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      1 // Copyright 2016 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include "core/fpdfdoc/cpdf_bookmark.h"
      8 
      9 #include <memory>
     10 #include <vector>
     11 
     12 #include "core/fpdfapi/parser/cpdf_array.h"
     13 #include "core/fpdfapi/parser/cpdf_string.h"
     14 #include "core/fpdfdoc/cpdf_nametree.h"
     15 #include "core/fxge/fx_dib.h"
     16 
     17 CPDF_Bookmark::CPDF_Bookmark() {}
     18 
     19 CPDF_Bookmark::CPDF_Bookmark(const CPDF_Bookmark& that) = default;
     20 
     21 CPDF_Bookmark::CPDF_Bookmark(CPDF_Dictionary* pDict) : m_pDict(pDict) {}
     22 
     23 CPDF_Bookmark::~CPDF_Bookmark() {}
     24 
     25 uint32_t CPDF_Bookmark::GetColorRef() const {
     26   if (!m_pDict)
     27     return FXSYS_RGB(0, 0, 0);
     28 
     29   CPDF_Array* pColor = m_pDict->GetArrayFor("C");
     30   if (!pColor)
     31     return FXSYS_RGB(0, 0, 0);
     32 
     33   int r = FXSYS_round(pColor->GetNumberAt(0) * 255);
     34   int g = FXSYS_round(pColor->GetNumberAt(1) * 255);
     35   int b = FXSYS_round(pColor->GetNumberAt(2) * 255);
     36   return FXSYS_RGB(r, g, b);
     37 }
     38 
     39 uint32_t CPDF_Bookmark::GetFontStyle() const {
     40   return m_pDict ? m_pDict->GetIntegerFor("F") : 0;
     41 }
     42 
     43 WideString CPDF_Bookmark::GetTitle() const {
     44   if (!m_pDict)
     45     return WideString();
     46 
     47   CPDF_String* pString = ToString(m_pDict->GetDirectObjectFor("Title"));
     48   if (!pString)
     49     return WideString();
     50 
     51   WideString title = pString->GetUnicodeText();
     52   int len = title.GetLength();
     53   if (!len)
     54     return WideString();
     55 
     56   std::vector<wchar_t> buf(len);
     57   for (int i = 0; i < len; i++) {
     58     wchar_t w = title[i];
     59     buf[i] = w > 0x20 ? w : 0x20;
     60   }
     61   return WideString(buf.data(), len);
     62 }
     63 
     64 CPDF_Dest CPDF_Bookmark::GetDest(CPDF_Document* pDocument) const {
     65   if (!m_pDict)
     66     return CPDF_Dest();
     67 
     68   CPDF_Object* pDest = m_pDict->GetDirectObjectFor("Dest");
     69   if (!pDest)
     70     return CPDF_Dest();
     71   if (pDest->IsString() || pDest->IsName()) {
     72     CPDF_NameTree name_tree(pDocument, "Dests");
     73     return CPDF_Dest(
     74         name_tree.LookupNamedDest(pDocument, pDest->GetUnicodeText()));
     75   }
     76   if (CPDF_Array* pArray = pDest->AsArray())
     77     return CPDF_Dest(pArray);
     78   return CPDF_Dest();
     79 }
     80 
     81 CPDF_Action CPDF_Bookmark::GetAction() const {
     82   return CPDF_Action(m_pDict ? m_pDict->GetDictFor("A") : nullptr);
     83 }
     84