25caa140ae
2005/03/23 19:28:09 thb 1.3.2.2: #i38985# At least one of the reasons for the Solaris crash was requesting a zero-sized bitmap here. Now distinguishing between bitmap and output size (the former is rounded _up_ to the nearest integer) 2005/03/14 16:04:55 thb 1.3.2.1: #i35136# #i36914# #i41113# #i44100# #i40115# #i41839# #i44404# Merge from presfixes01 patches
587 lines
27 KiB
C++
587 lines
27 KiB
C++
/*************************************************************************
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*
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* $RCSfile: transparencygroupaction.cxx,v $
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*
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* $Revision: 1.4 $
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*
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* last change: $Author: rt $ $Date: 2005-03-30 08:32:26 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef _SV_GEN_HXX
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#include <tools/gen.hxx>
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#endif
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#include <canvas/debug.hxx>
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#include <canvas/verbosetrace.hxx>
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#include <transparencygroupaction.hxx>
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#include <outdevstate.hxx>
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#ifndef _RTL_LOGFILE_HXX_
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#include <rtl/logfile.hxx>
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#endif
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#ifndef _COM_SUN_STAR_RENDERING_XBITMAP_HPP__
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#include <com/sun/star/rendering/XBitmap.hpp>
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#endif
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#ifndef INCLUDED_RTL_MATH_HXX
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#include <rtl/math.hxx>
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#endif
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#ifndef _SV_METAACT_HXX
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#include <vcl/metaact.hxx>
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#endif
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#ifndef _SV_BITMAPEX_HXX
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#include <vcl/bitmapex.hxx>
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#endif
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#ifndef _VCL_CANVASTOOLS_HXX
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#include <vcl/canvastools.hxx>
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#endif
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#ifndef _SV_SVAPP_HXX
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#include <vcl/svapp.hxx>
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#endif
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#ifndef _SV_OUTDEV_HXX
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#include <vcl/outdev.hxx>
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#endif
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#ifndef _SV_VIRDEV_HXX
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#include <vcl/virdev.hxx>
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#endif
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#ifndef _SV_VIRDEV_HXX
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#include <vcl/virdev.hxx>
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#endif
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#ifndef _SV_GDIMTF_HXX
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#include <vcl/gdimtf.hxx>
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#endif
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#ifndef _SV_GRADIENT_HXX
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#include <vcl/gradient.hxx>
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#endif
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#ifndef _CANVAS_CANVASTOOLS_HXX
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#include <canvas/canvastools.hxx>
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#endif
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#ifndef _BGFX_NUMERIC_FTOOLS_HXX
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#include <basegfx/numeric/ftools.hxx>
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#endif
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#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#endif
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#ifndef _BGFX_TUPLE_B2DTUPLE_HXX
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#include <basegfx/tuple/b2dtuple.hxx>
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#endif
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#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
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#include <basegfx/tools/canvastools.hxx>
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#endif
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#include <boost/utility.hpp>
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#include <mtftools.hxx>
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#include <cppcanvas/vclfactory.hxx>
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using namespace ::com::sun::star;
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namespace cppcanvas
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{
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namespace internal
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{
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// free support functions
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// ======================
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namespace
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{
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class TransparencyGroupAction : public Action, private ::boost::noncopyable
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{
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public:
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/** Create new transparency group action.
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@param rGroupMtf
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Metafile that groups all actions to be rendered
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transparent
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@param rParms
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Render parameters
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@param rDstPoint
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Left, top edge of destination, in current state
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coordinate system
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@param rDstSize
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Size of the transparency group object, in current
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state coordinate system.
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@param nAlpha
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Alpha value, must be in the range [0,1]
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*/
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TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
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const Renderer::Parameters& rParms,
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const ::Point& rDstPoint,
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const ::Size& rDstSize,
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double nAlpha,
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const CanvasSharedPtr& rCanvas,
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const OutDevState& rState );
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/** Create new transparency group action.
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@param rGroupMtf
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Metafile that groups all actions to be rendered
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transparent.
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@param rAlphaGradient
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VCL gradient, to be rendered into the action's alpha
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channel.
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@param rParms
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Render parameters
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@param rDstPoint
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Left, top edge of destination, in current state
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coordinate system
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@param rDstSize
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Size of the transparency group object, in current
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state coordinate system.
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*/
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TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
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GradientAutoPtr& rAlphaGradient,
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const Renderer::Parameters& rParms,
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const ::Point& rDstPoint,
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const ::Size& rDstSize,
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const CanvasSharedPtr& rCanvas,
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const OutDevState& rState );
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virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const;
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virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation,
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const Subset& rSubset ) const;
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virtual sal_Int32 getActionCount() const;
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private:
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MtfAutoPtr mpGroupMtf;
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GradientAutoPtr mpAlphaGradient;
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const Renderer::Parameters maParms;
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const ::Size maDstSize;
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mutable uno::Reference< rendering::XBitmap > mxBufferBitmap; // contains last rendered version
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mutable ::basegfx::B2DHomMatrix maLastTransformation; // contains last active transformation
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mutable Subset maLastSubset; // contains last effective subset
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// transformation for
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// mxBufferBitmap content
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CanvasSharedPtr mpCanvas;
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rendering::RenderState maState;
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const double mnAlpha;
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};
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/** Setup transformation such that the next render call is
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moved rPoint away, and scaled according to the ratio
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given by src and dst size.
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*/
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void implSetupTransform( rendering::RenderState& rRenderState,
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const Point& rDstPoint )
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{
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::basegfx::B2DHomMatrix aLocalTransformation;
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aLocalTransformation.translate( rDstPoint.X(),
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rDstPoint.Y() );
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::canvas::tools::appendToRenderState( rRenderState,
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aLocalTransformation );
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}
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TransparencyGroupAction::TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
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const Renderer::Parameters& rParms,
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const ::Point& rDstPoint,
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const ::Size& rDstSize,
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double nAlpha,
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const CanvasSharedPtr& rCanvas,
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const OutDevState& rState ) :
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mpGroupMtf( rGroupMtf ),
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mpAlphaGradient(),
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maParms( rParms ),
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maDstSize( rDstSize ),
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mxBufferBitmap(),
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maLastTransformation(),
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mpCanvas( rCanvas ),
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maState(),
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mnAlpha( nAlpha )
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{
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tools::initRenderState(maState,rState);
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implSetupTransform( maState, rDstPoint );
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maLastSubset.mnSubsetBegin = 0;
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maLastSubset.mnSubsetEnd = -1;
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}
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TransparencyGroupAction::TransparencyGroupAction( MtfAutoPtr& rGroupMtf,
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GradientAutoPtr& rAlphaGradient,
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const Renderer::Parameters& rParms,
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const ::Point& rDstPoint,
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const ::Size& rDstSize,
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const CanvasSharedPtr& rCanvas,
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const OutDevState& rState ) :
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mpGroupMtf( rGroupMtf ),
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mpAlphaGradient( rAlphaGradient ),
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maParms( rParms ),
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maDstSize( rDstSize ),
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mxBufferBitmap(),
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maLastTransformation(),
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mpCanvas( rCanvas ),
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maState(),
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mnAlpha( 1.0 )
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{
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tools::initRenderState(maState,rState);
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implSetupTransform( maState, rDstPoint );
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maLastSubset.mnSubsetBegin = 0;
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maLastSubset.mnSubsetEnd = -1;
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}
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// TODO(P3): The whole float transparency handling is a mess,
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// this should be refactored. What's more, the old idea of
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// having only internal 'metaactions', and not the original
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// GDIMetaFile now looks a lot less attractive. Try to move
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// into the direction of having a direct GDIMetaFile2XCanvas
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// renderer, and maybe a separate metafile XCanvas
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// implementation.
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bool TransparencyGroupAction::render( const ::basegfx::B2DHomMatrix& rTransformation,
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const Subset& rSubset ) const
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{
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RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::TransparencyGroupAction::render()" );
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RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::TransparencyGroupAction: 0x%X", this );
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// determine overall transformation matrix (render, view,
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// and passed transformation)
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::basegfx::B2DHomMatrix aTransform;
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::canvas::tools::getRenderStateTransform( aTransform, maState );
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aTransform = rTransformation * aTransform;
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::basegfx::B2DHomMatrix aTotalTransform;
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::canvas::tools::getViewStateTransform( aTotalTransform, mpCanvas->getViewState() );
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aTotalTransform = aTotalTransform * aTransform;
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// since pure translational changes to the transformation
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// does not matter, remove them before comparing
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aTotalTransform.set( 0, 2, 0.0 );
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aTotalTransform.set( 1, 2, 0.0 );
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// as soon as the total transformation changes, we've got
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// to re-render the bitmap
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if( aTotalTransform != maLastTransformation ||
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rSubset.mnSubsetBegin != maLastSubset.mnSubsetBegin ||
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rSubset.mnSubsetEnd != maLastSubset.mnSubsetEnd )
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{
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DBG_TESTSOLARMUTEX();
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// determine total scaling factor of the
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// transformation matrix - need to make the bitmap
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// large enough
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::basegfx::B2DTuple aScale;
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::basegfx::B2DTuple aTranslate;
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double nRotate;
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double nShearX;
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if( !aTotalTransform.decompose( aScale,
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aTranslate,
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nRotate,
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nShearX ) )
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{
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OSL_ENSURE( false,
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"TransparencyGroupAction::render(): non-decomposable transformation" );
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return false;
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}
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// output size of metafile
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::Size aOutputSizePixel( ::basegfx::fround( aScale.getX() * maDstSize.Width() ),
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::basegfx::fround( aScale.getY() * maDstSize.Height() ) );
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// pixel size of cache bitmap: round up to nearest int
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::Size aBitmapSizePixel( static_cast<sal_Int32>( aScale.getX() * maDstSize.Width() )+1,
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static_cast<sal_Int32>( aScale.getY() * maDstSize.Height() )+1 );
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::Point aEmptyPoint;
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// render our content into an appropriately sized
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// VirtualDevice with alpha channel
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VirtualDevice aVDev(
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*::Application::GetDefaultDevice(), 0, 0 );
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aVDev.SetOutputSizePixel( aBitmapSizePixel );
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aVDev.SetMapMode();
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if( rSubset.mnSubsetBegin != 0 ||
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rSubset.mnSubsetEnd != -1 )
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{
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// true subset - extract referenced
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// metaactions from mpGroupMtf
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GDIMetaFile aMtf;
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MetaAction* pCurrAct;
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int nCurrActionIndex;
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// extract subset actions
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for( nCurrActionIndex=0,
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pCurrAct=mpGroupMtf->FirstAction();
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pCurrAct;
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++nCurrActionIndex, pCurrAct = mpGroupMtf->NextAction() )
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{
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switch( pCurrAct->GetType() )
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{
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case META_PUSH_ACTION:
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case META_POP_ACTION:
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case META_CLIPREGION_ACTION:
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case META_ISECTRECTCLIPREGION_ACTION:
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case META_ISECTREGIONCLIPREGION_ACTION:
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case META_MOVECLIPREGION_ACTION:
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case META_LINECOLOR_ACTION:
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case META_FILLCOLOR_ACTION:
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case META_TEXTCOLOR_ACTION:
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case META_TEXTFILLCOLOR_ACTION:
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case META_TEXTLINECOLOR_ACTION:
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case META_TEXTALIGN_ACTION:
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case META_FONT_ACTION:
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case META_RASTEROP_ACTION:
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case META_REFPOINT_ACTION:
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case META_LAYOUTMODE_ACTION:
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// state-changing action - copy as-is
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aMtf.AddAction( pCurrAct->Clone() );
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break;
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case META_GRADIENT_ACTION:
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case META_HATCH_ACTION:
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case META_EPS_ACTION:
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case META_COMMENT_ACTION:
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case META_POINT_ACTION:
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case META_PIXEL_ACTION:
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case META_LINE_ACTION:
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case META_RECT_ACTION:
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case META_ROUNDRECT_ACTION:
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case META_ELLIPSE_ACTION:
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case META_ARC_ACTION:
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case META_PIE_ACTION:
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case META_CHORD_ACTION:
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case META_POLYLINE_ACTION:
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case META_POLYGON_ACTION:
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case META_POLYPOLYGON_ACTION:
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case META_BMP_ACTION:
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case META_BMPSCALE_ACTION:
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case META_BMPSCALEPART_ACTION:
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case META_BMPEX_ACTION:
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case META_BMPEXSCALE_ACTION:
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case META_BMPEXSCALEPART_ACTION:
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case META_MASK_ACTION:
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case META_MASKSCALE_ACTION:
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case META_MASKSCALEPART_ACTION:
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case META_GRADIENTEX_ACTION:
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case META_WALLPAPER_ACTION:
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case META_TRANSPARENT_ACTION:
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case META_FLOATTRANSPARENT_ACTION:
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case META_TEXT_ACTION:
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case META_TEXTARRAY_ACTION:
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case META_TEXTLINE_ACTION:
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case META_TEXTRECT_ACTION:
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case META_STRETCHTEXT_ACTION:
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// output-generating action - only
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// copy, if we're within the
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// requested subset
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if( rSubset.mnSubsetBegin <= nCurrActionIndex &&
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rSubset.mnSubsetEnd > nCurrActionIndex )
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{
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aMtf.AddAction( pCurrAct->Clone() );
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}
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break;
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default:
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OSL_ENSURE( false,
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"Unknown meta action type encountered" );
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break;
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}
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}
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aVDev.DrawTransparent( aMtf,
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aEmptyPoint,
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aOutputSizePixel,
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*mpAlphaGradient );
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}
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else
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{
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// no subsetting - render whole mtf
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aVDev.DrawTransparent( *mpGroupMtf,
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aEmptyPoint,
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aOutputSizePixel,
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*mpAlphaGradient );
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}
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// update buffered bitmap and transformation
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BitmapSharedPtr aBmp( VCLFactory::getInstance().createBitmap(
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mpCanvas,
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aVDev.GetBitmapEx(
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aEmptyPoint,
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aBitmapSizePixel ) ) );
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mxBufferBitmap = aBmp->getUNOBitmap();
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maLastTransformation = aTotalTransform;
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maLastSubset = rSubset;
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}
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// determine target transformation (we can't simply pass
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// aTotalTransform as assembled above, since we must take
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// the canvas' view state as is, it might contain clipping
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// (which, in turn, is relative to the view
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// transformation))
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// given that aTotalTransform is the identity
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// transformation, we could simply render our bitmap
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// as-is. Now, since the mxBufferBitmap content already
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// accounts for scale changes in the overall
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// transformation, we must factor this out
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// before. Generally, the transformation matrix should be
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// structured like this:
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// Translation*Rotation*Shear*Scale. Thus, to neutralize
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// the contained scaling, we've got to right-multiply with
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// the inverse.
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::basegfx::B2ISize aBmpSize(
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::basegfx::unotools::b2ISizeFromIntegerSize2D( mxBufferBitmap->getSize() ) );
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::basegfx::B2DHomMatrix aScaleCorrection;
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aScaleCorrection.scale( (double)maDstSize.Width() / aBmpSize.getX(),
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(double)maDstSize.Height() / aBmpSize.getY() );
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aTransform = aTransform * aScaleCorrection;
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rendering::RenderState aLocalState( maState );
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::canvas::tools::setRenderStateTransform(aLocalState, aTransform);
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if( ::rtl::math::approxEqual(mnAlpha, 1.0) )
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{
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// no further alpha changes necessary -> draw directly
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mpCanvas->getUNOCanvas()->drawBitmap( mxBufferBitmap,
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mpCanvas->getViewState(),
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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;
|
|
}
|
|
|
|
// 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
|
|
{
|
|
Subset aSubset;
|
|
|
|
aSubset.mnSubsetBegin = 0;
|
|
aSubset.mnSubsetEnd = -1;
|
|
|
|
return render( rTransformation, aSubset );
|
|
}
|
|
|
|
sal_Int32 TransparencyGroupAction::getActionCount() const
|
|
{
|
|
return mpGroupMtf.get() ? mpGroupMtf->GetActionCount() : 0;
|
|
}
|
|
|
|
}
|
|
|
|
ActionSharedPtr TransparencyGroupActionFactory::createTransparencyGroupAction( MtfAutoPtr& rGroupMtf,
|
|
const Renderer::Parameters& rParms,
|
|
const ::Point& rDstPoint,
|
|
const ::Size& rDstSize,
|
|
double nAlpha,
|
|
const CanvasSharedPtr& rCanvas,
|
|
const OutDevState& rState )
|
|
{
|
|
return ActionSharedPtr( new TransparencyGroupAction(rGroupMtf,
|
|
rParms,
|
|
rDstPoint,
|
|
rDstSize,
|
|
nAlpha,
|
|
rCanvas,
|
|
rState ) );
|
|
}
|
|
|
|
ActionSharedPtr TransparencyGroupActionFactory::createTransparencyGroupAction( MtfAutoPtr& rGroupMtf,
|
|
GradientAutoPtr& rAlphaGradient,
|
|
const Renderer::Parameters& rParms,
|
|
const ::Point& rDstPoint,
|
|
const ::Size& rDstSize,
|
|
const CanvasSharedPtr& rCanvas,
|
|
const OutDevState& rState )
|
|
{
|
|
return ActionSharedPtr( new TransparencyGroupAction(rGroupMtf,
|
|
rAlphaGradient,
|
|
rParms,
|
|
rDstPoint,
|
|
rDstSize,
|
|
rCanvas,
|
|
rState ) );
|
|
}
|
|
|
|
}
|
|
}
|