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|
/*************************************************************************
*
* $RCSfile: canvastools.cxx,v $
*
* $Revision: 1.6 $
*
* last change: $Author: obo $ $Date: 2005-04-18 09:09:20 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _COM_SUN_STAR_GEOMETRY_AFFINEMATRIX2D_HPP_
#include <com/sun/star/geometry/AffineMatrix2D.hpp>
#endif
#ifndef _COM_SUN_STAR_GEOMETRY_MATRIX2D_HPP_
#include <com/sun/star/geometry/Matrix2D.hpp>
#endif
#ifndef _COM_SUN_STAR_RENDERING_RENDERSTATE_HPP__
#include <com/sun/star/rendering/RenderState.hpp>
#endif
#ifndef _COM_SUN_STAR_RENDERING_VIEWSTATE_HPP__
#include <com/sun/star/rendering/ViewState.hpp>
#endif
#ifndef _COM_SUN_STAR_RENDERING_XCANVAS_HPP__
#include <com/sun/star/rendering/XCanvas.hpp>
#endif
#ifndef _COM_SUN_STAR_RENDERING_COMPOSITEOPERATION_HPP__
#include <com/sun/star/rendering/CompositeOperation.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_XPROPERTYSET_HPP_
#include <com/sun/star/beans/XPropertySet.hpp>
#endif
#ifndef _COM_SUN_STAR_LANG_XSERVICEINFO_HPP__
#include <com/sun/star/lang/XServiceInfo.hpp>
#endif
#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
#include <basegfx/matrix/b2dhommatrix.hxx>
#endif
#ifndef _BGFX_RANGE_B2DRANGE_HXX
#include <basegfx/range/b2drange.hxx>
#endif
#ifndef _BGFX_RANGE_B2DRECTANGLE_HXX
#include <basegfx/range/b2drectangle.hxx>
#endif
#ifndef _BGFX_POINT_B2DPOINT_HXX
#include <basegfx/point/b2dpoint.hxx>
#endif
#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
#include <basegfx/tools/canvastools.hxx>
#endif
#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
#include <basegfx/polygon/b2dpolygon.hxx>
#endif
#include <canvas/canvastools.hxx>
#include <limits>
#include <memory>
#include <algorithm>
#include <cstdio>
using namespace ::com::sun::star;
namespace canvas
{
namespace tools
{
// prototypes
uno::Sequence< uno::Any >& getVCLDeviceInfo( uno::Reference< rendering::XGraphicDevice > xDevice, uno::Sequence< uno::Any >& o_rxParams );
uno::Sequence< uno::Any >& getDXDeviceInfo( uno::Reference< rendering::XGraphicDevice > xDevice, uno::Sequence< uno::Any >& o_rxParams );
// ---------------------------------------------------------------------
geometry::RealSize2D createInfiniteSize2D()
{
return geometry::RealSize2D(
::std::numeric_limits<double>::infinity(),
::std::numeric_limits<double>::infinity() );
}
// ---------------------------------------------------------------------
rendering::RenderState& initRenderState( rendering::RenderState& renderState )
{
// setup identity transform
setIdentityAffineMatrix2D( renderState.AffineTransform );
renderState.Clip = uno::Reference< rendering::XPolyPolygon2D >();
renderState.DeviceColor = uno::Sequence< double >();
renderState.CompositeOperation = rendering::CompositeOperation::OVER;
return renderState;
}
rendering::ViewState& initViewState( rendering::ViewState& viewState )
{
// setup identity transform
setIdentityAffineMatrix2D( viewState.AffineTransform );
viewState.Clip = uno::Reference< rendering::XPolyPolygon2D >();
return viewState;
}
::basegfx::B2DHomMatrix& getViewStateTransform( ::basegfx::B2DHomMatrix& transform,
const rendering::ViewState& viewState )
{
return ::basegfx::unotools::homMatrixFromAffineMatrix( transform, viewState.AffineTransform );
}
rendering::ViewState& setViewStateTransform( rendering::ViewState& viewState,
const ::basegfx::B2DHomMatrix& transform )
{
::basegfx::unotools::affineMatrixFromHomMatrix( viewState.AffineTransform, transform );
return viewState;
}
::basegfx::B2DHomMatrix& getRenderStateTransform( ::basegfx::B2DHomMatrix& transform,
const rendering::RenderState& renderState )
{
return ::basegfx::unotools::homMatrixFromAffineMatrix( transform, renderState.AffineTransform );
}
rendering::RenderState& setRenderStateTransform( rendering::RenderState& renderState,
const ::basegfx::B2DHomMatrix& transform )
{
::basegfx::unotools::affineMatrixFromHomMatrix( renderState.AffineTransform, transform );
return renderState;
}
rendering::RenderState& appendToRenderState( rendering::RenderState& renderState,
const ::basegfx::B2DHomMatrix& rTransform )
{
::basegfx::B2DHomMatrix transform;
getRenderStateTransform( transform, renderState );
return setRenderStateTransform( renderState, transform * rTransform );
}
rendering::ViewState& appendToViewState( rendering::ViewState& viewState,
const ::basegfx::B2DHomMatrix& rTransform )
{
::basegfx::B2DHomMatrix transform;
getViewStateTransform( transform, viewState );
return setViewStateTransform( viewState, transform * rTransform );
}
rendering::RenderState& prependToRenderState( rendering::RenderState& renderState,
const ::basegfx::B2DHomMatrix& rTransform )
{
::basegfx::B2DHomMatrix transform;
getRenderStateTransform( transform, renderState );
return setRenderStateTransform( renderState, rTransform * transform );
}
rendering::ViewState& prependToViewState( rendering::ViewState& viewState,
const ::basegfx::B2DHomMatrix& rTransform )
{
::basegfx::B2DHomMatrix transform;
getViewStateTransform( transform, viewState );
return setViewStateTransform( viewState, rTransform * transform );
}
::basegfx::B2DHomMatrix& mergeViewAndRenderTransform( ::basegfx::B2DHomMatrix& combinedTransform,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState )
{
::basegfx::B2DHomMatrix viewTransform;
::basegfx::unotools::homMatrixFromAffineMatrix( combinedTransform, renderState.AffineTransform );
::basegfx::unotools::homMatrixFromAffineMatrix( viewTransform, viewState.AffineTransform );
// this statement performs combinedTransform = viewTransform * combinedTransform
combinedTransform *= viewTransform;
return combinedTransform;
}
rendering::ViewState& mergeViewAndRenderState( rendering::ViewState& resultViewState,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
const uno::Reference< rendering::XCanvas > xCanvas )
{
::basegfx::B2DHomMatrix aTmpMatrix;
geometry::AffineMatrix2D convertedMatrix;
resultViewState.Clip = NULL; // TODO(F2): intersect clippings
return setViewStateTransform(
resultViewState,
mergeViewAndRenderTransform( aTmpMatrix,
viewState,
renderState ) );
}
geometry::AffineMatrix2D& setIdentityAffineMatrix2D( geometry::AffineMatrix2D& matrix )
{
matrix.m00 = 1.0;
matrix.m01 = 0.0;
matrix.m02 = 0.0;
matrix.m10 = 0.0;
matrix.m11 = 1.0;
matrix.m12 = 0.0;
return matrix;
}
geometry::Matrix2D& setIdentityMatrix2D( geometry::Matrix2D& matrix )
{
matrix.m00 = 1.0;
matrix.m01 = 0.0;
matrix.m10 = 0.0;
matrix.m11 = 1.0;
return matrix;
}
void setDeviceColor( ::com::sun::star::rendering::RenderState& o_renderState,
const double& rColor0,
const double& rColor1,
const double& rColor2,
const double& rColor3 )
{
o_renderState.DeviceColor.realloc( 4 );
double* pColors = o_renderState.DeviceColor.getArray();
pColors[0] = rColor0;
pColors[1] = rColor1;
pColors[2] = rColor2;
pColors[3] = rColor3;
}
void getDeviceColor( double& o_rColor0,
double& o_rColor1,
double& o_rColor2,
double& o_rColor3,
const ::com::sun::star::rendering::RenderState& rRenderState )
{
o_rColor0 = rRenderState.DeviceColor[0];
o_rColor1 = rRenderState.DeviceColor[1];
o_rColor2 = rRenderState.DeviceColor[2];
o_rColor3 = rRenderState.DeviceColor.getLength() > 3 ?
rRenderState.DeviceColor[3] : 1.0;
}
bool operator==( const rendering::RenderState& renderState1,
const rendering::RenderState& renderState2 )
{
if( renderState1.Clip != renderState2.Clip )
return false;
if( renderState1.DeviceColor != renderState2.DeviceColor )
return false;
if( renderState1.CompositeOperation != renderState2.CompositeOperation )
return false;
::basegfx::B2DHomMatrix mat1, mat2;
getRenderStateTransform( mat1, renderState1 );
getRenderStateTransform( mat2, renderState2 );
if( mat1 != mat2 )
return false;
return true;
}
bool operator==( const rendering::ViewState& viewState1,
const rendering::ViewState& viewState2 )
{
if( viewState1.Clip != viewState2.Clip )
return false;
::basegfx::B2DHomMatrix mat1, mat2;
getViewStateTransform( mat1, viewState1 );
getViewStateTransform( mat2, viewState2 );
if( mat1 != mat2 )
return false;
return true;
}
// Create a corrected view transformation out of the give one,
// which ensures that the rectangle given by (0,0) and
// rSpriteSize is mapped with its left,top corner to (0,0)
// again. This is required to properly render sprite
// animations to buffer bitmaps.
::basegfx::B2DHomMatrix& calcRectToOriginTransform( ::basegfx::B2DHomMatrix& o_transform,
const ::basegfx::B2DRange& i_srcRect,
const ::basegfx::B2DHomMatrix& i_transformation )
{
// transform by given transformation
::basegfx::B2DRectangle aTransformedRect;
calcTransformedRectBounds( aTransformedRect,
i_srcRect,
i_transformation );
// now move resulting left,top point of bounds to (0,0)
::basegfx::B2DHomMatrix aCorrectedTransform;
aCorrectedTransform.translate( -aTransformedRect.getMinX(),
-aTransformedRect.getMinY() );
// prepend to original transformation
o_transform = aCorrectedTransform * i_transformation;
return o_transform;
}
::basegfx::B2DRange& calcTransformedRectBounds( ::basegfx::B2DRange& outRect,
const ::basegfx::B2DRange& inRect,
const ::basegfx::B2DHomMatrix& transformation )
{
outRect.reset();
// transform all four extremal points of the rectangle,
// take bounding rect of those.
// transform left-top point
outRect.expand( transformation * inRect.getMinimum() );
// transform bottom-right point
outRect.expand( transformation * inRect.getMaximum() );
::basegfx::B2DPoint aPoint;
// transform top-right point
aPoint.setX( inRect.getMaxX() );
aPoint.setY( inRect.getMinY() );
aPoint *= transformation;
outRect.expand( aPoint );
// transform bottom-left point
aPoint.setX( inRect.getMinX() );
aPoint.setY( inRect.getMaxY() );
aPoint *= transformation;
outRect.expand( aPoint );
// over and out.
return outRect;
}
::basegfx::B2DHomMatrix& calcRectToRectTransform( ::basegfx::B2DHomMatrix& o_transform,
const ::basegfx::B2DRange& destRect,
const ::basegfx::B2DRange& srcRect,
const ::basegfx::B2DHomMatrix& transformation )
{
// transform inputRect by transformation
::basegfx::B2DRectangle aTransformedRect;
calcTransformedRectBounds( aTransformedRect,
srcRect,
transformation );
// now move resulting left,top point of bounds to (0,0)
::basegfx::B2DHomMatrix aCorrectedTransform;
aCorrectedTransform.translate( -aTransformedRect.getMinX(),
-aTransformedRect.getMinY() );
// scale to match outRect
const double xDenom( aTransformedRect.getWidth() );
const double yDenom( aTransformedRect.getHeight() );
if( xDenom != 0.0 && yDenom != 0.0 )
aCorrectedTransform.scale( destRect.getWidth() / xDenom,
destRect.getHeight() / yDenom );
// TODO(E2): error handling
// translate to final position
aCorrectedTransform.translate( destRect.getMinX(),
destRect.getMinY() );
::basegfx::B2DHomMatrix transform( transformation );
o_transform = aCorrectedTransform * transform;
return o_transform;
}
uno::Sequence< uno::Any >& getDeviceInfo( const uno::Reference< rendering::XCanvas >& i_rxCanvas,
uno::Sequence< uno::Any >& o_rxParams )
{
o_rxParams.realloc( 0 );
if( i_rxCanvas.is() )
{
try
{
uno::Reference< rendering::XGraphicDevice > xDevice( i_rxCanvas->getDevice(),
uno::UNO_QUERY_THROW );
uno::Reference< lang::XServiceInfo > xServiceInfo( xDevice,
uno::UNO_QUERY_THROW );
uno::Reference< beans::XPropertySet > xPropSet( xDevice,
uno::UNO_QUERY_THROW );
o_rxParams.realloc( 2 );
o_rxParams[ 0 ] = uno::makeAny( xServiceInfo->getImplementationName() );
o_rxParams[ 1 ] = uno::makeAny( xPropSet->getPropertyValue(
::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("DeviceHandle") ) ) );
}
catch( uno::Exception& )
{
// ignore, but return empty sequence
}
}
return o_rxParams;
}
} // namespace tools
} // namespace canvas
|
