Rect.cpp

/* -*- mode: c++ -*- */
/*
 * \@copyright This File is part of the Board library which is
 * licensed under the terms of the GNU Lesser General Public Licence.
 * See the LICENCE file for further details.
 */
 
#include "Board/Rect.h"
 
namespace LibBoard {
 
Rect
operator||( const Rect & rectA, const Rect & rectB )
{
  Rect rect;
  rect.top = ( rectA.top > rectB.top ) ? rectA.top : rectB.top;
  rect.left = (rectA.left < rectB.left) ? rectA.left : rectB.left;
  if ( rectA.left + rectA.width > rectB.left + rectB.width )
    rect.width = rectA.left + rectA.width - rect.left;
  else
    rect.width = rectB.left + rectB.width - rect.left;
  if ( rectA.top - rectA.height < rectB.top - rectB.height )
    rect.height = rect.top - ( rectA.top - rectA.height );
  else
    rect.height = rect.top - ( rectB.top - rectB.height );
  return rect;
}
 
Rect
operator&&( const Rect & rectA, const Rect & rectB )
{
  Rect rect;
  rect.top = ( rectA.top < rectB.top ) ? rectA.top : rectB.top;
  rect.left = (rectA.left > rectB.left) ? rectA.left : rectB.left;
  if ( rectA.left + rectA.width < rectB.left + rectB.width )
    rect.width = rectA.left + rectA.width - rect.left;
  else
    rect.width = rectB.left + rectB.width - rect.left;
  if ( rectA.top - rectA.height > rectB.top - rectB.height )
    rect.height = rect.top - ( rectA.top - rectA.height );
  else
    rect.height = rect.top - ( rectB.top - rectB.height );
  if ( rect.height < 0 ) rect.height = 0;
  if ( rect.width < 0 ) rect.width = 0;
  return rect;
}
 
} // namespace LibBoard
 
std::ostream &
operator<<( std::ostream & out, const LibBoard::Rect & rect )
{
  out << "Rect(" 
      << rect.left << "," << rect.top
      << "+" << rect.width << "x" << rect.height << ")";
  return out;
}