b54513d952
2007/01/29 14:02:16 thb 1.4.12.1: Issue number: #i37778# Larger slideshow refactoring. Wrote design and coding style manifest, and adapted the code to actually conform to this. In detail: - cleaned up ownership/disposable/weak_ptr story. removed hacks and explicit Disposable implementations, where workaround were available - removed object mutices, where superfluous - reworked EventMultiplexer (using templatized listener class now), added more events. EventMultiplexer now serves as a true blackboard - reworked directory structure: disjunct parts are now physically separated into directories, instantiation happens via factories & abstract interfaces - added CursorManager, to make setting mouse cursor less hackish - reworked DrawShape, to implement SeparateListener pattern - reworked IntrinsicAnimationActivity, to avoid cyclic references - modified hyperlink & shape cursor handling to communicate via EventMultiplexer - renamed & cleaned up files (presentation.cxx now named slideshowimpl.cxx, etc.) - added first version of the z-order fix to layer/layermanager - cleaned up include guards and include syntax
107 lines
4.3 KiB
C++
107 lines
4.3 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: parametricpolypolygon.hxx,v $
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*
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* $Revision: 1.5 $
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*
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* last change: $Author: obo $ $Date: 2007-07-17 14:59:05 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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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 2005 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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#ifndef INCLUDED_SLIDESHOW_PARAMETRICPOLYPOLYGON_HXX
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#define INCLUDED_SLIDESHOW_PARAMETRICPOLYPOLYGON_HXX
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#include <basegfx/polygon/b2dpolypolygon.hxx>
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#include <boost/shared_ptr.hpp>
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/* Definition of ParametricPolyPolygon interface */
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namespace slideshow
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{
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namespace internal
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{
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/** Interface defining a parametric poly-polygon.
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This interface defines a poly-polygon, whose actual shape
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is parameterized by a floating point value. This is
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e.g. used to generically access the various clip polygon
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generators for transition effects.
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Since for every parametric poly-polygon, there is a set of
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variations, which can easily be generated by simple
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transformations or change in parameter range sweep
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direction, objects implementing this interface only
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generate <em>one</em> prototypical instance of the
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parametric poly-polygon. Generally speaking, the main
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effect direction should be horizontal, it should make
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increasingly more area visible (transition 'in'), and when
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there is a designated direction given, that should be
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left-to-right.
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*/
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class ParametricPolyPolygon
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{
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public:
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virtual ~ParametricPolyPolygon() {}
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/** Retrieve the poly-polygon for value t.
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@param t
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Current parameter value to retrieve the corresponding
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poly-polygon for. Permissible values for t must be in
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the range [0,1].
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@return a poly-polygon corresponding to the given
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parameter value. The poly-polygon is interpreted as
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living in the unit rectangle (i.e. [0,1]x[0,1]), but
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is not necessarily constrained to completely lie in
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this area (this very much depends on the actual effect
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to be generated). Although, from a performance
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perspective, it currently <em>is</em> advantageous to
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try to keep the poly-polygon within these bounds (at
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least if there are no hard reasons not to do so),
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because then reversion or out transformations are
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potentially faster to compute (see the
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TransitionInfo::meReverseMethod member in
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transitionfactory.cxx). Furthermore, if one of the
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polygon modifications involve subtraction (also see
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TransitionInfo::meReverseMethod), all generated
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polygons should be oriented clock-wise
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(i.e. traversing the polygon vertices with increasing
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vertex index should generate a clock-wise movement).
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*/
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virtual ::basegfx::B2DPolyPolygon operator()( double t ) = 0;
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};
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typedef ::boost::shared_ptr< ParametricPolyPolygon > ParametricPolyPolygonSharedPtr;
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}
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}
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#endif /* INCLUDED_SLIDESHOW_PARAMETRICPOLYPOLYGON_HXX */
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