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1 // Copyright 2017 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/cpdfsdk_annotiteration.h"
8 
9 #include <algorithm>
10 #include <utility>
11 
12 #include "fpdfsdk/cpdfsdk_annot.h"
13 #include "fpdfsdk/cpdfsdk_pageview.h"
14 
CPDFSDK_AnnotIteration(CPDFSDK_PageView * pPageView,bool bReverse)15 CPDFSDK_AnnotIteration::CPDFSDK_AnnotIteration(CPDFSDK_PageView* pPageView,
16                                                bool bReverse) {
17   // Copying/sorting ObservedPtrs is expensive, so do it once at the end.
18   std::vector<CPDFSDK_Annot*> copiedList = pPageView->GetAnnotList();
19   std::stable_sort(copiedList.begin(), copiedList.end(),
20                    [](const CPDFSDK_Annot* p1, const CPDFSDK_Annot* p2) {
21                      return p1->GetLayoutOrder() < p2->GetLayoutOrder();
22                    });
23 
24   CPDFSDK_Annot* pTopMostAnnot = pPageView->GetFocusAnnot();
25   if (pTopMostAnnot) {
26     auto it = std::find(copiedList.begin(), copiedList.end(), pTopMostAnnot);
27     if (it != copiedList.end()) {
28       copiedList.erase(it);
29       copiedList.insert(copiedList.begin(), pTopMostAnnot);
30     }
31   }
32   if (bReverse)
33     std::reverse(copiedList.begin(), copiedList.end());
34 
35   m_List.reserve(copiedList.size());
36   for (auto* pAnnot : copiedList)
37     m_List.emplace_back(pAnnot);
38 }
39 
~CPDFSDK_AnnotIteration()40 CPDFSDK_AnnotIteration::~CPDFSDK_AnnotIteration() {}
41