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#ifndef XFA_FXFA_PARSER_CXFA_LAYOUTPROCESSOR_H_
8#define XFA_FXFA_PARSER_CXFA_LAYOUTPROCESSOR_H_
9
10#include <memory>
11
12#include "core/fxcrt/fx_system.h"
13#include "xfa/fxfa/parser/xfa_object.h"
14
15class CXFA_ContainerLayoutItem;
16class CXFA_Document;
17class CXFA_ItemLayoutProcessor;
18class CXFA_LayoutItem;
19class CXFA_LayoutPageMgr;
20class CXFA_Node;
21class IFX_Pause;
22
23class CXFA_LayoutProcessor {
24 public:
25  explicit CXFA_LayoutProcessor(CXFA_Document* pDocument);
26  ~CXFA_LayoutProcessor();
27
28  CXFA_Document* GetDocument() const;
29  int32_t StartLayout(bool bForceRestart = false);
30  int32_t DoLayout(IFX_Pause* pPause = nullptr);
31  bool IncrementLayout();
32  int32_t CountPages() const;
33  CXFA_ContainerLayoutItem* GetPage(int32_t index) const;
34  CXFA_LayoutItem* GetLayoutItem(CXFA_Node* pFormItem);
35  void AddChangedContainer(CXFA_Node* pContainer);
36  void SetForceReLayout(bool bForceRestart) { m_bNeeLayout = bForceRestart; }
37  CXFA_ContainerLayoutItem* GetRootLayoutItem() const;
38  CXFA_ItemLayoutProcessor* GetRootRootItemLayoutProcessor() const {
39    return m_pRootItemLayoutProcessor.get();
40  }
41  CXFA_LayoutPageMgr* GetLayoutPageMgr() const {
42    return m_pLayoutPageMgr.get();
43  }
44
45 private:
46  bool IsNeedLayout();
47
48  CXFA_Document* const m_pDocument;
49  std::unique_ptr<CXFA_ItemLayoutProcessor> m_pRootItemLayoutProcessor;
50  std::unique_ptr<CXFA_LayoutPageMgr> m_pLayoutPageMgr;
51  CXFA_NodeArray m_rgChangedContainers;
52  uint32_t m_nProgressCounter;
53  bool m_bNeeLayout;
54};
55
56#endif  // XFA_FXFA_PARSER_CXFA_LAYOUTPROCESSOR_H_
57