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Diffstat (limited to 'slideshow/source/engine/shapes/viewshape.hxx')
| -rw-r--r-- | slideshow/source/engine/shapes/viewshape.hxx | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/slideshow/source/engine/shapes/viewshape.hxx b/slideshow/source/engine/shapes/viewshape.hxx new file mode 100644 index 000000000000..2ab97a27ca98 --- /dev/null +++ b/slideshow/source/engine/shapes/viewshape.hxx @@ -0,0 +1,343 @@ +/* -*- 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. + * + ************************************************************************/ + +#ifndef INCLUDED_SLIDESHOW_VIEWSHAPE_HXX +#define INCLUDED_SLIDESHOW_VIEWSHAPE_HXX + +#include <cppcanvas/renderer.hxx> +#include <cppcanvas/bitmap.hxx> + +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> + +#include <boost/shared_ptr.hpp> +#include <boost/utility.hpp> + +#include "tools.hxx" +#include "shapeattributelayer.hxx" +#include "animatedsprite.hxx" +#include "viewlayer.hxx" +#include "doctreenode.hxx" + +#include <vector> + + +namespace slideshow +{ + namespace internal + { + /** This class is the viewable representation of a draw + document's XShape, associated to a specific View + + The class is able to render the associated XShape on + View implementations. + */ + class ViewShape : private boost::noncopyable + { + public: + /** Create a ViewShape for the given View + + @param rView + The associated View object. + */ + explicit ViewShape( const ViewLayerSharedPtr& rViewLayer ); + + /** Query the associated view layer of this shape + */ + ViewLayerSharedPtr getViewLayer() const; + + /** Query dimension of a safety border around the shape for AA + + If the view performs antialiasing, this method + calculates a safety border around the shape, in the + shape coordinate system, which is guaranteed to + include every pixel touched when rendering the shape. + */ + ::basegfx::B2DSize getAntialiasingBorder() const; + + + // animation methods + //------------------------------------------------------------------ + + /** Notify the ViewShape that an animation starts now + + This method enters animation mode on the associate + target view. The shape can be animated in parallel on + different views. + + @return whether the mode change finished successfully. + */ + bool enterAnimationMode(); + + /** Notify the ViewShape that it is no longer animated + + This methods ends animation mode on the associate + target view + */ + void leaveAnimationMode(); + + /** Query whether the ViewShape is currently animated + + This method checks whether the ViewShape is currently in + animation mode. + */ + bool isBackgroundDetached() const { return mbAnimationMode; } + + + // render methods + //------------------------------------------------------------------ + + enum UpdateFlags + { + NONE= 0, + TRANSFORMATION= 1, + CLIP= 2, + ALPHA= 4, + POSITION= 8, + CONTENT= 16, + FORCE= 32 + }; + + struct RenderArgs + { + /** Create render argument struct + + @param rOrigBounds + The initial shape bounds + + @param rUpdateBounds + The area covered by the shape + + @param rBounds + The current shape bounds + + @param rAttr + The current shape attribute set. Can be NULL, for + default attributes. Attention: stored as a reference, + thus, parameter object must stay valid! + + @param rSubsets + Vector of subset rendering ranges. Attention: + stored as a reference, thus, parameter object must + stay valid! + + @param nPrio + Shape priority + */ + RenderArgs( const ::basegfx::B2DRectangle& rOrigBounds, + const ::basegfx::B2DRectangle& rUpdateBounds, + const ::basegfx::B2DRectangle& rBounds, + const ::basegfx::B2DRectangle& rUnitBounds, + const ShapeAttributeLayerSharedPtr& rAttr, + const VectorOfDocTreeNodes& rSubsets, + double nPrio ) : + maOrigBounds( rOrigBounds ), + maUpdateBounds( rUpdateBounds ), + maBounds( rBounds ), + maUnitBounds( rUnitBounds ), + mrAttr( rAttr ), + mrSubsets( rSubsets ), + mnShapePriority( nPrio ) + { + } + + const ::basegfx::B2DRectangle maOrigBounds; + const ::basegfx::B2DRectangle maUpdateBounds; + const ::basegfx::B2DRectangle maBounds; + const ::basegfx::B2DRectangle maUnitBounds; + const ShapeAttributeLayerSharedPtr& mrAttr; + const VectorOfDocTreeNodes& mrSubsets; + const double mnShapePriority; + }; + + /** Update the ViewShape + + This method updates the ViewShape on the associated + view. If the shape is currently animated, the render + target is the sprite, otherwise the view's + canvas. This method does not render anything, if the + update flags are 0. + + @param rMtf + The metafile representation of the shape + + @param rArgs + Parameter structure, containing all necessary arguments + + @param nUpdateFlags + Bitmask of things to update. Use FORCE to force a repaint. + + @param bIsVisible + When false, the shape is fully invisible (and possibly + don't need to be painted) + + @return whether the rendering finished successfully. + */ + bool update( const GDIMetaFileSharedPtr& rMtf, + const RenderArgs& rArgs, + int nUpdateFlags, + bool bIsVisible ) const; + + /** Retrieve renderer for given canvas and metafile. + + If necessary, the renderer is created or updated for + the metafile and attribute layer. + + @return a renderer that renders to the given + destination canvas + */ + ::cppcanvas::RendererSharedPtr getRenderer( const ::cppcanvas::CanvasSharedPtr& rDestinationCanvas, + const GDIMetaFileSharedPtr& rMtf, + const ShapeAttributeLayerSharedPtr& rAttr ) const; + + + private: + struct RendererCacheEntry + { + RendererCacheEntry() : + mpDestinationCanvas(), + mpRenderer(), + mpMtf(), + mpLastBitmap(), + mpLastBitmapCanvas() + { + } + + ::cppcanvas::CanvasSharedPtr getDestinationCanvas() + { + return mpDestinationCanvas; + } + + ::cppcanvas::CanvasSharedPtr mpDestinationCanvas; + ::cppcanvas::RendererSharedPtr mpRenderer; + GDIMetaFileSharedPtr mpMtf; + ::cppcanvas::BitmapSharedPtr mpLastBitmap; + ::cppcanvas::BitmapCanvasSharedPtr mpLastBitmapCanvas; + }; + + typedef ::std::vector< RendererCacheEntry > RendererCacheVector; + + + /** Prefetch Renderer for given canvas + */ + bool prefetch( RendererCacheEntry& io_rCacheEntry, + const ::cppcanvas::CanvasSharedPtr& rDestinationCanvas, + const GDIMetaFileSharedPtr& rMtf, + const ShapeAttributeLayerSharedPtr& rAttr ) const; + + /** Draw with prefetched Renderer to stored canvas + + This method draws prefetched Renderer to its + associated canvas (which happens to be mpLastCanvas). + */ + bool draw( const ::cppcanvas::CanvasSharedPtr& rDestinationCanvas, + const GDIMetaFileSharedPtr& rMtf, + const ShapeAttributeLayerSharedPtr& rAttr, + const ::basegfx::B2DHomMatrix& rTransform, + const ::basegfx::B2DPolyPolygon* pClip, + const VectorOfDocTreeNodes& rSubsets ) const; + + /** Render shape to an active sprite + */ + bool renderSprite( const ViewLayerSharedPtr& rViewLayer, + const GDIMetaFileSharedPtr& rMtf, + const ::basegfx::B2DRectangle& rOrigBounds, + const ::basegfx::B2DRectangle& rBounds, + const ::basegfx::B2DRectangle& rUnitBounds, + int nUpdateFlags, + const ShapeAttributeLayerSharedPtr& pAttr, + const VectorOfDocTreeNodes& rSubsets, + double nPrio, + bool bIsVisible ) const; + + /** Render shape to given canvas + */ + bool render( const ::cppcanvas::CanvasSharedPtr& rDestinationCanvas, + const GDIMetaFileSharedPtr& rMtf, + const ::basegfx::B2DRectangle& rBounds, + const ::basegfx::B2DRectangle& rUpdateBounds, + int nUpdateFlags, + const ShapeAttributeLayerSharedPtr& pAttr, + const VectorOfDocTreeNodes& rSubsets, + bool bIsVisible ) const; + + /** Calc sprite size in pixel + + Converts user coordinate system to device pixel, and + adds antialiasing border. + + @param rUserSize + Size of the sprite in user coordinate system (doc coordinates) + */ + ::basegfx::B2DSize calcSpriteSizePixel( const ::basegfx::B2DSize& rUserSize ) const; + + enum{ MAX_RENDER_CACHE_ENTRIES=2 }; + + /** Retrieve a valid iterator to renderer cache entry + + This method ensures that an internal limit of + MAX_RENDER_CACHE_ENTRIES is not exceeded. + + @param rDestinationCanvas + Destination canvas to retrieve cache entry for + + @return a valid iterator to a renderer cache entry for + the given canvas. The entry might be + default-constructed (if newly added) + */ + RendererCacheVector::iterator getCacheEntry( const ::cppcanvas::CanvasSharedPtr& rDestinationCanvas ) const; + + void invalidateRenderer() const; + + /** The view layer this object is part of. + + Needed for sprite creation + */ + ViewLayerSharedPtr mpViewLayer; + + /// A set of cached mtf/canvas combinations + mutable RendererCacheVector maRenderers; + + /// The sprite object + mutable AnimatedSpriteSharedPtr mpSprite; + + /// If true, render() calls go to the sprite + mutable bool mbAnimationMode; + + /// If true, shape needs full repaint (and the sprite a setup, if any) + mutable bool mbForceUpdate; + }; + + typedef ::boost::shared_ptr< ViewShape > ViewShapeSharedPtr; + + } +} + +#endif /* INCLUDED_SLIDESHOW_VIEWSHAPE_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |