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Diffstat (limited to '')
-rw-r--r-- | canvas/source/tools/surfaceproxy.hxx | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/canvas/source/tools/surfaceproxy.hxx b/canvas/source/tools/surfaceproxy.hxx new file mode 100644 index 000000000..72841d754 --- /dev/null +++ b/canvas/source/tools/surfaceproxy.hxx @@ -0,0 +1,118 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <rendering/isurfaceproxy.hxx> +#include <rendering/icolorbuffer.hxx> + +#include "pagemanager.hxx" +#include "surface.hxx" + +namespace canvas +{ + /** Definition of the surface proxy class. + + Surface proxies are the connection between *one* source image + and *one or more* hardware surfaces (or textures). in a + logical structure surface proxies represent solely this + dependency plus some simple cache management. + */ + class SurfaceProxy : public ISurfaceProxy + { + public: + + SurfaceProxy( std::shared_ptr<canvas::IColorBuffer> xBuffer, + PageManagerSharedPtr xPageManager ); + + // ISurfaceProxy interface + virtual void setColorBufferDirty() override; + + /** 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) + */ + virtual bool draw( double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DHomMatrix& rTransform ) override; + + /** 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) + */ + virtual bool draw( double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DRange& rArea, + const ::basegfx::B2DHomMatrix& rTransform ) override; + + /** 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) + */ + virtual bool draw( double fAlpha, + const ::basegfx::B2DPoint& rPos, + const ::basegfx::B2DPolyPolygon& rClipPoly, + const ::basegfx::B2DHomMatrix& rTransform ) override; + + private: + PageManagerSharedPtr mpPageManager; + + // the pagemanager will distribute the image + // to one or more surfaces, this is why we + // need a list here. + std::vector<SurfaceSharedPtr> maSurfaceList; + + // pointer to the source of image data + // which always is stored in system memory, + // 32bit rgba and can have any size. + std::shared_ptr<canvas::IColorBuffer> mpBuffer; + }; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |