dd48951205
2005/03/14 16:04:55 thb 1.3.2.1: #i35136# #i36914# #i41113# #i44100# #i40115# #i41839# #i44404# Merge from presfixes01 patches
171 lines
6.7 KiB
C++
171 lines
6.7 KiB
C++
/*************************************************************************
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*
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* $RCSfile: transparencygroupaction.hxx,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 08:32:39 $
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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 _CPPCANVAS_TRANSPARENCYGROUPACTION_HXX
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#define _CPPCANVAS_TRANSPARENCYGROUPACTION_HXX
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#include <cppcanvas/canvas.hxx>
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#include <cppcanvas/renderer.hxx>
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#include <action.hxx>
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#include <memory> // auto_ptr
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class Point;
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class Size;
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class GDIMetaFile;
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class Gradient;
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/* Definition of internal::TransparencyGroupActionFactory class */
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namespace cppcanvas
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{
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namespace internal
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{
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struct OutDevState;
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typedef ::std::auto_ptr< GDIMetaFile > MtfAutoPtr;
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typedef ::std::auto_ptr< Gradient > GradientAutoPtr;
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/** Transparency group action.
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This action groups a bunch of other actions, to be
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rendered with the given transparency setting against the
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background.
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Creates encapsulated converters between GDIMetaFile and
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XCanvas. The Canvas argument is deliberately placed at the
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constructor, to force reconstruction of this object for a
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new canvas. This considerably eases internal state
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handling, since a lot of the internal state (e.g. fonts,
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text layout) is Canvas-dependent.
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*/
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class TransparencyGroupActionFactory
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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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static ActionSharedPtr createTransparencyGroupAction( 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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static ActionSharedPtr createTransparencyGroupAction( 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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private:
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// static factory, disable big four
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TransparencyGroupActionFactory();
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~TransparencyGroupActionFactory();
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TransparencyGroupActionFactory(const TransparencyGroupActionFactory&);
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TransparencyGroupActionFactory& operator=( const TransparencyGroupActionFactory& );
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};
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}
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}
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#endif /*_CPPCANVAS_TRANSPARENCYGROUPACTION_HXX */
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