geometry_func.cpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */

 
#include "../stdafx.h"
#include "geometry_func.hpp"
#include "math_func.hpp"
#include "../strings_func.h"
#include "../strings_type.h"
 
#include "../safeguards.h"

AlignmentH Alignment::ResolveRTL() const
{
  switch (this->h) {
    case AlignmentH::Start: return _current_text_dir == TD_RTL ? AlignmentH::ForceRight : AlignmentH::ForceLeft;
    case AlignmentH::End: return _current_text_dir == TD_RTL ? AlignmentH::ForceLeft : AlignmentH::ForceRight;
    default: return this->h;
  }
}

Dimension maxdim(const Dimension &d1, const Dimension &d2)
{
  Dimension d;
  d.width  = std::max(d1.width,  d2.width);
  d.height = std::max(d1.height, d2.height);
  return d;
}

Rect BoundingRect(const Rect &r1, const Rect &r2)
{
  /* If either the first or the second is empty, return the other. */
  if (IsEmptyRect(r1)) return r2;
  if (IsEmptyRect(r2)) return r1;
 
  Rect r;
 
  r.top    = std::min(r1.top,    r2.top);
  r.bottom = std::max(r1.bottom, r2.bottom);
  r.left   = std::min(r1.left,   r2.left);
  r.right  = std::max(r1.right,  r2.right);
 
  return r;
}