Crop.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/Crop.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_Crop_h
#define __PCL_Crop_h
 
 
#include <pcl/Defs.h>
#include <pcl/Diagnostics.h>
 
#include <pcl/GeometricTransformation.h>
#include <pcl/ImageResolution.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
namespace CropMode
{
   enum value_type
   {
      RelativeMargins,     // Cropping margins are relative to current image dimensions
      AbsolutePixels,      // Absolute cropping margins in pixels
      AbsoluteCentimeters, // Absolute cropping margins in centimeters
      AbsoluteInches       // Absolute cropping margins in inches
   };
}
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS Crop : public GeometricTransformation,
                       public ImageResolution
{
public:
 
   using crop_mode = CropMode::value_type;
 
   Crop( double left = 0, double top = 0, double right = 0, double bottom = 0 )
      : m_margins( left, top, right, bottom )
      , m_mode( CropMode::RelativeMargins )
   {
   }
 
   template <typename T>
   Crop( const GenericRectangle<T>& r )
      : m_margins( r )
      , m_mode( CropMode::RelativeMargins )
   {
   }
 
   Crop( const Crop& ) = default;
 
   Crop& operator =( const Crop& ) = default;
 
   DRect Margins() const
   {
      return m_margins;
   }
 
   template <typename T>
   void SetMargins( const GenericRectangle<T>& r )
   {
      m_margins = r;
   }
 
   void SetMargins( int left, int top, int right, int bottom )
   {
      m_margins = Rect( left, top, right, bottom );
   }
 
   crop_mode Mode() const
   {
      return m_mode;
   }
 
   bool IsRelative() const
   {
      return m_mode == CropMode::RelativeMargins;
   }
 
   bool IsAbsolute() const
   {
      return !IsRelative();
   }
 
   void SetMode( crop_mode mode )
   {
      m_mode = mode;
   }
 
   const DVector& FillValues() const
   {
      return m_fillValues;
   }
 
   void SetFillValues( const DVector& fillValues )
   {
      m_fillValues = fillValues;
   }
 
   void GetNewSizes( int& width, int& height ) const override;
 
protected:
 
   DRect     m_margins;
   crop_mode m_mode;
   DVector   m_fillValues;
 
   // Inherited from ImageTransformation.
   void Apply( pcl::Image& ) const override;
   void Apply( pcl::DImage& ) const override;
   void Apply( pcl::ComplexImage& ) const override;
   void Apply( pcl::DComplexImage& ) const override;
   void Apply( pcl::UInt8Image& ) const override;
   void Apply( pcl::UInt16Image& ) const override;
   void Apply( pcl::UInt32Image& ) const override;
};
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_Crop_h
 
// ----------------------------------------------------------------------------
// EOF pcl/Crop.h - Released 2024-06-18T15:48:54Z