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INTEGRATION: CWS presentationengine01 (1.1.2); FILE ADDED

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2004/11/01 22:21:49 thb 1.1.2.2: #110496# Performance optimizations: added profiling traces
2004/10/12 14:12:43 thb 1.1.2.1: #i34997# Initial revision
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Rüdiger Timm
2004-11-26 19:57:31 +00:00
parent c376ce8bac
commit 348c291eba
1 changed files with 331 additions and 0 deletions
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cppcanvas/source/mtfrenderer/transparencygroupaction.cxx Normal file
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/*************************************************************************
*
* $RCSfile: transparencygroupaction.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: rt $ $Date: 2004-11-26 20:57:31 $
*
* 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 _SV_GEN_HXX
#include <tools/gen.hxx>
#endif
#include <canvas/debug.hxx>
#include <canvas/verbosetrace.hxx>
#include <transparencygroupaction.hxx>
#include <outdevstate.hxx>
#ifndef _RTL_LOGFILE_HXX_
#include <rtl/logfile.hxx>
#endif
#ifndef _DRAFTS_COM_SUN_STAR_RENDERING_XBITMAP_HPP__
#include <drafts/com/sun/star/rendering/XBitmap.hpp>
#endif
#ifndef INCLUDED_RTL_MATH_HXX
#include <rtl/math.hxx>
#endif
#ifndef _SV_BITMAPEX_HXX
#include <vcl/bitmapex.hxx>
#endif
#ifndef _VCL_CANVASTOOLS_HXX
#include <vcl/canvastools.hxx>
#endif
#ifndef _SV_SVAPP_HXX
#include <vcl/svapp.hxx>
#endif
#ifndef _SV_OUTDEV_HXX
#include <vcl/outdev.hxx>
#endif
#ifndef _SV_VIRDEV_HXX
#include <vcl/virdev.hxx>
#endif
#ifndef _SV_VIRDEV_HXX
#include <vcl/virdev.hxx>
#endif
#ifndef _SV_GDIMTF_HXX
#include <vcl/gdimtf.hxx>
#endif
#ifndef _SV_GRADIENT_HXX
#include <vcl/gradient.hxx>
#endif
#ifndef _CANVAS_CANVASTOOLS_HXX
#include <canvas/canvastools.hxx>
#endif
#ifndef _BGFX_NUMERIC_FTOOLS_HXX
#include <basegfx/numeric/ftools.hxx>
#endif
#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
#include <basegfx/matrix/b2dhommatrix.hxx>
#endif
#ifndef _BGFX_TUPLE_B2DTUPLE_HXX
#include <basegfx/tuple/b2dtuple.hxx>
#endif
#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
#include <basegfx/tools/canvastools.hxx>
#endif
#include <mtftools.hxx>
#include <cppcanvas/vclfactory.hxx>
using namespace ::com::sun::star;
using namespace ::drafts::com::sun::star;
namespace cppcanvas
{
namespace internal
{
// free support functions
// ======================
namespace
{
/** Setup transformation such that the next render call is
moved rPoint away, and scaled according to the ratio
given by src and dst size.
*/
void implSetupTransform( rendering::RenderState& rRenderState,
const Point& rDstPoint )
{
::basegfx::B2DHomMatrix aLocalTransformation;
aLocalTransformation.translate( rDstPoint.X(),
rDstPoint.Y() );
::canvas::tools::appendToRenderState( rRenderState,
aLocalTransformation );
}
}
TransparencyGroupAction::TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
const Renderer::Parameters& rParms,
const ::Point& rDstPoint,
const ::Size& rDstSize,
double nAlpha,
const CanvasSharedPtr& rCanvas,
const OutDevState& rState ) :
mpGroupMtf( rGroupMtf ),
mpAlphaGradient(),
maParms( rParms ),
maDstSize( rDstSize ),
mxBufferBitmap(),
maLastTransformation(),
mpCanvas( rCanvas ),
maState(),
mnAlpha( nAlpha )
{
tools::initRenderState(maState,rState);
implSetupTransform( maState, rDstPoint );
}
TransparencyGroupAction::TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
GradientAutoPtr& rAlphaGradient,
const Renderer::Parameters& rParms,
const ::Point& rDstPoint,
const ::Size& rDstSize,
const CanvasSharedPtr& rCanvas,
const OutDevState& rState ) :
mpGroupMtf( rGroupMtf ),
mpAlphaGradient( rAlphaGradient ),
maParms( rParms ),
maDstSize( rDstSize ),
mxBufferBitmap(),
maLastTransformation(),
mpCanvas( rCanvas ),
maState(),
mnAlpha( 1.0 )
{
tools::initRenderState(maState,rState);
implSetupTransform( maState, rDstPoint );
}
TransparencyGroupAction::~TransparencyGroupAction()
{
// outline, because of incomplete types in header
}
// TODO(P3): The whole float transparency handling is a mess,
// this should be refactored. What's more, the old idea of
// having only internal 'metaactions', and not the original
// GDIMetaFile now looks a lot less attractive. Try to move
// into the direction of having a direct GDIMetaFile2XCanvas
// renderer, and maybe a separate metafile XCanvas
// implementation.
bool TransparencyGroupAction::render( const ::basegfx::B2DHomMatrix& rTransformation ) const
{
RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::TransparencyGroupAction::render()" );
RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::TransparencyGroupAction: 0x%X", this );
// determine overall transformation matrix (render, view,
// and passed transformation)
::basegfx::B2DHomMatrix aTransform;
::canvas::tools::getRenderStateTransform( aTransform, maState );
aTransform = rTransformation * aTransform;
::basegfx::B2DHomMatrix aTotalTransform;
::canvas::tools::getViewStateTransform( aTotalTransform, mpCanvas->getViewState() );
aTotalTransform = aTotalTransform * aTransform;
// since pure translational changes to the transformation
// does not matter, remove them before comparing
aTotalTransform.set( 0, 2, 0.0 );
aTotalTransform.set( 1, 2, 0.0 );
// as soon as the total transformation changes, we've got
// to re-render the bitmap
if( aTotalTransform != maLastTransformation)
{
DBG_TESTSOLARMUTEX();
// determine total scaling factor of the
// transformation matrix - need to make the bitmap
// large enough
::basegfx::B2DTuple aScale;
::basegfx::B2DTuple aTranslate;
double nRotate;
double nShearX;
if( !aTotalTransform.decompose( aScale,
aTranslate,
nRotate,
nShearX ) )
{
OSL_ENSURE( false,
"TransparencyGroupAction::render(): non-decomposable transformation" );
return false;
}
::Size aSize( ::basegfx::fround( aScale.getX() * maDstSize.Width() ),
::basegfx::fround( aScale.getY() * maDstSize.Height() ) );
// render our content into an appropriately sized
// VirtualDevice with alpha channel
VirtualDevice aVDev(
*::Application::GetDefaultDevice(), 0, 0 );
aVDev.SetOutputSizePixel( aSize );
aVDev.SetMapMode();
::Point aEmptyPoint;
aVDev.DrawTransparent( *mpGroupMtf,
aEmptyPoint,
aSize,
*mpAlphaGradient );
// update buffered bitmap and transformation
BitmapSharedPtr aBmp( VCLFactory::getInstance().createBitmap(
mpCanvas,
aVDev.GetBitmapEx(
aEmptyPoint,
aSize ) ) );
mxBufferBitmap = aBmp->getUNOBitmap();
maLastTransformation = aTotalTransform;
}
// determine target transformation (we can't simply pass
// aTotalTransform as assembled above, since we must take
// the canvas' view state as is, it might contain clipping
// (which, in turn, is relative to the view
// transformation))
// given that aTotalTransform is the identity
// transformation, we could simply render our bitmap
// as-is. Now, since the mxBufferBitmap content already
// accounts for scale changes in the overall
// transformation, we must factor this out
// before. Generally, the transformation matrix should be
// structured like this:
// Translation*Rotation*Shear*Scale. Thus, to neutralize
// the contained scaling, we've got to right-multiply with
// the inverse.
::basegfx::B2ISize aBmpSize(
::basegfx::unotools::b2ISizeFromIntegerSize2D( mxBufferBitmap->getSize() ) );
::basegfx::B2DHomMatrix aScaleCorrection;
aScaleCorrection.scale( (double)maDstSize.Width() / aBmpSize.getX(),
(double)maDstSize.Height() / aBmpSize.getY() );
aTransform = aTransform * aScaleCorrection;
rendering::RenderState aLocalState( maState );
::canvas::tools::setRenderStateTransform(aLocalState, aTransform);
if( ::rtl::math::approxEqual(mnAlpha, 1.0) )
{
// no further alpha changes necessary -> draw directly
mpCanvas->getUNOCanvas()->drawBitmap( mxBufferBitmap,
mpCanvas->getViewState(),
aLocalState );
}
else
{
// add alpha modulation value to DeviceColor
aLocalState.DeviceColor.realloc(4);
aLocalState.DeviceColor[0] = 1.0;
aLocalState.DeviceColor[1] = 1.0;
aLocalState.DeviceColor[2] = 1.0;
aLocalState.DeviceColor[3] = mnAlpha;
mpCanvas->getUNOCanvas()->drawBitmapModulated( mxBufferBitmap,
mpCanvas->getViewState(),
aLocalState );
}
return true;
}
}
}