118 lines
4 KiB
C++
118 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <rendering/isurfaceproxy.hxx>
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#include <rendering/icolorbuffer.hxx>
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#include "pagemanager.hxx"
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#include "surface.hxx"
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namespace canvas
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{
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/** Definition of the surface proxy class.
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Surface proxies are the connection between *one* source image
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and *one or more* hardware surfaces (or textures). in a
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logical structure surface proxies represent solely this
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dependency plus some simple cache management.
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*/
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class SurfaceProxy : public ISurfaceProxy
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{
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public:
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SurfaceProxy( std::shared_ptr<canvas::IColorBuffer> xBuffer,
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PageManagerSharedPtr xPageManager );
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// ISurfaceProxy interface
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virtual void setColorBufferDirty() override;
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/** Render the surface content to screen.
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@param fAlpha
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Overall alpha for content
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@param rPos
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Output position
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@param rTransform
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Output transformation (does not affect output position)
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*/
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virtual bool draw( double fAlpha,
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const ::basegfx::B2DPoint& rPos,
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const ::basegfx::B2DHomMatrix& rTransform ) override;
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/** Render the surface content to screen.
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@param fAlpha
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Overall alpha for content
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@param rPos
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Output position
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@param rArea
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Subset of the surface to render. Coordinate system are
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surface area pixel, given area will be clipped to the
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surface bounds.
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@param rTransform
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Output transformation (does not affect output position)
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*/
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virtual bool draw( double fAlpha,
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const ::basegfx::B2DPoint& rPos,
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const ::basegfx::B2DRange& rArea,
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const ::basegfx::B2DHomMatrix& rTransform ) override;
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/** Render the surface content to screen.
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@param fAlpha
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Overall alpha for content
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@param rPos
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Output position
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@param rClipPoly
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Clip polygon for the surface. The clip polygon is also
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subject to the output transformation.
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@param rTransform
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Output transformation (does not affect output position)
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*/
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virtual bool draw( double fAlpha,
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const ::basegfx::B2DPoint& rPos,
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const ::basegfx::B2DPolyPolygon& rClipPoly,
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const ::basegfx::B2DHomMatrix& rTransform ) override;
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private:
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PageManagerSharedPtr mpPageManager;
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// the pagemanager will distribute the image
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// to one or more surfaces, this is why we
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// need a list here.
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std::vector<SurfaceSharedPtr> maSurfaceList;
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// pointer to the source of image data
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// which always is stored in system memory,
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// 32bit rgba and can have any size.
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std::shared_ptr<canvas::IColorBuffer> mpBuffer;
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};
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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