Rect.h

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  Rect.h
 
  Dmitry Vedenko
 
**********************************************************************/
#pragma once
 
#include "Point.h"
#include "Size.h"
 
#include <algorithm>
 
namespace graphics
{
template <typename DataType>
struct RectType final
{
   PointType<DataType> origin;
   SizeType<DataType> size;
 
   bool IsValid() const noexcept
   {
      return size.width > 0 && size.height > 0;
   }
 
   bool Contains(PointType<DataType> pt) const noexcept
   {
      return pt.x >= origin.x && pt.y >= origin.y &&
             (pt.x < (origin.x + size.width)) &&
             (pt.y < (origin.y + size.height));
   }
};
 
template <typename DataType>
bool operator==(
   const RectType<DataType> lhs, const RectType<DataType> rhs) noexcept
{
   return lhs.origin == rhs.origin && lhs.size == rhs.size;
}
 
template <typename DataType>
bool operator!=(
   const RectType<DataType> lhs, const RectType<DataType> rhs) noexcept
{
   return !(lhs == rhs);
}
 
template <typename To, typename From>
RectType<To> rect_cast(RectType<From> rect)
{
   return { point_cast<To>(rect.origin), size_cast<To>(rect.size) };
}
 
using Rect = RectType<float>;
 
} // namespace graphics