/* -*- 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 <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 <rendering/icolorbuffer.hxx>
#include "pagemanager.hxx"
namespace canvas
{
/** surfaces denote occupied areas within 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( PageManagerSharedPtr xPageManager,
std::shared_ptr<IColorBuffer> xColorBuffer,
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::B2DRectangle& 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 :
std::shared_ptr<IColorBuffer> 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 :
void prepareRendering();
basegfx::B2DRectangle getUVCoords() const ;
basegfx::B2DRectangle getUVCoords( const ::basegfx::B2IPoint& rPos,
const ::basegfx::B2ISize& rSize ) const ;
};
typedef std::shared_ptr< Surface > SurfaceSharedPtr;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=91 H=100 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
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