive ) + return bRet; + + // going to render - better flush any pending layer reorg + // now + updateShapeLayers(false); + + // all sprites + bRet = updateSprites(); + + // any non-sprite update areas left? + if( std::find_if( maLayers.begin(), + maLayers.end(), + boost::mem_fn( &Layer::isUpdatePending )) == maLayers.end() ) + return bRet; // nope, done. + + // update each shape on each layer, that has + // isUpdatePending() + bool bIsCurrLayerUpdating(false); + Layer::EndUpdater aEndUpdater; + LayerSharedPtr pCurrLayer; + LayerShapeMap::const_iterator aIter( maAllShapes.begin() ); + const LayerShapeMap::const_iterator aEnd ( maAllShapes.end() ); + while( aIter != aEnd ) + { + LayerSharedPtr pLayer = aIter->second.lock(); + if( pLayer != pCurrLayer ) + { + pCurrLayer = pLayer; + bIsCurrLayerUpdating = pCurrLayer->isUpdatePending(); + + if( bIsCurrLayerUpdating ) + aEndUpdater = pCurrLayer->beginUpdate(); + } + + if( bIsCurrLayerUpdating && + !aIter->first->isBackgroundDetached() && + pCurrLayer->isInsideUpdateArea(aIter->first) ) + { + if( !aIter->first->render() ) + bRet = false; + } + + ++aIter; + } + + return bRet; + } + + namespace + { + /** Little wrapper around a Canvas, to render one-shot + into a canvas + */ + class DummyLayer : public ViewLayer + { + public: + explicit DummyLayer( const ::cppcanvas::CanvasSharedPtr& rCanvas ) : + mpCanvas( rCanvas ) + { + } + + virtual bool isOnView(boost::shared_ptr<View> const& /*rView*/) const + { + return true; // visible on all views + } + + virtual ::cppcanvas::CanvasSharedPtr getCanvas() const + { + return mpCanvas; + } + + virtual void clear() const + { + // NOOP + } + + virtual void clearAll() const + { + // NOOP + } + + virtual ::cppcanvas::CustomSpriteSharedPtr createSprite( const ::basegfx::B2DSize& /*rSpriteSizePixel*/, + double /*nSpritePrio*/ ) const + { + ENSURE_OR_THROW( false, + "DummyLayer::createSprite(): This method is not supposed to be called!" ); + return ::cppcanvas::CustomSpriteSharedPtr(); + } + + virtual void setPriority( const basegfx::B1DRange& /*rRange*/ ) + { + OSL_ENSURE( false, + "BitmapView::setPriority(): This method is not supposed to be called!" ); + } + + virtual ::basegfx::B2DHomMatrix getTransformation() const + { + return mpCanvas->getTransformation(); + } + + virtual ::basegfx::B2DHomMatrix getSpriteTransformation() const + { + OSL_ENSURE( false, + "BitmapView::getSpriteTransformation(): This method is not supposed to be called!" ); + return ::basegfx::B2DHomMatrix(); + } + + virtual void setClip( const ::basegfx::B2DPolyPolygon& /*rClip*/ ) + { + OSL_ENSURE( false, + "BitmapView::setClip(): This method is not supposed to be called!" ); + } + + virtual bool resize( const ::basegfx::B2DRange& /*rArea*/ ) + { + OSL_ENSURE( false, + "BitmapView::resize(): This method is not supposed to be called!" ); + return false; + } + + private: + ::cppcanvas::CanvasSharedPtr mpCanvas; + }; + } + + bool LayerManager::renderTo( const ::cppcanvas::CanvasSharedPtr& rTargetCanvas ) const + { + bool bRet( true ); + ViewLayerSharedPtr pTmpLayer( new DummyLayer( rTargetCanvas ) ); + + LayerShapeMap::const_iterator aIter( maAllShapes.begin() ); + const LayerShapeMap::const_iterator aEnd ( maAllShapes.end() ); + while( aIter != aEnd ) + { + try + { + // forward to all shape's addViewLayer method (which + // we request to render the Shape on the new + // ViewLayer. Since we add the shapes in the + // maShapeSet order (which is also the render order), + // this is equivalent to a subsequent render() call) + aIter->first->addViewLayer( pTmpLayer, + true ); + + // and remove again, this is only temporary + aIter->first->removeViewLayer( pTmpLayer ); + } + catch( uno::Exception& ) + { + // TODO(E1): Might be superfluous. Nowadays, + // addViewLayer swallows all errors, anyway. + OSL_ENSURE( false, + rtl::OUStringToOString( + comphelper::anyToString( cppu::getCaughtException() ), + RTL_TEXTENCODING_UTF8 ).getStr() ); + + // at least one shape could not be rendered + bRet = false; + } + + ++aIter; + } + + return bRet; + } + + void LayerManager::addUpdateArea( ShapeSharedPtr const& rShape ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + ENSURE_OR_THROW( rShape, "LayerManager::addUpdateArea(): invalid Shape" ); + + const LayerShapeMap::const_iterator aShapeEntry( maAllShapes.find(rShape) ); + + if( aShapeEntry == maAllShapes.end() ) + return; + + LayerSharedPtr pLayer = aShapeEntry->second.lock(); + if( pLayer ) + pLayer->addUpdateRange( rShape->getUpdateArea() ); + } + + void LayerManager::commitLayerChanges( std::size_t nCurrLayerIndex, + LayerShapeMap::const_iterator aFirstLayerShape, + LayerShapeMap::const_iterator aEndLayerShapes ) + { + const bool bLayerExists( maLayers.size() > nCurrLayerIndex ); + if( bLayerExists ) + { + const LayerSharedPtr& rLayer( maLayers.at(nCurrLayerIndex) ); + const bool bLayerResized( rLayer->commitBounds() ); + rLayer->setPriority( basegfx::B1DRange(nCurrLayerIndex, + nCurrLayerIndex+1) ); + + if( bLayerResized ) + { + // need to re-render whole layer - start from + // clean state + rLayer->clearContent(); + + // render and remove from update set + while( aFirstLayerShape != aEndLayerShapes ) + { + maUpdateShapes.erase(aFirstLayerShape->first); + aFirstLayerShape->first->render(); + ++aFirstLayerShape; + } + } + } + } + + LayerSharedPtr LayerManager::createForegroundLayer() const + { + OSL_ASSERT( mbActive ); + + LayerSharedPtr pLayer( Layer::createLayer( + maPageBounds )); + + // create ViewLayers for all registered views, and add to + // newly created layer. + ::std::for_each( mrViews.begin(), + mrViews.end(), + boost::bind( &Layer::addView, + boost::cref(pLayer), + _1 )); + + return pLayer; + } + + void LayerManager::updateShapeLayers( bool bBackgroundLayerPainted ) + { + OSL_ASSERT( !maLayers.empty() ); // always at least background layer + OSL_ASSERT( mbActive ); + + // do we need to process shapes? + if( !mbLayerAssociationDirty ) + return; + + if( mbDisableAnimationZOrder ) + { + // layer setup happened elsewhere, is only bg layer + // anyway. + mbLayerAssociationDirty = false; + return; + } + + // scan through maAllShapes, and determine shape animation + // discontinuities: when a shape that has + // isBackgroundDetached() return false follows a shape + // with isBackgroundDetached() true, the former and all + // following ones must be moved into an own layer. + + // to avoid tons of temporaries, create weak_ptr to Layers + // beforehand + std::vector< LayerWeakPtr > aWeakLayers(maLayers.size()); + std::copy(maLayers.begin(),maLayers.end(),aWeakLayers.begin()); + + std::size_t nCurrLayerIndex(0); + bool bIsBackgroundLayer(true); + bool bLastWasBackgroundDetached(false); // last shape sprite state + LayerShapeMap::iterator aCurrShapeEntry( maAllShapes.begin() ); + LayerShapeMap::iterator aCurrLayerFirstShapeEntry( maAllShapes.begin() ); + const LayerShapeMap::iterator aEndShapeEntry ( maAllShapes.end() ); + ShapeUpdateSet aUpdatedShapes; // shapes that need update + while( aCurrShapeEntry != aEndShapeEntry ) + { + const ShapeSharedPtr pCurrShape( aCurrShapeEntry->first ); + const bool bThisIsBackgroundDetached( + pCurrShape->isBackgroundDetached() ); + + if( bLastWasBackgroundDetached == true && + bThisIsBackgroundDetached == false ) + { + // discontinuity found - current shape needs to + // get into a new layer + // -------------------------------------------- + + // commit changes to previous layer + commitLayerChanges(nCurrLayerIndex, + aCurrLayerFirstShapeEntry, + aCurrShapeEntry); + aCurrLayerFirstShapeEntry=aCurrShapeEntry; + ++nCurrLayerIndex; + bIsBackgroundLayer = false; + + if( aWeakLayers.size() <= nCurrLayerIndex || + aWeakLayers.at(nCurrLayerIndex) != aCurrShapeEntry->second ) + { + // no more layers left, or shape was not + // member of this layer - create a new one + maLayers.insert( maLayers.begin()+nCurrLayerIndex, + createForegroundLayer() ); + aWeakLayers.insert( aWeakLayers.begin()+nCurrLayerIndex, + maLayers[nCurrLayerIndex] ); + } + } + + OSL_ASSERT( maLayers.size() == aWeakLayers.size() ); + + // note: using indices here, since vector::insert + // above invalidates iterators + LayerSharedPtr& rCurrLayer( maLayers.at(nCurrLayerIndex) ); + LayerWeakPtr& rCurrWeakLayer( aWeakLayers.at(nCurrLayerIndex) ); + if( rCurrWeakLayer != aCurrShapeEntry->second ) + { + // mismatch: shape is not contained in current + // layer - move shape to that layer, then. + maLayers.at(nCurrLayerIndex)->setShapeViews( + pCurrShape ); + + // layer got new shape(s), need full repaint, if + // non-sprite shape + if( !bThisIsBackgroundDetached && pCurrShape->isVisible() ) + { + LayerSharedPtr pOldLayer( aCurrShapeEntry->second.lock() ); + if( pOldLayer ) + { + // old layer still valid? then we need to + // repaint former shape area + pOldLayer->addUpdateRange( + pCurrShape->getUpdateArea() ); + } + + // render on new layer (only if not + // explicitely disabled) + if( !(bBackgroundLayerPainted && bIsBackgroundLayer) ) + maUpdateShapes.insert( pCurrShape ); + } + + aCurrShapeEntry->second = rCurrWeakLayer; + } + + // update layerbounds regardless of the fact that the + // shape might be contained in said layer + // already. updateBounds() is dumb and needs to + // collect all shape bounds. + // of course, no need to expand layer bounds for + // shapes that reside in sprites themselves. + if( !bThisIsBackgroundDetached && !bIsBackgroundLayer ) + rCurrLayer->updateBounds( pCurrShape ); + + bLastWasBackgroundDetached = bThisIsBackgroundDetached; + ++aCurrShapeEntry; + } + + // commit very last layer data + commitLayerChanges(nCurrLayerIndex, + aCurrLayerFirstShapeEntry, + aCurrShapeEntry); + + // any layers left? Bin them! + if( maLayers.size() > nCurrLayerIndex+1 ) + maLayers.erase(maLayers.begin()+nCurrLayerIndex+1, + maLayers.end()); + + mbLayerAssociationDirty = false; + } + } +} |