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Diffstat (limited to 'canvas/source/tools/page.hxx')
| -rw-r--r-- | canvas/source/tools/page.hxx | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/canvas/source/tools/page.hxx b/canvas/source/tools/page.hxx new file mode 100644 index 000000000000..aa0358851b3d --- /dev/null +++ b/canvas/source/tools/page.hxx @@ -0,0 +1,175 @@ +/************************************************************************* + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: page.hxx,v $ + * + * $Revision: 1.2 $ + * + * last change: $Author: kz $ $Date: 2005-11-02 12:54:04 $ + * + * The Contents of this file are made available subject to + * the terms of GNU Lesser General Public License Version 2.1. + * + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2005 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ************************************************************************/ + +#ifndef INCLUDED_CANVAS_PAGE_HXX +#define INCLUDED_CANVAS_PAGE_HXX + +#ifndef _BGFX_VECTOR_B2ISIZE_HXX +#include <basegfx/vector/b2isize.hxx> +#endif +#ifndef _BGFX_RANGE_B2IRECTANGLE_HXX +#include <basegfx/range/b2irectangle.hxx> +#endif +#ifndef INCLUDED_CANVAS_ICOLORBUFFER_HXX +#include <canvas/rendering/icolorbuffer.hxx> +#endif +#ifndef INCLUDED_CANVAS_IRENDERMODULE_HXX +#include <canvas/rendering/irendermodule.hxx> +#endif +#ifndef INCLUDED_CANVAS_ISURFACE_HXX +#include <canvas/rendering/isurface.hxx> +#endif + +#include <list> +#include <vector> +#include <boost/shared_ptr.hpp> +#include "surfacerect.hxx" + +namespace canvas +{ + class PageFragment; + + typedef ::boost::shared_ptr< PageFragment > FragmentSharedPtr; + + /** One page of IRenderModule-provided texture space + */ + class Page + { + public: + Page( const IRenderModuleSharedPtr& rRenderModule ); + + FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize ); + bool nakedFragment( const FragmentSharedPtr& pFragment ); + void free( const FragmentSharedPtr& pFragment ); + const ISurfaceSharedPtr& getSurface() const { return mpSurface; } + bool isValid() const; + void validate(); + + private: + typedef std::list<FragmentSharedPtr> FragmentContainer_t; + + IRenderModuleSharedPtr mpRenderModule; + ISurfaceSharedPtr mpSurface; + FragmentContainer_t mpFragments; + + bool insert( SurfaceRect& r ); + bool isValidLocation( const SurfaceRect& r ) const; + }; + + typedef ::boost::shared_ptr< Page > PageSharedPtr; + + + /** A part of a page, which gets allocated to a surface + */ + class PageFragment + { + public: + PageFragment( const SurfaceRect& r, + Page* pPage ) : + mpPage(pPage), + maRect(r), + mpBuffer(), + maSourceOffset() + { + } + + /// Creates a 'naked' fragment. + PageFragment( const ::basegfx::B2ISize& rSize ) : + mpPage(NULL), + maRect(rSize), + mpBuffer(), + maSourceOffset() + { + } + + bool isNaked() const { return (mpPage == NULL); } + const SurfaceRect& getRect() const { return maRect; } + const ::basegfx::B2IPoint& getPos() const { return maRect.maPos; } + const ::basegfx::B2ISize& getSize() const { return maRect.maSize; } + void setColorBuffer( const IColorBufferSharedPtr& pColorBuffer ) { mpBuffer=pColorBuffer; } + void setSourceOffset( const ::basegfx::B2IPoint& rOffset ) { maSourceOffset=rOffset; } + void setPage( Page* pPage ) { mpPage=pPage; } + + void free( const FragmentSharedPtr& pFragment ) + { + if(mpPage) + mpPage->free(pFragment); + + mpPage=NULL; + } + + bool select( bool bRefresh ) + { + // request was made to select this fragment, + // but this fragment has not been located on any + // of the available pages, we need to hurry now. + if(!(mpPage)) + return false; + + ISurfaceSharedPtr pSurface(mpPage->getSurface()); + + // select this surface before wiping the contents + // since a specific implementation could trigger + // a rendering operation here... + if(!(pSurface->selectTexture())) + return false; + + // call refresh() if requested, otherwise we're up to date... + return bRefresh ? refresh() : true; + } + + bool refresh() + { + if(!(mpPage)) + return false; + + ISurfaceSharedPtr pSurface(mpPage->getSurface()); + + return pSurface->update( maRect.maPos, + ::basegfx::B2IRectangle( + maSourceOffset, + maSourceOffset + maRect.maSize ), + *mpBuffer ); + } + + private: + Page* mpPage; + SurfaceRect maRect; + IColorBufferSharedPtr mpBuffer; + ::basegfx::B2IPoint maSourceOffset; + }; +} + +#endif |