50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
// Copyright 2017 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fpdfsdk/cpdfsdk_annotiteration.h"
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#include <algorithm>
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#include "fpdfsdk/cpdfsdk_annot.h"
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#include "fpdfsdk/cpdfsdk_pageview.h"
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// static
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CPDFSDK_AnnotIteration CPDFSDK_AnnotIteration::CreateForDrawing(
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CPDFSDK_PageView* page_view) {
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CPDFSDK_AnnotIteration result(page_view);
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return CPDFSDK_AnnotIteration(page_view, /*put_focused_annot_at_end=*/true);
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}
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CPDFSDK_AnnotIteration::CPDFSDK_AnnotIteration(CPDFSDK_PageView* page_view)
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: CPDFSDK_AnnotIteration(page_view, /*put_focused_annot_at_end=*/false) {}
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CPDFSDK_AnnotIteration::CPDFSDK_AnnotIteration(CPDFSDK_PageView* page_view,
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bool put_focused_annot_at_end) {
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// Copying ObservedPtrs is expensive, so do it once at the end.
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std::vector<CPDFSDK_Annot*> copied_list = page_view->GetAnnotList();
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std::stable_sort(copied_list.begin(), copied_list.end(),
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[](const CPDFSDK_Annot* p1, const CPDFSDK_Annot* p2) {
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return p1->GetLayoutOrder() < p2->GetLayoutOrder();
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});
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CPDFSDK_Annot* pTopMostAnnot = page_view->GetFocusAnnot();
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if (pTopMostAnnot) {
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auto it = std::find(copied_list.begin(), copied_list.end(), pTopMostAnnot);
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if (it != copied_list.end()) {
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copied_list.erase(it);
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auto insert_it =
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put_focused_annot_at_end ? copied_list.end() : copied_list.begin();
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copied_list.insert(insert_it, pTopMostAnnot);
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}
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}
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list_.reserve(copied_list.size());
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for (auto* pAnnot : copied_list)
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list_.emplace_back(pAnnot);
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}
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CPDFSDK_AnnotIteration::~CPDFSDK_AnnotIteration() = default;
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