cpdfsdk_annotiterator.h

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// Copyright 2016 The PDFium Authors
// 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 FPDFSDK_CPDFSDK_ANNOTITERATOR_H_
#define FPDFSDK_CPDFSDK_ANNOTITERATOR_H_
 
#include <vector>
 
#include "core/fpdfdoc/cpdf_annot.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/containers/span.h"
 
class CPDFSDK_Annot;
class CPDFSDK_PageView;
 
class CPDFSDK_AnnotIterator {
 public:
  CPDFSDK_AnnotIterator(
      CPDFSDK_PageView* pPageView,
      const std::vector<CPDF_Annot::Subtype>& subtypes_to_iterate);
  ~CPDFSDK_AnnotIterator();
 
  CPDFSDK_Annot* GetFirstAnnot();
  CPDFSDK_Annot* GetLastAnnot();
  CPDFSDK_Annot* GetNextAnnot(CPDFSDK_Annot* pAnnot);
  CPDFSDK_Annot* GetPrevAnnot(CPDFSDK_Annot* pAnnot);
 
 private:
  enum class TabOrder : uint8_t { kStructure = 0, kRow, kColumn };
 
  static TabOrder GetTabOrder(CPDFSDK_PageView* pPageView);
 
  void GenerateResults();
  void CollectAnnots(std::vector<UnownedPtr<CPDFSDK_Annot>>* pArray);
  CFX_FloatRect AddToAnnotsList(std::vector<UnownedPtr<CPDFSDK_Annot>>& sa,
                                size_t idx);
  void AddSelectedToAnnots(std::vector<UnownedPtr<CPDFSDK_Annot>>& sa,
                           pdfium::span<const size_t> aSelect);
 
  UnownedPtr<CPDFSDK_PageView> const m_pPageView;
  const std::vector<CPDF_Annot::Subtype> m_subtypes;
  const TabOrder m_eTabOrder;
  std::vector<UnownedPtr<CPDFSDK_Annot>> m_Annots;
};
 
#endif  // FPDFSDK_CPDFSDK_ANNOTITERATOR_H_