TGDimension.cxx

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// @(#)root/gui:$Id$
// Author: Fons Rademakers   02/01/98
 
/*************************************************************************
 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
/**************************************************************************
 
    This source is based on Xclass95, a Win95-looking GUI toolkit.
    Copyright (C) 1996, 1997 David Barth, Ricky Ralston, Hector Peraza.
 
    Xclass95 is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
**************************************************************************/
 
 
/**
\defgroup guigeom GUI Geometry
\ingroup guiwidgets
 
Several small geometry classes that implement dimensions
(width and height), positions (x and y), insets and rectangles.
They are trivial and their members are public.
 
\class TGDimension
\ingroup guigeom
\class TGPosition
\ingroup guigeom
\class TGLongPosition
\ingroup guigeom
\class TGInsets
\ingroup guigeom
\class TGRectangle
\ingroup guigeom
 
*/
 
 
#include "TGDimension.h"
#include "TMathBase.h"
 
void TGRectangle::Merge(const TGRectangle &r)
{
   // Merge parameters
   Int_t max_x = TMath::Max(fX + (Int_t) fW, r.fX + (Int_t) r.fW);
   fX = TMath::Min(fX, r.fX);
   Int_t max_y = TMath::Max(fY + (Int_t) fH, r.fY + (Int_t) r.fH);
   fY = TMath::Min(fY, r.fY);
   fW = max_x - fX;
   fH = max_y - fY;
}