text: /*
    ==============================================================================
  
     This file is part of the JUCE library.
     Copyright (c) 2015 - ROLI Ltd.
  
     Permission is granted to use this software under the terms of either:
     a) the GPL v2 (or any later version)
     b) the Affero GPL v3
  
     Details of these licenses can be found at: www.gnu.org/licenses
  
     JUCE 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.
  
     ------------------------------------------------------------------------------
  
     To release a closed-source product which uses JUCE, commercial licenses are
     available: visit www.juce.com for more information.
  
    ==============================================================================
  */
  
  RectanglePlacement::RectanglePlacement (const RectanglePlacement& other) noexcept
      : flags (other.flags)
  {
  }
  
  RectanglePlacement& RectanglePlacement::operator= (const RectanglePlacement& other) noexcept
  {
      flags = other.flags;
      return *this;
  }
  
  bool RectanglePlacement::operator== (const RectanglePlacement& other) const noexcept
  {
      return flags == other.flags;
  }
  
  bool RectanglePlacement::operator!= (const RectanglePlacement& other) const noexcept
  {
      return flags != other.flags;
  }
  
  void RectanglePlacement::applyTo (double& x, double& y, double& w, double& h,
                                    const double dx, const double dy, const double dw, const double dh) const noexcept
  {
      if (w == 0 || h == 0)
          return;
  
      if ((flags & stretchToFit) != 0)
      {
          x = dx;
          y = dy;
          w = dw;
          h = dh;
      }
      else
      {
          double scale = (flags & fillDestination) != 0 ? jmax (dw / w, dh / h)
                                                        : jmin (dw / w, dh / h);
  
          if ((flags & onlyReduceInSize) != 0)
              scale = jmin (scale, 1.0);
  
          if ((flags & onlyIncreaseInSize) != 0)
              scale = jmax (scale, 1.0);
  
          w *= scale;
          h *= scale;
  
          if ((flags & xLeft) != 0)
              x = dx;
          else if ((flags & xRight) != 0)
              x = dx + dw - w;
          else
              x = dx + (dw - w) * 0.5;
  
          if ((flags & yTop) != 0)
              y = dy;
          else if ((flags & yBottom) != 0)
              y = dy + dh - h;
          else
              y = dy + (dh - h) * 0.5;
      }
  }
  
  AffineTransform RectanglePlacement::getTransformToFit (const Rectangle<float>& source, const Rectangle<float>& destination) const noexcept
  {
      if (source.isEmpty())
          return AffineTransform::identity;
  
      float newX = destination.getX();
      float newY = destination.getY();
  
      float scaleX = destination.getWidth() / source.getWidth();
      float scaleY = destination.getHeight() / source.getHeight();
  
      if ((flags & stretchToFit) == 0)
      {
          scaleX = (flags & fillDestination) != 0 ? jmax (scaleX, scaleY)
                                                  : jmin (scaleX, scaleY);
  
          if ((flags & onlyReduceInSize) != 0)
              scaleX = jmin (scaleX, 1.0f);
  
          if ((flags & onlyIncreaseInSize) != 0)
              scaleX = jmax (scaleX, 1.0f);
  
          scaleY = scaleX;
  
          if ((flags & xRight) != 0)
              newX += destination.getWidth() - source.getWidth() * scaleX;             // right
          else if ((flags & xLeft) == 0)
              newX += (destination.getWidth() - source.getWidth() * scaleX) / 2.0f;    // centre
  
          if ((flags & yBottom) != 0)
              newY += destination.getHeight() - source.getHeight() * scaleX;             // bottom
          else if ((flags & yTop) == 0)
              newY += (destination.getHeight() - source.getHeight() * scaleX) / 2.0f;    // centre
      }
  
      return AffineTransform::translation (-source.getX(), -source.getY())
                  .scaled (scaleX, scaleY)
                  .translated (newX, newY);
  }
  