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/*************************************************************************
*
* 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
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