// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#ifndef CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_
#define CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_

#include <set>

#include "core/fpdfapi/page/cpdf_colorspace.h"
#include "core/fxcrt/retain_ptr.h"

class CPDF_Document;

class CPDF_PatternCS final : public CPDF_ColorSpace {
 public:
  template <typename T, typename... Args>
  friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);

  ~CPDF_PatternCS() override;

  // Called for the stock pattern, since it is not initialized via
  // CPDF_ColorSpace::Load().
  void InitializeStockPattern();

  // CPDF_ColorSpace:
  bool GetRGB(const float* pBuf, float* R, float* G, float* B) const override;
  bool GetPatternRGB(const PatternValue& value,
                     float* R,
                     float* G,
                     float* B) const override;
  CPDF_PatternCS* AsPatternCS() override;
  const CPDF_PatternCS* AsPatternCS() const override;
  uint32_t v_Load(CPDF_Document* pDoc,
                  const CPDF_Array* pArray,
                  std::set<const CPDF_Object*>* pVisited) override;

 private:
  explicit CPDF_PatternCS(CPDF_Document* pDoc);

  RetainPtr<CPDF_ColorSpace> m_pBaseCS;
};

#endif  // CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_