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Diffstat (limited to 'canvas/source/tools/surface.hxx')
| -rw-r--r-- | canvas/source/tools/surface.hxx | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/canvas/source/tools/surface.hxx b/canvas/source/tools/surface.hxx new file mode 100644 index 000000000000..9acda579803a --- /dev/null +++ b/canvas/source/tools/surface.hxx @@ -0,0 +1,162 @@ +/************************************************************************* + * + * 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_CANVAS_SURFACE_HXX +#define INCLUDED_CANVAS_SURFACE_HXX + +#include <basegfx/point/b2ipoint.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/vector/b2isize.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <canvas/rendering/irendermodule.hxx> +#include <canvas/rendering/icolorbuffer.hxx> +#include <canvas/rendering/isurface.hxx> + +#include "surfacerect.hxx" +#include "pagemanager.hxx" + +namespace canvas +{ + ////////////////////////////////////////////////////////////////////////////////// + // Surface + ////////////////////////////////////////////////////////////////////////////////// + + /** surfaces denote occupied areas withing pages. + + pages encapsulate the hardware buffers that + contain image data which can be used for texturing. + surfaces are areas within those pages. + */ + class Surface + { + public: + + Surface( const PageManagerSharedPtr& rPageManager, + const IColorBufferSharedPtr& rColorBuffer, + const ::basegfx::B2IPoint& rPos, + const ::basegfx::B2ISize& rSize ); + ~Surface(); + + void setColorBufferDirty(); + + /** Render the surface content to screen. + + @param fAlpha + Overall alpha for content + + @param rPos + Output position + + @param rTransform + Output transformation (does not affect output position) + */ + bool draw( double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DHomMatrix& rTransform ); + + /** Render the surface content to screen. + + @param fAlpha + Overall alpha for content + + @param rPos + Output position + + @param rArea + Subset of the surface to render. Coordinate system are + surface area pixel, given area will be clipped to the + surface bounds. + + @param rTransform + Output transformation (does not affect output position) + */ + bool drawRectangularArea( + double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DRange& rArea, + const ::basegfx::B2DHomMatrix& rTransform ); + + /** Render the surface content to screen. + + @param fAlpha + Overall alpha for content + + @param rPos + Output position + + @param rClipPoly + Clip polygon for the surface. The clip polygon is also + subject to the output transformation. + + @param rTransform + Output transformation (does not affect output position) + */ + bool drawWithClip( double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DPolygon& rClipPoly, + const ::basegfx::B2DHomMatrix& rTransform ); + + // private attributes + private: + IColorBufferSharedPtr mpColorBuffer; + + // invoking any of the above defined 'draw' methods + // will forward primitive commands to the rendermodule. + PageManagerSharedPtr mpPageManager; + + FragmentSharedPtr mpFragment; + + // the offset of this surface with regard to the source + // image. if the source image had to be tiled into multiple + // surfaces, this offset denotes the relative pixel distance + // from the source image's upper, left corner + ::basegfx::B2IPoint maSourceOffset; + + // the size in pixels of this surface. please note that + // this size is likely to be smaller than the size of + // the colorbuffer we're associated with since we + // maybe represent only a part of it. + ::basegfx::B2ISize maSize; + + bool mbIsDirty; + + // private methods + private: + bool refresh( canvas::IColorBuffer& rBuffer ) const; + void prepareRendering(); + + basegfx::B2DRectangle getUVCoords() const; + basegfx::B2DRectangle getUVCoords( const ::basegfx::B2IPoint& rPos, + const ::basegfx::B2ISize& rSize ) const; + }; + + typedef ::boost::shared_ptr< Surface > SurfaceSharedPtr; +} + +#endif |