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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 "fpdfsdk/include/cpdfsdk_annotiterator.h" |
| 8 |
| 9 #include <algorithm> |
| 10 |
| 11 #include "fpdfsdk/include/cpdfsdk_annot.h" |
| 12 #include "fpdfsdk/include/fsdk_mgr.h" |
| 13 |
| 14 CPDFSDK_AnnotIterator::CPDFSDK_AnnotIterator(CPDFSDK_PageView* pPageView, |
| 15 bool bReverse) |
| 16 : m_bReverse(bReverse), m_pos(0) { |
| 17 const std::vector<CPDFSDK_Annot*>& annots = pPageView->GetAnnotList(); |
| 18 m_iteratorAnnotList.insert(m_iteratorAnnotList.begin(), annots.rbegin(), |
| 19 annots.rend()); |
| 20 std::stable_sort(m_iteratorAnnotList.begin(), m_iteratorAnnotList.end(), |
| 21 [](CPDFSDK_Annot* p1, CPDFSDK_Annot* p2) { |
| 22 return p1->GetLayoutOrder() < p2->GetLayoutOrder(); |
| 23 }); |
| 24 |
| 25 CPDFSDK_Annot* pTopMostAnnot = pPageView->GetFocusAnnot(); |
| 26 if (!pTopMostAnnot) |
| 27 return; |
| 28 |
| 29 auto it = std::find(m_iteratorAnnotList.begin(), m_iteratorAnnotList.end(), |
| 30 pTopMostAnnot); |
| 31 if (it != m_iteratorAnnotList.end()) { |
| 32 CPDFSDK_Annot* pReaderAnnot = *it; |
| 33 m_iteratorAnnotList.erase(it); |
| 34 m_iteratorAnnotList.insert(m_iteratorAnnotList.begin(), pReaderAnnot); |
| 35 } |
| 36 } |
| 37 |
| 38 CPDFSDK_AnnotIterator::~CPDFSDK_AnnotIterator() {} |
| 39 |
| 40 CPDFSDK_Annot* CPDFSDK_AnnotIterator::NextAnnot() { |
| 41 if (m_pos < m_iteratorAnnotList.size()) |
| 42 return m_iteratorAnnotList[m_pos++]; |
| 43 return nullptr; |
| 44 } |
| 45 |
| 46 CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot() { |
| 47 if (m_pos < m_iteratorAnnotList.size()) |
| 48 return m_iteratorAnnotList[m_iteratorAnnotList.size() - ++m_pos]; |
| 49 return nullptr; |
| 50 } |
| 51 |
| 52 CPDFSDK_Annot* CPDFSDK_AnnotIterator::Next() { |
| 53 return m_bReverse ? PrevAnnot() : NextAnnot(); |
| 54 } |
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