trimregion.h

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/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice including the dates of first publication and
 * either this permission notice or a reference to
 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
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 * Except as contained in this notice, the name of Silicon Graphics, Inc.
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 * other dealings in this Software without prior written authorization from
 * Silicon Graphics, Inc.
 */
 
/*
 * trimregion.h
 *
 */
 
#ifndef __glutrimregion_h_
#define __glutrimregion_h_
 
#include "trimline.h"
#include "gridline.h"
#include "uarray.h"
 
class Arc;
class Backend;
 
class TrimRegion {
public:
            TrimRegion();
#if defined(__REACTOS__) && defined(__clang__)
    /* FIXME: Inspect */
    ~TrimRegion( void ) {}
#endif
    Trimline        left;
    Trimline        right;
    Gridline        top;
    Gridline        bot;
    Uarray      uarray;
 
    void        init( REAL );
    void        advance( REAL, REAL, REAL );
    void        setDu( REAL );
    void        init( long, Arc_ptr );
    void        getPts( Arc_ptr );
    void        getPts( Backend & );
    void        getGridExtent( TrimVertex *, TrimVertex * );
    void        getGridExtent( void );
    int         canTile( void );
private:
    REAL        oneOverDu;
};
 
inline void
TrimRegion::init( REAL vval ) 
{
    bot.vval = vval;
}
 
inline void
TrimRegion::advance( REAL topVindex, REAL botVindex, REAL botVval )
{
    top.vindex  = (long) topVindex;
    bot.vindex  = (long) botVindex;
    top.vval    = bot.vval;
    bot.vval    = botVval;
    top.ustart  = bot.ustart;
    top.uend    = bot.uend;
}
#endif /* __glutrimregion_h_ */